SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/media/video/zoran/zoran_driver.c

   1 /*
   2  * Zoran zr36057/zr36067 PCI controller driver, for the
   3  * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux
   4  * Media Labs LML33/LML33R10.
   5  *
   6  * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
   7  *
   8  * Changes for BUZ by Wolfgang Scherr <scherr@net4you.net>
   9  *
  10  * Changes for DC10/DC30 by Laurent Pinchart <laurent.pinchart@skynet.be>
  11  *
  12  * Changes for LML33R10 by Maxim Yevtyushkin <max@linuxmedialabs.com>
  13  *
  14  * Changes for videodev2/v4l2 by Ronald Bultje <rbultje@ronald.bitfreak.net>
  15  *
  16  * Based on
  17  *
  18  * Miro DC10 driver
  19  * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
  20  *
  21  * Iomega Buz driver version 1.0
  22  * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de>
  23  *
  24  * buz.0.0.3
  25  * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
  26  *
  27  * bttv - Bt848 frame grabber driver
  28  * Copyright (C) 1996,97,98 Ralph  Metzler (rjkm@thp.uni-koeln.de)
  29  *                        & Marcus Metzler (mocm@thp.uni-koeln.de)
  30  *
  31  *
  32  * This program is free software; you can redistribute it and/or modify
  33  * it under the terms of the GNU General Public License as published by
  34  * the Free Software Foundation; either version 2 of the License, or
  35  * (at your option) any later version.
  36  *
  37  * This program is distributed in the hope that it will be useful,
  38  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  39  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  40  * GNU General Public License for more details.
  41  *
  42  * You should have received a copy of the GNU General Public License
  43  * along with this program; if not, write to the Free Software
  44  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  45  */
  46
  47 #include <linux/version.h>
  48 #include <linux/init.h>
  49 #include <linux/module.h>
  50 #include <linux/delay.h>
  51 #include <linux/slab.h>
  52 #include <linux/pci.h>
  53 #include <linux/vmalloc.h>
  54 #include <linux/wait.h>
  55
  56 #include <linux/interrupt.h>
  57 #include <linux/i2c.h>
  58 #include <linux/i2c-algo-bit.h>
  59
  60 #include <linux/spinlock.h>
  61
  62 #include <linux/videodev.h>
  63 #include <media/v4l2-common.h>
  64 #include <media/v4l2-ioctl.h>
  65 #include "videocodec.h"
  66
  67 #include <asm/byteorder.h>
  68 #include <asm/io.h>
  69 #include <asm/uaccess.h>
  70 #include <linux/proc_fs.h>
  71
  72 #include <linux/mutex.h>
  73 #include "zoran.h"
  74 #include "zoran_device.h"
  75 #include "zoran_card.h"
  76
  77
  78 const struct zoran_format zoran_formats[] = {
  79         {
  80                 .name = "15-bit RGB LE",
  81                 .fourcc = V4L2_PIX_FMT_RGB555,
  82                 .colorspace = V4L2_COLORSPACE_SRGB,
  83                 .depth = 15,
  84                 .flags = ZORAN_FORMAT_CAPTURE |
  85                          ZORAN_FORMAT_OVERLAY,
  86                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif|
  87                            ZR36057_VFESPFR_LittleEndian,
  88         }, {
  89                 .name = "15-bit RGB BE",
  90                 .fourcc = V4L2_PIX_FMT_RGB555X,
  91                 .colorspace = V4L2_COLORSPACE_SRGB,
  92                 .depth = 15,
  93                 .flags = ZORAN_FORMAT_CAPTURE |
  94                          ZORAN_FORMAT_OVERLAY,
  95                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif,
  96         }, {
  97                 .name = "16-bit RGB LE",
  98                 .fourcc = V4L2_PIX_FMT_RGB565,
  99                 .colorspace = V4L2_COLORSPACE_SRGB,
 100                 .depth = 16,
 101                 .flags = ZORAN_FORMAT_CAPTURE |
 102                          ZORAN_FORMAT_OVERLAY,
 103                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif|
 104                            ZR36057_VFESPFR_LittleEndian,
 105         }, {
 106                 .name = "16-bit RGB BE",
 107                 .fourcc = V4L2_PIX_FMT_RGB565X,
 108                 .colorspace = V4L2_COLORSPACE_SRGB,
 109                 .depth = 16,
 110                 .flags = ZORAN_FORMAT_CAPTURE |
 111                          ZORAN_FORMAT_OVERLAY,
 112                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif,
 113         }, {
 114                 .name = "24-bit RGB",
 115                 .fourcc = V4L2_PIX_FMT_BGR24,
 116                 .colorspace = V4L2_COLORSPACE_SRGB,
 117                 .depth = 24,
 118                 .flags = ZORAN_FORMAT_CAPTURE |
 119                          ZORAN_FORMAT_OVERLAY,
 120                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24,
 121         }, {
 122                 .name = "32-bit RGB LE",
 123                 .fourcc = V4L2_PIX_FMT_BGR32,
 124                 .colorspace = V4L2_COLORSPACE_SRGB,
 125                 .depth = 32,
 126                 .flags = ZORAN_FORMAT_CAPTURE |
 127                          ZORAN_FORMAT_OVERLAY,
 128                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian,
 129         }, {
 130                 .name = "32-bit RGB BE",
 131                 .fourcc = V4L2_PIX_FMT_RGB32,
 132                 .colorspace = V4L2_COLORSPACE_SRGB,
 133                 .depth = 32,
 134                 .flags = ZORAN_FORMAT_CAPTURE |
 135                          ZORAN_FORMAT_OVERLAY,
 136                 .vfespfr = ZR36057_VFESPFR_RGB888,
 137         }, {
 138                 .name = "4:2:2, packed, YUYV",
 139                 .fourcc = V4L2_PIX_FMT_YUYV,
 140                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 141                 .depth = 16,
 142                 .flags = ZORAN_FORMAT_CAPTURE |
 143                          ZORAN_FORMAT_OVERLAY,
 144                 .vfespfr = ZR36057_VFESPFR_YUV422,
 145         }, {
 146                 .name = "4:2:2, packed, UYVY",
 147                 .fourcc = V4L2_PIX_FMT_UYVY,
 148                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 149                 .depth = 16,
 150                 .flags = ZORAN_FORMAT_CAPTURE |
 151                          ZORAN_FORMAT_OVERLAY,
 152                 .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian,
 153         }, {
 154                 .name = "Hardware-encoded Motion-JPEG",
 155                 .fourcc = V4L2_PIX_FMT_MJPEG,
 156                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 157                 .depth = 0,
 158                 .flags = ZORAN_FORMAT_CAPTURE |
 159                          ZORAN_FORMAT_PLAYBACK |
 160                          ZORAN_FORMAT_COMPRESSED,
 161         }
 162 };
 163 #define NUM_FORMATS ARRAY_SIZE(zoran_formats)
 164
 165         /* small helper function for calculating buffersizes for v4l2
 166          * we calculate the nearest higher power-of-two, which
 167          * will be the recommended buffersize */
 168 static __u32
 169 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
 170 {
 171         __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
 172         __u32 num = (1024 * 512) / (div);
 173         __u32 result = 2;
 174
 175         num--;
 176         while (num) {
 177                 num >>= 1;
 178                 result <<= 1;
 179         }
 180
 181         if (result > jpg_bufsize)
 182                 return jpg_bufsize;
 183         if (result < 8192)
 184                 return 8192;
 185         return result;
 186 }
 187
 188 /* forward references */
 189 static void v4l_fbuffer_free(struct zoran_fh *fh);
 190 static void jpg_fbuffer_free(struct zoran_fh *fh);
 191
 192 /* Set mapping mode */
 193 static void map_mode_raw(struct zoran_fh *fh)
 194 {
 195         fh->map_mode = ZORAN_MAP_MODE_RAW;
 196         fh->buffers.buffer_size = v4l_bufsize;
 197         fh->buffers.num_buffers = v4l_nbufs;
 198 }
 199 static void map_mode_jpg(struct zoran_fh *fh, int play)
 200 {
 201         fh->map_mode = play ? ZORAN_MAP_MODE_JPG_PLAY : ZORAN_MAP_MODE_JPG_REC;
 202         fh->buffers.buffer_size = jpg_bufsize;
 203         fh->buffers.num_buffers = jpg_nbufs;
 204 }
 205 static inline const char *mode_name(enum zoran_map_mode mode)
 206 {
 207         return mode == ZORAN_MAP_MODE_RAW ? "V4L" : "JPG";
 208 }
 209
 210 /*
 211  *   Allocate the V4L grab buffers
 212  *
 213  *   These have to be pysically contiguous.
 214  */
 215
 216 static int v4l_fbuffer_alloc(struct zoran_fh *fh)
 217 {
 218         struct zoran *zr = fh->zr;
 219         int i, off;
 220         unsigned char *mem;
 221
 222         for (i = 0; i < fh->buffers.num_buffers; i++) {
 223                 if (fh->buffers.buffer[i].v4l.fbuffer)
 224                         dprintk(2,
 225                                 KERN_WARNING
 226                                 "%s: %s - buffer %d already allocated!?\n",
 227                                 ZR_DEVNAME(zr), __func__, i);
 228
 229                 //udelay(20);
 230                 mem = kmalloc(fh->buffers.buffer_size,
 231                               GFP_KERNEL | __GFP_NOWARN);
 232                 if (!mem) {
 233                         dprintk(1,
 234                                 KERN_ERR
 235                                 "%s: %s - kmalloc for V4L buf %d failed\n",
 236                                 ZR_DEVNAME(zr), __func__, i);
 237                         v4l_fbuffer_free(fh);
 238                         return -ENOBUFS;
 239                 }
 240                 fh->buffers.buffer[i].v4l.fbuffer = mem;
 241                 fh->buffers.buffer[i].v4l.fbuffer_phys = virt_to_phys(mem);
 242                 fh->buffers.buffer[i].v4l.fbuffer_bus = virt_to_bus(mem);
 243                 for (off = 0; off < fh->buffers.buffer_size;
 244                      off += PAGE_SIZE)
 245                         SetPageReserved(virt_to_page(mem + off));
 246                 dprintk(4,
 247                         KERN_INFO
 248                         "%s: %s - V4L frame %d mem 0x%lx (bus: 0x%lx)\n",
 249                         ZR_DEVNAME(zr), __func__, i, (unsigned long) mem,
 250                         virt_to_bus(mem));
 251         }
 252
 253         fh->buffers.allocated = 1;
 254
 255         return 0;
 256 }
 257
 258 /* free the V4L grab buffers */
 259 static void v4l_fbuffer_free(struct zoran_fh *fh)
 260 {
 261         struct zoran *zr = fh->zr;
 262         int i, off;
 263         unsigned char *mem;
 264
 265         dprintk(4, KERN_INFO "%s: %s\n", ZR_DEVNAME(zr), __func__);
 266
 267         for (i = 0; i < fh->buffers.num_buffers; i++) {
 268                 if (!fh->buffers.buffer[i].v4l.fbuffer)
 269                         continue;
 270
 271                 mem = fh->buffers.buffer[i].v4l.fbuffer;
 272                 for (off = 0; off < fh->buffers.buffer_size;
 273                      off += PAGE_SIZE)
 274                         ClearPageReserved(virt_to_page(mem + off));
 275                 kfree(fh->buffers.buffer[i].v4l.fbuffer);
 276                 fh->buffers.buffer[i].v4l.fbuffer = NULL;
 277         }
 278
 279         fh->buffers.allocated = 0;
 280 }
 281
 282 /*
 283  *   Allocate the MJPEG grab buffers.
 284  *
 285  *   If a Natoma chipset is present and this is a revision 1 zr36057,
 286  *   each MJPEG buffer needs to be physically contiguous.
 287  *   (RJ: This statement is from Dave Perks' original driver,
 288  *   I could never check it because I have a zr36067)
 289  *
 290  *   RJ: The contents grab buffers needs never be accessed in the driver.
 291  *       Therefore there is no need to allocate them with vmalloc in order
 292  *       to get a contiguous virtual memory space.
 293  *       I don't understand why many other drivers first allocate them with
 294  *       vmalloc (which uses internally also get_zeroed_page, but delivers you
 295  *       virtual addresses) and then again have to make a lot of efforts
 296  *       to get the physical address.
 297  *
 298  *   Ben Capper:
 299  *       On big-endian architectures (such as ppc) some extra steps
 300  *       are needed. When reading and writing to the stat_com array
 301  *       and fragment buffers, the device expects to see little-
 302  *       endian values. The use of cpu_to_le32() and le32_to_cpu()
 303  *       in this function (and one or two others in zoran_device.c)
 304  *       ensure that these values are always stored in little-endian
 305  *       form, regardless of architecture. The zr36057 does Very Bad
 306  *       Things on big endian architectures if the stat_com array
 307  *       and fragment buffers are not little-endian.
