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 "videocodec.h"
  75
  76 #include <asm/byteorder.h>
  77 #include <asm/io.h>
  78 #include <asm/uaccess.h>
  79 #include <linux/proc_fs.h>
  80
  81 #include <linux/video_decoder.h>
  82 #include <linux/video_encoder.h>
  83 #include <linux/mutex.h>
  84 #include "zoran.h"
  85 #include "zoran_device.h"
  86 #include "zoran_card.h"
  87
  88         /* we declare some card type definitions here, they mean
  89          * the same as the v4l1 ZORAN_VID_TYPE above, except it's v4l2 */
  90 #define ZORAN_V4L2_VID_FLAGS ( \
  91                                 V4L2_CAP_STREAMING |\
  92                                 V4L2_CAP_VIDEO_CAPTURE |\
  93                                 V4L2_CAP_VIDEO_OUTPUT |\
  94                                 V4L2_CAP_VIDEO_OVERLAY \
  95                               )
  96
  97 #include <asm/byteorder.h>
  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_RGB565, 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 extern int v4l_nbufs;
 198 extern int v4l_bufsize;
 199 extern int jpg_nbufs;
 200 extern int jpg_bufsize;
 201 extern int pass_through;
 202
 203 static int lock_norm;   /* 0 = default 1 = Don't change TV standard (norm) */
 204 module_param(lock_norm, int, 0644);
 205 MODULE_PARM_DESC(lock_norm, "Prevent norm changes (1 = ignore, >1 = fail)");
 206
 207         /* small helper function for calculating buffersizes for v4l2
 208          * we calculate the nearest higher power-of-two, which
 209          * will be the recommended buffersize */
 210 static __u32
 211 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
 212 {
 213         __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
 214         __u32 num = (1024 * 512) / (div);
 215         __u32 result = 2;
 216
 217         num--;
 218         while (num) {
 219                 num >>= 1;
 220                 result <<= 1;
 221         }
 222
 223         if (result > jpg_bufsize)
 224                 return jpg_bufsize;
 225         if (result < 8192)
 226                 return 8192;
 227         return result;
 228 }
 229
 230 /* forward references */
 231 static void v4l_fbuffer_free(struct file *file);
 232 static void jpg_fbuffer_free(struct file *file);
 233
 234 /*
 235  *   Allocate the V4L grab buffers
 236  *
 237  *   These have to be pysically contiguous.
 238  *   If v4l_bufsize <= MAX_KMALLOC_MEM we use kmalloc
 239  *   else we try to allocate them with bigphysarea_alloc_pages
 240  *   if the bigphysarea patch is present in the kernel,
 241  *   else we try to use high memory (if the user has bootet
 242  *   Linux with the necessary memory left over).
 243  */
 244
 245 static unsigned long
 246 get_high_mem (unsigned long size)
 247 {
 248 /*
 249  * Check if there is usable memory at the end of Linux memory
 250  * of at least size. Return the physical address of this memory,
 251  * return 0 on failure.
 252  *
 253  * The idea is from Alexandro Rubini's book "Linux device drivers".
 254  * The driver from him which is downloadable from O'Reilly's
 255  * web site misses the "virt_to_phys(high_memory)" part
 256  * (and therefore doesn't work at all - at least with 2.2.x kernels).
 257  *
 258  * It should be unnecessary to mention that THIS IS DANGEROUS,
 259  * if more than one driver at a time has the idea to use this memory!!!!
 260  */
 261
 262         volatile unsigned char __iomem *mem;
 263         unsigned char c;
 264         unsigned long hi_mem_ph;
 265         unsigned long i;
 266
 267         /* Map the high memory to user space */
 268
 269         hi_mem_ph = virt_to_phys(high_memory);
 270
 271         mem = ioremap(hi_mem_ph, size);
 272         if (!mem) {
 273                 dprintk(1,
 274                         KERN_ERR "%s: get_high_mem() - ioremap failed\n",
 275                         ZORAN_NAME);
 276                 return 0;
 277         }
 278
 279         for (i = 0; i < size; i++) {
 280                 /* Check if it is memory */
 281                 c = i & 0xff;
 282                 writeb(c, mem + i);
 283                 if (readb(mem + i) != c)
 284                         break;
 285                 c = 255 - c;
 286                 writeb(c, mem + i);
 287                 if (readb(mem + i) != c)
 288                         break;
 289                 writeb(0, mem + i);     /* zero out memory */
 290
 291                 /* give the kernel air to breath */
 292                 if ((i & 0x3ffff) == 0x3ffff)
 293                         schedule();
 294         }
 295
 296         iounmap(mem);
 297
 298         if (i != size) {
 299                 dprintk(1,
 300                         KERN_ERR
 301                         "%s: get_high_mem() - requested %lu, avail %lu\n",
 302                         ZORAN_NAME, size, i);
 303                 return 0;
 304         }
 305
 306         return hi_mem_ph;
 307 }
 308
 309 static int
 310 v4l_fbuffer_alloc (struct file *file)
 311 {
 312         struct zoran_fh *fh = file->private_data;
 313         struct zoran *zr = fh->zr;
 314         int i, off;
 315         unsigned char *mem;
 316         unsigned long pmem = 0;
 317
 318         /* we might have old buffers lying around... */
 319         if (fh->v4l_buffers.ready_to_be_freed) {
 320                 v4l_fbuffer_free(file);
 321         }
 322
 323         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
 324                 if (fh->v4l_buffers.buffer[i].fbuffer)
 325                         dprintk(2,
 326                                 KERN_WARNING
 327                                 "%s: v4l_fbuffer_alloc() - buffer %d allready allocated!?\n",
 328                                 ZR_DEVNAME(zr), i);
 329
 330                 //udelay(20);
 331                 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
 332                         /* Use kmalloc */
 333
 334                         mem = kmalloc(fh->v4l_buffers.buffer_size, GFP_KERNEL);
 335                         if (!mem) {
 336                                 dprintk(1,
 337                                         KERN_ERR
 338                                         "%s: v4l_fbuffer_alloc() - kmalloc for V4L buf %d failed\n",
 339                                         ZR_DEVNAME(zr), i);
 340                                 v4l_fbuffer_free(file);
 341                                 return -ENOBUFS;
 342                         }
 343                         fh->v4l_buffers.buffer[i].fbuffer = mem;
 344                         fh->v4l_buffers.buffer[i].fbuffer_phys =
 345                             virt_to_phys(mem);
 346                         fh->v4l_buffers.buffer[i].fbuffer_bus =
 347                             virt_to_bus(mem);
 348                         for (off = 0; off < fh->v4l_buffers.buffer_size;
 349                              off += PAGE_SIZE)
 350                                 SetPageReserved(MAP_NR(mem + off));
 351                         dprintk(4,
 352                                 KERN_INFO
 353                                 "%s: v4l_fbuffer_alloc() - V4L frame %d mem 0x%lx (bus: 0x%lx)\n",
 354                                 ZR_DEVNAME(zr), i, (unsigned long) mem,
 355                                 virt_to_bus(mem));
 356                 } else {
 357
 358                         /* Use high memory which has been left at boot time */
 359
 360                         /* Ok., Ok. this is an evil hack - we make
 361                          * the assumption that physical addresses are
 362                          * the same as bus addresses (true at least
 363                          * for Intel processors). The whole method of
 364                          * obtaining and using this memory is not very
 365                          * nice - but I hope it saves some poor users
 366                          * from kernel hacking, which might have even
 367                          * more evil results */
 368
 369                         if (i == 0) {
 370                                 int size =
 371                                     fh->v4l_buffers.num_buffers *
 372                                     fh->v4l_buffers.buffer_size;
 373
 374                                 pmem = get_high_mem(size);
 375                                 if (pmem == 0) {
 376                                         dprintk(1,
 377                                                 KERN_ERR
 378                                                 "%s: v4l_fbuffer_alloc() - get_high_mem (size = %d KB) for V4L bufs failed\n",
 379                                                 ZR_DEVNAME(zr), size >> 10);
 380                                         return -ENOBUFS;
 381                                 }
 382                                 fh->v4l_buffers.buffer[0].fbuffer = NULL;
 383                                 fh->v4l_buffers.buffer[0].fbuffer_phys = pmem;
 384                                 fh->v4l_buffers.buffer[0].fbuffer_bus = pmem;
 385                                 dprintk(4,
 386                                         KERN_INFO
 387                                         "%s: v4l_fbuffer_alloc() - using %d KB high memory\n",
 388                                         ZR_DEVNAME(zr), size >> 10);
 389                         } else {
 390                                 fh->v4l_buffers.buffer[i].fbuffer = NULL;
 391                                 fh->v4l_buffers.buffer[i].fbuffer_phys =
 392                                     pmem + i * fh->v4l_buffers.buffer_size;
 393                                 fh->v4l_buffers.buffer[i].fbuffer_bus =
 394                                     pmem + i * fh->v4l_buffers.buffer_size;
 395                         }
 396                 }
 397         }
 398
 399         fh->v4l_buffers.allocated = 1;
 400
 401         return 0;
 402 }
 403
 404 /* free the V4L grab buffers */
 405 static void
 406 v4l_fbuffer_free (struct file *file)
 407 {
 408         struct zoran_fh *fh = file->private_data;
 409         struct zoran *zr = fh->zr;
 410         int i, off;
 411         unsigned char *mem;
 412
 413         dprintk(4, KERN_INFO "%s: v4l_fbuffer_free()\n", ZR_DEVNAME(zr));
 414
 415         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
 416                 if (!fh->v4l_buffers.buffer[i].fbuffer)
 417                         continue;
 418
 419                 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
 420                         mem = fh->v4l_buffers.buffer[i].fbuffer;
 421                         for (off = 0; off < fh->v4l_buffers.buffer_size;
 422                              off += PAGE_SIZE)
 423                                 ClearPageReserved(MAP_NR(mem + off));
 424                         kfree((void *) fh->v4l_buffers.buffer[i].fbuffer);
 425                 }
 426                 fh->v4l_buffers.buffer[i].fbuffer = NULL;
 427         }
 428
 429         fh->v4l_buffers.allocated = 0;
 430         fh->v4l_buffers.ready_to_be_freed = 0;
 431 }
 432
 433 /*
 434  *   Allocate the MJPEG grab buffers.
 435  *
 436  *   If the requested buffer size is smaller than MAX_KMALLOC_MEM,
 437  *   kmalloc is used to request a physically contiguous area,
 438  *   else we allocate the memory in framgents with get_zeroed_page.
 439  *
 440  *   If a Natoma chipset is present and this is a revision 1 zr36057,
 441  *   each MJPEG buffer needs to be physically contiguous.
 442  *   (RJ: This statement is from Dave Perks' original driver,
 443  *   I could never check it because I have a zr36067)
 444  *   The driver cares about this because it reduces the buffer
 445  *   size to MAX_KMALLOC_MEM in that case (which forces contiguous allocation).
 446  *
 447  *   RJ: The contents grab buffers needs never be accessed in the driver.
 448  *       Therefore there is no need to allocate them with vmalloc in order
 449  *       to get a contiguous virtual memory space.
 450  *       I don't understand why many other drivers first allocate them with
 451  *       vmalloc (which uses internally also get_zeroed_page, but delivers you
 452  *       virtual addresses) and then again have to make a lot of efforts
 453  *       to get the physical address.
 454  *
 455  *   Ben Capper:
 456  *       On big-endian architectures (such as ppc) some extra steps
 457  *       are needed. When reading and writing to the stat_com array
 458  *       and fragment buffers, the device expects to see little-
 459  *       endian values. The use of cpu_to_le32() and le32_to_cpu()
 460  *       in this function (and one or two others in zoran_device.c)
 461  *       ensure that these values are always stored in little-endian
 462  *       form, regardless of architecture. The zr36057 does Very Bad
 463  *       Things on big endian architectures if the stat_com array
 464  *       and fragment buffers are not little-endian.
 465  */
 466
 467 static int
 468 jpg_fbuffer_alloc (struct file *file)
 469 {
 470         struct zoran_fh *fh = file->private_data;
 471         struct zoran *zr = fh->zr;
 472         int i, j, off;
 473         unsigned long mem;
 474
 475         /* we might have old buffers lying around */
 476         if (fh->jpg_buffers.ready_to_be_freed) {
 477                 jpg_fbuffer_free(file);
 478         }
 479
 480         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
 481                 if (fh->jpg_buffers.buffer[i].frag_tab)
 482                         dprintk(2,
 483                                 KERN_WARNING
 484                                 "%s: jpg_fbuffer_alloc() - buffer %d allready allocated!?\n",
 485                                 ZR_DEVNAME(zr), i);
 486
 487                 /* Allocate fragment table for this buffer */
 488
 489                 mem = get_zeroed_page(GFP_KERNEL);
 490                 if (mem == 0) {
 491                         dprintk(1,
 492                                 KERN_ERR
 493                                 "%s: jpg_fbuffer_alloc() - get_zeroed_page (frag_tab) failed for buffer %d\n",
 494                                 ZR_DEVNAME(zr), i);
 495                         jpg_fbuffer_free(file);
 496                         return -ENOBUFS;
 497                 }
 498                 fh->jpg_buffers.buffer[i].frag_tab = (__le32 *) mem;
 499                 fh->jpg_buffers.buffer[i].frag_tab_bus =
 500                     virt_to_bus((void *) mem);
 501
 502                 //if (alloc_contig) {
 503                 if (fh->jpg_buffers.need_contiguous) {
 504                         mem =
 505                             (unsigned long) kmalloc(fh->jpg_buffers.
 506                                                     buffer_size,
 507                                                     GFP_KERNEL);
 508                         if (mem == 0) {
 509                                 dprintk(1,
 510                                         KERN_ERR
 511                                         "%s: jpg_fbuffer_alloc() - kmalloc failed for buffer %d\n",
 512                                         ZR_DEVNAME(zr), i);
 513                                 jpg_fbuffer_free(file);
 514                                 return -ENOBUFS;
 515                         }
 516                         fh->jpg_buffers.buffer[i].frag_tab[0] =
 517                             cpu_to_le32(virt_to_bus((void *) mem));
 518                         fh->jpg_buffers.buffer[i].frag_tab[1] =
 519                             cpu_to_le32(((fh->jpg_buffers.buffer_size / 4) << 1) | 1);
 520                         for (off = 0; off < fh->jpg_buffers.buffer_size;
 521                              off += PAGE_SIZE)
 522                                 SetPageReserved(MAP_NR(mem + off));
 523                 } else {
 524                         /* jpg_bufsize is allreay page aligned */
 525                         for (j = 0;
 526                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
 527                              j++) {
 528                                 mem = get_zeroed_page(GFP_KERNEL);
 529                                 if (mem == 0) {
 530                                         dprintk(1,
 531                                                 KERN_ERR
 532                                                 "%s: jpg_fbuffer_alloc() - get_zeroed_page failed for buffer %d\n",
 533                                                 ZR_DEVNAME(zr), i);
 534                                         jpg_fbuffer_free(file);
 535                                         return -ENOBUFS;
 536                                 }
 537
 538                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
 539                                     cpu_to_le32(virt_to_bus((void *) mem));
 540                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
 541                                                                    1] =
 542                                     cpu_to_le32((PAGE_SIZE / 4) << 1);
 543                                 SetPageReserved(MAP_NR(mem));
 544                         }
 545
 546                         fh->jpg_buffers.buffer[i].frag_tab[2 * j - 1] |= cpu_to_le32(1);
 547                 }
 548         }
 549
 550         dprintk(4,
 551                 KERN_DEBUG "%s: jpg_fbuffer_alloc() - %d KB allocated\n",
 552                 ZR_DEVNAME(zr),
 553                 (fh->jpg_buffers.num_buffers *
 554                  fh->jpg_buffers.buffer_size) >> 10);
 555
 556         fh->jpg_buffers.allocated = 1;
 557
 558         return 0;
 559 }
 560
 561 /* free the MJPEG grab buffers */
 562 static void
 563 jpg_fbuffer_free (struct file *file)
 564 {
 565         struct zoran_fh *fh = file->private_data;
 566         struct zoran *zr = fh->zr;
 567         int i, j, off;
 568         unsigned char *mem;
 569
 570         dprintk(4, KERN_DEBUG "%s: jpg_fbuffer_free()\n", ZR_DEVNAME(zr));
 571
 572         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
 573                 if (!fh->jpg_buffers.buffer[i].frag_tab)
 574                         continue;
 575
 576                 //if (alloc_contig) {
 577                 if (fh->jpg_buffers.need_contiguous) {
 578                         if (fh->jpg_buffers.buffer[i].frag_tab[0]) {
 579                                 mem = (unsigned char *) bus_to_virt(le32_to_cpu(
 580                                         fh->jpg_buffers.buffer[i].frag_tab[0]));
 581                                 for (off = 0;
 582                                      off < fh->jpg_buffers.buffer_size;
 583                                      off += PAGE_SIZE)
 584                                         ClearPageReserved(MAP_NR
 585                                                           (mem + off));
 586                                 kfree(mem);
 587                                 fh->jpg_buffers.buffer[i].frag_tab[0] = 0;
 588                                 fh->jpg_buffers.buffer[i].frag_tab[1] = 0;
 589                         }
 590                 } else {
 591                         for (j = 0;
 592                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
 593                              j++) {
 594                                 if (!fh->jpg_buffers.buffer[i].
 595                                     frag_tab[2 * j])
 596                                         break;
 597                                 ClearPageReserved(MAP_NR
 598                                                   (bus_to_virt
 599                                                    (le32_to_cpu
 600                                                     (fh->jpg_buffers.
 601                                                      buffer[i].frag_tab[2 *
 602                                                                        j]))));
 603                                 free_page((unsigned long)
 604                                           bus_to_virt
 605                                                   (le32_to_cpu
 606                                                    (fh->jpg_buffers.
 607                                                       buffer[i].
 608                                                       frag_tab[2 * j])));
 609                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
 610                                     0;
 611                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
 612                                                                    1] = 0;
 613                         }
 614                 }
 615
 616                 free_page((unsigned long) fh->jpg_buffers.buffer[i].
