drivers/media/video/zoran_driver.c

   1 /*
   2  * Zoran zr36057/zr36067 PCI controller driver, for the
   3  * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux
   4  * Media Labs LML33/LML33R10.
   5  *
   6  * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
   7  *
   8  * Changes for BUZ by Wolfgang Scherr <scherr@net4you.net>
   9  *
  10  * Changes for DC10/DC30 by Laurent Pinchart <laurent.pinchart@skynet.be>
  11  *
  12  * Changes for LML33R10 by Maxim Yevtyushkin <max@linuxmedialabs.com>
  13  *
  14  * Changes for videodev2/v4l2 by Ronald Bultje <rbultje@ronald.bitfreak.net>
  15  *
  16  * Based on
  17  *
  18  * Miro DC10 driver
  19  * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
  20  *
  21  * Iomega Buz driver version 1.0
  22  * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de>
  23  *
  24  * buz.0.0.3
  25  * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
  26  *
  27  * bttv - Bt848 frame grabber driver
  28  * Copyright (C) 1996,97,98 Ralph  Metzler (rjkm@thp.uni-koeln.de)
  29  *                        & Marcus Metzler (mocm@thp.uni-koeln.de)
  30  *
  31  *
  32  * This program is free software; you can redistribute it and/or modify
  33  * it under the terms of the GNU General Public License as published by
  34  * the Free Software Foundation; either version 2 of the License, or
  35  * (at your option) any later version.
  36  *
  37  * This program is distributed in the hope that it will be useful,
  38  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  39  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  40  * GNU General Public License for more details.
  41  *
  42  * You should have received a copy of the GNU General Public License
  43  * along with this program; if not, write to the Free Software
  44  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  45  */
  46
  47 #include <linux/version.h>
  48 #include <linux/init.h>
  49 #include <linux/module.h>
  50 #include <linux/delay.h>
  51 #include <linux/slab.h>
  52 #include <linux/pci.h>
  53 #include <linux/vmalloc.h>
  54 #include <linux/wait.h>
  55 #include <linux/byteorder/generic.h>
  56
  57 #include <linux/interrupt.h>
  58 #include <linux/i2c.h>
  59 #include <linux/i2c-algo-bit.h>
  60
  61 #include <linux/spinlock.h>
  62 #define     MAP_NR(x)       virt_to_page(x)
  63 #define     ZORAN_HARDWARE  VID_HARDWARE_ZR36067
  64 #define     ZORAN_VID_TYPE  ( \
  65                                 VID_TYPE_CAPTURE | \
  66                                 VID_TYPE_OVERLAY | \
  67                                 VID_TYPE_CLIPPING | \
  68                                 VID_TYPE_FRAMERAM | \
  69                                 VID_TYPE_SCALES | \
  70                                 VID_TYPE_MJPEG_DECODER | \
  71                                 VID_TYPE_MJPEG_ENCODER \
  72                              )
  73
  74 #include <linux/videodev.h>
  75 #include <media/v4l2-common.h>
  76 #include "videocodec.h"
  77
  78 #include <asm/io.h>
  79 #include <asm/uaccess.h>
  80 #include <linux/proc_fs.h>
  81
  82 #include <linux/video_decoder.h>
  83 #include <linux/video_encoder.h>
  84 #include <linux/mutex.h>
  85 #include "zoran.h"
  86 #include "zoran_device.h"
  87 #include "zoran_card.h"
  88
  89 #ifdef CONFIG_VIDEO_V4L2
  90         /* we declare some card type definitions here, they mean
  91          * the same as the v4l1 ZORAN_VID_TYPE above, except it's v4l2 */
  92 #define ZORAN_V4L2_VID_FLAGS ( \
  93                                 V4L2_CAP_STREAMING |\
  94                                 V4L2_CAP_VIDEO_CAPTURE |\
  95                                 V4L2_CAP_VIDEO_OUTPUT |\
  96                                 V4L2_CAP_VIDEO_OVERLAY \
  97                               )
  98 #endif
  99
 100 #include <asm/byteorder.h>
 101
 102 #if defined(CONFIG_VIDEO_V4L2) && defined(CONFIG_VIDEO_V4L1_COMPAT)
 103 #define ZFMT(pal, fcc, cs) \
 104         .palette = (pal), .fourcc = (fcc), .colorspace = (cs)
 105 #elif defined(CONFIG_VIDEO_V4L2)
 106 #define ZFMT(pal, fcc, cs) \
 107         .fourcc = (fcc), .colorspace = (cs)
 108 #else
 109 #define ZFMT(pal, fcc, cs) \
 110         .palette = (pal)
 111 #endif
 112
 113 const struct zoran_format zoran_formats[] = {
 114         {
 115                 .name = "15-bit RGB LE",
 116                 ZFMT(VIDEO_PALETTE_RGB555,
 117                      V4L2_PIX_FMT_RGB555, V4L2_COLORSPACE_SRGB),
 118                 .depth = 15,
 119                 .flags = ZORAN_FORMAT_CAPTURE |
 120                          ZORAN_FORMAT_OVERLAY,
 121                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif|
 122                            ZR36057_VFESPFR_LittleEndian,
 123         }, {
 124                 .name = "15-bit RGB BE",
 125                 ZFMT(-1,
 126                      V4L2_PIX_FMT_RGB555X, V4L2_COLORSPACE_SRGB),
 127                 .depth = 15,
 128                 .flags = ZORAN_FORMAT_CAPTURE |
 129                          ZORAN_FORMAT_OVERLAY,
 130                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif,
 131         }, {
 132                 .name = "16-bit RGB LE",
 133                 ZFMT(VIDEO_PALETTE_RGB565,
 134                      V4L2_PIX_FMT_RGB565, V4L2_COLORSPACE_SRGB),
 135                 .depth = 16,
 136                 .flags = ZORAN_FORMAT_CAPTURE |
 137                          ZORAN_FORMAT_OVERLAY,
 138                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif|
 139                            ZR36057_VFESPFR_LittleEndian,
 140         }, {
 141                 .name = "16-bit RGB BE",
 142                 ZFMT(-1,
 143                      V4L2_PIX_FMT_RGB565, V4L2_COLORSPACE_SRGB),
 144                 .depth = 16,
 145                 .flags = ZORAN_FORMAT_CAPTURE |
 146                          ZORAN_FORMAT_OVERLAY,
 147                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif,
 148         }, {
 149                 .name = "24-bit RGB",
 150                 ZFMT(VIDEO_PALETTE_RGB24,
 151                      V4L2_PIX_FMT_BGR24, V4L2_COLORSPACE_SRGB),
 152                 .depth = 24,
 153                 .flags = ZORAN_FORMAT_CAPTURE |
 154                          ZORAN_FORMAT_OVERLAY,
 155                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24,
 156         }, {
 157                 .name = "32-bit RGB LE",
 158                 ZFMT(VIDEO_PALETTE_RGB32,
 159                      V4L2_PIX_FMT_BGR32, V4L2_COLORSPACE_SRGB),
 160                 .depth = 32,
 161                 .flags = ZORAN_FORMAT_CAPTURE |
 162                          ZORAN_FORMAT_OVERLAY,
 163                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian,
 164         }, {
 165                 .name = "32-bit RGB BE",
 166                 ZFMT(-1,
 167                      V4L2_PIX_FMT_RGB32, V4L2_COLORSPACE_SRGB),
 168                 .depth = 32,
 169                 .flags = ZORAN_FORMAT_CAPTURE |
 170                          ZORAN_FORMAT_OVERLAY,
 171                 .vfespfr = ZR36057_VFESPFR_RGB888,
 172         }, {
 173                 .name = "4:2:2, packed, YUYV",
 174                 ZFMT(VIDEO_PALETTE_YUV422,
 175                      V4L2_PIX_FMT_YUYV, V4L2_COLORSPACE_SMPTE170M),
 176                 .depth = 16,
 177                 .flags = ZORAN_FORMAT_CAPTURE |
 178                          ZORAN_FORMAT_OVERLAY,
 179                 .vfespfr = ZR36057_VFESPFR_YUV422,
 180         }, {
 181                 .name = "4:2:2, packed, UYVY",
 182                 ZFMT(VIDEO_PALETTE_UYVY,
 183                      V4L2_PIX_FMT_UYVY, V4L2_COLORSPACE_SMPTE170M),
 184                 .depth = 16,
 185                 .flags = ZORAN_FORMAT_CAPTURE |
 186                          ZORAN_FORMAT_OVERLAY,
 187                 .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian,
 188         }, {
 189                 .name = "Hardware-encoded Motion-JPEG",
 190                 ZFMT(-1,
 191                      V4L2_PIX_FMT_MJPEG, V4L2_COLORSPACE_SMPTE170M),
 192                 .depth = 0,
 193                 .flags = ZORAN_FORMAT_CAPTURE |
 194                          ZORAN_FORMAT_PLAYBACK |
 195                          ZORAN_FORMAT_COMPRESSED,
 196         }
 197 };
 198 #define NUM_FORMATS ARRAY_SIZE(zoran_formats)
 199
 200 // RJ: Test only - want to test BUZ_USE_HIMEM even when CONFIG_BIGPHYS_AREA is defined
 201
 202
 203 extern int v4l_nbufs;
 204 extern int v4l_bufsize;
 205 extern int jpg_nbufs;
 206 extern int jpg_bufsize;
 207 extern int pass_through;
 208
 209 static int lock_norm = 0;       /* 1=Don't change TV standard (norm) */
 210 module_param(lock_norm, int, 0644);
 211 MODULE_PARM_DESC(lock_norm, "Prevent norm changes (1 = ignore, >1 = fail)");
 212
 213 #ifdef CONFIG_VIDEO_V4L2
 214         /* small helper function for calculating buffersizes for v4l2
 215          * we calculate the nearest higher power-of-two, which
 216          * will be the recommended buffersize */
 217 static __u32
 218 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
 219 {
 220         __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
 221         __u32 num = (1024 * 512) / (div);
 222         __u32 result = 2;
 223
 224         num--;
 225         while (num) {
 226                 num >>= 1;
 227                 result <<= 1;
 228         }
 229
 230         if (result > jpg_bufsize)
 231                 return jpg_bufsize;
 232         if (result < 8192)
 233                 return 8192;
 234         return result;
 235 }
 236 #endif
 237
 238 /* forward references */
 239 static void v4l_fbuffer_free(struct file *file);
 240 static void jpg_fbuffer_free(struct file *file);
 241
 242 /*
 243  *   Allocate the V4L grab buffers
 244  *
 245  *   These have to be pysically contiguous.
 246  *   If v4l_bufsize <= MAX_KMALLOC_MEM we use kmalloc
 247  *   else we try to allocate them with bigphysarea_alloc_pages
 248  *   if the bigphysarea patch is present in the kernel,
 249  *   else we try to use high memory (if the user has bootet
 250  *   Linux with the necessary memory left over).
 251  */
 252
 253 static unsigned long
 254 get_high_mem (unsigned long size)
 255 {
 256 /*
 257  * Check if there is usable memory at the end of Linux memory
 258  * of at least size. Return the physical address of this memory,
 259  * return 0 on failure.
 260  *
 261  * The idea is from Alexandro Rubini's book "Linux device drivers".
 262  * The driver from him which is downloadable from O'Reilly's
 263  * web site misses the "virt_to_phys(high_memory)" part
 264  * (and therefore doesn't work at all - at least with 2.2.x kernels).
 265  *
 266  * It should be unnecessary to mention that THIS IS DANGEROUS,
 267  * if more than one driver at a time has the idea to use this memory!!!!
 268  */
 269
 270         volatile unsigned char __iomem *mem;
 271         unsigned char c;
 272         unsigned long hi_mem_ph;
 273         unsigned long i;
 274
 275         /* Map the high memory to user space */
 276
 277         hi_mem_ph = virt_to_phys(high_memory);
 278
 279         mem = ioremap(hi_mem_ph, size);
 280         if (!mem) {
 281                 dprintk(1,
 282                         KERN_ERR "%s: get_high_mem() - ioremap failed\n",
 283                         ZORAN_NAME);
 284                 return 0;
 285         }
 286
 287         for (i = 0; i < size; i++) {
 288                 /* Check if it is memory */
 289                 c = i & 0xff;
 290                 writeb(c, mem + i);
 291                 if (readb(mem + i) != c)
 292                         break;
 293                 c = 255 - c;
 294                 writeb(c, mem + i);
 295                 if (readb(mem + i) != c)
 296                         break;
 297                 writeb(0, mem + i);     /* zero out memory */
 298
 299                 /* give the kernel air to breath */
 300                 if ((i & 0x3ffff) == 0x3ffff)
 301                         schedule();
 302         }
 303
 304         iounmap(mem);
 305
 306         if (i != size) {
 307                 dprintk(1,
 308                         KERN_ERR
 309                         "%s: get_high_mem() - requested %lu, avail %lu\n",
 310                         ZORAN_NAME, size, i);
 311                 return 0;
 312         }
 313
 314         return hi_mem_ph;
 315 }
 316
 317 static int
 318 v4l_fbuffer_alloc (struct file *file)
 319 {
 320         struct zoran_fh *fh = file->private_data;
 321         struct zoran *zr = fh->zr;
 322         int i, off;
 323         unsigned char *mem;
 324         unsigned long pmem = 0;
 325
 326         /* we might have old buffers lying around... */
 327         if (fh->v4l_buffers.ready_to_be_freed) {
 328                 v4l_fbuffer_free(file);
 329         }
 330
 331         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
 332                 if (fh->v4l_buffers.buffer[i].fbuffer)
 333                         dprintk(2,
 334                                 KERN_WARNING
 335                                 "%s: v4l_fbuffer_alloc() - buffer %d allready allocated!?\n",
 336                                 ZR_DEVNAME(zr), i);
 337
 338                 //udelay(20);
 339                 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
 340                         /* Use kmalloc */
 341
 342                         mem = kmalloc(fh->v4l_buffers.buffer_size, GFP_KERNEL);
 343                         if (mem == 0) {
 344                                 dprintk(1,
 345                                         KERN_ERR
 346                                         "%s: v4l_fbuffer_alloc() - kmalloc for V4L buf %d failed\n",
 347                                         ZR_DEVNAME(zr), i);
 348                                 v4l_fbuffer_free(file);
 349                                 return -ENOBUFS;
 350                         }
 351                         fh->v4l_buffers.buffer[i].fbuffer = mem;
 352                         fh->v4l_buffers.buffer[i].fbuffer_phys =
 353                             virt_to_phys(mem);
 354                         fh->v4l_buffers.buffer[i].fbuffer_bus =
 355                             virt_to_bus(mem);
 356                         for (off = 0; off < fh->v4l_buffers.buffer_size;
 357                              off += PAGE_SIZE)
 358                                 SetPageReserved(MAP_NR(mem + off));
 359                         dprintk(4,
 360                                 KERN_INFO
 361                                 "%s: v4l_fbuffer_alloc() - V4L frame %d mem 0x%lx (bus: 0x%lx)\n",
 362                                 ZR_DEVNAME(zr), i, (unsigned long) mem,
 363                                 virt_to_bus(mem));
 364                 } else {
 365
 366                         /* Use high memory which has been left at boot time */
 367
 368                         /* Ok., Ok. this is an evil hack - we make
 369                          * the assumption that physical addresses are
 370                          * the same as bus addresses (true at least
 371                          * for Intel processors). The whole method of
 372                          * obtaining and using this memory is not very
 373                          * nice - but I hope it saves some poor users
 374                          * from kernel hacking, which might have even
 375                          * more evil results */
 376
 377                         if (i == 0) {
 378                                 int size =
 379                                     fh->v4l_buffers.num_buffers *
 380                                     fh->v4l_buffers.buffer_size;
 381
 382                                 pmem = get_high_mem(size);
 383                                 if (pmem == 0) {
 384                                         dprintk(1,
 385                                                 KERN_ERR
 386                                                 "%s: v4l_fbuffer_alloc() - get_high_mem (size = %d KB) for V4L bufs failed\n",
 387                                                 ZR_DEVNAME(zr), size >> 10);
 388                                         return -ENOBUFS;
 389                                 }
 390                                 fh->v4l_buffers.buffer[0].fbuffer = NULL;
 391                                 fh->v4l_buffers.buffer[0].fbuffer_phys = pmem;
 392                                 fh->v4l_buffers.buffer[0].fbuffer_bus = pmem;
 393                                 dprintk(4,
 394                                         KERN_INFO
 395                                         "%s: v4l_fbuffer_alloc() - using %d KB high memory\n",
 396                                         ZR_DEVNAME(zr), size >> 10);
 397                         } else {
 398                                 fh->v4l_buffers.buffer[i].fbuffer = NULL;
 399                                 fh->v4l_buffers.buffer[i].fbuffer_phys =
 400                                     pmem + i * fh->v4l_buffers.buffer_size;
 401                                 fh->v4l_buffers.buffer[i].fbuffer_bus =
 402                                     pmem + i * fh->v4l_buffers.buffer_size;
 403                         }
 404                 }
 405         }
 406
 407         fh->v4l_buffers.allocated = 1;
 408
 409         return 0;
 410 }
 411
 412 /* free the V4L grab buffers */
 413 static void
 414 v4l_fbuffer_free (struct file *file)
 415 {
 416         struct zoran_fh *fh = file->private_data;
 417         struct zoran *zr = fh->zr;
 418         int i, off;
 419         unsigned char *mem;
 420
 421         dprintk(4, KERN_INFO "%s: v4l_fbuffer_free()\n", ZR_DEVNAME(zr));
 422
 423         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
 424                 if (!fh->v4l_buffers.buffer[i].fbuffer)
 425                         continue;
 426
 427                 if (fh->v4l_buffers.buffer_size <= MAX_KMALLOC_MEM) {
 428                         mem = fh->v4l_buffers.buffer[i].fbuffer;
 429                         for (off = 0; off < fh->v4l_buffers.buffer_size;
 430                              off += PAGE_SIZE)
 431                                 ClearPageReserved(MAP_NR(mem + off));
 432                         kfree((void *) fh->v4l_buffers.buffer[i].fbuffer);
 433                 }
 434                 fh->v4l_buffers.buffer[i].fbuffer = NULL;
 435         }
 436
 437         fh->v4l_buffers.allocated = 0;
 438         fh->v4l_buffers.ready_to_be_freed = 0;
 439 }
 440
 441 /*
 442  *   Allocate the MJPEG grab buffers.
 443  *
 444  *   If the requested buffer size is smaller than MAX_KMALLOC_MEM,
 445  *   kmalloc is used to request a physically contiguous area,
 446  *   else we allocate the memory in framgents with get_zeroed_page.
 447  *
 448  *   If a Natoma chipset is present and this is a revision 1 zr36057,
 449  *   each MJPEG buffer needs to be physically contiguous.
 450  *   (RJ: This statement is from Dave Perks' original driver,
 451  *   I could never check it because I have a zr36067)
 452  *   The driver cares about this because it reduces the buffer
 453  *   size to MAX_KMALLOC_MEM in that case (which forces contiguous allocation).
 454  *
 455  *   RJ: The contents grab buffers needs never be accessed in the driver.
 456  *       Therefore there is no need to allocate them with vmalloc in order
 457  *       to get a contiguous virtual memory space.
 458  *       I don't understand why many other drivers first allocate them with
 459  *       vmalloc (which uses internally also get_zeroed_page, but delivers you
 460  *       virtual addresses) and then again have to make a lot of efforts
 461  *       to get the physical address.
 462  *
 463  *   Ben Capper:
 464  *       On big-endian architectures (such as ppc) some extra steps
 465  *       are needed. When reading and writing to the stat_com array
 466  *       and fragment buffers, the device expects to see little-
 467  *       endian values. The use of cpu_to_le32() and le32_to_cpu()
 468  *       in this function (and one or two others in zoran_device.c)
 469  *       ensure that these values are always stored in little-endian
 470  *       form, regardless of architecture. The zr36057 does Very Bad
 471  *       Things on big endian architectures if the stat_com array
 472  *       and fragment buffers are not little-endian.
 473  */
 474
 475 static int
 476 jpg_fbuffer_alloc (struct file *file)
 477 {
 478         struct zoran_fh *fh = file->private_data;
 479         struct zoran *zr = fh->zr;
 480         int i, j, off;
 481         unsigned long mem;
 482
 483         /* we might have old buffers lying around */
 484         if (fh->jpg_buffers.ready_to_be_freed) {
 485                 jpg_fbuffer_free(file);
 486         }
 487
 488         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
 489                 if (fh->jpg_buffers.buffer[i].frag_tab)
 490                         dprintk(2,
 491                                 KERN_WARNING
 492                                 "%s: jpg_fbuffer_alloc() - buffer %d allready allocated!?\n",
 493                                 ZR_DEVNAME(zr), i);
 494
 495                 /* Allocate fragment table for this buffer */
 496
 497                 mem = get_zeroed_page(GFP_KERNEL);
 498                 if (mem == 0) {
 499                         dprintk(1,
 500                                 KERN_ERR
 501                                 "%s: jpg_fbuffer_alloc() - get_zeroed_page (frag_tab) failed for buffer %d\n",
 502                                 ZR_DEVNAME(zr), i);
 503                         jpg_fbuffer_free(file);
 504                         return -ENOBUFS;
 505                 }
 506                 fh->jpg_buffers.buffer[i].frag_tab = (u32 *) mem;
 507                 fh->jpg_buffers.buffer[i].frag_tab_bus =
 508                     virt_to_bus((void *) mem);
 509
 510                 //if (alloc_contig) {
 511                 if (fh->jpg_buffers.need_contiguous) {
 512                         mem =
 513                             (unsigned long) kmalloc(fh->jpg_buffers.
