drivers/staging/media/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
  43 #include <linux/init.h>
  44 #include <linux/module.h>
  45 #include <linux/delay.h>
  46 #include <linux/slab.h>
  47 #include <linux/pci.h>
  48 #include <linux/vmalloc.h>
  49 #include <linux/wait.h>
  50
  51 #include <linux/interrupt.h>
  52 #include <linux/i2c.h>
  53 #include <linux/i2c-algo-bit.h>
  54
  55 #include <linux/spinlock.h>
  56
  57 #include <linux/videodev2.h>
  58 #include <media/v4l2-common.h>
  59 #include <media/v4l2-ioctl.h>
  60 #include <media/v4l2-event.h>
  61 #include "videocodec.h"
  62
  63 #include <asm/byteorder.h>
  64 #include <asm/io.h>
  65 #include <linux/uaccess.h>
  66 #include <linux/proc_fs.h>
  67
  68 #include <linux/mutex.h>
  69 #include "zoran.h"
  70 #include "zoran_device.h"
  71 #include "zoran_card.h"
  72
  73
  74 const struct zoran_format zoran_formats[] = {
  75         {
  76                 .name = "15-bit RGB LE",
  77                 .fourcc = V4L2_PIX_FMT_RGB555,
  78                 .colorspace = V4L2_COLORSPACE_SRGB,
  79                 .depth = 15,
  80                 .flags = ZORAN_FORMAT_CAPTURE |
  81                          ZORAN_FORMAT_OVERLAY,
  82                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif|
  83                            ZR36057_VFESPFR_LittleEndian,
  84         }, {
  85                 .name = "15-bit RGB BE",
  86                 .fourcc = V4L2_PIX_FMT_RGB555X,
  87                 .colorspace = V4L2_COLORSPACE_SRGB,
  88                 .depth = 15,
  89                 .flags = ZORAN_FORMAT_CAPTURE |
  90                          ZORAN_FORMAT_OVERLAY,
  91                 .vfespfr = ZR36057_VFESPFR_RGB555|ZR36057_VFESPFR_ErrDif,
  92         }, {
  93                 .name = "16-bit RGB LE",
  94                 .fourcc = V4L2_PIX_FMT_RGB565,
  95                 .colorspace = V4L2_COLORSPACE_SRGB,
  96                 .depth = 16,
  97                 .flags = ZORAN_FORMAT_CAPTURE |
  98                          ZORAN_FORMAT_OVERLAY,
  99                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif|
 100                            ZR36057_VFESPFR_LittleEndian,
 101         }, {
 102                 .name = "16-bit RGB BE",
 103                 .fourcc = V4L2_PIX_FMT_RGB565X,
 104                 .colorspace = V4L2_COLORSPACE_SRGB,
 105                 .depth = 16,
 106                 .flags = ZORAN_FORMAT_CAPTURE |
 107                          ZORAN_FORMAT_OVERLAY,
 108                 .vfespfr = ZR36057_VFESPFR_RGB565|ZR36057_VFESPFR_ErrDif,
 109         }, {
 110                 .name = "24-bit RGB",
 111                 .fourcc = V4L2_PIX_FMT_BGR24,
 112                 .colorspace = V4L2_COLORSPACE_SRGB,
 113                 .depth = 24,
 114                 .flags = ZORAN_FORMAT_CAPTURE |
 115                          ZORAN_FORMAT_OVERLAY,
 116                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_Pack24,
 117         }, {
 118                 .name = "32-bit RGB LE",
 119                 .fourcc = V4L2_PIX_FMT_BGR32,
 120                 .colorspace = V4L2_COLORSPACE_SRGB,
 121                 .depth = 32,
 122                 .flags = ZORAN_FORMAT_CAPTURE |
 123                          ZORAN_FORMAT_OVERLAY,
 124                 .vfespfr = ZR36057_VFESPFR_RGB888|ZR36057_VFESPFR_LittleEndian,