 617                           frag_tab);
 618                 fh->jpg_buffers.buffer[i].frag_tab = NULL;
 619         }
 620
 621         fh->jpg_buffers.allocated = 0;
 622         fh->jpg_buffers.ready_to_be_freed = 0;
 623 }
 624
 625 /*
 626  *   V4L Buffer grabbing
 627  */
 628
 629 static int
 630 zoran_v4l_set_format (struct file               *file,
 631                       int                        width,
 632                       int                        height,
 633                       const struct zoran_format *format)
 634 {
 635         struct zoran_fh *fh = file->private_data;
 636         struct zoran *zr = fh->zr;
 637         int bpp;
 638
 639         /* Check size and format of the grab wanted */
 640
 641         if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
 642             height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
 643                 dprintk(1,
 644                         KERN_ERR
 645                         "%s: v4l_set_format() - wrong frame size (%dx%d)\n",
 646                         ZR_DEVNAME(zr), width, height);
 647                 return -EINVAL;
 648         }
 649
 650         bpp = (format->depth + 7) / 8;
 651
 652         /* Check against available buffer size */
 653         if (height * width * bpp > fh->v4l_buffers.buffer_size) {
 654                 dprintk(1,
 655                         KERN_ERR
 656                         "%s: v4l_set_format() - video buffer size (%d kB) is too small\n",
 657                         ZR_DEVNAME(zr), fh->v4l_buffers.buffer_size >> 10);
 658                 return -EINVAL;
 659         }
 660
 661         /* The video front end needs 4-byte alinged line sizes */
 662
 663         if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
 664                 dprintk(1,
 665                         KERN_ERR
 666                         "%s: v4l_set_format() - wrong frame alingment\n",
 667                         ZR_DEVNAME(zr));
 668                 return -EINVAL;
 669         }
 670
 671         fh->v4l_settings.width = width;
 672         fh->v4l_settings.height = height;
 673         fh->v4l_settings.format = format;
 674         fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
 675
 676         return 0;
 677 }
 678
 679 static int
 680 zoran_v4l_queue_frame (struct file *file,
 681                        int          num)
 682 {
 683         struct zoran_fh *fh = file->private_data;
 684         struct zoran *zr = fh->zr;
 685         unsigned long flags;
 686         int res = 0;
 687
 688         if (!fh->v4l_buffers.allocated) {
 689                 dprintk(1,
 690                         KERN_ERR
 691                         "%s: v4l_queue_frame() - buffers not yet allocated\n",
 692                         ZR_DEVNAME(zr));
 693                 res = -ENOMEM;
 694         }
 695
 696         /* No grabbing outside the buffer range! */
 697         if (num >= fh->v4l_buffers.num_buffers || num < 0) {
 698                 dprintk(1,
 699                         KERN_ERR
 700                         "%s: v4l_queue_frame() - buffer %d is out of range\n",
 701                         ZR_DEVNAME(zr), num);
 702                 res = -EINVAL;
 703         }
 704
 705         spin_lock_irqsave(&zr->spinlock, flags);
 706
 707         if (fh->v4l_buffers.active == ZORAN_FREE) {
 708                 if (zr->v4l_buffers.active == ZORAN_FREE) {
 709                         zr->v4l_buffers = fh->v4l_buffers;
 710                         fh->v4l_buffers.active = ZORAN_ACTIVE;
 711                 } else {
 712                         dprintk(1,
 713                                 KERN_ERR
 714                                 "%s: v4l_queue_frame() - another session is already capturing\n",
 715                                 ZR_DEVNAME(zr));
 716                         res = -EBUSY;
 717                 }
 718         }
 719
 720         /* make sure a grab isn't going on currently with this buffer */
 721         if (!res) {
 722                 switch (zr->v4l_buffers.buffer[num].state) {
 723                 default:
 724                 case BUZ_STATE_PEND:
 725                         if (zr->v4l_buffers.active == ZORAN_FREE) {
 726                                 fh->v4l_buffers.active = ZORAN_FREE;
 727                                 zr->v4l_buffers.allocated = 0;
 728                         }
 729                         res = -EBUSY;   /* what are you doing? */
 730                         break;
 731                 case BUZ_STATE_DONE:
 732                         dprintk(2,
 733                                 KERN_WARNING
 734                                 "%s: v4l_queue_frame() - queueing buffer %d in state DONE!?\n",
 735                                 ZR_DEVNAME(zr), num);
 736                 case BUZ_STATE_USER:
 737                         /* since there is at least one unused buffer there's room for at least
 738                          * one more pend[] entry */
 739                         zr->v4l_pend[zr->v4l_pend_head++ &
 740                                         V4L_MASK_FRAME] = num;
 741                         zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
 742                         zr->v4l_buffers.buffer[num].bs.length =
 743                             fh->v4l_settings.bytesperline *
 744                             zr->v4l_settings.height;
 745                         fh->v4l_buffers.buffer[num] =
 746                             zr->v4l_buffers.buffer[num];
 747                         break;
 748                 }
 749         }
 750
 751         spin_unlock_irqrestore(&zr->spinlock, flags);
 752
 753         if (!res && zr->v4l_buffers.active == ZORAN_FREE)
 754                 zr->v4l_buffers.active = fh->v4l_buffers.active;
 755
 756         return res;
 757 }
 758
 759 static int
 760 v4l_grab (struct file       *file,
 761           struct video_mmap *mp)
 762 {
 763         struct zoran_fh *fh = file->private_data;
 764         struct zoran *zr = fh->zr;
 765         int res = 0, i;
 766
 767         for (i = 0; i < NUM_FORMATS; i++) {
 768                 if (zoran_formats[i].palette == mp->format &&
 769                     zoran_formats[i].flags & ZORAN_FORMAT_CAPTURE &&
 770                     !(zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED))
 771                         break;
 772         }
 773         if (i == NUM_FORMATS || zoran_formats[i].depth == 0) {
 774                 dprintk(1,
 775                         KERN_ERR
 776                         "%s: v4l_grab() - wrong bytes-per-pixel format\n",
 777                         ZR_DEVNAME(zr));
 778                 return -EINVAL;
 779         }
 780
 781         /*
 782          * To minimize the time spent in the IRQ routine, we avoid setting up
 783          * the video front end there.
 784          * If this grab has different parameters from a running streaming capture
 785          * we stop the streaming capture and start it over again.
 786          */
 787         if (zr->v4l_memgrab_active &&
 788             (zr->v4l_settings.width != mp->width ||
 789              zr->v4l_settings.height != mp->height ||
 790              zr->v4l_settings.format->palette != mp->format)) {
 791                 res = wait_grab_pending(zr);
 792                 if (res)
 793                         return res;
 794         }
 795         if ((res = zoran_v4l_set_format(file,
 796                                         mp->width,
 797                                         mp->height,
 798                                         &zoran_formats[i])))
 799                 return res;
 800         zr->v4l_settings = fh->v4l_settings;
 801
 802         /* queue the frame in the pending queue */
 803         if ((res = zoran_v4l_queue_frame(file, mp->frame))) {
 804                 fh->v4l_buffers.active = ZORAN_FREE;
 805                 return res;
 806         }
 807
 808         /* put the 36057 into frame grabbing mode */
 809         if (!res && !zr->v4l_memgrab_active)
 810                 zr36057_set_memgrab(zr, 1);
 811
 812         //dprintk(4, KERN_INFO "%s: Frame grab 3...\n", ZR_DEVNAME(zr));
 813
 814         return res;
 815 }
 816
 817 /*
 818  * Sync on a V4L buffer
 819  */
 820
 821 static int
 822 v4l_sync (struct file *file,
 823           int          frame)
 824 {
 825         struct zoran_fh *fh = file->private_data;
 826         struct zoran *zr = fh->zr;
 827         unsigned long flags;
 828
 829         if (fh->v4l_buffers.active == ZORAN_FREE) {
 830                 dprintk(1,
 831                         KERN_ERR
 832                         "%s: v4l_sync() - no grab active for this session\n",
 833                         ZR_DEVNAME(zr));
 834                 return -EINVAL;
 835         }
 836
 837         /* check passed-in frame number */
 838         if (frame >= fh->v4l_buffers.num_buffers || frame < 0) {
 839                 dprintk(1,
 840                         KERN_ERR "%s: v4l_sync() - frame %d is invalid\n",
 841                         ZR_DEVNAME(zr), frame);
 842                 return -EINVAL;
 843         }
 844
 845         /* Check if is buffer was queued at all */
 846         if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
 847                 dprintk(1,
 848                         KERN_ERR
 849                         "%s: v4l_sync() - attempt to sync on a buffer which was not queued?\n",
 850                         ZR_DEVNAME(zr));
 851                 return -EPROTO;
 852         }
 853
 854         /* wait on this buffer to get ready */
 855         if (!wait_event_interruptible_timeout(zr->v4l_capq,
 856                                 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND),
 857                                 10*HZ))
 858                 return -ETIME;
 859         if (signal_pending(current))
 860                 return -ERESTARTSYS;
 861
 862         /* buffer should now be in BUZ_STATE_DONE */
 863         if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
 864                 dprintk(2,
 865                         KERN_ERR "%s: v4l_sync() - internal state error\n",
 866                         ZR_DEVNAME(zr));
 867
 868         zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
 869         fh->v4l_buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
 870
 871         spin_lock_irqsave(&zr->spinlock, flags);
 872
 873         /* Check if streaming capture has finished */
 874         if (zr->v4l_pend_tail == zr->v4l_pend_head) {
 875                 zr36057_set_memgrab(zr, 0);
 876                 if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
 877                         fh->v4l_buffers.active = zr->v4l_buffers.active =
 878                             ZORAN_FREE;
 879                         zr->v4l_buffers.allocated = 0;
 880                 }
 881         }
 882
 883         spin_unlock_irqrestore(&zr->spinlock, flags);
 884
 885         return 0;
 886 }
 887
 888 /*
 889  *   Queue a MJPEG buffer for capture/playback
 890  */
 891
 892 static int
 893 zoran_jpg_queue_frame (struct file          *file,
 894                        int                   num,
 895                        enum zoran_codec_mode mode)
 896 {
 897         struct zoran_fh *fh = file->private_data;
 898         struct zoran *zr = fh->zr;
 899         unsigned long flags;
 900         int res = 0;
 901
 902         /* Check if buffers are allocated */
 903         if (!fh->jpg_buffers.allocated) {
 904                 dprintk(1,
 905                         KERN_ERR
 906                         "%s: jpg_queue_frame() - buffers not yet allocated\n",
 907                         ZR_DEVNAME(zr));
 908                 return -ENOMEM;
 909         }
 910
 911         /* No grabbing outside the buffer range! */
 912         if (num >= fh->jpg_buffers.num_buffers || num < 0) {
 913                 dprintk(1,
 914                         KERN_ERR
 915                         "%s: jpg_queue_frame() - buffer %d out of range\n",
 916                         ZR_DEVNAME(zr), num);
 917                 return -EINVAL;
 918         }
 919
 920         /* what is the codec mode right now? */
 921         if (zr->codec_mode == BUZ_MODE_IDLE) {
 922                 zr->jpg_settings = fh->jpg_settings;
 923         } else if (zr->codec_mode != mode) {
 924                 /* wrong codec mode active - invalid */
 925                 dprintk(1,
 926                         KERN_ERR
 927                         "%s: jpg_queue_frame() - codec in wrong mode\n",
 928                         ZR_DEVNAME(zr));
 929                 return -EINVAL;
 930         }
 931
 932         if (fh->jpg_buffers.active == ZORAN_FREE) {
 933                 if (zr->jpg_buffers.active == ZORAN_FREE) {
 934                         zr->jpg_buffers = fh->jpg_buffers;
 935                         fh->jpg_buffers.active = ZORAN_ACTIVE;
 936                 } else {
 937                         dprintk(1,
 938                                 KERN_ERR
 939                                 "%s: jpg_queue_frame() - another session is already capturing\n",
 940                                 ZR_DEVNAME(zr));
 941                         res = -EBUSY;
 942                 }
 943         }
 944
 945         if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
 946                 /* Ok load up the jpeg codec */
 947                 zr36057_enable_jpg(zr, mode);
 948         }
 949
 950         spin_lock_irqsave(&zr->spinlock, flags);
 951
 952         if (!res) {
 953                 switch (zr->jpg_buffers.buffer[num].state) {
 954                 case BUZ_STATE_DONE:
 955                         dprintk(2,
 956                                 KERN_WARNING
 957                                 "%s: jpg_queue_frame() - queing frame in BUZ_STATE_DONE state!?\n",
 958                                 ZR_DEVNAME(zr));
 959                 case BUZ_STATE_USER:
 960                         /* since there is at least one unused buffer there's room for at
 961                          *least one more pend[] entry */
 962                         zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] =
 963                             num;
 964                         zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
 965                         fh->jpg_buffers.buffer[num] =
 966                             zr->jpg_buffers.buffer[num];
 967                         zoran_feed_stat_com(zr);
 968                         break;
 969                 default:
 970                 case BUZ_STATE_DMA:
 971                 case BUZ_STATE_PEND:
 972                         if (zr->jpg_buffers.active == ZORAN_FREE) {
 973                                 fh->jpg_buffers.active = ZORAN_FREE;
 974                                 zr->jpg_buffers.allocated = 0;
 975                         }
 976                         res = -EBUSY;   /* what are you doing? */
 977                         break;
 978                 }
 979         }
 980
 981         spin_unlock_irqrestore(&zr->spinlock, flags);
 982
 983         if (!res && zr->jpg_buffers.active == ZORAN_FREE) {
 984                 zr->jpg_buffers.active = fh->jpg_buffers.active;
 985         }
 986
 987         return res;
 988 }
 989
 990 static int
 991 jpg_qbuf (struct file          *file,
 992           int                   frame,
 993           enum zoran_codec_mode mode)
 994 {
 995         struct zoran_fh *fh = file->private_data;
 996         struct zoran *zr = fh->zr;
 997         int res = 0;
 998
 999         /* Does the user want to stop streaming? */
1000         if (frame < 0) {
1001                 if (zr->codec_mode == mode) {
1002                         if (fh->jpg_buffers.active == ZORAN_FREE) {
1003                                 dprintk(1,
1004                                         KERN_ERR
1005                                         "%s: jpg_qbuf(-1) - session not active\n",
1006                                         ZR_DEVNAME(zr));
1007                                 return -EINVAL;
1008                         }
1009                         fh->jpg_buffers.active = zr->jpg_buffers.active =
1010                             ZORAN_FREE;
1011                         zr->jpg_buffers.allocated = 0;
1012                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1013                         return 0;
1014                 } else {
1015                         dprintk(1,
1016                                 KERN_ERR
1017                                 "%s: jpg_qbuf() - stop streaming but not in streaming mode\n",
1018                                 ZR_DEVNAME(zr));
1019                         return -EINVAL;
1020                 }
1021         }
1022
1023         if ((res = zoran_jpg_queue_frame(file, frame, mode)))
1024                 return res;
1025
1026         /* Start the jpeg codec when the first frame is queued  */
1027         if (!res && zr->jpg_que_head == 1)
1028                 jpeg_start(zr);
1029
1030         return res;
1031 }
1032
1033 /*
1034  *   Sync on a MJPEG buffer
1035  */
1036
1037 static int
1038 jpg_sync (struct file       *file,
1039           struct zoran_sync *bs)
1040 {
1041         struct zoran_fh *fh = file->private_data;
1042         struct zoran *zr = fh->zr;
1043         unsigned long flags;
1044         int frame;
1045
1046         if (fh->jpg_buffers.active == ZORAN_FREE) {
1047                 dprintk(1,
1048                         KERN_ERR
1049                         "%s: jpg_sync() - capture is not currently active\n",
1050                         ZR_DEVNAME(zr));
1051                 return -EINVAL;
1052         }
1053         if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
1054             zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
1055                 dprintk(1,
1056                         KERN_ERR
1057                         "%s: jpg_sync() - codec not in streaming mode\n",
1058                         ZR_DEVNAME(zr));
1059                 return -EINVAL;
1060         }
1061         if (!wait_event_interruptible_timeout(zr->jpg_capq,
1062                         (zr->jpg_que_tail != zr->jpg_dma_tail ||
1063                          zr->jpg_dma_tail == zr->jpg_dma_head),
1064                         10*HZ)) {
1065                 int isr;
1066
1067                 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
1068                 udelay(1);
1069                 zr->codec->control(zr->codec, CODEC_G_STATUS,
1070                                            sizeof(isr), &isr);
1071                 dprintk(1,
1072                         KERN_ERR
1073                         "%s: jpg_sync() - timeout: codec isr=0x%02x\n",
1074                         ZR_DEVNAME(zr), isr);
1075
1076                 return -ETIME;
1077
1078         }
1079         if (signal_pending(current))
1080                 return -ERESTARTSYS;
1081
1082         spin_lock_irqsave(&zr->spinlock, flags);
1083
1084         if (zr->jpg_dma_tail != zr->jpg_dma_head)
1085                 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
1086         else
1087                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
1088
1089         /* buffer should now be in BUZ_STATE_DONE */
1090         if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
1091                 dprintk(2,
1092                         KERN_ERR "%s: jpg_sync() - internal state error\n",
1093                         ZR_DEVNAME(zr));
1094
1095         *bs = zr->jpg_buffers.buffer[frame].bs;
1096         bs->frame = frame;
1097         zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
1098         fh->jpg_buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
1099
1100         spin_unlock_irqrestore(&zr->spinlock, flags);
1101
1102         return 0;
1103 }
1104
1105 static void
1106 zoran_open_init_session (struct file *file)
1107 {
1108         int i;
1109         struct zoran_fh *fh = file->private_data;
1110         struct zoran *zr = fh->zr;
1111
1112         /* Per default, map the V4L Buffers */
1113         fh->map_mode = ZORAN_MAP_MODE_RAW;
1114
1115         /* take over the card's current settings */
1116         fh->overlay_settings = zr->overlay_settings;
1117         fh->overlay_settings.is_set = 0;
1118         fh->overlay_settings.format = zr->overlay_settings.format;
1119         fh->overlay_active = ZORAN_FREE;
1120
1121         /* v4l settings */
1122         fh->v4l_settings = zr->v4l_settings;
1123
1124         /* v4l_buffers */
1125         memset(&fh->v4l_buffers, 0, sizeof(struct zoran_v4l_struct));
1126         for (i = 0; i < VIDEO_MAX_FRAME; i++) {
1127                 fh->v4l_buffers.buffer[i].state = BUZ_STATE_USER;       /* nothing going on */
1128                 fh->v4l_buffers.buffer[i].bs.frame = i;
1129         }
1130         fh->v4l_buffers.allocated = 0;
1131         fh->v4l_buffers.ready_to_be_freed = 0;
1132         fh->v4l_buffers.active = ZORAN_FREE;
1133         fh->v4l_buffers.buffer_size = v4l_bufsize;
1134         fh->v4l_buffers.num_buffers = v4l_nbufs;
1135
1136         /* jpg settings */
1137         fh->jpg_settings = zr->jpg_settings;
1138
1139         /* jpg_buffers */
1140         memset(&fh->jpg_buffers, 0, sizeof(struct zoran_jpg_struct));
1141         for (i = 0; i < BUZ_MAX_FRAME; i++) {
1142                 fh->jpg_buffers.buffer[i].state = BUZ_STATE_USER;       /* nothing going on */
1143                 fh->jpg_buffers.buffer[i].bs.frame = i;
1144         }
1145         fh->jpg_buffers.need_contiguous = zr->jpg_buffers.need_contiguous;
1146         fh->jpg_buffers.allocated = 0;
1147         fh->jpg_buffers.ready_to_be_freed = 0;
1148         fh->jpg_buffers.active = ZORAN_FREE;
1149         fh->jpg_buffers.buffer_size = jpg_bufsize;
1150         fh->jpg_buffers.num_buffers = jpg_nbufs;
1151 }
1152
1153 static void
1154 zoran_close_end_session (struct file *file)
1155 {
1156         struct zoran_fh *fh = file->private_data;
1157         struct zoran *zr = fh->zr;
1158
1159         /* overlay */
1160         if (fh->overlay_active != ZORAN_FREE) {
1161                 fh->overlay_active = zr->overlay_active = ZORAN_FREE;
1162                 zr->v4l_overlay_active = 0;
1163                 if (!zr->v4l_memgrab_active)
1164                         zr36057_overlay(zr, 0);
1165                 zr->overlay_mask = NULL;
1166         }
1167
1168         /* v4l capture */
1169         if (fh->v4l_buffers.active != ZORAN_FREE) {
1170                 unsigned long flags;
1171
1172                 spin_lock_irqsave(&zr->spinlock, flags);
1173                 zr36057_set_memgrab(zr, 0);
1174                 zr->v4l_buffers.allocated = 0;
1175                 zr->v4l_buffers.active = fh->v4l_buffers.active =
1176                     ZORAN_FREE;
1177                 spin_unlock_irqrestore(&zr->spinlock, flags);
1178         }
1179
1180         /* v4l buffers */
1181         if (fh->v4l_buffers.allocated ||
1182             fh->v4l_buffers.ready_to_be_freed) {
1183                 v4l_fbuffer_free(file);
1184         }
1185
1186         /* jpg capture */
1187         if (fh->jpg_buffers.active != ZORAN_FREE) {
1188                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1189                 zr->jpg_buffers.allocated = 0;
1190                 zr->jpg_buffers.active = fh->jpg_buffers.active =
1191                     ZORAN_FREE;
1192         }
1193
1194         /* jpg buffers */
1195         if (fh->jpg_buffers.allocated ||
1196             fh->jpg_buffers.ready_to_be_freed) {
1197                 jpg_fbuffer_free(file);
1198         }
1199 }
1200
1201 /*
1202  *   Open a zoran card. Right now the flags stuff is just playing
1203  */
1204
1205 static int
1206 zoran_open (struct inode *inode,