 514                                                     buffer_size,
 515                                                     GFP_KERNEL);
 516                         if (mem == 0) {
 517                                 dprintk(1,
 518                                         KERN_ERR
 519                                         "%s: jpg_fbuffer_alloc() - kmalloc failed for buffer %d\n",
 520                                         ZR_DEVNAME(zr), i);
 521                                 jpg_fbuffer_free(file);
 522                                 return -ENOBUFS;
 523                         }
 524                         fh->jpg_buffers.buffer[i].frag_tab[0] =
 525                             cpu_to_le32(virt_to_bus((void *) mem));
 526                         fh->jpg_buffers.buffer[i].frag_tab[1] =
 527                             cpu_to_le32(((fh->jpg_buffers.buffer_size / 4) << 1) | 1);
 528                         for (off = 0; off < fh->jpg_buffers.buffer_size;
 529                              off += PAGE_SIZE)
 530                                 SetPageReserved(MAP_NR(mem + off));
 531                 } else {
 532                         /* jpg_bufsize is allreay page aligned */
 533                         for (j = 0;
 534                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
 535                              j++) {
 536                                 mem = get_zeroed_page(GFP_KERNEL);
 537                                 if (mem == 0) {
 538                                         dprintk(1,
 539                                                 KERN_ERR
 540                                                 "%s: jpg_fbuffer_alloc() - get_zeroed_page failed for buffer %d\n",
 541                                                 ZR_DEVNAME(zr), i);
 542                                         jpg_fbuffer_free(file);
 543                                         return -ENOBUFS;
 544                                 }
 545
 546                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
 547                                     cpu_to_le32(virt_to_bus((void *) mem));
 548                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
 549                                                                    1] =
 550                                     cpu_to_le32((PAGE_SIZE / 4) << 1);
 551                                 SetPageReserved(MAP_NR(mem));
 552                         }
 553
 554                         fh->jpg_buffers.buffer[i].frag_tab[2 * j - 1] |= cpu_to_le32(1);
 555                 }
 556         }
 557
 558         dprintk(4,
 559                 KERN_DEBUG "%s: jpg_fbuffer_alloc() - %d KB allocated\n",
 560                 ZR_DEVNAME(zr),
 561                 (fh->jpg_buffers.num_buffers *
 562                  fh->jpg_buffers.buffer_size) >> 10);
 563
 564         fh->jpg_buffers.allocated = 1;
 565
 566         return 0;
 567 }
 568
 569 /* free the MJPEG grab buffers */
 570 static void
 571 jpg_fbuffer_free (struct file *file)
 572 {
 573         struct zoran_fh *fh = file->private_data;
 574         struct zoran *zr = fh->zr;
 575         int i, j, off;
 576         unsigned char *mem;
 577
 578         dprintk(4, KERN_DEBUG "%s: jpg_fbuffer_free()\n", ZR_DEVNAME(zr));
 579
 580         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
 581                 if (!fh->jpg_buffers.buffer[i].frag_tab)
 582                         continue;
 583
 584                 //if (alloc_contig) {
 585                 if (fh->jpg_buffers.need_contiguous) {
 586                         if (fh->jpg_buffers.buffer[i].frag_tab[0]) {
 587                                 mem = (unsigned char *) bus_to_virt(le32_to_cpu(
 588                                         fh->jpg_buffers.buffer[i].frag_tab[0]));
 589                                 for (off = 0;
 590                                      off < fh->jpg_buffers.buffer_size;
 591                                      off += PAGE_SIZE)
 592                                         ClearPageReserved(MAP_NR
 593                                                           (mem + off));
 594                                 kfree(mem);
 595                                 fh->jpg_buffers.buffer[i].frag_tab[0] = 0;
 596                                 fh->jpg_buffers.buffer[i].frag_tab[1] = 0;
 597                         }
 598                 } else {
 599                         for (j = 0;
 600                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
 601                              j++) {
 602                                 if (!fh->jpg_buffers.buffer[i].
 603                                     frag_tab[2 * j])
 604                                         break;
 605                                 ClearPageReserved(MAP_NR
 606                                                   (bus_to_virt
 607                                                    (le32_to_cpu
 608                                                     (fh->jpg_buffers.
 609                                                      buffer[i].frag_tab[2 *
 610                                                                        j]))));
 611                                 free_page((unsigned long)
 612                                           bus_to_virt
 613                                                   (le32_to_cpu
 614                                                    (fh->jpg_buffers.
 615                                                       buffer[i].
 616                                                       frag_tab[2 * j])));
 617                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j] =
 618                                     0;
 619                                 fh->jpg_buffers.buffer[i].frag_tab[2 * j +
 620                                                                    1] = 0;
 621                         }
 622                 }
 623
 624                 free_page((unsigned long) fh->jpg_buffers.buffer[i].
 625                           frag_tab);
 626                 fh->jpg_buffers.buffer[i].frag_tab = NULL;
 627         }
 628
 629         fh->jpg_buffers.allocated = 0;
 630         fh->jpg_buffers.ready_to_be_freed = 0;
 631 }
 632
 633 /*
 634  *   V4L Buffer grabbing
 635  */
 636
 637 static int
 638 zoran_v4l_set_format (struct file               *file,
 639                       int                        width,
 640                       int                        height,
 641                       const struct zoran_format *format)
 642 {
 643         struct zoran_fh *fh = file->private_data;
 644         struct zoran *zr = fh->zr;
 645         int bpp;
 646
 647         /* Check size and format of the grab wanted */
 648
 649         if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
 650             height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
 651                 dprintk(1,
 652                         KERN_ERR
 653                         "%s: v4l_set_format() - wrong frame size (%dx%d)\n",
 654                         ZR_DEVNAME(zr), width, height);
 655                 return -EINVAL;
 656         }
 657
 658         bpp = (format->depth + 7) / 8;
 659
 660         /* Check against available buffer size */
 661         if (height * width * bpp > fh->v4l_buffers.buffer_size) {
 662                 dprintk(1,
 663                         KERN_ERR
 664                         "%s: v4l_set_format() - video buffer size (%d kB) is too small\n",
 665                         ZR_DEVNAME(zr), fh->v4l_buffers.buffer_size >> 10);
 666                 return -EINVAL;
 667         }
 668
 669         /* The video front end needs 4-byte alinged line sizes */
 670
 671         if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
 672                 dprintk(1,
 673                         KERN_ERR
 674                         "%s: v4l_set_format() - wrong frame alingment\n",
 675                         ZR_DEVNAME(zr));
 676                 return -EINVAL;
 677         }
 678
 679         fh->v4l_settings.width = width;
 680         fh->v4l_settings.height = height;
 681         fh->v4l_settings.format = format;
 682         fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
 683
 684         return 0;
 685 }
 686
 687 static int
 688 zoran_v4l_queue_frame (struct file *file,
 689                        int          num)
 690 {
 691         struct zoran_fh *fh = file->private_data;
 692         struct zoran *zr = fh->zr;
 693         unsigned long flags;
 694         int res = 0;
 695
 696         if (!fh->v4l_buffers.allocated) {
 697                 dprintk(1,
 698                         KERN_ERR
 699                         "%s: v4l_queue_frame() - buffers not yet allocated\n",
 700                         ZR_DEVNAME(zr));
 701                 res = -ENOMEM;
 702         }
 703
 704         /* No grabbing outside the buffer range! */
 705         if (num >= fh->v4l_buffers.num_buffers || num < 0) {
 706                 dprintk(1,
 707                         KERN_ERR
 708                         "%s: v4l_queue_frame() - buffer %d is out of range\n",
 709                         ZR_DEVNAME(zr), num);
 710                 res = -EINVAL;
 711         }
 712
 713         spin_lock_irqsave(&zr->spinlock, flags);
 714
 715         if (fh->v4l_buffers.active == ZORAN_FREE) {
 716                 if (zr->v4l_buffers.active == ZORAN_FREE) {
 717                         zr->v4l_buffers = fh->v4l_buffers;
 718                         fh->v4l_buffers.active = ZORAN_ACTIVE;
 719                 } else {
 720                         dprintk(1,
 721                                 KERN_ERR
 722                                 "%s: v4l_queue_frame() - another session is already capturing\n",
 723                                 ZR_DEVNAME(zr));
 724                         res = -EBUSY;
 725                 }
 726         }
 727
 728         /* make sure a grab isn't going on currently with this buffer */
 729         if (!res) {
 730                 switch (zr->v4l_buffers.buffer[num].state) {
 731                 default:
 732                 case BUZ_STATE_PEND:
 733                         if (zr->v4l_buffers.active == ZORAN_FREE) {
 734                                 fh->v4l_buffers.active = ZORAN_FREE;
 735                                 zr->v4l_buffers.allocated = 0;
 736                         }
 737                         res = -EBUSY;   /* what are you doing? */
 738                         break;
 739                 case BUZ_STATE_DONE:
 740                         dprintk(2,
 741                                 KERN_WARNING
 742                                 "%s: v4l_queue_frame() - queueing buffer %d in state DONE!?\n",
 743                                 ZR_DEVNAME(zr), num);
 744                 case BUZ_STATE_USER:
 745                         /* since there is at least one unused buffer there's room for at least
 746                          * one more pend[] entry */
 747                         zr->v4l_pend[zr->v4l_pend_head++ &
 748                                         V4L_MASK_FRAME] = num;
 749                         zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
 750                         zr->v4l_buffers.buffer[num].bs.length =
 751                             fh->v4l_settings.bytesperline *
 752                             zr->v4l_settings.height;
 753                         fh->v4l_buffers.buffer[num] =
 754                             zr->v4l_buffers.buffer[num];
 755                         break;
 756                 }
 757         }
 758
 759         spin_unlock_irqrestore(&zr->spinlock, flags);
 760
 761         if (!res && zr->v4l_buffers.active == ZORAN_FREE)
 762                 zr->v4l_buffers.active = fh->v4l_buffers.active;
 763
 764         return res;
 765 }
 766
 767 static int
 768 v4l_grab (struct file       *file,
 769           struct video_mmap *mp)
 770 {
 771         struct zoran_fh *fh = file->private_data;
 772         struct zoran *zr = fh->zr;
 773         int res = 0, i;
 774
 775         for (i = 0; i < NUM_FORMATS; i++) {
 776                 if (zoran_formats[i].palette == mp->format &&
 777                     zoran_formats[i].flags & ZORAN_FORMAT_CAPTURE &&
 778                     !(zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED))
 779                         break;
 780         }
 781         if (i == NUM_FORMATS || zoran_formats[i].depth == 0) {
 782                 dprintk(1,
 783                         KERN_ERR
 784                         "%s: v4l_grab() - wrong bytes-per-pixel format\n",
 785                         ZR_DEVNAME(zr));
 786                 return -EINVAL;
 787         }
 788
 789         /*
 790          * To minimize the time spent in the IRQ routine, we avoid setting up
 791          * the video front end there.
 792          * If this grab has different parameters from a running streaming capture
 793          * we stop the streaming capture and start it over again.
 794          */
 795         if (zr->v4l_memgrab_active &&
 796             (zr->v4l_settings.width != mp->width ||
 797              zr->v4l_settings.height != mp->height ||
 798              zr->v4l_settings.format->palette != mp->format)) {
 799                 res = wait_grab_pending(zr);
 800                 if (res)
 801                         return res;
 802         }
 803         if ((res = zoran_v4l_set_format(file,
 804                                         mp->width,
 805                                         mp->height,
 806                                         &zoran_formats[i])))
 807                 return res;
 808         zr->v4l_settings = fh->v4l_settings;
 809
 810         /* queue the frame in the pending queue */
 811         if ((res = zoran_v4l_queue_frame(file, mp->frame))) {
 812                 fh->v4l_buffers.active = ZORAN_FREE;
 813                 return res;
 814         }
 815
 816         /* put the 36057 into frame grabbing mode */
 817         if (!res && !zr->v4l_memgrab_active)
 818                 zr36057_set_memgrab(zr, 1);
 819
 820         //dprintk(4, KERN_INFO "%s: Frame grab 3...\n", ZR_DEVNAME(zr));
 821
 822         return res;
 823 }
 824
 825 /*
 826  * Sync on a V4L buffer
 827  */
 828
 829 static int
 830 v4l_sync (struct file *file,
 831           int          frame)
 832 {
 833         struct zoran_fh *fh = file->private_data;
 834         struct zoran *zr = fh->zr;
 835         unsigned long flags;
 836
 837         if (fh->v4l_buffers.active == ZORAN_FREE) {
 838                 dprintk(1,
 839                         KERN_ERR
 840                         "%s: v4l_sync() - no grab active for this session\n",
 841                         ZR_DEVNAME(zr));
 842                 return -EINVAL;
 843         }
 844
 845         /* check passed-in frame number */
 846         if (frame >= fh->v4l_buffers.num_buffers || frame < 0) {
 847                 dprintk(1,
 848                         KERN_ERR "%s: v4l_sync() - frame %d is invalid\n",
 849                         ZR_DEVNAME(zr), frame);
 850                 return -EINVAL;
 851         }
 852
 853         /* Check if is buffer was queued at all */
 854         if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
 855                 dprintk(1,
 856                         KERN_ERR
 857                         "%s: v4l_sync() - attempt to sync on a buffer which was not queued?\n",
 858                         ZR_DEVNAME(zr));
 859                 return -EPROTO;
 860         }
 861
 862         /* wait on this buffer to get ready */
 863         if (!wait_event_interruptible_timeout(zr->v4l_capq,
 864                                 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND),
 865                                 10*HZ))
 866                 return -ETIME;
 867         if (signal_pending(current))
 868                 return -ERESTARTSYS;
 869
 870         /* buffer should now be in BUZ_STATE_DONE */
 871         if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
 872                 dprintk(2,
 873                         KERN_ERR "%s: v4l_sync() - internal state error\n",
 874                         ZR_DEVNAME(zr));
 875
 876         zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
 877         fh->v4l_buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
 878
 879         spin_lock_irqsave(&zr->spinlock, flags);
 880
 881         /* Check if streaming capture has finished */
 882         if (zr->v4l_pend_tail == zr->v4l_pend_head) {
 883                 zr36057_set_memgrab(zr, 0);
 884                 if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
 885                         fh->v4l_buffers.active = zr->v4l_buffers.active =
 886                             ZORAN_FREE;
 887                         zr->v4l_buffers.allocated = 0;
 888                 }
 889         }
 890
 891         spin_unlock_irqrestore(&zr->spinlock, flags);
 892
 893         return 0;
 894 }
 895
 896 /*
 897  *   Queue a MJPEG buffer for capture/playback
 898  */
 899
 900 static int
 901 zoran_jpg_queue_frame (struct file          *file,
 902                        int                   num,
 903                        enum zoran_codec_mode mode)
 904 {
 905         struct zoran_fh *fh = file->private_data;
 906         struct zoran *zr = fh->zr;
 907         unsigned long flags;
 908         int res = 0;
 909
 910         /* Check if buffers are allocated */
 911         if (!fh->jpg_buffers.allocated) {
 912                 dprintk(1,
 913                         KERN_ERR
 914                         "%s: jpg_queue_frame() - buffers not yet allocated\n",
 915                         ZR_DEVNAME(zr));
 916                 return -ENOMEM;
 917         }
 918
 919         /* No grabbing outside the buffer range! */
 920         if (num >= fh->jpg_buffers.num_buffers || num < 0) {
 921                 dprintk(1,
 922                         KERN_ERR
 923                         "%s: jpg_queue_frame() - buffer %d out of range\n",
 924                         ZR_DEVNAME(zr), num);
 925                 return -EINVAL;
 926         }
 927
 928         /* what is the codec mode right now? */
 929         if (zr->codec_mode == BUZ_MODE_IDLE) {
 930                 zr->jpg_settings = fh->jpg_settings;
 931         } else if (zr->codec_mode != mode) {
 932                 /* wrong codec mode active - invalid */
 933                 dprintk(1,
 934                         KERN_ERR
 935                         "%s: jpg_queue_frame() - codec in wrong mode\n",
 936                         ZR_DEVNAME(zr));
 937                 return -EINVAL;
 938         }
 939
 940         if (fh->jpg_buffers.active == ZORAN_FREE) {
 941                 if (zr->jpg_buffers.active == ZORAN_FREE) {
 942                         zr->jpg_buffers = fh->jpg_buffers;
 943                         fh->jpg_buffers.active = ZORAN_ACTIVE;
 944                 } else {
 945                         dprintk(1,
 946                                 KERN_ERR
 947                                 "%s: jpg_queue_frame() - another session is already capturing\n",
 948                                 ZR_DEVNAME(zr));
 949                         res = -EBUSY;
 950                 }
 951         }
 952
 953         if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
 954                 /* Ok load up the jpeg codec */
 955                 zr36057_enable_jpg(zr, mode);
 956         }
 957
 958         spin_lock_irqsave(&zr->spinlock, flags);
 959
 960         if (!res) {
 961                 switch (zr->jpg_buffers.buffer[num].state) {
 962                 case BUZ_STATE_DONE:
 963                         dprintk(2,
 964                                 KERN_WARNING
 965                                 "%s: jpg_queue_frame() - queing frame in BUZ_STATE_DONE state!?\n",
 966                                 ZR_DEVNAME(zr));
 967                 case BUZ_STATE_USER:
 968                         /* since there is at least one unused buffer there's room for at
 969                          *least one more pend[] entry */
 970                         zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] =
 971                             num;
 972                         zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
 973                         fh->jpg_buffers.buffer[num] =
 974                             zr->jpg_buffers.buffer[num];
 975                         zoran_feed_stat_com(zr);
 976                         break;
 977                 default:
 978                 case BUZ_STATE_DMA:
 979                 case BUZ_STATE_PEND:
 980                         if (zr->jpg_buffers.active == ZORAN_FREE) {
 981                                 fh->jpg_buffers.active = ZORAN_FREE;
 982                                 zr->jpg_buffers.allocated = 0;
 983                         }
 984                         res = -EBUSY;   /* what are you doing? */
 985                         break;
 986                 }
 987         }
 988
 989         spin_unlock_irqrestore(&zr->spinlock, flags);
 990
 991         if (!res && zr->jpg_buffers.active == ZORAN_FREE) {
 992                 zr->jpg_buffers.active = fh->jpg_buffers.active;
 993         }
 994
 995         return res;
 996 }
 997
 998 static int
 999 jpg_qbuf (struct file          *file,
1000           int                   frame,
1001           enum zoran_codec_mode mode)
1002 {
1003         struct zoran_fh *fh = file->private_data;
1004         struct zoran *zr = fh->zr;
1005         int res = 0;
1006
1007         /* Does the user want to stop streaming? */
1008         if (frame < 0) {
1009                 if (zr->codec_mode == mode) {
1010                         if (fh->jpg_buffers.active == ZORAN_FREE) {
1011                                 dprintk(1,
1012                                         KERN_ERR
1013                                         "%s: jpg_qbuf(-1) - session not active\n",
1014                                         ZR_DEVNAME(zr));
1015                                 return -EINVAL;
1016                         }
1017                         fh->jpg_buffers.active = zr->jpg_buffers.active =
1018                             ZORAN_FREE;
1019                         zr->jpg_buffers.allocated = 0;
1020                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1021                         return 0;
1022                 } else {
1023                         dprintk(1,
1024                                 KERN_ERR
1025                                 "%s: jpg_qbuf() - stop streaming but not in streaming mode\n",
1026                                 ZR_DEVNAME(zr));
1027                         return -EINVAL;
1028                 }
1029         }
1030
1031         if ((res = zoran_jpg_queue_frame(file, frame, mode)))
1032                 return res;
1033
1034         /* Start the jpeg codec when the first frame is queued  */
1035         if (!res && zr->jpg_que_head == 1)
1036                 jpeg_start(zr);
1037
1038         return res;
1039 }
1040
1041 /*
1042  *   Sync on a MJPEG buffer
1043  */
1044
1045 static int
1046 jpg_sync (struct file       *file,
1047           struct zoran_sync *bs)
1048 {
1049         struct zoran_fh *fh = file->private_data;
1050         struct zoran *zr = fh->zr;
1051         unsigned long flags;
1052         int frame;
1053
1054         if (fh->jpg_buffers.active == ZORAN_FREE) {
1055                 dprintk(1,
1056                         KERN_ERR
1057                         "%s: jpg_sync() - capture is not currently active\n",
1058                         ZR_DEVNAME(zr));
1059                 return -EINVAL;
1060         }
1061         if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
1062             zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
1063                 dprintk(1,
1064                         KERN_ERR
1065                         "%s: jpg_sync() - codec not in streaming mode\n",
1066                         ZR_DEVNAME(zr));
1067                 return -EINVAL;
1068         }
1069         if (!wait_event_interruptible_timeout(zr->jpg_capq,
1070                         (zr->jpg_que_tail != zr->jpg_dma_tail ||
1071                          zr->jpg_dma_tail == zr->jpg_dma_head),
1072                         10*HZ)) {
1073                 int isr;
1074
1075                 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
1076                 udelay(1);
1077                 zr->codec->control(zr->codec, CODEC_G_STATUS,
1078                                            sizeof(isr), &isr);
1079                 dprintk(1,
1080                         KERN_ERR
1081                         "%s: jpg_sync() - timeout: codec isr=0x%02x\n",
1082                         ZR_DEVNAME(zr), isr);
1083
1084                 return -ETIME;
1085
1086         }
1087         if (signal_pending(current))
1088                 return -ERESTARTSYS;
1089
1090         spin_lock_irqsave(&zr->spinlock, flags);
1091
1092         if (zr->jpg_dma_tail != zr->jpg_dma_head)
1093                 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
1094         else
1095                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
1096
1097         /* buffer should now be in BUZ_STATE_DONE */
1098         if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
1099                 dprintk(2,
1100                         KERN_ERR "%s: jpg_sync() - internal state error\n",
1101                         ZR_DEVNAME(zr));
1102
1103         *bs = zr->jpg_buffers.buffer[frame].bs;
1104         bs->frame = frame;
1105         zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
1106         fh->jpg_buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
1107
1108         spin_unlock_irqrestore(&zr->spinlock, flags);
1109
1110         return 0;
1111 }
1112
1113 static void
1114 zoran_open_init_session (struct file *file)
1115 {
1116         int i;
1117         struct zoran_fh *fh = file->private_data;
1118         struct zoran *zr = fh->zr;
1119
1120         /* Per default, map the V4L Buffers */
1121         fh->map_mode = ZORAN_MAP_MODE_RAW;
1122
1123         /* take over the card's current settings */
1124         fh->overlay_settings = zr->overlay_settings;
1125         fh->overlay_settings.is_set = 0;
1126         fh->overlay_settings.format = zr->overlay_settings.format;
1127         fh->overlay_active = ZORAN_FREE;
1128
1129         /* v4l settings */
1130         fh->v4l_settings = zr->v4l_settings;
1131
1132         /* v4l_buffers */
1133         memset(&fh->v4l_buffers, 0, sizeof(struct zoran_v4l_struct));
1134         for (i = 0; i < VIDEO_MAX_FRAME; i++) {