 308  */
 309
 310 static int jpg_fbuffer_alloc(struct zoran_fh *fh)
 311 {
 312         struct zoran *zr = fh->zr;
 313         int i, j, off;
 314         u8 *mem;
 315
 316         for (i = 0; i < fh->buffers.num_buffers; i++) {
 317                 if (fh->buffers.buffer[i].jpg.frag_tab)
 318                         dprintk(2,
 319                                 KERN_WARNING
 320                                 "%s: %s - buffer %d already allocated!?\n",
 321                                 ZR_DEVNAME(zr), __func__, i);
 322
 323                 /* Allocate fragment table for this buffer */
 324
 325                 mem = (void *)get_zeroed_page(GFP_KERNEL);
 326                 if (mem == 0) {
 327                         dprintk(1,
 328                                 KERN_ERR
 329                                 "%s: %s - get_zeroed_page (frag_tab) failed for buffer %d\n",
 330                                 ZR_DEVNAME(zr), __func__, i);
 331                         jpg_fbuffer_free(fh);
 332                         return -ENOBUFS;
 333                 }
 334                 fh->buffers.buffer[i].jpg.frag_tab = (__le32 *)mem;
 335                 fh->buffers.buffer[i].jpg.frag_tab_bus = virt_to_bus(mem);
 336
 337                 if (fh->buffers.need_contiguous) {
 338                         mem = kmalloc(fh->buffers.buffer_size, GFP_KERNEL);
 339                         if (mem == NULL) {
 340                                 dprintk(1,
 341                                         KERN_ERR
 342                                         "%s: %s - kmalloc failed for buffer %d\n",
 343                                         ZR_DEVNAME(zr), __func__, i);
 344                                 jpg_fbuffer_free(fh);
 345                                 return -ENOBUFS;
 346                         }
 347                         fh->buffers.buffer[i].jpg.frag_tab[0] =
 348                                 cpu_to_le32(virt_to_bus(mem));
 349                         fh->buffers.buffer[i].jpg.frag_tab[1] =
 350                                 cpu_to_le32((fh->buffers.buffer_size >> 1) | 1);
 351                         for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
 352                                 SetPageReserved(virt_to_page(mem + off));
 353                 } else {
 354                         /* jpg_bufsize is already page aligned */
 355                         for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
 356                                 mem = (void *)get_zeroed_page(GFP_KERNEL);
 357                                 if (mem == NULL) {
 358                                         dprintk(1,
 359                                                 KERN_ERR
 360                                                 "%s: %s - get_zeroed_page failed for buffer %d\n",
 361                                                 ZR_DEVNAME(zr), __func__, i);
 362                                         jpg_fbuffer_free(fh);
 363                                         return -ENOBUFS;
 364                                 }
 365
 366                                 fh->buffers.buffer[i].jpg.frag_tab[2 * j] =
 367                                         cpu_to_le32(virt_to_bus(mem));
 368                                 fh->buffers.buffer[i].jpg.frag_tab[2 * j + 1] =
 369                                         cpu_to_le32((PAGE_SIZE >> 2) << 1);
 370                                 SetPageReserved(virt_to_page(mem));
 371                         }
 372
 373                         fh->buffers.buffer[i].jpg.frag_tab[2 * j - 1] |= cpu_to_le32(1);
 374                 }
 375         }
 376
 377         dprintk(4,
 378                 KERN_DEBUG "%s: %s - %d KB allocated\n",
 379                 ZR_DEVNAME(zr), __func__,
 380                 (fh->buffers.num_buffers * fh->buffers.buffer_size) >> 10);
 381
 382         fh->buffers.allocated = 1;
 383
 384         return 0;
 385 }
 386
 387 /* free the MJPEG grab buffers */
 388 static void jpg_fbuffer_free(struct zoran_fh *fh)
 389 {
 390         struct zoran *zr = fh->zr;
 391         int i, j, off;
 392         unsigned char *mem;
 393         __le32 frag_tab;
 394         struct zoran_buffer *buffer;
 395
 396         dprintk(4, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__);
 397
 398         for (i = 0, buffer = &fh->buffers.buffer[0];
 399              i < fh->buffers.num_buffers; i++, buffer++) {
 400                 if (!buffer->jpg.frag_tab)
 401                         continue;
 402
 403                 if (fh->buffers.need_contiguous) {
 404                         frag_tab = buffer->jpg.frag_tab[0];
 405
 406                         if (frag_tab) {
 407                                 mem = bus_to_virt(le32_to_cpu(frag_tab));
 408                                 for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
 409                                         ClearPageReserved(virt_to_page(mem + off));
 410                                 kfree(mem);
 411                                 buffer->jpg.frag_tab[0] = 0;
 412                                 buffer->jpg.frag_tab[1] = 0;
 413                         }
 414                 } else {
 415                         for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
 416                                 frag_tab = buffer->jpg.frag_tab[2 * j];
 417
 418                                 if (!frag_tab)
 419                                         break;
 420                                 ClearPageReserved(virt_to_page(bus_to_virt(le32_to_cpu(frag_tab))));
 421                                 free_page((unsigned long)bus_to_virt(le32_to_cpu(frag_tab)));
 422                                 buffer->jpg.frag_tab[2 * j] = 0;
 423                                 buffer->jpg.frag_tab[2 * j + 1] = 0;
 424                         }
 425                 }
 426
 427                 free_page((unsigned long)buffer->jpg.frag_tab);
 428                 buffer->jpg.frag_tab = NULL;
 429         }
 430
 431         fh->buffers.allocated = 0;
 432 }
 433
 434 /*
 435  *   V4L Buffer grabbing
 436  */
 437
 438 static int
 439 zoran_v4l_set_format (struct zoran_fh           *fh,
 440                       int                        width,
 441                       int                        height,
 442                       const struct zoran_format *format)
 443 {
 444         struct zoran *zr = fh->zr;
 445         int bpp;
 446
 447         /* Check size and format of the grab wanted */
 448
 449         if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
 450             height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
 451                 dprintk(1,
 452                         KERN_ERR
 453                         "%s: %s - wrong frame size (%dx%d)\n",
 454                         ZR_DEVNAME(zr), __func__, width, height);
 455                 return -EINVAL;
 456         }
 457
 458         bpp = (format->depth + 7) / 8;
 459
 460         /* Check against available buffer size */
 461         if (height * width * bpp > fh->buffers.buffer_size) {
 462                 dprintk(1,
 463                         KERN_ERR
 464                         "%s: %s - video buffer size (%d kB) is too small\n",
 465                         ZR_DEVNAME(zr), __func__, fh->buffers.buffer_size >> 10);
 466                 return -EINVAL;
 467         }
 468
 469         /* The video front end needs 4-byte alinged line sizes */
 470
 471         if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
 472                 dprintk(1,
 473                         KERN_ERR
 474                         "%s: %s - wrong frame alignment\n",
 475                         ZR_DEVNAME(zr), __func__);
 476                 return -EINVAL;
 477         }
 478
 479         fh->v4l_settings.width = width;
 480         fh->v4l_settings.height = height;
 481         fh->v4l_settings.format = format;
 482         fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
 483
 484         return 0;
 485 }
 486
 487 static int zoran_v4l_queue_frame(struct zoran_fh *fh, int num)
 488 {
 489         struct zoran *zr = fh->zr;
 490         unsigned long flags;
 491         int res = 0;
 492
 493         if (!fh->buffers.allocated) {
 494                 dprintk(1,
 495                         KERN_ERR
 496                         "%s: %s - buffers not yet allocated\n",
 497                         ZR_DEVNAME(zr), __func__);
 498                 res = -ENOMEM;
 499         }
 500
 501         /* No grabbing outside the buffer range! */
 502         if (num >= fh->buffers.num_buffers || num < 0) {
 503                 dprintk(1,
 504                         KERN_ERR
 505                         "%s: %s - buffer %d is out of range\n",
 506                         ZR_DEVNAME(zr), __func__, num);
 507                 res = -EINVAL;
 508         }
 509
 510         spin_lock_irqsave(&zr->spinlock, flags);
 511
 512         if (fh->buffers.active == ZORAN_FREE) {
 513                 if (zr->v4l_buffers.active == ZORAN_FREE) {
 514                         zr->v4l_buffers = fh->buffers;
 515                         fh->buffers.active = ZORAN_ACTIVE;
 516                 } else {
 517                         dprintk(1,
 518                                 KERN_ERR
 519                                 "%s: %s - another session is already capturing\n",
 520                                 ZR_DEVNAME(zr), __func__);
 521                         res = -EBUSY;
 522                 }
 523         }
 524
 525         /* make sure a grab isn't going on currently with this buffer */
 526         if (!res) {
 527                 switch (zr->v4l_buffers.buffer[num].state) {
 528                 default:
 529                 case BUZ_STATE_PEND:
 530                         if (zr->v4l_buffers.active == ZORAN_FREE) {
 531                                 fh->buffers.active = ZORAN_FREE;
 532                                 zr->v4l_buffers.allocated = 0;
 533                         }
 534                         res = -EBUSY;   /* what are you doing? */
 535                         break;
 536                 case BUZ_STATE_DONE:
 537                         dprintk(2,
 538                                 KERN_WARNING
 539                                 "%s: %s - queueing buffer %d in state DONE!?\n",
 540                                 ZR_DEVNAME(zr), __func__, num);
 541                 case BUZ_STATE_USER:
 542                         /* since there is at least one unused buffer there's room for at least
 543                          * one more pend[] entry */
 544                         zr->v4l_pend[zr->v4l_pend_head++ & V4L_MASK_FRAME] = num;
 545                         zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
 546                         zr->v4l_buffers.buffer[num].bs.length =
 547                             fh->v4l_settings.bytesperline *
 548                             zr->v4l_settings.height;
 549                         fh->buffers.buffer[num] = zr->v4l_buffers.buffer[num];
 550                         break;
 551                 }
 552         }
 553
 554         spin_unlock_irqrestore(&zr->spinlock, flags);
 555
 556         if (!res && zr->v4l_buffers.active == ZORAN_FREE)
 557                 zr->v4l_buffers.active = fh->buffers.active;
 558
 559         return res;
 560 }
 561
 562 /*
 563  * Sync on a V4L buffer
 564  */
 565
 566 static int v4l_sync(struct zoran_fh *fh, int frame)
 567 {
 568         struct zoran *zr = fh->zr;
 569         unsigned long flags;
 570
 571         if (fh->buffers.active == ZORAN_FREE) {
 572                 dprintk(1,
 573                         KERN_ERR
 574                         "%s: %s - no grab active for this session\n",
 575                         ZR_DEVNAME(zr), __func__);
 576                 return -EINVAL;
 577         }
 578
 579         /* check passed-in frame number */
 580         if (frame >= fh->buffers.num_buffers || frame < 0) {
 581                 dprintk(1,
 582                         KERN_ERR "%s: %s - frame %d is invalid\n",
 583                         ZR_DEVNAME(zr), __func__, frame);
 584                 return -EINVAL;
 585         }
 586
 587         /* Check if is buffer was queued at all */
 588         if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
 589                 dprintk(1,
 590                         KERN_ERR
 591                         "%s: %s - attempt to sync on a buffer which was not queued?\n",
 592                         ZR_DEVNAME(zr), __func__);
 593                 return -EPROTO;
 594         }
 595
 596         /* wait on this buffer to get ready */
 597         if (!wait_event_interruptible_timeout(zr->v4l_capq,
 598                 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND), 10*HZ))
 599                 return -ETIME;
 600         if (signal_pending(current))
 601                 return -ERESTARTSYS;
 602
 603         /* buffer should now be in BUZ_STATE_DONE */
 604         if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
 605                 dprintk(2,
 606                         KERN_ERR "%s: %s - internal state error\n",
 607                         ZR_DEVNAME(zr), __func__);
 608
 609         zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
 610         fh->buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
 611
 612         spin_lock_irqsave(&zr->spinlock, flags);
 613
 614         /* Check if streaming capture has finished */
 615         if (zr->v4l_pend_tail == zr->v4l_pend_head) {
 616                 zr36057_set_memgrab(zr, 0);
 617                 if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
 618                         fh->buffers.active = zr->v4l_buffers.active = ZORAN_FREE;
 619                         zr->v4l_buffers.allocated = 0;
 620                 }
 621         }
 622
 623         spin_unlock_irqrestore(&zr->spinlock, flags);
 624
 625         return 0;
 626 }
 627
 628 /*
 629  *   Queue a MJPEG buffer for capture/playback
 630  */
 631
 632 static int zoran_jpg_queue_frame(struct zoran_fh *fh, int num,
 633                                  enum zoran_codec_mode mode)
 634 {
 635         struct zoran *zr = fh->zr;
 636         unsigned long flags;
 637         int res = 0;
 638
 639         /* Check if buffers are allocated */
 640         if (!fh->buffers.allocated) {
 641                 dprintk(1,
 642                         KERN_ERR
 643                         "%s: %s - buffers not yet allocated\n",
 644                         ZR_DEVNAME(zr), __func__);
 645                 return -ENOMEM;
 646         }
 647
 648         /* No grabbing outside the buffer range! */
 649         if (num >= fh->buffers.num_buffers || num < 0) {
 650                 dprintk(1,
 651                         KERN_ERR
 652                         "%s: %s - buffer %d out of range\n",
 653                         ZR_DEVNAME(zr), __func__, num);
 654                 return -EINVAL;
 655         }
 656
 657         /* what is the codec mode right now? */
 658         if (zr->codec_mode == BUZ_MODE_IDLE) {
 659                 zr->jpg_settings = fh->jpg_settings;
 660         } else if (zr->codec_mode != mode) {
 661                 /* wrong codec mode active - invalid */
 662                 dprintk(1,
 663                         KERN_ERR
 664                         "%s: %s - codec in wrong mode\n",
 665                         ZR_DEVNAME(zr), __func__);
 666                 return -EINVAL;
 667         }
 668
 669         if (fh->buffers.active == ZORAN_FREE) {
 670                 if (zr->jpg_buffers.active == ZORAN_FREE) {
 671                         zr->jpg_buffers = fh->buffers;
 672                         fh->buffers.active = ZORAN_ACTIVE;
 673                 } else {
 674                         dprintk(1,
 675                                 KERN_ERR
 676                                 "%s: %s - another session is already capturing\n",
 677                                 ZR_DEVNAME(zr), __func__);
 678                         res = -EBUSY;
 679                 }
 680         }
 681
 682         if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
 683                 /* Ok load up the jpeg codec */
 684                 zr36057_enable_jpg(zr, mode);
 685         }
 686
 687         spin_lock_irqsave(&zr->spinlock, flags);
 688
 689         if (!res) {
 690                 switch (zr->jpg_buffers.buffer[num].state) {
 691                 case BUZ_STATE_DONE:
 692                         dprintk(2,
 693                                 KERN_WARNING
 694                                 "%s: %s - queing frame in BUZ_STATE_DONE state!?\n",
 695                                 ZR_DEVNAME(zr), __func__);
 696                 case BUZ_STATE_USER:
 697                         /* since there is at least one unused buffer there's room for at
 698                          *least one more pend[] entry */
 699                         zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] = num;
 700                         zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
 701                         fh->buffers.buffer[num] = zr->jpg_buffers.buffer[num];
 702                         zoran_feed_stat_com(zr);
 703                         break;
 704                 default:
 705                 case BUZ_STATE_DMA:
 706                 case BUZ_STATE_PEND:
 707                         if (zr->jpg_buffers.active == ZORAN_FREE) {
 708                                 fh->buffers.active = ZORAN_FREE;
 709                                 zr->jpg_buffers.allocated = 0;
 710                         }
 711                         res = -EBUSY;   /* what are you doing? */
 712                         break;
 713                 }
 714         }
 715
 716         spin_unlock_irqrestore(&zr->spinlock, flags);
 717
 718         if (!res && zr->jpg_buffers.active == ZORAN_FREE)
 719                 zr->jpg_buffers.active = fh->buffers.active;
 720
 721         return res;
 722 }
 723
 724 static int jpg_qbuf(struct zoran_fh *fh, int frame, enum zoran_codec_mode mode)
 725 {
 726         struct zoran *zr = fh->zr;
 727         int res = 0;
 728
 729         /* Does the user want to stop streaming? */
 730         if (frame < 0) {
 731                 if (zr->codec_mode == mode) {
 732                         if (fh->buffers.active == ZORAN_FREE) {
 733                                 dprintk(1,