 125         }, {
 126                 .name = "32-bit RGB BE",
 127                 .fourcc = V4L2_PIX_FMT_RGB32,
 128                 .colorspace = V4L2_COLORSPACE_SRGB,
 129                 .depth = 32,
 130                 .flags = ZORAN_FORMAT_CAPTURE |
 131                          ZORAN_FORMAT_OVERLAY,
 132                 .vfespfr = ZR36057_VFESPFR_RGB888,
 133         }, {
 134                 .name = "4:2:2, packed, YUYV",
 135                 .fourcc = V4L2_PIX_FMT_YUYV,
 136                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 137                 .depth = 16,
 138                 .flags = ZORAN_FORMAT_CAPTURE |
 139                          ZORAN_FORMAT_OVERLAY,
 140                 .vfespfr = ZR36057_VFESPFR_YUV422,
 141         }, {
 142                 .name = "4:2:2, packed, UYVY",
 143                 .fourcc = V4L2_PIX_FMT_UYVY,
 144                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 145                 .depth = 16,
 146                 .flags = ZORAN_FORMAT_CAPTURE |
 147                          ZORAN_FORMAT_OVERLAY,
 148                 .vfespfr = ZR36057_VFESPFR_YUV422|ZR36057_VFESPFR_LittleEndian,
 149         }, {
 150                 .name = "Hardware-encoded Motion-JPEG",
 151                 .fourcc = V4L2_PIX_FMT_MJPEG,
 152                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 153                 .depth = 0,
 154                 .flags = ZORAN_FORMAT_CAPTURE |
 155                          ZORAN_FORMAT_PLAYBACK |
 156                          ZORAN_FORMAT_COMPRESSED,
 157         }
 158 };
 159 #define NUM_FORMATS ARRAY_SIZE(zoran_formats)
 160
 161         /* small helper function for calculating buffersizes for v4l2
 162          * we calculate the nearest higher power-of-two, which
 163          * will be the recommended buffersize */
 164 static __u32
 165 zoran_v4l2_calc_bufsize (struct zoran_jpg_settings *settings)
 166 {
 167         __u8 div = settings->VerDcm * settings->HorDcm * settings->TmpDcm;
 168         __u32 num = (1024 * 512) / (div);
 169         __u32 result = 2;
 170
 171         num--;
 172         while (num) {
 173                 num >>= 1;
 174                 result <<= 1;
 175         }
 176
 177         if (result > jpg_bufsize)
 178                 return jpg_bufsize;
 179         if (result < 8192)
 180                 return 8192;
 181         return result;
 182 }
 183
 184 /* forward references */
 185 static void v4l_fbuffer_free(struct zoran_fh *fh);
 186 static void jpg_fbuffer_free(struct zoran_fh *fh);
 187
 188 /* Set mapping mode */
 189 static void map_mode_raw(struct zoran_fh *fh)
 190 {
 191         fh->map_mode = ZORAN_MAP_MODE_RAW;
 192         fh->buffers.buffer_size = v4l_bufsize;
 193         fh->buffers.num_buffers = v4l_nbufs;
 194 }
 195 static void map_mode_jpg(struct zoran_fh *fh, int play)
 196 {
 197         fh->map_mode = play ? ZORAN_MAP_MODE_JPG_PLAY : ZORAN_MAP_MODE_JPG_REC;
 198         fh->buffers.buffer_size = jpg_bufsize;
 199         fh->buffers.num_buffers = jpg_nbufs;
 200 }
 201 static inline const char *mode_name(enum zoran_map_mode mode)
 202 {
 203         return mode == ZORAN_MAP_MODE_RAW ? "V4L" : "JPG";
 204 }
 205
 206 /*
 207  *   Allocate the V4L grab buffers
 208  *
 209  *   These have to be pysically contiguous.
