git.oblomov.eu Git - linux-2.6/blob - drivers/media/video/zoran/zoran_driver.c

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