1207             struct file  *file)
1208 {
1209         unsigned int minor = iminor(inode);
1210         struct zoran *zr = NULL;
1211         struct zoran_fh *fh;
1212         int i, res, first_open = 0, have_module_locks = 0;
1213
1214         /* find the device */
1215         for (i = 0; i < zoran_num; i++) {
1216                 if (zoran[i].video_dev->minor == minor) {
1217                         zr = &zoran[i];
1218                         break;
1219                 }
1220         }
1221
1222         if (!zr) {
1223                 dprintk(1, KERN_ERR "%s: device not found!\n", ZORAN_NAME);
1224                 res = -ENODEV;
1225                 goto open_unlock_and_return;
1226         }
1227
1228         /* see fs/device.c - the kernel already locks during open(),
1229          * so locking ourselves only causes deadlocks */
1230         /*mutex_lock(&zr->resource_lock);*/
1231
1232         if (!zr->decoder) {
1233                 dprintk(1,
1234                         KERN_ERR "%s: no TV decoder loaded for device!\n",
1235                         ZR_DEVNAME(zr));
1236                 res = -EIO;
1237                 goto open_unlock_and_return;
1238         }
1239
1240         /* try to grab a module lock */
1241         if (!try_module_get(THIS_MODULE)) {
1242                 dprintk(1,
1243                         KERN_ERR
1244                         "%s: failed to acquire my own lock! PANIC!\n",
1245                         ZR_DEVNAME(zr));
1246                 res = -ENODEV;
1247                 goto open_unlock_and_return;
1248         }
1249         if (!try_module_get(zr->decoder->driver->driver.owner)) {
1250                 dprintk(1,
1251                         KERN_ERR
1252                         "%s: failed to grab ownership of i2c decoder\n",
1253                         ZR_DEVNAME(zr));
1254                 res = -EIO;
1255                 module_put(THIS_MODULE);
1256                 goto open_unlock_and_return;
1257         }
1258         if (zr->encoder &&
1259             !try_module_get(zr->encoder->driver->driver.owner)) {
1260                 dprintk(1,
1261                         KERN_ERR
1262                         "%s: failed to grab ownership of i2c encoder\n",
1263                         ZR_DEVNAME(zr));
1264                 res = -EIO;
1265                 module_put(zr->decoder->driver->driver.owner);
1266                 module_put(THIS_MODULE);
1267                 goto open_unlock_and_return;
1268         }
1269
1270         have_module_locks = 1;
1271
1272         if (zr->user >= 2048) {
1273                 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
1274                         ZR_DEVNAME(zr), zr->user);
1275                 res = -EBUSY;
1276                 goto open_unlock_and_return;
1277         }
1278
1279         dprintk(1, KERN_INFO "%s: zoran_open(%s, pid=[%d]), users(-)=%d\n",
1280                 ZR_DEVNAME(zr), current->comm, task_pid_nr(current), zr->user);
1281
1282         /* now, create the open()-specific file_ops struct */
1283         fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
1284         if (!fh) {
1285                 dprintk(1,
1286                         KERN_ERR
1287                         "%s: zoran_open() - allocation of zoran_fh failed\n",
1288                         ZR_DEVNAME(zr));
1289                 res = -ENOMEM;
1290                 goto open_unlock_and_return;
1291         }
1292         /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
1293          * on norm-change! */
1294         fh->overlay_mask =
1295             kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
1296         if (!fh->overlay_mask) {
1297                 dprintk(1,
1298                         KERN_ERR
1299                         "%s: zoran_open() - allocation of overlay_mask failed\n",
1300                         ZR_DEVNAME(zr));
1301                 kfree(fh);
1302                 res = -ENOMEM;
1303                 goto open_unlock_and_return;
1304         }
1305
1306         if (zr->user++ == 0)
1307                 first_open = 1;
1308
1309         /*mutex_unlock(&zr->resource_lock);*/
1310
1311         /* default setup - TODO: look at flags */
1312         if (first_open) {       /* First device open */
1313                 zr36057_restart(zr);
1314                 zoran_open_init_params(zr);
1315                 zoran_init_hardware(zr);
1316
1317                 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
1318         }
1319
1320         /* set file_ops stuff */
1321         file->private_data = fh;
1322         fh->zr = zr;
1323         zoran_open_init_session(file);
1324
1325         return 0;
1326
1327 open_unlock_and_return:
1328         /* if we grabbed locks, release them accordingly */
1329         if (have_module_locks) {
1330                 module_put(zr->decoder->driver->driver.owner);
1331                 if (zr->encoder) {
1332                         module_put(zr->encoder->driver->driver.owner);
1333                 }
1334                 module_put(THIS_MODULE);
1335         }
1336
1337         /* if there's no device found, we didn't obtain the lock either */
1338         if (zr) {
1339                 /*mutex_unlock(&zr->resource_lock);*/
1340         }
1341
1342         return res;
1343 }
1344
1345 static int
1346 zoran_close (struct inode *inode,
1347              struct file  *file)
1348 {
1349         struct zoran_fh *fh = file->private_data;
1350         struct zoran *zr = fh->zr;
1351
1352         dprintk(1, KERN_INFO "%s: zoran_close(%s, pid=[%d]), users(+)=%d\n",
1353                 ZR_DEVNAME(zr), current->comm, task_pid_nr(current), zr->user);
1354
1355         /* kernel locks (fs/device.c), so don't do that ourselves
1356          * (prevents deadlocks) */
1357         /*mutex_lock(&zr->resource_lock);*/
1358
1359         zoran_close_end_session(file);
1360
1361         if (zr->user-- == 1) {  /* Last process */
1362                 /* Clean up JPEG process */
1363                 wake_up_interruptible(&zr->jpg_capq);
1364                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1365                 zr->jpg_buffers.allocated = 0;
1366                 zr->jpg_buffers.active = ZORAN_FREE;
1367
1368                 /* disable interrupts */
1369                 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1370
1371                 if (zr36067_debug > 1)
1372                         print_interrupts(zr);
1373
1374                 /* Overlay off */
1375                 zr->v4l_overlay_active = 0;
1376                 zr36057_overlay(zr, 0);
1377                 zr->overlay_mask = NULL;
1378
1379                 /* capture off */
1380                 wake_up_interruptible(&zr->v4l_capq);
1381                 zr36057_set_memgrab(zr, 0);
1382                 zr->v4l_buffers.allocated = 0;
1383                 zr->v4l_buffers.active = ZORAN_FREE;
1384                 zoran_set_pci_master(zr, 0);
1385
1386                 if (!pass_through) {    /* Switch to color bar */
1387                         int zero = 0, two = 2;
1388                         decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero);
1389                         encoder_command(zr, ENCODER_SET_INPUT, &two);
1390                 }
1391         }
1392
1393         file->private_data = NULL;
1394         kfree(fh->overlay_mask);
1395         kfree(fh);
1396
1397         /* release locks on the i2c modules */
1398         module_put(zr->decoder->driver->driver.owner);
1399         if (zr->encoder) {
1400                  module_put(zr->encoder->driver->driver.owner);
1401         }
1402         module_put(THIS_MODULE);
1403
1404         /*mutex_unlock(&zr->resource_lock);*/
1405
1406         dprintk(4, KERN_INFO "%s: zoran_close() done\n", ZR_DEVNAME(zr));
1407
1408         return 0;
1409 }
1410
1411
1412 static ssize_t
1413 zoran_read (struct file *file,
1414             char        __user *data,
1415             size_t       count,
1416             loff_t      *ppos)
1417 {
1418         /* we simply don't support read() (yet)... */
1419
1420         return -EINVAL;
1421 }
1422
1423 static ssize_t
1424 zoran_write (struct file *file,
1425              const char  __user *data,
1426              size_t       count,
1427              loff_t      *ppos)
1428 {
1429         /* ...and the same goes for write() */
1430
1431         return -EINVAL;
1432 }
1433
1434 static int
1435 setup_fbuffer (struct file               *file,
1436                void                      *base,
1437                const struct zoran_format *fmt,
1438                int                        width,
1439                int                        height,
1440                int                        bytesperline)
1441 {
1442         struct zoran_fh *fh = file->private_data;
1443         struct zoran *zr = fh->zr;
1444
1445         /* (Ronald) v4l/v4l2 guidelines */
1446         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1447                 return -EPERM;
1448
1449         /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
1450            ALi Magik (that needs very low latency while the card needs a
1451            higher value always) */
1452
1453         if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
1454                 return -ENXIO;
1455
1456         /* we need a bytesperline value, even if not given */
1457         if (!bytesperline)
1458                 bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
1459
1460 #if 0
1461         if (zr->overlay_active) {
1462                 /* dzjee... stupid users... don't even bother to turn off
1463                  * overlay before changing the memory location...
1464                  * normally, we would return errors here. However, one of
1465                  * the tools that does this is... xawtv! and since xawtv
1466                  * is used by +/- 99% of the users, we'd rather be user-
1467                  * friendly and silently do as if nothing went wrong */
1468                 dprintk(3,
1469                         KERN_ERR
1470                         "%s: setup_fbuffer() - forced overlay turnoff because framebuffer changed\n",
1471                         ZR_DEVNAME(zr));
1472                 zr36057_overlay(zr, 0);
1473         }
1474 #endif
1475
1476         if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
1477                 dprintk(1,
1478                         KERN_ERR
1479                         "%s: setup_fbuffer() - no valid overlay format given\n",
1480                         ZR_DEVNAME(zr));
1481                 return -EINVAL;
1482         }
1483         if (height <= 0 || width <= 0 || bytesperline <= 0) {
1484                 dprintk(1,
1485                         KERN_ERR
1486                         "%s: setup_fbuffer() - invalid height/width/bpl value (%d|%d|%d)\n",
1487                         ZR_DEVNAME(zr), width, height, bytesperline);
1488                 return -EINVAL;
1489         }
1490         if (bytesperline & 3) {
1491                 dprintk(1,
1492                         KERN_ERR
1493                         "%s: setup_fbuffer() - bytesperline (%d) must be 4-byte aligned\n",
1494                         ZR_DEVNAME(zr), bytesperline);
1495                 return -EINVAL;
1496         }
1497
1498         zr->buffer.base = (void *) ((unsigned long) base & ~3);
1499         zr->buffer.height = height;
1500         zr->buffer.width = width;
1501         zr->buffer.depth = fmt->depth;
1502         zr->overlay_settings.format = fmt;
1503         zr->buffer.bytesperline = bytesperline;
1504
1505         /* The user should set new window parameters */
1506         zr->overlay_settings.is_set = 0;
1507
1508         return 0;
1509 }
1510
1511
1512 static int
1513 setup_window (struct file       *file,
1514               int                x,
1515               int                y,
1516               int                width,
1517               int                height,
1518               struct video_clip __user *clips,
1519               int                clipcount,
1520               void              __user *bitmap)
1521 {
1522         struct zoran_fh *fh = file->private_data;
1523         struct zoran *zr = fh->zr;
1524         struct video_clip *vcp = NULL;
1525         int on, end;
1526
1527
1528         if (!zr->buffer.base) {
1529                 dprintk(1,
1530                         KERN_ERR
1531                         "%s: setup_window() - frame buffer has to be set first\n",
1532                         ZR_DEVNAME(zr));
1533                 return -EINVAL;
1534         }
1535
1536         if (!fh->overlay_settings.format) {
1537                 dprintk(1,
1538                         KERN_ERR
1539                         "%s: setup_window() - no overlay format set\n",
1540                         ZR_DEVNAME(zr));
1541                 return -EINVAL;
1542         }
1543
1544         /*
1545          * The video front end needs 4-byte alinged line sizes, we correct that
1546          * silently here if necessary
1547          */
1548         if (zr->buffer.depth == 15 || zr->buffer.depth == 16) {
1549                 end = (x + width) & ~1; /* round down */
1550                 x = (x + 1) & ~1;       /* round up */
1551                 width = end - x;
1552         }
1553
1554         if (zr->buffer.depth == 24) {
1555                 end = (x + width) & ~3; /* round down */
1556                 x = (x + 3) & ~3;       /* round up */
1557                 width = end - x;
1558         }
1559
1560         if (width > BUZ_MAX_WIDTH)
1561                 width = BUZ_MAX_WIDTH;
1562         if (height > BUZ_MAX_HEIGHT)
1563                 height = BUZ_MAX_HEIGHT;
1564
1565         /* Check for vaild parameters */
1566         if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
1567             width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
1568                 dprintk(1,
1569                         KERN_ERR
1570                         "%s: setup_window() - width = %d or height = %d invalid\n",
1571                         ZR_DEVNAME(zr), width, height);
1572                 return -EINVAL;
1573         }
1574
1575         fh->overlay_settings.x = x;
1576         fh->overlay_settings.y = y;
1577         fh->overlay_settings.width = width;
1578         fh->overlay_settings.height = height;
1579         fh->overlay_settings.clipcount = clipcount;
1580
1581         /*
1582          * If an overlay is running, we have to switch it off
1583          * and switch it on again in order to get the new settings in effect.
1584          *
1585          * We also want to avoid that the overlay mask is written
1586          * when an overlay is running.
1587          */
1588
1589         on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
1590             zr->overlay_active != ZORAN_FREE &&
1591             fh->overlay_active != ZORAN_FREE;
1592         if (on)
1593                 zr36057_overlay(zr, 0);
1594
1595         /*
1596          *   Write the overlay mask if clips are wanted.
1597          *   We prefer a bitmap.
1598          */
1599         if (bitmap) {
1600                 /* fake value - it just means we want clips */
1601                 fh->overlay_settings.clipcount = 1;
1602
1603                 if (copy_from_user(fh->overlay_mask, bitmap,
1604                                    (width * height + 7) / 8)) {
1605                         return -EFAULT;
1606                 }
1607         } else if (clipcount > 0) {
1608                 /* write our own bitmap from the clips */
1609                 vcp = vmalloc(sizeof(struct video_clip) * (clipcount + 4));
1610                 if (vcp == NULL) {
1611                         dprintk(1,
1612                                 KERN_ERR
1613                                 "%s: setup_window() - Alloc of clip mask failed\n",
1614                                 ZR_DEVNAME(zr));
1615                         return -ENOMEM;
1616                 }
1617                 if (copy_from_user
1618                     (vcp, clips, sizeof(struct video_clip) * clipcount)) {
1619                         vfree(vcp);
1620                         return -EFAULT;
1621                 }
1622                 write_overlay_mask(file, vcp, clipcount);
1623                 vfree(vcp);
1624         }
1625
1626         fh->overlay_settings.is_set = 1;
1627         if (fh->overlay_active != ZORAN_FREE &&
1628             zr->overlay_active != ZORAN_FREE)
1629                 zr->overlay_settings = fh->overlay_settings;
1630
1631         if (on)
1632                 zr36057_overlay(zr, 1);
1633
1634         /* Make sure the changes come into effect */
1635         return wait_grab_pending(zr);
1636 }
1637
1638 static int
1639 setup_overlay (struct file *file,
1640                int          on)
1641 {
1642         struct zoran_fh *fh = file->private_data;
1643         struct zoran *zr = fh->zr;
1644
1645         /* If there is nothing to do, return immediatly */
1646         if ((on && fh->overlay_active != ZORAN_FREE) ||
1647             (!on && fh->overlay_active == ZORAN_FREE))
1648                 return 0;
1649
1650         /* check whether we're touching someone else's overlay */
1651         if (on && zr->overlay_active != ZORAN_FREE &&
1652             fh->overlay_active == ZORAN_FREE) {
1653                 dprintk(1,
1654                         KERN_ERR
1655                         "%s: setup_overlay() - overlay is already active for another session\n",
1656                         ZR_DEVNAME(zr));
1657                 return -EBUSY;
1658         }
1659         if (!on && zr->overlay_active != ZORAN_FREE &&
1660             fh->overlay_active == ZORAN_FREE) {
1661                 dprintk(1,
1662                         KERN_ERR
1663                         "%s: setup_overlay() - you cannot cancel someone else's session\n",
1664                         ZR_DEVNAME(zr));
1665                 return -EPERM;
1666         }
1667
1668         if (on == 0) {
1669                 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1670                 zr->v4l_overlay_active = 0;
1671                 /* When a grab is running, the video simply
1672                  * won't be switched on any more */
1673                 if (!zr->v4l_memgrab_active)
1674                         zr36057_overlay(zr, 0);
1675                 zr->overlay_mask = NULL;
1676         } else {
1677                 if (!zr->buffer.base || !fh->overlay_settings.is_set) {
1678                         dprintk(1,
1679                                 KERN_ERR
1680                                 "%s: setup_overlay() - buffer or window not set\n",
1681                                 ZR_DEVNAME(zr));
1682                         return -EINVAL;
1683                 }
1684                 if (!fh->overlay_settings.format) {
1685                         dprintk(1,
1686                                 KERN_ERR
1687                                 "%s: setup_overlay() - no overlay format set\n",
1688                                 ZR_DEVNAME(zr));
1689                         return -EINVAL;
1690                 }
1691                 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1692                 zr->v4l_overlay_active = 1;
1693                 zr->overlay_mask = fh->overlay_mask;
1694                 zr->overlay_settings = fh->overlay_settings;
1695                 if (!zr->v4l_memgrab_active)
1696                         zr36057_overlay(zr, 1);
1697                 /* When a grab is running, the video will be
1698                  * switched on when grab is finished */
1699         }
1700
1701         /* Make sure the changes come into effect */
1702         return wait_grab_pending(zr);
1703 }
1704
1705         /* get the status of a buffer in the clients buffer queue */
1706 static int
1707 zoran_v4l2_buffer_status (struct file        *file,
1708                           struct v4l2_buffer *buf,
1709                           int                 num)
1710 {
1711         struct zoran_fh *fh = file->private_data;
1712         struct zoran *zr = fh->zr;
1713
1714         buf->flags = V4L2_BUF_FLAG_MAPPED;
1715
1716         switch (fh->map_mode) {
1717         case ZORAN_MAP_MODE_RAW:
1718
1719                 /* check range */
1720                 if (num < 0 || num >= fh->v4l_buffers.num_buffers ||
1721                     !fh->v4l_buffers.allocated) {
1722                         dprintk(1,
1723                                 KERN_ERR
1724                                 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1725                                 ZR_DEVNAME(zr));
1726                         return -EINVAL;
1727                 }
1728
1729                 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1730                 buf->length = fh->v4l_buffers.buffer_size;
1731
1732                 /* get buffer */
1733                 buf->bytesused = fh->v4l_buffers.buffer[num].bs.length;
1734                 if (fh->v4l_buffers.buffer[num].state == BUZ_STATE_DONE ||
1735                     fh->v4l_buffers.buffer[num].state == BUZ_STATE_USER) {
1736                         buf->sequence = fh->v4l_buffers.buffer[num].bs.seq;
1737                         buf->flags |= V4L2_BUF_FLAG_DONE;
1738                         buf->timestamp =
1739                             fh->v4l_buffers.buffer[num].bs.timestamp;
1740                 } else {
1741                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1742                 }
1743
1744                 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1745                         buf->field = V4L2_FIELD_TOP;
1746                 else
1747                         buf->field = V4L2_FIELD_INTERLACED;
1748
1749                 break;
1750
1751         case ZORAN_MAP_MODE_JPG_REC:
1752         case ZORAN_MAP_MODE_JPG_PLAY:
1753
1754                 /* check range */
1755                 if (num < 0 || num >= fh->jpg_buffers.num_buffers ||
1756                     !fh->jpg_buffers.allocated) {
1757                         dprintk(1,
1758                                 KERN_ERR
1759                                 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1760                                 ZR_DEVNAME(zr));
1761                         return -EINVAL;
1762                 }
1763
1764                 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1765                               V4L2_BUF_TYPE_VIDEO_CAPTURE :
1766                               V4L2_BUF_TYPE_VIDEO_OUTPUT;
1767                 buf->length = fh->jpg_buffers.buffer_size;
1768
1769                 /* these variables are only written after frame has been captured */
1770                 if (fh->jpg_buffers.buffer[num].state == BUZ_STATE_DONE ||
1771                     fh->jpg_buffers.buffer[num].state == BUZ_STATE_USER) {
1772                         buf->sequence = fh->jpg_buffers.buffer[num].bs.seq;
1773                         buf->timestamp =
1774                             fh->jpg_buffers.buffer[num].bs.timestamp;
1775                         buf->bytesused =
1776                             fh->jpg_buffers.buffer[num].bs.length;
1777                         buf->flags |= V4L2_BUF_FLAG_DONE;
1778                 } else {
1779                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1780                 }
1781
1782                 /* which fields are these? */
1783                 if (fh->jpg_settings.TmpDcm != 1)
1784                         buf->field =
1785                             fh->jpg_settings.
1786                             odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1787                 else
1788                         buf->field =
1789                             fh->jpg_settings.