 734                                         KERN_ERR
 735                                         "%s: %s(-1) - session not active\n",
 736                                         ZR_DEVNAME(zr), __func__);
 737                                 return -EINVAL;
 738                         }
 739                         fh->buffers.active = zr->jpg_buffers.active = ZORAN_FREE;
 740                         zr->jpg_buffers.allocated = 0;
 741                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
 742                         return 0;
 743                 } else {
 744                         dprintk(1,
 745                                 KERN_ERR
 746                                 "%s: %s - stop streaming but not in streaming mode\n",
 747                                 ZR_DEVNAME(zr), __func__);
 748                         return -EINVAL;
 749                 }
 750         }
 751
 752         if ((res = zoran_jpg_queue_frame(fh, frame, mode)))
 753                 return res;
 754
 755         /* Start the jpeg codec when the first frame is queued  */
 756         if (!res && zr->jpg_que_head == 1)
 757                 jpeg_start(zr);
 758
 759         return res;
 760 }
 761
 762 /*
 763  *   Sync on a MJPEG buffer
 764  */
 765
 766 static int jpg_sync(struct zoran_fh *fh, struct zoran_sync *bs)
 767 {
 768         struct zoran *zr = fh->zr;
 769         unsigned long flags;
 770         int frame;
 771
 772         if (fh->buffers.active == ZORAN_FREE) {
 773                 dprintk(1,
 774                         KERN_ERR
 775                         "%s: %s - capture is not currently active\n",
 776                         ZR_DEVNAME(zr), __func__);
 777                 return -EINVAL;
 778         }
 779         if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
 780             zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
 781                 dprintk(1,
 782                         KERN_ERR
 783                         "%s: %s - codec not in streaming mode\n",
 784                         ZR_DEVNAME(zr), __func__);
 785                 return -EINVAL;
 786         }
 787         if (!wait_event_interruptible_timeout(zr->jpg_capq,
 788                         (zr->jpg_que_tail != zr->jpg_dma_tail ||
 789                          zr->jpg_dma_tail == zr->jpg_dma_head),
 790                         10*HZ)) {
 791                 int isr;
 792
 793                 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
 794                 udelay(1);
 795                 zr->codec->control(zr->codec, CODEC_G_STATUS,
 796                                            sizeof(isr), &isr);
 797                 dprintk(1,
 798                         KERN_ERR
 799                         "%s: %s - timeout: codec isr=0x%02x\n",
 800                         ZR_DEVNAME(zr), __func__, isr);
 801
 802                 return -ETIME;
 803
 804         }
 805         if (signal_pending(current))
 806                 return -ERESTARTSYS;
 807
 808         spin_lock_irqsave(&zr->spinlock, flags);
 809
 810         if (zr->jpg_dma_tail != zr->jpg_dma_head)
 811                 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
 812         else
 813                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
 814
 815         /* buffer should now be in BUZ_STATE_DONE */
 816         if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
 817                 dprintk(2,
 818                         KERN_ERR "%s: %s - internal state error\n",
 819                         ZR_DEVNAME(zr), __func__);
 820
 821         *bs = zr->jpg_buffers.buffer[frame].bs;
 822         bs->frame = frame;
 823         zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
 824         fh->buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
 825
 826         spin_unlock_irqrestore(&zr->spinlock, flags);
 827
 828         return 0;
 829 }
 830
 831 static void zoran_open_init_session(struct zoran_fh *fh)
 832 {
 833         int i;
 834         struct zoran *zr = fh->zr;
 835
 836         /* Per default, map the V4L Buffers */
 837         map_mode_raw(fh);
 838
 839         /* take over the card's current settings */
 840         fh->overlay_settings = zr->overlay_settings;
 841         fh->overlay_settings.is_set = 0;
 842         fh->overlay_settings.format = zr->overlay_settings.format;
 843         fh->overlay_active = ZORAN_FREE;
 844
 845         /* v4l settings */
 846         fh->v4l_settings = zr->v4l_settings;
 847         /* jpg settings */
 848         fh->jpg_settings = zr->jpg_settings;
 849
 850         /* buffers */
 851         memset(&fh->buffers, 0, sizeof(fh->buffers));
 852         for (i = 0; i < MAX_FRAME; i++) {
 853                 fh->buffers.buffer[i].state = BUZ_STATE_USER;   /* nothing going on */
 854                 fh->buffers.buffer[i].bs.frame = i;
 855         }
 856         fh->buffers.allocated = 0;
 857         fh->buffers.active = ZORAN_FREE;
 858 }
 859
 860 static void zoran_close_end_session(struct zoran_fh *fh)
 861 {
 862         struct zoran *zr = fh->zr;
 863
 864         /* overlay */
 865         if (fh->overlay_active != ZORAN_FREE) {
 866                 fh->overlay_active = zr->overlay_active = ZORAN_FREE;
 867                 zr->v4l_overlay_active = 0;
 868                 if (!zr->v4l_memgrab_active)
 869                         zr36057_overlay(zr, 0);
 870                 zr->overlay_mask = NULL;
 871         }
 872
 873         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
 874                 /* v4l capture */
 875                 if (fh->buffers.active != ZORAN_FREE) {
 876                         unsigned long flags;
 877
 878                         spin_lock_irqsave(&zr->spinlock, flags);
 879                         zr36057_set_memgrab(zr, 0);
 880                         zr->v4l_buffers.allocated = 0;
 881                         zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
 882                         spin_unlock_irqrestore(&zr->spinlock, flags);
 883                 }
 884
 885                 /* v4l buffers */
 886                 if (fh->buffers.allocated)
 887                         v4l_fbuffer_free(fh);
 888         } else {
 889                 /* jpg capture */
 890                 if (fh->buffers.active != ZORAN_FREE) {
 891                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
 892                         zr->jpg_buffers.allocated = 0;
 893                         zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
 894                 }
 895
 896                 /* jpg buffers */
 897                 if (fh->buffers.allocated)
 898                         jpg_fbuffer_free(fh);
 899         }
 900 }
 901
 902 /*
 903  *   Open a zoran card. Right now the flags stuff is just playing
 904  */
 905
 906 static int zoran_open(struct file *file)
 907 {
 908         struct zoran *zr = video_drvdata(file);
 909         struct zoran_fh *fh;
 910         int res, first_open = 0;
 911
 912         dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(-)=%d\n",
 913                 ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user + 1);
 914
 915         lock_kernel();
 916
 917         if (zr->user >= 2048) {
 918                 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
 919                         ZR_DEVNAME(zr), zr->user);
 920                 res = -EBUSY;
 921                 goto fail_unlock;
 922         }
 923
 924         /* now, create the open()-specific file_ops struct */
 925         fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
 926         if (!fh) {
 927                 dprintk(1,
 928                         KERN_ERR
 929                         "%s: %s - allocation of zoran_fh failed\n",
 930                         ZR_DEVNAME(zr), __func__);
 931                 res = -ENOMEM;
 932                 goto fail_unlock;
 933         }
 934         /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
 935          * on norm-change! */
 936         fh->overlay_mask =
 937             kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
 938         if (!fh->overlay_mask) {
 939                 dprintk(1,
 940                         KERN_ERR
 941                         "%s: %s - allocation of overlay_mask failed\n",
 942                         ZR_DEVNAME(zr), __func__);
 943                 res = -ENOMEM;
 944                 goto fail_fh;
 945         }
 946
 947         if (zr->user++ == 0)
 948                 first_open = 1;
 949
 950         /*mutex_unlock(&zr->resource_lock);*/
 951
 952         /* default setup - TODO: look at flags */
 953         if (first_open) {       /* First device open */
 954                 zr36057_restart(zr);
 955                 zoran_open_init_params(zr);
 956                 zoran_init_hardware(zr);
 957
 958                 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
 959         }
 960
 961         /* set file_ops stuff */
 962         file->private_data = fh;
 963         fh->zr = zr;
 964         zoran_open_init_session(fh);
 965         unlock_kernel();
 966
 967         return 0;
 968
 969 fail_fh:
 970         kfree(fh);
 971 fail_unlock:
 972         unlock_kernel();
 973
 974         dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n",
 975                 ZR_DEVNAME(zr), res, zr->user);
 976
 977         return res;
 978 }
 979
 980 static int
 981 zoran_close(struct file  *file)
 982 {
 983         struct zoran_fh *fh = file->private_data;
 984         struct zoran *zr = fh->zr;
 985
 986         dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(+)=%d\n",
 987                 ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user - 1);
 988
 989         /* kernel locks (fs/device.c), so don't do that ourselves
 990          * (prevents deadlocks) */
 991         /*mutex_lock(&zr->resource_lock);*/
 992
 993         zoran_close_end_session(fh);
 994
 995         if (zr->user-- == 1) {  /* Last process */
 996                 /* Clean up JPEG process */
 997                 wake_up_interruptible(&zr->jpg_capq);
 998                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
 999                 zr->jpg_buffers.allocated = 0;
1000                 zr->jpg_buffers.active = ZORAN_FREE;
1001
1002                 /* disable interrupts */
1003                 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1004
1005                 if (zr36067_debug > 1)
1006                         print_interrupts(zr);
1007
1008                 /* Overlay off */
1009                 zr->v4l_overlay_active = 0;
1010                 zr36057_overlay(zr, 0);
1011                 zr->overlay_mask = NULL;
1012
1013                 /* capture off */
1014                 wake_up_interruptible(&zr->v4l_capq);
1015                 zr36057_set_memgrab(zr, 0);
1016                 zr->v4l_buffers.allocated = 0;
1017                 zr->v4l_buffers.active = ZORAN_FREE;
1018                 zoran_set_pci_master(zr, 0);
1019
1020                 if (!pass_through) {    /* Switch to color bar */
1021                         struct v4l2_routing route = { 2, 0 };
1022
1023                         decoder_call(zr, video, s_stream, 0);
1024                         encoder_call(zr, video, s_routing, &route);
1025                 }
1026         }
1027
1028         file->private_data = NULL;
1029         kfree(fh->overlay_mask);
1030         kfree(fh);
1031
1032         dprintk(4, KERN_INFO "%s: %s done\n", ZR_DEVNAME(zr), __func__);
1033
1034         return 0;
1035 }
1036
1037
1038 static ssize_t
1039 zoran_read (struct file *file,
1040             char        __user *data,
1041             size_t       count,
1042             loff_t      *ppos)
1043 {
1044         /* we simply don't support read() (yet)... */
1045
1046         return -EINVAL;
1047 }
1048
1049 static ssize_t
1050 zoran_write (struct file *file,
1051              const char  __user *data,
1052              size_t       count,
1053              loff_t      *ppos)
1054 {
1055         /* ...and the same goes for write() */
1056
1057         return -EINVAL;
1058 }
1059
1060 static int setup_fbuffer(struct zoran_fh *fh,
1061                void                      *base,
1062                const struct zoran_format *fmt,
1063                int                        width,
1064                int                        height,
1065                int                        bytesperline)
1066 {
1067         struct zoran *zr = fh->zr;
1068
1069         /* (Ronald) v4l/v4l2 guidelines */
1070         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1071                 return -EPERM;
1072
1073         /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
1074            ALi Magik (that needs very low latency while the card needs a
1075            higher value always) */
1076
1077         if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
1078                 return -ENXIO;
1079
1080         /* we need a bytesperline value, even if not given */
1081         if (!bytesperline)
1082                 bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
1083
1084 #if 0
1085         if (zr->overlay_active) {
1086                 /* dzjee... stupid users... don't even bother to turn off
1087                  * overlay before changing the memory location...
1088                  * normally, we would return errors here. However, one of
1089                  * the tools that does this is... xawtv! and since xawtv
1090                  * is used by +/- 99% of the users, we'd rather be user-
1091                  * friendly and silently do as if nothing went wrong */
1092                 dprintk(3,
1093                         KERN_ERR
1094                         "%s: %s - forced overlay turnoff because framebuffer changed\n",
1095                         ZR_DEVNAME(zr), __func__);
1096                 zr36057_overlay(zr, 0);
1097         }
1098 #endif
1099
1100         if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
1101                 dprintk(1,
1102                         KERN_ERR
1103                         "%s: %s - no valid overlay format given\n",
1104                         ZR_DEVNAME(zr), __func__);
1105                 return -EINVAL;
1106         }
1107         if (height <= 0 || width <= 0 || bytesperline <= 0) {
1108                 dprintk(1,
1109                         KERN_ERR
1110                         "%s: %s - invalid height/width/bpl value (%d|%d|%d)\n",
1111                         ZR_DEVNAME(zr), __func__, width, height, bytesperline);
1112                 return -EINVAL;
1113         }
1114         if (bytesperline & 3) {
1115                 dprintk(1,
1116                         KERN_ERR
1117                         "%s: %s - bytesperline (%d) must be 4-byte aligned\n",
1118                         ZR_DEVNAME(zr), __func__, bytesperline);
1119                 return -EINVAL;
1120         }
1121
1122         zr->vbuf_base = (void *) ((unsigned long) base & ~3);
1123         zr->vbuf_height = height;
1124         zr->vbuf_width = width;
1125         zr->vbuf_depth = fmt->depth;
1126         zr->overlay_settings.format = fmt;
1127         zr->vbuf_bytesperline = bytesperline;
1128
1129         /* The user should set new window parameters */
1130         zr->overlay_settings.is_set = 0;
1131
1132         return 0;
1133 }
1134
1135
1136 static int setup_window(struct zoran_fh *fh, int x, int y, int width, int height,
1137         struct v4l2_clip __user *clips, int clipcount, void __user *bitmap)
1138 {
1139         struct zoran *zr = fh->zr;
1140         struct v4l2_clip *vcp = NULL;
1141         int on, end;
1142
1143
1144         if (!zr->vbuf_base) {
1145                 dprintk(1,
1146                         KERN_ERR
1147                         "%s: %s - frame buffer has to be set first\n",
1148                         ZR_DEVNAME(zr), __func__);
1149                 return -EINVAL;
1150         }
1151
1152         if (!fh->overlay_settings.format) {
1153                 dprintk(1,
1154                         KERN_ERR
1155                         "%s: %s - no overlay format set\n",
1156                         ZR_DEVNAME(zr), __func__);
1157                 return -EINVAL;
1158         }
1159
1160         /*
1161          * The video front end needs 4-byte alinged line sizes, we correct that
1162          * silently here if necessary
1163          */
1164         if (zr->vbuf_depth == 15 || zr->vbuf_depth == 16) {
1165                 end = (x + width) & ~1; /* round down */
1166                 x = (x + 1) & ~1;       /* round up */
1167                 width = end - x;
1168         }
1169
1170         if (zr->vbuf_depth == 24) {
1171                 end = (x + width) & ~3; /* round down */
1172                 x = (x + 3) & ~3;       /* round up */
1173                 width = end - x;
1174         }
1175
1176         if (width > BUZ_MAX_WIDTH)
1177                 width = BUZ_MAX_WIDTH;
1178         if (height > BUZ_MAX_HEIGHT)
1179                 height = BUZ_MAX_HEIGHT;
1180
1181         /* Check for vaild parameters */
1182         if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
1183             width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
1184                 dprintk(1,
1185                         KERN_ERR
1186                         "%s: %s - width = %d or height = %d invalid\n",
1187                         ZR_DEVNAME(zr), __func__, width, height);
1188                 return -EINVAL;
1189         }
1190
1191         fh->overlay_settings.x = x;
1192         fh->overlay_settings.y = y;
1193         fh->overlay_settings.width = width;
1194         fh->overlay_settings.height = height;
1195         fh->overlay_settings.clipcount = clipcount;
1196
1197         /*
1198          * If an overlay is running, we have to switch it off
1199          * and switch it on again in order to get the new settings in effect.
1200          *
1201          * We also want to avoid that the overlay mask is written
1202          * when an overlay is running.
1203          */
1204
1205         on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
1206             zr->overlay_active != ZORAN_FREE &&
1207             fh->overlay_active != ZORAN_FREE;
1208         if (on)
1209                 zr36057_overlay(zr, 0);
1210
1211         /*
1212          *   Write the overlay mask if clips are wanted.
1213          *   We prefer a bitmap.