1135                 fh->v4l_buffers.buffer[i].state = BUZ_STATE_USER;       /* nothing going on */
1136                 fh->v4l_buffers.buffer[i].bs.frame = i;
1137         }
1138         fh->v4l_buffers.allocated = 0;
1139         fh->v4l_buffers.ready_to_be_freed = 0;
1140         fh->v4l_buffers.active = ZORAN_FREE;
1141         fh->v4l_buffers.buffer_size = v4l_bufsize;
1142         fh->v4l_buffers.num_buffers = v4l_nbufs;
1143
1144         /* jpg settings */
1145         fh->jpg_settings = zr->jpg_settings;
1146
1147         /* jpg_buffers */
1148         memset(&fh->jpg_buffers, 0, sizeof(struct zoran_jpg_struct));
1149         for (i = 0; i < BUZ_MAX_FRAME; i++) {
1150                 fh->jpg_buffers.buffer[i].state = BUZ_STATE_USER;       /* nothing going on */
1151                 fh->jpg_buffers.buffer[i].bs.frame = i;
1152         }
1153         fh->jpg_buffers.need_contiguous = zr->jpg_buffers.need_contiguous;
1154         fh->jpg_buffers.allocated = 0;
1155         fh->jpg_buffers.ready_to_be_freed = 0;
1156         fh->jpg_buffers.active = ZORAN_FREE;
1157         fh->jpg_buffers.buffer_size = jpg_bufsize;
1158         fh->jpg_buffers.num_buffers = jpg_nbufs;
1159 }
1160
1161 static void
1162 zoran_close_end_session (struct file *file)
1163 {
1164         struct zoran_fh *fh = file->private_data;
1165         struct zoran *zr = fh->zr;
1166
1167         /* overlay */
1168         if (fh->overlay_active != ZORAN_FREE) {
1169                 fh->overlay_active = zr->overlay_active = ZORAN_FREE;
1170                 zr->v4l_overlay_active = 0;
1171                 if (!zr->v4l_memgrab_active)
1172                         zr36057_overlay(zr, 0);
1173                 zr->overlay_mask = NULL;
1174         }
1175
1176         /* v4l capture */
1177         if (fh->v4l_buffers.active != ZORAN_FREE) {
1178                 long flags;
1179
1180                 spin_lock_irqsave(&zr->spinlock, flags);
1181                 zr36057_set_memgrab(zr, 0);
1182                 zr->v4l_buffers.allocated = 0;
1183                 zr->v4l_buffers.active = fh->v4l_buffers.active =
1184                     ZORAN_FREE;
1185                 spin_unlock_irqrestore(&zr->spinlock, flags);
1186         }
1187
1188         /* v4l buffers */
1189         if (fh->v4l_buffers.allocated ||
1190             fh->v4l_buffers.ready_to_be_freed) {
1191                 v4l_fbuffer_free(file);
1192         }
1193
1194         /* jpg capture */
1195         if (fh->jpg_buffers.active != ZORAN_FREE) {
1196                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1197                 zr->jpg_buffers.allocated = 0;
1198                 zr->jpg_buffers.active = fh->jpg_buffers.active =
1199                     ZORAN_FREE;
1200         }
1201
1202         /* jpg buffers */
1203         if (fh->jpg_buffers.allocated ||
1204             fh->jpg_buffers.ready_to_be_freed) {
1205                 jpg_fbuffer_free(file);
1206         }
1207 }
1208
1209 /*
1210  *   Open a zoran card. Right now the flags stuff is just playing
1211  */
1212
1213 static int
1214 zoran_open (struct inode *inode,
1215             struct file  *file)
1216 {
1217         unsigned int minor = iminor(inode);
1218         struct zoran *zr = NULL;
1219         struct zoran_fh *fh;
1220         int i, res, first_open = 0, have_module_locks = 0;
1221
1222         /* find the device */
1223         for (i = 0; i < zoran_num; i++) {
1224                 if (zoran[i].video_dev->minor == minor) {
1225                         zr = &zoran[i];
1226                         break;
1227                 }
1228         }
1229
1230         if (!zr) {
1231                 dprintk(1, KERN_ERR "%s: device not found!\n", ZORAN_NAME);
1232                 res = -ENODEV;
1233                 goto open_unlock_and_return;
1234         }
1235
1236         /* see fs/device.c - the kernel already locks during open(),
1237          * so locking ourselves only causes deadlocks */
1238         /*mutex_lock(&zr->resource_lock);*/
1239
1240         if (!zr->decoder) {
1241                 dprintk(1,
1242                         KERN_ERR "%s: no TV decoder loaded for device!\n",
1243                         ZR_DEVNAME(zr));
1244                 res = -EIO;
1245                 goto open_unlock_and_return;
1246         }
1247
1248         /* try to grab a module lock */
1249         if (!try_module_get(THIS_MODULE)) {
1250                 dprintk(1,
1251                         KERN_ERR
1252                         "%s: failed to acquire my own lock! PANIC!\n",
1253                         ZR_DEVNAME(zr));
1254                 res = -ENODEV;
1255                 goto open_unlock_and_return;
1256         }
1257         if (!try_module_get(zr->decoder->driver->driver.owner)) {
1258                 dprintk(1,
1259                         KERN_ERR
1260                         "%s: failed to grab ownership of i2c decoder\n",
1261                         ZR_DEVNAME(zr));
1262                 res = -EIO;
1263                 module_put(THIS_MODULE);
1264                 goto open_unlock_and_return;
1265         }
1266         if (zr->encoder &&
1267             !try_module_get(zr->encoder->driver->driver.owner)) {
1268                 dprintk(1,
1269                         KERN_ERR
1270                         "%s: failed to grab ownership of i2c encoder\n",
1271                         ZR_DEVNAME(zr));
1272                 res = -EIO;
1273                 module_put(zr->decoder->driver->driver.owner);
1274                 module_put(THIS_MODULE);
1275                 goto open_unlock_and_return;
1276         }
1277
1278         have_module_locks = 1;
1279
1280         if (zr->user >= 2048) {
1281                 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
1282                         ZR_DEVNAME(zr), zr->user);
1283                 res = -EBUSY;
1284                 goto open_unlock_and_return;
1285         }
1286
1287         dprintk(1, KERN_INFO "%s: zoran_open(%s, pid=[%d]), users(-)=%d\n",
1288                 ZR_DEVNAME(zr), current->comm, current->pid, zr->user);
1289
1290         /* now, create the open()-specific file_ops struct */
1291         fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
1292         if (!fh) {
1293                 dprintk(1,
1294                         KERN_ERR
1295                         "%s: zoran_open() - allocation of zoran_fh failed\n",
1296                         ZR_DEVNAME(zr));
1297                 res = -ENOMEM;
1298                 goto open_unlock_and_return;
1299         }
1300         /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
1301          * on norm-change! */
1302         fh->overlay_mask =
1303             kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
1304         if (!fh->overlay_mask) {
1305                 dprintk(1,
1306                         KERN_ERR
1307                         "%s: zoran_open() - allocation of overlay_mask failed\n",
1308                         ZR_DEVNAME(zr));
1309                 kfree(fh);
1310                 res = -ENOMEM;
1311                 goto open_unlock_and_return;
1312         }
1313
1314         if (zr->user++ == 0)
1315                 first_open = 1;
1316
1317         /*mutex_unlock(&zr->resource_lock);*/
1318
1319         /* default setup - TODO: look at flags */
1320         if (first_open) {       /* First device open */
1321                 zr36057_restart(zr);
1322                 zoran_open_init_params(zr);
1323                 zoran_init_hardware(zr);
1324
1325                 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
1326         }
1327
1328         /* set file_ops stuff */
1329         file->private_data = fh;
1330         fh->zr = zr;
1331         zoran_open_init_session(file);
1332
1333         return 0;
1334
1335 open_unlock_and_return:
1336         /* if we grabbed locks, release them accordingly */
1337         if (have_module_locks) {
1338                 module_put(zr->decoder->driver->driver.owner);
1339                 if (zr->encoder) {
1340                         module_put(zr->encoder->driver->driver.owner);
1341                 }
1342                 module_put(THIS_MODULE);
1343         }
1344
1345         /* if there's no device found, we didn't obtain the lock either */
1346         if (zr) {
1347                 /*mutex_unlock(&zr->resource_lock);*/
1348         }
1349
1350         return res;
1351 }
1352
1353 static int
1354 zoran_close (struct inode *inode,
1355              struct file  *file)
1356 {
1357         struct zoran_fh *fh = file->private_data;
1358         struct zoran *zr = fh->zr;
1359
1360         dprintk(1, KERN_INFO "%s: zoran_close(%s, pid=[%d]), users(+)=%d\n",
1361                 ZR_DEVNAME(zr), current->comm, current->pid, zr->user);
1362
1363         /* kernel locks (fs/device.c), so don't do that ourselves
1364          * (prevents deadlocks) */
1365         /*mutex_lock(&zr->resource_lock);*/
1366
1367         zoran_close_end_session(file);
1368
1369         if (zr->user-- == 1) {  /* Last process */
1370                 /* Clean up JPEG process */
1371                 wake_up_interruptible(&zr->jpg_capq);
1372                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1373                 zr->jpg_buffers.allocated = 0;
1374                 zr->jpg_buffers.active = ZORAN_FREE;
1375
1376                 /* disable interrupts */
1377                 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1378
1379                 if (zr36067_debug > 1)
1380                         print_interrupts(zr);
1381
1382                 /* Overlay off */
1383                 zr->v4l_overlay_active = 0;
1384                 zr36057_overlay(zr, 0);
1385                 zr->overlay_mask = NULL;
1386
1387                 /* capture off */
1388                 wake_up_interruptible(&zr->v4l_capq);
1389                 zr36057_set_memgrab(zr, 0);
1390                 zr->v4l_buffers.allocated = 0;
1391                 zr->v4l_buffers.active = ZORAN_FREE;
1392                 zoran_set_pci_master(zr, 0);
1393
1394                 if (!pass_through) {    /* Switch to color bar */
1395                         int zero = 0, two = 2;
1396                         decoder_command(zr, DECODER_ENABLE_OUTPUT, &zero);
1397                         encoder_command(zr, ENCODER_SET_INPUT, &two);
1398                 }
1399         }
1400
1401         file->private_data = NULL;
1402         kfree(fh->overlay_mask);
1403         kfree(fh);
1404
1405         /* release locks on the i2c modules */
1406         module_put(zr->decoder->driver->driver.owner);
1407         if (zr->encoder) {
1408                  module_put(zr->encoder->driver->driver.owner);
1409         }
1410         module_put(THIS_MODULE);
1411
1412         /*mutex_unlock(&zr->resource_lock);*/
1413
1414         dprintk(4, KERN_INFO "%s: zoran_close() done\n", ZR_DEVNAME(zr));
1415
1416         return 0;
1417 }
1418
1419
1420 static ssize_t
1421 zoran_read (struct file *file,
1422             char        __user *data,
1423             size_t       count,
1424             loff_t      *ppos)
1425 {
1426         /* we simply don't support read() (yet)... */
1427
1428         return -EINVAL;
1429 }
1430
1431 static ssize_t
1432 zoran_write (struct file *file,
1433              const char  __user *data,
1434              size_t       count,
1435              loff_t      *ppos)
1436 {
1437         /* ...and the same goes for write() */
1438
1439         return -EINVAL;
1440 }
1441
1442 static int
1443 setup_fbuffer (struct file               *file,
1444                void                      *base,
1445                const struct zoran_format *fmt,
1446                int                        width,
1447                int                        height,
1448                int                        bytesperline)
1449 {
1450         struct zoran_fh *fh = file->private_data;
1451         struct zoran *zr = fh->zr;
1452
1453         /* (Ronald) v4l/v4l2 guidelines */
1454         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1455                 return -EPERM;
1456
1457         /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
1458            ALi Magik (that needs very low latency while the card needs a
1459            higher value always) */
1460
1461         if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
1462                 return -ENXIO;
1463
1464         /* we need a bytesperline value, even if not given */
1465         if (!bytesperline)
1466                 bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
1467
1468 #if 0
1469         if (zr->overlay_active) {
1470                 /* dzjee... stupid users... don't even bother to turn off
1471                  * overlay before changing the memory location...
1472                  * normally, we would return errors here. However, one of
1473                  * the tools that does this is... xawtv! and since xawtv
1474                  * is used by +/- 99% of the users, we'd rather be user-
1475                  * friendly and silently do as if nothing went wrong */
1476                 dprintk(3,
1477                         KERN_ERR
1478                         "%s: setup_fbuffer() - forced overlay turnoff because framebuffer changed\n",
1479                         ZR_DEVNAME(zr));
1480                 zr36057_overlay(zr, 0);
1481         }
1482 #endif
1483
1484         if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
1485                 dprintk(1,
1486                         KERN_ERR
1487                         "%s: setup_fbuffer() - no valid overlay format given\n",
1488                         ZR_DEVNAME(zr));
1489                 return -EINVAL;
1490         }
1491         if (height <= 0 || width <= 0 || bytesperline <= 0) {
1492                 dprintk(1,
1493                         KERN_ERR
1494                         "%s: setup_fbuffer() - invalid height/width/bpl value (%d|%d|%d)\n",
1495                         ZR_DEVNAME(zr), width, height, bytesperline);
1496                 return -EINVAL;
1497         }
1498         if (bytesperline & 3) {
1499                 dprintk(1,
1500                         KERN_ERR
1501                         "%s: setup_fbuffer() - bytesperline (%d) must be 4-byte aligned\n",
1502                         ZR_DEVNAME(zr), bytesperline);
1503                 return -EINVAL;
1504         }
1505
1506         zr->buffer.base = (void *) ((unsigned long) base & ~3);
1507         zr->buffer.height = height;
1508         zr->buffer.width = width;
1509         zr->buffer.depth = fmt->depth;
1510         zr->overlay_settings.format = fmt;
1511         zr->buffer.bytesperline = bytesperline;
1512
1513         /* The user should set new window parameters */
1514         zr->overlay_settings.is_set = 0;
1515
1516         return 0;
1517 }
1518
1519
1520 static int
1521 setup_window (struct file       *file,
1522               int                x,
1523               int                y,
1524               int                width,
1525               int                height,
1526               struct video_clip __user *clips,
1527               int                clipcount,
1528               void              __user *bitmap)
1529 {
1530         struct zoran_fh *fh = file->private_data;
1531         struct zoran *zr = fh->zr;
1532         struct video_clip *vcp = NULL;
1533         int on, end;
1534
1535
1536         if (!zr->buffer.base) {
1537                 dprintk(1,
1538                         KERN_ERR
1539                         "%s: setup_window() - frame buffer has to be set first\n",
1540                         ZR_DEVNAME(zr));
1541                 return -EINVAL;
1542         }
1543
1544         if (!fh->overlay_settings.format) {
1545                 dprintk(1,
1546                         KERN_ERR
1547                         "%s: setup_window() - no overlay format set\n",
1548                         ZR_DEVNAME(zr));
1549                 return -EINVAL;
1550         }
1551
1552         /*
1553          * The video front end needs 4-byte alinged line sizes, we correct that
1554          * silently here if necessary
1555          */
1556         if (zr->buffer.depth == 15 || zr->buffer.depth == 16) {
1557                 end = (x + width) & ~1; /* round down */
1558                 x = (x + 1) & ~1;       /* round up */
1559                 width = end - x;
1560         }
1561
1562         if (zr->buffer.depth == 24) {
1563                 end = (x + width) & ~3; /* round down */
1564                 x = (x + 3) & ~3;       /* round up */
1565                 width = end - x;
1566         }
1567
1568         if (width > BUZ_MAX_WIDTH)
1569                 width = BUZ_MAX_WIDTH;
1570         if (height > BUZ_MAX_HEIGHT)
1571                 height = BUZ_MAX_HEIGHT;
1572
1573         /* Check for vaild parameters */
1574         if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
1575             width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
1576                 dprintk(1,
1577                         KERN_ERR
1578                         "%s: setup_window() - width = %d or height = %d invalid\n",
1579                         ZR_DEVNAME(zr), width, height);
1580                 return -EINVAL;
1581         }
1582
1583         fh->overlay_settings.x = x;
1584         fh->overlay_settings.y = y;
1585         fh->overlay_settings.width = width;
1586         fh->overlay_settings.height = height;
1587         fh->overlay_settings.clipcount = clipcount;
1588
1589         /*
1590          * If an overlay is running, we have to switch it off
1591          * and switch it on again in order to get the new settings in effect.
1592          *
1593          * We also want to avoid that the overlay mask is written
1594          * when an overlay is running.
1595          */
1596
1597         on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
1598             zr->overlay_active != ZORAN_FREE &&
1599             fh->overlay_active != ZORAN_FREE;
1600         if (on)
1601                 zr36057_overlay(zr, 0);
1602
1603         /*
1604          *   Write the overlay mask if clips are wanted.
1605          *   We prefer a bitmap.
1606          */
1607         if (bitmap) {
1608                 /* fake value - it just means we want clips */
1609                 fh->overlay_settings.clipcount = 1;
1610
1611                 if (copy_from_user(fh->overlay_mask, bitmap,
1612                                    (width * height + 7) / 8)) {
1613                         return -EFAULT;
1614                 }
1615         } else if (clipcount > 0) {
1616                 /* write our own bitmap from the clips */
1617                 vcp = vmalloc(sizeof(struct video_clip) * (clipcount + 4));
1618                 if (vcp == NULL) {
1619                         dprintk(1,
1620                                 KERN_ERR
1621                                 "%s: setup_window() - Alloc of clip mask failed\n",
1622                                 ZR_DEVNAME(zr));
1623                         return -ENOMEM;
1624                 }
1625                 if (copy_from_user
1626                     (vcp, clips, sizeof(struct video_clip) * clipcount)) {
1627                         vfree(vcp);
1628                         return -EFAULT;
1629                 }
1630                 write_overlay_mask(file, vcp, clipcount);
1631                 vfree(vcp);
1632         }
1633
1634         fh->overlay_settings.is_set = 1;
1635         if (fh->overlay_active != ZORAN_FREE &&
1636             zr->overlay_active != ZORAN_FREE)
1637                 zr->overlay_settings = fh->overlay_settings;
1638
1639         if (on)
1640                 zr36057_overlay(zr, 1);
1641
1642         /* Make sure the changes come into effect */
1643         return wait_grab_pending(zr);
1644 }
1645
1646 static int
1647 setup_overlay (struct file *file,
1648                int          on)
1649 {
1650         struct zoran_fh *fh = file->private_data;
1651         struct zoran *zr = fh->zr;
1652
1653         /* If there is nothing to do, return immediatly */
1654         if ((on && fh->overlay_active != ZORAN_FREE) ||
1655             (!on && fh->overlay_active == ZORAN_FREE))
1656                 return 0;
1657
1658         /* check whether we're touching someone else's overlay */
1659         if (on && zr->overlay_active != ZORAN_FREE &&
1660             fh->overlay_active == ZORAN_FREE) {
1661                 dprintk(1,
1662                         KERN_ERR
1663                         "%s: setup_overlay() - overlay is already active for another session\n",
1664                         ZR_DEVNAME(zr));
1665                 return -EBUSY;
1666         }
1667         if (!on && zr->overlay_active != ZORAN_FREE &&
1668             fh->overlay_active == ZORAN_FREE) {
1669                 dprintk(1,
1670                         KERN_ERR
1671                         "%s: setup_overlay() - you cannot cancel someone else's session\n",
1672                         ZR_DEVNAME(zr));
1673                 return -EPERM;
1674         }
1675
1676         if (on == 0) {
1677                 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1678                 zr->v4l_overlay_active = 0;
1679                 /* When a grab is running, the video simply
1680                  * won't be switched on any more */
1681                 if (!zr->v4l_memgrab_active)
1682                         zr36057_overlay(zr, 0);
1683                 zr->overlay_mask = NULL;
1684         } else {
1685                 if (!zr->buffer.base || !fh->overlay_settings.is_set) {
1686                         dprintk(1,
1687                                 KERN_ERR
1688                                 "%s: setup_overlay() - buffer or window not set\n",
1689                                 ZR_DEVNAME(zr));
1690                         return -EINVAL;
1691                 }
1692                 if (!fh->overlay_settings.format) {
1693                         dprintk(1,
1694                                 KERN_ERR
1695                                 "%s: setup_overlay() - no overlay format set\n",
1696                                 ZR_DEVNAME(zr));
1697                         return -EINVAL;
1698                 }
1699                 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1700                 zr->v4l_overlay_active = 1;
1701                 zr->overlay_mask = fh->overlay_mask;
1702                 zr->overlay_settings = fh->overlay_settings;
1703                 if (!zr->v4l_memgrab_active)
1704                         zr36057_overlay(zr, 1);
1705                 /* When a grab is running, the video will be
1706                  * switched on when grab is finished */
1707         }
1708
1709         /* Make sure the changes come into effect */
1710         return wait_grab_pending(zr);
1711 }
1712
1713 #ifdef CONFIG_VIDEO_V4L2
1714         /* get the status of a buffer in the clients buffer queue */
1715 static int
1716 zoran_v4l2_buffer_status (struct file        *file,
1717                           struct v4l2_buffer *buf,
1718                           int                 num)
1719 {
1720         struct zoran_fh *fh = file->private_data;
1721         struct zoran *zr = fh->zr;
1722
1723         buf->flags = V4L2_BUF_FLAG_MAPPED;
1724
1725         switch (fh->map_mode) {
1726         case ZORAN_MAP_MODE_RAW:
1727
1728                 /* check range */
1729                 if (num < 0 || num >= fh->v4l_buffers.num_buffers ||
1730                     !fh->v4l_buffers.allocated) {
1731                         dprintk(1,
1732                                 KERN_ERR
1733                                 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1734                                 ZR_DEVNAME(zr));
1735                         return -EINVAL;
1736                 }
1737
1738                 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1739                 buf->length = fh->v4l_buffers.buffer_size;
1740
1741                 /* get buffer */
1742                 buf->bytesused = fh->v4l_buffers.buffer[num].bs.length;
1743                 if (fh->v4l_buffers.buffer[num].state == BUZ_STATE_DONE ||
1744                     fh->v4l_buffers.buffer[num].state == BUZ_STATE_USER) {
1745                         buf->sequence = fh->v4l_buffers.buffer[num].bs.seq;
1746                         buf->flags |= V4L2_BUF_FLAG_DONE;
1747                         buf->timestamp =
1748                             fh->v4l_buffers.buffer[num].bs.timestamp;
1749                 } else {
1750                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1751                 }
1752
1753                 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1754                         buf->field = V4L2_FIELD_TOP;
1755                 else
1756                         buf->field = V4L2_FIELD_INTERLACED;
1757
1758                 break;
1759
1760         case ZORAN_MAP_MODE_JPG_REC:
1761         case ZORAN_MAP_MODE_JPG_PLAY:
1762
1763                 /* check range */
1764                 if (num < 0 || num >= fh->jpg_buffers.num_buffers ||
1765                     !fh->jpg_buffers.allocated) {
1766                         dprintk(1,
1767                                 KERN_ERR
1768                                 "%s: v4l2_buffer_status() - wrong number or buffers not allocated\n",
1769                                 ZR_DEVNAME(zr));
1770                         return -EINVAL;
1771                 }
1772
1773                 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1774                               V4L2_BUF_TYPE_VIDEO_CAPTURE :
1775                               V4L2_BUF_TYPE_VIDEO_OUTPUT;
1776                 buf->length = fh->jpg_buffers.buffer_size;
1777
1778                 /* these variables are only written after frame has been captured */
1779                 if (fh->jpg_buffers.buffer[num].state == BUZ_STATE_DONE ||
1780                     fh->jpg_buffers.buffer[num].state == BUZ_STATE_USER) {
1781                         buf->sequence = fh->jpg_buffers.buffer[num].bs.seq;
1782                         buf->timestamp =
1783                             fh->jpg_buffers.buffer[num].bs.timestamp;
1784                         buf->bytesused =
1785                             fh->jpg_buffers.buffer[num].bs.length;
1786                         buf->flags |= V4L2_BUF_FLAG_DONE;
1787                 } else {
1788                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1789                 }
1790
1791                 /* which fields are these? */
1792                 if (fh->jpg_settings.TmpDcm != 1)
1793                         buf->field =
1794                             fh->jpg_settings.