1790                             odd_even ? V4L2_FIELD_SEQ_TB :
1791                             V4L2_FIELD_SEQ_BT;
1792
1793                 break;
1794
1795         default:
1796
1797                 dprintk(5,
1798                         KERN_ERR
1799                         "%s: v4l2_buffer_status() - invalid buffer type|map_mode (%d|%d)\n",
1800                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
1801                 return -EINVAL;
1802         }
1803
1804         buf->memory = V4L2_MEMORY_MMAP;
1805         buf->index = num;
1806         buf->m.offset = buf->length * num;
1807
1808         return 0;
1809 }
1810
1811 static int
1812 zoran_set_norm (struct zoran *zr,
1813                 int           norm) /* VIDEO_MODE_* */
1814 {
1815         int norm_encoder, on;
1816
1817         if (zr->v4l_buffers.active != ZORAN_FREE ||
1818             zr->jpg_buffers.active != ZORAN_FREE) {
1819                 dprintk(1,
1820                         KERN_WARNING
1821                         "%s: set_norm() called while in playback/capture mode\n",
1822                         ZR_DEVNAME(zr));
1823                 return -EBUSY;
1824         }
1825
1826         if (lock_norm && norm != zr->norm) {
1827                 if (lock_norm > 1) {
1828                         dprintk(1,
1829                                 KERN_WARNING
1830                                 "%s: set_norm() - TV standard is locked, can not switch norm\n",
1831                                 ZR_DEVNAME(zr));
1832                         return -EPERM;
1833                 } else {
1834                         dprintk(1,
1835                                 KERN_WARNING
1836                                 "%s: set_norm() - TV standard is locked, norm was not changed\n",
1837                                 ZR_DEVNAME(zr));
1838                         norm = zr->norm;
1839                 }
1840         }
1841
1842         if (norm != VIDEO_MODE_AUTO &&
1843             (norm < 0 || norm >= zr->card.norms ||
1844              !zr->card.tvn[norm])) {
1845                 dprintk(1,
1846                         KERN_ERR "%s: set_norm() - unsupported norm %d\n",
1847                         ZR_DEVNAME(zr), norm);
1848                 return -EINVAL;
1849         }
1850
1851         if (norm == VIDEO_MODE_AUTO) {
1852                 int status;
1853
1854                 /* if we have autodetect, ... */
1855                 struct video_decoder_capability caps;
1856                 decoder_command(zr, DECODER_GET_CAPABILITIES, &caps);
1857                 if (!(caps.flags & VIDEO_DECODER_AUTO)) {
1858                         dprintk(1, KERN_ERR "%s: norm=auto unsupported\n",
1859                                 ZR_DEVNAME(zr));
1860                         return -EINVAL;
1861                 }
1862
1863                 decoder_command(zr, DECODER_SET_NORM, &norm);
1864
1865                 /* let changes come into effect */
1866                 ssleep(2);
1867
1868                 decoder_command(zr, DECODER_GET_STATUS, &status);
1869                 if (!(status & DECODER_STATUS_GOOD)) {
1870                         dprintk(1,
1871                                 KERN_ERR
1872                                 "%s: set_norm() - no norm detected\n",
1873                                 ZR_DEVNAME(zr));
1874                         /* reset norm */
1875                         decoder_command(zr, DECODER_SET_NORM, &zr->norm);
1876                         return -EIO;
1877                 }
1878
1879                 if (status & DECODER_STATUS_NTSC)
1880                         norm = VIDEO_MODE_NTSC;
1881                 else if (status & DECODER_STATUS_SECAM)
1882                         norm = VIDEO_MODE_SECAM;
1883                 else
1884                         norm = VIDEO_MODE_PAL;
1885         }
1886         zr->timing = zr->card.tvn[norm];
1887         norm_encoder = norm;
1888
1889         /* We switch overlay off and on since a change in the
1890          * norm needs different VFE settings */
1891         on = zr->overlay_active && !zr->v4l_memgrab_active;
1892         if (on)
1893                 zr36057_overlay(zr, 0);
1894
1895         decoder_command(zr, DECODER_SET_NORM, &norm);
1896         encoder_command(zr, ENCODER_SET_NORM, &norm_encoder);
1897
1898         if (on)
1899                 zr36057_overlay(zr, 1);
1900
1901         /* Make sure the changes come into effect */
1902         zr->norm = norm;
1903
1904         return 0;
1905 }
1906
1907 static int
1908 zoran_set_input (struct zoran *zr,
1909                  int           input)
1910 {
1911         int realinput;
1912
1913         if (input == zr->input) {
1914                 return 0;
1915         }
1916
1917         if (zr->v4l_buffers.active != ZORAN_FREE ||
1918             zr->jpg_buffers.active != ZORAN_FREE) {
1919                 dprintk(1,
1920                         KERN_WARNING
1921                         "%s: set_input() called while in playback/capture mode\n",
1922                         ZR_DEVNAME(zr));
1923                 return -EBUSY;
1924         }
1925
1926         if (input < 0 || input >= zr->card.inputs) {
1927                 dprintk(1,
1928                         KERN_ERR
1929                         "%s: set_input() - unnsupported input %d\n",
1930                         ZR_DEVNAME(zr), input);
1931                 return -EINVAL;
1932         }
1933
1934         realinput = zr->card.input[input].muxsel;
1935         zr->input = input;
1936
1937         decoder_command(zr, DECODER_SET_INPUT, &realinput);
1938
1939         return 0;
1940 }
1941
1942 /*
1943  *   ioctl routine
1944  */
1945
1946 static int
1947 zoran_do_ioctl (struct inode *inode,
1948                 struct file  *file,
1949                 unsigned int  cmd,
1950                 void         *arg)
1951 {
1952         struct zoran_fh *fh = file->private_data;
1953         struct zoran *zr = fh->zr;
1954         /* CAREFUL: used in multiple places here */
1955         struct zoran_jpg_settings settings;
1956
1957         /* we might have older buffers lying around... We don't want
1958          * to wait, but we do want to try cleaning them up ASAP. So
1959          * we try to obtain the lock and free them. If that fails, we
1960          * don't do anything and wait for the next turn. In the end,
1961          * zoran_close() or a new allocation will still free them...
1962          * This is just a 'the sooner the better' extra 'feature'
1963          *
1964          * We don't free the buffers right on munmap() because that
1965          * causes oopses (kfree() inside munmap() oopses for no
1966          * apparent reason - it's also not reproduceable in any way,
1967          * but moving the free code outside the munmap() handler fixes
1968          * all this... If someone knows why, please explain me (Ronald)
1969          */
1970         if (mutex_trylock(&zr->resource_lock)) {
1971                 /* we obtained it! Let's try to free some things */
1972                 if (fh->jpg_buffers.ready_to_be_freed)
1973                         jpg_fbuffer_free(file);
1974                 if (fh->v4l_buffers.ready_to_be_freed)
1975                         v4l_fbuffer_free(file);
1976
1977                 mutex_unlock(&zr->resource_lock);
1978         }
1979
1980         switch (cmd) {
1981
1982         case VIDIOCGCAP:
1983         {
1984                 struct video_capability *vcap = arg;
1985
1986                 dprintk(3, KERN_DEBUG "%s: VIDIOCGCAP\n", ZR_DEVNAME(zr));
1987
1988                 memset(vcap, 0, sizeof(struct video_capability));
1989                 strncpy(vcap->name, ZR_DEVNAME(zr), sizeof(vcap->name)-1);
1990                 vcap->type = ZORAN_VID_TYPE;
1991
1992                 vcap->channels = zr->card.inputs;
1993                 vcap->audios = 0;
1994                 mutex_lock(&zr->resource_lock);
1995                 vcap->maxwidth = BUZ_MAX_WIDTH;
1996                 vcap->maxheight = BUZ_MAX_HEIGHT;
1997                 vcap->minwidth = BUZ_MIN_WIDTH;
1998                 vcap->minheight = BUZ_MIN_HEIGHT;
1999                 mutex_unlock(&zr->resource_lock);
2000
2001                 return 0;
2002         }
2003                 break;
2004
2005         case VIDIOCGCHAN:
2006         {
2007                 struct video_channel *vchan = arg;
2008                 int channel = vchan->channel;
2009
2010                 dprintk(3, KERN_DEBUG "%s: VIDIOCGCHAN - channel=%d\n",
2011                         ZR_DEVNAME(zr), vchan->channel);
2012
2013                 memset(vchan, 0, sizeof(struct video_channel));
2014                 if (channel > zr->card.inputs || channel < 0) {
2015                         dprintk(1,
2016                                 KERN_ERR
2017                                 "%s: VIDIOCGCHAN on not existing channel %d\n",
2018                                 ZR_DEVNAME(zr), channel);
2019                         return -EINVAL;
2020                 }
2021
2022                 strcpy(vchan->name, zr->card.input[channel].name);
2023
2024                 vchan->tuners = 0;
2025                 vchan->flags = 0;
2026                 vchan->type = VIDEO_TYPE_CAMERA;
2027                 mutex_lock(&zr->resource_lock);
2028                 vchan->norm = zr->norm;
2029                 mutex_unlock(&zr->resource_lock);
2030                 vchan->channel = channel;
2031
2032                 return 0;
2033         }
2034                 break;
2035
2036                 /* RJ: the documentation at http://roadrunner.swansea.linux.org.uk/v4lapi.shtml says:
2037                  *
2038                  * * "The VIDIOCSCHAN ioctl takes an integer argument and switches the capture to this input."
2039                  * *                                 ^^^^^^^
2040                  * * The famos BTTV driver has it implemented with a struct video_channel argument
2041                  * * and we follow it for compatibility reasons
2042                  * *
2043                  * * BTW: this is the only way the user can set the norm!
2044                  */
2045
2046         case VIDIOCSCHAN:
2047         {
2048                 struct video_channel *vchan = arg;
2049                 int res;
2050
2051                 dprintk(3,
2052                         KERN_DEBUG
2053                         "%s: VIDIOCSCHAN - channel=%d, norm=%d\n",
2054                         ZR_DEVNAME(zr), vchan->channel, vchan->norm);
2055
2056                 mutex_lock(&zr->resource_lock);
2057                 if ((res = zoran_set_input(zr, vchan->channel)))
2058                         goto schan_unlock_and_return;
2059                 if ((res = zoran_set_norm(zr, vchan->norm)))
2060                         goto schan_unlock_and_return;
2061
2062                 /* Make sure the changes come into effect */
2063                 res = wait_grab_pending(zr);
2064         schan_unlock_and_return:
2065                 mutex_unlock(&zr->resource_lock);
2066                 return res;
2067         }
2068                 break;
2069
2070         case VIDIOCGPICT:
2071         {
2072                 struct video_picture *vpict = arg;
2073
2074                 dprintk(3, KERN_DEBUG "%s: VIDIOCGPICT\n", ZR_DEVNAME(zr));
2075
2076                 memset(vpict, 0, sizeof(struct video_picture));
2077                 mutex_lock(&zr->resource_lock);
2078                 vpict->hue = zr->hue;
2079                 vpict->brightness = zr->brightness;
2080                 vpict->contrast = zr->contrast;
2081                 vpict->colour = zr->saturation;
2082                 if (fh->overlay_settings.format) {
2083                         vpict->depth = fh->overlay_settings.format->depth;
2084                         vpict->palette = fh->overlay_settings.format->palette;
2085                 } else {
2086                         vpict->depth = 0;
2087                 }
2088                 mutex_unlock(&zr->resource_lock);
2089
2090                 return 0;
2091         }
2092                 break;
2093
2094         case VIDIOCSPICT:
2095         {
2096                 struct video_picture *vpict = arg;
2097                 int i;
2098
2099                 dprintk(3,
2100                         KERN_DEBUG
2101                         "%s: VIDIOCSPICT - bri=%d, hue=%d, col=%d, con=%d, dep=%d, pal=%d\n",
2102                         ZR_DEVNAME(zr), vpict->brightness, vpict->hue,
2103                         vpict->colour, vpict->contrast, vpict->depth,
2104                         vpict->palette);
2105
2106                 for (i = 0; i < NUM_FORMATS; i++) {
2107                         const struct zoran_format *fmt = &zoran_formats[i];
2108
2109                         if (fmt->palette != -1 &&
2110                             fmt->flags & ZORAN_FORMAT_OVERLAY &&
2111                             fmt->palette == vpict->palette &&
2112                             fmt->depth == vpict->depth)
2113                                 break;
2114                 }
2115                 if (i == NUM_FORMATS) {
2116                         dprintk(1,
2117                                 KERN_ERR
2118                                 "%s: VIDIOCSPICT - Invalid palette %d\n",
2119                                 ZR_DEVNAME(zr), vpict->palette);
2120                         return -EINVAL;
2121                 }
2122
2123                 mutex_lock(&zr->resource_lock);
2124
2125                 decoder_command(zr, DECODER_SET_PICTURE, vpict);
2126
2127                 zr->hue = vpict->hue;
2128                 zr->contrast = vpict->contrast;
2129                 zr->saturation = vpict->colour;
2130                 zr->brightness = vpict->brightness;
2131
2132                 fh->overlay_settings.format = &zoran_formats[i];
2133
2134                 mutex_unlock(&zr->resource_lock);
2135
2136                 return 0;
2137         }
2138                 break;
2139
2140         case VIDIOCCAPTURE:
2141         {
2142                 int *on = arg, res;
2143
2144                 dprintk(3, KERN_DEBUG "%s: VIDIOCCAPTURE - on=%d\n",
2145                         ZR_DEVNAME(zr), *on);
2146
2147                 mutex_lock(&zr->resource_lock);
2148                 res = setup_overlay(file, *on);
2149                 mutex_unlock(&zr->resource_lock);
2150
2151                 return res;
2152         }
2153                 break;
2154
2155         case VIDIOCGWIN:
2156         {
2157                 struct video_window *vwin = arg;
2158
2159                 dprintk(3, KERN_DEBUG "%s: VIDIOCGWIN\n", ZR_DEVNAME(zr));
2160
2161                 memset(vwin, 0, sizeof(struct video_window));
2162                 mutex_lock(&zr->resource_lock);
2163                 vwin->x = fh->overlay_settings.x;
2164                 vwin->y = fh->overlay_settings.y;
2165                 vwin->width = fh->overlay_settings.width;
2166                 vwin->height = fh->overlay_settings.height;
2167                 mutex_unlock(&zr->resource_lock);
2168                 vwin->clipcount = 0;
2169                 return 0;
2170         }
2171                 break;
2172
2173         case VIDIOCSWIN:
2174         {
2175                 struct video_window *vwin = arg;
2176                 int res;
2177
2178                 dprintk(3,
2179                         KERN_DEBUG
2180                         "%s: VIDIOCSWIN - x=%d, y=%d, w=%d, h=%d, clipcount=%d\n",
2181                         ZR_DEVNAME(zr), vwin->x, vwin->y, vwin->width,
2182                         vwin->height, vwin->clipcount);
2183
2184                 mutex_lock(&zr->resource_lock);
2185                 res =
2186                     setup_window(file, vwin->x, vwin->y, vwin->width,
2187                                  vwin->height, vwin->clips,
2188                                  vwin->clipcount, NULL);
2189                 mutex_unlock(&zr->resource_lock);
2190
2191                 return res;
2192         }
2193                 break;
2194
2195         case VIDIOCGFBUF:
2196         {
2197                 struct video_buffer *vbuf = arg;
2198
2199                 dprintk(3, KERN_DEBUG "%s: VIDIOCGFBUF\n", ZR_DEVNAME(zr));
2200
2201                 mutex_lock(&zr->resource_lock);
2202                 *vbuf = zr->buffer;
2203                 mutex_unlock(&zr->resource_lock);
2204                 return 0;
2205         }
2206                 break;
2207
2208         case VIDIOCSFBUF:
2209         {
2210                 struct video_buffer *vbuf = arg;
2211                 int i, res = 0;
2212
2213                 dprintk(3,
2214                         KERN_DEBUG
2215                         "%s: VIDIOCSFBUF - base=%p, w=%d, h=%d, depth=%d, bpl=%d\n",
2216                         ZR_DEVNAME(zr), vbuf->base, vbuf->width,
2217                         vbuf->height, vbuf->depth, vbuf->bytesperline);
2218
2219                 for (i = 0; i < NUM_FORMATS; i++)
2220                         if (zoran_formats[i].depth == vbuf->depth)
2221                                 break;
2222                 if (i == NUM_FORMATS) {
2223                         dprintk(1,
2224                                 KERN_ERR
2225                                 "%s: VIDIOCSFBUF - invalid fbuf depth %d\n",
2226                                 ZR_DEVNAME(zr), vbuf->depth);
2227                         return -EINVAL;
2228                 }
2229
2230                 mutex_lock(&zr->resource_lock);
2231                 res =
2232                     setup_fbuffer(file, vbuf->base, &zoran_formats[i],
2233                                   vbuf->width, vbuf->height,
2234                                   vbuf->bytesperline);
2235                 mutex_unlock(&zr->resource_lock);
2236
2237                 return res;
2238         }
2239                 break;
2240
2241         case VIDIOCSYNC:
2242         {
2243                 int *frame = arg, res;
2244
2245                 dprintk(3, KERN_DEBUG "%s: VIDIOCSYNC - frame=%d\n",
2246                         ZR_DEVNAME(zr), *frame);
2247
2248                 mutex_lock(&zr->resource_lock);
2249                 res = v4l_sync(file, *frame);
2250                 mutex_unlock(&zr->resource_lock);
2251                 if (!res)
2252                         zr->v4l_sync_tail++;
2253                 return res;
2254         }
2255                 break;
2256
2257         case VIDIOCMCAPTURE:
2258         {
2259                 struct video_mmap *vmap = arg;
2260                 int res;
2261
2262                 dprintk(3,
2263                         KERN_DEBUG
2264                         "%s: VIDIOCMCAPTURE - frame=%d, geom=%dx%d, fmt=%d\n",
2265                         ZR_DEVNAME(zr), vmap->frame, vmap->width, vmap->height,
2266                         vmap->format);
2267
2268                 mutex_lock(&zr->resource_lock);
2269                 res = v4l_grab(file, vmap);
2270                 mutex_unlock(&zr->resource_lock);
2271                 return res;
2272         }
2273                 break;
2274
2275         case VIDIOCGMBUF:
2276         {
2277                 struct video_mbuf *vmbuf = arg;
2278                 int i, res = 0;
2279
2280                 dprintk(3, KERN_DEBUG "%s: VIDIOCGMBUF\n", ZR_DEVNAME(zr));
2281
2282                 vmbuf->size =
2283                     fh->v4l_buffers.num_buffers *
2284                     fh->v4l_buffers.buffer_size;
2285                 vmbuf->frames = fh->v4l_buffers.num_buffers;
2286                 for (i = 0; i < vmbuf->frames; i++) {
2287                         vmbuf->offsets[i] =
2288                             i * fh->v4l_buffers.buffer_size;
2289                 }
2290
2291                 mutex_lock(&zr->resource_lock);
2292
2293                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2294                         dprintk(1,
2295                                 KERN_ERR
2296                                 "%s: VIDIOCGMBUF - buffers already allocated\n",
2297                                 ZR_DEVNAME(zr));
2298                         res = -EINVAL;
2299                         goto v4l1reqbuf_unlock_and_return;
2300                 }
2301
2302                 if (v4l_fbuffer_alloc(file)) {
2303                         res = -ENOMEM;
2304                         goto v4l1reqbuf_unlock_and_return;
2305                 }
2306
2307                 /* The next mmap will map the V4L buffers */
2308                 fh->map_mode = ZORAN_MAP_MODE_RAW;
2309         v4l1reqbuf_unlock_and_return:
2310                 mutex_unlock(&zr->resource_lock);
2311
2312                 return res;
2313         }
2314                 break;
2315
2316         case VIDIOCGUNIT:
2317         {
2318                 struct video_unit *vunit = arg;
2319
2320                 dprintk(3, KERN_DEBUG "%s: VIDIOCGUNIT\n", ZR_DEVNAME(zr));
2321
2322                 vunit->video = zr->video_dev->minor;
2323                 vunit->vbi = VIDEO_NO_UNIT;
2324                 vunit->radio = VIDEO_NO_UNIT;
2325                 vunit->audio = VIDEO_NO_UNIT;
2326                 vunit->teletext = VIDEO_NO_UNIT;
2327
2328                 return 0;
2329         }
2330                 break;
2331
2332                 /*
2333                  * RJ: In principal we could support subcaptures for V4L grabbing.
2334                  *     Not even the famous BTTV driver has them, however.
2335                  *     If there should be a strong demand, one could consider
2336                  *     to implement them.