1214          */
1215         if (bitmap) {
1216                 /* fake value - it just means we want clips */
1217                 fh->overlay_settings.clipcount = 1;
1218
1219                 if (copy_from_user(fh->overlay_mask, bitmap,
1220                                    (width * height + 7) / 8)) {
1221                         return -EFAULT;
1222                 }
1223         } else if (clipcount > 0) {
1224                 /* write our own bitmap from the clips */
1225                 vcp = vmalloc(sizeof(struct v4l2_clip) * (clipcount + 4));
1226                 if (vcp == NULL) {
1227                         dprintk(1,
1228                                 KERN_ERR
1229                                 "%s: %s - Alloc of clip mask failed\n",
1230                                 ZR_DEVNAME(zr), __func__);
1231                         return -ENOMEM;
1232                 }
1233                 if (copy_from_user
1234                     (vcp, clips, sizeof(struct v4l2_clip) * clipcount)) {
1235                         vfree(vcp);
1236                         return -EFAULT;
1237                 }
1238                 write_overlay_mask(fh, vcp, clipcount);
1239                 vfree(vcp);
1240         }
1241
1242         fh->overlay_settings.is_set = 1;
1243         if (fh->overlay_active != ZORAN_FREE &&
1244             zr->overlay_active != ZORAN_FREE)
1245                 zr->overlay_settings = fh->overlay_settings;
1246
1247         if (on)
1248                 zr36057_overlay(zr, 1);
1249
1250         /* Make sure the changes come into effect */
1251         return wait_grab_pending(zr);
1252 }
1253
1254 static int setup_overlay(struct zoran_fh *fh, int on)
1255 {
1256         struct zoran *zr = fh->zr;
1257
1258         /* If there is nothing to do, return immediatly */
1259         if ((on && fh->overlay_active != ZORAN_FREE) ||
1260             (!on && fh->overlay_active == ZORAN_FREE))
1261                 return 0;
1262
1263         /* check whether we're touching someone else's overlay */
1264         if (on && zr->overlay_active != ZORAN_FREE &&
1265             fh->overlay_active == ZORAN_FREE) {
1266                 dprintk(1,
1267                         KERN_ERR
1268                         "%s: %s - overlay is already active for another session\n",
1269                         ZR_DEVNAME(zr), __func__);
1270                 return -EBUSY;
1271         }
1272         if (!on && zr->overlay_active != ZORAN_FREE &&
1273             fh->overlay_active == ZORAN_FREE) {
1274                 dprintk(1,
1275                         KERN_ERR
1276                         "%s: %s - you cannot cancel someone else's session\n",
1277                         ZR_DEVNAME(zr), __func__);
1278                 return -EPERM;
1279         }
1280
1281         if (on == 0) {
1282                 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1283                 zr->v4l_overlay_active = 0;
1284                 /* When a grab is running, the video simply
1285                  * won't be switched on any more */
1286                 if (!zr->v4l_memgrab_active)
1287                         zr36057_overlay(zr, 0);
1288                 zr->overlay_mask = NULL;
1289         } else {
1290                 if (!zr->vbuf_base || !fh->overlay_settings.is_set) {
1291                         dprintk(1,
1292                                 KERN_ERR
1293                                 "%s: %s - buffer or window not set\n",
1294                                 ZR_DEVNAME(zr), __func__);
1295                         return -EINVAL;
1296                 }
1297                 if (!fh->overlay_settings.format) {
1298                         dprintk(1,
1299                                 KERN_ERR
1300                                 "%s: %s - no overlay format set\n",
1301                                 ZR_DEVNAME(zr), __func__);
1302                         return -EINVAL;
1303                 }
1304                 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1305                 zr->v4l_overlay_active = 1;
1306                 zr->overlay_mask = fh->overlay_mask;
1307                 zr->overlay_settings = fh->overlay_settings;
1308                 if (!zr->v4l_memgrab_active)
1309                         zr36057_overlay(zr, 1);
1310                 /* When a grab is running, the video will be
1311                  * switched on when grab is finished */
1312         }
1313
1314         /* Make sure the changes come into effect */
1315         return wait_grab_pending(zr);
1316 }
1317
1318 /* get the status of a buffer in the clients buffer queue */
1319 static int zoran_v4l2_buffer_status(struct zoran_fh *fh,
1320                                     struct v4l2_buffer *buf, int num)
1321 {
1322         struct zoran *zr = fh->zr;
1323         unsigned long flags;
1324
1325         buf->flags = V4L2_BUF_FLAG_MAPPED;
1326
1327         switch (fh->map_mode) {
1328         case ZORAN_MAP_MODE_RAW:
1329                 /* check range */
1330                 if (num < 0 || num >= fh->buffers.num_buffers ||
1331                     !fh->buffers.allocated) {
1332                         dprintk(1,
1333                                 KERN_ERR
1334                                 "%s: %s - wrong number or buffers not allocated\n",
1335                                 ZR_DEVNAME(zr), __func__);
1336                         return -EINVAL;
1337                 }
1338
1339                 spin_lock_irqsave(&zr->spinlock, flags);
1340                 dprintk(3,
1341                         KERN_DEBUG
1342                         "%s: %s() - raw active=%c, buffer %d: state=%c, map=%c\n",
1343                         ZR_DEVNAME(zr), __func__,
1344                         "FAL"[fh->buffers.active], num,
1345                         "UPMD"[zr->v4l_buffers.buffer[num].state],
1346                         fh->buffers.buffer[num].map ? 'Y' : 'N');
1347                 spin_unlock_irqrestore(&zr->spinlock, flags);
1348
1349                 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1350                 buf->length = fh->buffers.buffer_size;
1351
1352                 /* get buffer */
1353                 buf->bytesused = fh->buffers.buffer[num].bs.length;
1354                 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
1355                     fh->buffers.buffer[num].state == BUZ_STATE_USER) {
1356                         buf->sequence = fh->buffers.buffer[num].bs.seq;
1357                         buf->flags |= V4L2_BUF_FLAG_DONE;
1358                         buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
1359                 } else {
1360                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1361                 }
1362
1363                 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1364                         buf->field = V4L2_FIELD_TOP;
1365                 else
1366                         buf->field = V4L2_FIELD_INTERLACED;
1367
1368                 break;
1369
1370         case ZORAN_MAP_MODE_JPG_REC:
1371         case ZORAN_MAP_MODE_JPG_PLAY:
1372
1373                 /* check range */
1374                 if (num < 0 || num >= fh->buffers.num_buffers ||
1375                     !fh->buffers.allocated) {
1376                         dprintk(1,
1377                                 KERN_ERR
1378                                 "%s: %s - wrong number or buffers not allocated\n",
1379                                 ZR_DEVNAME(zr), __func__);
1380                         return -EINVAL;
1381                 }
1382
1383                 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1384                               V4L2_BUF_TYPE_VIDEO_CAPTURE :
1385                               V4L2_BUF_TYPE_VIDEO_OUTPUT;
1386                 buf->length = fh->buffers.buffer_size;
1387
1388                 /* these variables are only written after frame has been captured */
1389                 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
1390                     fh->buffers.buffer[num].state == BUZ_STATE_USER) {
1391                         buf->sequence = fh->buffers.buffer[num].bs.seq;
1392                         buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
1393                         buf->bytesused = fh->buffers.buffer[num].bs.length;
1394                         buf->flags |= V4L2_BUF_FLAG_DONE;
1395                 } else {
1396                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1397                 }
1398
1399                 /* which fields are these? */
1400                 if (fh->jpg_settings.TmpDcm != 1)
1401                         buf->field = fh->jpg_settings.odd_even ?
1402                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1403                 else
1404                         buf->field = fh->jpg_settings.odd_even ?
1405                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT;
1406
1407                 break;
1408
1409         default:
1410
1411                 dprintk(5,
1412                         KERN_ERR
1413                         "%s: %s - invalid buffer type|map_mode (%d|%d)\n",
1414                         ZR_DEVNAME(zr), __func__, buf->type, fh->map_mode);
1415                 return -EINVAL;
1416         }
1417
1418         buf->memory = V4L2_MEMORY_MMAP;
1419         buf->index = num;
1420         buf->m.offset = buf->length * num;
1421
1422         return 0;
1423 }
1424
1425 static int
1426 zoran_set_norm (struct zoran *zr,
1427                 v4l2_std_id norm)
1428 {
1429         int on;
1430
1431         if (zr->v4l_buffers.active != ZORAN_FREE ||
1432             zr->jpg_buffers.active != ZORAN_FREE) {
1433                 dprintk(1,
1434                         KERN_WARNING
1435                         "%s: %s called while in playback/capture mode\n",
1436                         ZR_DEVNAME(zr), __func__);
1437                 return -EBUSY;
1438         }
1439
1440         if (!(norm & zr->card.norms)) {
1441                 dprintk(1,
1442                         KERN_ERR "%s: %s - unsupported norm %llx\n",
1443                         ZR_DEVNAME(zr), __func__, norm);
1444                 return -EINVAL;
1445         }
1446
1447         if (norm == V4L2_STD_ALL) {
1448                 int status = 0;
1449                 v4l2_std_id std = 0;
1450
1451                 decoder_call(zr, video, querystd, &std);
1452                 decoder_s_std(zr, std);
1453
1454                 /* let changes come into effect */
1455                 ssleep(2);
1456
1457                 decoder_call(zr, video, g_input_status, &status);
1458                 if (status & V4L2_IN_ST_NO_SIGNAL) {
1459                         dprintk(1,
1460                                 KERN_ERR
1461                                 "%s: %s - no norm detected\n",
1462                                 ZR_DEVNAME(zr), __func__);
1463                         /* reset norm */
1464                         decoder_s_std(zr, zr->norm);
1465                         return -EIO;
1466                 }
1467
1468                 norm = std;
1469         }
1470         if (norm & V4L2_STD_SECAM)
1471                 zr->timing = zr->card.tvn[2];
1472         else if (norm & V4L2_STD_NTSC)
1473                 zr->timing = zr->card.tvn[1];
1474         else
1475                 zr->timing = zr->card.tvn[0];
1476
1477         /* We switch overlay off and on since a change in the
1478          * norm needs different VFE settings */
1479         on = zr->overlay_active && !zr->v4l_memgrab_active;
1480         if (on)
1481                 zr36057_overlay(zr, 0);
1482
1483         decoder_s_std(zr, norm);
1484         encoder_call(zr, video, s_std_output, norm);
1485
1486         if (on)
1487                 zr36057_overlay(zr, 1);
1488
1489         /* Make sure the changes come into effect */
1490         zr->norm = norm;
1491
1492         return 0;
1493 }
1494
1495 static int
1496 zoran_set_input (struct zoran *zr,
1497                  int           input)
1498 {
1499         struct v4l2_routing route = { 0, 0 };
1500
1501         if (input == zr->input) {
1502                 return 0;
1503         }
1504
1505         if (zr->v4l_buffers.active != ZORAN_FREE ||
1506             zr->jpg_buffers.active != ZORAN_FREE) {
1507                 dprintk(1,
1508                         KERN_WARNING
1509                         "%s: %s called while in playback/capture mode\n",
1510                         ZR_DEVNAME(zr), __func__);
1511                 return -EBUSY;
1512         }
1513
1514         if (input < 0 || input >= zr->card.inputs) {
1515                 dprintk(1,
1516                         KERN_ERR
1517                         "%s: %s - unnsupported input %d\n",
1518                         ZR_DEVNAME(zr), __func__, input);
1519                 return -EINVAL;
1520         }
1521
1522         route.input = zr->card.input[input].muxsel;
1523         zr->input = input;
1524
1525         decoder_s_routing(zr, &route);
1526
1527         return 0;
1528 }
1529
1530 /*
1531  *   ioctl routine
1532  */
1533
1534 #ifdef CONFIG_VIDEO_V4L1_COMPAT
1535 static long zoran_default(struct file *file, void *__fh, int cmd, void *arg)
1536 {
1537         struct zoran_fh *fh = __fh;
1538         struct zoran *zr = fh->zr;
1539         struct zoran_jpg_settings settings;
1540
1541         switch (cmd) {
1542         case BUZIOC_G_PARAMS:
1543         {
1544                 struct zoran_params *bparams = arg;
1545
1546                 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_PARAMS\n", ZR_DEVNAME(zr));
1547
1548                 memset(bparams, 0, sizeof(struct zoran_params));
1549                 bparams->major_version = MAJOR_VERSION;
1550                 bparams->minor_version = MINOR_VERSION;
1551
1552                 mutex_lock(&zr->resource_lock);
1553
1554                 if (zr->norm & V4L2_STD_NTSC)
1555                         bparams->norm = VIDEO_MODE_NTSC;
1556                 else if (zr->norm & V4L2_STD_PAL)
1557                         bparams->norm = VIDEO_MODE_PAL;
1558                 else
1559                         bparams->norm = VIDEO_MODE_SECAM;
1560
1561                 bparams->input = zr->input;
1562
1563                 bparams->decimation = fh->jpg_settings.decimation;
1564                 bparams->HorDcm = fh->jpg_settings.HorDcm;
1565                 bparams->VerDcm = fh->jpg_settings.VerDcm;
1566                 bparams->TmpDcm = fh->jpg_settings.TmpDcm;
1567                 bparams->field_per_buff = fh->jpg_settings.field_per_buff;
1568                 bparams->img_x = fh->jpg_settings.img_x;
1569                 bparams->img_y = fh->jpg_settings.img_y;
1570                 bparams->img_width = fh->jpg_settings.img_width;
1571                 bparams->img_height = fh->jpg_settings.img_height;
1572                 bparams->odd_even = fh->jpg_settings.odd_even;
1573
1574                 bparams->quality = fh->jpg_settings.jpg_comp.quality;
1575                 bparams->APPn = fh->jpg_settings.jpg_comp.APPn;
1576                 bparams->APP_len = fh->jpg_settings.jpg_comp.APP_len;
1577                 memcpy(bparams->APP_data,
1578                        fh->jpg_settings.jpg_comp.APP_data,
1579                        sizeof(bparams->APP_data));
1580                 bparams->COM_len = zr->jpg_settings.jpg_comp.COM_len;
1581                 memcpy(bparams->COM_data,
1582                        fh->jpg_settings.jpg_comp.COM_data,
1583                        sizeof(bparams->COM_data));
1584                 bparams->jpeg_markers =
1585                     fh->jpg_settings.jpg_comp.jpeg_markers;
1586
1587                 mutex_unlock(&zr->resource_lock);
1588
1589                 bparams->VFIFO_FB = 0;
1590
1591                 return 0;
1592         }
1593
1594         case BUZIOC_S_PARAMS:
1595         {
1596                 struct zoran_params *bparams = arg;
1597                 int res = 0;
1598
1599                 dprintk(3, KERN_DEBUG "%s: BUZIOC_S_PARAMS\n", ZR_DEVNAME(zr));
1600
1601                 settings.decimation = bparams->decimation;
1602                 settings.HorDcm = bparams->HorDcm;
1603                 settings.VerDcm = bparams->VerDcm;
1604                 settings.TmpDcm = bparams->TmpDcm;
1605                 settings.field_per_buff = bparams->field_per_buff;
1606                 settings.img_x = bparams->img_x;
1607                 settings.img_y = bparams->img_y;
1608                 settings.img_width = bparams->img_width;
1609                 settings.img_height = bparams->img_height;
1610                 settings.odd_even = bparams->odd_even;
1611
1612                 settings.jpg_comp.quality = bparams->quality;
1613                 settings.jpg_comp.APPn = bparams->APPn;
1614                 settings.jpg_comp.APP_len = bparams->APP_len;
1615                 memcpy(settings.jpg_comp.APP_data, bparams->APP_data,
1616                        sizeof(bparams->APP_data));
1617                 settings.jpg_comp.COM_len = bparams->COM_len;
1618                 memcpy(settings.jpg_comp.COM_data, bparams->COM_data,
1619                        sizeof(bparams->COM_data));
1620                 settings.jpg_comp.jpeg_markers = bparams->jpeg_markers;
1621
1622                 mutex_lock(&zr->resource_lock);
1623
1624                 if (zr->codec_mode != BUZ_MODE_IDLE) {
1625                         dprintk(1,
1626                                 KERN_ERR
1627                                 "%s: BUZIOC_S_PARAMS called, but Buz in capture/playback mode\n",
1628                                 ZR_DEVNAME(zr));
1629                         res = -EINVAL;
1630                         goto sparams_unlock_and_return;
1631                 }
1632
1633                 /* Check the params first before overwriting our
1634                  * nternal values */
1635                 if (zoran_check_jpg_settings(zr, &settings, 0)) {
1636                         res = -EINVAL;
1637                         goto sparams_unlock_and_return;
1638                 }
1639
1640                 fh->jpg_settings = settings;
1641 sparams_unlock_and_return:
1642                 mutex_unlock(&zr->resource_lock);
1643
1644                 return res;
1645         }
1646
1647         case BUZIOC_REQBUFS:
1648         {
1649                 struct zoran_requestbuffers *breq = arg;
1650                 int res = 0;
1651
1652                 dprintk(3,
1653                         KERN_DEBUG
1654                         "%s: BUZIOC_REQBUFS - count=%lu, size=%lu\n",
1655                         ZR_DEVNAME(zr), breq->count, breq->size);
1656
1657                 /* Enforce reasonable lower and upper limits */
1658                 if (breq->count < 4)
1659                         breq->count = 4;        /* Could be choosen smaller */
1660                 if (breq->count > jpg_nbufs)
1661                         breq->count = jpg_nbufs;
1662                 breq->size = PAGE_ALIGN(breq->size);
1663                 if (breq->size < 8192)
1664                         breq->size = 8192;      /* Arbitrary */
1665                 /* breq->size is limited by 1 page for the stat_com