1795                             odd_even ? V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1796                 else
1797                         buf->field =
1798                             fh->jpg_settings.
1799                             odd_even ? V4L2_FIELD_SEQ_TB :
1800                             V4L2_FIELD_SEQ_BT;
1801
1802                 break;
1803
1804         default:
1805
1806                 dprintk(5,
1807                         KERN_ERR
1808                         "%s: v4l2_buffer_status() - invalid buffer type|map_mode (%d|%d)\n",
1809                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
1810                 return -EINVAL;
1811         }
1812
1813         buf->memory = V4L2_MEMORY_MMAP;
1814         buf->index = num;
1815         buf->m.offset = buf->length * num;
1816
1817         return 0;
1818 }
1819 #endif
1820
1821 static int
1822 zoran_set_norm (struct zoran *zr,
1823                 int           norm) /* VIDEO_MODE_* */
1824 {
1825         int norm_encoder, on;
1826
1827         if (zr->v4l_buffers.active != ZORAN_FREE ||
1828             zr->jpg_buffers.active != ZORAN_FREE) {
1829                 dprintk(1,
1830                         KERN_WARNING
1831                         "%s: set_norm() called while in playback/capture mode\n",
1832                         ZR_DEVNAME(zr));
1833                 return -EBUSY;
1834         }
1835
1836         if (lock_norm && norm != zr->norm) {
1837                 if (lock_norm > 1) {
1838                         dprintk(1,
1839                                 KERN_WARNING
1840                                 "%s: set_norm() - TV standard is locked, can not switch norm\n",
1841                                 ZR_DEVNAME(zr));
1842                         return -EPERM;
1843                 } else {
1844                         dprintk(1,
1845                                 KERN_WARNING
1846                                 "%s: set_norm() - TV standard is locked, norm was not changed\n",
1847                                 ZR_DEVNAME(zr));
1848                         norm = zr->norm;
1849                 }
1850         }
1851
1852         if (norm != VIDEO_MODE_AUTO &&
1853             (norm < 0 || norm >= zr->card.norms ||
1854              !zr->card.tvn[norm])) {
1855                 dprintk(1,
1856                         KERN_ERR "%s: set_norm() - unsupported norm %d\n",
1857                         ZR_DEVNAME(zr), norm);
1858                 return -EINVAL;
1859         }
1860
1861         if (norm == VIDEO_MODE_AUTO) {
1862                 int status;
1863
1864                 /* if we have autodetect, ... */
1865                 struct video_decoder_capability caps;
1866                 decoder_command(zr, DECODER_GET_CAPABILITIES, &caps);
1867                 if (!(caps.flags & VIDEO_DECODER_AUTO)) {
1868                         dprintk(1, KERN_ERR "%s: norm=auto unsupported\n",
1869                                 ZR_DEVNAME(zr));
1870                         return -EINVAL;
1871                 }
1872
1873                 decoder_command(zr, DECODER_SET_NORM, &norm);
1874
1875                 /* let changes come into effect */
1876                 ssleep(2);
1877
1878                 decoder_command(zr, DECODER_GET_STATUS, &status);
1879                 if (!(status & DECODER_STATUS_GOOD)) {
1880                         dprintk(1,
1881                                 KERN_ERR
1882                                 "%s: set_norm() - no norm detected\n",
1883                                 ZR_DEVNAME(zr));
1884                         /* reset norm */
1885                         decoder_command(zr, DECODER_SET_NORM, &zr->norm);
1886                         return -EIO;
1887                 }
1888
1889                 if (status & DECODER_STATUS_NTSC)
1890                         norm = VIDEO_MODE_NTSC;
1891                 else if (status & DECODER_STATUS_SECAM)
1892                         norm = VIDEO_MODE_SECAM;
1893                 else
1894                         norm = VIDEO_MODE_PAL;
1895         }
1896         zr->timing = zr->card.tvn[norm];
1897         norm_encoder = norm;
1898
1899         /* We switch overlay off and on since a change in the
1900          * norm needs different VFE settings */
1901         on = zr->overlay_active && !zr->v4l_memgrab_active;
1902         if (on)
1903                 zr36057_overlay(zr, 0);
1904
1905         decoder_command(zr, DECODER_SET_NORM, &norm);
1906         encoder_command(zr, ENCODER_SET_NORM, &norm_encoder);
1907
1908         if (on)
1909                 zr36057_overlay(zr, 1);
1910
1911         /* Make sure the changes come into effect */
1912         zr->norm = norm;
1913
1914         return 0;
1915 }
1916
1917 static int
1918 zoran_set_input (struct zoran *zr,
1919                  int           input)
1920 {
1921         int realinput;
1922
1923         if (input == zr->input) {
1924                 return 0;
1925         }
1926
1927         if (zr->v4l_buffers.active != ZORAN_FREE ||
1928             zr->jpg_buffers.active != ZORAN_FREE) {
1929                 dprintk(1,
1930                         KERN_WARNING
1931                         "%s: set_input() called while in playback/capture mode\n",
1932                         ZR_DEVNAME(zr));
1933                 return -EBUSY;
1934         }
1935
1936         if (input < 0 || input >= zr->card.inputs) {
1937                 dprintk(1,
1938                         KERN_ERR
1939                         "%s: set_input() - unnsupported input %d\n",
1940                         ZR_DEVNAME(zr), input);
1941                 return -EINVAL;
1942         }
1943
1944         realinput = zr->card.input[input].muxsel;
1945         zr->input = input;
1946
1947         decoder_command(zr, DECODER_SET_INPUT, &realinput);
1948
1949         return 0;
1950 }
1951
1952 /*
1953  *   ioctl routine
1954  */
1955
1956 static int
1957 zoran_do_ioctl (struct inode *inode,
1958                 struct file  *file,
1959                 unsigned int  cmd,
1960                 void         *arg)
1961 {
1962         struct zoran_fh *fh = file->private_data;
1963         struct zoran *zr = fh->zr;
1964         /* CAREFUL: used in multiple places here */
1965         struct zoran_jpg_settings settings;
1966
1967         /* we might have older buffers lying around... We don't want
1968          * to wait, but we do want to try cleaning them up ASAP. So
1969          * we try to obtain the lock and free them. If that fails, we
1970          * don't do anything and wait for the next turn. In the end,
1971          * zoran_close() or a new allocation will still free them...
1972          * This is just a 'the sooner the better' extra 'feature'
1973          *
1974          * We don't free the buffers right on munmap() because that
1975          * causes oopses (kfree() inside munmap() oopses for no
1976          * apparent reason - it's also not reproduceable in any way,
1977          * but moving the free code outside the munmap() handler fixes
1978          * all this... If someone knows why, please explain me (Ronald)
1979          */
1980         if (mutex_trylock(&zr->resource_lock)) {
1981                 /* we obtained it! Let's try to free some things */
1982                 if (fh->jpg_buffers.ready_to_be_freed)
1983                         jpg_fbuffer_free(file);
1984                 if (fh->v4l_buffers.ready_to_be_freed)
1985                         v4l_fbuffer_free(file);
1986
1987                 mutex_unlock(&zr->resource_lock);
1988         }
1989
1990         switch (cmd) {
1991
1992         case VIDIOCGCAP:
1993         {
1994                 struct video_capability *vcap = arg;
1995
1996                 dprintk(3, KERN_DEBUG "%s: VIDIOCGCAP\n", ZR_DEVNAME(zr));
1997
1998                 memset(vcap, 0, sizeof(struct video_capability));
1999                 strncpy(vcap->name, ZR_DEVNAME(zr), sizeof(vcap->name)-1);
2000                 vcap->type = ZORAN_VID_TYPE;
2001
2002                 vcap->channels = zr->card.inputs;
2003                 vcap->audios = 0;
2004                 mutex_lock(&zr->resource_lock);
2005                 vcap->maxwidth = BUZ_MAX_WIDTH;
2006                 vcap->maxheight = BUZ_MAX_HEIGHT;
2007                 vcap->minwidth = BUZ_MIN_WIDTH;
2008                 vcap->minheight = BUZ_MIN_HEIGHT;
2009                 mutex_unlock(&zr->resource_lock);
2010
2011                 return 0;
2012         }
2013                 break;
2014
2015         case VIDIOCGCHAN:
2016         {
2017                 struct video_channel *vchan = arg;
2018                 int channel = vchan->channel;
2019
2020                 dprintk(3, KERN_DEBUG "%s: VIDIOCGCHAN - channel=%d\n",
2021                         ZR_DEVNAME(zr), vchan->channel);
2022
2023                 memset(vchan, 0, sizeof(struct video_channel));
2024                 if (channel > zr->card.inputs || channel < 0) {
2025                         dprintk(1,
2026                                 KERN_ERR
2027                                 "%s: VIDIOCGCHAN on not existing channel %d\n",
2028                                 ZR_DEVNAME(zr), channel);
2029                         return -EINVAL;
2030                 }
2031
2032                 strcpy(vchan->name, zr->card.input[channel].name);
2033
2034                 vchan->tuners = 0;
2035                 vchan->flags = 0;
2036                 vchan->type = VIDEO_TYPE_CAMERA;
2037                 mutex_lock(&zr->resource_lock);
2038                 vchan->norm = zr->norm;
2039                 mutex_unlock(&zr->resource_lock);
2040                 vchan->channel = channel;
2041
2042                 return 0;
2043         }
2044                 break;
2045
2046                 /* RJ: the documentation at http://roadrunner.swansea.linux.org.uk/v4lapi.shtml says:
2047                  *
2048                  * * "The VIDIOCSCHAN ioctl takes an integer argument and switches the capture to this input."
2049                  * *                                 ^^^^^^^
2050                  * * The famos BTTV driver has it implemented with a struct video_channel argument
2051                  * * and we follow it for compatibility reasons
2052                  * *
2053                  * * BTW: this is the only way the user can set the norm!
2054                  */
2055
2056         case VIDIOCSCHAN:
2057         {
2058                 struct video_channel *vchan = arg;
2059                 int res;
2060
2061                 dprintk(3,
2062                         KERN_DEBUG
2063                         "%s: VIDIOCSCHAN - channel=%d, norm=%d\n",
2064                         ZR_DEVNAME(zr), vchan->channel, vchan->norm);
2065
2066                 mutex_lock(&zr->resource_lock);
2067                 if ((res = zoran_set_input(zr, vchan->channel)))
2068                         goto schan_unlock_and_return;
2069                 if ((res = zoran_set_norm(zr, vchan->norm)))
2070                         goto schan_unlock_and_return;
2071
2072                 /* Make sure the changes come into effect */
2073                 res = wait_grab_pending(zr);
2074         schan_unlock_and_return:
2075                 mutex_unlock(&zr->resource_lock);
2076                 return res;
2077         }
2078                 break;
2079
2080         case VIDIOCGPICT:
2081         {
2082                 struct video_picture *vpict = arg;
2083
2084                 dprintk(3, KERN_DEBUG "%s: VIDIOCGPICT\n", ZR_DEVNAME(zr));
2085
2086                 memset(vpict, 0, sizeof(struct video_picture));
2087                 mutex_lock(&zr->resource_lock);
2088                 vpict->hue = zr->hue;
2089                 vpict->brightness = zr->brightness;
2090                 vpict->contrast = zr->contrast;
2091                 vpict->colour = zr->saturation;
2092                 if (fh->overlay_settings.format) {
2093                         vpict->depth = fh->overlay_settings.format->depth;
2094                         vpict->palette = fh->overlay_settings.format->palette;
2095                 } else {
2096                         vpict->depth = 0;
2097                 }
2098                 mutex_unlock(&zr->resource_lock);
2099
2100                 return 0;
2101         }
2102                 break;
2103
2104         case VIDIOCSPICT:
2105         {
2106                 struct video_picture *vpict = arg;
2107                 int i;
2108
2109                 dprintk(3,
2110                         KERN_DEBUG
2111                         "%s: VIDIOCSPICT - bri=%d, hue=%d, col=%d, con=%d, dep=%d, pal=%d\n",
2112                         ZR_DEVNAME(zr), vpict->brightness, vpict->hue,
2113                         vpict->colour, vpict->contrast, vpict->depth,
2114                         vpict->palette);
2115
2116                 for (i = 0; i < NUM_FORMATS; i++) {
2117                         const struct zoran_format *fmt = &zoran_formats[i];
2118
2119                         if (fmt->palette != -1 &&
2120                             fmt->flags & ZORAN_FORMAT_OVERLAY &&
2121                             fmt->palette == vpict->palette &&
2122                             fmt->depth == vpict->depth)
2123                                 break;
2124                 }
2125                 if (i == NUM_FORMATS) {
2126                         dprintk(1,
2127                                 KERN_ERR
2128                                 "%s: VIDIOCSPICT - Invalid palette %d\n",
2129                                 ZR_DEVNAME(zr), vpict->palette);
2130                         return -EINVAL;
2131                 }
2132
2133                 mutex_lock(&zr->resource_lock);
2134
2135                 decoder_command(zr, DECODER_SET_PICTURE, vpict);
2136
2137                 zr->hue = vpict->hue;
2138                 zr->contrast = vpict->contrast;
2139                 zr->saturation = vpict->colour;
2140                 zr->brightness = vpict->brightness;
2141
2142                 fh->overlay_settings.format = &zoran_formats[i];
2143
2144                 mutex_unlock(&zr->resource_lock);
2145
2146                 return 0;
2147         }
2148                 break;
2149
2150         case VIDIOCCAPTURE:
2151         {
2152                 int *on = arg, res;
2153
2154                 dprintk(3, KERN_DEBUG "%s: VIDIOCCAPTURE - on=%d\n",
2155                         ZR_DEVNAME(zr), *on);
2156
2157                 mutex_lock(&zr->resource_lock);
2158                 res = setup_overlay(file, *on);
2159                 mutex_unlock(&zr->resource_lock);
2160
2161                 return res;
2162         }
2163                 break;
2164
2165         case VIDIOCGWIN:
2166         {
2167                 struct video_window *vwin = arg;
2168
2169                 dprintk(3, KERN_DEBUG "%s: VIDIOCGWIN\n", ZR_DEVNAME(zr));
2170
2171                 memset(vwin, 0, sizeof(struct video_window));
2172                 mutex_lock(&zr->resource_lock);
2173                 vwin->x = fh->overlay_settings.x;
2174                 vwin->y = fh->overlay_settings.y;
2175                 vwin->width = fh->overlay_settings.width;
2176                 vwin->height = fh->overlay_settings.height;
2177                 mutex_unlock(&zr->resource_lock);
2178                 vwin->clipcount = 0;
2179                 return 0;
2180         }
2181                 break;
2182
2183         case VIDIOCSWIN:
2184         {
2185                 struct video_window *vwin = arg;
2186                 int res;
2187
2188                 dprintk(3,
2189                         KERN_DEBUG
2190                         "%s: VIDIOCSWIN - x=%d, y=%d, w=%d, h=%d, clipcount=%d\n",
2191                         ZR_DEVNAME(zr), vwin->x, vwin->y, vwin->width,
2192                         vwin->height, vwin->clipcount);
2193
2194                 mutex_lock(&zr->resource_lock);
2195                 res =
2196                     setup_window(file, vwin->x, vwin->y, vwin->width,
2197                                  vwin->height, vwin->clips,
2198                                  vwin->clipcount, NULL);
2199                 mutex_unlock(&zr->resource_lock);
2200
2201                 return res;
2202         }
2203                 break;
2204
2205         case VIDIOCGFBUF:
2206         {
2207                 struct video_buffer *vbuf = arg;
2208
2209                 dprintk(3, KERN_DEBUG "%s: VIDIOCGFBUF\n", ZR_DEVNAME(zr));
2210
2211                 mutex_lock(&zr->resource_lock);
2212                 *vbuf = zr->buffer;
2213                 mutex_unlock(&zr->resource_lock);
2214                 return 0;
2215         }
2216                 break;
2217
2218         case VIDIOCSFBUF:
2219         {
2220                 struct video_buffer *vbuf = arg;
2221                 int i, res = 0;
2222
2223                 dprintk(3,
2224                         KERN_DEBUG
2225                         "%s: VIDIOCSFBUF - base=%p, w=%d, h=%d, depth=%d, bpl=%d\n",
2226                         ZR_DEVNAME(zr), vbuf->base, vbuf->width,
2227                         vbuf->height, vbuf->depth, vbuf->bytesperline);
2228
2229                 for (i = 0; i < NUM_FORMATS; i++)
2230                         if (zoran_formats[i].depth == vbuf->depth)
2231                                 break;
2232                 if (i == NUM_FORMATS) {
2233                         dprintk(1,
2234                                 KERN_ERR
2235                                 "%s: VIDIOCSFBUF - invalid fbuf depth %d\n",
2236                                 ZR_DEVNAME(zr), vbuf->depth);
2237                         return -EINVAL;
2238                 }
2239
2240                 mutex_lock(&zr->resource_lock);
2241                 res =
2242                     setup_fbuffer(file, vbuf->base, &zoran_formats[i],
2243                                   vbuf->width, vbuf->height,
2244                                   vbuf->bytesperline);
2245                 mutex_unlock(&zr->resource_lock);
2246
2247                 return res;
2248         }
2249                 break;
2250
2251         case VIDIOCSYNC:
2252         {
2253                 int *frame = arg, res;
2254
2255                 dprintk(3, KERN_DEBUG "%s: VIDIOCSYNC - frame=%d\n",
2256                         ZR_DEVNAME(zr), *frame);
2257
2258                 mutex_lock(&zr->resource_lock);
2259                 res = v4l_sync(file, *frame);
2260                 mutex_unlock(&zr->resource_lock);
2261                 if (!res)
2262                         zr->v4l_sync_tail++;
2263                 return res;
2264         }
2265                 break;
2266
2267         case VIDIOCMCAPTURE:
2268         {
2269                 struct video_mmap *vmap = arg;
2270                 int res;
2271
2272                 dprintk(3,
2273                         KERN_DEBUG
2274                         "%s: VIDIOCMCAPTURE - frame=%d, geom=%dx%d, fmt=%d\n",
2275                         ZR_DEVNAME(zr), vmap->frame, vmap->width, vmap->height,
2276                         vmap->format);
2277
2278                 mutex_lock(&zr->resource_lock);
2279                 res = v4l_grab(file, vmap);
2280                 mutex_unlock(&zr->resource_lock);
2281                 return res;
2282         }
2283                 break;
2284
2285         case VIDIOCGMBUF:
2286         {
2287                 struct video_mbuf *vmbuf = arg;
2288                 int i, res = 0;
2289
2290                 dprintk(3, KERN_DEBUG "%s: VIDIOCGMBUF\n", ZR_DEVNAME(zr));
2291
2292                 vmbuf->size =
2293                     fh->v4l_buffers.num_buffers *
2294                     fh->v4l_buffers.buffer_size;
2295                 vmbuf->frames = fh->v4l_buffers.num_buffers;
2296                 for (i = 0; i < vmbuf->frames; i++) {
2297                         vmbuf->offsets[i] =
2298                             i * fh->v4l_buffers.buffer_size;
2299                 }
2300
2301                 mutex_lock(&zr->resource_lock);
2302
2303                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2304                         dprintk(1,
2305                                 KERN_ERR
2306                                 "%s: VIDIOCGMBUF - buffers already allocated\n",
2307                                 ZR_DEVNAME(zr));
2308                         res = -EINVAL;
2309                         goto v4l1reqbuf_unlock_and_return;
2310                 }
2311
2312                 if (v4l_fbuffer_alloc(file)) {
2313                         res = -ENOMEM;
2314                         goto v4l1reqbuf_unlock_and_return;
2315                 }
2316
2317                 /* The next mmap will map the V4L buffers */
2318                 fh->map_mode = ZORAN_MAP_MODE_RAW;
2319         v4l1reqbuf_unlock_and_return:
2320                 mutex_unlock(&zr->resource_lock);
2321
2322                 return res;
2323         }
2324                 break;
2325
2326         case VIDIOCGUNIT:
2327         {
2328                 struct video_unit *vunit = arg;
2329
2330                 dprintk(3, KERN_DEBUG "%s: VIDIOCGUNIT\n", ZR_DEVNAME(zr));
2331
2332                 vunit->video = zr->video_dev->minor;
2333                 vunit->vbi = VIDEO_NO_UNIT;
2334                 vunit->radio = VIDEO_NO_UNIT;
2335                 vunit->audio = VIDEO_NO_UNIT;
2336                 vunit->teletext = VIDEO_NO_UNIT;
2337
2338                 return 0;
2339         }
2340                 break;
2341
2342                 /*
2343                  * RJ: In principal we could support subcaptures for V4L grabbing.