2337                  */
2338         case VIDIOCGCAPTURE:
2339         {
2340                 dprintk(3, KERN_ERR "%s: VIDIOCGCAPTURE not supported\n",
2341                         ZR_DEVNAME(zr));
2342                 return -EINVAL;
2343         }
2344                 break;
2345
2346         case VIDIOCSCAPTURE:
2347         {
2348                 dprintk(3, KERN_ERR "%s: VIDIOCSCAPTURE not supported\n",
2349                         ZR_DEVNAME(zr));
2350                 return -EINVAL;
2351         }
2352                 break;
2353
2354         case BUZIOC_G_PARAMS:
2355         {
2356                 struct zoran_params *bparams = arg;
2357
2358                 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_PARAMS\n", ZR_DEVNAME(zr));
2359
2360                 memset(bparams, 0, sizeof(struct zoran_params));
2361                 bparams->major_version = MAJOR_VERSION;
2362                 bparams->minor_version = MINOR_VERSION;
2363
2364                 mutex_lock(&zr->resource_lock);
2365
2366                 bparams->norm = zr->norm;
2367                 bparams->input = zr->input;
2368
2369                 bparams->decimation = fh->jpg_settings.decimation;
2370                 bparams->HorDcm = fh->jpg_settings.HorDcm;
2371                 bparams->VerDcm = fh->jpg_settings.VerDcm;
2372                 bparams->TmpDcm = fh->jpg_settings.TmpDcm;
2373                 bparams->field_per_buff = fh->jpg_settings.field_per_buff;
2374                 bparams->img_x = fh->jpg_settings.img_x;
2375                 bparams->img_y = fh->jpg_settings.img_y;
2376                 bparams->img_width = fh->jpg_settings.img_width;
2377                 bparams->img_height = fh->jpg_settings.img_height;
2378                 bparams->odd_even = fh->jpg_settings.odd_even;
2379
2380                 bparams->quality = fh->jpg_settings.jpg_comp.quality;
2381                 bparams->APPn = fh->jpg_settings.jpg_comp.APPn;
2382                 bparams->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2383                 memcpy(bparams->APP_data,
2384                        fh->jpg_settings.jpg_comp.APP_data,
2385                        sizeof(bparams->APP_data));
2386                 bparams->COM_len = zr->jpg_settings.jpg_comp.COM_len;
2387                 memcpy(bparams->COM_data,
2388                        fh->jpg_settings.jpg_comp.COM_data,
2389                        sizeof(bparams->COM_data));
2390                 bparams->jpeg_markers =
2391                     fh->jpg_settings.jpg_comp.jpeg_markers;
2392
2393                 mutex_unlock(&zr->resource_lock);
2394
2395                 bparams->VFIFO_FB = 0;
2396
2397                 return 0;
2398         }
2399                 break;
2400
2401         case BUZIOC_S_PARAMS:
2402         {
2403                 struct zoran_params *bparams = arg;
2404                 int res = 0;
2405
2406                 dprintk(3, KERN_DEBUG "%s: BUZIOC_S_PARAMS\n", ZR_DEVNAME(zr));
2407
2408                 settings.decimation = bparams->decimation;
2409                 settings.HorDcm = bparams->HorDcm;
2410                 settings.VerDcm = bparams->VerDcm;
2411                 settings.TmpDcm = bparams->TmpDcm;
2412                 settings.field_per_buff = bparams->field_per_buff;
2413                 settings.img_x = bparams->img_x;
2414                 settings.img_y = bparams->img_y;
2415                 settings.img_width = bparams->img_width;
2416                 settings.img_height = bparams->img_height;
2417                 settings.odd_even = bparams->odd_even;
2418
2419                 settings.jpg_comp.quality = bparams->quality;
2420                 settings.jpg_comp.APPn = bparams->APPn;
2421                 settings.jpg_comp.APP_len = bparams->APP_len;
2422                 memcpy(settings.jpg_comp.APP_data, bparams->APP_data,
2423                        sizeof(bparams->APP_data));
2424                 settings.jpg_comp.COM_len = bparams->COM_len;
2425                 memcpy(settings.jpg_comp.COM_data, bparams->COM_data,
2426                        sizeof(bparams->COM_data));
2427                 settings.jpg_comp.jpeg_markers = bparams->jpeg_markers;
2428
2429                 mutex_lock(&zr->resource_lock);
2430
2431                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2432                         dprintk(1,
2433                                 KERN_ERR
2434                                 "%s: BUZIOC_S_PARAMS called, but Buz in capture/playback mode\n",
2435                                 ZR_DEVNAME(zr));
2436                         res = -EINVAL;
2437                         goto sparams_unlock_and_return;
2438                 }
2439
2440                 /* Check the params first before overwriting our
2441                  * nternal values */
2442                 if (zoran_check_jpg_settings(zr, &settings)) {
2443                         res = -EINVAL;
2444                         goto sparams_unlock_and_return;
2445                 }
2446
2447                 fh->jpg_settings = settings;
2448         sparams_unlock_and_return:
2449                 mutex_unlock(&zr->resource_lock);
2450
2451                 return res;
2452         }
2453                 break;
2454
2455         case BUZIOC_REQBUFS:
2456         {
2457                 struct zoran_requestbuffers *breq = arg;
2458                 int res = 0;
2459
2460                 dprintk(3,
2461                         KERN_DEBUG
2462                         "%s: BUZIOC_REQBUFS - count=%lu, size=%lu\n",
2463                         ZR_DEVNAME(zr), breq->count, breq->size);
2464
2465                 /* Enforce reasonable lower and upper limits */
2466                 if (breq->count < 4)
2467                         breq->count = 4;        /* Could be choosen smaller */
2468                 if (breq->count > jpg_nbufs)
2469                         breq->count = jpg_nbufs;
2470                 breq->size = PAGE_ALIGN(breq->size);
2471                 if (breq->size < 8192)
2472                         breq->size = 8192;      /* Arbitrary */
2473                 /* breq->size is limited by 1 page for the stat_com
2474                  * tables to a Maximum of 2 MB */
2475                 if (breq->size > jpg_bufsize)
2476                         breq->size = jpg_bufsize;
2477                 if (fh->jpg_buffers.need_contiguous &&
2478                     breq->size > MAX_KMALLOC_MEM)
2479                         breq->size = MAX_KMALLOC_MEM;
2480
2481                 mutex_lock(&zr->resource_lock);
2482
2483                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2484                         dprintk(1,
2485                                 KERN_ERR
2486                                 "%s: BUZIOC_REQBUFS - buffers allready allocated\n",
2487                                 ZR_DEVNAME(zr));
2488                         res = -EBUSY;
2489                         goto jpgreqbuf_unlock_and_return;
2490                 }
2491
2492                 fh->jpg_buffers.num_buffers = breq->count;
2493                 fh->jpg_buffers.buffer_size = breq->size;
2494
2495                 if (jpg_fbuffer_alloc(file)) {
2496                         res = -ENOMEM;
2497                         goto jpgreqbuf_unlock_and_return;
2498                 }
2499
2500                 /* The next mmap will map the MJPEG buffers - could
2501                  * also be *_PLAY, but it doesn't matter here */
2502                 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
2503         jpgreqbuf_unlock_and_return:
2504                 mutex_unlock(&zr->resource_lock);
2505
2506                 return res;
2507         }
2508                 break;
2509
2510         case BUZIOC_QBUF_CAPT:
2511         {
2512                 int *frame = arg, res;
2513
2514                 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_CAPT - frame=%d\n",
2515                         ZR_DEVNAME(zr), *frame);
2516
2517                 mutex_lock(&zr->resource_lock);
2518                 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_COMPRESS);
2519                 mutex_unlock(&zr->resource_lock);
2520
2521                 return res;
2522         }
2523                 break;
2524
2525         case BUZIOC_QBUF_PLAY:
2526         {
2527                 int *frame = arg, res;
2528
2529                 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_PLAY - frame=%d\n",
2530                         ZR_DEVNAME(zr), *frame);
2531
2532                 mutex_lock(&zr->resource_lock);
2533                 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_DECOMPRESS);
2534                 mutex_unlock(&zr->resource_lock);
2535
2536                 return res;
2537         }
2538                 break;
2539
2540         case BUZIOC_SYNC:
2541         {
2542                 struct zoran_sync *bsync = arg;
2543                 int res;
2544
2545                 dprintk(3, KERN_DEBUG "%s: BUZIOC_SYNC\n", ZR_DEVNAME(zr));
2546
2547                 mutex_lock(&zr->resource_lock);
2548                 res = jpg_sync(file, bsync);
2549                 mutex_unlock(&zr->resource_lock);
2550
2551                 return res;
2552         }
2553                 break;
2554
2555         case BUZIOC_G_STATUS:
2556         {
2557                 struct zoran_status *bstat = arg;
2558                 int norm, input, status, res = 0;
2559
2560                 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_STATUS\n", ZR_DEVNAME(zr));
2561
2562                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2563                         dprintk(1,
2564                                 KERN_ERR
2565                                 "%s: BUZIOC_G_STATUS called but Buz in capture/playback mode\n",
2566                                 ZR_DEVNAME(zr));
2567                         return -EINVAL;
2568                 }
2569
2570                 input = zr->card.input[bstat->input].muxsel;
2571                 norm = VIDEO_MODE_AUTO;
2572
2573                 mutex_lock(&zr->resource_lock);
2574
2575                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2576                         dprintk(1,
2577                                 KERN_ERR
2578                                 "%s: BUZIOC_G_STATUS called, but Buz in capture/playback mode\n",
2579                                 ZR_DEVNAME(zr));
2580                         res = -EINVAL;
2581                         goto gstat_unlock_and_return;
2582                 }
2583
2584                 decoder_command(zr, DECODER_SET_INPUT, &input);
2585                 decoder_command(zr, DECODER_SET_NORM, &norm);
2586
2587                 /* sleep 1 second */
2588                 ssleep(1);
2589
2590                 /* Get status of video decoder */
2591                 decoder_command(zr, DECODER_GET_STATUS, &status);
2592
2593                 /* restore previous input and norm */
2594                 input = zr->card.input[zr->input].muxsel;
2595                 decoder_command(zr, DECODER_SET_INPUT, &input);
2596                 decoder_command(zr, DECODER_SET_NORM, &zr->norm);
2597         gstat_unlock_and_return:
2598                 mutex_unlock(&zr->resource_lock);
2599
2600                 if (!res) {
2601                         bstat->signal =
2602                             (status & DECODER_STATUS_GOOD) ? 1 : 0;
2603                         if (status & DECODER_STATUS_NTSC)
2604                                 bstat->norm = VIDEO_MODE_NTSC;
2605                         else if (status & DECODER_STATUS_SECAM)
2606                                 bstat->norm = VIDEO_MODE_SECAM;
2607                         else
2608                                 bstat->norm = VIDEO_MODE_PAL;
2609
2610                         bstat->color =
2611                             (status & DECODER_STATUS_COLOR) ? 1 : 0;
2612                 }
2613
2614                 return res;
2615         }
2616                 break;
2617
2618                 /* The new video4linux2 capture interface - much nicer than video4linux1, since
2619                  * it allows for integrating the JPEG capturing calls inside standard v4l2
2620                  */
2621
2622         case VIDIOC_QUERYCAP:
2623         {
2624                 struct v4l2_capability *cap = arg;
2625
2626                 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCAP\n", ZR_DEVNAME(zr));
2627
2628                 memset(cap, 0, sizeof(*cap));
2629                 strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
2630                 strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
2631                 snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
2632                          pci_name(zr->pci_dev));
2633                 cap->version =
2634                     KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION,
2635                                    RELEASE_VERSION);
2636                 cap->capabilities = ZORAN_V4L2_VID_FLAGS;
2637
2638                 return 0;
2639         }
2640                 break;
2641
2642         case VIDIOC_ENUM_FMT:
2643         {
2644                 struct v4l2_fmtdesc *fmt = arg;
2645                 int index = fmt->index, num = -1, i, flag = 0, type =
2646                     fmt->type;
2647
2648                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUM_FMT - index=%d\n",
2649                         ZR_DEVNAME(zr), fmt->index);
2650
2651                 switch (fmt->type) {
2652                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2653                         flag = ZORAN_FORMAT_CAPTURE;
2654                         break;
2655                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2656                         flag = ZORAN_FORMAT_PLAYBACK;
2657                         break;
2658                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2659                         flag = ZORAN_FORMAT_OVERLAY;
2660                         break;
2661                 default:
2662                         dprintk(1,
2663                                 KERN_ERR
2664                                 "%s: VIDIOC_ENUM_FMT - unknown type %d\n",
2665                                 ZR_DEVNAME(zr), fmt->type);
2666                         return -EINVAL;
2667                 }
2668
2669                 for (i = 0; i < NUM_FORMATS; i++) {
2670                         if (zoran_formats[i].flags & flag)
2671                                 num++;
2672                         if (num == fmt->index)
2673                                 break;
2674                 }
2675                 if (fmt->index < 0 /* late, but not too late */  ||
2676                     i == NUM_FORMATS)
2677                         return -EINVAL;
2678
2679                 memset(fmt, 0, sizeof(*fmt));
2680                 fmt->index = index;
2681                 fmt->type = type;
2682                 strncpy(fmt->description, zoran_formats[i].name, sizeof(fmt->description)-1);
2683                 fmt->pixelformat = zoran_formats[i].fourcc;
2684                 if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
2685                         fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
2686
2687                 return 0;
2688         }
2689                 break;
2690
2691         case VIDIOC_G_FMT:
2692         {
2693                 struct v4l2_format *fmt = arg;
2694                 int type = fmt->type;
2695
2696                 dprintk(5, KERN_DEBUG "%s: VIDIOC_G_FMT\n", ZR_DEVNAME(zr));
2697
2698                 memset(fmt, 0, sizeof(*fmt));
2699                 fmt->type = type;
2700
2701                 switch (fmt->type) {
2702                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2703
2704                         mutex_lock(&zr->resource_lock);
2705
2706                         fmt->fmt.win.w.left = fh->overlay_settings.x;
2707                         fmt->fmt.win.w.top = fh->overlay_settings.y;
2708                         fmt->fmt.win.w.width = fh->overlay_settings.width;
2709                         fmt->fmt.win.w.height =
2710                             fh->overlay_settings.height;
2711                         if (fh->overlay_settings.width * 2 >
2712                             BUZ_MAX_HEIGHT)
2713                                 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
2714                         else
2715                                 fmt->fmt.win.field = V4L2_FIELD_TOP;
2716
2717                         mutex_unlock(&zr->resource_lock);
2718
2719                         break;
2720
2721                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2722                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2723
2724                         mutex_lock(&zr->resource_lock);
2725
2726                         if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2727                             fh->map_mode == ZORAN_MAP_MODE_RAW) {
2728
2729                                 fmt->fmt.pix.width =
2730                                     fh->v4l_settings.width;
2731                                 fmt->fmt.pix.height =
2732                                     fh->v4l_settings.height;
2733                                 fmt->fmt.pix.sizeimage =
2734                                     fh->v4l_settings.bytesperline *
2735                                     fh->v4l_settings.height;
2736                                 fmt->fmt.pix.pixelformat =
2737                                     fh->v4l_settings.format->fourcc;
2738                                 fmt->fmt.pix.colorspace =
2739                                     fh->v4l_settings.format->colorspace;
2740                                 fmt->fmt.pix.bytesperline = 0;
2741                                 if (BUZ_MAX_HEIGHT <
2742                                     (fh->v4l_settings.height * 2))
2743                                         fmt->fmt.pix.field =
2744                                             V4L2_FIELD_INTERLACED;
2745                                 else
2746                                         fmt->fmt.pix.field =
2747                                             V4L2_FIELD_TOP;
2748
2749                         } else {
2750
2751                                 fmt->fmt.pix.width =
2752                                     fh->jpg_settings.img_width /
2753                                     fh->jpg_settings.HorDcm;
2754                                 fmt->fmt.pix.height =
2755                                     fh->jpg_settings.img_height /
2756                                     (fh->jpg_settings.VerDcm *
2757                                      fh->jpg_settings.TmpDcm);
2758                                 fmt->fmt.pix.sizeimage =
2759                                     zoran_v4l2_calc_bufsize(&fh->
2760                                                             jpg_settings);
2761                                 fmt->fmt.pix.pixelformat =
2762                                     V4L2_PIX_FMT_MJPEG;
2763                                 if (fh->jpg_settings.TmpDcm == 1)
2764                                         fmt->fmt.pix.field =
2765                                             (fh->jpg_settings.
2766                                              odd_even ? V4L2_FIELD_SEQ_BT :
2767                                              V4L2_FIELD_SEQ_BT);
2768                                 else
2769                                         fmt->fmt.pix.field =
2770                                             (fh->jpg_settings.
2771                                              odd_even ? V4L2_FIELD_TOP :
2772                                              V4L2_FIELD_BOTTOM);
2773
2774                                 fmt->fmt.pix.bytesperline = 0;
2775                                 fmt->fmt.pix.colorspace =
2776                                     V4L2_COLORSPACE_SMPTE170M;
2777                         }
2778
2779                         mutex_unlock(&zr->resource_lock);
2780
2781                         break;
2782
2783                 default:
2784                         dprintk(1,
2785                                 KERN_ERR
2786                                 "%s: VIDIOC_G_FMT - unsupported type %d\n",
2787                                 ZR_DEVNAME(zr), fmt->type);
2788                         return -EINVAL;
2789                 }
2790                 return 0;
2791         }
2792                 break;
2793
2794         case VIDIOC_S_FMT:
2795         {
2796                 struct v4l2_format *fmt = arg;
2797                 int i, res = 0;
2798                 __u32 printformat;
2799
2800                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_FMT - type=%d, ",
2801                         ZR_DEVNAME(zr), fmt->type);
2802
2803                 switch (fmt->type) {
2804                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2805
2806                         dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
2807                                 fmt->fmt.win.w.left, fmt->fmt.win.w.top,
2808                                 fmt->fmt.win.w.width,
2809                                 fmt->fmt.win.w.height,
2810                                 fmt->fmt.win.clipcount,
2811                                 fmt->fmt.win.bitmap);
2812                         mutex_lock(&zr->resource_lock);
2813                         res =
2814                             setup_window(file, fmt->fmt.win.w.left,
2815                                          fmt->fmt.win.w.top,
2816                                          fmt->fmt.win.w.width,
2817                                          fmt->fmt.win.w.height,
2818                                          (struct video_clip __user *)
2819                                            fmt->fmt.win.clips,
2820                                          fmt->fmt.win.clipcount,
2821                                          fmt->fmt.win.bitmap);
2822                         mutex_unlock(&zr->resource_lock);
2823                         return res;
2824                         break;
2825
2826                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2827                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2828
2829                         printformat =
2830                             __cpu_to_le32(fmt->fmt.pix.pixelformat);
2831                         dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
2832                                 fmt->fmt.pix.width, fmt->fmt.pix.height,
2833                                 fmt->fmt.pix.pixelformat,
2834                                 (char *) &printformat);
2835
2836                         if (fmt->fmt.pix.bytesperline > 0) {
2837                                 dprintk(5,
2838                                         KERN_ERR "%s: bpl not supported\n",
2839                                         ZR_DEVNAME(zr));
2840                                 return -EINVAL;
2841                         }
2842
2843                         /* we can be requested to do JPEG/raw playback/capture */
2844                         if (!
2845                             (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2846                              (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2847                               fmt->fmt.pix.pixelformat ==
2848                               V4L2_PIX_FMT_MJPEG))) {
2849                                 dprintk(1,
2850                                         KERN_ERR
2851                                         "%s: VIDIOC_S_FMT - unknown type %d/0x%x(%4.4s) combination\n",
2852                                         ZR_DEVNAME(zr), fmt->type,
2853                                         fmt->fmt.pix.pixelformat,
2854                                         (char *) &printformat);
2855                                 return -EINVAL;
2856                         }
2857
2858                         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
2859                                 mutex_lock(&zr->resource_lock);
2860
2861                                 settings = fh->jpg_settings;
2862
2863                                 if (fh->v4l_buffers.allocated ||
2864                                     fh->jpg_buffers.allocated) {
2865                                         dprintk(1,
2866                                                 KERN_ERR
2867                                                 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2868                                                 ZR_DEVNAME(zr));
2869                                         res = -EBUSY;
2870                                         goto sfmtjpg_unlock_and_return;
2871                                 }
2872
2873                                 /* we actually need to set 'real' parameters now */
2874                                 if ((fmt->fmt.pix.height * 2) >
2875                                     BUZ_MAX_HEIGHT)
2876                                         settings.TmpDcm = 1;
2877                                 else
2878                                         settings.TmpDcm = 2;
2879                                 settings.decimation = 0;
2880                                 if (fmt->fmt.pix.height <=
2881                                     fh->jpg_settings.img_height / 2)
2882                                         settings.VerDcm = 2;
2883                                 else
2884                                         settings.VerDcm = 1;
2885                                 if (fmt->fmt.pix.width <=
2886                                     fh->jpg_settings.img_width / 4)
2887                                         settings.HorDcm = 4;
2888                                 else if (fmt->fmt.pix.width <=
2889                                          fh->jpg_settings.img_width / 2)
2890                                         settings.HorDcm = 2;
2891                                 else
2892                                         settings.HorDcm = 1;
2893                                 if (settings.TmpDcm == 1)
2894                                         settings.field_per_buff = 2;
2895                                 else
2896                                         settings.field_per_buff = 1;
2897
2898                                 /* check */
2899                                 if ((res =
2900                                      zoran_check_jpg_settings(zr,
2901                                                               &settings)))
2902                                         goto sfmtjpg_unlock_and_return;
2903
2904                                 /* it's ok, so set them */
2905                                 fh->jpg_settings = settings;
2906
2907                                 /* tell the user what we actually did */
2908                                 fmt->fmt.pix.width =
2909                                     settings.img_width / settings.HorDcm;
2910                                 fmt->fmt.pix.height =
2911                                     settings.img_height * 2 /
2912                                     (settings.TmpDcm * settings.VerDcm);
2913                                 if (settings.TmpDcm == 1)
2914                                         fmt->fmt.pix.field =
2915                                             (fh->jpg_settings.
2916                                              odd_even ? V4L2_FIELD_SEQ_TB :
2917                                              V4L2_FIELD_SEQ_BT);
2918                                 else
2919                                         fmt->fmt.pix.field =
2920                                             (fh->jpg_settings.
