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/init.h>
  48 #include <linux/module.h>
  49 #include <linux/delay.h>
  50 #include <linux/slab.h>
  51 #include <linux/pci.h>
  52 #include <linux/vmalloc.h>
  53 #include <linux/wait.h>
  54
  55 #include <linux/interrupt.h>
  56 #include <linux/i2c.h>
  57 #include <linux/i2c-algo-bit.h>
  58
  59 #include <linux/spinlock.h>
  60
  61 #include <linux/videodev2.h>
  62 #include <media/v4l2-common.h>
  63 #include <media/v4l2-ioctl.h>
  64 #include "videocodec.h"
  65
  66 #include <asm/byteorder.h>
  67 #include <asm/io.h>
  68 #include <asm/uaccess.h>
  69 #include <linux/proc_fs.h>
  70
  71 #include <linux/mutex.h>
  72 #include "zoran.h"
  73 #include "zoran_device.h"
  74 #include "zoran_card.h"
  75
  76
  77 const struct zoran_format zoran_formats[] = {
  78         {
  79                 .name = "15-bit RGB LE",
  80                 .fourcc = V4L2_PIX_FMT_RGB555,
  81                 .colorspace = V4L2_COLORSPACE_SRGB,
  82                 .depth = 15,
  83                 .flags = ZORAN_FORMAT_CAPTURE |
  84                          ZORAN_FORMAT_OVERLAY,
  85                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif|
  86                            ZR36057_VFESPFR_LittleEndian,
  87         }, {
  88                 .name = "15-bit RGB BE",
  89                 .fourcc = V4L2_PIX_FMT_RGB555X,
  90                 .colorspace = V4L2_COLORSPACE_SRGB,
  91                 .depth = 15,
  92                 .flags = ZORAN_FORMAT_CAPTURE |
  93                          ZORAN_FORMAT_OVERLAY,
  94                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif,
  95         }, {
  96                 .name = "16-bit RGB LE",
  97                 .fourcc = V4L2_PIX_FMT_RGB565,
  98                 .colorspace = V4L2_COLORSPACE_SRGB,
  99                 .depth = 16,
 100                 .flags = ZORAN_FORMAT_CAPTURE |
 101                          ZORAN_FORMAT_OVERLAY,
 102                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif|
 103                            ZR36057_VFESPFR_LittleEndian,
 104         }, {
 105                 .name = "16-bit RGB BE",
 106                 .fourcc = V4L2_PIX_FMT_RGB565X,
 107                 .colorspace = V4L2_COLORSPACE_SRGB,
 108                 .depth = 16,
 109                 .flags = ZORAN_FORMAT_CAPTURE |
 110                          ZORAN_FORMAT_OVERLAY,
 111                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif,
 112         }, {
 113                 .name = "24-bit RGB",
 114                 .fourcc = V4L2_PIX_FMT_BGR24,
 115                 .colorspace = V4L2_COLORSPACE_SRGB,
 116                 .depth = 24,
 117                 .flags = ZORAN_FORMAT_CAPTURE |
 118                          ZORAN_FORMAT_OVERLAY,
 119                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24,
 120         }, {
 121                 .name = "32-bit RGB LE",
 122                 .fourcc = V4L2_PIX_FMT_BGR32,
 123                 .colorspace = V4L2_COLORSPACE_SRGB,
 124                 .depth = 32,
 125                 .flags = ZORAN_FORMAT_CAPTURE |
 126                          ZORAN_FORMAT_OVERLAY,
 127                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian,
 128         }, {
 129                 .name = "32-bit RGB BE",
 130                 .fourcc = V4L2_PIX_FMT_RGB32,
 131                 .colorspace = V4L2_COLORSPACE_SRGB,
 132                 .depth = 32,
 133                 .flags = ZORAN_FORMAT_CAPTURE |
 134                          ZORAN_FORMAT_OVERLAY,
 135                 .vfespfr = ZR36057_VFESPFR_RGB888,
 136         }, {
 137                 .name = "4:2:2, packed, YUYV",
 138                 .fourcc = V4L2_PIX_FMT_YUYV,
 139                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 140                 .depth = 16,
 141                 .flags = ZORAN_FORMAT_CAPTURE |
 142                          ZORAN_FORMAT_OVERLAY,
 143                 .vfespfr = ZR36057_VFESPFR_YUV422,
 144         }, {
 145                 .name = "4:2:2, packed, UYVY",
 146                 .fourcc = V4L2_PIX_FMT_UYVY,
 147                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 148                 .depth = 16,
 149                 .flags = ZORAN_FORMAT_CAPTURE |
 150                          ZORAN_FORMAT_OVERLAY,
 151                 .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian,
 152         }, {
 153                 .name = "Hardware-encoded Motion-JPEG",
 154                 .fourcc = V4L2_PIX_FMT_MJPEG,
 155                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 156                 .depth = 0,
 157                 .flags = ZORAN_FORMAT_CAPTURE |
 158                          ZORAN_FORMAT_PLAYBACK |
 159                          ZORAN_FORMAT_COMPRESSED,
 160         }
 161 };
 162 #define NUM_FORMATS ARRAY_SIZE(zoran_formats)
 163
 164         /* small helper function for calculating buffersizes for v4l2
 165          * we calculate the nearest higher power-of-two, which
 166          * will be the recommended buffersize */
 167 static __u32
 168 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
 169 {
 170         __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
 171         __u32 num = (1024 * 512) / (div);
 172         __u32 result = 2;
 173
 174         num--;
 175         while (num) {
 176                 num >>= 1;
 177                 result <<= 1;
 178         }
 179
 180         if (result > jpg_bufsize)
 181                 return jpg_bufsize;
 182         if (result < 8192)
 183                 return 8192;
 184         return result;
 185 }
 186
 187 /* forward references */
 188 static void v4l_fbuffer_free(struct zoran_fh *fh);
 189 static void jpg_fbuffer_free(struct zoran_fh *fh);
 190
 191 /* Set mapping mode */
 192 static void map_mode_raw(struct zoran_fh *fh)
 193 {
 194         fh->map_mode = ZORAN_MAP_MODE_RAW;
 195         fh->buffers.buffer_size = v4l_bufsize;
 196         fh->buffers.num_buffers = v4l_nbufs;
 197 }
 198 static void map_mode_jpg(struct zoran_fh *fh, int play)
 199 {
 200         fh->map_mode = play ? ZORAN_MAP_MODE_JPG_PLAY : ZORAN_MAP_MODE_JPG_REC;
 201         fh->buffers.buffer_size = jpg_bufsize;
 202         fh->buffers.num_buffers = jpg_nbufs;
 203 }
 204 static inline const char *mode_name(enum zoran_map_mode mode)
 205 {
 206         return mode == ZORAN_MAP_MODE_RAW ? "V4L" : "JPG";
 207 }
 208
 209 /*
 210  *   Allocate the V4L grab buffers
 211  *
 212  *   These have to be pysically contiguous.
 213  */
 214
 215 static int v4l_fbuffer_alloc(struct zoran_fh *fh)
 216 {
 217         struct zoran *zr = fh->zr;
 218         int i, off;
 219         unsigned char *mem;
 220
 221         for (i = 0; i < fh->buffers.num_buffers; i++) {
 222                 if (fh->buffers.buffer[i].v4l.fbuffer)
 223                         dprintk(2,
 224                                 KERN_WARNING
 225                                 "%s: %s - buffer %d already allocated!?\n",
 226                                 ZR_DEVNAME(zr), __func__, i);
 227
 228                 //udelay(20);
 229                 mem = kmalloc(fh->buffers.buffer_size,
 230                               GFP_KERNEL | __GFP_NOWARN);
 231                 if (!mem) {
 232                         dprintk(1,
 233                                 KERN_ERR
 234                                 "%s: %s - kmalloc for V4L buf %d failed\n",
 235                                 ZR_DEVNAME(zr), __func__, i);
 236                         v4l_fbuffer_free(fh);
 237                         return -ENOBUFS;
 238                 }
 239                 fh->buffers.buffer[i].v4l.fbuffer = mem;
 240                 fh->buffers.buffer[i].v4l.fbuffer_phys = virt_to_phys(mem);
 241                 fh->buffers.buffer[i].v4l.fbuffer_bus = virt_to_bus(mem);
 242                 for (off = 0; off < fh->buffers.buffer_size;
 243                      off += PAGE_SIZE)
 244                         SetPageReserved(virt_to_page(mem + off));
 245                 dprintk(4,
 246                         KERN_INFO
 247                         "%s: %s - V4L frame %d mem 0x%lx (bus: 0x%llx)\n",
 248                         ZR_DEVNAME(zr), __func__, i, (unsigned long) mem,
 249                         (unsigned long long)virt_to_bus(mem));
 250         }
 251
 252         fh->buffers.allocated = 1;
 253
 254         return 0;
 255 }
 256
 257 /* free the V4L grab buffers */
 258 static void v4l_fbuffer_free(struct zoran_fh *fh)
 259 {
 260         struct zoran *zr = fh->zr;
 261         int i, off;
 262         unsigned char *mem;
 263
 264         dprintk(4, KERN_INFO "%s: %s\n", ZR_DEVNAME(zr), __func__);
 265
 266         for (i = 0; i < fh->buffers.num_buffers; i++) {
 267                 if (!fh->buffers.buffer[i].v4l.fbuffer)
 268                         continue;
 269
 270                 mem = fh->buffers.buffer[i].v4l.fbuffer;
 271                 for (off = 0; off < fh->buffers.buffer_size;
 272                      off += PAGE_SIZE)
 273                         ClearPageReserved(virt_to_page(mem + off));
 274                 kfree(fh->buffers.buffer[i].v4l.fbuffer);
 275                 fh->buffers.buffer[i].v4l.fbuffer = NULL;
 276         }
 277
 278         fh->buffers.allocated = 0;
 279 }
 280
 281 /*
 282  *   Allocate the MJPEG grab buffers.
 283  *
 284  *   If a Natoma chipset is present and this is a revision 1 zr36057,
 285  *   each MJPEG buffer needs to be physically contiguous.
 286  *   (RJ: This statement is from Dave Perks' original driver,
 287  *   I could never check it because I have a zr36067)
 288  *
 289  *   RJ: The contents grab buffers needs never be accessed in the driver.
 290  *       Therefore there is no need to allocate them with vmalloc in order
 291  *       to get a contiguous virtual memory space.
 292  *       I don't understand why many other drivers first allocate them with
 293  *       vmalloc (which uses internally also get_zeroed_page, but delivers you
 294  *       virtual addresses) and then again have to make a lot of efforts
 295  *       to get the physical address.
 296  *
 297  *   Ben Capper:
 298  *       On big-endian architectures (such as ppc) some extra steps
 299  *       are needed. When reading and writing to the stat_com array
 300  *       and fragment buffers, the device expects to see little-
 301  *       endian values. The use of cpu_to_le32() and le32_to_cpu()
 302  *       in this function (and one or two others in zoran_device.c)
 303  *       ensure that these values are always stored in little-endian
 304  *       form, regardless of architecture. The zr36057 does Very Bad
 305  *       Things on big endian architectures if the stat_com array
 306  *       and fragment buffers are not little-endian.