2344                  *     Not even the famous BTTV driver has them, however.
2345                  *     If there should be a strong demand, one could consider
2346                  *     to implement them.
2347                  */
2348         case VIDIOCGCAPTURE:
2349         {
2350                 dprintk(3, KERN_ERR "%s: VIDIOCGCAPTURE not supported\n",
2351                         ZR_DEVNAME(zr));
2352                 return -EINVAL;
2353         }
2354                 break;
2355
2356         case VIDIOCSCAPTURE:
2357         {
2358                 dprintk(3, KERN_ERR "%s: VIDIOCSCAPTURE not supported\n",
2359                         ZR_DEVNAME(zr));
2360                 return -EINVAL;
2361         }
2362                 break;
2363
2364         case BUZIOC_G_PARAMS:
2365         {
2366                 struct zoran_params *bparams = arg;
2367
2368                 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_PARAMS\n", ZR_DEVNAME(zr));
2369
2370                 memset(bparams, 0, sizeof(struct zoran_params));
2371                 bparams->major_version = MAJOR_VERSION;
2372                 bparams->minor_version = MINOR_VERSION;
2373
2374                 mutex_lock(&zr->resource_lock);
2375
2376                 bparams->norm = zr->norm;
2377                 bparams->input = zr->input;
2378
2379                 bparams->decimation = fh->jpg_settings.decimation;
2380                 bparams->HorDcm = fh->jpg_settings.HorDcm;
2381                 bparams->VerDcm = fh->jpg_settings.VerDcm;
2382                 bparams->TmpDcm = fh->jpg_settings.TmpDcm;
2383                 bparams->field_per_buff = fh->jpg_settings.field_per_buff;
2384                 bparams->img_x = fh->jpg_settings.img_x;
2385                 bparams->img_y = fh->jpg_settings.img_y;
2386                 bparams->img_width = fh->jpg_settings.img_width;
2387                 bparams->img_height = fh->jpg_settings.img_height;
2388                 bparams->odd_even = fh->jpg_settings.odd_even;
2389
2390                 bparams->quality = fh->jpg_settings.jpg_comp.quality;
2391                 bparams->APPn = fh->jpg_settings.jpg_comp.APPn;
2392                 bparams->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2393                 memcpy(bparams->APP_data,
2394                        fh->jpg_settings.jpg_comp.APP_data,
2395                        sizeof(bparams->APP_data));
2396                 bparams->COM_len = zr->jpg_settings.jpg_comp.COM_len;
2397                 memcpy(bparams->COM_data,
2398                        fh->jpg_settings.jpg_comp.COM_data,
2399                        sizeof(bparams->COM_data));
2400                 bparams->jpeg_markers =
2401                     fh->jpg_settings.jpg_comp.jpeg_markers;
2402
2403                 mutex_unlock(&zr->resource_lock);
2404
2405                 bparams->VFIFO_FB = 0;
2406
2407                 return 0;
2408         }
2409                 break;
2410
2411         case BUZIOC_S_PARAMS:
2412         {
2413                 struct zoran_params *bparams = arg;
2414                 int res = 0;
2415
2416                 dprintk(3, KERN_DEBUG "%s: BUZIOC_S_PARAMS\n", ZR_DEVNAME(zr));
2417
2418                 settings.decimation = bparams->decimation;
2419                 settings.HorDcm = bparams->HorDcm;
2420                 settings.VerDcm = bparams->VerDcm;
2421                 settings.TmpDcm = bparams->TmpDcm;
2422                 settings.field_per_buff = bparams->field_per_buff;
2423                 settings.img_x = bparams->img_x;
2424                 settings.img_y = bparams->img_y;
2425                 settings.img_width = bparams->img_width;
2426                 settings.img_height = bparams->img_height;
2427                 settings.odd_even = bparams->odd_even;
2428
2429                 settings.jpg_comp.quality = bparams->quality;
2430                 settings.jpg_comp.APPn = bparams->APPn;
2431                 settings.jpg_comp.APP_len = bparams->APP_len;
2432                 memcpy(settings.jpg_comp.APP_data, bparams->APP_data,
2433                        sizeof(bparams->APP_data));
2434                 settings.jpg_comp.COM_len = bparams->COM_len;
2435                 memcpy(settings.jpg_comp.COM_data, bparams->COM_data,
2436                        sizeof(bparams->COM_data));
2437                 settings.jpg_comp.jpeg_markers = bparams->jpeg_markers;
2438
2439                 mutex_lock(&zr->resource_lock);
2440
2441                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2442                         dprintk(1,
2443                                 KERN_ERR
2444                                 "%s: BUZIOC_S_PARAMS called, but Buz in capture/playback mode\n",
2445                                 ZR_DEVNAME(zr));
2446                         res = -EINVAL;
2447                         goto sparams_unlock_and_return;
2448                 }
2449
2450                 /* Check the params first before overwriting our
2451                  * nternal values */
2452                 if (zoran_check_jpg_settings(zr, &settings)) {
2453                         res = -EINVAL;
2454                         goto sparams_unlock_and_return;
2455                 }
2456
2457                 fh->jpg_settings = settings;
2458         sparams_unlock_and_return:
2459                 mutex_unlock(&zr->resource_lock);
2460
2461                 return res;
2462         }
2463                 break;
2464
2465         case BUZIOC_REQBUFS:
2466         {
2467                 struct zoran_requestbuffers *breq = arg;
2468                 int res = 0;
2469
2470                 dprintk(3,
2471                         KERN_DEBUG
2472                         "%s: BUZIOC_REQBUFS - count=%lu, size=%lu\n",
2473                         ZR_DEVNAME(zr), breq->count, breq->size);
2474
2475                 /* Enforce reasonable lower and upper limits */
2476                 if (breq->count < 4)
2477                         breq->count = 4;        /* Could be choosen smaller */
2478                 if (breq->count > jpg_nbufs)
2479                         breq->count = jpg_nbufs;
2480                 breq->size = PAGE_ALIGN(breq->size);
2481                 if (breq->size < 8192)
2482                         breq->size = 8192;      /* Arbitrary */
2483                 /* breq->size is limited by 1 page for the stat_com
2484                  * tables to a Maximum of 2 MB */
2485                 if (breq->size > jpg_bufsize)
2486                         breq->size = jpg_bufsize;
2487                 if (fh->jpg_buffers.need_contiguous &&
2488                     breq->size > MAX_KMALLOC_MEM)
2489                         breq->size = MAX_KMALLOC_MEM;
2490
2491                 mutex_lock(&zr->resource_lock);
2492
2493                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
2494                         dprintk(1,
2495                                 KERN_ERR
2496                                 "%s: BUZIOC_REQBUFS - buffers allready allocated\n",
2497                                 ZR_DEVNAME(zr));
2498                         res = -EBUSY;
2499                         goto jpgreqbuf_unlock_and_return;
2500                 }
2501
2502                 fh->jpg_buffers.num_buffers = breq->count;
2503                 fh->jpg_buffers.buffer_size = breq->size;
2504
2505                 if (jpg_fbuffer_alloc(file)) {
2506                         res = -ENOMEM;
2507                         goto jpgreqbuf_unlock_and_return;
2508                 }
2509
2510                 /* The next mmap will map the MJPEG buffers - could
2511                  * also be *_PLAY, but it doesn't matter here */
2512                 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
2513         jpgreqbuf_unlock_and_return:
2514                 mutex_unlock(&zr->resource_lock);
2515
2516                 return res;
2517         }
2518                 break;
2519
2520         case BUZIOC_QBUF_CAPT:
2521         {
2522                 int *frame = arg, res;
2523
2524                 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_CAPT - frame=%d\n",
2525                         ZR_DEVNAME(zr), *frame);
2526
2527                 mutex_lock(&zr->resource_lock);
2528                 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_COMPRESS);
2529                 mutex_unlock(&zr->resource_lock);
2530
2531                 return res;
2532         }
2533                 break;
2534
2535         case BUZIOC_QBUF_PLAY:
2536         {
2537                 int *frame = arg, res;
2538
2539                 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_PLAY - frame=%d\n",
2540                         ZR_DEVNAME(zr), *frame);
2541
2542                 mutex_lock(&zr->resource_lock);
2543                 res = jpg_qbuf(file, *frame, BUZ_MODE_MOTION_DECOMPRESS);
2544                 mutex_unlock(&zr->resource_lock);
2545
2546                 return res;
2547         }
2548                 break;
2549
2550         case BUZIOC_SYNC:
2551         {
2552                 struct zoran_sync *bsync = arg;
2553                 int res;
2554
2555                 dprintk(3, KERN_DEBUG "%s: BUZIOC_SYNC\n", ZR_DEVNAME(zr));
2556
2557                 mutex_lock(&zr->resource_lock);
2558                 res = jpg_sync(file, bsync);
2559                 mutex_unlock(&zr->resource_lock);
2560
2561                 return res;
2562         }
2563                 break;
2564
2565         case BUZIOC_G_STATUS:
2566         {
2567                 struct zoran_status *bstat = arg;
2568                 int norm, input, status, res = 0;
2569
2570                 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_STATUS\n", ZR_DEVNAME(zr));
2571
2572                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2573                         dprintk(1,
2574                                 KERN_ERR
2575                                 "%s: BUZIOC_G_STATUS called but Buz in capture/playback mode\n",
2576                                 ZR_DEVNAME(zr));
2577                         return -EINVAL;
2578                 }
2579
2580                 input = zr->card.input[bstat->input].muxsel;
2581                 norm = VIDEO_MODE_AUTO;
2582
2583                 mutex_lock(&zr->resource_lock);
2584
2585                 if (zr->codec_mode != BUZ_MODE_IDLE) {
2586                         dprintk(1,
2587                                 KERN_ERR
2588                                 "%s: BUZIOC_G_STATUS called, but Buz in capture/playback mode\n",
2589                                 ZR_DEVNAME(zr));
2590                         res = -EINVAL;
2591                         goto gstat_unlock_and_return;
2592                 }
2593
2594                 decoder_command(zr, DECODER_SET_INPUT, &input);
2595                 decoder_command(zr, DECODER_SET_NORM, &norm);
2596
2597                 /* sleep 1 second */
2598                 ssleep(1);
2599
2600                 /* Get status of video decoder */
2601                 decoder_command(zr, DECODER_GET_STATUS, &status);
2602
2603                 /* restore previous input and norm */
2604                 input = zr->card.input[zr->input].muxsel;
2605                 decoder_command(zr, DECODER_SET_INPUT, &input);
2606                 decoder_command(zr, DECODER_SET_NORM, &zr->norm);
2607         gstat_unlock_and_return:
2608                 mutex_unlock(&zr->resource_lock);
2609
2610                 if (!res) {
2611                         bstat->signal =
2612                             (status & DECODER_STATUS_GOOD) ? 1 : 0;
2613                         if (status & DECODER_STATUS_NTSC)
2614                                 bstat->norm = VIDEO_MODE_NTSC;
2615                         else if (status & DECODER_STATUS_SECAM)
2616                                 bstat->norm = VIDEO_MODE_SECAM;
2617                         else
2618                                 bstat->norm = VIDEO_MODE_PAL;
2619
2620                         bstat->color =
2621                             (status & DECODER_STATUS_COLOR) ? 1 : 0;
2622                 }
2623
2624                 return res;
2625         }
2626                 break;
2627
2628 #ifdef CONFIG_VIDEO_V4L2
2629
2630                 /* The new video4linux2 capture interface - much nicer than video4linux1, since
2631                  * it allows for integrating the JPEG capturing calls inside standard v4l2
2632                  */
2633
2634         case VIDIOC_QUERYCAP:
2635         {
2636                 struct v4l2_capability *cap = arg;
2637
2638                 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCAP\n", ZR_DEVNAME(zr));
2639
2640                 memset(cap, 0, sizeof(*cap));
2641                 strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
2642                 strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
2643                 snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
2644                          pci_name(zr->pci_dev));
2645                 cap->version =
2646                     KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION,
2647                                    RELEASE_VERSION);
2648                 cap->capabilities = ZORAN_V4L2_VID_FLAGS;
2649
2650                 return 0;
2651         }
2652                 break;
2653
2654         case VIDIOC_ENUM_FMT:
2655         {
2656                 struct v4l2_fmtdesc *fmt = arg;
2657                 int index = fmt->index, num = -1, i, flag = 0, type =
2658                     fmt->type;
2659
2660                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUM_FMT - index=%d\n",
2661                         ZR_DEVNAME(zr), fmt->index);
2662
2663                 switch (fmt->type) {
2664                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2665                         flag = ZORAN_FORMAT_CAPTURE;
2666                         break;
2667                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2668                         flag = ZORAN_FORMAT_PLAYBACK;
2669                         break;
2670                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2671                         flag = ZORAN_FORMAT_OVERLAY;
2672                         break;
2673                 default:
2674                         dprintk(1,
2675                                 KERN_ERR
2676                                 "%s: VIDIOC_ENUM_FMT - unknown type %d\n",
2677                                 ZR_DEVNAME(zr), fmt->type);
2678                         return -EINVAL;
2679                 }
2680
2681                 for (i = 0; i < NUM_FORMATS; i++) {
2682                         if (zoran_formats[i].flags & flag)
2683                                 num++;
2684                         if (num == fmt->index)
2685                                 break;
2686                 }
2687                 if (fmt->index < 0 /* late, but not too late */  ||
2688                     i == NUM_FORMATS)
2689                         return -EINVAL;
2690
2691                 memset(fmt, 0, sizeof(*fmt));
2692                 fmt->index = index;
2693                 fmt->type = type;
2694                 strncpy(fmt->description, zoran_formats[i].name, sizeof(fmt->description)-1);
2695                 fmt->pixelformat = zoran_formats[i].fourcc;
2696                 if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
2697                         fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
2698
2699                 return 0;
2700         }
2701                 break;
2702
2703         case VIDIOC_G_FMT:
2704         {
2705                 struct v4l2_format *fmt = arg;
2706                 int type = fmt->type;
2707
2708                 dprintk(5, KERN_DEBUG "%s: VIDIOC_G_FMT\n", ZR_DEVNAME(zr));
2709
2710                 memset(fmt, 0, sizeof(*fmt));
2711                 fmt->type = type;
2712
2713                 switch (fmt->type) {
2714                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2715
2716                         mutex_lock(&zr->resource_lock);
2717
2718                         fmt->fmt.win.w.left = fh->overlay_settings.x;
2719                         fmt->fmt.win.w.top = fh->overlay_settings.y;
2720                         fmt->fmt.win.w.width = fh->overlay_settings.width;
2721                         fmt->fmt.win.w.height =
2722                             fh->overlay_settings.height;
2723                         if (fh->overlay_settings.width * 2 >
2724                             BUZ_MAX_HEIGHT)
2725                                 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
2726                         else
2727                                 fmt->fmt.win.field = V4L2_FIELD_TOP;
2728
2729                         mutex_unlock(&zr->resource_lock);
2730
2731                         break;
2732
2733                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2734                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2735
2736                         mutex_lock(&zr->resource_lock);
2737
2738                         if (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE &&
2739                             fh->map_mode == ZORAN_MAP_MODE_RAW) {
2740
2741                                 fmt->fmt.pix.width =
2742                                     fh->v4l_settings.width;
2743                                 fmt->fmt.pix.height =
2744                                     fh->v4l_settings.height;
2745                                 fmt->fmt.pix.sizeimage =
2746                                     fh->v4l_settings.bytesperline *
2747                                     fh->v4l_settings.height;
2748                                 fmt->fmt.pix.pixelformat =
2749                                     fh->v4l_settings.format->fourcc;
2750                                 fmt->fmt.pix.colorspace =
2751                                     fh->v4l_settings.format->colorspace;
2752                                 fmt->fmt.pix.bytesperline = 0;
2753                                 if (BUZ_MAX_HEIGHT <
2754                                     (fh->v4l_settings.height * 2))
2755                                         fmt->fmt.pix.field =
2756                                             V4L2_FIELD_INTERLACED;
2757                                 else
2758                                         fmt->fmt.pix.field =
2759                                             V4L2_FIELD_TOP;
2760
2761                         } else {
2762
2763                                 fmt->fmt.pix.width =
2764                                     fh->jpg_settings.img_width /
2765                                     fh->jpg_settings.HorDcm;
2766                                 fmt->fmt.pix.height =
2767                                     fh->jpg_settings.img_height /
2768                                     (fh->jpg_settings.VerDcm *
2769                                      fh->jpg_settings.TmpDcm);
2770                                 fmt->fmt.pix.sizeimage =
2771                                     zoran_v4l2_calc_bufsize(&fh->
2772                                                             jpg_settings);
2773                                 fmt->fmt.pix.pixelformat =
2774                                     V4L2_PIX_FMT_MJPEG;
2775                                 if (fh->jpg_settings.TmpDcm == 1)
2776                                         fmt->fmt.pix.field =
2777                                             (fh->jpg_settings.
2778                                              odd_even ? V4L2_FIELD_SEQ_BT :
2779                                              V4L2_FIELD_SEQ_BT);
2780                                 else
2781                                         fmt->fmt.pix.field =
2782                                             (fh->jpg_settings.
2783                                              odd_even ? V4L2_FIELD_TOP :
2784                                              V4L2_FIELD_BOTTOM);
2785
2786                                 fmt->fmt.pix.bytesperline = 0;
2787                                 fmt->fmt.pix.colorspace =
2788                                     V4L2_COLORSPACE_SMPTE170M;
2789                         }
2790
2791                         mutex_unlock(&zr->resource_lock);
2792
2793                         break;
2794
2795                 default:
2796                         dprintk(1,
2797                                 KERN_ERR
2798                                 "%s: VIDIOC_G_FMT - unsupported type %d\n",
2799                                 ZR_DEVNAME(zr), fmt->type);
2800                         return -EINVAL;
2801                 }
2802                 return 0;
2803         }
2804                 break;
2805
2806         case VIDIOC_S_FMT:
2807         {
2808                 struct v4l2_format *fmt = arg;
2809                 int i, res = 0;
2810                 __u32 printformat;
2811
2812                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_FMT - type=%d, ",
2813                         ZR_DEVNAME(zr), fmt->type);
2814
2815                 switch (fmt->type) {
2816                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
2817
2818                         dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
2819                                 fmt->fmt.win.w.left, fmt->fmt.win.w.top,
2820                                 fmt->fmt.win.w.width,
2821                                 fmt->fmt.win.w.height,
2822                                 fmt->fmt.win.clipcount,
2823                                 fmt->fmt.win.bitmap);
2824                         mutex_lock(&zr->resource_lock);
2825                         res =
2826                             setup_window(file, fmt->fmt.win.w.left,
2827                                          fmt->fmt.win.w.top,
2828                                          fmt->fmt.win.w.width,
2829                                          fmt->fmt.win.w.height,
2830                                          (struct video_clip __user *)
2831                                            fmt->fmt.win.clips,
2832                                          fmt->fmt.win.clipcount,
2833                                          fmt->fmt.win.bitmap);
2834                         mutex_unlock(&zr->resource_lock);
2835                         return res;
2836                         break;
2837
2838                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
2839                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
2840
2841                         printformat =
2842                             __cpu_to_le32(fmt->fmt.pix.pixelformat);
2843                         dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
2844                                 fmt->fmt.pix.width, fmt->fmt.pix.height,
2845                                 fmt->fmt.pix.pixelformat,
2846                                 (char *) &printformat);
2847
2848                         if (fmt->fmt.pix.bytesperline > 0) {
2849                                 dprintk(5,
2850                                         KERN_ERR "%s: bpl not supported\n",
2851                                         ZR_DEVNAME(zr));
2852                                 return -EINVAL;
2853                         }
2854
2855                         /* we can be requested to do JPEG/raw playback/capture */
2856                         if (!
2857                             (fmt->type == V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2858                              (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2859                               fmt->fmt.pix.pixelformat ==
2860                               V4L2_PIX_FMT_MJPEG))) {
2861                                 dprintk(1,
2862                                         KERN_ERR
2863                                         "%s: VIDIOC_S_FMT - unknown type %d/0x%x(%4.4s) combination\n",
2864                                         ZR_DEVNAME(zr), fmt->type,
2865                                         fmt->fmt.pix.pixelformat,
2866                                         (char *) &printformat);
2867                                 return -EINVAL;
2868                         }
2869
2870                         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
2871                                 mutex_lock(&zr->resource_lock);
2872
2873                                 settings = fh->jpg_settings;
2874
2875                                 if (fh->v4l_buffers.allocated ||
2876                                     fh->jpg_buffers.allocated) {
2877                                         dprintk(1,
2878                                                 KERN_ERR
2879                                                 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2880                                                 ZR_DEVNAME(zr));
2881                                         res = -EBUSY;
2882                                         goto sfmtjpg_unlock_and_return;
2883                                 }
2884
2885                                 /* we actually need to set 'real' parameters now */
2886                                 if ((fmt->fmt.pix.height * 2) >
2887                                     BUZ_MAX_HEIGHT)
2888                                         settings.TmpDcm = 1;
2889                                 else
2890                                         settings.TmpDcm = 2;
2891                                 settings.decimation = 0;
2892                                 if (fmt->fmt.pix.height <=
2893                                     fh->jpg_settings.img_height / 2)
2894                                         settings.VerDcm = 2;
2895                                 else
2896                                         settings.VerDcm = 1;
2897                                 if (fmt->fmt.pix.width <=
2898                                     fh->jpg_settings.img_width / 4)
2899                                         settings.HorDcm = 4;
2900                                 else if (fmt->fmt.pix.width <=
2901                                          fh->jpg_settings.img_width / 2)
2902                                         settings.HorDcm = 2;
2903                                 else
2904                                         settings.HorDcm = 1;
2905                                 if (settings.TmpDcm == 1)
2906                                         settings.field_per_buff = 2;
2907                                 else
2908                                         settings.field_per_buff = 1;
2909
2910                                 /* check */
2911                                 if ((res =
2912                                      zoran_check_jpg_settings(zr,
2913                                                               &settings)))
2914                                         goto sfmtjpg_unlock_and_return;
2915
2916                                 /* it's ok, so set them */
2917                                 fh->jpg_settings = settings;
2918
2919                                 /* tell the user what we actually did */
2920                                 fmt->fmt.pix.width =
2921                                     settings.img_width / settings.HorDcm;
2922                                 fmt->fmt.pix.height =
2923                                     settings.img_height * 2 /
2924                                     (settings.TmpDcm * settings.VerDcm);
2925                                 if (settings.TmpDcm == 1)
2926                                         fmt->fmt.pix.field =
2927                                             (fh->jpg_settings.