1666                  * tables to a Maximum of 2 MB */
1667                 if (breq->size > jpg_bufsize)
1668                         breq->size = jpg_bufsize;
1669
1670                 mutex_lock(&zr->resource_lock);
1671
1672                 if (fh->buffers.allocated) {
1673                         dprintk(1,
1674                                 KERN_ERR
1675                                 "%s: BUZIOC_REQBUFS - buffers already allocated\n",
1676                                 ZR_DEVNAME(zr));
1677                         res = -EBUSY;
1678                         goto jpgreqbuf_unlock_and_return;
1679                 }
1680
1681                 /* The next mmap will map the MJPEG buffers - could
1682                  * also be *_PLAY, but it doesn't matter here */
1683                 map_mode_jpg(fh, 0);
1684                 fh->buffers.num_buffers = breq->count;
1685                 fh->buffers.buffer_size = breq->size;
1686
1687                 if (jpg_fbuffer_alloc(fh)) {
1688                         res = -ENOMEM;
1689                         goto jpgreqbuf_unlock_and_return;
1690                 }
1691
1692 jpgreqbuf_unlock_and_return:
1693                 mutex_unlock(&zr->resource_lock);
1694
1695                 return res;
1696         }
1697
1698         case BUZIOC_QBUF_CAPT:
1699         {
1700                 int *frame = arg, res;
1701
1702                 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_CAPT - frame=%d\n",
1703                         ZR_DEVNAME(zr), *frame);
1704
1705                 mutex_lock(&zr->resource_lock);
1706                 res = jpg_qbuf(fh, *frame, BUZ_MODE_MOTION_COMPRESS);
1707                 mutex_unlock(&zr->resource_lock);
1708
1709                 return res;
1710         }
1711
1712         case BUZIOC_QBUF_PLAY:
1713         {
1714                 int *frame = arg, res;
1715
1716                 dprintk(3, KERN_DEBUG "%s: BUZIOC_QBUF_PLAY - frame=%d\n",
1717                         ZR_DEVNAME(zr), *frame);
1718
1719                 mutex_lock(&zr->resource_lock);
1720                 res = jpg_qbuf(fh, *frame, BUZ_MODE_MOTION_DECOMPRESS);
1721                 mutex_unlock(&zr->resource_lock);
1722
1723                 return res;
1724         }
1725
1726         case BUZIOC_SYNC:
1727         {
1728                 struct zoran_sync *bsync = arg;
1729                 int res;
1730
1731                 dprintk(3, KERN_DEBUG "%s: BUZIOC_SYNC\n", ZR_DEVNAME(zr));
1732
1733                 mutex_lock(&zr->resource_lock);
1734
1735                 if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
1736                         dprintk(2, KERN_WARNING
1737                                 "%s: %s - not in jpg capture mode\n",
1738                                 ZR_DEVNAME(zr), __func__);
1739                         res = -EINVAL;
1740                 } else {
1741                         res = jpg_sync(fh, bsync);
1742                 }
1743                 mutex_unlock(&zr->resource_lock);
1744
1745                 return res;
1746         }
1747
1748         case BUZIOC_G_STATUS:
1749         {
1750                 struct zoran_status *bstat = arg;
1751                 struct v4l2_routing route = { 0, 0 };
1752                 int status = 0, res = 0;
1753                 v4l2_std_id norm;
1754
1755                 dprintk(3, KERN_DEBUG "%s: BUZIOC_G_STATUS\n", ZR_DEVNAME(zr));
1756
1757                 if (zr->codec_mode != BUZ_MODE_IDLE) {
1758                         dprintk(1,
1759                                 KERN_ERR
1760                                 "%s: BUZIOC_G_STATUS called but Buz in capture/playback mode\n",
1761                                 ZR_DEVNAME(zr));
1762                         return -EINVAL;
1763                 }
1764
1765                 route.input = zr->card.input[bstat->input].muxsel;
1766
1767                 mutex_lock(&zr->resource_lock);
1768
1769                 if (zr->codec_mode != BUZ_MODE_IDLE) {
1770                         dprintk(1,
1771                                 KERN_ERR
1772                                 "%s: BUZIOC_G_STATUS called, but Buz in capture/playback mode\n",
1773                                 ZR_DEVNAME(zr));
1774                         res = -EINVAL;
1775                         goto gstat_unlock_and_return;
1776                 }
1777
1778                 decoder_s_routing(zr, &route);
1779
1780                 /* sleep 1 second */
1781                 ssleep(1);
1782
1783                 /* Get status of video decoder */
1784                 decoder_call(zr, video, querystd, &norm);
1785                 decoder_call(zr, video, g_input_status, &status);
1786
1787                 /* restore previous input and norm */
1788                 route.input = zr->card.input[zr->input].muxsel;
1789                 decoder_s_routing(zr, &route);
1790 gstat_unlock_and_return:
1791                 mutex_unlock(&zr->resource_lock);
1792
1793                 if (!res) {
1794                         bstat->signal =
1795                             (status & V4L2_IN_ST_NO_SIGNAL) ? 0 : 1;
1796                         if (norm & V4L2_STD_NTSC)
1797                                 bstat->norm = VIDEO_MODE_NTSC;
1798                         else if (norm & V4L2_STD_SECAM)
1799                                 bstat->norm = VIDEO_MODE_SECAM;
1800                         else
1801                                 bstat->norm = VIDEO_MODE_PAL;
1802
1803                         bstat->color =
1804                             (status & V4L2_IN_ST_NO_COLOR) ? 0 : 1;
1805                 }
1806
1807                 return res;
1808         }
1809
1810         default:
1811                 return -EINVAL;
1812         }
1813 }
1814
1815 static int zoran_vidiocgmbuf(struct file *file, void *__fh, struct video_mbuf *vmbuf)
1816 {
1817         struct zoran_fh *fh = __fh;
1818         struct zoran *zr = fh->zr;
1819         int i, res = 0;
1820
1821
1822         mutex_lock(&zr->resource_lock);
1823
1824         if (fh->buffers.allocated) {
1825                 dprintk(1,
1826                         KERN_ERR
1827                         "%s: VIDIOCGMBUF - buffers already allocated\n",
1828                         ZR_DEVNAME(zr));
1829                 res = -EINVAL;
1830                 goto v4l1reqbuf_unlock_and_return;
1831         }
1832
1833         /* The next mmap will map the V4L buffers */
1834         map_mode_raw(fh);
1835
1836         if (v4l_fbuffer_alloc(fh)) {
1837                 res = -ENOMEM;
1838                 goto v4l1reqbuf_unlock_and_return;
1839         }
1840
1841         vmbuf->size = fh->buffers.num_buffers * fh->buffers.buffer_size;
1842         vmbuf->frames = fh->buffers.num_buffers;
1843         for (i = 0; i < vmbuf->frames; i++)
1844                 vmbuf->offsets[i] = i * fh->buffers.buffer_size;
1845
1846 v4l1reqbuf_unlock_and_return:
1847         mutex_unlock(&zr->resource_lock);
1848
1849         return res;
1850 }
1851 #endif
1852
1853 static int zoran_querycap(struct file *file, void *__fh, struct v4l2_capability *cap)
1854 {
1855         struct zoran_fh *fh = __fh;
1856         struct zoran *zr = fh->zr;
1857
1858         memset(cap, 0, sizeof(*cap));
1859         strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
1860         strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
1861         snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
1862                  pci_name(zr->pci_dev));
1863         cap->version = KERNEL_VERSION(MAJOR_VERSION, MINOR_VERSION,
1864                            RELEASE_VERSION);
1865         cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE |
1866                             V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_VIDEO_OVERLAY;
1867         return 0;
1868 }
1869
1870 static int zoran_enum_fmt(struct zoran *zr, struct v4l2_fmtdesc *fmt, int flag)
1871 {
1872         int num = -1, i;
1873
1874         for (i = 0; i < NUM_FORMATS; i++) {
1875                 if (zoran_formats[i].flags & flag)
1876                         num++;
1877                 if (num == fmt->index)
1878                         break;
1879         }
1880         if (fmt->index < 0 /* late, but not too late */  || i == NUM_FORMATS)
1881                 return -EINVAL;
1882
1883         strncpy(fmt->description, zoran_formats[i].name, sizeof(fmt->description)-1);
1884         fmt->pixelformat = zoran_formats[i].fourcc;
1885         if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
1886                 fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
1887         return 0;
1888 }
1889
1890 static int zoran_enum_fmt_vid_cap(struct file *file, void *__fh,
1891                                             struct v4l2_fmtdesc *f)
1892 {
1893         struct zoran_fh *fh = __fh;
1894         struct zoran *zr = fh->zr;
1895
1896         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_CAPTURE);
1897 }
1898
1899 static int zoran_enum_fmt_vid_out(struct file *file, void *__fh,
1900                                             struct v4l2_fmtdesc *f)
1901 {
1902         struct zoran_fh *fh = __fh;
1903         struct zoran *zr = fh->zr;
1904
1905         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_PLAYBACK);
1906 }
1907
1908 static int zoran_enum_fmt_vid_overlay(struct file *file, void *__fh,
1909                                             struct v4l2_fmtdesc *f)
1910 {
1911         struct zoran_fh *fh = __fh;
1912         struct zoran *zr = fh->zr;
1913
1914         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_OVERLAY);
1915 }
1916
1917 static int zoran_g_fmt_vid_out(struct file *file, void *__fh,
1918                                         struct v4l2_format *fmt)
1919 {
1920         struct zoran_fh *fh = __fh;
1921         struct zoran *zr = fh->zr;
1922
1923         mutex_lock(&zr->resource_lock);
1924
1925         fmt->fmt.pix.width = fh->jpg_settings.img_width / fh->jpg_settings.HorDcm;
1926         fmt->fmt.pix.height = fh->jpg_settings.img_height * 2 /
1927                 (fh->jpg_settings.VerDcm * fh->jpg_settings.TmpDcm);
1928         fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1929         fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
1930         if (fh->jpg_settings.TmpDcm == 1)
1931                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1932                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1933         else
1934                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1935                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1936         fmt->fmt.pix.bytesperline = 0;
1937         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1938
1939         mutex_unlock(&zr->resource_lock);
1940         return 0;
1941 }
1942
1943 static int zoran_g_fmt_vid_cap(struct file *file, void *__fh,
1944                                         struct v4l2_format *fmt)
1945 {
1946         struct zoran_fh *fh = __fh;
1947         struct zoran *zr = fh->zr;
1948
1949         if (fh->map_mode != ZORAN_MAP_MODE_RAW)
1950                 return zoran_g_fmt_vid_out(file, fh, fmt);
1951
1952         mutex_lock(&zr->resource_lock);
1953         fmt->fmt.pix.width = fh->v4l_settings.width;
1954         fmt->fmt.pix.height = fh->v4l_settings.height;
1955         fmt->fmt.pix.sizeimage = fh->v4l_settings.bytesperline *
1956                                         fh->v4l_settings.height;
1957         fmt->fmt.pix.pixelformat = fh->v4l_settings.format->fourcc;
1958         fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
1959         fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
1960         if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
1961                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
1962         else
1963                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
1964         mutex_unlock(&zr->resource_lock);
1965         return 0;
1966 }
1967
1968 static int zoran_g_fmt_vid_overlay(struct file *file, void *__fh,
1969                                         struct v4l2_format *fmt)
1970 {
1971         struct zoran_fh *fh = __fh;
1972         struct zoran *zr = fh->zr;
1973
1974         mutex_lock(&zr->resource_lock);
1975
1976         fmt->fmt.win.w.left = fh->overlay_settings.x;
1977         fmt->fmt.win.w.top = fh->overlay_settings.y;
1978         fmt->fmt.win.w.width = fh->overlay_settings.width;
1979         fmt->fmt.win.w.height = fh->overlay_settings.height;
1980         if (fh->overlay_settings.width * 2 > BUZ_MAX_HEIGHT)
1981                 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
1982         else
1983                 fmt->fmt.win.field = V4L2_FIELD_TOP;
1984
1985         mutex_unlock(&zr->resource_lock);
1986         return 0;
1987 }
1988
1989 static int zoran_try_fmt_vid_overlay(struct file *file, void *__fh,
1990                                         struct v4l2_format *fmt)
1991 {
1992         struct zoran_fh *fh = __fh;
1993         struct zoran *zr = fh->zr;
1994
1995         mutex_lock(&zr->resource_lock);
1996
1997         if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
1998                 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
1999         if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
2000                 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
2001         if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
2002                 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
2003         if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
2004                 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
2005
2006         mutex_unlock(&zr->resource_lock);
2007         return 0;
2008 }
2009
2010 static int zoran_try_fmt_vid_out(struct file *file, void *__fh,
2011                                         struct v4l2_format *fmt)
2012 {
2013         struct zoran_fh *fh = __fh;
2014         struct zoran *zr = fh->zr;
2015         struct zoran_jpg_settings settings;
2016         int res = 0;
2017
2018         if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
2019                 return -EINVAL;
2020
2021         mutex_lock(&zr->resource_lock);
2022         settings = fh->jpg_settings;
2023
2024         /* we actually need to set 'real' parameters now */
2025         if ((fmt->fmt.pix.height * 2) > BUZ_MAX_HEIGHT)
2026                 settings.TmpDcm = 1;
2027         else
2028                 settings.TmpDcm = 2;
2029         settings.decimation = 0;
2030         if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
2031                 settings.VerDcm = 2;
2032         else
2033                 settings.VerDcm = 1;
2034         if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
2035                 settings.HorDcm = 4;
2036         else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
2037                 settings.HorDcm = 2;
2038         else
2039                 settings.HorDcm = 1;
2040         if (settings.TmpDcm == 1)
2041                 settings.field_per_buff = 2;
2042         else
2043                 settings.field_per_buff = 1;
2044
2045         if (settings.HorDcm > 1) {
2046                 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
2047                 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
2048         } else {
2049                 settings.img_x = 0;
2050                 settings.img_width = BUZ_MAX_WIDTH;
2051         }
2052
2053         /* check */
2054         res = zoran_check_jpg_settings(zr, &settings, 1);
2055         if (res)
2056                 goto tryfmt_unlock_and_return;
2057
2058         /* tell the user what we actually did */
2059         fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
2060         fmt->fmt.pix.height = settings.img_height * 2 /
2061                 (settings.TmpDcm * settings.VerDcm);
2062         if (settings.TmpDcm == 1)
2063                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
2064                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
2065         else
2066                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
2067                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
2068
2069         fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&settings);
2070         fmt->fmt.pix.bytesperline = 0;
2071         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
2072 tryfmt_unlock_and_return:
2073         mutex_unlock(&zr->resource_lock);
2074         return res;
2075 }
2076
2077 static int zoran_try_fmt_vid_cap(struct file *file, void *__fh,
2078                                         struct v4l2_format *fmt)
2079 {
2080         struct zoran_fh *fh = __fh;
2081         struct zoran *zr = fh->zr;
2082         int bpp;
2083         int i;
2084
2085         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
2086                 return zoran_try_fmt_vid_out(file, fh, fmt);
2087
2088         mutex_lock(&zr->resource_lock);
2089
2090         for (i = 0; i < NUM_FORMATS; i++)
2091                 if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat)
2092                         break;
2093
2094         if (i == NUM_FORMATS) {
2095                 mutex_unlock(&zr->resource_lock);
2096                 return -EINVAL;
2097         }
2098
2099         bpp = (zoran_formats[i].depth + 7) / 8;
2100         fmt->fmt.pix.width &= ~((bpp == 2) ? 1 : 3);
2101         if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
2102                 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
2103         if (fmt->fmt.pix.width < BUZ_MIN_WIDTH)
2104                 fmt->fmt.pix.width = BUZ_MIN_WIDTH;
2105         if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
2106                 fmt->fmt.pix.height = BUZ_MAX_HEIGHT;
2107         if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT)
2108                 fmt->fmt.pix.height = BUZ_MIN_HEIGHT;
2109         mutex_unlock(&zr->resource_lock);
2110
2111         return 0;
2112 }
2113
2114 static int zoran_s_fmt_vid_overlay(struct file *file, void *__fh,
2115                                         struct v4l2_format *fmt)
2116 {
2117         struct zoran_fh *fh = __fh;
2118         struct zoran *zr = fh->zr;
2119         int res;
2120
2121         dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
2122                         fmt->fmt.win.w.left, fmt->fmt.win.w.top,
2123                         fmt->fmt.win.w.width,
2124                         fmt->fmt.win.w.height,
2125                         fmt->fmt.win.clipcount,
2126                         fmt->fmt.win.bitmap);
2127         mutex_lock(&zr->resource_lock);
2128         res = setup_window(fh, fmt->fmt.win.w.left, fmt->fmt.win.w.top,
2129                            fmt->fmt.win.w.width, fmt->fmt.win.w.height,
2130                            (struct v4l2_clip __user *)fmt->fmt.win.clips,
2131                            fmt->fmt.win.clipcount, fmt->fmt.win.bitmap);
2132         mutex_unlock(&zr->resource_lock);
2133         return res;
2134 }
2135
2136 static int zoran_s_fmt_vid_out(struct file *file, void *__fh,