 307  */
 308
 309 static int jpg_fbuffer_alloc(struct zoran_fh *fh)
 310 {
 311         struct zoran *zr = fh->zr;
 312         int i, j, off;
 313         u8 *mem;
 314
 315         for (i = 0; i < fh->buffers.num_buffers; i++) {
 316                 if (fh->buffers.buffer[i].jpg.frag_tab)
 317                         dprintk(2,
 318                                 KERN_WARNING
 319                                 "%s: %s - buffer %d already allocated!?\n",
 320                                 ZR_DEVNAME(zr), __func__, i);
 321
 322                 /* Allocate fragment table for this buffer */
 323
 324                 mem = (void *)get_zeroed_page(GFP_KERNEL);
 325                 if (!mem) {
 326                         dprintk(1,
 327                                 KERN_ERR
 328                                 "%s: %s - get_zeroed_page (frag_tab) failed for buffer %d\n",
 329                                 ZR_DEVNAME(zr), __func__, i);
 330                         jpg_fbuffer_free(fh);
 331                         return -ENOBUFS;
 332                 }
 333                 fh->buffers.buffer[i].jpg.frag_tab = (__le32 *)mem;
 334                 fh->buffers.buffer[i].jpg.frag_tab_bus = virt_to_bus(mem);
 335
 336                 if (fh->buffers.need_contiguous) {
 337                         mem = kmalloc(fh->buffers.buffer_size, GFP_KERNEL);
 338                         if (mem == NULL) {
 339                                 dprintk(1,
 340                                         KERN_ERR
 341                                         "%s: %s - kmalloc failed for buffer %d\n",
 342                                         ZR_DEVNAME(zr), __func__, i);
 343                                 jpg_fbuffer_free(fh);
 344                                 return -ENOBUFS;
 345                         }
 346                         fh->buffers.buffer[i].jpg.frag_tab[0] =
 347                                 cpu_to_le32(virt_to_bus(mem));
 348                         fh->buffers.buffer[i].jpg.frag_tab[1] =
 349                                 cpu_to_le32((fh->buffers.buffer_size >> 1) | 1);
 350                         for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
 351                                 SetPageReserved(virt_to_page(mem + off));
 352                 } else {
 353                         /* jpg_bufsize is already page aligned */
 354                         for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
 355                                 mem = (void *)get_zeroed_page(GFP_KERNEL);
 356                                 if (mem == NULL) {
 357                                         dprintk(1,
 358                                                 KERN_ERR
 359                                                 "%s: %s - get_zeroed_page failed for buffer %d\n",
 360                                                 ZR_DEVNAME(zr), __func__, i);
 361                                         jpg_fbuffer_free(fh);
 362                                         return -ENOBUFS;
 363                                 }
 364
 365                                 fh->buffers.buffer[i].jpg.frag_tab[2 * j] =
 366                                         cpu_to_le32(virt_to_bus(mem));
 367                                 fh->buffers.buffer[i].jpg.frag_tab[2 * j + 1] =
 368                                         cpu_to_le32((PAGE_SIZE >> 2) << 1);
 369                                 SetPageReserved(virt_to_page(mem));
 370                         }
 371
 372                         fh->buffers.buffer[i].jpg.frag_tab[2 * j - 1] |= cpu_to_le32(1);
 373                 }
 374         }
 375
 376         dprintk(4,
 377                 KERN_DEBUG "%s: %s - %d KB allocated\n",
 378                 ZR_DEVNAME(zr), __func__,
 379                 (fh->buffers.num_buffers * fh->buffers.buffer_size) >> 10);
 380
 381         fh->buffers.allocated = 1;
 382
 383         return 0;
 384 }
 385
 386 /* free the MJPEG grab buffers */
 387 static void jpg_fbuffer_free(struct zoran_fh *fh)
 388 {
 389         struct zoran *zr = fh->zr;
 390         int i, j, off;
 391         unsigned char *mem;
 392         __le32 frag_tab;
 393         struct zoran_buffer *buffer;
 394
 395         dprintk(4, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__);
 396
 397         for (i = 0, buffer = &fh->buffers.buffer[0];
 398              i < fh->buffers.num_buffers; i++, buffer++) {
 399                 if (!buffer->jpg.frag_tab)
 400                         continue;
 401
 402                 if (fh->buffers.need_contiguous) {
 403                         frag_tab = buffer->jpg.frag_tab[0];
 404
 405                         if (frag_tab) {
 406                                 mem = bus_to_virt(le32_to_cpu(frag_tab));
 407                                 for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
 408                                         ClearPageReserved(virt_to_page(mem + off));
 409                                 kfree(mem);
 410                                 buffer->jpg.frag_tab[0] = 0;
 411                                 buffer->jpg.frag_tab[1] = 0;
 412                         }
 413                 } else {
 414                         for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
 415                                 frag_tab = buffer->jpg.frag_tab[2 * j];
 416
 417                                 if (!frag_tab)
 418                                         break;
 419                                 ClearPageReserved(virt_to_page(bus_to_virt(le32_to_cpu(frag_tab))));
 420                                 free_page((unsigned long)bus_to_virt(le32_to_cpu(frag_tab)));
 421                                 buffer->jpg.frag_tab[2 * j] = 0;
 422                                 buffer->jpg.frag_tab[2 * j + 1] = 0;
 423                         }
 424                 }
 425
 426                 free_page((unsigned long)buffer->jpg.frag_tab);
 427                 buffer->jpg.frag_tab = NULL;
 428         }
 429
 430         fh->buffers.allocated = 0;
 431 }
 432
 433 /*
 434  *   V4L Buffer grabbing
 435  */
 436
 437 static int
 438 zoran_v4l_set_format (struct zoran_fh           *fh,
 439                       int                        width,
 440                       int                        height,
 441                       const struct zoran_format *format)
 442 {
 443         struct zoran *zr = fh->zr;
 444         int bpp;
 445
 446         /* Check size and format of the grab wanted */
 447
 448         if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
 449             height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
 450                 dprintk(1,
 451                         KERN_ERR
 452                         "%s: %s - wrong frame size (%dx%d)\n",
 453                         ZR_DEVNAME(zr), __func__, width, height);
 454                 return -EINVAL;
 455         }
 456
 457         bpp = (format->depth + 7) / 8;
 458
 459         /* Check against available buffer size */
 460         if (height * width * bpp > fh->buffers.buffer_size) {
 461                 dprintk(1,
 462                         KERN_ERR
 463                         "%s: %s - video buffer size (%d kB) is too small\n",
 464                         ZR_DEVNAME(zr), __func__, fh->buffers.buffer_size >> 10);
 465                 return -EINVAL;
 466         }
 467
 468         /* The video front end needs 4-byte alinged line sizes */
 469
 470         if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
 471                 dprintk(1,
 472                         KERN_ERR
 473                         "%s: %s - wrong frame alignment\n",
 474                         ZR_DEVNAME(zr), __func__);
 475                 return -EINVAL;
 476         }
 477
 478         fh->v4l_settings.width = width;
 479         fh->v4l_settings.height = height;
 480         fh->v4l_settings.format = format;
 481         fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
 482
 483         return 0;
 484 }
 485
 486 static int zoran_v4l_queue_frame(struct zoran_fh *fh, int num)
 487 {
 488         struct zoran *zr = fh->zr;
 489         unsigned long flags;
 490         int res = 0;
 491
 492         if (!fh->buffers.allocated) {
 493                 dprintk(1,
 494                         KERN_ERR
 495                         "%s: %s - buffers not yet allocated\n",
 496                         ZR_DEVNAME(zr), __func__);
 497                 res = -ENOMEM;
 498         }
 499
 500         /* No grabbing outside the buffer range! */
 501         if (num >= fh->buffers.num_buffers || num < 0) {
 502                 dprintk(1,
 503                         KERN_ERR
 504                         "%s: %s - buffer %d is out of range\n",
 505                         ZR_DEVNAME(zr), __func__, num);
 506                 res = -EINVAL;
 507         }
 508
 509         spin_lock_irqsave(&zr->spinlock, flags);
 510
 511         if (fh->buffers.active == ZORAN_FREE) {
 512                 if (zr->v4l_buffers.active == ZORAN_FREE) {
 513                         zr->v4l_buffers = fh->buffers;
 514                         fh->buffers.active = ZORAN_ACTIVE;
 515                 } else {
 516                         dprintk(1,
 517                                 KERN_ERR
 518                                 "%s: %s - another session is already capturing\n",
 519                                 ZR_DEVNAME(zr), __func__);
 520                         res = -EBUSY;
 521                 }
 522         }
 523
 524         /* make sure a grab isn't going on currently with this buffer */
 525         if (!res) {
 526                 switch (zr->v4l_buffers.buffer[num].state) {
 527                 default:
 528                 case BUZ_STATE_PEND:
 529                         if (zr->v4l_buffers.active == ZORAN_FREE) {
 530                                 fh->buffers.active = ZORAN_FREE;
 531                                 zr->v4l_buffers.allocated = 0;
 532                         }
 533                         res = -EBUSY;   /* what are you doing? */
 534                         break;
 535                 case BUZ_STATE_DONE:
 536                         dprintk(2,
 537                                 KERN_WARNING
 538                                 "%s: %s - queueing buffer %d in state DONE!?\n",
 539                                 ZR_DEVNAME(zr), __func__, num);
 540                 case BUZ_STATE_USER:
 541                         /* since there is at least one unused buffer there's room for at least
 542                          * one more pend[] entry */
 543                         zr->v4l_pend[zr->v4l_pend_head++ & V4L_MASK_FRAME] = num;
 544                         zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
 545                         zr->v4l_buffers.buffer[num].bs.length =
 546                             fh->v4l_settings.bytesperline *
 547                             zr->v4l_settings.height;
 548                         fh->buffers.buffer[num] = zr->v4l_buffers.buffer[num];
 549                         break;
 550                 }
 551         }
 552
 553         spin_unlock_irqrestore(&zr->spinlock, flags);
 554
 555         if (!res && zr->v4l_buffers.active == ZORAN_FREE)
 556                 zr->v4l_buffers.active = fh->buffers.active;
 557
 558         return res;
 559 }
 560
 561 /*
 562  * Sync on a V4L buffer
 563  */
 564
 565 static int v4l_sync(struct zoran_fh *fh, int frame)
 566 {
 567         struct zoran *zr = fh->zr;
 568         unsigned long flags;
 569
 570         if (fh->buffers.active == ZORAN_FREE) {
 571                 dprintk(1,
 572                         KERN_ERR
 573                         "%s: %s - no grab active for this session\n",
 574                         ZR_DEVNAME(zr), __func__);
 575                 return -EINVAL;
 576         }
 577
 578         /* check passed-in frame number */
 579         if (frame >= fh->buffers.num_buffers || frame < 0) {
 580                 dprintk(1,
 581                         KERN_ERR "%s: %s - frame %d is invalid\n",
 582                         ZR_DEVNAME(zr), __func__, frame);
 583                 return -EINVAL;
 584         }
 585
 586         /* Check if is buffer was queued at all */
 587         if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
 588                 dprintk(1,
 589                         KERN_ERR
 590                         "%s: %s - attempt to sync on a buffer which was not queued?\n",
 591                         ZR_DEVNAME(zr), __func__);
 592                 return -EPROTO;
 593         }
 594
 595         /* wait on this buffer to get ready */
 596         if (!wait_event_interruptible_timeout(zr->v4l_capq,
 597                 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND), 10*HZ))
 598                 return -ETIME;
 599         if (signal_pending(current))
 600                 return -ERESTARTSYS;
 601
 602         /* buffer should now be in BUZ_STATE_DONE */
 603         if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
 604                 dprintk(2,
 605                         KERN_ERR "%s: %s - internal state error\n",
 606                         ZR_DEVNAME(zr), __func__);
 607
 608         zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
 609         fh->buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
 610
 611         spin_lock_irqsave(&zr->spinlock, flags);
 612
 613         /* Check if streaming capture has finished */
 614         if (zr->v4l_pend_tail == zr->v4l_pend_head) {
 615                 zr36057_set_memgrab(zr, 0);
 616                 if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
 617                         fh->buffers.active = zr->v4l_buffers.active = ZORAN_FREE;
 618                         zr->v4l_buffers.allocated = 0;
 619                 }
 620         }
 621
 622         spin_unlock_irqrestore(&zr->spinlock, flags);
 623
 624         return 0;
 625 }
 626
 627 /*
 628  *   Queue a MJPEG buffer for capture/playback
 629  */
 630
 631 static int zoran_jpg_queue_frame(struct zoran_fh *fh, int num,
 632                                  enum zoran_codec_mode mode)
 633 {
 634         struct zoran *zr = fh->zr;
 635         unsigned long flags;
 636         int res = 0;
 637
 638         /* Check if buffers are allocated */
 639         if (!fh->buffers.allocated) {
 640                 dprintk(1,
 641                         KERN_ERR
 642                         "%s: %s - buffers not yet allocated\n",
 643                         ZR_DEVNAME(zr), __func__);
 644                 return -ENOMEM;
 645         }
 646
 647         /* No grabbing outside the buffer range! */
 648         if (num >= fh->buffers.num_buffers || num < 0) {
 649                 dprintk(1,
 650                         KERN_ERR
 651                         "%s: %s - buffer %d out of range\n",
 652                         ZR_DEVNAME(zr), __func__, num);
 653                 return -EINVAL;
 654         }
 655
 656         /* what is the codec mode right now? */
 657         if (zr->codec_mode == BUZ_MODE_IDLE) {
 658                 zr->jpg_settings = fh->jpg_settings;
 659         } else if (zr->codec_mode != mode) {
 660                 /* wrong codec mode active - invalid */
 661                 dprintk(1,
 662                         KERN_ERR
 663                         "%s: %s - codec in wrong mode\n",
 664                         ZR_DEVNAME(zr), __func__);
 665                 return -EINVAL;
 666         }
 667
 668         if (fh->buffers.active == ZORAN_FREE) {
 669                 if (zr->jpg_buffers.active == ZORAN_FREE) {
 670                         zr->jpg_buffers = fh->buffers;
 671                         fh->buffers.active = ZORAN_ACTIVE;
 672                 } else {
 673                         dprintk(1,
 674                                 KERN_ERR
 675                                 "%s: %s - another session is already capturing\n",
 676                                 ZR_DEVNAME(zr), __func__);
 677                         res = -EBUSY;
 678                 }
 679         }
 680
 681         if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
 682                 /* Ok load up the jpeg codec */
 683                 zr36057_enable_jpg(zr, mode);
 684         }
 685
 686         spin_lock_irqsave(&zr->spinlock, flags);
 687
 688         if (!res) {
 689                 switch (zr->jpg_buffers.buffer[num].state) {
 690                 case BUZ_STATE_DONE:
 691                         dprintk(2,
 692                                 KERN_WARNING
 693                                 "%s: %s - queing frame in BUZ_STATE_DONE state!?\n",
 694                                 ZR_DEVNAME(zr), __func__);
 695                 case BUZ_STATE_USER:
 696                         /* since there is at least one unused buffer there's room for at
 697                          *least one more pend[] entry */
 698                         zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] = num;
 699                         zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
 700                         fh->buffers.buffer[num] = zr->jpg_buffers.buffer[num];
 701                         zoran_feed_stat_com(zr);
 702                         break;
 703                 default:
 704                 case BUZ_STATE_DMA:
 705                 case BUZ_STATE_PEND:
 706                         if (zr->jpg_buffers.active == ZORAN_FREE) {
 707                                 fh->buffers.active = ZORAN_FREE;
 708                                 zr->jpg_buffers.allocated = 0;
 709                         }
 710                         res = -EBUSY;   /* what are you doing? */
 711                         break;
 712                 }
 713         }
 714
 715         spin_unlock_irqrestore(&zr->spinlock, flags);
 716
 717         if (!res && zr->jpg_buffers.active == ZORAN_FREE)
 718                 zr->jpg_buffers.active = fh->buffers.active;
 719
 720         return res;
 721 }
 722
 723 static int jpg_qbuf(struct zoran_fh *fh, int frame, enum zoran_codec_mode mode)
 724 {
 725         struct zoran *zr = fh->zr;
 726         int res = 0;
 727