 210  */
 211
 212 static int v4l_fbuffer_alloc(struct zoran_fh *fh)
 213 {
 214         struct zoran *zr = fh->zr;
 215         int i, off;
 216         unsigned char *mem;
 217
 218         for (i = 0; i < fh->buffers.num_buffers; i++) {
 219                 if (fh->buffers.buffer[i].v4l.fbuffer)
 220                         dprintk(2,
 221                                 KERN_WARNING
 222                                 "%s: %s - buffer %d already allocated!?\n",
 223                                 ZR_DEVNAME(zr), __func__, i);
 224
 225                 //udelay(20);
 226                 mem = kmalloc(fh->buffers.buffer_size,
 227                               GFP_KERNEL | __GFP_NOWARN);
 228                 if (!mem) {
 229                         dprintk(1,
 230                                 KERN_ERR
 231                                 "%s: %s - kmalloc for V4L buf %d failed\n",
 232                                 ZR_DEVNAME(zr), __func__, i);
 233                         v4l_fbuffer_free(fh);
 234                         return -ENOBUFS;
 235                 }
 236                 fh->buffers.buffer[i].v4l.fbuffer = mem;
 237                 fh->buffers.buffer[i].v4l.fbuffer_phys = virt_to_phys(mem);
 238                 fh->buffers.buffer[i].v4l.fbuffer_bus = virt_to_bus(mem);
 239                 for (off = 0; off < fh->buffers.buffer_size;
 240                      off += PAGE_SIZE)
 241                         SetPageReserved(virt_to_page(mem + off));
 242                 dprintk(4,
 243                         KERN_INFO
 244                         "%s: %s - V4L frame %d mem %p (bus: 0x%llx)\n",
 245                         ZR_DEVNAME(zr), __func__, i, mem,
 246                         (unsigned long long)virt_to_bus(mem));
 247         }
 248
 249         fh->buffers.allocated = 1;
 250
 251         return 0;
 252 }
 253
 254 /* free the V4L grab buffers */
 255 static void v4l_fbuffer_free(struct zoran_fh *fh)
 256 {
 257         struct zoran *zr = fh->zr;
 258         int i, off;
 259         unsigned char *mem;
 260
 261         dprintk(4, KERN_INFO "%s: %s\n", ZR_DEVNAME(zr), __func__);
 262
 263         for (i = 0; i < fh->buffers.num_buffers; i++) {
 264                 if (!fh->buffers.buffer[i].v4l.fbuffer)
 265                         continue;
 266
 267                 mem = fh->buffers.buffer[i].v4l.fbuffer;
 268                 for (off = 0; off < fh->buffers.buffer_size;
 269                      off += PAGE_SIZE)
 270                         ClearPageReserved(virt_to_page(mem + off));
 271                 kfree(fh->buffers.buffer[i].v4l.fbuffer);
 272                 fh->buffers.buffer[i].v4l.fbuffer = NULL;
 273         }
 274
 275         fh->buffers.allocated = 0;
 276 }
 277
 278 /*
 279  *   Allocate the MJPEG grab buffers.
 280  *
 281  *   If a Natoma chipset is present and this is a revision 1 zr36057,
 282  *   each MJPEG buffer needs to be physically contiguous.
 283  *   (RJ: This statement is from Dave Perks' original driver,
 284  *   I could never check it because I have a zr36067)
 285  *
 286  *   RJ: The contents grab buffers needs never be accessed in the driver.
 287  *       Therefore there is no need to allocate them with vmalloc in order
 288  *       to get a contiguous virtual memory space.
 289  *       I don't understand why many other drivers first allocate them with
 290  *       vmalloc (which uses internally also get_zeroed_page, but delivers you
 291  *       virtual addresses) and then again have to make a lot of efforts
 292  *       to get the physical address.