2137                                         struct v4l2_format *fmt)
2138 {
2139         struct zoran_fh *fh = __fh;
2140         struct zoran *zr = fh->zr;
2141         __le32 printformat = __cpu_to_le32(fmt->fmt.pix.pixelformat);
2142         struct zoran_jpg_settings settings;
2143         int res = 0;
2144
2145         dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
2146                         fmt->fmt.pix.width, fmt->fmt.pix.height,
2147                         fmt->fmt.pix.pixelformat,
2148                         (char *) &printformat);
2149         if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
2150                 return -EINVAL;
2151
2152         mutex_lock(&zr->resource_lock);
2153
2154         if (fh->buffers.allocated) {
2155                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2156                         ZR_DEVNAME(zr));
2157                 res = -EBUSY;
2158                 goto sfmtjpg_unlock_and_return;
2159         }
2160
2161         settings = fh->jpg_settings;
2162
2163         /* we actually need to set 'real' parameters now */
2164         if (fmt->fmt.pix.height * 2 > BUZ_MAX_HEIGHT)
2165                 settings.TmpDcm = 1;
2166         else
2167                 settings.TmpDcm = 2;
2168         settings.decimation = 0;
2169         if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
2170                 settings.VerDcm = 2;
2171         else
2172                 settings.VerDcm = 1;
2173         if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
2174                 settings.HorDcm = 4;
2175         else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
2176                 settings.HorDcm = 2;
2177         else
2178                 settings.HorDcm = 1;
2179         if (settings.TmpDcm == 1)
2180                 settings.field_per_buff = 2;
2181         else
2182                 settings.field_per_buff = 1;
2183
2184         if (settings.HorDcm > 1) {
2185                 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
2186                 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
2187         } else {
2188                 settings.img_x = 0;
2189                 settings.img_width = BUZ_MAX_WIDTH;
2190         }
2191
2192         /* check */
2193         res = zoran_check_jpg_settings(zr, &settings, 0);
2194         if (res)
2195                 goto sfmtjpg_unlock_and_return;
2196
2197         /* it's ok, so set them */
2198         fh->jpg_settings = settings;
2199
2200         map_mode_jpg(fh, fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
2201         fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
2202
2203         /* tell the user what we actually did */
2204         fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
2205         fmt->fmt.pix.height = settings.img_height * 2 /
2206                 (settings.TmpDcm * settings.VerDcm);
2207         if (settings.TmpDcm == 1)
2208                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
2209                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
2210         else
2211                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
2212                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
2213         fmt->fmt.pix.bytesperline = 0;
2214         fmt->fmt.pix.sizeimage = fh->buffers.buffer_size;
2215         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
2216
2217 sfmtjpg_unlock_and_return:
2218         mutex_unlock(&zr->resource_lock);
2219         return res;
2220 }
2221
2222 static int zoran_s_fmt_vid_cap(struct file *file, void *__fh,
2223                                         struct v4l2_format *fmt)
2224 {
2225         struct zoran_fh *fh = __fh;
2226         struct zoran *zr = fh->zr;
2227         int i;
2228         int res = 0;
2229
2230         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
2231                 return zoran_s_fmt_vid_out(file, fh, fmt);
2232
2233         for (i = 0; i < NUM_FORMATS; i++)
2234                 if (fmt->fmt.pix.pixelformat == zoran_formats[i].fourcc)
2235                         break;
2236         if (i == NUM_FORMATS) {
2237                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x\n",
2238                         ZR_DEVNAME(zr), fmt->fmt.pix.pixelformat);
2239                 return -EINVAL;
2240         }
2241
2242         mutex_lock(&zr->resource_lock);
2243
2244         if ((fh->map_mode != ZORAN_MAP_MODE_RAW && fh->buffers.allocated) ||
2245             fh->buffers.active != ZORAN_FREE) {
2246                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
2247                                 ZR_DEVNAME(zr));
2248                 res = -EBUSY;
2249                 goto sfmtv4l_unlock_and_return;
2250         }
2251         if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
2252                 fmt->fmt.pix.height = BUZ_MAX_HEIGHT;
2253         if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
2254                 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
2255
2256         map_mode_raw(fh);
2257
2258         res = zoran_v4l_set_format(fh, fmt->fmt.pix.width, fmt->fmt.pix.height,
2259                                    &zoran_formats[i]);
2260         if (res)
2261                 goto sfmtv4l_unlock_and_return;
2262
2263         /* tell the user the results/missing stuff */
2264         fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
2265         fmt->fmt.pix.sizeimage = fh->v4l_settings.height * fh->v4l_settings.bytesperline;
2266         fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
2267         if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
2268                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
2269         else
2270                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
2271
2272 sfmtv4l_unlock_and_return:
2273         mutex_unlock(&zr->resource_lock);
2274         return res;
2275 }
2276
2277 static int zoran_g_fbuf(struct file *file, void *__fh,
2278                 struct v4l2_framebuffer *fb)
2279 {
2280         struct zoran_fh *fh = __fh;
2281         struct zoran *zr = fh->zr;
2282
2283         memset(fb, 0, sizeof(*fb));
2284         mutex_lock(&zr->resource_lock);
2285         fb->base = zr->vbuf_base;
2286         fb->fmt.width = zr->vbuf_width;
2287         fb->fmt.height = zr->vbuf_height;
2288         if (zr->overlay_settings.format)
2289                 fb->fmt.pixelformat = fh->overlay_settings.format->fourcc;
2290         fb->fmt.bytesperline = zr->vbuf_bytesperline;
2291         mutex_unlock(&zr->resource_lock);
2292         fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
2293         fb->fmt.field = V4L2_FIELD_INTERLACED;
2294         fb->flags = V4L2_FBUF_FLAG_OVERLAY;
2295         fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
2296
2297         return 0;
2298 }
2299
2300 static int zoran_s_fbuf(struct file *file, void *__fh,
2301                 struct v4l2_framebuffer *fb)
2302 {
2303         struct zoran_fh *fh = __fh;
2304         struct zoran *zr = fh->zr;
2305         int i, res = 0;
2306         __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
2307
2308         for (i = 0; i < NUM_FORMATS; i++)
2309                 if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
2310                         break;
2311         if (i == NUM_FORMATS) {
2312                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
2313                         ZR_DEVNAME(zr), fb->fmt.pixelformat,
2314                         (char *)&printformat);
2315                 return -EINVAL;
2316         }
2317
2318         mutex_lock(&zr->resource_lock);
2319         res = setup_fbuffer(fh, fb->base, &zoran_formats[i], fb->fmt.width,
2320                             fb->fmt.height, fb->fmt.bytesperline);
2321         mutex_unlock(&zr->resource_lock);
2322
2323         return res;
2324 }
2325
2326 static int zoran_overlay(struct file *file, void *__fh, unsigned int on)
2327 {
2328         struct zoran_fh *fh = __fh;
2329         struct zoran *zr = fh->zr;
2330         int res;
2331
2332         mutex_lock(&zr->resource_lock);
2333         res = setup_overlay(fh, on);
2334         mutex_unlock(&zr->resource_lock);
2335
2336         return res;
2337 }
2338
2339 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type);
2340
2341 static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *req)
2342 {
2343         struct zoran_fh *fh = __fh;
2344         struct zoran *zr = fh->zr;
2345         int res = 0;
2346
2347         if (req->memory != V4L2_MEMORY_MMAP) {
2348                 dprintk(2,
2349                                 KERN_ERR
2350                                 "%s: only MEMORY_MMAP capture is supported, not %d\n",
2351                                 ZR_DEVNAME(zr), req->memory);
2352                 return -EINVAL;
2353         }
2354
2355         if (req->count == 0)
2356                 return zoran_streamoff(file, fh, req->type);
2357
2358         mutex_lock(&zr->resource_lock);
2359         if (fh->buffers.allocated) {
2360                 dprintk(2,
2361                                 KERN_ERR
2362                                 "%s: VIDIOC_REQBUFS - buffers already allocated\n",
2363                                 ZR_DEVNAME(zr));
2364                 res = -EBUSY;
2365                 goto v4l2reqbuf_unlock_and_return;
2366         }
2367
2368         if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
2369             req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2370                 /* control user input */
2371                 if (req->count < 2)
2372                         req->count = 2;
2373                 if (req->count > v4l_nbufs)
2374                         req->count = v4l_nbufs;
2375
2376                 /* The next mmap will map the V4L buffers */
2377                 map_mode_raw(fh);
2378                 fh->buffers.num_buffers = req->count;
2379
2380                 if (v4l_fbuffer_alloc(fh)) {
2381                         res = -ENOMEM;
2382                         goto v4l2reqbuf_unlock_and_return;
2383                 }
2384         } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
2385                    fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
2386                 /* we need to calculate size ourselves now */
2387                 if (req->count < 4)
2388                         req->count = 4;
2389                 if (req->count > jpg_nbufs)
2390                         req->count = jpg_nbufs;
2391
2392                 /* The next mmap will map the MJPEG buffers */
2393                 map_mode_jpg(fh, req->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
2394                 fh->buffers.num_buffers = req->count;
2395                 fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
2396
2397                 if (jpg_fbuffer_alloc(fh)) {
2398                         res = -ENOMEM;
2399                         goto v4l2reqbuf_unlock_and_return;
2400                 }
2401         } else {
2402                 dprintk(1,
2403                                 KERN_ERR
2404                                 "%s: VIDIOC_REQBUFS - unknown type %d\n",
2405                                 ZR_DEVNAME(zr), req->type);
2406                 res = -EINVAL;
2407                 goto v4l2reqbuf_unlock_and_return;
2408         }
2409 v4l2reqbuf_unlock_and_return:
2410         mutex_unlock(&zr->resource_lock);
2411
2412         return res;
2413 }
2414
2415 static int zoran_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2416 {
2417         struct zoran_fh *fh = __fh;
2418         struct zoran *zr = fh->zr;
2419         int res;
2420
2421         mutex_lock(&zr->resource_lock);
2422         res = zoran_v4l2_buffer_status(fh, buf, buf->index);
2423         mutex_unlock(&zr->resource_lock);
2424
2425         return res;
2426 }
2427
2428 static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2429 {
2430         struct zoran_fh *fh = __fh;
2431         struct zoran *zr = fh->zr;
2432         int res = 0, codec_mode, buf_type;
2433
2434         mutex_lock(&zr->resource_lock);
2435
2436         switch (fh->map_mode) {
2437         case ZORAN_MAP_MODE_RAW:
2438                 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2439                         dprintk(1, KERN_ERR
2440                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2441                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2442                         res = -EINVAL;
2443                         goto qbuf_unlock_and_return;
2444                 }
2445
2446                 res = zoran_v4l_queue_frame(fh, buf->index);
2447                 if (res)
2448                         goto qbuf_unlock_and_return;
2449                 if (!zr->v4l_memgrab_active && fh->buffers.active == ZORAN_LOCKED)
2450                         zr36057_set_memgrab(zr, 1);
2451                 break;
2452
2453         case ZORAN_MAP_MODE_JPG_REC:
2454         case ZORAN_MAP_MODE_JPG_PLAY:
2455                 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
2456                         buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2457                         codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
2458                 } else {
2459                         buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2460                         codec_mode = BUZ_MODE_MOTION_COMPRESS;
2461                 }
2462
2463                 if (buf->type != buf_type) {
2464                         dprintk(1, KERN_ERR
2465                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2466                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2467                         res = -EINVAL;
2468                         goto qbuf_unlock_and_return;
2469                 }
2470
2471                 res = zoran_jpg_queue_frame(fh, buf->index, codec_mode);
2472                 if (res != 0)
2473                         goto qbuf_unlock_and_return;
2474                 if (zr->codec_mode == BUZ_MODE_IDLE &&
2475                     fh->buffers.active == ZORAN_LOCKED)
2476                         zr36057_enable_jpg(zr, codec_mode);
2477
2478                 break;
2479
2480         default:
2481                 dprintk(1, KERN_ERR
2482                         "%s: VIDIOC_QBUF - unsupported type %d\n",
2483                         ZR_DEVNAME(zr), buf->type);
2484                 res = -EINVAL;
2485                 break;
2486         }
2487 qbuf_unlock_and_return:
2488         mutex_unlock(&zr->resource_lock);
2489
2490         return res;
2491 }
2492
2493 static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2494 {
2495         struct zoran_fh *fh = __fh;
2496         struct zoran *zr = fh->zr;
2497         int res = 0, buf_type, num = -1;        /* compiler borks here (?) */
2498
2499         mutex_lock(&zr->resource_lock);
2500
2501         switch (fh->map_mode) {
2502         case ZORAN_MAP_MODE_RAW:
2503                 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2504                         dprintk(1, KERN_ERR
2505                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2506                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2507                         res = -EINVAL;
2508                         goto dqbuf_unlock_and_return;
2509                 }
2510
2511                 num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
2512                 if (file->f_flags & O_NONBLOCK &&
2513                     zr->v4l_buffers.buffer[num].state != BUZ_STATE_DONE) {
2514                         res = -EAGAIN;
2515                         goto dqbuf_unlock_and_return;
2516                 }
2517                 res = v4l_sync(fh, num);
2518                 if (res)
2519                         goto dqbuf_unlock_and_return;
2520                 zr->v4l_sync_tail++;
2521                 res = zoran_v4l2_buffer_status(fh, buf, num);
2522                 break;
2523
2524         case ZORAN_MAP_MODE_JPG_REC:
2525         case ZORAN_MAP_MODE_JPG_PLAY:
2526         {
2527                 struct zoran_sync bs;
2528
2529                 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
2530                         buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2531                 else
2532                         buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2533
2534                 if (buf->type != buf_type) {
2535                         dprintk(1, KERN_ERR
2536                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2537                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2538                         res = -EINVAL;
2539                         goto dqbuf_unlock_and_return;
2540                 }
2541
2542                 num = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
2543
2544                 if (file->f_flags & O_NONBLOCK &&
2545                     zr->jpg_buffers.buffer[num].state != BUZ_STATE_DONE) {
2546                         res = -EAGAIN;
2547                         goto dqbuf_unlock_and_return;
2548                 }
2549                 res = jpg_sync(fh, &bs);
2550                 if (res)
2551                         goto dqbuf_unlock_and_return;
2552                 res = zoran_v4l2_buffer_status(fh, buf, bs.frame);
2553                 break;
2554         }
2555
2556         default:
2557                 dprintk(1, KERN_ERR
2558                         "%s: VIDIOC_DQBUF - unsupported type %d\n",
2559                         ZR_DEVNAME(zr), buf->type);
2560                 res = -EINVAL;
2561                 break;
2562         }
2563 dqbuf_unlock_and_return:
2564         mutex_unlock(&zr->resource_lock);
2565
2566         return res;
2567 }
2568
2569 static int zoran_streamon(struct file *file, void *__fh, enum v4l2_buf_type type)
2570 {
2571         struct zoran_fh *fh = __fh;
2572         struct zoran *zr = fh->zr;
2573         int res = 0;
2574
2575         mutex_lock(&zr->resource_lock);
2576
2577         switch (fh->map_mode) {
2578         case ZORAN_MAP_MODE_RAW:        /* raw capture */
2579                 if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
2580                     fh->buffers.active != ZORAN_ACTIVE) {
2581                         res = -EBUSY;
2582                         goto strmon_unlock_and_return;
2583                 }
2584
2585                 zr->v4l_buffers.active = fh->buffers.active = ZORAN_LOCKED;
2586                 zr->v4l_settings = fh->v4l_settings;
2587
2588                 zr->v4l_sync_tail = zr->v4l_pend_tail;
2589                 if (!zr->v4l_memgrab_active &&
2590                     zr->v4l_pend_head != zr->v4l_pend_tail) {
2591                         zr36057_set_memgrab(zr, 1);
2592                 }
2593                 break;
2594
2595         case ZORAN_MAP_MODE_JPG_REC:
2596         case ZORAN_MAP_MODE_JPG_PLAY:
2597                 /* what is the codec mode right now? */
2598                 if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
2599                     fh->buffers.active != ZORAN_ACTIVE) {
2600                         res = -EBUSY;