 728         /* Does the user want to stop streaming? */
 729         if (frame < 0) {
 730                 if (zr->codec_mode == mode) {
 731                         if (fh->buffers.active == ZORAN_FREE) {
 732                                 dprintk(1,
 733                                         KERN_ERR
 734                                         "%s: %s(-1) - session not active\n",
 735                                         ZR_DEVNAME(zr), __func__);
 736                                 return -EINVAL;
 737                         }
 738                         fh->buffers.active = zr->jpg_buffers.active = ZORAN_FREE;
 739                         zr->jpg_buffers.allocated = 0;
 740                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
 741                         return 0;
 742                 } else {
 743                         dprintk(1,
 744                                 KERN_ERR
 745                                 "%s: %s - stop streaming but not in streaming mode\n",
 746                                 ZR_DEVNAME(zr), __func__);
 747                         return -EINVAL;
 748                 }
 749         }
 750
 751         if ((res = zoran_jpg_queue_frame(fh, frame, mode)))
 752                 return res;
 753
 754         /* Start the jpeg codec when the first frame is queued  */
 755         if (!res && zr->jpg_que_head == 1)
 756                 jpeg_start(zr);
 757
 758         return res;
 759 }
 760
 761 /*
 762  *   Sync on a MJPEG buffer
 763  */
 764
 765 static int jpg_sync(struct zoran_fh *fh, struct zoran_sync *bs)
 766 {
 767         struct zoran *zr = fh->zr;
 768         unsigned long flags;
 769         int frame;
 770
 771         if (fh->buffers.active == ZORAN_FREE) {
 772                 dprintk(1,
 773                         KERN_ERR
 774                         "%s: %s - capture is not currently active\n",
 775                         ZR_DEVNAME(zr), __func__);
 776                 return -EINVAL;
 777         }
 778         if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
 779             zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
 780                 dprintk(1,
 781                         KERN_ERR
 782                         "%s: %s - codec not in streaming mode\n",
 783                         ZR_DEVNAME(zr), __func__);
 784                 return -EINVAL;
 785         }
 786         if (!wait_event_interruptible_timeout(zr->jpg_capq,
 787                         (zr->jpg_que_tail != zr->jpg_dma_tail ||
 788                          zr->jpg_dma_tail == zr->jpg_dma_head),
 789                         10*HZ)) {
 790                 int isr;
 791
 792                 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
 793                 udelay(1);
 794                 zr->codec->control(zr->codec, CODEC_G_STATUS,
 795                                            sizeof(isr), &isr);
 796                 dprintk(1,
 797                         KERN_ERR
 798                         "%s: %s - timeout: codec isr=0x%02x\n",
 799                         ZR_DEVNAME(zr), __func__, isr);
 800
 801                 return -ETIME;
 802
 803         }
 804         if (signal_pending(current))
 805                 return -ERESTARTSYS;
 806
 807         spin_lock_irqsave(&zr->spinlock, flags);
 808
 809         if (zr->jpg_dma_tail != zr->jpg_dma_head)
 810                 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
 811         else
 812                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
 813
 814         /* buffer should now be in BUZ_STATE_DONE */
 815         if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
 816                 dprintk(2,
 817                         KERN_ERR "%s: %s - internal state error\n",
 818                         ZR_DEVNAME(zr), __func__);
 819
 820         *bs = zr->jpg_buffers.buffer[frame].bs;
 821         bs->frame = frame;
 822         zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
 823         fh->buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
 824
 825         spin_unlock_irqrestore(&zr->spinlock, flags);
 826
 827         return 0;
 828 }
 829
 830 static void zoran_open_init_session(struct zoran_fh *fh)
 831 {
 832         int i;
 833         struct zoran *zr = fh->zr;
 834
 835         /* Per default, map the V4L Buffers */
 836         map_mode_raw(fh);
 837
 838         /* take over the card's current settings */
 839         fh->overlay_settings = zr->overlay_settings;
 840         fh->overlay_settings.is_set = 0;
 841         fh->overlay_settings.format = zr->overlay_settings.format;
 842         fh->overlay_active = ZORAN_FREE;
 843
 844         /* v4l settings */
 845         fh->v4l_settings = zr->v4l_settings;
 846         /* jpg settings */
 847         fh->jpg_settings = zr->jpg_settings;
 848
 849         /* buffers */
 850         memset(&fh->buffers, 0, sizeof(fh->buffers));
 851         for (i = 0; i < MAX_FRAME; i++) {
 852                 fh->buffers.buffer[i].state = BUZ_STATE_USER;   /* nothing going on */
 853                 fh->buffers.buffer[i].bs.frame = i;
 854         }
 855         fh->buffers.allocated = 0;
 856         fh->buffers.active = ZORAN_FREE;
 857 }
 858
 859 static void zoran_close_end_session(struct zoran_fh *fh)
 860 {
 861         struct zoran *zr = fh->zr;
 862
 863         /* overlay */
 864         if (fh->overlay_active != ZORAN_FREE) {
 865                 fh->overlay_active = zr->overlay_active = ZORAN_FREE;
 866                 zr->v4l_overlay_active = 0;
 867                 if (!zr->v4l_memgrab_active)
 868                         zr36057_overlay(zr, 0);
 869                 zr->overlay_mask = NULL;
 870         }
 871
 872         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
 873                 /* v4l capture */
 874                 if (fh->buffers.active != ZORAN_FREE) {
 875                         unsigned long flags;
 876
 877                         spin_lock_irqsave(&zr->spinlock, flags);
 878                         zr36057_set_memgrab(zr, 0);
 879                         zr->v4l_buffers.allocated = 0;
 880                         zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
 881                         spin_unlock_irqrestore(&zr->spinlock, flags);
 882                 }
 883
 884                 /* v4l buffers */
 885                 if (fh->buffers.allocated)
 886                         v4l_fbuffer_free(fh);
 887         } else {
 888                 /* jpg capture */
 889                 if (fh->buffers.active != ZORAN_FREE) {
 890                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
 891                         zr->jpg_buffers.allocated = 0;
 892                         zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
 893                 }
 894
 895                 /* jpg buffers */
 896                 if (fh->buffers.allocated)
 897                         jpg_fbuffer_free(fh);
 898         }
 899 }
 900
 901 /*
 902  *   Open a zoran card. Right now the flags stuff is just playing
 903  */
 904
 905 static int zoran_open(struct file *file)
 906 {
 907         struct zoran *zr = video_drvdata(file);
 908         struct zoran_fh *fh;
 909         int res, first_open = 0;
 910
 911         dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(-)=%d\n",
 912                 ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user + 1);
 913
 914         mutex_lock(&zr->other_lock);
 915
 916         if (zr->user >= 2048) {
 917                 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
 918                         ZR_DEVNAME(zr), zr->user);
 919                 res = -EBUSY;
 920                 goto fail_unlock;
 921         }
 922
 923         /* now, create the open()-specific file_ops struct */
 924         fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
 925         if (!fh) {
 926                 dprintk(1,
 927                         KERN_ERR
 928                         "%s: %s - allocation of zoran_fh failed\n",
 929                         ZR_DEVNAME(zr), __func__);
 930                 res = -ENOMEM;
 931                 goto fail_unlock;
 932         }
 933         /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
 934          * on norm-change! */
 935         fh->overlay_mask =
 936             kmalloc(((768 + 31) / 32) * 576 * 4, GFP_KERNEL);
 937         if (!fh->overlay_mask) {
 938                 dprintk(1,
 939                         KERN_ERR
 940                         "%s: %s - allocation of overlay_mask failed\n",
 941                         ZR_DEVNAME(zr), __func__);
 942                 res = -ENOMEM;
 943                 goto fail_fh;
 944         }
 945
 946         if (zr->user++ == 0)
 947                 first_open = 1;
 948
 949         /*mutex_unlock(&zr->resource_lock);*/
 950
 951         /* default setup - TODO: look at flags */
 952         if (first_open) {       /* First device open */
 953                 zr36057_restart(zr);
 954                 zoran_open_init_params(zr);
 955                 zoran_init_hardware(zr);
 956
 957                 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
 958         }
 959
 960         /* set file_ops stuff */
 961         file->private_data = fh;
 962         fh->zr = zr;
 963         zoran_open_init_session(fh);
 964         mutex_unlock(&zr->other_lock);
 965
 966         return 0;
 967
 968 fail_fh:
 969         kfree(fh);
 970 fail_unlock:
 971         mutex_unlock(&zr->other_lock);
 972
 973         dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n",
 974                 ZR_DEVNAME(zr), res, zr->user);
 975
 976         return res;
 977 }
 978
 979 static int
 980 zoran_close(struct file  *file)
 981 {
 982         struct zoran_fh *fh = file->private_data;
 983         struct zoran *zr = fh->zr;
 984
 985         dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(+)=%d\n",
 986                 ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user - 1);
 987
 988         /* kernel locks (fs/device.c), so don't do that ourselves
 989          * (prevents deadlocks) */
 990         mutex_lock(&zr->other_lock);
 991
 992         zoran_close_end_session(fh);
 993
 994         if (zr->user-- == 1) {  /* Last process */
 995                 /* Clean up JPEG process */
 996                 wake_up_interruptible(&zr->jpg_capq);
 997                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
 998                 zr->jpg_buffers.allocated = 0;
 999                 zr->jpg_buffers.active = ZORAN_FREE;
1000
1001                 /* disable interrupts */
1002                 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1003
1004                 if (zr36067_debug > 1)
1005                         print_interrupts(zr);
1006
1007                 /* Overlay off */
1008                 zr->v4l_overlay_active = 0;
1009                 zr36057_overlay(zr, 0);
1010                 zr->overlay_mask = NULL;
1011
1012                 /* capture off */
1013                 wake_up_interruptible(&zr->v4l_capq);
1014                 zr36057_set_memgrab(zr, 0);
1015                 zr->v4l_buffers.allocated = 0;
1016                 zr->v4l_buffers.active = ZORAN_FREE;
1017                 zoran_set_pci_master(zr, 0);
1018
1019                 if (!pass_through) {    /* Switch to color bar */
1020                         decoder_call(zr, video, s_stream, 0);
1021                         encoder_call(zr, video, s_routing, 2, 0, 0);
1022                 }
1023         }
1024         mutex_unlock(&zr->other_lock);
1025
1026         file->private_data = NULL;
1027         kfree(fh->overlay_mask);
1028         kfree(fh);
1029
1030         dprintk(4, KERN_INFO "%s: %s done\n", ZR_DEVNAME(zr), __func__);
1031
1032         return 0;
1033 }
1034
1035
1036 static ssize_t
1037 zoran_read (struct file *file,
1038             char        __user *data,
1039             size_t       count,
1040             loff_t      *ppos)
1041 {
1042         /* we simply don't support read() (yet)... */
1043
1044         return -EINVAL;
1045 }
1046
1047 static ssize_t
1048 zoran_write (struct file *file,
1049              const char  __user *data,
1050              size_t       count,
1051              loff_t      *ppos)
1052 {
1053         /* ...and the same goes for write() */
1054
1055         return -EINVAL;
1056 }
1057
1058 static int setup_fbuffer(struct zoran_fh *fh,
1059                void                      *base,
1060                const struct zoran_format *fmt,
1061                int                        width,
1062                int                        height,
1063                int                        bytesperline)
1064 {
1065         struct zoran *zr = fh->zr;
1066
1067         /* (Ronald) v4l/v4l2 guidelines */
1068         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1069                 return -EPERM;
1070
1071         /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
1072            ALi Magik (that needs very low latency while the card needs a
1073            higher value always) */
1074
1075         if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
1076                 return -ENXIO;
1077
1078         /* we need a bytesperline value, even if not given */
1079         if (!bytesperline)
1080                 bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
1081
1082 #if 0
1083         if (zr->overlay_active) {
1084                 /* dzjee... stupid users... don't even bother to turn off
1085                  * overlay before changing the memory location...
1086                  * normally, we would return errors here. However, one of
1087                  * the tools that does this is... xawtv! and since xawtv
1088                  * is used by +/- 99% of the users, we'd rather be user-
1089                  * friendly and silently do as if nothing went wrong */
1090                 dprintk(3,
1091                         KERN_ERR
1092                         "%s: %s - forced overlay turnoff because framebuffer changed\n",
1093                         ZR_DEVNAME(zr), __func__);
1094                 zr36057_overlay(zr, 0);
1095         }
1096 #endif
1097
1098         if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
1099                 dprintk(1,
1100                         KERN_ERR
1101                         "%s: %s - no valid overlay format given\n",
1102                         ZR_DEVNAME(zr), __func__);
1103                 return -EINVAL;
1104         }
1105         if (height <= 0 || width <= 0 || bytesperline <= 0) {
1106                 dprintk(1,
1107                         KERN_ERR
1108                         "%s: %s - invalid height/width/bpl value (%d|%d|%d)\n",
1109                         ZR_DEVNAME(zr), __func__, width, height, bytesperline);
1110                 return -EINVAL;
1111         }
1112         if (bytesperline & 3) {
1113                 dprintk(1,
1114                         KERN_ERR
1115                         "%s: %s - bytesperline (%d) must be 4-byte aligned\n",
1116                         ZR_DEVNAME(zr), __func__, bytesperline);
1117                 return -EINVAL;
1118         }
1119
1120         zr->vbuf_base = (void *) ((unsigned long) base & ~3);
1121         zr->vbuf_height = height;
1122         zr->vbuf_width = width;
1123         zr->vbuf_depth = fmt->depth;
1124         zr->overlay_settings.format = fmt;
1125         zr->vbuf_bytesperline = bytesperline;
1126
1127         /* The user should set new window parameters */
1128         zr->overlay_settings.is_set = 0;
1129
1130         return 0;
1131 }
1132
1133
1134 static int setup_window(struct zoran_fh *fh, int x, int y, int width, int height,
1135         struct v4l2_clip __user *clips, int clipcount, void __user *bitmap)
1136 {
1137         struct zoran *zr = fh->zr;
1138         struct v4l2_clip *vcp = NULL;
1139         int on, end;
1140
1141
1142         if (!zr->vbuf_base) {
1143                 dprintk(1,
1144                         KERN_ERR
1145                         "%s: %s - frame buffer has to be set first\n",
1146                         ZR_DEVNAME(zr), __func__);
1147                 return -EINVAL;
1148         }
1149
1150         if (!fh->overlay_settings.format) {
1151                 dprintk(1,
1152                         KERN_ERR
1153                         "%s: %s - no overlay format set\n",
1154                         ZR_DEVNAME(zr), __func__);
1155                 return -EINVAL;
1156         }
1157
1158         /*
1159          * The video front end needs 4-byte alinged line sizes, we correct that
1160          * silently here if necessary
1161          */
1162         if (zr->vbuf_depth == 15 || zr->vbuf_depth == 16) {
1163                 end = (x + width) & ~1; /* round down */
1164                 x = (x + 1) & ~1;       /* round up */
1165                 width = end - x;
1166         }
1167
1168         if (zr->vbuf_depth == 24) {
1169                 end = (x + width) & ~3; /* round down */
1170                 x = (x + 3) & ~3;       /* round up */
1171                 width = end - x;
1172         }
1173
1174         if (width > BUZ_MAX_WIDTH)
1175                 width = BUZ_MAX_WIDTH;
1176         if (height > BUZ_MAX_HEIGHT)
1177                 height = BUZ_MAX_HEIGHT;
1178
1179         /* Check for invalid parameters */
1180         if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
1181             width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
1182                 dprintk(1,
1183                         KERN_ERR
1184                         "%s: %s - width = %d or height = %d invalid\n",
1185                         ZR_DEVNAME(zr), __func__, width, height);
1186                 return -EINVAL;
1187         }
1188
1189         fh->overlay_settings.x = x;
1190         fh->overlay_settings.y = y;
1191         fh->overlay_settings.width = width;
1192         fh->overlay_settings.height = height;
1193         fh->overlay_settings.clipcount = clipcount;
1194
1195         /*
1196          * If an overlay is running, we have to switch it off
1197          * and switch it on again in order to get the new settings in effect.