 293  *
 294  *   Ben Capper:
 295  *       On big-endian architectures (such as ppc) some extra steps
 296  *       are needed. When reading and writing to the stat_com array
 297  *       and fragment buffers, the device expects to see little-
 298  *       endian values. The use of cpu_to_le32() and le32_to_cpu()
 299  *       in this function (and one or two others in zoran_device.c)
 300  *       ensure that these values are always stored in little-endian
 301  *       form, regardless of architecture. The zr36057 does Very Bad
 302  *       Things on big endian architectures if the stat_com array
 303  *       and fragment buffers are not little-endian.
 304  */
 305
 306 static int jpg_fbuffer_alloc(struct zoran_fh *fh)
 307 {
 308         struct zoran *zr = fh->zr;
 309         int i, j, off;
 310         u8 *mem;
 311
 312         for (i = 0; i < fh->buffers.num_buffers; i++) {
 313                 if (fh->buffers.buffer[i].jpg.frag_tab)
 314                         dprintk(2,
 315                                 KERN_WARNING
 316                                 "%s: %s - buffer %d already allocated!?\n",
 317                                 ZR_DEVNAME(zr), __func__, i);
 318
 319                 /* Allocate fragment table for this buffer */
 320
 321                 mem = (void *)get_zeroed_page(GFP_KERNEL);
 322                 if (!mem) {
 323                         dprintk(1,
 324                                 KERN_ERR
 325                                 "%s: %s - get_zeroed_page (frag_tab) failed for buffer %d\n",
 326                                 ZR_DEVNAME(zr), __func__, i);
 327                         jpg_fbuffer_free(fh);
 328                         return -ENOBUFS;
 329                 }
 330                 fh->buffers.buffer[i].jpg.frag_tab = (__le32 *)mem;
 331                 fh->buffers.buffer[i].jpg.frag_tab_bus = virt_to_bus(mem);
 332
 333                 if (fh->buffers.need_contiguous) {
 334                         mem = kmalloc(fh->buffers.buffer_size, GFP_KERNEL);
 335                         if (mem == NULL) {
 336                                 dprintk(1,
 337                                         KERN_ERR
 338                                         "%s: %s - kmalloc failed for buffer %d\n",
 339                                         ZR_DEVNAME(zr), __func__, i);
 340                                 jpg_fbuffer_free(fh);
 341                                 return -ENOBUFS;
 342                         }
 343                         fh->buffers.buffer[i].jpg.frag_tab[0] =
 344                                 cpu_to_le32(virt_to_bus(mem));
 345                         fh->buffers.buffer[i].jpg.frag_tab[1] =
 346                                 cpu_to_le32((fh->buffers.buffer_size >> 1) | 1);
 347                         for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
 348                                 SetPageReserved(virt_to_page(mem + off));
 349                 } else {
 350                         /* jpg_bufsize is already page aligned */
 351                         for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
 352                                 mem = (void *)get_zeroed_page(GFP_KERNEL);
 353                                 if (mem == NULL) {
 354                                         dprintk(1,
 355                                                 KERN_ERR
 356                                                 "%s: %s - get_zeroed_page failed for buffer %d\n",
 357                                                 ZR_DEVNAME(zr), __func__, i);
 358                                         jpg_fbuffer_free(fh);
 359                                         return -ENOBUFS;
 360                                 }
 361
 362                                 fh->buffers.buffer[i].jpg.frag_tab[2 * j] =
 363                                         cpu_to_le32(virt_to_bus(mem));
 364                                 fh->buffers.buffer[i].jpg.frag_tab[2 * j + 1] =
 365                                         cpu_to_le32((PAGE_SIZE >> 2) << 1);
 366                                 SetPageReserved(virt_to_page(mem));
 367                         }
 368
 369                         fh->buffers.buffer[i].jpg.frag_tab[2 * j - 1] |= cpu_to_le32(1);