2928                                              odd_even ? V4L2_FIELD_SEQ_TB :
2929                                              V4L2_FIELD_SEQ_BT);
2930                                 else
2931                                         fmt->fmt.pix.field =
2932                                             (fh->jpg_settings.
2933                                              odd_even ? V4L2_FIELD_TOP :
2934                                              V4L2_FIELD_BOTTOM);
2935                                 fh->jpg_buffers.buffer_size =
2936                                     zoran_v4l2_calc_bufsize(&fh->
2937                                                             jpg_settings);
2938                                 fmt->fmt.pix.sizeimage =
2939                                     fh->jpg_buffers.buffer_size;
2940
2941                                 /* we hereby abuse this variable to show that
2942                                  * we're gonna do mjpeg capture */
2943                                 fh->map_mode =
2944                                     (fmt->type ==
2945                                      V4L2_BUF_TYPE_VIDEO_CAPTURE) ?
2946                                     ZORAN_MAP_MODE_JPG_REC :
2947                                     ZORAN_MAP_MODE_JPG_PLAY;
2948                         sfmtjpg_unlock_and_return:
2949                                 mutex_unlock(&zr->resource_lock);
2950                         } else {
2951                                 for (i = 0; i < NUM_FORMATS; i++)
2952                                         if (fmt->fmt.pix.pixelformat ==
2953                                             zoran_formats[i].fourcc)
2954                                                 break;
2955                                 if (i == NUM_FORMATS) {
2956                                         dprintk(1,
2957                                                 KERN_ERR
2958                                                 "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x (%4.4s)\n",
2959                                                 ZR_DEVNAME(zr),
2960                                                 fmt->fmt.pix.pixelformat,
2961                                                 (char *) &printformat);
2962                                         return -EINVAL;
2963                                 }
2964                                 mutex_lock(&zr->resource_lock);
2965                                 if (fh->jpg_buffers.allocated ||
2966                                     (fh->v4l_buffers.allocated &&
2967                                      fh->v4l_buffers.active !=
2968                                      ZORAN_FREE)) {
2969                                         dprintk(1,
2970                                                 KERN_ERR
2971                                                 "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2972                                                 ZR_DEVNAME(zr));
2973                                         res = -EBUSY;
2974                                         goto sfmtv4l_unlock_and_return;
2975                                 }
2976                                 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
2977                                         fmt->fmt.pix.height =
2978                                             BUZ_MAX_HEIGHT;
2979                                 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
2980                                         fmt->fmt.pix.width = BUZ_MAX_WIDTH;
2981
2982                                 if ((res =
2983                                      zoran_v4l_set_format(file,
2984                                                           fmt->fmt.pix.
2985                                                           width,
2986                                                           fmt->fmt.pix.
2987                                                           height,
2988                                                           &zoran_formats
2989                                                           [i])))
2990                                         goto sfmtv4l_unlock_and_return;
2991
2992                                 /* tell the user the
2993                                  * results/missing stuff */
2994                                 fmt->fmt.pix.sizeimage =
2995                                         fh->v4l_settings.height *
2996                                         fh->v4l_settings.bytesperline;
2997                                 if (BUZ_MAX_HEIGHT <
2998                                     (fh->v4l_settings.height * 2))
2999                                         fmt->fmt.pix.field =
3000                                             V4L2_FIELD_INTERLACED;
3001                                 else
3002                                         fmt->fmt.pix.field =
3003                                             V4L2_FIELD_TOP;
3004
3005                                 fh->map_mode = ZORAN_MAP_MODE_RAW;
3006                         sfmtv4l_unlock_and_return:
3007                                 mutex_unlock(&zr->resource_lock);
3008                         }
3009
3010                         break;
3011
3012                 default:
3013                         dprintk(3, "unsupported\n");
3014                         dprintk(1,
3015                                 KERN_ERR
3016                                 "%s: VIDIOC_S_FMT - unsupported type %d\n",
3017                                 ZR_DEVNAME(zr), fmt->type);
3018                         return -EINVAL;
3019                 }
3020
3021                 return res;
3022         }
3023                 break;
3024
3025         case VIDIOC_G_FBUF:
3026         {
3027                 struct v4l2_framebuffer *fb = arg;
3028
3029                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_FBUF\n", ZR_DEVNAME(zr));
3030
3031                 memset(fb, 0, sizeof(*fb));
3032                 mutex_lock(&zr->resource_lock);
3033                 fb->base = zr->buffer.base;
3034                 fb->fmt.width = zr->buffer.width;
3035                 fb->fmt.height = zr->buffer.height;
3036                 if (zr->overlay_settings.format) {
3037                         fb->fmt.pixelformat =
3038                                 fh->overlay_settings.format->fourcc;
3039                 }
3040                 fb->fmt.bytesperline = zr->buffer.bytesperline;
3041                 mutex_unlock(&zr->resource_lock);
3042                 fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
3043                 fb->fmt.field = V4L2_FIELD_INTERLACED;
3044                 fb->flags = V4L2_FBUF_FLAG_OVERLAY;
3045                 fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
3046
3047                 return 0;
3048         }
3049                 break;
3050
3051         case VIDIOC_S_FBUF:
3052         {
3053                 int i, res = 0;
3054                 struct v4l2_framebuffer *fb = arg;
3055                 __u32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
3056
3057                 dprintk(3,
3058                         KERN_DEBUG
3059                         "%s: VIDIOC_S_FBUF - base=0x%p, size=%dx%d, bpl=%d, fmt=0x%x (%4.4s)\n",
3060                         ZR_DEVNAME(zr), fb->base, fb->fmt.width, fb->fmt.height,
3061                         fb->fmt.bytesperline, fb->fmt.pixelformat,
3062                         (char *) &printformat);
3063
3064                 for (i = 0; i < NUM_FORMATS; i++)
3065                         if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
3066                                 break;
3067                 if (i == NUM_FORMATS) {
3068                         dprintk(1,
3069                                 KERN_ERR
3070                                 "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
3071                                 ZR_DEVNAME(zr), fb->fmt.pixelformat,
3072                                 (char *) &printformat);
3073                         return -EINVAL;
3074                 }
3075
3076                 mutex_lock(&zr->resource_lock);
3077                 res =
3078                     setup_fbuffer(file, fb->base, &zoran_formats[i],
3079                                   fb->fmt.width, fb->fmt.height,
3080                                   fb->fmt.bytesperline);
3081                 mutex_unlock(&zr->resource_lock);
3082
3083                 return res;
3084         }
3085                 break;
3086
3087         case VIDIOC_OVERLAY:
3088         {
3089                 int *on = arg, res;
3090
3091                 dprintk(3, KERN_DEBUG "%s: VIDIOC_PREVIEW - on=%d\n",
3092                         ZR_DEVNAME(zr), *on);
3093
3094                 mutex_lock(&zr->resource_lock);
3095                 res = setup_overlay(file, *on);
3096                 mutex_unlock(&zr->resource_lock);
3097
3098                 return res;
3099         }
3100                 break;
3101
3102         case VIDIOC_REQBUFS:
3103         {
3104                 struct v4l2_requestbuffers *req = arg;
3105                 int res = 0;
3106
3107                 dprintk(3, KERN_DEBUG "%s: VIDIOC_REQBUFS - type=%d\n",
3108                         ZR_DEVNAME(zr), req->type);
3109
3110                 if (req->memory != V4L2_MEMORY_MMAP) {
3111                         dprintk(1,
3112                                 KERN_ERR
3113                                 "%s: only MEMORY_MMAP capture is supported, not %d\n",
3114                                 ZR_DEVNAME(zr), req->memory);
3115                         return -EINVAL;
3116                 }
3117
3118                 mutex_lock(&zr->resource_lock);
3119
3120                 if (fh->v4l_buffers.allocated || fh->jpg_buffers.allocated) {
3121                         dprintk(1,
3122                                 KERN_ERR
3123                                 "%s: VIDIOC_REQBUFS - buffers allready allocated\n",
3124                                 ZR_DEVNAME(zr));
3125                         res = -EBUSY;
3126                         goto v4l2reqbuf_unlock_and_return;
3127                 }
3128
3129                 if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
3130                     req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3131
3132                         /* control user input */
3133                         if (req->count < 2)
3134                                 req->count = 2;
3135                         if (req->count > v4l_nbufs)
3136                                 req->count = v4l_nbufs;
3137                         fh->v4l_buffers.num_buffers = req->count;
3138
3139                         if (v4l_fbuffer_alloc(file)) {
3140                                 res = -ENOMEM;
3141                                 goto v4l2reqbuf_unlock_and_return;
3142                         }
3143
3144                         /* The next mmap will map the V4L buffers */
3145                         fh->map_mode = ZORAN_MAP_MODE_RAW;
3146
3147                 } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
3148                            fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3149
3150                         /* we need to calculate size ourselves now */
3151                         if (req->count < 4)
3152                                 req->count = 4;
3153                         if (req->count > jpg_nbufs)
3154                                 req->count = jpg_nbufs;
3155                         fh->jpg_buffers.num_buffers = req->count;
3156                         fh->jpg_buffers.buffer_size =
3157                             zoran_v4l2_calc_bufsize(&fh->jpg_settings);
3158
3159                         if (jpg_fbuffer_alloc(file)) {
3160                                 res = -ENOMEM;
3161                                 goto v4l2reqbuf_unlock_and_return;
3162                         }
3163
3164                         /* The next mmap will map the MJPEG buffers */
3165                         if (req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
3166                                 fh->map_mode = ZORAN_MAP_MODE_JPG_REC;
3167                         else
3168                                 fh->map_mode = ZORAN_MAP_MODE_JPG_PLAY;
3169
3170                 } else {
3171                         dprintk(1,
3172                                 KERN_ERR
3173                                 "%s: VIDIOC_REQBUFS - unknown type %d\n",
3174                                 ZR_DEVNAME(zr), req->type);
3175                         res = -EINVAL;
3176                         goto v4l2reqbuf_unlock_and_return;
3177                 }
3178         v4l2reqbuf_unlock_and_return:
3179                 mutex_unlock(&zr->resource_lock);
3180
3181                 return 0;
3182         }
3183                 break;
3184
3185         case VIDIOC_QUERYBUF:
3186         {
3187                 struct v4l2_buffer *buf = arg;
3188                 __u32 type = buf->type;
3189                 int index = buf->index, res;
3190
3191                 dprintk(3,
3192                         KERN_DEBUG
3193                         "%s: VIDIOC_QUERYBUF - index=%d, type=%d\n",
3194                         ZR_DEVNAME(zr), buf->index, buf->type);
3195
3196                 memset(buf, 0, sizeof(*buf));
3197                 buf->type = type;
3198                 buf->index = index;
3199
3200                 mutex_lock(&zr->resource_lock);
3201                 res = zoran_v4l2_buffer_status(file, buf, buf->index);
3202                 mutex_unlock(&zr->resource_lock);
3203
3204                 return res;
3205         }
3206                 break;
3207
3208         case VIDIOC_QBUF:
3209         {
3210                 struct v4l2_buffer *buf = arg;
3211                 int res = 0, codec_mode, buf_type;
3212
3213                 dprintk(3,
3214                         KERN_DEBUG "%s: VIDIOC_QBUF - type=%d, index=%d\n",
3215                         ZR_DEVNAME(zr), buf->type, buf->index);
3216
3217                 mutex_lock(&zr->resource_lock);
3218
3219                 switch (fh->map_mode) {
3220                 case ZORAN_MAP_MODE_RAW:
3221                         if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3222                                 dprintk(1,
3223                                         KERN_ERR
3224                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3225                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3226                                 res = -EINVAL;
3227                                 goto qbuf_unlock_and_return;
3228                         }
3229
3230                         res = zoran_v4l_queue_frame(file, buf->index);
3231                         if (res)
3232                                 goto qbuf_unlock_and_return;
3233                         if (!zr->v4l_memgrab_active &&
3234                             fh->v4l_buffers.active == ZORAN_LOCKED)
3235                                 zr36057_set_memgrab(zr, 1);
3236                         break;
3237
3238                 case ZORAN_MAP_MODE_JPG_REC:
3239                 case ZORAN_MAP_MODE_JPG_PLAY:
3240                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
3241                                 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3242                                 codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
3243                         } else {
3244                                 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3245                                 codec_mode = BUZ_MODE_MOTION_COMPRESS;
3246                         }
3247
3248                         if (buf->type != buf_type) {
3249                                 dprintk(1,
3250                                         KERN_ERR
3251                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3252                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3253                                 res = -EINVAL;
3254                                 goto qbuf_unlock_and_return;
3255                         }
3256
3257                         res =
3258                             zoran_jpg_queue_frame(file, buf->index,
3259                                                   codec_mode);
3260                         if (res != 0)
3261                                 goto qbuf_unlock_and_return;
3262                         if (zr->codec_mode == BUZ_MODE_IDLE &&
3263                             fh->jpg_buffers.active == ZORAN_LOCKED) {
3264                                 zr36057_enable_jpg(zr, codec_mode);
3265                         }
3266                         break;
3267
3268                 default:
3269                         dprintk(1,
3270                                 KERN_ERR
3271                                 "%s: VIDIOC_QBUF - unsupported type %d\n",
3272                                 ZR_DEVNAME(zr), buf->type);
3273                         res = -EINVAL;
3274                         goto qbuf_unlock_and_return;
3275                 }
3276         qbuf_unlock_and_return:
3277                 mutex_unlock(&zr->resource_lock);
3278
3279                 return res;
3280         }
3281                 break;
3282
3283         case VIDIOC_DQBUF:
3284         {
3285                 struct v4l2_buffer *buf = arg;
3286                 int res = 0, buf_type, num = -1;        /* compiler borks here (?) */
3287
3288                 dprintk(3, KERN_DEBUG "%s: VIDIOC_DQBUF - type=%d\n",
3289                         ZR_DEVNAME(zr), buf->type);
3290
3291                 mutex_lock(&zr->resource_lock);
3292
3293                 switch (fh->map_mode) {
3294                 case ZORAN_MAP_MODE_RAW:
3295                         if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
3296                                 dprintk(1,
3297                                         KERN_ERR
3298                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3299                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3300                                 res = -EINVAL;
3301                                 goto dqbuf_unlock_and_return;
3302                         }
3303
3304                         num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
3305                         if (file->f_flags & O_NONBLOCK &&
3306                             zr->v4l_buffers.buffer[num].state !=
3307                             BUZ_STATE_DONE) {
3308                                 res = -EAGAIN;
3309                                 goto dqbuf_unlock_and_return;
3310                         }
3311                         res = v4l_sync(file, num);
3312                         if (res)
3313                                 goto dqbuf_unlock_and_return;
3314                         else
3315                                 zr->v4l_sync_tail++;
3316                         res = zoran_v4l2_buffer_status(file, buf, num);
3317                         break;
3318
3319                 case ZORAN_MAP_MODE_JPG_REC:
3320                 case ZORAN_MAP_MODE_JPG_PLAY:
3321                 {
3322                         struct zoran_sync bs;
3323
3324                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
3325                                 buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
3326                         else
3327                                 buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
3328
3329                         if (buf->type != buf_type) {
3330                                 dprintk(1,
3331                                         KERN_ERR
3332                                         "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
3333                                         ZR_DEVNAME(zr), buf->type, fh->map_mode);
3334                                 res = -EINVAL;
3335                                 goto dqbuf_unlock_and_return;
3336                         }
3337
3338                         num =
3339                             zr->jpg_pend[zr->
3340                                          jpg_que_tail & BUZ_MASK_FRAME];
3341
3342                         if (file->f_flags & O_NONBLOCK &&
3343                             zr->jpg_buffers.buffer[num].state !=
3344                             BUZ_STATE_DONE) {
3345                                 res = -EAGAIN;
3346                                 goto dqbuf_unlock_and_return;
3347                         }
3348                         res = jpg_sync(file, &bs);
3349                         if (res)
3350                                 goto dqbuf_unlock_and_return;
3351                         res =
3352                             zoran_v4l2_buffer_status(file, buf, bs.frame);
3353                         break;
3354                 }
3355
3356                 default:
3357                         dprintk(1,
3358                                 KERN_ERR
3359                                 "%s: VIDIOC_DQBUF - unsupported type %d\n",
3360                                 ZR_DEVNAME(zr), buf->type);
3361                         res = -EINVAL;
3362                         goto dqbuf_unlock_and_return;
3363                 }
3364         dqbuf_unlock_and_return:
3365                 mutex_unlock(&zr->resource_lock);
3366
3367                 return res;
3368         }
3369                 break;
3370
3371         case VIDIOC_STREAMON:
3372         {
3373                 int res = 0;
3374
3375                 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMON\n", ZR_DEVNAME(zr));
3376
3377                 mutex_lock(&zr->resource_lock);
3378
3379                 switch (fh->map_mode) {
3380                 case ZORAN_MAP_MODE_RAW:        /* raw capture */
3381                         if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
3382                             fh->v4l_buffers.active != ZORAN_ACTIVE) {
3383                                 res = -EBUSY;
3384                                 goto strmon_unlock_and_return;
3385                         }
3386
3387                         zr->v4l_buffers.active = fh->v4l_buffers.active =
3388                             ZORAN_LOCKED;
3389                         zr->v4l_settings = fh->v4l_settings;
3390
3391                         zr->v4l_sync_tail = zr->v4l_pend_tail;
3392                         if (!zr->v4l_memgrab_active &&
3393                             zr->v4l_pend_head != zr->v4l_pend_tail) {
3394                                 zr36057_set_memgrab(zr, 1);
3395                         }
3396                         break;
3397
3398                 case ZORAN_MAP_MODE_JPG_REC:
3399                 case ZORAN_MAP_MODE_JPG_PLAY:
3400                         /* what is the codec mode right now? */
3401                         if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
3402                             fh->jpg_buffers.active != ZORAN_ACTIVE) {
3403                                 res = -EBUSY;
3404                                 goto strmon_unlock_and_return;
3405                         }
3406
3407                         zr->jpg_buffers.active = fh->jpg_buffers.active =
3408                             ZORAN_LOCKED;
3409
3410                         if (zr->jpg_que_head != zr->jpg_que_tail) {
3411                                 /* Start the jpeg codec when the first frame is queued  */
3412                                 jpeg_start(zr);
3413                         }
3414
3415                         break;
3416                 default:
3417                         dprintk(1,
3418                                 KERN_ERR
3419                                 "%s: VIDIOC_STREAMON - invalid map mode %d\n",
3420                                 ZR_DEVNAME(zr), fh->map_mode);
3421                         res = -EINVAL;
3422                         goto strmon_unlock_and_return;
3423                 }
3424         strmon_unlock_and_return:
3425                 mutex_unlock(&zr->resource_lock);
3426
3427                 return res;
3428         }
3429                 break;
3430
3431         case VIDIOC_STREAMOFF:
3432         {
3433                 int i, res = 0;
3434
3435                 dprintk(3, KERN_DEBUG "%s: VIDIOC_STREAMOFF\n", ZR_DEVNAME(zr));
3436
3437                 mutex_lock(&zr->resource_lock);
3438
3439                 switch (fh->map_mode) {
3440                 case ZORAN_MAP_MODE_RAW:        /* raw capture */
3441                         if (fh->v4l_buffers.active == ZORAN_FREE &&
3442                             zr->v4l_buffers.active != ZORAN_FREE) {
3443                                 res = -EPERM;   /* stay off other's settings! */
3444                                 goto strmoff_unlock_and_return;
3445                         }
3446                         if (zr->v4l_buffers.active == ZORAN_FREE)
3447                                 goto strmoff_unlock_and_return;
3448
3449                         /* unload capture */
3450                         if (zr->v4l_memgrab_active) {
3451                                 long flags;
3452
3453                                 spin_lock_irqsave(&zr->spinlock, flags);
3454                                 zr36057_set_memgrab(zr, 0);
3455                                 spin_unlock_irqrestore(&zr->spinlock, flags);
3456                         }
3457
3458                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
3459                                 zr->v4l_buffers.buffer[i].state =
3460                                     BUZ_STATE_USER;
3461                         fh->v4l_buffers = zr->v4l_buffers;
3462
3463                         zr->v4l_buffers.active = fh->v4l_buffers.active =
3464                             ZORAN_FREE;
3465
3466                         zr->v4l_grab_seq = 0;
3467                         zr->v4l_pend_head = zr->v4l_pend_tail = 0;
3468                         zr->v4l_sync_tail = 0;
3469
3470                         break;
3471
3472                 case ZORAN_MAP_MODE_JPG_REC:
3473                 case ZORAN_MAP_MODE_JPG_PLAY:
3474                         if (fh->jpg_buffers.active == ZORAN_FREE &&
3475                             zr->jpg_buffers.active != ZORAN_FREE) {
3476                                 res = -EPERM;   /* stay off other's settings! */
3477                                 goto strmoff_unlock_and_return;
3478                         }
3479                         if (zr->jpg_buffers.active == ZORAN_FREE)
3480                                 goto strmoff_unlock_and_return;