1198          *
1199          * We also want to avoid that the overlay mask is written
1200          * when an overlay is running.
1201          */
1202
1203         on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
1204             zr->overlay_active != ZORAN_FREE &&
1205             fh->overlay_active != ZORAN_FREE;
1206         if (on)
1207                 zr36057_overlay(zr, 0);
1208
1209         /*
1210          *   Write the overlay mask if clips are wanted.
1211          *   We prefer a bitmap.
1212          */
1213         if (bitmap) {
1214                 /* fake value - it just means we want clips */
1215                 fh->overlay_settings.clipcount = 1;
1216
1217                 if (copy_from_user(fh->overlay_mask, bitmap,
1218                                    (width * height + 7) / 8)) {
1219                         return -EFAULT;
1220                 }
1221         } else if (clipcount > 0) {
1222                 /* write our own bitmap from the clips */
1223                 vcp = vmalloc(sizeof(struct v4l2_clip) * (clipcount + 4));
1224                 if (vcp == NULL) {
1225                         dprintk(1,
1226                                 KERN_ERR
1227                                 "%s: %s - Alloc of clip mask failed\n",
1228                                 ZR_DEVNAME(zr), __func__);
1229                         return -ENOMEM;
1230                 }
1231                 if (copy_from_user
1232                     (vcp, clips, sizeof(struct v4l2_clip) * clipcount)) {
1233                         vfree(vcp);
1234                         return -EFAULT;
1235                 }
1236                 write_overlay_mask(fh, vcp, clipcount);
1237                 vfree(vcp);
1238         }
1239
1240         fh->overlay_settings.is_set = 1;
1241         if (fh->overlay_active != ZORAN_FREE &&
1242             zr->overlay_active != ZORAN_FREE)
1243                 zr->overlay_settings = fh->overlay_settings;
1244
1245         if (on)
1246                 zr36057_overlay(zr, 1);
1247
1248         /* Make sure the changes come into effect */
1249         return wait_grab_pending(zr);
1250 }
1251
1252 static int setup_overlay(struct zoran_fh *fh, int on)
1253 {
1254         struct zoran *zr = fh->zr;
1255
1256         /* If there is nothing to do, return immediately */
1257         if ((on && fh->overlay_active != ZORAN_FREE) ||
1258             (!on && fh->overlay_active == ZORAN_FREE))
1259                 return 0;
1260
1261         /* check whether we're touching someone else's overlay */
1262         if (on && zr->overlay_active != ZORAN_FREE &&
1263             fh->overlay_active == ZORAN_FREE) {
1264                 dprintk(1,
1265                         KERN_ERR
1266                         "%s: %s - overlay is already active for another session\n",
1267                         ZR_DEVNAME(zr), __func__);
1268                 return -EBUSY;
1269         }
1270         if (!on && zr->overlay_active != ZORAN_FREE &&
1271             fh->overlay_active == ZORAN_FREE) {
1272                 dprintk(1,
1273                         KERN_ERR
1274                         "%s: %s - you cannot cancel someone else's session\n",
1275                         ZR_DEVNAME(zr), __func__);
1276                 return -EPERM;
1277         }
1278
1279         if (on == 0) {
1280                 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1281                 zr->v4l_overlay_active = 0;
1282                 /* When a grab is running, the video simply
1283                  * won't be switched on any more */
1284                 if (!zr->v4l_memgrab_active)
1285                         zr36057_overlay(zr, 0);
1286                 zr->overlay_mask = NULL;
1287         } else {
1288                 if (!zr->vbuf_base || !fh->overlay_settings.is_set) {
1289                         dprintk(1,
1290                                 KERN_ERR
1291                                 "%s: %s - buffer or window not set\n",
1292                                 ZR_DEVNAME(zr), __func__);
1293                         return -EINVAL;
1294                 }
1295                 if (!fh->overlay_settings.format) {
1296                         dprintk(1,
1297                                 KERN_ERR
1298                                 "%s: %s - no overlay format set\n",
1299                                 ZR_DEVNAME(zr), __func__);
1300                         return -EINVAL;
1301                 }
1302                 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1303                 zr->v4l_overlay_active = 1;
1304                 zr->overlay_mask = fh->overlay_mask;
1305                 zr->overlay_settings = fh->overlay_settings;
1306                 if (!zr->v4l_memgrab_active)
1307                         zr36057_overlay(zr, 1);
1308                 /* When a grab is running, the video will be
1309                  * switched on when grab is finished */
1310         }
1311
1312         /* Make sure the changes come into effect */
1313         return wait_grab_pending(zr);
1314 }
1315
1316 /* get the status of a buffer in the clients buffer queue */
1317 static int zoran_v4l2_buffer_status(struct zoran_fh *fh,
1318                                     struct v4l2_buffer *buf, int num)
1319 {
1320         struct zoran *zr = fh->zr;
1321         unsigned long flags;
1322
1323         buf->flags = V4L2_BUF_FLAG_MAPPED;
1324
1325         switch (fh->map_mode) {
1326         case ZORAN_MAP_MODE_RAW:
1327                 /* check range */
1328                 if (num < 0 || num >= fh->buffers.num_buffers ||
1329                     !fh->buffers.allocated) {
1330                         dprintk(1,
1331                                 KERN_ERR
1332                                 "%s: %s - wrong number or buffers not allocated\n",
1333                                 ZR_DEVNAME(zr), __func__);
1334                         return -EINVAL;
1335                 }
1336
1337                 spin_lock_irqsave(&zr->spinlock, flags);
1338                 dprintk(3,
1339                         KERN_DEBUG
1340                         "%s: %s() - raw active=%c, buffer %d: state=%c, map=%c\n",
1341                         ZR_DEVNAME(zr), __func__,
1342                         "FAL"[fh->buffers.active], num,
1343                         "UPMD"[zr->v4l_buffers.buffer[num].state],
1344                         fh->buffers.buffer[num].map ? 'Y' : 'N');
1345                 spin_unlock_irqrestore(&zr->spinlock, flags);
1346
1347                 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1348                 buf->length = fh->buffers.buffer_size;
1349
1350                 /* get buffer */
1351                 buf->bytesused = fh->buffers.buffer[num].bs.length;
1352                 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
1353                     fh->buffers.buffer[num].state == BUZ_STATE_USER) {
1354                         buf->sequence = fh->buffers.buffer[num].bs.seq;
1355                         buf->flags |= V4L2_BUF_FLAG_DONE;
1356                         buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
1357                 } else {
1358                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1359                 }
1360
1361                 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1362                         buf->field = V4L2_FIELD_TOP;
1363                 else
1364                         buf->field = V4L2_FIELD_INTERLACED;
1365
1366                 break;
1367
1368         case ZORAN_MAP_MODE_JPG_REC:
1369         case ZORAN_MAP_MODE_JPG_PLAY:
1370
1371                 /* check range */
1372                 if (num < 0 || num >= fh->buffers.num_buffers ||
1373                     !fh->buffers.allocated) {
1374                         dprintk(1,
1375                                 KERN_ERR
1376                                 "%s: %s - wrong number or buffers not allocated\n",
1377                                 ZR_DEVNAME(zr), __func__);
1378                         return -EINVAL;
1379                 }
1380
1381                 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1382                               V4L2_BUF_TYPE_VIDEO_CAPTURE :
1383                               V4L2_BUF_TYPE_VIDEO_OUTPUT;
1384                 buf->length = fh->buffers.buffer_size;
1385
1386                 /* these variables are only written after frame has been captured */
1387                 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
1388                     fh->buffers.buffer[num].state == BUZ_STATE_USER) {
1389                         buf->sequence = fh->buffers.buffer[num].bs.seq;
1390                         buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
1391                         buf->bytesused = fh->buffers.buffer[num].bs.length;
1392                         buf->flags |= V4L2_BUF_FLAG_DONE;
1393                 } else {
1394                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1395                 }
1396
1397                 /* which fields are these? */
1398                 if (fh->jpg_settings.TmpDcm != 1)
1399                         buf->field = fh->jpg_settings.odd_even ?
1400                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1401                 else
1402                         buf->field = fh->jpg_settings.odd_even ?
1403                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT;
1404
1405                 break;
1406
1407         default:
1408
1409                 dprintk(5,
1410                         KERN_ERR
1411                         "%s: %s - invalid buffer type|map_mode (%d|%d)\n",
1412                         ZR_DEVNAME(zr), __func__, buf->type, fh->map_mode);
1413                 return -EINVAL;
1414         }
1415
1416         buf->memory = V4L2_MEMORY_MMAP;
1417         buf->index = num;
1418         buf->m.offset = buf->length * num;
1419
1420         return 0;
1421 }
1422
1423 static int
1424 zoran_set_norm (struct zoran *zr,
1425                 v4l2_std_id norm)
1426 {
1427         int on;
1428
1429         if (zr->v4l_buffers.active != ZORAN_FREE ||
1430             zr->jpg_buffers.active != ZORAN_FREE) {
1431                 dprintk(1,
1432                         KERN_WARNING
1433                         "%s: %s called while in playback/capture mode\n",
1434                         ZR_DEVNAME(zr), __func__);
1435                 return -EBUSY;
1436         }
1437
1438         if (!(norm & zr->card.norms)) {
1439                 dprintk(1,
1440                         KERN_ERR "%s: %s - unsupported norm %llx\n",
1441                         ZR_DEVNAME(zr), __func__, norm);
1442                 return -EINVAL;
1443         }
1444
1445         if (norm == V4L2_STD_ALL) {
1446                 unsigned int status = 0;
1447                 v4l2_std_id std = 0;
1448
1449                 decoder_call(zr, video, querystd, &std);
1450                 decoder_call(zr, core, s_std, std);
1451
1452                 /* let changes come into effect */
1453                 ssleep(2);
1454
1455                 decoder_call(zr, video, g_input_status, &status);
1456                 if (status & V4L2_IN_ST_NO_SIGNAL) {
1457                         dprintk(1,
1458                                 KERN_ERR
1459                                 "%s: %s - no norm detected\n",
1460                                 ZR_DEVNAME(zr), __func__);
1461                         /* reset norm */
1462                         decoder_call(zr, core, s_std, zr->norm);
1463                         return -EIO;
1464                 }
1465
1466                 norm = std;
1467         }
1468         if (norm & V4L2_STD_SECAM)
1469                 zr->timing = zr->card.tvn[2];
1470         else if (norm & V4L2_STD_NTSC)
1471                 zr->timing = zr->card.tvn[1];
1472         else
1473                 zr->timing = zr->card.tvn[0];
1474
1475         /* We switch overlay off and on since a change in the
1476          * norm needs different VFE settings */
1477         on = zr->overlay_active && !zr->v4l_memgrab_active;
1478         if (on)
1479                 zr36057_overlay(zr, 0);
1480
1481         decoder_call(zr, core, s_std, norm);
1482         encoder_call(zr, video, s_std_output, norm);
1483
1484         if (on)
1485                 zr36057_overlay(zr, 1);
1486
1487         /* Make sure the changes come into effect */
1488         zr->norm = norm;
1489
1490         return 0;
1491 }
1492
1493 static int
1494 zoran_set_input (struct zoran *zr,
1495                  int           input)
1496 {
1497         if (input == zr->input) {
1498                 return 0;
1499         }
1500
1501         if (zr->v4l_buffers.active != ZORAN_FREE ||
1502             zr->jpg_buffers.active != ZORAN_FREE) {
1503                 dprintk(1,
1504                         KERN_WARNING
1505                         "%s: %s called while in playback/capture mode\n",
1506                         ZR_DEVNAME(zr), __func__);
1507                 return -EBUSY;
1508         }
1509
1510         if (input < 0 || input >= zr->card.inputs) {
1511                 dprintk(1,
1512                         KERN_ERR
1513                         "%s: %s - unnsupported input %d\n",
1514                         ZR_DEVNAME(zr), __func__, input);
1515                 return -EINVAL;
1516         }
1517
1518         zr->input = input;
1519
1520         decoder_call(zr, video, s_routing,
1521                         zr->card.input[input].muxsel, 0, 0);
1522
1523         return 0;
1524 }
1525
1526 /*
1527  *   ioctl routine
1528  */
1529
1530 static int zoran_querycap(struct file *file, void *__fh, struct v4l2_capability *cap)
1531 {
1532         struct zoran_fh *fh = __fh;
1533         struct zoran *zr = fh->zr;
1534
1535         memset(cap, 0, sizeof(*cap));
1536         strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
1537         strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
1538         snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
1539                  pci_name(zr->pci_dev));
1540         cap->capabilities = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE |
1541                             V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_VIDEO_OVERLAY;
1542         return 0;
1543 }
1544
1545 static int zoran_enum_fmt(struct zoran *zr, struct v4l2_fmtdesc *fmt, int flag)
1546 {
1547         unsigned int num, i;
1548
1549         for (num = i = 0; i < NUM_FORMATS; i++) {
1550                 if (zoran_formats[i].flags & flag && num++ == fmt->index) {
1551                         strncpy(fmt->description, zoran_formats[i].name,
1552                                 sizeof(fmt->description) - 1);
1553                         /* fmt struct pre-zeroed, so adding '\0' not neeed */
1554                         fmt->pixelformat = zoran_formats[i].fourcc;
1555                         if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
1556                                 fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
1557                         return 0;
1558                 }
1559         }
1560         return -EINVAL;
1561 }
1562
1563 static int zoran_enum_fmt_vid_cap(struct file *file, void *__fh,
1564                                             struct v4l2_fmtdesc *f)
1565 {
1566         struct zoran_fh *fh = __fh;
1567         struct zoran *zr = fh->zr;
1568
1569         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_CAPTURE);
1570 }
1571
1572 static int zoran_enum_fmt_vid_out(struct file *file, void *__fh,
1573                                             struct v4l2_fmtdesc *f)
1574 {
1575         struct zoran_fh *fh = __fh;
1576         struct zoran *zr = fh->zr;
1577
1578         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_PLAYBACK);
1579 }
1580
1581 static int zoran_enum_fmt_vid_overlay(struct file *file, void *__fh,