2921                                              odd_even ? V4L2_FIELD_TOP :
2922                                              V4L2_FIELD_BOTTOM);
2923                                 fh->jpg_buffers.buffer_size =
2924                                     zoran_v4l2_calc_bufsize(&fh->
2925                                                             jpg_settings);
2926                                 fmt->fmt.pix.sizeimage =
2927                                     fh->jpg_buffers.buffer_size;
2928
2929                                 /* we hereby abuse this variable to show that
2930                                  * we're gonna do mjpeg capture */
2931                                 fh->map_mode =
2932                                     (fmt->type ==
2933                                      V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
2934                                     ZORAN_MAP_MODE_JPG_REC :
2935                                     ZORAN_MAP_MODE_JPG_PLAY;
2936                         sfmtjpg_unlock_and_return:
2937                                 mutex_unlock(&zr->resource_lock);
2938                         } else {
2939                                 for (i = 0; i < NUM_FORMATS; i++)
2940                                         if (fmt->fmt.pix.pixelformat ==
2941                                             zoran_formats[i].fourcc)
2942                                                 break;
2943                                 if (i == NUM_FORMATS) {
2944                                         dprintk(1,
2945                                                 KERN_ERR
2946                                                 "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x (%4.4s)\n",
2947                                                 ZR_DEVNAME(zr),
2948                                                 fmt->fmt.pix.pixelformat,
2949                                                 (char *) &printformat);
2950                                         return -EINVAL;
2951                                 }
2952                                 mutex_lock(&zr->resource_lock);
2953                                 if (fh->jpg_buffers.allocated ||
2954                                     (fh->v4l_buffers.allocated &&
2955                                      fh->v4l_buffers.active !=
2956                                      ZORAN_FREE)) {
2957                                         dprintk(1,
2958                                                 KERN_ERR
2959                                                 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2960                                                 ZR_DEVNAME(zr));
2961                                         res = -EBUSY;
2962                                         goto sfmtv4l_unlock_and_return;
2963                                 }
2964                                 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
2965                                         fmt->fmt.pix.height =
2966                                             BUZ_MAX_HEIGHT;
2967                                 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
2968                                         fmt->fmt.pix.width = BUZ_MAX_WIDTH;
2969
2970                                 if ((res =
2971                                      zoran_v4l_set_format(file,
2972                                                           fmt->fmt.pix.
2973                                                           width,
2974                                                           fmt->fmt.pix.
2975                                                           height,
2976                                                           &zoran_formats
2977                                                           [i])))
2978                                         goto sfmtv4l_unlock_and_return;
2979
2980                                 /* tell the user the
2981                                  * results/missing stuff */
2982                                 fmt->fmt.pix.sizeimage =
2983                                         fh->v4l_settings.height *
2984                                         fh->v4l_settings.bytesperline;
2985                                 if (BUZ_MAX_HEIGHT <
2986                                     (fh->v4l_settings.height * 2))
2987                                         fmt->fmt.pix.field =
2988                                             V4L2_FIELD_INTERLACED;
2989                                 else
2990                                         fmt->fmt.pix.field =
2991                                             V4L2_FIELD_TOP;
2992
2993                                 fh->map_mode = ZORAN_MAP_MODE_RAW;
2994                         sfmtv4l_unlock_and_return:
2995                                 mutex_unlock(&zr->resource_lock);
2996                         }
2997
2998                         break;
2999
3000                 default:
3001                         dprintk(3, "unsupported\n");
3002                         dprintk(1,
3003                                 KERN_ERR
3004                                 "%s: VIDIOC_S_FMT - unsupported type %d\n",
3005                                 ZR_DEVNAME(zr), fmt->type);
3006                         return -EINVAL;
3007                 }
3008
3009                 return res;
3010         }
3011                 break;
3012
3013         case VIDIOC_G_FBUF:
3014         {
3015                 struct v4l2_framebuffer *fb = arg;
3016
3017                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_FBUF\n", ZR_DEVNAME(zr));
3018
3019                 memset(fb, 0, sizeof(*fb));
3020                 mutex_lock(&zr->resource_lock);
3021                 fb->base = zr->buffer.base;
3022                 fb->fmt.width = zr->buffer.width;
3023                 fb->fmt.height = zr->buffer.height;
3024                 if (zr->overlay_settings.format) {
3025                         fb->fmt.pixelformat =
3026                                 fh->overlay_settings.format->fourcc;
3027                 }
3028                 fb->fmt.bytesperline = zr->buffer.bytesperline;
3029                 mutex_unlock(&zr->resource_lock);
3030                 fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
3031                 fb->fmt.field = V4L2_FIELD_INTERLACED;
3032                 fb->flags = V4L2_FBUF_FLAG_OVERLAY;
3033                 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
3034
3035                 return 0;
3036         }
3037                 break;
3038
3039         case VIDIOC_S_FBUF:
3040         {
3041                 int i, res = 0;
3042                 struct v4l2_framebuffer *fb = arg;
3043                 __u32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
3044
3045                 dprintk(3,
3046                         KERN_DEBUG
3047                         "%s: VIDIOC_S_FBUF - base=0x%p, size=%dx%d, bpl=%d, fmt=0x%x (%4.4s)\n",
3048                         ZR_DEVNAME(zr), fb->base, fb->fmt.width, fb->fmt.height,
3049                         fb->fmt.bytesperline, fb->fmt.pixelformat,
3050                         (char *) &printformat);
3051
3052                 for (i = 0; i < NUM_FORMATS; i++)
3053                         if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
3054                                 break;
3055                 if (i == NUM_FORMATS) {
3056                         dprintk(1,
3057                                 KERN_ERR
3058                                 "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
3059                                 ZR_DEVNAME(zr), fb->fmt.pixelformat,
3060                                 (char *) &printformat);
3061                         return -EINVAL;
3062                 }
3063
3064                 mutex_lock(&zr->resource_lock);
3065                 res =
3066                     setup_fbuffer(file, fb->base, &zoran_formats[i],
3067                                   fb->fmt.width, fb->fmt.height,
3068                                   fb->fmt.bytesperline);
3069                 mutex_unlock(&zr->resource_lock);
3070
3071                 return res;
3072         }
3073                 break;
3074
3075         case VIDIOC_OVERLAY:
3076         {
3077                 int *on = arg, res;
3078
3079                 dprintk(3, KERN_DEBUG "%s: VIDIOC_PREVIEW - on=%d\n",
3080                         ZR_DEVNAME(zr), *on);
3081
3082                 mutex_lock(&zr->resource_lock);
3083                 res = setup_overlay(file, *on);
3084                 mutex_unlock(&zr->resource_lock);
3085
3086                 return res;
3087         }
3088                 break;
3089
3090         case VIDIOC_REQBUFS:
3091         {
3092                 struct v4l2_requestbuffers *req = arg;
3093                 int res = 0;
3094
3095                 dprintk(3, KERN_DEBUG "%s: VIDIOC_REQBUFS - type=%d\n",
3096                         ZR_DEVNAME(zr), req->type);
3097
3098                 if (req->memory != V4L2_MEMORY_MMAP) {
3099                         dprintk(1,
3100                                 KERN_ERR
3101                                 "%s: only MEMORY_MMAP capture is supported, not %d\n",
3102                                 ZR_DEVNAME(zr), req->memory);
3103                         return -EINVAL;
3104                 }
3105
3106                 mutex_lock(&zr->resource_lock);
3107
3108                 if (fh->v4l_buffers.allocated || fh->jpg_buffers.allocated) {
3109                         dprintk(1,
3110                                 KERN_ERR
3111                                 "%s: VIDIOC_REQBUFS - buffers allready allocated\n",
3112                                 ZR_DEVNAME(zr));
3113                         res = -EBUSY;
3114                         goto v4l2reqbuf_unlock_and_return;
3115                 }
3116
3117                 if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
3118                     req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3119
3120                         /* control user input */
3121                         if (req->count < 2)
3122                                 req->count = 2;
3123                         if (req->count > v4l_nbufs)
3124                                 req->count = v4l_nbufs;
3125                         fh->v4l_buffers.num_buffers = req->count;
3126
3127                         if (v4l_fbuffer_alloc(file)) {
3128                                 res = -ENOMEM;
3129                                 goto v4l2reqbuf_unlock_and_return;
3130                         }
3131
3132                         /* The next mmap will map the V4L buffers */
3133                         fh->map_mode = ZORAN_MAP_MODE_RAW;
3134
3135                 } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
3136                            fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3137
3138                         /* we need to calculate size ourselves now */
3139                         if (req->count < 4)
3140                                 req->count = 4;
3141                         if (req->count > jpg_nbufs)
3142                                 req->count = jpg_nbufs;
3143                         fh->jpg_buffers.num_buffers = req->count;
3144                         fh->jpg_buffers.buffer_size =
3145                             zoran_v4l2_calc_bufsize(&fh->jpg_settings);
3146
3147                         if (jpg_fbuffer_alloc(file)) {
3148                                 res = -ENOMEM;
3149                                 goto v4l2reqbuf_unlock_and_return;
3150                         }
3151
3152                         /* The next mmap will map the MJPEG buffers */
3153                         if (req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
3154                                 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
3155                         else
3156                                 fh->map_mode = ZORAN_MAP_MODE_JPG_PLAY;
3157
3158                 } else {
3159                         dprintk(1,
3160                                 KERN_ERR
3161                                 "%s: VIDIOC_REQBUFS - unknown type %d\n",
3162                                 ZR_DEVNAME(zr), req->type);
3163                         res = -EINVAL;
3164                         goto v4l2reqbuf_unlock_and_return;
3165                 }
3166         v4l2reqbuf_unlock_and_return:
3167                 mutex_unlock(&zr->resource_lock);
3168
3169                 return 0;
3170         }
3171                 break;
3172
3173         case VIDIOC_QUERYBUF:
3174         {
3175                 struct v4l2_buffer *buf = arg;
3176                 __u32 type = buf->type;
3177                 int index = buf->index, res;
3178
3179                 dprintk(3,
3180                         KERN_DEBUG
3181                         "%s: VIDIOC_QUERYBUF - index=%d, type=%d\n",
3182                         ZR_DEVNAME(zr), buf->index, buf->type);
3183
3184                 memset(buf, 0, sizeof(*buf));
3185                 buf->type = type;
3186                 buf->index = index;
3187
3188                 mutex_lock(&zr->resource_lock);
3189                 res = zoran_v4l2_buffer_status(file, buf, buf->index);
3190                 mutex_unlock(&zr->resource_lock);
3191
3192                 return res;
3193         }
3194                 break;
3195
3196         case VIDIOC_QBUF:
3197         {
3198                 struct v4l2_buffer *buf = arg;
3199                 int res = 0, codec_mode, buf_type;
3200
3201                 dprintk(3,
3202                         KERN_DEBUG "%s: VIDIOC_QBUF - type=%d, index=%d\n",
3203                         ZR_DEVNAME(zr), buf->type, buf->index);
3204
3205                 mutex_lock(&zr->resource_lock);
3206
3207                 switch (fh->map_mode) {
3208                 case ZORAN_MAP_MODE_RAW:
3209                         if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3210                                 dprintk(1,
3211                                         KERN_ERR
3212                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3213                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3214                                 res = -EINVAL;
3215                                 goto qbuf_unlock_and_return;
3216                         }
3217
3218                         res = zoran_v4l_queue_frame(file, buf->index);
3219                         if (res)
3220                                 goto qbuf_unlock_and_return;
3221                         if (!zr->v4l_memgrab_active &&
3222                             fh->v4l_buffers.active == ZORAN_LOCKED)
3223                                 zr36057_set_memgrab(zr, 1);
3224                         break;
3225
3226                 case ZORAN_MAP_MODE_JPG_REC:
3227                 case ZORAN_MAP_MODE_JPG_PLAY:
3228                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3229                                 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3230                                 codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
3231                         } else {
3232                                 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3233                                 codec_mode = BUZ_MODE_MOTION_COMPRESS;
3234                         }
3235
3236                         if (buf->type != buf_type) {
3237                                 dprintk(1,
3238                                         KERN_ERR
3239                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3240                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3241                                 res = -EINVAL;
3242                                 goto qbuf_unlock_and_return;
3243                         }
3244
3245                         res =
3246                             zoran_jpg_queue_frame(file, buf->index,
3247                                                   codec_mode);
3248                         if (res != 0)
3249                                 goto qbuf_unlock_and_return;
3250                         if (zr->codec_mode == BUZ_MODE_IDLE &&
3251                             fh->jpg_buffers.active == ZORAN_LOCKED) {
3252                                 zr36057_enable_jpg(zr, codec_mode);
3253                         }
3254                         break;
3255
3256                 default:
3257                         dprintk(1,
3258                                 KERN_ERR
3259                                 "%s: VIDIOC_QBUF - unsupported type %d\n",
3260                                 ZR_DEVNAME(zr), buf->type);
3261                         res = -EINVAL;
3262                         goto qbuf_unlock_and_return;
3263                 }
3264         qbuf_unlock_and_return:
3265                 mutex_unlock(&zr->resource_lock);
3266
3267                 return res;
3268         }
3269                 break;
3270
3271         case VIDIOC_DQBUF:
3272         {
3273                 struct v4l2_buffer *buf = arg;
3274                 int res = 0, buf_type, num = -1;        /* compiler borks here (?) */
3275
3276                 dprintk(3, KERN_DEBUG "%s: VIDIOC_DQBUF - type=%d\n",
3277                         ZR_DEVNAME(zr), buf->type);
3278
3279                 mutex_lock(&zr->resource_lock);
3280
3281                 switch (fh->map_mode) {
3282                 case ZORAN_MAP_MODE_RAW:
3283                         if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3284                                 dprintk(1,
3285                                         KERN_ERR
3286                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3287                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3288                                 res = -EINVAL;
3289                                 goto dqbuf_unlock_and_return;
3290                         }
3291
3292                         num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
3293                         if (file->f_flags & O_NONBLOCK &&
3294                             zr->v4l_buffers.buffer[num].state !=
3295                             BUZ_STATE_DONE) {
3296                                 res = -EAGAIN;
3297                                 goto dqbuf_unlock_and_return;
3298                         }
3299                         res = v4l_sync(file, num);
3300                         if (res)
3301                                 goto dqbuf_unlock_and_return;
3302                         else
3303                                 zr->v4l_sync_tail++;
3304                         res = zoran_v4l2_buffer_status(file, buf, num);
3305                         break;
3306
3307                 case ZORAN_MAP_MODE_JPG_REC:
3308                 case ZORAN_MAP_MODE_JPG_PLAY:
3309                 {
3310                         struct zoran_sync bs;
3311
3312                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
3313                                 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3314                         else
3315                                 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3316
3317                         if (buf->type != buf_type) {
3318                                 dprintk(1,
3319                                         KERN_ERR
3320                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3321                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3322                                 res = -EINVAL;
3323                                 goto dqbuf_unlock_and_return;
3324                         }
3325
3326                         num =
3327                             zr->jpg_pend[zr->
3328                                          jpg_que_tail & BUZ_MASK_FRAME];
3329
3330                         if (file->f_flags & O_NONBLOCK &&
3331                             zr->jpg_buffers.buffer[num].state !=
3332                             BUZ_STATE_DONE) {
3333                                 res = -EAGAIN;
3334                                 goto dqbuf_unlock_and_return;
3335                         }
3336                         res = jpg_sync(file, &bs);
3337                         if (res)
3338                                 goto dqbuf_unlock_and_return;
3339                         res =
3340                             zoran_v4l2_buffer_status(file, buf, bs.frame);
3341                         break;
3342                 }
3343
3344                 default:
3345                         dprintk(1,
3346                                 KERN_ERR
3347                                 "%s: VIDIOC_DQBUF - unsupported type %d\n",
3348                                 ZR_DEVNAME(zr), buf->type);
3349                         res = -EINVAL;
3350                         goto dqbuf_unlock_and_return;
3351                 }
3352         dqbuf_unlock_and_return:
3353                 mutex_unlock(&zr->resource_lock);
3354
3355                 return res;
3356         }
3357                 break;
3358
3359         case VIDIOC_STREAMON:
3360         {
3361                 int res = 0;
3362
3363                 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMON\n", ZR_DEVNAME(zr));
3364
3365                 mutex_lock(&zr->resource_lock);
3366
3367                 switch (fh->map_mode) {
3368                 case ZORAN_MAP_MODE_RAW:        /* raw capture */
3369                         if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
3370                             fh->v4l_buffers.active != ZORAN_ACTIVE) {
3371                                 res = -EBUSY;
3372                                 goto strmon_unlock_and_return;
3373                         }
3374
3375                         zr->v4l_buffers.active = fh->v4l_buffers.active =
3376                             ZORAN_LOCKED;
3377                         zr->v4l_settings = fh->v4l_settings;
3378
3379                         zr->v4l_sync_tail = zr->v4l_pend_tail;
3380                         if (!zr->v4l_memgrab_active &&
3381                             zr->v4l_pend_head != zr->v4l_pend_tail) {
3382                                 zr36057_set_memgrab(zr, 1);
3383                         }
3384                         break;
3385
3386                 case ZORAN_MAP_MODE_JPG_REC:
3387                 case ZORAN_MAP_MODE_JPG_PLAY:
3388                         /* what is the codec mode right now? */
3389                         if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
3390                             fh->jpg_buffers.active != ZORAN_ACTIVE) {
3391                                 res = -EBUSY;
3392                                 goto strmon_unlock_and_return;
3393                         }
3394
3395                         zr->jpg_buffers.active = fh->jpg_buffers.active =
3396                             ZORAN_LOCKED;
3397
3398                         if (zr->jpg_que_head != zr->jpg_que_tail) {
3399                                 /* Start the jpeg codec when the first frame is queued  */
3400                                 jpeg_start(zr);
3401                         }
3402
3403                         break;
3404                 default:
3405                         dprintk(1,
3406                                 KERN_ERR
3407                                 "%s: VIDIOC_STREAMON - invalid map mode %d\n",
3408                                 ZR_DEVNAME(zr), fh->map_mode);
3409                         res = -EINVAL;
3410                         goto strmon_unlock_and_return;
3411                 }
3412         strmon_unlock_and_return:
3413                 mutex_unlock(&zr->resource_lock);
3414
3415                 return res;
3416         }
3417                 break;
3418
3419         case VIDIOC_STREAMOFF:
3420         {
3421                 int i, res = 0;
3422
3423                 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMOFF\n", ZR_DEVNAME(zr));
3424
3425                 mutex_lock(&zr->resource_lock);
3426
3427                 switch (fh->map_mode) {
3428                 case ZORAN_MAP_MODE_RAW:        /* raw capture */
3429                         if (fh->v4l_buffers.active == ZORAN_FREE &&
3430                             zr->v4l_buffers.active != ZORAN_FREE) {
3431                                 res = -EPERM;   /* stay off other's settings! */
3432                                 goto strmoff_unlock_and_return;
3433                         }
3434                         if (zr->v4l_buffers.active == ZORAN_FREE)
3435                                 goto strmoff_unlock_and_return;
3436
3437                         /* unload capture */
3438                         if (zr->v4l_memgrab_active) {
3439                                 unsigned long flags;
3440
3441                                 spin_lock_irqsave(&zr->spinlock, flags);
3442                                 zr36057_set_memgrab(zr, 0);
3443                                 spin_unlock_irqrestore(&zr->spinlock, flags);
3444                         }
3445
3446                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
3447                                 zr->v4l_buffers.buffer[i].state =
3448                                     BUZ_STATE_USER;
3449                         fh->v4l_buffers = zr->v4l_buffers;
3450
3451                         zr->v4l_buffers.active = fh->v4l_buffers.active =
3452                             ZORAN_FREE;
3453
3454                         zr->v4l_grab_seq = 0;
3455                         zr->v4l_pend_head = zr->v4l_pend_tail = 0;
3456                         zr->v4l_sync_tail = 0;
3457
3458                         break;
3459
3460                 case ZORAN_MAP_MODE_JPG_REC:
3461                 case ZORAN_MAP_MODE_JPG_PLAY:
3462                         if (fh->jpg_buffers.active == ZORAN_FREE &&
3463                             zr->jpg_buffers.active != ZORAN_FREE) {
3464                                 res = -EPERM;   /* stay off other's settings! */
3465                                 goto strmoff_unlock_and_return;
3466                         }
3467                         if (zr->jpg_buffers.active == ZORAN_FREE)
3468                                 goto strmoff_unlock_and_return;