 370                 }
 371         }
 372
 373         dprintk(4,
 374                 KERN_DEBUG "%s: %s - %d KB allocated\n",
 375                 ZR_DEVNAME(zr), __func__,
 376                 (fh->buffers.num_buffers * fh->buffers.buffer_size) >> 10);
 377
 378         fh->buffers.allocated = 1;
 379
 380         return 0;
 381 }
 382
 383 /* free the MJPEG grab buffers */
 384 static void jpg_fbuffer_free(struct zoran_fh *fh)
 385 {
 386         struct zoran *zr = fh->zr;
 387         int i, j, off;
 388         unsigned char *mem;
 389         __le32 frag_tab;
 390         struct zoran_buffer *buffer;
 391
 392         dprintk(4, KERN_DEBUG "%s: %s\n", ZR_DEVNAME(zr), __func__);
 393
 394         for (i = 0, buffer = &fh->buffers.buffer[0];
 395              i < fh->buffers.num_buffers; i++, buffer++) {
 396                 if (!buffer->jpg.frag_tab)
 397                         continue;
 398
 399                 if (fh->buffers.need_contiguous) {
 400                         frag_tab = buffer->jpg.frag_tab[0];
 401
 402                         if (frag_tab) {
 403                                 mem = bus_to_virt(le32_to_cpu(frag_tab));
 404                                 for (off = 0; off < fh->buffers.buffer_size; off += PAGE_SIZE)
 405                                         ClearPageReserved(virt_to_page(mem + off));
 406                                 kfree(mem);
 407                                 buffer->jpg.frag_tab[0] = 0;
 408                                 buffer->jpg.frag_tab[1] = 0;
 409                         }
 410                 } else {
 411                         for (j = 0; j < fh->buffers.buffer_size / PAGE_SIZE; j++) {
 412                                 frag_tab = buffer->jpg.frag_tab[2 * j];
 413
 414                                 if (!frag_tab)
 415                                         break;
 416                                 ClearPageReserved(virt_to_page(bus_to_virt(le32_to_cpu(frag_tab))));
 417                                 free_page((unsigned long)bus_to_virt(le32_to_cpu(frag_tab)));
 418                                 buffer->jpg.frag_tab[2 * j] = 0;
 419                                 buffer->jpg.frag_tab[2 * j + 1] = 0;
 420                         }
 421                 }
 422
 423                 free_page((unsigned long)buffer->jpg.frag_tab);
 424                 buffer->jpg.frag_tab = NULL;
 425         }
 426
 427         fh->buffers.allocated = 0;
 428 }
 429
 430 /*
 431  *   V4L Buffer grabbing
 432  */
 433
 434 static int
 435 zoran_v4l_set_format (struct zoran_fh           *fh,
 436                       int                        width,
 437                       int                        height,
 438                       const struct zoran_format *format)
 439 {
 440         struct zoran *zr = fh->zr;
 441         int bpp;
 442
 443         /* Check size and format of the grab wanted */
 444
 445         if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
 446             height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
 447                 dprintk(1,
 448                         KERN_ERR
 449                         "%s: %s - wrong frame size (%dx%d)\n",
 450                         ZR_DEVNAME(zr), __func__, width, height);
 451                 return -EINVAL;
 452         }
 453
 454         bpp = (format->depth + 7) / 8;
 455
 456         /* Check against available buffer size */
 457         if (height * width * bpp > fh->buffers.buffer_size) {
 458                 dprintk(1,
 459                         KERN_ERR
 460                         "%s: %s - video buffer size (%d kB) is too small\n",
 461                         ZR_DEVNAME(zr), __func__, fh->buffers.buffer_size >> 10);
 462                 return -EINVAL;
 463         }
 464
 465         /* The video front end needs 4-byte alinged line sizes */
 466
 467         if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
 468                 dprintk(1,
 469                         KERN_ERR
 470                         "%s: %s - wrong frame alignment\n",
 471                         ZR_DEVNAME(zr), __func__);
 472                 return -EINVAL;
 473         }
 474