1582                                             struct v4l2_fmtdesc *f)
1583 {
1584         struct zoran_fh *fh = __fh;
1585         struct zoran *zr = fh->zr;
1586
1587         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_OVERLAY);
1588 }
1589
1590 static int zoran_g_fmt_vid_out(struct file *file, void *__fh,
1591                                         struct v4l2_format *fmt)
1592 {
1593         struct zoran_fh *fh = __fh;
1594         struct zoran *zr = fh->zr;
1595
1596         mutex_lock(&zr->resource_lock);
1597
1598         fmt->fmt.pix.width = fh->jpg_settings.img_width / fh->jpg_settings.HorDcm;
1599         fmt->fmt.pix.height = fh->jpg_settings.img_height * 2 /
1600                 (fh->jpg_settings.VerDcm * fh->jpg_settings.TmpDcm);
1601         fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1602         fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
1603         if (fh->jpg_settings.TmpDcm == 1)
1604                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1605                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1606         else
1607                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1608                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1609         fmt->fmt.pix.bytesperline = 0;
1610         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1611
1612         mutex_unlock(&zr->resource_lock);
1613         return 0;
1614 }
1615
1616 static int zoran_g_fmt_vid_cap(struct file *file, void *__fh,
1617                                         struct v4l2_format *fmt)
1618 {
1619         struct zoran_fh *fh = __fh;
1620         struct zoran *zr = fh->zr;
1621
1622         if (fh->map_mode != ZORAN_MAP_MODE_RAW)
1623                 return zoran_g_fmt_vid_out(file, fh, fmt);
1624
1625         mutex_lock(&zr->resource_lock);
1626         fmt->fmt.pix.width = fh->v4l_settings.width;
1627         fmt->fmt.pix.height = fh->v4l_settings.height;
1628         fmt->fmt.pix.sizeimage = fh->v4l_settings.bytesperline *
1629                                         fh->v4l_settings.height;
1630         fmt->fmt.pix.pixelformat = fh->v4l_settings.format->fourcc;
1631         fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
1632         fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
1633         if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
1634                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
1635         else
1636                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
1637         mutex_unlock(&zr->resource_lock);
1638         return 0;
1639 }
1640
1641 static int zoran_g_fmt_vid_overlay(struct file *file, void *__fh,
1642                                         struct v4l2_format *fmt)
1643 {
1644         struct zoran_fh *fh = __fh;
1645         struct zoran *zr = fh->zr;
1646
1647         mutex_lock(&zr->resource_lock);
1648
1649         fmt->fmt.win.w.left = fh->overlay_settings.x;
1650         fmt->fmt.win.w.top = fh->overlay_settings.y;
1651         fmt->fmt.win.w.width = fh->overlay_settings.width;
1652         fmt->fmt.win.w.height = fh->overlay_settings.height;
1653         if (fh->overlay_settings.width * 2 > BUZ_MAX_HEIGHT)
1654                 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
1655         else
1656                 fmt->fmt.win.field = V4L2_FIELD_TOP;
1657
1658         mutex_unlock(&zr->resource_lock);
1659         return 0;
1660 }
1661
1662 static int zoran_try_fmt_vid_overlay(struct file *file, void *__fh,
1663                                         struct v4l2_format *fmt)
1664 {
1665         struct zoran_fh *fh = __fh;
1666         struct zoran *zr = fh->zr;
1667
1668         mutex_lock(&zr->resource_lock);
1669
1670         if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
1671                 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
1672         if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
1673                 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
1674         if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
1675                 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
1676         if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
1677                 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
1678
1679         mutex_unlock(&zr->resource_lock);
1680         return 0;
1681 }
1682
1683 static int zoran_try_fmt_vid_out(struct file *file, void *__fh,
1684                                         struct v4l2_format *fmt)
1685 {
1686         struct zoran_fh *fh = __fh;
1687         struct zoran *zr = fh->zr;
1688         struct zoran_jpg_settings settings;
1689         int res = 0;
1690
1691         if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
1692                 return -EINVAL;
1693
1694         mutex_lock(&zr->resource_lock);
1695         settings = fh->jpg_settings;
1696
1697         /* we actually need to set 'real' parameters now */
1698         if ((fmt->fmt.pix.height * 2) > BUZ_MAX_HEIGHT)
1699                 settings.TmpDcm = 1;
1700         else
1701                 settings.TmpDcm = 2;
1702         settings.decimation = 0;
1703         if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
1704                 settings.VerDcm = 2;
1705         else
1706                 settings.VerDcm = 1;
1707         if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
1708                 settings.HorDcm = 4;
1709         else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
1710                 settings.HorDcm = 2;
1711         else
1712                 settings.HorDcm = 1;
1713         if (settings.TmpDcm == 1)
1714                 settings.field_per_buff = 2;
1715         else
1716                 settings.field_per_buff = 1;
1717
1718         if (settings.HorDcm > 1) {
1719                 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
1720                 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
1721         } else {
1722                 settings.img_x = 0;
1723                 settings.img_width = BUZ_MAX_WIDTH;
1724         }
1725
1726         /* check */
1727         res = zoran_check_jpg_settings(zr, &settings, 1);
1728         if (res)
1729                 goto tryfmt_unlock_and_return;
1730
1731         /* tell the user what we actually did */
1732         fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
1733         fmt->fmt.pix.height = settings.img_height * 2 /
1734                 (settings.TmpDcm * settings.VerDcm);
1735         if (settings.TmpDcm == 1)
1736                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1737                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1738         else
1739                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1740                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1741
1742         fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&settings);
1743         fmt->fmt.pix.bytesperline = 0;
1744         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1745 tryfmt_unlock_and_return:
1746         mutex_unlock(&zr->resource_lock);
1747         return res;
1748 }
1749
1750 static int zoran_try_fmt_vid_cap(struct file *file, void *__fh,
1751                                         struct v4l2_format *fmt)
1752 {
1753         struct zoran_fh *fh = __fh;
1754         struct zoran *zr = fh->zr;
1755         int bpp;
1756         int i;
1757
1758         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
1759                 return zoran_try_fmt_vid_out(file, fh, fmt);
1760
1761         mutex_lock(&zr->resource_lock);
1762
1763         for (i = 0; i < NUM_FORMATS; i++)
1764                 if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat)
1765                         break;
1766
1767         if (i == NUM_FORMATS) {
1768                 mutex_unlock(&zr->resource_lock);
1769                 return -EINVAL;
1770         }
1771
1772         bpp = DIV_ROUND_UP(zoran_formats[i].depth, 8);
1773         v4l_bound_align_image(
1774                 &fmt->fmt.pix.width, BUZ_MIN_WIDTH, BUZ_MAX_WIDTH, bpp == 2 ? 1 : 2,
1775                 &fmt->fmt.pix.height, BUZ_MIN_HEIGHT, BUZ_MAX_HEIGHT, 0, 0);
1776         mutex_unlock(&zr->resource_lock);
1777
1778         return 0;
1779 }
1780
1781 static int zoran_s_fmt_vid_overlay(struct file *file, void *__fh,
1782                                         struct v4l2_format *fmt)
1783 {
1784         struct zoran_fh *fh = __fh;
1785         struct zoran *zr = fh->zr;
1786         int res;
1787
1788         dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
1789                         fmt->fmt.win.w.left, fmt->fmt.win.w.top,
1790                         fmt->fmt.win.w.width,
1791                         fmt->fmt.win.w.height,
1792                         fmt->fmt.win.clipcount,
1793                         fmt->fmt.win.bitmap);
1794         mutex_lock(&zr->resource_lock);
1795         res = setup_window(fh, fmt->fmt.win.w.left, fmt->fmt.win.w.top,
1796                            fmt->fmt.win.w.width, fmt->fmt.win.w.height,
1797                            (struct v4l2_clip __user *)fmt->fmt.win.clips,
1798                            fmt->fmt.win.clipcount, fmt->fmt.win.bitmap);
1799         mutex_unlock(&zr->resource_lock);
1800         return res;
1801 }
1802
1803 static int zoran_s_fmt_vid_out(struct file *file, void *__fh,
1804                                         struct v4l2_format *fmt)
1805 {
1806         struct zoran_fh *fh = __fh;
1807         struct zoran *zr = fh->zr;
1808         __le32 printformat = __cpu_to_le32(fmt->fmt.pix.pixelformat);
1809         struct zoran_jpg_settings settings;
1810         int res = 0;
1811
1812         dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
1813                         fmt->fmt.pix.width, fmt->fmt.pix.height,
1814                         fmt->fmt.pix.pixelformat,
1815                         (char *) &printformat);
1816         if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
1817                 return -EINVAL;
1818
1819         mutex_lock(&zr->resource_lock);
1820
1821         if (fh->buffers.allocated) {
1822                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
1823                         ZR_DEVNAME(zr));
1824                 res = -EBUSY;
1825                 goto sfmtjpg_unlock_and_return;
1826         }
1827
1828         settings = fh->jpg_settings;
1829
1830         /* we actually need to set 'real' parameters now */
1831         if (fmt->fmt.pix.height * 2 > BUZ_MAX_HEIGHT)
1832                 settings.TmpDcm = 1;
1833         else
1834                 settings.TmpDcm = 2;
1835         settings.decimation = 0;
1836         if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
1837                 settings.VerDcm = 2;
1838         else
1839                 settings.VerDcm = 1;
1840         if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
1841                 settings.HorDcm = 4;
1842         else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
1843                 settings.HorDcm = 2;
1844         else
1845                 settings.HorDcm = 1;
1846         if (settings.TmpDcm == 1)
1847                 settings.field_per_buff = 2;
1848         else
1849                 settings.field_per_buff = 1;
1850
1851         if (settings.HorDcm > 1) {
1852                 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
1853                 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
1854         } else {
1855                 settings.img_x = 0;
1856                 settings.img_width = BUZ_MAX_WIDTH;
1857         }
1858
1859         /* check */
1860         res = zoran_check_jpg_settings(zr, &settings, 0);
1861         if (res)
1862                 goto sfmtjpg_unlock_and_return;
1863
1864         /* it's ok, so set them */
1865         fh->jpg_settings = settings;
1866
1867         map_mode_jpg(fh, fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
1868         fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1869
1870         /* tell the user what we actually did */
1871         fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
1872         fmt->fmt.pix.height = settings.img_height * 2 /
1873                 (settings.TmpDcm * settings.VerDcm);
1874         if (settings.TmpDcm == 1)
1875                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1876                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1877         else
1878                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1879                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1880         fmt->fmt.pix.bytesperline = 0;
1881         fmt->fmt.pix.sizeimage = fh->buffers.buffer_size;
1882         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1883
1884 sfmtjpg_unlock_and_return:
1885         mutex_unlock(&zr->resource_lock);
1886         return res;
1887 }
1888
1889 static int zoran_s_fmt_vid_cap(struct file *file, void *__fh,
1890                                         struct v4l2_format *fmt)
1891 {
1892         struct zoran_fh *fh = __fh;
1893         struct zoran *zr = fh->zr;
1894         int i;
1895         int res = 0;
1896
1897         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
1898                 return zoran_s_fmt_vid_out(file, fh, fmt);
1899
1900         for (i = 0; i < NUM_FORMATS; i++)
1901                 if (fmt->fmt.pix.pixelformat == zoran_formats[i].fourcc)
1902                         break;
1903         if (i == NUM_FORMATS) {
1904                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x\n",
1905                         ZR_DEVNAME(zr), fmt->fmt.pix.pixelformat);
1906                 return -EINVAL;
1907         }
1908
1909         mutex_lock(&zr->resource_lock);
1910
1911         if ((fh->map_mode != ZORAN_MAP_MODE_RAW && fh->buffers.allocated) ||
1912             fh->buffers.active != ZORAN_FREE) {
1913                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
1914                                 ZR_DEVNAME(zr));
1915                 res = -EBUSY;
1916                 goto sfmtv4l_unlock_and_return;
1917         }
1918         if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
1919                 fmt->fmt.pix.height = BUZ_MAX_HEIGHT;
1920         if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
1921                 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
1922
1923         map_mode_raw(fh);
1924
1925         res = zoran_v4l_set_format(fh, fmt->fmt.pix.width, fmt->fmt.pix.height,
1926                                    &zoran_formats[i]);
1927         if (res)
1928                 goto sfmtv4l_unlock_and_return;
1929
1930         /* tell the user the results/missing stuff */
1931         fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
1932         fmt->fmt.pix.sizeimage = fh->v4l_settings.height * fh->v4l_settings.bytesperline;
1933         fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
1934         if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
1935                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
1936         else
1937                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
1938
1939 sfmtv4l_unlock_and_return:
1940         mutex_unlock(&zr->resource_lock);
1941         return res;
1942 }
1943
1944 static int zoran_g_fbuf(struct file *file, void *__fh,
1945                 struct v4l2_framebuffer *fb)
1946 {
1947         struct zoran_fh *fh = __fh;
1948         struct zoran *zr = fh->zr;
1949
1950         memset(fb, 0, sizeof(*fb));
1951         mutex_lock(&zr->resource_lock);
1952         fb->base = zr->vbuf_base;
1953         fb->fmt.width = zr->vbuf_width;
1954         fb->fmt.height = zr->vbuf_height;
1955         if (zr->overlay_settings.format)