3469
3470                         res =
3471                             jpg_qbuf(file, -1,
3472                                      (fh->map_mode ==
3473                                       ZORAN_MAP_MODE_JPG_REC) ?
3474                                      BUZ_MODE_MOTION_COMPRESS :
3475                                      BUZ_MODE_MOTION_DECOMPRESS);
3476                         if (res)
3477                                 goto strmoff_unlock_and_return;
3478                         break;
3479                 default:
3480                         dprintk(1,
3481                                 KERN_ERR
3482                                 "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
3483                                 ZR_DEVNAME(zr), fh->map_mode);
3484                         res = -EINVAL;
3485                         goto strmoff_unlock_and_return;
3486                 }
3487         strmoff_unlock_and_return:
3488                 mutex_unlock(&zr->resource_lock);
3489
3490                 return res;
3491         }
3492                 break;
3493
3494         case VIDIOC_QUERYCTRL:
3495         {
3496                 struct v4l2_queryctrl *ctrl = arg;
3497
3498                 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCTRL - id=%d\n",
3499                         ZR_DEVNAME(zr), ctrl->id);
3500
3501                 /* we only support hue/saturation/contrast/brightness */
3502                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3503                     ctrl->id > V4L2_CID_HUE)
3504                         return -EINVAL;
3505                 else {
3506                         int id = ctrl->id;
3507                         memset(ctrl, 0, sizeof(*ctrl));
3508                         ctrl->id = id;
3509                 }
3510
3511                 switch (ctrl->id) {
3512                 case V4L2_CID_BRIGHTNESS:
3513                         strncpy(ctrl->name, "Brightness", sizeof(ctrl->name)-1);
3514                         break;
3515                 case V4L2_CID_CONTRAST:
3516                         strncpy(ctrl->name, "Contrast", sizeof(ctrl->name)-1);
3517                         break;
3518                 case V4L2_CID_SATURATION:
3519                         strncpy(ctrl->name, "Saturation", sizeof(ctrl->name)-1);
3520                         break;
3521                 case V4L2_CID_HUE:
3522                         strncpy(ctrl->name, "Hue", sizeof(ctrl->name)-1);
3523                         break;
3524                 }
3525
3526                 ctrl->minimum = 0;
3527                 ctrl->maximum = 65535;
3528                 ctrl->step = 1;
3529                 ctrl->default_value = 32768;
3530                 ctrl->type = V4L2_CTRL_TYPE_INTEGER;
3531
3532                 return 0;
3533         }
3534                 break;
3535
3536         case VIDIOC_G_CTRL:
3537         {
3538                 struct v4l2_control *ctrl = arg;
3539
3540                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_CTRL - id=%d\n",
3541                         ZR_DEVNAME(zr), ctrl->id);
3542
3543                 /* we only support hue/saturation/contrast/brightness */
3544                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3545                     ctrl->id > V4L2_CID_HUE)
3546                         return -EINVAL;
3547
3548                 mutex_lock(&zr->resource_lock);
3549                 switch (ctrl->id) {
3550                 case V4L2_CID_BRIGHTNESS:
3551                         ctrl->value = zr->brightness;
3552                         break;
3553                 case V4L2_CID_CONTRAST:
3554                         ctrl->value = zr->contrast;
3555                         break;
3556                 case V4L2_CID_SATURATION:
3557                         ctrl->value = zr->saturation;
3558                         break;
3559                 case V4L2_CID_HUE:
3560                         ctrl->value = zr->hue;
3561                         break;
3562                 }
3563                 mutex_unlock(&zr->resource_lock);
3564
3565                 return 0;
3566         }
3567                 break;
3568
3569         case VIDIOC_S_CTRL:
3570         {
3571                 struct v4l2_control *ctrl = arg;
3572                 struct video_picture pict;
3573
3574                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_CTRL - id=%d\n",
3575                         ZR_DEVNAME(zr), ctrl->id);
3576
3577                 /* we only support hue/saturation/contrast/brightness */
3578                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3579                     ctrl->id > V4L2_CID_HUE)
3580                         return -EINVAL;
3581
3582                 if (ctrl->value < 0 || ctrl->value > 65535) {
3583                         dprintk(1,
3584                                 KERN_ERR
3585                                 "%s: VIDIOC_S_CTRL - invalid value %d for id=%d\n",
3586                                 ZR_DEVNAME(zr), ctrl->value, ctrl->id);
3587                         return -EINVAL;
3588                 }
3589
3590                 mutex_lock(&zr->resource_lock);
3591                 switch (ctrl->id) {
3592                 case V4L2_CID_BRIGHTNESS:
3593                         zr->brightness = ctrl->value;
3594                         break;
3595                 case V4L2_CID_CONTRAST:
3596                         zr->contrast = ctrl->value;
3597                         break;
3598                 case V4L2_CID_SATURATION:
3599                         zr->saturation = ctrl->value;
3600                         break;
3601                 case V4L2_CID_HUE:
3602                         zr->hue = ctrl->value;
3603                         break;
3604                 }
3605                 pict.brightness = zr->brightness;
3606                 pict.contrast = zr->contrast;
3607                 pict.colour = zr->saturation;
3608                 pict.hue = zr->hue;
3609
3610                 decoder_command(zr, DECODER_SET_PICTURE, &pict);
3611
3612                 mutex_unlock(&zr->resource_lock);
3613
3614                 return 0;
3615         }
3616                 break;
3617
3618         case VIDIOC_ENUMSTD:
3619         {
3620                 struct v4l2_standard *std = arg;
3621
3622                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMSTD - index=%d\n",
3623                         ZR_DEVNAME(zr), std->index);
3624
3625                 if (std->index < 0 || std->index >= (zr->card.norms + 1))
3626                         return -EINVAL;
3627                 else {
3628                         int id = std->index;
3629                         memset(std, 0, sizeof(*std));
3630                         std->index = id;
3631                 }
3632
3633                 if (std->index == zr->card.norms) {
3634                         /* if we have autodetect, ... */
3635                         struct video_decoder_capability caps;
3636                         decoder_command(zr, DECODER_GET_CAPABILITIES,
3637                                         &caps);
3638                         if (caps.flags & VIDEO_DECODER_AUTO) {
3639                                 std->id = V4L2_STD_ALL;
3640                                 strncpy(std->name, "Autodetect", sizeof(std->name)-1);
3641                                 return 0;
3642                         } else
3643                                 return -EINVAL;
3644                 }
3645                 switch (std->index) {
3646                 case 0:
3647                         std->id = V4L2_STD_PAL;
3648                         strncpy(std->name, "PAL", sizeof(std->name)-1);
3649                         std->frameperiod.numerator = 1;
3650                         std->frameperiod.denominator = 25;
3651                         std->framelines = zr->card.tvn[0]->Ht;
3652                         break;
3653                 case 1:
3654                         std->id = V4L2_STD_NTSC;
3655                         strncpy(std->name, "NTSC", sizeof(std->name)-1);
3656                         std->frameperiod.numerator = 1001;
3657                         std->frameperiod.denominator = 30000;
3658                         std->framelines = zr->card.tvn[1]->Ht;
3659                         break;
3660                 case 2:
3661                         std->id = V4L2_STD_SECAM;
3662                         strncpy(std->name, "SECAM", sizeof(std->name)-1);
3663                         std->frameperiod.numerator = 1;
3664                         std->frameperiod.denominator = 25;
3665                         std->framelines = zr->card.tvn[2]->Ht;
3666                         break;
3667                 }
3668
3669                 return 0;
3670         }
3671                 break;
3672
3673         case VIDIOC_G_STD:
3674         {
3675                 v4l2_std_id *std = arg;
3676                 int norm;
3677
3678                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_STD\n", ZR_DEVNAME(zr));
3679
3680                 mutex_lock(&zr->resource_lock);
3681                 norm = zr->norm;
3682                 mutex_unlock(&zr->resource_lock);
3683
3684                 switch (norm) {
3685                 case VIDEO_MODE_PAL:
3686                         *std = V4L2_STD_PAL;
3687                         break;
3688                 case VIDEO_MODE_NTSC:
3689                         *std = V4L2_STD_NTSC;
3690                         break;
3691                 case VIDEO_MODE_SECAM:
3692                         *std = V4L2_STD_SECAM;
3693                         break;
3694                 }
3695
3696                 return 0;
3697         }
3698                 break;
3699
3700         case VIDIOC_S_STD:
3701         {
3702                 int norm = -1, res = 0;
3703                 v4l2_std_id *std = arg;
3704
3705                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_STD - norm=0x%llx\n",
3706                         ZR_DEVNAME(zr), (unsigned long long)*std);
3707
3708                 if ((*std & V4L2_STD_PAL) && !(*std & ~V4L2_STD_PAL))
3709                         norm = VIDEO_MODE_PAL;
3710                 else if ((*std & V4L2_STD_NTSC) && !(*std & ~V4L2_STD_NTSC))
3711                         norm = VIDEO_MODE_NTSC;
3712                 else if ((*std & V4L2_STD_SECAM) && !(*std & ~V4L2_STD_SECAM))
3713                         norm = VIDEO_MODE_SECAM;
3714                 else if (*std == V4L2_STD_ALL)
3715                         norm = VIDEO_MODE_AUTO;
3716                 else {
3717                         dprintk(1,
3718                                 KERN_ERR
3719                                 "%s: VIDIOC_S_STD - invalid norm 0x%llx\n",
3720                                 ZR_DEVNAME(zr), (unsigned long long)*std);
3721                         return -EINVAL;
3722                 }
3723
3724                 mutex_lock(&zr->resource_lock);
3725                 if ((res = zoran_set_norm(zr, norm)))
3726                         goto sstd_unlock_and_return;
3727
3728                 res = wait_grab_pending(zr);
3729         sstd_unlock_and_return:
3730                 mutex_unlock(&zr->resource_lock);
3731                 return res;
3732         }
3733                 break;
3734
3735         case VIDIOC_ENUMINPUT:
3736         {
3737                 struct v4l2_input *inp = arg;
3738                 int status;
3739
3740                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMINPUT - index=%d\n",
3741                         ZR_DEVNAME(zr), inp->index);
3742
3743                 if (inp->index < 0 || inp->index >= zr->card.inputs)
3744                         return -EINVAL;
3745                 else {
3746                         int id = inp->index;
3747                         memset(inp, 0, sizeof(*inp));
3748                         inp->index = id;
3749                 }
3750
3751                 strncpy(inp->name, zr->card.input[inp->index].name,
3752                         sizeof(inp->name) - 1);
3753                 inp->type = V4L2_INPUT_TYPE_CAMERA;
3754                 inp->std = V4L2_STD_ALL;
3755
3756                 /* Get status of video decoder */
3757                 mutex_lock(&zr->resource_lock);
3758                 decoder_command(zr, DECODER_GET_STATUS, &status);
3759                 mutex_unlock(&zr->resource_lock);
3760
3761                 if (!(status & DECODER_STATUS_GOOD)) {
3762                         inp->status |= V4L2_IN_ST_NO_POWER;
3763                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
3764                 }
3765                 if (!(status & DECODER_STATUS_COLOR))
3766                         inp->status |= V4L2_IN_ST_NO_COLOR;
3767
3768                 return 0;
3769         }
3770                 break;
3771
3772         case VIDIOC_G_INPUT:
3773         {
3774                 int *input = arg;
3775
3776                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_INPUT\n", ZR_DEVNAME(zr));
3777
3778                 mutex_lock(&zr->resource_lock);
3779                 *input = zr->input;
3780                 mutex_unlock(&zr->resource_lock);
3781
3782                 return 0;
3783         }
3784                 break;
3785
3786         case VIDIOC_S_INPUT:
3787         {
3788                 int *input = arg, res = 0;
3789
3790                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_INPUT - input=%d\n",
3791                         ZR_DEVNAME(zr), *input);
3792
3793                 mutex_lock(&zr->resource_lock);
3794                 if ((res = zoran_set_input(zr, *input)))
3795                         goto sinput_unlock_and_return;
3796
3797                 /* Make sure the changes come into effect */
3798                 res = wait_grab_pending(zr);
3799         sinput_unlock_and_return:
3800                 mutex_unlock(&zr->resource_lock);
3801                 return res;
3802         }
3803                 break;
3804
3805         case VIDIOC_ENUMOUTPUT:
3806         {
3807                 struct v4l2_output *outp = arg;
3808
3809                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMOUTPUT - index=%d\n",
3810                         ZR_DEVNAME(zr), outp->index);
3811
3812                 if (outp->index != 0)
3813                         return -EINVAL;
3814
3815                 memset(outp, 0, sizeof(*outp));
3816                 outp->index = 0;
3817                 outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
3818                 strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
3819
3820                 return 0;
3821         }
3822                 break;
3823
3824         case VIDIOC_G_OUTPUT:
3825         {
3826                 int *output = arg;
3827
3828                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_OUTPUT\n", ZR_DEVNAME(zr));
3829
3830                 *output = 0;
3831
3832                 return 0;
3833         }
3834                 break;
3835
3836         case VIDIOC_S_OUTPUT:
3837         {
3838                 int *output = arg;
3839
3840                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_OUTPUT - output=%d\n",
3841                         ZR_DEVNAME(zr), *output);
3842
3843                 if (*output != 0)
3844                         return -EINVAL;
3845
3846                 return 0;
3847         }
3848                 break;
3849
3850                 /* cropping (sub-frame capture) */
3851         case VIDIOC_CROPCAP:
3852         {
3853                 struct v4l2_cropcap *cropcap = arg;
3854                 int type = cropcap->type, res = 0;
3855
3856                 dprintk(3, KERN_ERR "%s: VIDIOC_CROPCAP - type=%d\n",
3857                         ZR_DEVNAME(zr), cropcap->type);
3858
3859                 memset(cropcap, 0, sizeof(*cropcap));
3860                 cropcap->type = type;
3861
3862                 mutex_lock(&zr->resource_lock);
3863
3864                 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3865                     (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3866                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3867                         dprintk(1,
3868                                 KERN_ERR
3869                                 "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
3870                                 ZR_DEVNAME(zr));
3871                         res = -EINVAL;
3872                         goto cropcap_unlock_and_return;
3873                 }
3874
3875                 cropcap->bounds.top = cropcap->bounds.left = 0;
3876                 cropcap->bounds.width = BUZ_MAX_WIDTH;
3877                 cropcap->bounds.height = BUZ_MAX_HEIGHT;
3878                 cropcap->defrect.top = cropcap->defrect.left = 0;
3879                 cropcap->defrect.width = BUZ_MIN_WIDTH;
3880                 cropcap->defrect.height = BUZ_MIN_HEIGHT;
3881         cropcap_unlock_and_return:
3882                 mutex_unlock(&zr->resource_lock);
3883                 return res;
3884         }
3885                 break;
3886
3887         case VIDIOC_G_CROP:
3888         {
3889                 struct v4l2_crop *crop = arg;
3890                 int type = crop->type, res = 0;
3891
3892                 dprintk(3, KERN_ERR "%s: VIDIOC_G_CROP - type=%d\n",
3893                         ZR_DEVNAME(zr), crop->type);
3894
3895                 memset(crop, 0, sizeof(*crop));
3896                 crop->type = type;
3897
3898                 mutex_lock(&zr->resource_lock);
3899
3900                 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3901                     (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3902                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3903                         dprintk(1,
3904                                 KERN_ERR
3905                                 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3906                                 ZR_DEVNAME(zr));
3907                         res = -EINVAL;
3908                         goto gcrop_unlock_and_return;
3909                 }
3910
3911                 crop->c.top = fh->jpg_settings.img_y;
3912                 crop->c.left = fh->jpg_settings.img_x;
3913                 crop->c.width = fh->jpg_settings.img_width;
3914                 crop->c.height = fh->jpg_settings.img_height;
3915
3916         gcrop_unlock_and_return:
3917                 mutex_unlock(&zr->resource_lock);
3918
3919                 return res;
3920         }
3921                 break;
3922
3923         case VIDIOC_S_CROP:
3924         {
3925                 struct v4l2_crop *crop = arg;
3926                 int res = 0;
3927
3928                 settings = fh->jpg_settings;
3929
3930                 dprintk(3,
3931                         KERN_ERR
3932                         "%s: VIDIOC_S_CROP - type=%d, x=%d,y=%d,w=%d,h=%d\n",
3933                         ZR_DEVNAME(zr), crop->type, crop->c.left, crop->c.top,
3934                         crop->c.width, crop->c.height);
3935
3936                 mutex_lock(&zr->resource_lock);
3937
3938                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
3939                         dprintk(1,
3940                                 KERN_ERR
3941                                 "%s: VIDIOC_S_CROP - cannot change settings while active\n",
3942                                 ZR_DEVNAME(zr));
3943                         res = -EBUSY;
3944                         goto scrop_unlock_and_return;
3945                 }
3946
3947                 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3948                     (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3949                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3950                         dprintk(1,
3951                                 KERN_ERR
3952                                 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3953                                 ZR_DEVNAME(zr));
3954                         res = -EINVAL;
3955                         goto scrop_unlock_and_return;
3956                 }
3957
3958                 /* move into a form that we understand */
3959                 settings.img_x = crop->c.left;
3960                 settings.img_y = crop->c.top;
3961                 settings.img_width = crop->c.width;
3962                 settings.img_height = crop->c.height;
3963
3964                 /* check validity */
3965                 if ((res = zoran_check_jpg_settings(zr, &settings)))
3966                         goto scrop_unlock_and_return;
3967
3968                 /* accept */
3969                 fh->jpg_settings = settings;
3970
3971         scrop_unlock_and_return:
3972                 mutex_unlock(&zr->resource_lock);
3973                 return res;
3974         }
3975                 break;
3976
3977         case VIDIOC_G_JPEGCOMP:
3978         {
3979                 struct v4l2_jpegcompression *params = arg;
3980
3981                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_JPEGCOMP\n",
3982                         ZR_DEVNAME(zr));
3983
3984                 memset(params, 0, sizeof(*params));
3985
3986                 mutex_lock(&zr->resource_lock);
3987
3988                 params->quality = fh->jpg_settings.jpg_comp.quality;
3989                 params->APPn = fh->jpg_settings.jpg_comp.APPn;
3990                 memcpy(params->APP_data,
3991                        fh->jpg_settings.jpg_comp.APP_data,
3992                        fh->jpg_settings.jpg_comp.APP_len);
3993                 params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
3994                 memcpy(params->COM_data,
3995                        fh->jpg_settings.jpg_comp.COM_data,
3996                        fh->jpg_settings.jpg_comp.COM_len);
3997                 params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
3998                 params->jpeg_markers =
3999                     fh->jpg_settings.jpg_comp.jpeg_markers;
4000
4001                 mutex_unlock(&zr->resource_lock);
4002
4003                 return 0;
4004         }
4005                 break;
4006
4007         case VIDIOC_S_JPEGCOMP:
4008         {
4009                 struct v4l2_jpegcompression *params = arg;
4010                 int res = 0;
4011
4012                 settings = fh->jpg_settings;
4013
4014                 dprintk(3,
4015                         KERN_DEBUG
4016                         "%s: VIDIOC_S_JPEGCOMP - quality=%d, APPN=%d, APP_len=%d, COM_len=%d\n",
4017                         ZR_DEVNAME(zr), params->quality, params->APPn,
4018                         params->APP_len, params->COM_len);
4019
4020                 settings.jpg_comp = *params;
4021
4022                 mutex_lock(&zr->resource_lock);
4023
4024                 if (fh->v4l_buffers.active != ZORAN_FREE ||
4025                     fh->jpg_buffers.active != ZORAN_FREE) {
4026                         dprintk(1,
4027                                 KERN_WARNING
4028                                 "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
4029                                 ZR_DEVNAME(zr));
4030                         res = -EBUSY;
4031                         goto sjpegc_unlock_and_return;
4032                 }
4033
4034                 if ((res = zoran_check_jpg_settings(zr, &settings)))
4035                         goto sjpegc_unlock_and_return;
4036                 if (!fh->jpg_buffers.allocated)
4037                         fh->jpg_buffers.buffer_size =
4038                             zoran_v4l2_calc_bufsize(&fh->jpg_settings);
4039                 fh->jpg_settings.jpg_comp = *params = settings.jpg_comp;
4040         sjpegc_unlock_and_return:
4041                 mutex_unlock(&zr->resource_lock);
4042
4043                 return 0;
4044         }
4045                 break;
4046
4047         case VIDIOC_QUERYSTD:   /* why is this useful? */
4048         {
4049                 v4l2_std_id *std = arg;
4050
4051                 dprintk(3,
4052                         KERN_DEBUG "%s: VIDIOC_QUERY_STD - std=0x%llx\n",
4053                         ZR_DEVNAME(zr), (unsigned long long)*std);
4054
4055                 if (*std == V4L2_STD_ALL || *std == V4L2_STD_NTSC ||
4056                     *std == V4L2_STD_PAL || (*std == V4L2_STD_SECAM &&
4057                                              zr->card.norms == 3)) {
4058                         return 0;
4059                 }
4060
4061                 return -EINVAL;
4062         }
4063                 break;
4064
4065         case VIDIOC_TRY_FMT:
4066         {
4067                 struct v4l2_format *fmt = arg;
4068                 int res = 0;
4069
4070                 dprintk(3, KERN_DEBUG "%s: VIDIOC_TRY_FMT - type=%d\n",
4071                         ZR_DEVNAME(zr), fmt->type);
4072
4073                 switch (fmt->type) {
4074                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4075                         mutex_lock(&zr->resource_lock);
4076
4077                         if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
4078                                 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
4079                         if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
4080                                 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
4081                         if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
4082                                 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
4083                         if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
4084                                 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
4085
4086                         mutex_unlock(&zr->resource_lock);
4087                         break;
4088
4089                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
4090                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4091                         if (fmt->fmt.pix.bytesperline > 0)
4092                                 return -EINVAL;
4093
4094                         mutex_lock(&zr->resource_lock);
4095
4096                         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
4097                                 settings = fh->jpg_settings;
4098
4099                                 /* we actually need to set 'real' parameters now */
4100                                 if ((fmt->fmt.pix.height * 2) >
4101                                     BUZ_MAX_HEIGHT)
4102                                         settings.TmpDcm = 1;
4103                                 else
4104                                         settings.TmpDcm = 2;
4105                                 settings.decimation = 0;
4106                                 if (fmt->fmt.pix.height <=
4107                                     fh->jpg_settings.img_height / 2)
4108                                         settings.VerDcm = 2;
4109                                 else
4110                                         settings.VerDcm = 1;
4111                                 if (fmt->fmt.pix.width <=
4112                                     fh->jpg_settings.img_width / 4)
4113                                         settings.HorDcm = 4;
4114                                 else if (fmt->fmt.pix.width <=
4115                                          fh->jpg_settings.img_width / 2)
4116                                         settings.HorDcm = 2;
4117                                 else
4118                                         settings.HorDcm = 1;
4119                                 if (settings.TmpDcm == 1)
4120                                         settings.field_per_buff = 2;
4121                                 else
4122                                         settings.field_per_buff = 1;
4123
4124                                 /* check */
4125                                 if ((res =
4126                                      zoran_check_jpg_settings(zr,
4127                                                               &settings)))
4128                                         goto tryfmt_unlock_and_return;
4129
4130                                 /* tell the user what we actually did */
4131                                 fmt->fmt.pix.width =
4132                                     settings.img_width / settings.HorDcm;
4133                                 fmt->fmt.pix.height =
4134                                     settings.img_height * 2 /
4135                                     (settings.TmpDcm * settings.VerDcm);
4136                                 if (settings.TmpDcm == 1)
4137                                         fmt->fmt.pix.field =
4138                                             (fh->jpg_settings.