3481
3482                         res =
3483                             jpg_qbuf(file, -1,
3484                                      (fh->map_mode ==
3485                                       ZORAN_MAP_MODE_JPG_REC) ?
3486                                      BUZ_MODE_MOTION_COMPRESS :
3487                                      BUZ_MODE_MOTION_DECOMPRESS);
3488                         if (res)
3489                                 goto strmoff_unlock_and_return;
3490                         break;
3491                 default:
3492                         dprintk(1,
3493                                 KERN_ERR
3494                                 "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
3495                                 ZR_DEVNAME(zr), fh->map_mode);
3496                         res = -EINVAL;
3497                         goto strmoff_unlock_and_return;
3498                 }
3499         strmoff_unlock_and_return:
3500                 mutex_unlock(&zr->resource_lock);
3501
3502                 return res;
3503         }
3504                 break;
3505
3506         case VIDIOC_QUERYCTRL:
3507         {
3508                 struct v4l2_queryctrl *ctrl = arg;
3509
3510                 dprintk(3, KERN_DEBUG "%s: VIDIOC_QUERYCTRL - id=%d\n",
3511                         ZR_DEVNAME(zr), ctrl->id);
3512
3513                 /* we only support hue/saturation/contrast/brightness */
3514                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3515                     ctrl->id > V4L2_CID_HUE)
3516                         return -EINVAL;
3517                 else {
3518                         int id = ctrl->id;
3519                         memset(ctrl, 0, sizeof(*ctrl));
3520                         ctrl->id = id;
3521                 }
3522
3523                 switch (ctrl->id) {
3524                 case V4L2_CID_BRIGHTNESS:
3525                         strncpy(ctrl->name, "Brightness", sizeof(ctrl->name)-1);
3526                         break;
3527                 case V4L2_CID_CONTRAST:
3528                         strncpy(ctrl->name, "Contrast", sizeof(ctrl->name)-1);
3529                         break;
3530                 case V4L2_CID_SATURATION:
3531                         strncpy(ctrl->name, "Saturation", sizeof(ctrl->name)-1);
3532                         break;
3533                 case V4L2_CID_HUE:
3534                         strncpy(ctrl->name, "Hue", sizeof(ctrl->name)-1);
3535                         break;
3536                 }
3537
3538                 ctrl->minimum = 0;
3539                 ctrl->maximum = 65535;
3540                 ctrl->step = 1;
3541                 ctrl->default_value = 32768;
3542                 ctrl->type = V4L2_CTRL_TYPE_INTEGER;
3543
3544                 return 0;
3545         }
3546                 break;
3547
3548         case VIDIOC_G_CTRL:
3549         {
3550                 struct v4l2_control *ctrl = arg;
3551
3552                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_CTRL - id=%d\n",
3553                         ZR_DEVNAME(zr), ctrl->id);
3554
3555                 /* we only support hue/saturation/contrast/brightness */
3556                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3557                     ctrl->id > V4L2_CID_HUE)
3558                         return -EINVAL;
3559
3560                 mutex_lock(&zr->resource_lock);
3561                 switch (ctrl->id) {
3562                 case V4L2_CID_BRIGHTNESS:
3563                         ctrl->value = zr->brightness;
3564                         break;
3565                 case V4L2_CID_CONTRAST:
3566                         ctrl->value = zr->contrast;
3567                         break;
3568                 case V4L2_CID_SATURATION:
3569                         ctrl->value = zr->saturation;
3570                         break;
3571                 case V4L2_CID_HUE:
3572                         ctrl->value = zr->hue;
3573                         break;
3574                 }
3575                 mutex_unlock(&zr->resource_lock);
3576
3577                 return 0;
3578         }
3579                 break;
3580
3581         case VIDIOC_S_CTRL:
3582         {
3583                 struct v4l2_control *ctrl = arg;
3584                 struct video_picture pict;
3585
3586                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_CTRL - id=%d\n",
3587                         ZR_DEVNAME(zr), ctrl->id);
3588
3589                 /* we only support hue/saturation/contrast/brightness */
3590                 if (ctrl->id < V4L2_CID_BRIGHTNESS ||
3591                     ctrl->id > V4L2_CID_HUE)
3592                         return -EINVAL;
3593
3594                 if (ctrl->value < 0 || ctrl->value > 65535) {
3595                         dprintk(1,
3596                                 KERN_ERR
3597                                 "%s: VIDIOC_S_CTRL - invalid value %d for id=%d\n",
3598                                 ZR_DEVNAME(zr), ctrl->value, ctrl->id);
3599                         return -EINVAL;
3600                 }
3601
3602                 mutex_lock(&zr->resource_lock);
3603                 switch (ctrl->id) {
3604                 case V4L2_CID_BRIGHTNESS:
3605                         zr->brightness = ctrl->value;
3606                         break;
3607                 case V4L2_CID_CONTRAST:
3608                         zr->contrast = ctrl->value;
3609                         break;
3610                 case V4L2_CID_SATURATION:
3611                         zr->saturation = ctrl->value;
3612                         break;
3613                 case V4L2_CID_HUE:
3614                         zr->hue = ctrl->value;
3615                         break;
3616                 }
3617                 pict.brightness = zr->brightness;
3618                 pict.contrast = zr->contrast;
3619                 pict.colour = zr->saturation;
3620                 pict.hue = zr->hue;
3621
3622                 decoder_command(zr, DECODER_SET_PICTURE, &pict);
3623
3624                 mutex_unlock(&zr->resource_lock);
3625
3626                 return 0;
3627         }
3628                 break;
3629
3630         case VIDIOC_ENUMSTD:
3631         {
3632                 struct v4l2_standard *std = arg;
3633
3634                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMSTD - index=%d\n",
3635                         ZR_DEVNAME(zr), std->index);
3636
3637                 if (std->index < 0 || std->index >= (zr->card.norms + 1))
3638                         return -EINVAL;
3639                 else {
3640                         int id = std->index;
3641                         memset(std, 0, sizeof(*std));
3642                         std->index = id;
3643                 }
3644
3645                 if (std->index == zr->card.norms) {
3646                         /* if we have autodetect, ... */
3647                         struct video_decoder_capability caps;
3648                         decoder_command(zr, DECODER_GET_CAPABILITIES,
3649                                         &caps);
3650                         if (caps.flags & VIDEO_DECODER_AUTO) {
3651                                 std->id = V4L2_STD_ALL;
3652                                 strncpy(std->name, "Autodetect", sizeof(std->name)-1);
3653                                 return 0;
3654                         } else
3655                                 return -EINVAL;
3656                 }
3657                 switch (std->index) {
3658                 case 0:
3659                         std->id = V4L2_STD_PAL;
3660                         strncpy(std->name, "PAL", sizeof(std->name)-1);
3661                         std->frameperiod.numerator = 1;
3662                         std->frameperiod.denominator = 25;
3663                         std->framelines = zr->card.tvn[0]->Ht;
3664                         break;
3665                 case 1:
3666                         std->id = V4L2_STD_NTSC;
3667                         strncpy(std->name, "NTSC", sizeof(std->name)-1);
3668                         std->frameperiod.numerator = 1001;
3669                         std->frameperiod.denominator = 30000;
3670                         std->framelines = zr->card.tvn[1]->Ht;
3671                         break;
3672                 case 2:
3673                         std->id = V4L2_STD_SECAM;
3674                         strncpy(std->name, "SECAM", sizeof(std->name)-1);
3675                         std->frameperiod.numerator = 1;
3676                         std->frameperiod.denominator = 25;
3677                         std->framelines = zr->card.tvn[2]->Ht;
3678                         break;
3679                 }
3680
3681                 return 0;
3682         }
3683                 break;
3684
3685         case VIDIOC_G_STD:
3686         {
3687                 v4l2_std_id *std = arg;
3688                 int norm;
3689
3690                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_STD\n", ZR_DEVNAME(zr));
3691
3692                 mutex_lock(&zr->resource_lock);
3693                 norm = zr->norm;
3694                 mutex_unlock(&zr->resource_lock);
3695
3696                 switch (norm) {
3697                 case VIDEO_MODE_PAL:
3698                         *std = V4L2_STD_PAL;
3699                         break;
3700                 case VIDEO_MODE_NTSC:
3701                         *std = V4L2_STD_NTSC;
3702                         break;
3703                 case VIDEO_MODE_SECAM:
3704                         *std = V4L2_STD_SECAM;
3705                         break;
3706                 }
3707
3708                 return 0;
3709         }
3710                 break;
3711
3712         case VIDIOC_S_STD:
3713         {
3714                 int norm = -1, res = 0;
3715                 v4l2_std_id *std = arg;
3716
3717                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_STD - norm=0x%llx\n",
3718                         ZR_DEVNAME(zr), (unsigned long long)*std);
3719
3720                 if ((*std & V4L2_STD_PAL) && !(*std & ~V4L2_STD_PAL))
3721                         norm = VIDEO_MODE_PAL;
3722                 else if ((*std & V4L2_STD_NTSC) && !(*std & ~V4L2_STD_NTSC))
3723                         norm = VIDEO_MODE_NTSC;
3724                 else if ((*std & V4L2_STD_SECAM) && !(*std & ~V4L2_STD_SECAM))
3725                         norm = VIDEO_MODE_SECAM;
3726                 else if (*std == V4L2_STD_ALL)
3727                         norm = VIDEO_MODE_AUTO;
3728                 else {
3729                         dprintk(1,
3730                                 KERN_ERR
3731                                 "%s: VIDIOC_S_STD - invalid norm 0x%llx\n",
3732                                 ZR_DEVNAME(zr), (unsigned long long)*std);
3733                         return -EINVAL;
3734                 }
3735
3736                 mutex_lock(&zr->resource_lock);
3737                 if ((res = zoran_set_norm(zr, norm)))
3738                         goto sstd_unlock_and_return;
3739
3740                 res = wait_grab_pending(zr);
3741         sstd_unlock_and_return:
3742                 mutex_unlock(&zr->resource_lock);
3743                 return res;
3744         }
3745                 break;
3746
3747         case VIDIOC_ENUMINPUT:
3748         {
3749                 struct v4l2_input *inp = arg;
3750                 int status;
3751
3752                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMINPUT - index=%d\n",
3753                         ZR_DEVNAME(zr), inp->index);
3754
3755                 if (inp->index < 0 || inp->index >= zr->card.inputs)
3756                         return -EINVAL;
3757                 else {
3758                         int id = inp->index;
3759                         memset(inp, 0, sizeof(*inp));
3760                         inp->index = id;
3761                 }
3762
3763                 strncpy(inp->name, zr->card.input[inp->index].name,
3764                         sizeof(inp->name) - 1);
3765                 inp->type = V4L2_INPUT_TYPE_CAMERA;
3766                 inp->std = V4L2_STD_ALL;
3767
3768                 /* Get status of video decoder */
3769                 mutex_lock(&zr->resource_lock);
3770                 decoder_command(zr, DECODER_GET_STATUS, &status);
3771                 mutex_unlock(&zr->resource_lock);
3772
3773                 if (!(status & DECODER_STATUS_GOOD)) {
3774                         inp->status |= V4L2_IN_ST_NO_POWER;
3775                         inp->status |= V4L2_IN_ST_NO_SIGNAL;
3776                 }
3777                 if (!(status & DECODER_STATUS_COLOR))
3778                         inp->status |= V4L2_IN_ST_NO_COLOR;
3779
3780                 return 0;
3781         }
3782                 break;
3783
3784         case VIDIOC_G_INPUT:
3785         {
3786                 int *input = arg;
3787
3788                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_INPUT\n", ZR_DEVNAME(zr));
3789
3790                 mutex_lock(&zr->resource_lock);
3791                 *input = zr->input;
3792                 mutex_unlock(&zr->resource_lock);
3793
3794                 return 0;
3795         }
3796                 break;
3797
3798         case VIDIOC_S_INPUT:
3799         {
3800                 int *input = arg, res = 0;
3801
3802                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_INPUT - input=%d\n",
3803                         ZR_DEVNAME(zr), *input);
3804
3805                 mutex_lock(&zr->resource_lock);
3806                 if ((res = zoran_set_input(zr, *input)))
3807                         goto sinput_unlock_and_return;
3808
3809                 /* Make sure the changes come into effect */
3810                 res = wait_grab_pending(zr);
3811         sinput_unlock_and_return:
3812                 mutex_unlock(&zr->resource_lock);
3813                 return res;
3814         }
3815                 break;
3816
3817         case VIDIOC_ENUMOUTPUT:
3818         {
3819                 struct v4l2_output *outp = arg;
3820
3821                 dprintk(3, KERN_DEBUG "%s: VIDIOC_ENUMOUTPUT - index=%d\n",
3822                         ZR_DEVNAME(zr), outp->index);
3823
3824                 if (outp->index != 0)
3825                         return -EINVAL;
3826
3827                 memset(outp, 0, sizeof(*outp));
3828                 outp->index = 0;
3829                 outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
3830                 strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
3831
3832                 return 0;
3833         }
3834                 break;
3835
3836         case VIDIOC_G_OUTPUT:
3837         {
3838                 int *output = arg;
3839
3840                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_OUTPUT\n", ZR_DEVNAME(zr));
3841
3842                 *output = 0;
3843
3844                 return 0;
3845         }
3846                 break;
3847
3848         case VIDIOC_S_OUTPUT:
3849         {
3850                 int *output = arg;
3851
3852                 dprintk(3, KERN_DEBUG "%s: VIDIOC_S_OUTPUT - output=%d\n",
3853                         ZR_DEVNAME(zr), *output);
3854
3855                 if (*output != 0)
3856                         return -EINVAL;
3857
3858                 return 0;
3859         }
3860                 break;
3861
3862                 /* cropping (sub-frame capture) */
3863         case VIDIOC_CROPCAP:
3864         {
3865                 struct v4l2_cropcap *cropcap = arg;
3866                 int type = cropcap->type, res = 0;
3867
3868                 dprintk(3, KERN_ERR "%s: VIDIOC_CROPCAP - type=%d\n",
3869                         ZR_DEVNAME(zr), cropcap->type);
3870
3871                 memset(cropcap, 0, sizeof(*cropcap));
3872                 cropcap->type = type;
3873
3874                 mutex_lock(&zr->resource_lock);
3875
3876                 if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3877                     (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3878                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3879                         dprintk(1,
3880                                 KERN_ERR
3881                                 "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
3882                                 ZR_DEVNAME(zr));
3883                         res = -EINVAL;
3884                         goto cropcap_unlock_and_return;
3885                 }
3886
3887                 cropcap->bounds.top = cropcap->bounds.left = 0;
3888                 cropcap->bounds.width = BUZ_MAX_WIDTH;
3889                 cropcap->bounds.height = BUZ_MAX_HEIGHT;
3890                 cropcap->defrect.top = cropcap->defrect.left = 0;
3891                 cropcap->defrect.width = BUZ_MIN_WIDTH;
3892                 cropcap->defrect.height = BUZ_MIN_HEIGHT;
3893         cropcap_unlock_and_return:
3894                 mutex_unlock(&zr->resource_lock);
3895                 return res;
3896         }
3897                 break;
3898
3899         case VIDIOC_G_CROP:
3900         {
3901                 struct v4l2_crop *crop = arg;
3902                 int type = crop->type, res = 0;
3903
3904                 dprintk(3, KERN_ERR "%s: VIDIOC_G_CROP - type=%d\n",
3905                         ZR_DEVNAME(zr), crop->type);
3906
3907                 memset(crop, 0, sizeof(*crop));
3908                 crop->type = type;
3909
3910                 mutex_lock(&zr->resource_lock);
3911
3912                 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3913                     (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3914                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3915                         dprintk(1,
3916                                 KERN_ERR
3917                                 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3918                                 ZR_DEVNAME(zr));
3919                         res = -EINVAL;
3920                         goto gcrop_unlock_and_return;
3921                 }
3922
3923                 crop->c.top = fh->jpg_settings.img_y;
3924                 crop->c.left = fh->jpg_settings.img_x;
3925                 crop->c.width = fh->jpg_settings.img_width;
3926                 crop->c.height = fh->jpg_settings.img_height;
3927
3928         gcrop_unlock_and_return:
3929                 mutex_unlock(&zr->resource_lock);
3930
3931                 return res;
3932         }
3933                 break;
3934
3935         case VIDIOC_S_CROP:
3936         {
3937                 struct v4l2_crop *crop = arg;
3938                 int res = 0;
3939
3940                 settings = fh->jpg_settings;
3941
3942                 dprintk(3,
3943                         KERN_ERR
3944                         "%s: VIDIOC_S_CROP - type=%d, x=%d,y=%d,w=%d,h=%d\n",
3945                         ZR_DEVNAME(zr), crop->type, crop->c.left, crop->c.top,
3946                         crop->c.width, crop->c.height);
3947
3948                 mutex_lock(&zr->resource_lock);
3949
3950                 if (fh->jpg_buffers.allocated || fh->v4l_buffers.allocated) {
3951                         dprintk(1,
3952                                 KERN_ERR
3953                                 "%s: VIDIOC_S_CROP - cannot change settings while active\n",
3954                                 ZR_DEVNAME(zr));
3955                         res = -EBUSY;
3956                         goto scrop_unlock_and_return;
3957                 }
3958
3959                 if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
3960                     (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
3961                      fh->map_mode == ZORAN_MAP_MODE_RAW)) {
3962                         dprintk(1,
3963                                 KERN_ERR
3964                                 "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
3965                                 ZR_DEVNAME(zr));
3966                         res = -EINVAL;
3967                         goto scrop_unlock_and_return;
3968                 }
3969
3970                 /* move into a form that we understand */
3971                 settings.img_x = crop->c.left;
3972                 settings.img_y = crop->c.top;
3973                 settings.img_width = crop->c.width;
3974                 settings.img_height = crop->c.height;
3975
3976                 /* check validity */
3977                 if ((res = zoran_check_jpg_settings(zr, &settings)))
3978                         goto scrop_unlock_and_return;
3979
3980                 /* accept */
3981                 fh->jpg_settings = settings;
3982
3983         scrop_unlock_and_return:
3984                 mutex_unlock(&zr->resource_lock);
3985                 return res;
3986         }
3987                 break;
3988
3989         case VIDIOC_G_JPEGCOMP:
3990         {
3991                 struct v4l2_jpegcompression *params = arg;
3992
3993                 dprintk(3, KERN_DEBUG "%s: VIDIOC_G_JPEGCOMP\n",
3994                         ZR_DEVNAME(zr));
3995
3996                 memset(params, 0, sizeof(*params));
3997
3998                 mutex_lock(&zr->resource_lock);
3999
4000                 params->quality = fh->jpg_settings.jpg_comp.quality;
4001                 params->APPn = fh->jpg_settings.jpg_comp.APPn;
4002                 memcpy(params->APP_data,
4003                        fh->jpg_settings.jpg_comp.APP_data,
4004                        fh->jpg_settings.jpg_comp.APP_len);
4005                 params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
4006                 memcpy(params->COM_data,
4007                        fh->jpg_settings.jpg_comp.COM_data,
4008                        fh->jpg_settings.jpg_comp.COM_len);
4009                 params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
4010                 params->jpeg_markers =
4011                     fh->jpg_settings.jpg_comp.jpeg_markers;
4012
4013                 mutex_unlock(&zr->resource_lock);
4014
4015                 return 0;
4016         }
4017                 break;
4018
4019         case VIDIOC_S_JPEGCOMP:
4020         {
4021                 struct v4l2_jpegcompression *params = arg;
4022                 int res = 0;
4023
4024                 settings = fh->jpg_settings;
4025
4026                 dprintk(3,
4027                         KERN_DEBUG
4028                         "%s: VIDIOC_S_JPEGCOMP - quality=%d, APPN=%d, APP_len=%d, COM_len=%d\n",
4029                         ZR_DEVNAME(zr), params->quality, params->APPn,
4030                         params->APP_len, params->COM_len);
4031
4032                 settings.jpg_comp = *params;
4033
4034                 mutex_lock(&zr->resource_lock);
4035
4036                 if (fh->v4l_buffers.active != ZORAN_FREE ||
4037                     fh->jpg_buffers.active != ZORAN_FREE) {
4038                         dprintk(1,
4039                                 KERN_WARNING
4040                                 "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
4041                                 ZR_DEVNAME(zr));
4042                         res = -EBUSY;
4043                         goto sjpegc_unlock_and_return;
4044                 }
4045
4046                 if ((res = zoran_check_jpg_settings(zr, &settings)))
4047                         goto sjpegc_unlock_and_return;
4048                 if (!fh->jpg_buffers.allocated)
4049                         fh->jpg_buffers.buffer_size =
4050                             zoran_v4l2_calc_bufsize(&fh->jpg_settings);
4051                 fh->jpg_settings.jpg_comp = *params = settings.jpg_comp;
4052         sjpegc_unlock_and_return:
4053                 mutex_unlock(&zr->resource_lock);
4054
4055                 return 0;
4056         }
4057                 break;
4058
4059         case VIDIOC_QUERYSTD:   /* why is this useful? */
4060         {
4061                 v4l2_std_id *std = arg;
4062
4063                 dprintk(3,
4064                         KERN_DEBUG "%s: VIDIOC_QUERY_STD - std=0x%llx\n",
4065                         ZR_DEVNAME(zr), (unsigned long long)*std);
4066
4067                 if (*std == V4L2_STD_ALL || *std == V4L2_STD_NTSC ||
4068                     *std == V4L2_STD_PAL || (*std == V4L2_STD_SECAM &&
4069                                              zr->card.norms == 3)) {
4070                         return 0;
4071                 }
4072
4073                 return -EINVAL;
4074         }
4075                 break;
4076
4077         case VIDIOC_TRY_FMT:
4078         {
4079                 struct v4l2_format *fmt = arg;
4080                 int res = 0;
4081
4082                 dprintk(3, KERN_DEBUG "%s: VIDIOC_TRY_FMT - type=%d\n",
4083                         ZR_DEVNAME(zr), fmt->type);
4084
4085                 switch (fmt->type) {
4086                 case V4L2_BUF_TYPE_VIDEO_OVERLAY:
4087                         mutex_lock(&zr->resource_lock);
4088
4089                         if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
4090                                 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
4091                         if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
4092                                 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
4093                         if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
4094                                 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
4095                         if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
4096                                 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
4097
4098                         mutex_unlock(&zr->resource_lock);
4099                         break;
4100
4101                 case V4L2_BUF_TYPE_VIDEO_CAPTURE:
4102                 case V4L2_BUF_TYPE_VIDEO_OUTPUT:
4103                         if (fmt->fmt.pix.bytesperline > 0)
4104                                 return -EINVAL;
4105
4106                         mutex_lock(&zr->resource_lock);
4107
4108                         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG) {
4109                                 settings = fh->jpg_settings;
4110
4111                                 /* we actually need to set 'real' parameters now */
4112                                 if ((fmt->fmt.pix.height * 2) >
4113                                     BUZ_MAX_HEIGHT)
4114                                         settings.TmpDcm = 1;
4115                                 else
4116                                         settings.TmpDcm = 2;
4117                                 settings.decimation = 0;
4118                                 if (fmt->fmt.pix.height <=
4119                                     fh->jpg_settings.img_height / 2)
4120                                         settings.VerDcm = 2;
4121                                 else
4122                                         settings.VerDcm = 1;
4123                                 if (fmt->fmt.pix.width <=
4124                                     fh->jpg_settings.img_width / 4)
4125                                         settings.HorDcm = 4;
4126                                 else if (fmt->fmt.pix.width <=
4127                                          fh->jpg_settings.img_width / 2)
4128                                         settings.HorDcm = 2;
4129                                 else
4130                                         settings.HorDcm = 1;
4131                                 if (settings.TmpDcm == 1)
4132                                         settings.field_per_buff = 2;
4133                                 else
4134                                         settings.field_per_buff = 1;
4135
4136                                 /* check */
4137                                 if ((res =
4138                                      zoran_check_jpg_settings(zr,
4139                                                               &settings)))
4140                                         goto tryfmt_unlock_and_return;
4141
4142                                 /* tell the user what we actually did */
4143                                 fmt->fmt.pix.width =
4144                                     settings.img_width / settings.HorDcm;
4145                                 fmt->fmt.pix.height =
4146                                     settings.img_height * 2 /
4147                                     (settings.TmpDcm * settings.VerDcm);
4148                                 if (settings.TmpDcm == 1)
4149                                         fmt->fmt.pix.field =
4150                                             (fh->jpg_settings.