1956                 fb->fmt.pixelformat = fh->overlay_settings.format->fourcc;
1957         fb->fmt.bytesperline = zr->vbuf_bytesperline;
1958         mutex_unlock(&zr->resource_lock);
1959         fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1960         fb->fmt.field = V4L2_FIELD_INTERLACED;
1961         fb->flags = V4L2_FBUF_FLAG_OVERLAY;
1962         fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
1963
1964         return 0;
1965 }
1966
1967 static int zoran_s_fbuf(struct file *file, void *__fh,
1968                 struct v4l2_framebuffer *fb)
1969 {
1970         struct zoran_fh *fh = __fh;
1971         struct zoran *zr = fh->zr;
1972         int i, res = 0;
1973         __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
1974
1975         for (i = 0; i < NUM_FORMATS; i++)
1976                 if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
1977                         break;
1978         if (i == NUM_FORMATS) {
1979                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
1980                         ZR_DEVNAME(zr), fb->fmt.pixelformat,
1981                         (char *)&printformat);
1982                 return -EINVAL;
1983         }
1984
1985         mutex_lock(&zr->resource_lock);
1986         res = setup_fbuffer(fh, fb->base, &zoran_formats[i], fb->fmt.width,
1987                             fb->fmt.height, fb->fmt.bytesperline);
1988         mutex_unlock(&zr->resource_lock);
1989
1990         return res;
1991 }
1992
1993 static int zoran_overlay(struct file *file, void *__fh, unsigned int on)
1994 {
1995         struct zoran_fh *fh = __fh;
1996         struct zoran *zr = fh->zr;
1997         int res;
1998
1999         mutex_lock(&zr->resource_lock);
2000         res = setup_overlay(fh, on);
2001         mutex_unlock(&zr->resource_lock);
2002
2003         return res;
2004 }
2005
2006 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type);
2007
2008 static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *req)
2009 {
2010         struct zoran_fh *fh = __fh;
2011         struct zoran *zr = fh->zr;
2012         int res = 0;
2013
2014         if (req->memory != V4L2_MEMORY_MMAP) {
2015                 dprintk(2,
2016                                 KERN_ERR
2017                                 "%s: only MEMORY_MMAP capture is supported, not %d\n",
2018                                 ZR_DEVNAME(zr), req->memory);
2019                 return -EINVAL;
2020         }
2021
2022         if (req->count == 0)
2023                 return zoran_streamoff(file, fh, req->type);
2024
2025         mutex_lock(&zr->resource_lock);
2026         if (fh->buffers.allocated) {
2027                 dprintk(2,
2028                                 KERN_ERR
2029                                 "%s: VIDIOC_REQBUFS - buffers already allocated\n",
2030                                 ZR_DEVNAME(zr));
2031                 res = -EBUSY;
2032                 goto v4l2reqbuf_unlock_and_return;
2033         }
2034
2035         if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
2036             req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2037                 /* control user input */
2038                 if (req->count < 2)
2039                         req->count = 2;
2040                 if (req->count > v4l_nbufs)
2041                         req->count = v4l_nbufs;
2042
2043                 /* The next mmap will map the V4L buffers */
2044                 map_mode_raw(fh);
2045                 fh->buffers.num_buffers = req->count;
2046
2047                 if (v4l_fbuffer_alloc(fh)) {
2048                         res = -ENOMEM;
2049                         goto v4l2reqbuf_unlock_and_return;
2050                 }
2051         } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
2052                    fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
2053                 /* we need to calculate size ourselves now */
2054                 if (req->count < 4)
2055                         req->count = 4;
2056                 if (req->count > jpg_nbufs)
2057                         req->count = jpg_nbufs;
2058
2059                 /* The next mmap will map the MJPEG buffers */
2060                 map_mode_jpg(fh, req->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
2061                 fh->buffers.num_buffers = req->count;
2062                 fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
2063
2064                 if (jpg_fbuffer_alloc(fh)) {
2065                         res = -ENOMEM;
2066                         goto v4l2reqbuf_unlock_and_return;
2067                 }
2068         } else {
2069                 dprintk(1,
2070                                 KERN_ERR
2071                                 "%s: VIDIOC_REQBUFS - unknown type %d\n",
2072                                 ZR_DEVNAME(zr), req->type);
2073                 res = -EINVAL;
2074                 goto v4l2reqbuf_unlock_and_return;
2075         }
2076 v4l2reqbuf_unlock_and_return:
2077         mutex_unlock(&zr->resource_lock);
2078
2079         return res;
2080 }
2081
2082 static int zoran_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2083 {
2084         struct zoran_fh *fh = __fh;
2085         struct zoran *zr = fh->zr;
2086         int res;
2087
2088         mutex_lock(&zr->resource_lock);
2089         res = zoran_v4l2_buffer_status(fh, buf, buf->index);
2090         mutex_unlock(&zr->resource_lock);
2091
2092         return res;
2093 }
2094
2095 static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2096 {
2097         struct zoran_fh *fh = __fh;
2098         struct zoran *zr = fh->zr;
2099         int res = 0, codec_mode, buf_type;
2100
2101         mutex_lock(&zr->resource_lock);
2102
2103         switch (fh->map_mode) {
2104         case ZORAN_MAP_MODE_RAW:
2105                 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2106                         dprintk(1, KERN_ERR
2107                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2108                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2109                         res = -EINVAL;
2110                         goto qbuf_unlock_and_return;
2111                 }
2112
2113                 res = zoran_v4l_queue_frame(fh, buf->index);
2114                 if (res)
2115                         goto qbuf_unlock_and_return;
2116                 if (!zr->v4l_memgrab_active && fh->buffers.active == ZORAN_LOCKED)
2117                         zr36057_set_memgrab(zr, 1);
2118                 break;
2119
2120         case ZORAN_MAP_MODE_JPG_REC:
2121         case ZORAN_MAP_MODE_JPG_PLAY:
2122                 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
2123                         buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2124                         codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
2125                 } else {
2126                         buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2127                         codec_mode = BUZ_MODE_MOTION_COMPRESS;
2128                 }
2129
2130                 if (buf->type != buf_type) {
2131                         dprintk(1, KERN_ERR
2132                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2133                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2134                         res = -EINVAL;
2135                         goto qbuf_unlock_and_return;
2136                 }
2137
2138                 res = zoran_jpg_queue_frame(fh, buf->index, codec_mode);
2139                 if (res != 0)
2140                         goto qbuf_unlock_and_return;
2141                 if (zr->codec_mode == BUZ_MODE_IDLE &&
2142                     fh->buffers.active == ZORAN_LOCKED)
2143                         zr36057_enable_jpg(zr, codec_mode);
2144
2145                 break;
2146
2147         default:
2148                 dprintk(1, KERN_ERR
2149                         "%s: VIDIOC_QBUF - unsupported type %d\n",
2150                         ZR_DEVNAME(zr), buf->type);
2151                 res = -EINVAL;
2152                 break;
2153         }
2154 qbuf_unlock_and_return:
2155         mutex_unlock(&zr->resource_lock);
2156
2157         return res;
2158 }
2159
2160 static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2161 {
2162         struct zoran_fh *fh = __fh;
2163         struct zoran *zr = fh->zr;
2164         int res = 0, buf_type, num = -1;        /* compiler borks here (?) */
2165
2166         mutex_lock(&zr->resource_lock);
2167
2168         switch (fh->map_mode) {
2169         case ZORAN_MAP_MODE_RAW:
2170                 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2171                         dprintk(1, KERN_ERR
2172                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2173                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2174                         res = -EINVAL;
2175                         goto dqbuf_unlock_and_return;
2176                 }
2177
2178                 num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
2179                 if (file->f_flags & O_NONBLOCK &&
2180                     zr->v4l_buffers.buffer[num].state != BUZ_STATE_DONE) {
2181                         res = -EAGAIN;
2182                         goto dqbuf_unlock_and_return;
2183                 }
2184                 res = v4l_sync(fh, num);
2185                 if (res)
2186                         goto dqbuf_unlock_and_return;
2187                 zr->v4l_sync_tail++;
2188                 res = zoran_v4l2_buffer_status(fh, buf, num);
2189                 break;
2190
2191         case ZORAN_MAP_MODE_JPG_REC:
2192         case ZORAN_MAP_MODE_JPG_PLAY:
2193         {
2194                 struct zoran_sync bs;
2195
2196                 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
2197                         buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2198                 else
2199                         buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2200
2201                 if (buf->type != buf_type) {
2202                         dprintk(1, KERN_ERR
2203                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2204                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2205                         res = -EINVAL;
2206                         goto dqbuf_unlock_and_return;
2207                 }
2208
2209                 num = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
2210
2211                 if (file->f_flags & O_NONBLOCK &&
2212                     zr->jpg_buffers.buffer[num].state != BUZ_STATE_DONE) {
2213                         res = -EAGAIN;
2214                         goto dqbuf_unlock_and_return;
2215                 }
2216                 bs.frame = 0; /* suppress compiler warning */
2217                 res = jpg_sync(fh, &bs);
2218                 if (res)
2219                         goto dqbuf_unlock_and_return;
2220                 res = zoran_v4l2_buffer_status(fh, buf, bs.frame);
2221                 break;
2222         }
2223
2224         default:
2225                 dprintk(1, KERN_ERR
2226                         "%s: VIDIOC_DQBUF - unsupported type %d\n",
2227                         ZR_DEVNAME(zr), buf->type);
2228                 res = -EINVAL;
2229                 break;
2230         }
2231 dqbuf_unlock_and_return:
2232         mutex_unlock(&zr->resource_lock);
2233
2234         return res;
2235 }
2236
2237 static int zoran_streamon(struct file *file, void *__fh, enum v4l2_buf_type type)
2238 {
2239         struct zoran_fh *fh = __fh;
2240         struct zoran *zr = fh->zr;
2241         int res = 0;
2242
2243         mutex_lock(&zr->resource_lock);
2244
2245         switch (fh->map_mode) {
2246         case ZORAN_MAP_MODE_RAW:        /* raw capture */
2247                 if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
2248                     fh->buffers.active != ZORAN_ACTIVE) {
2249                         res = -EBUSY;
2250                         goto strmon_unlock_and_return;
2251                 }
2252
2253                 zr->v4l_buffers.active = fh->buffers.active = ZORAN_LOCKED;
2254                 zr->v4l_settings = fh->v4l_settings;
2255
2256                 zr->v4l_sync_tail = zr->v4l_pend_tail;
2257                 if (!zr->v4l_memgrab_active &&
2258                     zr->v4l_pend_head != zr->v4l_pend_tail) {
2259                         zr36057_set_memgrab(zr, 1);
2260                 }
2261                 break;
2262
2263         case ZORAN_MAP_MODE_JPG_REC:
2264         case ZORAN_MAP_MODE_JPG_PLAY:
2265                 /* what is the codec mode right now? */
2266                 if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
2267                     fh->buffers.active != ZORAN_ACTIVE) {
2268                         res = -EBUSY;
2269                         goto strmon_unlock_and_return;
2270                 }
2271
2272                 zr->jpg_buffers.active = fh->buffers.active = ZORAN_LOCKED;
2273
2274                 if (zr->jpg_que_head != zr->jpg_que_tail) {
2275                         /* Start the jpeg codec when the first frame is queued  */
2276                         jpeg_start(zr);
2277                 }
2278                 break;
2279
2280         default:
2281                 dprintk(1,
2282                         KERN_ERR
2283                         "%s: VIDIOC_STREAMON - invalid map mode %d\n",
2284                         ZR_DEVNAME(zr), fh->map_mode);
2285                 res = -EINVAL;
2286                 break;
2287         }
2288 strmon_unlock_and_return:
2289         mutex_unlock(&zr->resource_lock);
2290
2291         return res;
2292 }
2293
2294 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type)
2295 {
2296         struct zoran_fh *fh = __fh;
2297         struct zoran *zr = fh->zr;
2298         int i, res = 0;
2299         unsigned long flags;
2300
2301         mutex_lock(&zr->resource_lock);
2302
2303         switch (fh->map_mode) {
2304         case ZORAN_MAP_MODE_RAW:        /* raw capture */
2305                 if (fh->buffers.active == ZORAN_FREE &&
2306                     zr->v4l_buffers.active != ZORAN_FREE) {
2307                         res = -EPERM;   /* stay off other's settings! */
2308                         goto strmoff_unlock_and_return;
2309                 }
2310                 if (zr->v4l_buffers.active == ZORAN_FREE)
2311                         goto strmoff_unlock_and_return;
2312
2313                 spin_lock_irqsave(&zr->spinlock, flags);
2314                 /* unload capture */
2315                 if (zr->v4l_memgrab_active) {
2316
2317                         zr36057_set_memgrab(zr, 0);
2318                 }
2319
2320                 for (i = 0; i < fh->buffers.num_buffers; i++)
2321                         zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER;
2322                 fh->buffers = zr->v4l_buffers;
2323
2324                 zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
2325
2326                 zr->v4l_grab_seq = 0;
2327                 zr->v4l_pend_head = zr->v4l_pend_tail = 0;
2328                 zr->v4l_sync_tail = 0;
2329
2330                 spin_unlock_irqrestore(&zr->spinlock, flags);
2331
2332                 break;
2333
2334         case ZORAN_MAP_MODE_JPG_REC:
2335         case ZORAN_MAP_MODE_JPG_PLAY:
2336                 if (fh->buffers.active == ZORAN_FREE &&
2337                     zr->jpg_buffers.active != ZORAN_FREE) {
2338                         res = -EPERM;   /* stay off other's settings! */
2339                         goto strmoff_unlock_and_return;
2340                 }
2341                 if (zr->jpg_buffers.active == ZORAN_FREE)
2342                         goto strmoff_unlock_and_return;
2343
2344                 res = jpg_qbuf(fh, -1,
2345                              (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