2601                         goto strmon_unlock_and_return;
2602                 }
2603
2604                 zr->jpg_buffers.active = fh->buffers.active = ZORAN_LOCKED;
2605
2606                 if (zr->jpg_que_head != zr->jpg_que_tail) {
2607                         /* Start the jpeg codec when the first frame is queued  */
2608                         jpeg_start(zr);
2609                 }
2610                 break;
2611
2612         default:
2613                 dprintk(1,
2614                         KERN_ERR
2615                         "%s: VIDIOC_STREAMON - invalid map mode %d\n",
2616                         ZR_DEVNAME(zr), fh->map_mode);
2617                 res = -EINVAL;
2618                 break;
2619         }
2620 strmon_unlock_and_return:
2621         mutex_unlock(&zr->resource_lock);
2622
2623         return res;
2624 }
2625
2626 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type)
2627 {
2628         struct zoran_fh *fh = __fh;
2629         struct zoran *zr = fh->zr;
2630         int i, res = 0;
2631         unsigned long flags;
2632
2633         mutex_lock(&zr->resource_lock);
2634
2635         switch (fh->map_mode) {
2636         case ZORAN_MAP_MODE_RAW:        /* raw capture */
2637                 if (fh->buffers.active == ZORAN_FREE &&
2638                     zr->v4l_buffers.active != ZORAN_FREE) {
2639                         res = -EPERM;   /* stay off other's settings! */
2640                         goto strmoff_unlock_and_return;
2641                 }
2642                 if (zr->v4l_buffers.active == ZORAN_FREE)
2643                         goto strmoff_unlock_and_return;
2644
2645                 spin_lock_irqsave(&zr->spinlock, flags);
2646                 /* unload capture */
2647                 if (zr->v4l_memgrab_active) {
2648
2649                         zr36057_set_memgrab(zr, 0);
2650                 }
2651
2652                 for (i = 0; i < fh->buffers.num_buffers; i++)
2653                         zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER;
2654                 fh->buffers = zr->v4l_buffers;
2655
2656                 zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
2657
2658                 zr->v4l_grab_seq = 0;
2659                 zr->v4l_pend_head = zr->v4l_pend_tail = 0;
2660                 zr->v4l_sync_tail = 0;
2661
2662                 spin_unlock_irqrestore(&zr->spinlock, flags);
2663
2664                 break;
2665
2666         case ZORAN_MAP_MODE_JPG_REC:
2667         case ZORAN_MAP_MODE_JPG_PLAY:
2668                 if (fh->buffers.active == ZORAN_FREE &&
2669                     zr->jpg_buffers.active != ZORAN_FREE) {
2670                         res = -EPERM;   /* stay off other's settings! */
2671                         goto strmoff_unlock_and_return;
2672                 }
2673                 if (zr->jpg_buffers.active == ZORAN_FREE)
2674                         goto strmoff_unlock_and_return;
2675
2676                 res = jpg_qbuf(fh, -1,
2677                              (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
2678                              BUZ_MODE_MOTION_COMPRESS :
2679                              BUZ_MODE_MOTION_DECOMPRESS);
2680                 if (res)
2681                         goto strmoff_unlock_and_return;
2682                 break;
2683         default:
2684                 dprintk(1, KERN_ERR
2685                         "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
2686                         ZR_DEVNAME(zr), fh->map_mode);
2687                 res = -EINVAL;
2688                 break;
2689         }
2690 strmoff_unlock_and_return:
2691         mutex_unlock(&zr->resource_lock);
2692
2693         return res;
2694 }
2695
2696 static int zoran_queryctrl(struct file *file, void *__fh,
2697                                         struct v4l2_queryctrl *ctrl)
2698 {
2699         struct zoran_fh *fh = __fh;
2700         struct zoran *zr = fh->zr;
2701
2702         /* we only support hue/saturation/contrast/brightness */
2703         if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2704             ctrl->id > V4L2_CID_HUE)
2705                 return -EINVAL;
2706
2707         decoder_call(zr, core, queryctrl, ctrl);
2708
2709         return 0;
2710 }
2711
2712 static int zoran_g_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl)
2713 {
2714         struct zoran_fh *fh = __fh;
2715         struct zoran *zr = fh->zr;
2716
2717         /* we only support hue/saturation/contrast/brightness */
2718         if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2719             ctrl->id > V4L2_CID_HUE)
2720                 return -EINVAL;
2721
2722         mutex_lock(&zr->resource_lock);
2723         decoder_call(zr, core, g_ctrl, ctrl);
2724         mutex_unlock(&zr->resource_lock);
2725
2726         return 0;
2727 }
2728
2729 static int zoran_s_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl)
2730 {
2731         struct zoran_fh *fh = __fh;
2732         struct zoran *zr = fh->zr;
2733
2734         /* we only support hue/saturation/contrast/brightness */
2735         if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2736             ctrl->id > V4L2_CID_HUE)
2737                 return -EINVAL;
2738
2739         mutex_lock(&zr->resource_lock);
2740         decoder_call(zr, core, s_ctrl, ctrl);
2741         mutex_unlock(&zr->resource_lock);
2742
2743         return 0;
2744 }
2745
2746 static int zoran_g_std(struct file *file, void *__fh, v4l2_std_id *std)
2747 {
2748         struct zoran_fh *fh = __fh;
2749         struct zoran *zr = fh->zr;
2750
2751         mutex_lock(&zr->resource_lock);
2752         *std = zr->norm;
2753         mutex_unlock(&zr->resource_lock);
2754         return 0;
2755 }
2756
2757 static int zoran_s_std(struct file *file, void *__fh, v4l2_std_id *std)
2758 {
2759         struct zoran_fh *fh = __fh;
2760         struct zoran *zr = fh->zr;
2761         int res = 0;
2762
2763         mutex_lock(&zr->resource_lock);
2764         res = zoran_set_norm(zr, *std);
2765         if (res)
2766                 goto sstd_unlock_and_return;
2767
2768         res = wait_grab_pending(zr);
2769 sstd_unlock_and_return:
2770         mutex_unlock(&zr->resource_lock);
2771         return res;
2772 }
2773
2774 static int zoran_enum_input(struct file *file, void *__fh,
2775                                  struct v4l2_input *inp)
2776 {
2777         struct zoran_fh *fh = __fh;
2778         struct zoran *zr = fh->zr;
2779
2780         if (inp->index < 0 || inp->index >= zr->card.inputs)
2781                 return -EINVAL;
2782         else {
2783                 int id = inp->index;
2784                 memset(inp, 0, sizeof(*inp));
2785                 inp->index = id;
2786         }
2787
2788         strncpy(inp->name, zr->card.input[inp->index].name,
2789                 sizeof(inp->name) - 1);
2790         inp->type = V4L2_INPUT_TYPE_CAMERA;
2791         inp->std = V4L2_STD_ALL;
2792
2793         /* Get status of video decoder */
2794         mutex_lock(&zr->resource_lock);
2795         decoder_call(zr, video, g_input_status, &inp->status);
2796         mutex_unlock(&zr->resource_lock);
2797         return 0;
2798 }
2799
2800 static int zoran_g_input(struct file *file, void *__fh, unsigned int *input)
2801 {
2802         struct zoran_fh *fh = __fh;
2803         struct zoran *zr = fh->zr;
2804
2805         mutex_lock(&zr->resource_lock);
2806         *input = zr->input;
2807         mutex_unlock(&zr->resource_lock);
2808
2809         return 0;
2810 }
2811
2812 static int zoran_s_input(struct file *file, void *__fh, unsigned int input)
2813 {
2814         struct zoran_fh *fh = __fh;
2815         struct zoran *zr = fh->zr;
2816         int res;
2817
2818         mutex_lock(&zr->resource_lock);
2819         res = zoran_set_input(zr, input);
2820         if (res)
2821                 goto sinput_unlock_and_return;
2822
2823         /* Make sure the changes come into effect */
2824         res = wait_grab_pending(zr);
2825 sinput_unlock_and_return:
2826         mutex_unlock(&zr->resource_lock);
2827         return res;
2828 }
2829
2830 static int zoran_enum_output(struct file *file, void *__fh,
2831                                   struct v4l2_output *outp)
2832 {
2833         if (outp->index != 0)
2834                 return -EINVAL;
2835
2836         memset(outp, 0, sizeof(*outp));
2837         outp->index = 0;
2838         outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
2839         strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
2840
2841         return 0;
2842 }
2843
2844 static int zoran_g_output(struct file *file, void *__fh, unsigned int *output)
2845 {
2846         *output = 0;
2847
2848         return 0;
2849 }
2850
2851 static int zoran_s_output(struct file *file, void *__fh, unsigned int output)
2852 {
2853         if (output != 0)
2854                 return -EINVAL;
2855
2856         return 0;
2857 }
2858
2859 /* cropping (sub-frame capture) */
2860 static int zoran_cropcap(struct file *file, void *__fh,
2861                                         struct v4l2_cropcap *cropcap)
2862 {
2863         struct zoran_fh *fh = __fh;
2864         struct zoran *zr = fh->zr;
2865         int type = cropcap->type, res = 0;
2866
2867         memset(cropcap, 0, sizeof(*cropcap));
2868         cropcap->type = type;
2869
2870         mutex_lock(&zr->resource_lock);
2871
2872         if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2873             (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2874              fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2875                 dprintk(1, KERN_ERR
2876                         "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
2877                         ZR_DEVNAME(zr));
2878                 res = -EINVAL;
2879                 goto cropcap_unlock_and_return;
2880         }
2881
2882         cropcap->bounds.top = cropcap->bounds.left = 0;
2883         cropcap->bounds.width = BUZ_MAX_WIDTH;
2884         cropcap->bounds.height = BUZ_MAX_HEIGHT;
2885         cropcap->defrect.top = cropcap->defrect.left = 0;
2886         cropcap->defrect.width = BUZ_MIN_WIDTH;
2887         cropcap->defrect.height = BUZ_MIN_HEIGHT;
2888 cropcap_unlock_and_return:
2889         mutex_unlock(&zr->resource_lock);
2890         return res;
2891 }
2892
2893 static int zoran_g_crop(struct file *file, void *__fh, struct v4l2_crop *crop)
2894 {
2895         struct zoran_fh *fh = __fh;
2896         struct zoran *zr = fh->zr;
2897         int type = crop->type, res = 0;
2898
2899         memset(crop, 0, sizeof(*crop));
2900         crop->type = type;
2901
2902         mutex_lock(&zr->resource_lock);
2903
2904         if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2905             (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2906              fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2907                 dprintk(1,
2908                         KERN_ERR
2909                         "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
2910                         ZR_DEVNAME(zr));
2911                 res = -EINVAL;
2912                 goto gcrop_unlock_and_return;
2913         }
2914
2915         crop->c.top = fh->jpg_settings.img_y;
2916         crop->c.left = fh->jpg_settings.img_x;
2917         crop->c.width = fh->jpg_settings.img_width;
2918         crop->c.height = fh->jpg_settings.img_height;
2919
2920 gcrop_unlock_and_return:
2921         mutex_unlock(&zr->resource_lock);
2922
2923         return res;
2924 }
2925
2926 static int zoran_s_crop(struct file *file, void *__fh, struct v4l2_crop *crop)
2927 {
2928         struct zoran_fh *fh = __fh;
2929         struct zoran *zr = fh->zr;
2930         int res = 0;
2931         struct zoran_jpg_settings settings;
2932
2933         settings = fh->jpg_settings;
2934
2935         mutex_lock(&zr->resource_lock);
2936
2937         if (fh->buffers.allocated) {
2938                 dprintk(1, KERN_ERR
2939                         "%s: VIDIOC_S_CROP - cannot change settings while active\n",
2940                         ZR_DEVNAME(zr));
2941                 res = -EBUSY;
2942                 goto scrop_unlock_and_return;
2943         }
2944
2945         if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2946             (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2947              fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2948                 dprintk(1, KERN_ERR
2949                         "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
2950                         ZR_DEVNAME(zr));
2951                 res = -EINVAL;
2952                 goto scrop_unlock_and_return;
2953         }
2954
2955         /* move into a form that we understand */
2956         settings.img_x = crop->c.left;
2957         settings.img_y = crop->c.top;
2958         settings.img_width = crop->c.width;
2959         settings.img_height = crop->c.height;
2960
2961         /* check validity */
2962         res = zoran_check_jpg_settings(zr, &settings, 0);
2963         if (res)
2964                 goto scrop_unlock_and_return;
2965
2966         /* accept */
2967         fh->jpg_settings = settings;
2968
2969 scrop_unlock_and_return:
2970         mutex_unlock(&zr->resource_lock);
2971         return res;
2972 }
2973
2974 static int zoran_g_jpegcomp(struct file *file, void *__fh,
2975                                         struct v4l2_jpegcompression *params)
2976 {
2977         struct zoran_fh *fh = __fh;
2978         struct zoran *zr = fh->zr;
2979         memset(params, 0, sizeof(*params));
2980
2981         mutex_lock(&zr->resource_lock);
2982
2983         params->quality = fh->jpg_settings.jpg_comp.quality;
2984         params->APPn = fh->jpg_settings.jpg_comp.APPn;
2985         memcpy(params->APP_data,
2986                fh->jpg_settings.jpg_comp.APP_data,
2987                fh->jpg_settings.jpg_comp.APP_len);
2988         params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2989         memcpy(params->COM_data,
2990                fh->jpg_settings.jpg_comp.COM_data,
2991                fh->jpg_settings.jpg_comp.COM_len);
2992         params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
2993         params->jpeg_markers =
2994             fh->jpg_settings.jpg_comp.jpeg_markers;
2995
2996         mutex_unlock(&zr->resource_lock);
2997
2998         return 0;
2999 }
3000
3001 static int zoran_s_jpegcomp(struct file *file, void *__fh,
3002                                         struct v4l2_jpegcompression *params)
3003 {
3004         struct zoran_fh *fh = __fh;
3005         struct zoran *zr = fh->zr;
3006         int res = 0;
3007         struct zoran_jpg_settings settings;
3008
3009         settings = fh->jpg_settings;
3010
3011         settings.jpg_comp = *params;
3012
3013         mutex_lock(&zr->resource_lock);
3014
3015         if (fh->buffers.active != ZORAN_FREE) {
3016                 dprintk(1, KERN_WARNING
3017                         "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
3018                         ZR_DEVNAME(zr));
3019                 res = -EBUSY;
3020                 goto sjpegc_unlock_and_return;
3021         }
3022
3023         res = zoran_check_jpg_settings(zr, &settings, 0);
3024         if (res)
3025                 goto sjpegc_unlock_and_return;
3026         if (!fh->buffers.allocated)
3027                 fh->buffers.buffer_size =
3028                         zoran_v4l2_calc_bufsize(&fh->jpg_settings);
3029         fh->jpg_settings.jpg_comp = *params = settings.jpg_comp;
3030 sjpegc_unlock_and_return:
3031         mutex_unlock(&zr->resource_lock);
3032
3033         return res;
3034 }
3035
3036 static unsigned int
3037 zoran_poll (struct file *file,
3038             poll_table  *wait)
3039 {
3040         struct zoran_fh *fh = file->private_data;
3041         struct zoran *zr = fh->zr;
3042         int res = 0, frame;
3043         unsigned long flags;
3044
3045         /* we should check whether buffers are ready to be synced on
3046          * (w/o waits - O_NONBLOCK) here
3047          * if ready for read (sync), return POLLIN|POLLRDNORM,
3048          * if ready for write (sync), return POLLOUT|POLLWRNORM,
3049          * if error, return POLLERR,
3050          * if no buffers queued or so, return POLLNVAL
3051          */
3052
3053         mutex_lock(&zr->resource_lock);
3054
3055         switch (fh->map_mode) {
3056         case ZORAN_MAP_MODE_RAW:
3057                 poll_wait(file, &zr->v4l_capq, wait);
3058                 frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
3059
3060                 spin_lock_irqsave(&zr->spinlock, flags);
3061                 dprintk(3,
3062                         KERN_DEBUG
3063                         "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
3064                         ZR_DEVNAME(zr), __func__,
3065                         "FAL"[fh->buffers.active], zr->v4l_sync_tail,
3066                         "UPMD"[zr->v4l_buffers.buffer[frame].state],
3067                         zr->v4l_pend_tail, zr->v4l_pend_head);
3068                 /* Process is the one capturing? */
3069                 if (fh->buffers.active != ZORAN_FREE &&
3070                     /* Buffer ready to DQBUF? */
3071                     zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
3072                         res = POLLIN | POLLRDNORM;
3073                 spin_unlock_irqrestore(&zr->spinlock, flags);
3074
3075                 break;
3076
3077         case ZORAN_MAP_MODE_JPG_REC:
3078         case ZORAN_MAP_MODE_JPG_PLAY:
3079                 poll_wait(file, &zr->jpg_capq, wait);
3080                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
3081
3082                 spin_lock_irqsave(&zr->spinlock, flags);
3083                 dprintk(3,
3084                         KERN_DEBUG
3085                         "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
3086                         ZR_DEVNAME(zr), __func__,
3087                         "FAL"[fh->buffers.active], zr->jpg_que_tail,
3088                         "UPMD"[zr->jpg_buffers.buffer[frame].state],
3089                         zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
3090                 if (fh->buffers.active != ZORAN_FREE &&
3091                     zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
3092                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
3093                                 res = POLLIN | POLLRDNORM;
3094                         else
3095                                 res = POLLOUT | POLLWRNORM;
3096                 }
3097                 spin_unlock_irqrestore(&zr->spinlock, flags);
3098
3099                 break;
3100
3101         default:
3102                 dprintk(1,
3103                         KERN_ERR
3104                         "%s: %s - internal error, unknown map_mode=%d\n",
3105                         ZR_DEVNAME(zr), __func__, fh->map_mode);
3106                 res = POLLNVAL;
3107         }
3108
3109         mutex_unlock(&zr->resource_lock);
3110
3111         return res;
3112 }
3113
3114
3115 /*
3116  * This maps the buffers to user space.