4139                                              odd_even ? V4L2_FIELD_SEQ_TB :
4140                                              V4L2_FIELD_SEQ_BT);
4141                                 else
4142                                         fmt->fmt.pix.field =
4143                                             (fh->jpg_settings.
4144                                              odd_even ? V4L2_FIELD_TOP :
4145                                              V4L2_FIELD_BOTTOM);
4146
4147                                 fmt->fmt.pix.sizeimage =
4148                                     zoran_v4l2_calc_bufsize(&settings);
4149                         } else if (fmt->type ==
4150                                    V4L2_BUF_TYPE_VIDEO_CAPTURE) {
4151                                 int i;
4152
4153                                 for (i = 0; i < NUM_FORMATS; i++)
4154                                         if (zoran_formats[i].fourcc ==
4155                                             fmt->fmt.pix.pixelformat)
4156                                                 break;
4157                                 if (i == NUM_FORMATS) {
4158                                         res = -EINVAL;
4159                                         goto tryfmt_unlock_and_return;
4160                                 }
4161
4162                                 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
4163                                         fmt->fmt.pix.width = BUZ_MAX_WIDTH;
4164                                 if (fmt->fmt.pix.width < BUZ_MIN_WIDTH)
4165                                         fmt->fmt.pix.width = BUZ_MIN_WIDTH;
4166                                 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
4167                                         fmt->fmt.pix.height =
4168                                             BUZ_MAX_HEIGHT;
4169                                 if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT)
4170                                         fmt->fmt.pix.height =
4171                                             BUZ_MIN_HEIGHT;
4172                         } else {
4173                                 res = -EINVAL;
4174                                 goto tryfmt_unlock_and_return;
4175                         }
4176                 tryfmt_unlock_and_return:
4177                         mutex_unlock(&zr->resource_lock);
4178
4179                         return res;
4180                         break;
4181
4182                 default:
4183                         return -EINVAL;
4184                 }
4185
4186                 return 0;
4187         }
4188                 break;
4189
4190         default:
4191                 dprintk(1, KERN_DEBUG "%s: UNKNOWN ioctl cmd: 0x%x\n",
4192                         ZR_DEVNAME(zr), cmd);
4193                 return -ENOIOCTLCMD;
4194                 break;
4195
4196         }
4197         return 0;
4198 }
4199
4200
4201 static int
4202 zoran_ioctl (struct inode *inode,
4203              struct file  *file,
4204              unsigned int  cmd,
4205              unsigned long arg)
4206 {
4207         return video_usercopy(inode, file, cmd, arg, zoran_do_ioctl);
4208 }
4209
4210 static unsigned int
4211 zoran_poll (struct file *file,
4212             poll_table  *wait)
4213 {
4214         struct zoran_fh *fh = file->private_data;
4215         struct zoran *zr = fh->zr;
4216         int res = 0, frame;
4217         unsigned long flags;
4218
4219         /* we should check whether buffers are ready to be synced on
4220          * (w/o waits - O_NONBLOCK) here
4221          * if ready for read (sync), return POLLIN|POLLRDNORM,
4222          * if ready for write (sync), return POLLOUT|POLLWRNORM,
4223          * if error, return POLLERR,
4224          * if no buffers queued or so, return POLLNVAL
4225          */
4226
4227         mutex_lock(&zr->resource_lock);
4228
4229         switch (fh->map_mode) {
4230         case ZORAN_MAP_MODE_RAW:
4231                 poll_wait(file, &zr->v4l_capq, wait);
4232                 frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
4233
4234                 spin_lock_irqsave(&zr->spinlock, flags);
4235                 dprintk(3,
4236                         KERN_DEBUG
4237                         "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
4238                         ZR_DEVNAME(zr), __func__,
4239                         "FAL"[fh->v4l_buffers.active], zr->v4l_sync_tail,
4240                         "UPMD"[zr->v4l_buffers.buffer[frame].state],
4241                         zr->v4l_pend_tail, zr->v4l_pend_head);
4242                 /* Process is the one capturing? */
4243                 if (fh->v4l_buffers.active != ZORAN_FREE &&
4244                     /* Buffer ready to DQBUF? */
4245                     zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
4246                         res = POLLIN | POLLRDNORM;
4247                 spin_unlock_irqrestore(&zr->spinlock, flags);
4248
4249                 break;
4250
4251         case ZORAN_MAP_MODE_JPG_REC:
4252         case ZORAN_MAP_MODE_JPG_PLAY:
4253                 poll_wait(file, &zr->jpg_capq, wait);
4254                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
4255
4256                 spin_lock_irqsave(&zr->spinlock, flags);
4257                 dprintk(3,
4258                         KERN_DEBUG
4259                         "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
4260                         ZR_DEVNAME(zr), __func__,
4261                         "FAL"[fh->jpg_buffers.active], zr->jpg_que_tail,
4262                         "UPMD"[zr->jpg_buffers.buffer[frame].state],
4263                         zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
4264                 if (fh->jpg_buffers.active != ZORAN_FREE &&
4265                     zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
4266                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
4267                                 res = POLLIN | POLLRDNORM;
4268                         else
4269                                 res = POLLOUT | POLLWRNORM;
4270                 }
4271                 spin_unlock_irqrestore(&zr->spinlock, flags);
4272
4273                 break;
4274
4275         default:
4276                 dprintk(1,
4277                         KERN_ERR
4278                         "%s: zoran_poll() - internal error, unknown map_mode=%d\n",
4279                         ZR_DEVNAME(zr), fh->map_mode);
4280                 res = POLLNVAL;
4281         }
4282
4283         mutex_unlock(&zr->resource_lock);
4284
4285         return res;
4286 }
4287
4288
4289 /*
4290  * This maps the buffers to user space.
4291  *
4292  * Depending on the state of fh->map_mode
4293  * the V4L or the MJPEG buffers are mapped
4294  * per buffer or all together
4295  *
4296  * Note that we need to connect to some
4297  * unmap signal event to unmap the de-allocate
4298  * the buffer accordingly (zoran_vm_close())
4299  */
4300
4301 static void
4302 zoran_vm_open (struct vm_area_struct *vma)
4303 {
4304         struct zoran_mapping *map = vma->vm_private_data;
4305
4306         map->count++;
4307 }
4308
4309 static void
4310 zoran_vm_close (struct vm_area_struct *vma)
4311 {
4312         struct zoran_mapping *map = vma->vm_private_data;
4313         struct file *file = map->file;
4314         struct zoran_fh *fh = file->private_data;
4315         struct zoran *zr = fh->zr;
4316         int i;
4317
4318         map->count--;
4319         if (map->count == 0) {
4320                 switch (fh->map_mode) {
4321                 case ZORAN_MAP_MODE_JPG_REC:
4322                 case ZORAN_MAP_MODE_JPG_PLAY:
4323
4324                         dprintk(3, KERN_INFO "%s: munmap(MJPEG)\n",
4325                                 ZR_DEVNAME(zr));
4326
4327                         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
4328                                 if (fh->jpg_buffers.buffer[i].map == map) {
4329                                         fh->jpg_buffers.buffer[i].map =
4330                                             NULL;
4331                                 }
4332                         }
4333                         kfree(map);
4334
4335                         for (i = 0; i < fh->jpg_buffers.num_buffers; i++)
4336                                 if (fh->jpg_buffers.buffer[i].map)
4337                                         break;
4338                         if (i == fh->jpg_buffers.num_buffers) {
4339                                 mutex_lock(&zr->resource_lock);
4340
4341                                 if (fh->jpg_buffers.active != ZORAN_FREE) {
4342                                         jpg_qbuf(file, -1, zr->codec_mode);
4343                                         zr->jpg_buffers.allocated = 0;
4344                                         zr->jpg_buffers.active =
4345                                             fh->jpg_buffers.active =
4346                                             ZORAN_FREE;
4347                                 }
4348                                 //jpg_fbuffer_free(file);
4349                                 fh->jpg_buffers.allocated = 0;
4350                                 fh->jpg_buffers.ready_to_be_freed = 1;
4351
4352                                 mutex_unlock(&zr->resource_lock);
4353                         }
4354
4355                         break;
4356
4357                 case ZORAN_MAP_MODE_RAW:
4358
4359                         dprintk(3, KERN_INFO "%s: munmap(V4L)\n",
4360                                 ZR_DEVNAME(zr));
4361
4362                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
4363                                 if (fh->v4l_buffers.buffer[i].map == map) {
4364                                         /* unqueue/unmap */
4365                                         fh->v4l_buffers.buffer[i].map =
4366                                             NULL;
4367                                 }
4368                         }
4369                         kfree(map);
4370
4371                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
4372                                 if (fh->v4l_buffers.buffer[i].map)
4373                                         break;
4374                         if (i == fh->v4l_buffers.num_buffers) {
4375                                 mutex_lock(&zr->resource_lock);
4376
4377                                 if (fh->v4l_buffers.active != ZORAN_FREE) {
4378                                         unsigned long flags;
4379
4380                                         spin_lock_irqsave(&zr->spinlock, flags);
4381                                         zr36057_set_memgrab(zr, 0);
4382                                         zr->v4l_buffers.allocated = 0;
4383                                         zr->v4l_buffers.active =
4384                                             fh->v4l_buffers.active =
4385                                             ZORAN_FREE;
4386                                         spin_unlock_irqrestore(&zr->spinlock, flags);
4387                                 }
4388                                 //v4l_fbuffer_free(file);
4389                                 fh->v4l_buffers.allocated = 0;
4390                                 fh->v4l_buffers.ready_to_be_freed = 1;
4391
4392                                 mutex_unlock(&zr->resource_lock);
4393                         }
4394
4395                         break;
4396
4397                 default:
4398                         printk(KERN_ERR
4399                                "%s: munmap() - internal error - unknown map mode %d\n",
4400                                ZR_DEVNAME(zr), fh->map_mode);
4401                         break;
4402
4403                 }
4404         }
4405 }
4406
4407 static struct vm_operations_struct zoran_vm_ops = {
4408         .open = zoran_vm_open,
4409         .close = zoran_vm_close,
4410 };
4411
4412 static int
4413 zoran_mmap (struct file           *file,
4414             struct vm_area_struct *vma)
4415 {
4416         struct zoran_fh *fh = file->private_data;
4417         struct zoran *zr = fh->zr;
4418         unsigned long size = (vma->vm_end - vma->vm_start);
4419         unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
4420         int i, j;
4421         unsigned long page, start = vma->vm_start, todo, pos, fraglen;
4422         int first, last;
4423         struct zoran_mapping *map;
4424         int res = 0;
4425
4426         dprintk(3,
4427                 KERN_INFO "%s: mmap(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
4428                 ZR_DEVNAME(zr),
4429                 fh->map_mode == ZORAN_MAP_MODE_RAW ? "V4L" : "MJPEG",
4430                 vma->vm_start, vma->vm_end, size);
4431
4432         if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
4433             !(vma->vm_flags & VM_WRITE)) {
4434                 dprintk(1,
4435                         KERN_ERR
4436                         "%s: mmap() - no MAP_SHARED/PROT_{READ,WRITE} given\n",
4437                         ZR_DEVNAME(zr));
4438                 return -EINVAL;
4439         }
4440
4441         switch (fh->map_mode) {
4442
4443         case ZORAN_MAP_MODE_JPG_REC:
4444         case ZORAN_MAP_MODE_JPG_PLAY:
4445
4446                 /* lock */
4447                 mutex_lock(&zr->resource_lock);
4448
4449                 /* Map the MJPEG buffers */
4450                 if (!fh->jpg_buffers.allocated) {
4451                         dprintk(1,
4452                                 KERN_ERR
4453                                 "%s: zoran_mmap(MJPEG) - buffers not yet allocated\n",
4454                                 ZR_DEVNAME(zr));
4455                         res = -ENOMEM;
4456                         goto jpg_mmap_unlock_and_return;
4457                 }
4458
4459                 first = offset / fh->jpg_buffers.buffer_size;
4460                 last = first - 1 + size / fh->jpg_buffers.buffer_size;
4461                 if (offset % fh->jpg_buffers.buffer_size != 0 ||
4462                     size % fh->jpg_buffers.buffer_size != 0 || first < 0 ||
4463                     last < 0 || first >= fh->jpg_buffers.num_buffers ||
4464                     last >= fh->jpg_buffers.num_buffers) {
4465                         dprintk(1,
4466                                 KERN_ERR
4467                                 "%s: mmap(MJPEG) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4468                                 ZR_DEVNAME(zr), offset, size,
4469                                 fh->jpg_buffers.buffer_size,
4470                                 fh->jpg_buffers.num_buffers);
4471                         res = -EINVAL;
4472                         goto jpg_mmap_unlock_and_return;
4473                 }
4474                 for (i = first; i <= last; i++) {
4475                         if (fh->jpg_buffers.buffer[i].map) {
4476                                 dprintk(1,
4477                                         KERN_ERR
4478                                         "%s: mmap(MJPEG) - buffer %d already mapped\n",
4479                                         ZR_DEVNAME(zr), i);
4480                                 res = -EBUSY;
4481                                 goto jpg_mmap_unlock_and_return;
4482                         }
4483                 }
4484
4485                 /* map these buffers (v4l_buffers[i]) */
4486                 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4487                 if (!map) {
4488                         res = -ENOMEM;
4489                         goto jpg_mmap_unlock_and_return;
4490                 }
4491                 map->file = file;
4492                 map->count = 1;
4493
4494                 vma->vm_ops = &zoran_vm_ops;
4495                 vma->vm_flags |= VM_DONTEXPAND;
4496                 vma->vm_private_data = map;
4497
4498                 for (i = first; i <= last; i++) {
4499                         for (j = 0;
4500                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
4501                              j++) {
4502                                 fraglen =
4503                                     (le32_to_cpu(fh->jpg_buffers.buffer[i].
4504                                      frag_tab[2 * j + 1]) & ~1) << 1;
4505                                 todo = size;
4506                                 if (todo > fraglen)
4507                                         todo = fraglen;
4508                                 pos =
4509                                     le32_to_cpu(fh->jpg_buffers.
4510                                     buffer[i].frag_tab[2 * j]);
4511                                 /* should just be pos on i386 */
4512                                 page = virt_to_phys(bus_to_virt(pos))
4513                                                                 >> PAGE_SHIFT;
4514                                 if (remap_pfn_range(vma, start, page,
4515                                                         todo, PAGE_SHARED)) {
4516                                         dprintk(1,
4517                                                 KERN_ERR
4518                                                 "%s: zoran_mmap(V4L) - remap_pfn_range failed\n",
4519                                                 ZR_DEVNAME(zr));
4520                                         res = -EAGAIN;
4521                                         goto jpg_mmap_unlock_and_return;
4522                                 }
4523                                 size -= todo;
4524                                 start += todo;
4525                                 if (size == 0)
4526                                         break;
4527                                 if (le32_to_cpu(fh->jpg_buffers.buffer[i].
4528                                     frag_tab[2 * j + 1]) & 1)
4529                                         break;  /* was last fragment */
4530                         }
4531                         fh->jpg_buffers.buffer[i].map = map;
4532                         if (size == 0)
4533                                 break;
4534
4535                 }
4536         jpg_mmap_unlock_and_return:
4537                 mutex_unlock(&zr->resource_lock);
4538
4539                 break;
4540
4541         case ZORAN_MAP_MODE_RAW:
4542
4543                 mutex_lock(&zr->resource_lock);
4544
4545                 /* Map the V4L buffers */
4546                 if (!fh->v4l_buffers.allocated) {
4547                         dprintk(1,
4548                                 KERN_ERR
4549                                 "%s: zoran_mmap(V4L) - buffers not yet allocated\n",
4550                                 ZR_DEVNAME(zr));
4551                         res = -ENOMEM;
4552                         goto v4l_mmap_unlock_and_return;
4553                 }
4554
4555                 first = offset / fh->v4l_buffers.buffer_size;
4556                 last = first - 1 + size / fh->v4l_buffers.buffer_size;
4557                 if (offset % fh->v4l_buffers.buffer_size != 0 ||
4558                     size % fh->v4l_buffers.buffer_size != 0 || first < 0 ||
4559                     last < 0 || first >= fh->v4l_buffers.num_buffers ||
4560                     last >= fh->v4l_buffers.buffer_size) {
4561                         dprintk(1,
4562                                 KERN_ERR
4563                                 "%s: mmap(V4L) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4564                                 ZR_DEVNAME(zr), offset, size,
4565                                 fh->v4l_buffers.buffer_size,
4566                                 fh->v4l_buffers.num_buffers);
4567                         res = -EINVAL;
4568                         goto v4l_mmap_unlock_and_return;
4569                 }
4570                 for (i = first; i <= last; i++) {
4571                         if (fh->v4l_buffers.buffer[i].map) {
4572                                 dprintk(1,
4573                                         KERN_ERR
4574                                         "%s: mmap(V4L) - buffer %d already mapped\n",
4575                                         ZR_DEVNAME(zr), i);
4576                                 res = -EBUSY;
4577                                 goto v4l_mmap_unlock_and_return;
4578                         }
4579                 }
4580
4581                 /* map these buffers (v4l_buffers[i]) */
4582                 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4583                 if (!map) {
4584                         res = -ENOMEM;
4585                         goto v4l_mmap_unlock_and_return;
4586                 }
4587                 map->file = file;
4588                 map->count = 1;
4589
4590                 vma->vm_ops = &zoran_vm_ops;
4591                 vma->vm_flags |= VM_DONTEXPAND;
4592                 vma->vm_private_data = map;
4593
4594                 for (i = first; i <= last; i++) {
4595                         todo = size;
4596                         if (todo > fh->v4l_buffers.buffer_size)
4597                                 todo = fh->v4l_buffers.buffer_size;
4598                         page = fh->v4l_buffers.buffer[i].fbuffer_phys;
4599                         if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
4600                                                         todo, PAGE_SHARED)) {
4601                                 dprintk(1,
4602                                         KERN_ERR
4603                                         "%s: zoran_mmap(V4L)i - remap_pfn_range failed\n",
4604                                         ZR_DEVNAME(zr));
4605                                 res = -EAGAIN;
4606                                 goto v4l_mmap_unlock_and_return;
4607                         }
4608                         size -= todo;
4609                         start += todo;
4610                         fh->v4l_buffers.buffer[i].map = map;
4611                         if (size == 0)
4612                                 break;
4613                 }
4614         v4l_mmap_unlock_and_return:
4615                 mutex_unlock(&zr->resource_lock);
4616
4617                 break;
4618
4619         default:
4620                 dprintk(1,
4621                         KERN_ERR
4622                         "%s: zoran_mmap() - internal error - unknown map mode %d\n",
4623                         ZR_DEVNAME(zr), fh->map_mode);
4624                 break;
4625         }
4626
4627         return 0;
4628 }
4629
4630 static const struct file_operations zoran_fops = {
4631         .owner = THIS_MODULE,
4632         .open = zoran_open,
4633         .release = zoran_close,
4634         .ioctl = zoran_ioctl,
4635 #ifdef CONFIG_COMPAT
4636         .compat_ioctl   = v4l_compat_ioctl32,
4637 #endif
4638         .llseek = no_llseek,
4639         .read = zoran_read,
4640         .write = zoran_write,
4641         .mmap = zoran_mmap,
4642         .poll = zoran_poll,
4643 };
4644
4645 struct video_device zoran_template __devinitdata = {
4646         .name = ZORAN_NAME,
4647         .type = ZORAN_VID_TYPE,
4648         .type2 = ZORAN_V4L2_VID_FLAGS,
4649         .fops = &zoran_fops,
4650         .release = &zoran_vdev_release,
4651         .minor = -1
4652 };
4653