2346                              BUZ_MODE_MOTION_COMPRESS :
2347                              BUZ_MODE_MOTION_DECOMPRESS);
2348                 if (res)
2349                         goto strmoff_unlock_and_return;
2350                 break;
2351         default:
2352                 dprintk(1, KERN_ERR
2353                         "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
2354                         ZR_DEVNAME(zr), fh->map_mode);
2355                 res = -EINVAL;
2356                 break;
2357         }
2358 strmoff_unlock_and_return:
2359         mutex_unlock(&zr->resource_lock);
2360
2361         return res;
2362 }
2363
2364 static int zoran_queryctrl(struct file *file, void *__fh,
2365                                         struct v4l2_queryctrl *ctrl)
2366 {
2367         struct zoran_fh *fh = __fh;
2368         struct zoran *zr = fh->zr;
2369
2370         /* we only support hue/saturation/contrast/brightness */
2371         if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2372             ctrl->id > V4L2_CID_HUE)
2373                 return -EINVAL;
2374
2375         decoder_call(zr, core, queryctrl, ctrl);
2376
2377         return 0;
2378 }
2379
2380 static int zoran_g_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl)
2381 {
2382         struct zoran_fh *fh = __fh;
2383         struct zoran *zr = fh->zr;
2384
2385         /* we only support hue/saturation/contrast/brightness */
2386         if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2387             ctrl->id > V4L2_CID_HUE)
2388                 return -EINVAL;
2389
2390         mutex_lock(&zr->resource_lock);
2391         decoder_call(zr, core, g_ctrl, ctrl);
2392         mutex_unlock(&zr->resource_lock);
2393
2394         return 0;
2395 }
2396
2397 static int zoran_s_ctrl(struct file *file, void *__fh, struct v4l2_control *ctrl)
2398 {
2399         struct zoran_fh *fh = __fh;
2400         struct zoran *zr = fh->zr;
2401
2402         /* we only support hue/saturation/contrast/brightness */
2403         if (ctrl->id < V4L2_CID_BRIGHTNESS ||
2404             ctrl->id > V4L2_CID_HUE)
2405                 return -EINVAL;
2406
2407         mutex_lock(&zr->resource_lock);
2408         decoder_call(zr, core, s_ctrl, ctrl);
2409         mutex_unlock(&zr->resource_lock);
2410
2411         return 0;
2412 }
2413
2414 static int zoran_g_std(struct file *file, void *__fh, v4l2_std_id *std)
2415 {
2416         struct zoran_fh *fh = __fh;
2417         struct zoran *zr = fh->zr;
2418
2419         mutex_lock(&zr->resource_lock);
2420         *std = zr->norm;
2421         mutex_unlock(&zr->resource_lock);
2422         return 0;
2423 }
2424
2425 static int zoran_s_std(struct file *file, void *__fh, v4l2_std_id *std)
2426 {
2427         struct zoran_fh *fh = __fh;
2428         struct zoran *zr = fh->zr;
2429         int res = 0;
2430
2431         mutex_lock(&zr->resource_lock);
2432         res = zoran_set_norm(zr, *std);
2433         if (res)
2434                 goto sstd_unlock_and_return;
2435
2436         res = wait_grab_pending(zr);
2437 sstd_unlock_and_return:
2438         mutex_unlock(&zr->resource_lock);
2439         return res;
2440 }
2441
2442 static int zoran_enum_input(struct file *file, void *__fh,
2443                                  struct v4l2_input *inp)
2444 {
2445         struct zoran_fh *fh = __fh;
2446         struct zoran *zr = fh->zr;
2447
2448         if (inp->index >= zr->card.inputs)
2449                 return -EINVAL;
2450
2451         strncpy(inp->name, zr->card.input[inp->index].name,
2452                 sizeof(inp->name) - 1);
2453         inp->type = V4L2_INPUT_TYPE_CAMERA;
2454         inp->std = V4L2_STD_ALL;
2455
2456         /* Get status of video decoder */
2457         mutex_lock(&zr->resource_lock);
2458         decoder_call(zr, video, g_input_status, &inp->status);
2459         mutex_unlock(&zr->resource_lock);
2460         return 0;
2461 }
2462
2463 static int zoran_g_input(struct file *file, void *__fh, unsigned int *input)
2464 {
2465         struct zoran_fh *fh = __fh;
2466         struct zoran *zr = fh->zr;
2467
2468         mutex_lock(&zr->resource_lock);
2469         *input = zr->input;
2470         mutex_unlock(&zr->resource_lock);
2471
2472         return 0;
2473 }
2474
2475 static int zoran_s_input(struct file *file, void *__fh, unsigned int input)
2476 {
2477         struct zoran_fh *fh = __fh;
2478         struct zoran *zr = fh->zr;
2479         int res;
2480
2481         mutex_lock(&zr->resource_lock);
2482         res = zoran_set_input(zr, input);
2483         if (res)
2484                 goto sinput_unlock_and_return;
2485
2486         /* Make sure the changes come into effect */
2487         res = wait_grab_pending(zr);
2488 sinput_unlock_and_return:
2489         mutex_unlock(&zr->resource_lock);
2490         return res;
2491 }
2492
2493 static int zoran_enum_output(struct file *file, void *__fh,
2494                                   struct v4l2_output *outp)
2495 {
2496         if (outp->index != 0)
2497                 return -EINVAL;
2498
2499         outp->index = 0;
2500         outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
2501         strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
2502
2503         return 0;
2504 }
2505
2506 static int zoran_g_output(struct file *file, void *__fh, unsigned int *output)
2507 {
2508         *output = 0;
2509
2510         return 0;
2511 }
2512
2513 static int zoran_s_output(struct file *file, void *__fh, unsigned int output)
2514 {
2515         if (output != 0)
2516                 return -EINVAL;
2517
2518         return 0;
2519 }
2520
2521 /* cropping (sub-frame capture) */
2522 static int zoran_cropcap(struct file *file, void *__fh,
2523                                         struct v4l2_cropcap *cropcap)
2524 {
2525         struct zoran_fh *fh = __fh;
2526         struct zoran *zr = fh->zr;
2527         int type = cropcap->type, res = 0;
2528
2529         memset(cropcap, 0, sizeof(*cropcap));
2530         cropcap->type = type;
2531
2532         mutex_lock(&zr->resource_lock);
2533
2534         if (cropcap->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2535             (cropcap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2536              fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2537                 dprintk(1, KERN_ERR
2538                         "%s: VIDIOC_CROPCAP - subcapture only supported for compressed capture\n",
2539                         ZR_DEVNAME(zr));
2540                 res = -EINVAL;
2541                 goto cropcap_unlock_and_return;
2542         }
2543
2544         cropcap->bounds.top = cropcap->bounds.left = 0;
2545         cropcap->bounds.width = BUZ_MAX_WIDTH;
2546         cropcap->bounds.height = BUZ_MAX_HEIGHT;
2547         cropcap->defrect.top = cropcap->defrect.left = 0;
2548         cropcap->defrect.width = BUZ_MIN_WIDTH;
2549         cropcap->defrect.height = BUZ_MIN_HEIGHT;
2550 cropcap_unlock_and_return:
2551         mutex_unlock(&zr->resource_lock);
2552         return res;
2553 }
2554
2555 static int zoran_g_crop(struct file *file, void *__fh, struct v4l2_crop *crop)
2556 {
2557         struct zoran_fh *fh = __fh;
2558         struct zoran *zr = fh->zr;
2559         int type = crop->type, res = 0;
2560
2561         memset(crop, 0, sizeof(*crop));
2562         crop->type = type;
2563
2564         mutex_lock(&zr->resource_lock);
2565
2566         if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2567             (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2568              fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2569                 dprintk(1,
2570                         KERN_ERR
2571                         "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
2572                         ZR_DEVNAME(zr));
2573                 res = -EINVAL;
2574                 goto gcrop_unlock_and_return;
2575         }
2576
2577         crop->c.top = fh->jpg_settings.img_y;
2578         crop->c.left = fh->jpg_settings.img_x;
2579         crop->c.width = fh->jpg_settings.img_width;
2580         crop->c.height = fh->jpg_settings.img_height;
2581
2582 gcrop_unlock_and_return:
2583         mutex_unlock(&zr->resource_lock);
2584
2585         return res;
2586 }
2587
2588 static int zoran_s_crop(struct file *file, void *__fh, struct v4l2_crop *crop)
2589 {
2590         struct zoran_fh *fh = __fh;
2591         struct zoran *zr = fh->zr;
2592         int res = 0;
2593         struct zoran_jpg_settings settings;
2594
2595         settings = fh->jpg_settings;
2596
2597         mutex_lock(&zr->resource_lock);
2598
2599         if (fh->buffers.allocated) {
2600                 dprintk(1, KERN_ERR
2601                         "%s: VIDIOC_S_CROP - cannot change settings while active\n",
2602                         ZR_DEVNAME(zr));
2603                 res = -EBUSY;
2604                 goto scrop_unlock_and_return;
2605         }
2606
2607         if (crop->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2608             (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE ||
2609              fh->map_mode == ZORAN_MAP_MODE_RAW)) {
2610                 dprintk(1, KERN_ERR
2611                         "%s: VIDIOC_G_CROP - subcapture only supported for compressed capture\n",
2612                         ZR_DEVNAME(zr));
2613                 res = -EINVAL;
2614                 goto scrop_unlock_and_return;
2615         }
2616
2617         /* move into a form that we understand */
2618         settings.img_x = crop->c.left;
2619         settings.img_y = crop->c.top;
2620         settings.img_width = crop->c.width;
2621         settings.img_height = crop->c.height;
2622
2623         /* check validity */
2624         res = zoran_check_jpg_settings(zr, &settings, 0);
2625         if (res)
2626                 goto scrop_unlock_and_return;
2627
2628         /* accept */
2629         fh->jpg_settings = settings;
2630
2631 scrop_unlock_and_return:
2632         mutex_unlock(&zr->resource_lock);
2633         return res;
2634 }
2635
2636 static int zoran_g_jpegcomp(struct file *file, void *__fh,
2637                                         struct v4l2_jpegcompression *params)
2638 {
2639         struct zoran_fh *fh = __fh;
2640         struct zoran *zr = fh->zr;
2641         memset(params, 0, sizeof(*params));
2642
2643         mutex_lock(&zr->resource_lock);
2644
2645         params->quality = fh->jpg_settings.jpg_comp.quality;
2646         params->APPn = fh->jpg_settings.jpg_comp.APPn;
2647         memcpy(params->APP_data,
2648                fh->jpg_settings.jpg_comp.APP_data,
2649                fh->jpg_settings.jpg_comp.APP_len);
2650         params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2651         memcpy(params->COM_data,
2652                fh->jpg_settings.jpg_comp.COM_data,
2653                fh->jpg_settings.jpg_comp.COM_len);
2654         params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
2655         params->jpeg_markers =
2656             fh->jpg_settings.jpg_comp.jpeg_markers;
2657
2658         mutex_unlock(&zr->resource_lock);
2659
2660         return 0;
2661 }
2662
2663 static int zoran_s_jpegcomp(struct file *file, void *__fh,
2664                                         struct v4l2_jpegcompression *params)
2665 {
2666         struct zoran_fh *fh = __fh;
2667         struct zoran *zr = fh->zr;
2668         int res = 0;
2669         struct zoran_jpg_settings settings;
2670
2671         settings = fh->jpg_settings;
2672
2673         settings.jpg_comp = *params;
2674
2675         mutex_lock(&zr->resource_lock);
2676
2677         if (fh->buffers.active != ZORAN_FREE) {
2678                 dprintk(1, KERN_WARNING
2679                         "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
2680                         ZR_DEVNAME(zr));
2681                 res = -EBUSY;
2682                 goto sjpegc_unlock_and_return;
2683         }
2684
2685         res = zoran_check_jpg_settings(zr, &settings, 0);
2686         if (res)
2687                 goto sjpegc_unlock_and_return;
2688         if (!fh->buffers.allocated)
2689                 fh->buffers.buffer_size =
2690                         zoran_v4l2_calc_bufsize(&fh->jpg_settings);
2691         fh->jpg_settings.jpg_comp = *params = settings.jpg_comp;
2692 sjpegc_unlock_and_return:
2693         mutex_unlock(&zr->resource_lock);
2694
2695         return res;
2696 }
2697
2698 static unsigned int
2699 zoran_poll (struct file *file,
2700             poll_table  *wait)
2701 {
2702         struct zoran_fh *fh = file->private_data;
2703         struct zoran *zr = fh->zr;
2704         int res = 0, frame;
2705         unsigned long flags;
2706
2707         /* we should check whether buffers are ready to be synced on
2708          * (w/o waits - O_NONBLOCK) here
2709          * if ready for read (sync), return POLLIN|POLLRDNORM,
2710          * if ready for write (sync), return POLLOUT|POLLWRNORM,
2711          * if error, return POLLERR,
2712          * if no buffers queued or so, return POLLNVAL
2713          */
2714
2715         mutex_lock(&zr->resource_lock);
2716
2717         switch (fh->map_mode) {
2718         case ZORAN_MAP_MODE_RAW:
2719                 poll_wait(file, &zr->v4l_capq, wait);
2720                 frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
2721
2722                 spin_lock_irqsave(&zr->spinlock, flags);
2723                 dprintk(3,
2724                         KERN_DEBUG
2725                         "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
2726                         ZR_DEVNAME(zr), __func__,
2727                         "FAL"[fh->buffers.active], zr->v4l_sync_tail,
2728                         "UPMD"[zr->v4l_buffers.buffer[frame].state],
2729                         zr->v4l_pend_tail, zr->v4l_pend_head);
2730                 /* Process is the one capturing? */
2731                 if (fh->buffers.active != ZORAN_FREE &&
2732                     /* Buffer ready to DQBUF? */
2733                     zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
2734                         res = POLLIN | POLLRDNORM;
2735                 spin_unlock_irqrestore(&zr->spinlock, flags);
2736
2737                 break;
2738
2739         case ZORAN_MAP_MODE_JPG_REC:
2740         case ZORAN_MAP_MODE_JPG_PLAY:
2741                 poll_wait(file, &zr->jpg_capq, wait);
2742                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
2743
2744                 spin_lock_irqsave(&zr->spinlock, flags);
2745                 dprintk(3,
2746                         KERN_DEBUG
2747                         "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
2748                         ZR_DEVNAME(zr), __func__,
2749                         "FAL"[fh->buffers.active], zr->jpg_que_tail,
2750                         "UPMD"[zr->jpg_buffers.buffer[frame].state],
2751                         zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
2752                 if (fh->buffers.active != ZORAN_FREE &&
2753                     zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
2754                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
2755                                 res = POLLIN | POLLRDNORM;
2756                         else
2757                                 res = POLLOUT | POLLWRNORM;
2758                 }
2759                 spin_unlock_irqrestore(&zr->spinlock, flags);
2760
2761                 break;
2762
2763         default:
2764                 dprintk(1,
2765                         KERN_ERR
2766                         "%s: %s - internal error, unknown map_mode=%d\n",
2767                         ZR_DEVNAME(zr), __func__, fh->map_mode);
2768                 res = POLLNVAL;
2769         }
2770
2771         mutex_unlock(&zr->resource_lock);
2772
2773         return res;
2774 }
2775
2776
2777 /*
2778  * This maps the buffers to user space.