4151                                              odd_even ? V4L2_FIELD_SEQ_TB :
4152                                              V4L2_FIELD_SEQ_BT);
4153                                 else
4154                                         fmt->fmt.pix.field =
4155                                             (fh->jpg_settings.
4156                                              odd_even ? V4L2_FIELD_TOP :
4157                                              V4L2_FIELD_BOTTOM);
4158
4159                                 fmt->fmt.pix.sizeimage =
4160                                     zoran_v4l2_calc_bufsize(&settings);
4161                         } else if (fmt->type ==
4162                                    V4L2_BUF_TYPE_VIDEO_CAPTURE) {
4163                                 int i;
4164
4165                                 for (i = 0; i < NUM_FORMATS; i++)
4166                                         if (zoran_formats[i].fourcc ==
4167                                             fmt->fmt.pix.pixelformat)
4168                                                 break;
4169                                 if (i == NUM_FORMATS) {
4170                                         res = -EINVAL;
4171                                         goto tryfmt_unlock_and_return;
4172                                 }
4173
4174                                 if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
4175                                         fmt->fmt.pix.width = BUZ_MAX_WIDTH;
4176                                 if (fmt->fmt.pix.width < BUZ_MIN_WIDTH)
4177                                         fmt->fmt.pix.width = BUZ_MIN_WIDTH;
4178                                 if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
4179                                         fmt->fmt.pix.height =
4180                                             BUZ_MAX_HEIGHT;
4181                                 if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT)
4182                                         fmt->fmt.pix.height =
4183                                             BUZ_MIN_HEIGHT;
4184                         } else {
4185                                 res = -EINVAL;
4186                                 goto tryfmt_unlock_and_return;
4187                         }
4188                 tryfmt_unlock_and_return:
4189                         mutex_unlock(&zr->resource_lock);
4190
4191                         return res;
4192                         break;
4193
4194                 default:
4195                         return -EINVAL;
4196                 }
4197
4198                 return 0;
4199         }
4200                 break;
4201 #endif
4202
4203         default:
4204                 dprintk(1, KERN_DEBUG "%s: UNKNOWN ioctl cmd: 0x%x\n",
4205                         ZR_DEVNAME(zr), cmd);
4206                 return -ENOIOCTLCMD;
4207                 break;
4208
4209         }
4210         return 0;
4211 }
4212
4213
4214 static int
4215 zoran_ioctl (struct inode *inode,
4216              struct file  *file,
4217              unsigned int  cmd,
4218              unsigned long arg)
4219 {
4220         return video_usercopy(inode, file, cmd, arg, zoran_do_ioctl);
4221 }
4222
4223 static unsigned int
4224 zoran_poll (struct file *file,
4225             poll_table  *wait)
4226 {
4227         struct zoran_fh *fh = file->private_data;
4228         struct zoran *zr = fh->zr;
4229         int res = 0, frame;
4230         unsigned long flags;
4231
4232         /* we should check whether buffers are ready to be synced on
4233          * (w/o waits - O_NONBLOCK) here
4234          * if ready for read (sync), return POLLIN|POLLRDNORM,
4235          * if ready for write (sync), return POLLOUT|POLLWRNORM,
4236          * if error, return POLLERR,
4237          * if no buffers queued or so, return POLLNVAL
4238          */
4239
4240         mutex_lock(&zr->resource_lock);
4241
4242         switch (fh->map_mode) {
4243         case ZORAN_MAP_MODE_RAW:
4244                 poll_wait(file, &zr->v4l_capq, wait);
4245                 frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
4246
4247                 spin_lock_irqsave(&zr->spinlock, flags);
4248                 dprintk(3,
4249                         KERN_DEBUG
4250                         "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
4251                         ZR_DEVNAME(zr), __FUNCTION__,
4252                         "FAL"[fh->v4l_buffers.active], zr->v4l_sync_tail,
4253                         "UPMD"[zr->v4l_buffers.buffer[frame].state],
4254                         zr->v4l_pend_tail, zr->v4l_pend_head);
4255                 /* Process is the one capturing? */
4256                 if (fh->v4l_buffers.active != ZORAN_FREE &&
4257                     /* Buffer ready to DQBUF? */
4258                     zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
4259                         res = POLLIN | POLLRDNORM;
4260                 spin_unlock_irqrestore(&zr->spinlock, flags);
4261
4262                 break;
4263
4264         case ZORAN_MAP_MODE_JPG_REC:
4265         case ZORAN_MAP_MODE_JPG_PLAY:
4266                 poll_wait(file, &zr->jpg_capq, wait);
4267                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
4268
4269                 spin_lock_irqsave(&zr->spinlock, flags);
4270                 dprintk(3,
4271                         KERN_DEBUG
4272                         "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
4273                         ZR_DEVNAME(zr), __FUNCTION__,
4274                         "FAL"[fh->jpg_buffers.active], zr->jpg_que_tail,
4275                         "UPMD"[zr->jpg_buffers.buffer[frame].state],
4276                         zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
4277                 if (fh->jpg_buffers.active != ZORAN_FREE &&
4278                     zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
4279                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
4280                                 res = POLLIN | POLLRDNORM;
4281                         else
4282                                 res = POLLOUT | POLLWRNORM;
4283                 }
4284                 spin_unlock_irqrestore(&zr->spinlock, flags);
4285
4286                 break;
4287
4288         default:
4289                 dprintk(1,
4290                         KERN_ERR
4291                         "%s: zoran_poll() - internal error, unknown map_mode=%d\n",
4292                         ZR_DEVNAME(zr), fh->map_mode);
4293                 res = POLLNVAL;
4294         }
4295
4296         mutex_unlock(&zr->resource_lock);
4297
4298         return res;
4299 }
4300
4301
4302 /*
4303  * This maps the buffers to user space.
4304  *
4305  * Depending on the state of fh->map_mode
4306  * the V4L or the MJPEG buffers are mapped
4307  * per buffer or all together
4308  *
4309  * Note that we need to connect to some
4310  * unmap signal event to unmap the de-allocate
4311  * the buffer accordingly (zoran_vm_close())
4312  */
4313
4314 static void
4315 zoran_vm_open (struct vm_area_struct *vma)
4316 {
4317         struct zoran_mapping *map = vma->vm_private_data;
4318
4319         map->count++;
4320 }
4321
4322 static void
4323 zoran_vm_close (struct vm_area_struct *vma)
4324 {
4325         struct zoran_mapping *map = vma->vm_private_data;
4326         struct file *file = map->file;
4327         struct zoran_fh *fh = file->private_data;
4328         struct zoran *zr = fh->zr;
4329         int i;
4330
4331         map->count--;
4332         if (map->count == 0) {
4333                 switch (fh->map_mode) {
4334                 case ZORAN_MAP_MODE_JPG_REC:
4335                 case ZORAN_MAP_MODE_JPG_PLAY:
4336
4337                         dprintk(3, KERN_INFO "%s: munmap(MJPEG)\n",
4338                                 ZR_DEVNAME(zr));
4339
4340                         for (i = 0; i < fh->jpg_buffers.num_buffers; i++) {
4341                                 if (fh->jpg_buffers.buffer[i].map == map) {
4342                                         fh->jpg_buffers.buffer[i].map =
4343                                             NULL;
4344                                 }
4345                         }
4346                         kfree(map);
4347
4348                         for (i = 0; i < fh->jpg_buffers.num_buffers; i++)
4349                                 if (fh->jpg_buffers.buffer[i].map)
4350                                         break;
4351                         if (i == fh->jpg_buffers.num_buffers) {
4352                                 mutex_lock(&zr->resource_lock);
4353
4354                                 if (fh->jpg_buffers.active != ZORAN_FREE) {
4355                                         jpg_qbuf(file, -1, zr->codec_mode);
4356                                         zr->jpg_buffers.allocated = 0;
4357                                         zr->jpg_buffers.active =
4358                                             fh->jpg_buffers.active =
4359                                             ZORAN_FREE;
4360                                 }
4361                                 //jpg_fbuffer_free(file);
4362                                 fh->jpg_buffers.allocated = 0;
4363                                 fh->jpg_buffers.ready_to_be_freed = 1;
4364
4365                                 mutex_unlock(&zr->resource_lock);
4366                         }
4367
4368                         break;
4369
4370                 case ZORAN_MAP_MODE_RAW:
4371
4372                         dprintk(3, KERN_INFO "%s: munmap(V4L)\n",
4373                                 ZR_DEVNAME(zr));
4374
4375                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++) {
4376                                 if (fh->v4l_buffers.buffer[i].map == map) {
4377                                         /* unqueue/unmap */
4378                                         fh->v4l_buffers.buffer[i].map =
4379                                             NULL;
4380                                 }
4381                         }
4382                         kfree(map);
4383
4384                         for (i = 0; i < fh->v4l_buffers.num_buffers; i++)
4385                                 if (fh->v4l_buffers.buffer[i].map)
4386                                         break;
4387                         if (i == fh->v4l_buffers.num_buffers) {
4388                                 mutex_lock(&zr->resource_lock);
4389
4390                                 if (fh->v4l_buffers.active != ZORAN_FREE) {
4391                                         long flags;
4392
4393                                         spin_lock_irqsave(&zr->spinlock, flags);
4394                                         zr36057_set_memgrab(zr, 0);
4395                                         zr->v4l_buffers.allocated = 0;
4396                                         zr->v4l_buffers.active =
4397                                             fh->v4l_buffers.active =
4398                                             ZORAN_FREE;
4399                                         spin_unlock_irqrestore(&zr->spinlock, flags);
4400                                 }
4401                                 //v4l_fbuffer_free(file);
4402                                 fh->v4l_buffers.allocated = 0;
4403                                 fh->v4l_buffers.ready_to_be_freed = 1;
4404
4405                                 mutex_unlock(&zr->resource_lock);
4406                         }
4407
4408                         break;
4409
4410                 default:
4411                         printk(KERN_ERR
4412                                "%s: munmap() - internal error - unknown map mode %d\n",
4413                                ZR_DEVNAME(zr), fh->map_mode);
4414                         break;
4415
4416                 }
4417         }
4418 }
4419
4420 static struct vm_operations_struct zoran_vm_ops = {
4421         .open = zoran_vm_open,
4422         .close = zoran_vm_close,
4423 };
4424
4425 static int
4426 zoran_mmap (struct file           *file,
4427             struct vm_area_struct *vma)
4428 {
4429         struct zoran_fh *fh = file->private_data;
4430         struct zoran *zr = fh->zr;
4431         unsigned long size = (vma->vm_end - vma->vm_start);
4432         unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
4433         int i, j;
4434         unsigned long page, start = vma->vm_start, todo, pos, fraglen;
4435         int first, last;
4436         struct zoran_mapping *map;
4437         int res = 0;
4438
4439         dprintk(3,
4440                 KERN_INFO "%s: mmap(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
4441                 ZR_DEVNAME(zr),
4442                 fh->map_mode == ZORAN_MAP_MODE_RAW ? "V4L" : "MJPEG",
4443                 vma->vm_start, vma->vm_end, size);
4444
4445         if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
4446             !(vma->vm_flags & VM_WRITE)) {
4447                 dprintk(1,
4448                         KERN_ERR
4449                         "%s: mmap() - no MAP_SHARED/PROT_{READ,WRITE} given\n",
4450                         ZR_DEVNAME(zr));
4451                 return -EINVAL;
4452         }
4453
4454         switch (fh->map_mode) {
4455
4456         case ZORAN_MAP_MODE_JPG_REC:
4457         case ZORAN_MAP_MODE_JPG_PLAY:
4458
4459                 /* lock */
4460                 mutex_lock(&zr->resource_lock);
4461
4462                 /* Map the MJPEG buffers */
4463                 if (!fh->jpg_buffers.allocated) {
4464                         dprintk(1,
4465                                 KERN_ERR
4466                                 "%s: zoran_mmap(MJPEG) - buffers not yet allocated\n",
4467                                 ZR_DEVNAME(zr));
4468                         res = -ENOMEM;
4469                         goto jpg_mmap_unlock_and_return;
4470                 }
4471
4472                 first = offset / fh->jpg_buffers.buffer_size;
4473                 last = first - 1 + size / fh->jpg_buffers.buffer_size;
4474                 if (offset % fh->jpg_buffers.buffer_size != 0 ||
4475                     size % fh->jpg_buffers.buffer_size != 0 || first < 0 ||
4476                     last < 0 || first >= fh->jpg_buffers.num_buffers ||
4477                     last >= fh->jpg_buffers.num_buffers) {
4478                         dprintk(1,
4479                                 KERN_ERR
4480                                 "%s: mmap(MJPEG) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4481                                 ZR_DEVNAME(zr), offset, size,
4482                                 fh->jpg_buffers.buffer_size,
4483                                 fh->jpg_buffers.num_buffers);
4484                         res = -EINVAL;
4485                         goto jpg_mmap_unlock_and_return;
4486                 }
4487                 for (i = first; i <= last; i++) {
4488                         if (fh->jpg_buffers.buffer[i].map) {
4489                                 dprintk(1,
4490                                         KERN_ERR
4491                                         "%s: mmap(MJPEG) - buffer %d already mapped\n",
4492                                         ZR_DEVNAME(zr), i);
4493                                 res = -EBUSY;
4494                                 goto jpg_mmap_unlock_and_return;
4495                         }
4496                 }
4497
4498                 /* map these buffers (v4l_buffers[i]) */
4499                 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4500                 if (!map) {
4501                         res = -ENOMEM;
4502                         goto jpg_mmap_unlock_and_return;
4503                 }
4504                 map->file = file;
4505                 map->count = 1;
4506
4507                 vma->vm_ops = &zoran_vm_ops;
4508                 vma->vm_flags |= VM_DONTEXPAND;
4509                 vma->vm_private_data = map;
4510
4511                 for (i = first; i <= last; i++) {
4512                         for (j = 0;
4513                              j < fh->jpg_buffers.buffer_size / PAGE_SIZE;
4514                              j++) {
4515                                 fraglen =
4516                                     (le32_to_cpu(fh->jpg_buffers.buffer[i].
4517                                      frag_tab[2 * j + 1]) & ~1) << 1;
4518                                 todo = size;
4519                                 if (todo > fraglen)
4520                                         todo = fraglen;
4521                                 pos =
4522                                     le32_to_cpu((unsigned long) fh->jpg_buffers.
4523                                     buffer[i].frag_tab[2 * j]);
4524                                 /* should just be pos on i386 */
4525                                 page = virt_to_phys(bus_to_virt(pos))
4526                                                                 >> PAGE_SHIFT;
4527                                 if (remap_pfn_range(vma, start, page,
4528                                                         todo, PAGE_SHARED)) {
4529                                         dprintk(1,
4530                                                 KERN_ERR
4531                                                 "%s: zoran_mmap(V4L) - remap_pfn_range failed\n",
4532                                                 ZR_DEVNAME(zr));
4533                                         res = -EAGAIN;
4534                                         goto jpg_mmap_unlock_and_return;
4535                                 }
4536                                 size -= todo;
4537                                 start += todo;
4538                                 if (size == 0)
4539                                         break;
4540                                 if (le32_to_cpu(fh->jpg_buffers.buffer[i].
4541                                     frag_tab[2 * j + 1]) & 1)
4542                                         break;  /* was last fragment */
4543                         }
4544                         fh->jpg_buffers.buffer[i].map = map;
4545                         if (size == 0)
4546                                 break;
4547
4548                 }
4549         jpg_mmap_unlock_and_return:
4550                 mutex_unlock(&zr->resource_lock);
4551
4552                 break;
4553
4554         case ZORAN_MAP_MODE_RAW:
4555
4556                 mutex_lock(&zr->resource_lock);
4557
4558                 /* Map the V4L buffers */
4559                 if (!fh->v4l_buffers.allocated) {
4560                         dprintk(1,
4561                                 KERN_ERR
4562                                 "%s: zoran_mmap(V4L) - buffers not yet allocated\n",
4563                                 ZR_DEVNAME(zr));
4564                         res = -ENOMEM;
4565                         goto v4l_mmap_unlock_and_return;
4566                 }
4567
4568                 first = offset / fh->v4l_buffers.buffer_size;
4569                 last = first - 1 + size / fh->v4l_buffers.buffer_size;
4570                 if (offset % fh->v4l_buffers.buffer_size != 0 ||
4571                     size % fh->v4l_buffers.buffer_size != 0 || first < 0 ||
4572                     last < 0 || first >= fh->v4l_buffers.num_buffers ||
4573                     last >= fh->v4l_buffers.buffer_size) {
4574                         dprintk(1,
4575                                 KERN_ERR
4576                                 "%s: mmap(V4L) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
4577                                 ZR_DEVNAME(zr), offset, size,
4578                                 fh->v4l_buffers.buffer_size,
4579                                 fh->v4l_buffers.num_buffers);
4580                         res = -EINVAL;
4581                         goto v4l_mmap_unlock_and_return;
4582                 }
4583                 for (i = first; i <= last; i++) {
4584                         if (fh->v4l_buffers.buffer[i].map) {
4585                                 dprintk(1,
4586                                         KERN_ERR
4587                                         "%s: mmap(V4L) - buffer %d already mapped\n",
4588                                         ZR_DEVNAME(zr), i);
4589                                 res = -EBUSY;
4590                                 goto v4l_mmap_unlock_and_return;
4591                         }
4592                 }
4593
4594                 /* map these buffers (v4l_buffers[i]) */
4595                 map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
4596                 if (!map) {
4597                         res = -ENOMEM;
4598                         goto v4l_mmap_unlock_and_return;
4599                 }
4600                 map->file = file;
4601                 map->count = 1;
4602
4603                 vma->vm_ops = &zoran_vm_ops;
4604                 vma->vm_flags |= VM_DONTEXPAND;
4605                 vma->vm_private_data = map;
4606
4607                 for (i = first; i <= last; i++) {
4608                         todo = size;
4609                         if (todo > fh->v4l_buffers.buffer_size)
4610                                 todo = fh->v4l_buffers.buffer_size;
4611                         page = fh->v4l_buffers.buffer[i].fbuffer_phys;
4612                         if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
4613                                                         todo, PAGE_SHARED)) {
4614                                 dprintk(1,
4615                                         KERN_ERR
4616                                         "%s: zoran_mmap(V4L)i - remap_pfn_range failed\n",
4617                                         ZR_DEVNAME(zr));
4618                                 res = -EAGAIN;
4619                                 goto v4l_mmap_unlock_and_return;
4620                         }
4621                         size -= todo;
4622                         start += todo;
4623                         fh->v4l_buffers.buffer[i].map = map;
4624                         if (size == 0)
4625                                 break;
4626                 }
4627         v4l_mmap_unlock_and_return:
4628                 mutex_unlock(&zr->resource_lock);
4629
4630                 break;
4631
4632         default:
4633                 dprintk(1,
4634                         KERN_ERR
4635                         "%s: zoran_mmap() - internal error - unknown map mode %d\n",
4636                         ZR_DEVNAME(zr), fh->map_mode);
4637                 break;
4638         }
4639
4640         return 0;
4641 }
4642
4643 static const struct file_operations zoran_fops = {
4644         .owner = THIS_MODULE,
4645         .open = zoran_open,
4646         .release = zoran_close,
4647         .ioctl = zoran_ioctl,
4648         .compat_ioctl   = v4l_compat_ioctl32,
4649         .llseek = no_llseek,
4650         .read = zoran_read,
4651         .write = zoran_write,
4652         .mmap = zoran_mmap,
4653         .poll = zoran_poll,
4654 };
4655
4656 struct video_device zoran_template __devinitdata = {
4657         .name = ZORAN_NAME,
4658         .type = ZORAN_VID_TYPE,
4659 #ifdef CONFIG_VIDEO_V4L2
4660         .type2 = ZORAN_V4L2_VID_FLAGS,
4661 #endif
4662         .hardware = ZORAN_HARDWARE,
4663         .fops = &zoran_fops,
4664         .release = &zoran_vdev_release,
4665         .minor = -1
4666 };
4667