3117  *
3118  * Depending on the state of fh->map_mode
3119  * the V4L or the MJPEG buffers are mapped
3120  * per buffer or all together
3121  *
3122  * Note that we need to connect to some
3123  * unmap signal event to unmap the de-allocate
3124  * the buffer accordingly (zoran_vm_close())
3125  */
3126
3127 static void
3128 zoran_vm_open (struct vm_area_struct *vma)
3129 {
3130         struct zoran_mapping *map = vma->vm_private_data;
3131
3132         map->count++;
3133 }
3134
3135 static void
3136 zoran_vm_close (struct vm_area_struct *vma)
3137 {
3138         struct zoran_mapping *map = vma->vm_private_data;
3139         struct zoran_fh *fh = map->file->private_data;
3140         struct zoran *zr = fh->zr;
3141         int i;
3142
3143         if (--map->count > 0)
3144                 return;
3145
3146         dprintk(3, KERN_INFO "%s: %s - munmap(%s)\n", ZR_DEVNAME(zr),
3147                 __func__, mode_name(fh->map_mode));
3148
3149         for (i = 0; i < fh->buffers.num_buffers; i++) {
3150                 if (fh->buffers.buffer[i].map == map)
3151                         fh->buffers.buffer[i].map = NULL;
3152         }
3153         kfree(map);
3154
3155         /* Any buffers still mapped? */
3156         for (i = 0; i < fh->buffers.num_buffers; i++)
3157                 if (fh->buffers.buffer[i].map)
3158                         return;
3159
3160         dprintk(3, KERN_INFO "%s: %s - free %s buffers\n", ZR_DEVNAME(zr),
3161                 __func__, mode_name(fh->map_mode));
3162
3163         mutex_lock(&zr->resource_lock);
3164
3165         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
3166                 if (fh->buffers.active != ZORAN_FREE) {
3167                         unsigned long flags;
3168
3169                         spin_lock_irqsave(&zr->spinlock, flags);
3170                         zr36057_set_memgrab(zr, 0);
3171                         zr->v4l_buffers.allocated = 0;
3172                         zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
3173                         spin_unlock_irqrestore(&zr->spinlock, flags);
3174                 }
3175                 v4l_fbuffer_free(fh);
3176         } else {
3177                 if (fh->buffers.active != ZORAN_FREE) {
3178                         jpg_qbuf(fh, -1, zr->codec_mode);
3179                         zr->jpg_buffers.allocated = 0;
3180                         zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
3181                 }
3182                 jpg_fbuffer_free(fh);
3183         }
3184
3185         mutex_unlock(&zr->resource_lock);
3186 }
3187
3188 static struct vm_operations_struct zoran_vm_ops = {
3189         .open = zoran_vm_open,
3190         .close = zoran_vm_close,
3191 };
3192
3193 static int
3194 zoran_mmap (struct file           *file,
3195             struct vm_area_struct *vma)
3196 {
3197         struct zoran_fh *fh = file->private_data;
3198         struct zoran *zr = fh->zr;
3199         unsigned long size = (vma->vm_end - vma->vm_start);
3200         unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
3201         int i, j;
3202         unsigned long page, start = vma->vm_start, todo, pos, fraglen;
3203         int first, last;
3204         struct zoran_mapping *map;
3205         int res = 0;
3206
3207         dprintk(3,
3208                 KERN_INFO "%s: %s(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
3209                 ZR_DEVNAME(zr), __func__,
3210                 mode_name(fh->map_mode), vma->vm_start, vma->vm_end, size);
3211
3212         if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
3213             !(vma->vm_flags & VM_WRITE)) {
3214                 dprintk(1,
3215                         KERN_ERR
3216                         "%s: %s - no MAP_SHARED/PROT_{READ,WRITE} given\n",
3217                         ZR_DEVNAME(zr), __func__);
3218                 return -EINVAL;
3219         }
3220
3221         mutex_lock(&zr->resource_lock);
3222
3223         if (!fh->buffers.allocated) {
3224                 dprintk(1,
3225                         KERN_ERR
3226                         "%s: %s(%s) - buffers not yet allocated\n",
3227                         ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode));
3228                 res = -ENOMEM;
3229                 goto mmap_unlock_and_return;
3230         }
3231
3232         first = offset / fh->buffers.buffer_size;
3233         last = first - 1 + size / fh->buffers.buffer_size;
3234         if (offset % fh->buffers.buffer_size != 0 ||
3235             size % fh->buffers.buffer_size != 0 || first < 0 ||
3236             last < 0 || first >= fh->buffers.num_buffers ||
3237             last >= fh->buffers.buffer_size) {
3238                 dprintk(1,
3239                         KERN_ERR
3240                         "%s: %s(%s) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
3241                         ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), offset, size,
3242                         fh->buffers.buffer_size,
3243                         fh->buffers.num_buffers);
3244                 res = -EINVAL;
3245                 goto mmap_unlock_and_return;
3246         }
3247
3248         /* Check if any buffers are already mapped */
3249         for (i = first; i <= last; i++) {
3250                 if (fh->buffers.buffer[i].map) {
3251                         dprintk(1,
3252                                 KERN_ERR
3253                                 "%s: %s(%s) - buffer %d already mapped\n",
3254                                 ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), i);
3255                         res = -EBUSY;
3256                         goto mmap_unlock_and_return;
3257                 }
3258         }
3259
3260         /* map these buffers */
3261         map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
3262         if (!map) {
3263                 res = -ENOMEM;
3264                 goto mmap_unlock_and_return;
3265         }
3266         map->file = file;
3267         map->count = 1;
3268
3269         vma->vm_ops = &zoran_vm_ops;
3270         vma->vm_flags |= VM_DONTEXPAND;
3271         vma->vm_private_data = map;
3272
3273         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
3274                 for (i = first; i <= last; i++) {
3275                         todo = size;
3276                         if (todo > fh->buffers.buffer_size)
3277                                 todo = fh->buffers.buffer_size;
3278                         page = fh->buffers.buffer[i].v4l.fbuffer_phys;
3279                         if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
3280                                                         todo, PAGE_SHARED)) {
3281                                 dprintk(1,
3282                                         KERN_ERR
3283                                         "%s: %s(V4L) - remap_pfn_range failed\n",
3284                                         ZR_DEVNAME(zr), __func__);
3285                                 res = -EAGAIN;
3286                                 goto mmap_unlock_and_return;
3287                         }
3288                         size -= todo;
3289                         start += todo;
3290                         fh->buffers.buffer[i].map = map;
3291                         if (size == 0)
3292                                 break;
3293                 }
3294         } else {
3295                 for (i = first; i <= last; i++) {
3296                         for (j = 0;
3297                              j < fh->buffers.buffer_size / PAGE_SIZE;
3298                              j++) {
3299                                 fraglen =
3300                                     (le32_to_cpu(fh->buffers.buffer[i].jpg.
3301                                      frag_tab[2 * j + 1]) & ~1) << 1;
3302                                 todo = size;
3303                                 if (todo > fraglen)
3304                                         todo = fraglen;
3305                                 pos =
3306                                     le32_to_cpu(fh->buffers.
3307                                     buffer[i].jpg.frag_tab[2 * j]);
3308                                 /* should just be pos on i386 */
3309                                 page = virt_to_phys(bus_to_virt(pos))
3310                                                                 >> PAGE_SHIFT;
3311                                 if (remap_pfn_range(vma, start, page,
3312                                                         todo, PAGE_SHARED)) {
3313                                         dprintk(1,
3314                                                 KERN_ERR
3315                                                 "%s: %s(V4L) - remap_pfn_range failed\n",
3316                                                 ZR_DEVNAME(zr), __func__);
3317                                         res = -EAGAIN;
3318                                         goto mmap_unlock_and_return;
3319                                 }
3320                                 size -= todo;
3321                                 start += todo;
3322                                 if (size == 0)
3323                                         break;
3324                                 if (le32_to_cpu(fh->buffers.buffer[i].jpg.
3325                                     frag_tab[2 * j + 1]) & 1)
3326                                         break;  /* was last fragment */
3327                         }
3328                         fh->buffers.buffer[i].map = map;
3329                         if (size == 0)
3330                                 break;
3331
3332                 }
3333         }
3334
3335 mmap_unlock_and_return:
3336         mutex_unlock(&zr->resource_lock);
3337
3338         return 0;
3339 }
3340
3341 static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
3342         .vidioc_querycap                    = zoran_querycap,
3343         .vidioc_cropcap                     = zoran_cropcap,
3344         .vidioc_s_crop                      = zoran_s_crop,
3345         .vidioc_g_crop                      = zoran_g_crop,
3346         .vidioc_enum_input                  = zoran_enum_input,
3347         .vidioc_g_input                     = zoran_g_input,
3348         .vidioc_s_input                     = zoran_s_input,
3349         .vidioc_enum_output                 = zoran_enum_output,
3350         .vidioc_g_output                    = zoran_g_output,
3351         .vidioc_s_output                    = zoran_s_output,
3352         .vidioc_g_fbuf                      = zoran_g_fbuf,
3353         .vidioc_s_fbuf                      = zoran_s_fbuf,
3354         .vidioc_g_std                       = zoran_g_std,
3355         .vidioc_s_std                       = zoran_s_std,
3356         .vidioc_g_jpegcomp                  = zoran_g_jpegcomp,
3357         .vidioc_s_jpegcomp                  = zoran_s_jpegcomp,
3358         .vidioc_overlay                     = zoran_overlay,
3359         .vidioc_reqbufs                     = zoran_reqbufs,
3360         .vidioc_querybuf                    = zoran_querybuf,
3361         .vidioc_qbuf                        = zoran_qbuf,
3362         .vidioc_dqbuf                       = zoran_dqbuf,
3363         .vidioc_streamon                    = zoran_streamon,
3364         .vidioc_streamoff                   = zoran_streamoff,
3365         .vidioc_enum_fmt_vid_cap            = zoran_enum_fmt_vid_cap,
3366         .vidioc_enum_fmt_vid_out            = zoran_enum_fmt_vid_out,
3367         .vidioc_enum_fmt_vid_overlay        = zoran_enum_fmt_vid_overlay,
3368         .vidioc_g_fmt_vid_cap               = zoran_g_fmt_vid_cap,
3369         .vidioc_g_fmt_vid_out               = zoran_g_fmt_vid_out,
3370         .vidioc_g_fmt_vid_overlay           = zoran_g_fmt_vid_overlay,
3371         .vidioc_s_fmt_vid_cap               = zoran_s_fmt_vid_cap,
3372         .vidioc_s_fmt_vid_out               = zoran_s_fmt_vid_out,
3373         .vidioc_s_fmt_vid_overlay           = zoran_s_fmt_vid_overlay,
3374         .vidioc_try_fmt_vid_cap             = zoran_try_fmt_vid_cap,
3375         .vidioc_try_fmt_vid_out             = zoran_try_fmt_vid_out,
3376         .vidioc_try_fmt_vid_overlay         = zoran_try_fmt_vid_overlay,
3377         .vidioc_queryctrl                   = zoran_queryctrl,
3378         .vidioc_s_ctrl                      = zoran_s_ctrl,
3379         .vidioc_g_ctrl                      = zoran_g_ctrl,
3380 #ifdef CONFIG_VIDEO_V4L1_COMPAT
3381         .vidioc_default                     = zoran_default,
3382         .vidiocgmbuf                        = zoran_vidiocgmbuf,
3383 #endif
3384 };
3385
3386 static const struct v4l2_file_operations zoran_fops = {
3387         .owner = THIS_MODULE,
3388         .open = zoran_open,
3389         .release = zoran_close,
3390         .ioctl = video_ioctl2,
3391         .read = zoran_read,
3392         .write = zoran_write,
3393         .mmap = zoran_mmap,
3394         .poll = zoran_poll,
3395 };
3396
3397 struct video_device zoran_template __devinitdata = {
3398         .name = ZORAN_NAME,
3399         .fops = &zoran_fops,
3400         .ioctl_ops = &zoran_ioctl_ops,
3401         .release = &zoran_vdev_release,
3402         .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
3403         .minor = -1
3404 };
3405