2779  *
2780  * Depending on the state of fh->map_mode
2781  * the V4L or the MJPEG buffers are mapped
2782  * per buffer or all together
2783  *
2784  * Note that we need to connect to some
2785  * unmap signal event to unmap the de-allocate
2786  * the buffer accordingly (zoran_vm_close())
2787  */
2788
2789 static void
2790 zoran_vm_open (struct vm_area_struct *vma)
2791 {
2792         struct zoran_mapping *map = vma->vm_private_data;
2793
2794         map->count++;
2795 }
2796
2797 static void
2798 zoran_vm_close (struct vm_area_struct *vma)
2799 {
2800         struct zoran_mapping *map = vma->vm_private_data;
2801         struct zoran_fh *fh = map->file->private_data;
2802         struct zoran *zr = fh->zr;
2803         int i;
2804
2805         if (--map->count > 0)
2806                 return;
2807
2808         dprintk(3, KERN_INFO "%s: %s - munmap(%s)\n", ZR_DEVNAME(zr),
2809                 __func__, mode_name(fh->map_mode));
2810
2811         for (i = 0; i < fh->buffers.num_buffers; i++) {
2812                 if (fh->buffers.buffer[i].map == map)
2813                         fh->buffers.buffer[i].map = NULL;
2814         }
2815         kfree(map);
2816
2817         /* Any buffers still mapped? */
2818         for (i = 0; i < fh->buffers.num_buffers; i++)
2819                 if (fh->buffers.buffer[i].map)
2820                         return;
2821
2822         dprintk(3, KERN_INFO "%s: %s - free %s buffers\n", ZR_DEVNAME(zr),
2823                 __func__, mode_name(fh->map_mode));
2824
2825         mutex_lock(&zr->resource_lock);
2826
2827         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
2828                 if (fh->buffers.active != ZORAN_FREE) {
2829                         unsigned long flags;
2830
2831                         spin_lock_irqsave(&zr->spinlock, flags);
2832                         zr36057_set_memgrab(zr, 0);
2833                         zr->v4l_buffers.allocated = 0;
2834                         zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
2835                         spin_unlock_irqrestore(&zr->spinlock, flags);
2836                 }
2837                 v4l_fbuffer_free(fh);
2838         } else {
2839                 if (fh->buffers.active != ZORAN_FREE) {
2840                         jpg_qbuf(fh, -1, zr->codec_mode);
2841                         zr->jpg_buffers.allocated = 0;
2842                         zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
2843                 }
2844                 jpg_fbuffer_free(fh);
2845         }
2846
2847         mutex_unlock(&zr->resource_lock);
2848 }
2849
2850 static const struct vm_operations_struct zoran_vm_ops = {
2851         .open = zoran_vm_open,
2852         .close = zoran_vm_close,
2853 };
2854
2855 static int
2856 zoran_mmap (struct file           *file,
2857             struct vm_area_struct *vma)
2858 {
2859         struct zoran_fh *fh = file->private_data;
2860         struct zoran *zr = fh->zr;
2861         unsigned long size = (vma->vm_end - vma->vm_start);
2862         unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
2863         int i, j;
2864         unsigned long page, start = vma->vm_start, todo, pos, fraglen;
2865         int first, last;
2866         struct zoran_mapping *map;
2867         int res = 0;
2868
2869         dprintk(3,
2870                 KERN_INFO "%s: %s(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
2871                 ZR_DEVNAME(zr), __func__,
2872                 mode_name(fh->map_mode), vma->vm_start, vma->vm_end, size);
2873
2874         if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
2875             !(vma->vm_flags & VM_WRITE)) {
2876                 dprintk(1,
2877                         KERN_ERR
2878                         "%s: %s - no MAP_SHARED/PROT_{READ,WRITE} given\n",
2879                         ZR_DEVNAME(zr), __func__);
2880                 return -EINVAL;
2881         }
2882
2883         mutex_lock(&zr->resource_lock);
2884
2885         if (!fh->buffers.allocated) {
2886                 dprintk(1,
2887                         KERN_ERR
2888                         "%s: %s(%s) - buffers not yet allocated\n",
2889                         ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode));
2890                 res = -ENOMEM;
2891                 goto mmap_unlock_and_return;
2892         }
2893
2894         first = offset / fh->buffers.buffer_size;
2895         last = first - 1 + size / fh->buffers.buffer_size;
2896         if (offset % fh->buffers.buffer_size != 0 ||
2897             size % fh->buffers.buffer_size != 0 || first < 0 ||
2898             last < 0 || first >= fh->buffers.num_buffers ||
2899             last >= fh->buffers.buffer_size) {
2900                 dprintk(1,
2901                         KERN_ERR
2902                         "%s: %s(%s) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
2903                         ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), offset, size,
2904                         fh->buffers.buffer_size,
2905                         fh->buffers.num_buffers);
2906                 res = -EINVAL;
2907                 goto mmap_unlock_and_return;
2908         }
2909
2910         /* Check if any buffers are already mapped */
2911         for (i = first; i <= last; i++) {
2912                 if (fh->buffers.buffer[i].map) {
2913                         dprintk(1,
2914                                 KERN_ERR
2915                                 "%s: %s(%s) - buffer %d already mapped\n",
2916                                 ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), i);
2917                         res = -EBUSY;
2918                         goto mmap_unlock_and_return;
2919                 }
2920         }
2921
2922         /* map these buffers */
2923         map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
2924         if (!map) {
2925                 res = -ENOMEM;
2926                 goto mmap_unlock_and_return;
2927         }
2928         map->file = file;
2929         map->count = 1;
2930
2931         vma->vm_ops = &zoran_vm_ops;
2932         vma->vm_flags |= VM_DONTEXPAND;
2933         vma->vm_private_data = map;
2934
2935         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
2936                 for (i = first; i <= last; i++) {
2937                         todo = size;
2938                         if (todo > fh->buffers.buffer_size)
2939                                 todo = fh->buffers.buffer_size;
2940                         page = fh->buffers.buffer[i].v4l.fbuffer_phys;
2941                         if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
2942                                                         todo, PAGE_SHARED)) {
2943                                 dprintk(1,
2944                                         KERN_ERR
2945                                         "%s: %s(V4L) - remap_pfn_range failed\n",
2946                                         ZR_DEVNAME(zr), __func__);
2947                                 res = -EAGAIN;
2948                                 goto mmap_unlock_and_return;
2949                         }
2950                         size -= todo;
2951                         start += todo;
2952                         fh->buffers.buffer[i].map = map;
2953                         if (size == 0)
2954                                 break;
2955                 }
2956         } else {
2957                 for (i = first; i <= last; i++) {
2958                         for (j = 0;
2959                              j < fh->buffers.buffer_size / PAGE_SIZE;
2960                              j++) {
2961                                 fraglen =
2962                                     (le32_to_cpu(fh->buffers.buffer[i].jpg.
2963                                      frag_tab[2 * j + 1]) & ~1) << 1;
2964                                 todo = size;
2965                                 if (todo > fraglen)
2966                                         todo = fraglen;
2967                                 pos =
2968                                     le32_to_cpu(fh->buffers.
2969                                     buffer[i].jpg.frag_tab[2 * j]);
2970                                 /* should just be pos on i386 */
2971                                 page = virt_to_phys(bus_to_virt(pos))
2972                                                                 >> PAGE_SHIFT;
2973                                 if (remap_pfn_range(vma, start, page,
2974                                                         todo, PAGE_SHARED)) {
2975                                         dprintk(1,
2976                                                 KERN_ERR
2977                                                 "%s: %s(V4L) - remap_pfn_range failed\n",
2978                                                 ZR_DEVNAME(zr), __func__);
2979                                         res = -EAGAIN;
2980                                         goto mmap_unlock_and_return;
2981                                 }
2982                                 size -= todo;
2983                                 start += todo;
2984                                 if (size == 0)
2985                                         break;
2986                                 if (le32_to_cpu(fh->buffers.buffer[i].jpg.
2987                                     frag_tab[2 * j + 1]) & 1)
2988                                         break;  /* was last fragment */
2989                         }
2990                         fh->buffers.buffer[i].map = map;
2991                         if (size == 0)
2992                                 break;
2993
2994                 }
2995         }
2996
2997 mmap_unlock_and_return:
2998         mutex_unlock(&zr->resource_lock);
2999
3000         return res;
3001 }
3002
3003 static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
3004         .vidioc_querycap                    = zoran_querycap,
3005         .vidioc_cropcap                     = zoran_cropcap,
3006         .vidioc_s_crop                      = zoran_s_crop,
3007         .vidioc_g_crop                      = zoran_g_crop,
3008         .vidioc_enum_input                  = zoran_enum_input,
3009         .vidioc_g_input                     = zoran_g_input,
3010         .vidioc_s_input                     = zoran_s_input,
3011         .vidioc_enum_output                 = zoran_enum_output,
3012         .vidioc_g_output                    = zoran_g_output,
3013         .vidioc_s_output                    = zoran_s_output,
3014         .vidioc_g_fbuf                      = zoran_g_fbuf,
3015         .vidioc_s_fbuf                      = zoran_s_fbuf,
3016         .vidioc_g_std                       = zoran_g_std,
3017         .vidioc_s_std                       = zoran_s_std,
3018         .vidioc_g_jpegcomp                  = zoran_g_jpegcomp,
3019         .vidioc_s_jpegcomp                  = zoran_s_jpegcomp,
3020         .vidioc_overlay                     = zoran_overlay,
3021         .vidioc_reqbufs                     = zoran_reqbufs,
3022         .vidioc_querybuf                    = zoran_querybuf,
3023         .vidioc_qbuf                        = zoran_qbuf,
3024         .vidioc_dqbuf                       = zoran_dqbuf,
3025         .vidioc_streamon                    = zoran_streamon,
3026         .vidioc_streamoff                   = zoran_streamoff,
3027         .vidioc_enum_fmt_vid_cap            = zoran_enum_fmt_vid_cap,
3028         .vidioc_enum_fmt_vid_out            = zoran_enum_fmt_vid_out,
3029         .vidioc_enum_fmt_vid_overlay        = zoran_enum_fmt_vid_overlay,
3030         .vidioc_g_fmt_vid_cap               = zoran_g_fmt_vid_cap,
3031         .vidioc_g_fmt_vid_out               = zoran_g_fmt_vid_out,
3032         .vidioc_g_fmt_vid_overlay           = zoran_g_fmt_vid_overlay,
3033         .vidioc_s_fmt_vid_cap               = zoran_s_fmt_vid_cap,
3034         .vidioc_s_fmt_vid_out               = zoran_s_fmt_vid_out,
3035         .vidioc_s_fmt_vid_overlay           = zoran_s_fmt_vid_overlay,
3036         .vidioc_try_fmt_vid_cap             = zoran_try_fmt_vid_cap,
3037         .vidioc_try_fmt_vid_out             = zoran_try_fmt_vid_out,
3038         .vidioc_try_fmt_vid_overlay         = zoran_try_fmt_vid_overlay,
3039         .vidioc_queryctrl                   = zoran_queryctrl,
3040         .vidioc_s_ctrl                      = zoran_s_ctrl,
3041         .vidioc_g_ctrl                      = zoran_g_ctrl,
3042 };
3043
3044 /* please use zr->resource_lock consistently and kill this wrapper */
3045 static long zoran_ioctl(struct file *file, unsigned int cmd,
3046                         unsigned long arg)
3047 {
3048         struct zoran_fh *fh = file->private_data;
3049         struct zoran *zr = fh->zr;
3050         int ret;
3051
3052         mutex_lock(&zr->other_lock);
3053         ret = video_ioctl2(file, cmd, arg);
3054         mutex_unlock(&zr->other_lock);
3055
3056         return ret;
3057 }
3058
3059 static const struct v4l2_file_operations zoran_fops = {
3060         .owner = THIS_MODULE,
3061         .open = zoran_open,
3062         .release = zoran_close,
3063         .unlocked_ioctl = zoran_ioctl,
3064         .read = zoran_read,
3065         .write = zoran_write,
3066         .mmap = zoran_mmap,
3067         .poll = zoran_poll,
3068 };
3069
3070 struct video_device zoran_template __devinitdata = {
3071         .name = ZORAN_NAME,
3072         .fops = &zoran_fops,
3073         .ioctl_ops = &zoran_ioctl_ops,
3074         .release = &zoran_vdev_release,
3075         .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
3076 };
3077