 475         fh->v4l_settings.width = width;
 476         fh->v4l_settings.height = height;
 477         fh->v4l_settings.format = format;
 478         fh->v4l_settings.bytesperline = bpp * fh->v4l_settings.width;
 479
 480         return 0;
 481 }
 482
 483 static int zoran_v4l_queue_frame(struct zoran_fh *fh, int num)
 484 {
 485         struct zoran *zr = fh->zr;
 486         unsigned long flags;
 487         int res = 0;
 488
 489         if (!fh->buffers.allocated) {
 490                 dprintk(1,
 491                         KERN_ERR
 492                         "%s: %s - buffers not yet allocated\n",
 493                         ZR_DEVNAME(zr), __func__);
 494                 res = -ENOMEM;
 495         }
 496
 497         /* No grabbing outside the buffer range! */
 498         if (num >= fh->buffers.num_buffers || num < 0) {
 499                 dprintk(1,
 500                         KERN_ERR
 501                         "%s: %s - buffer %d is out of range\n",
 502                         ZR_DEVNAME(zr), __func__, num);
 503                 res = -EINVAL;
 504         }
 505
 506         spin_lock_irqsave(&zr->spinlock, flags);
 507
 508         if (fh->buffers.active == ZORAN_FREE) {
 509                 if (zr->v4l_buffers.active == ZORAN_FREE) {
 510                         zr->v4l_buffers = fh->buffers;
 511                         fh->buffers.active = ZORAN_ACTIVE;
 512                 } else {
 513                         dprintk(1,
 514                                 KERN_ERR
 515                                 "%s: %s - another session is already capturing\n",
 516                                 ZR_DEVNAME(zr), __func__);
 517                         res = -EBUSY;
 518                 }
 519         }
 520
 521         /* make sure a grab isn't going on currently with this buffer */
 522         if (!res) {
 523                 switch (zr->v4l_buffers.buffer[num].state) {
 524                 default:
 525                 case BUZ_STATE_PEND:
 526                         if (zr->v4l_buffers.active == ZORAN_FREE) {
 527                                 fh->buffers.active = ZORAN_FREE;
 528                                 zr->v4l_buffers.allocated = 0;
 529                         }
 530                         res = -EBUSY;   /* what are you doing? */
 531                         break;
 532                 case BUZ_STATE_DONE:
 533                         dprintk(2,
 534                                 KERN_WARNING
 535                                 "%s: %s - queueing buffer %d in state DONE!?\n",
 536                                 ZR_DEVNAME(zr), __func__, num);
 537                         /* fall through */
 538                 case BUZ_STATE_USER:
 539                         /* since there is at least one unused buffer there's room for at least
 540                          * one more pend[] entry */
 541                         zr->v4l_pend[zr->v4l_pend_head++ & V4L_MASK_FRAME] = num;
 542                         zr->v4l_buffers.buffer[num].state = BUZ_STATE_PEND;
 543                         zr->v4l_buffers.buffer[num].bs.length =
 544                             fh->v4l_settings.bytesperline *
 545                             zr->v4l_settings.height;
 546                         fh->buffers.buffer[num] = zr->v4l_buffers.buffer[num];
 547                         break;
 548                 }
 549         }
 550
 551         spin_unlock_irqrestore(&zr->spinlock, flags);
 552
 553         if (!res && zr->v4l_buffers.active == ZORAN_FREE)
 554                 zr->v4l_buffers.active = fh->buffers.active;
 555
 556         return res;
 557 }
 558
 559 /*
 560  * Sync on a V4L buffer
 561  */
 562
 563 static int v4l_sync(struct zoran_fh *fh, int frame)
 564 {
 565         struct zoran *zr = fh->zr;
 566         unsigned long flags;
 567
 568         if (fh->buffers.active == ZORAN_FREE) {
 569                 dprintk(1,
 570                         KERN_ERR
 571                         "%s: %s - no grab active for this session\n",
 572                         ZR_DEVNAME(zr), __func__);
 573                 return -EINVAL;
 574         }
 575
 576         /* check passed-in frame number */
 577         if (frame >= fh->buffers.num_buffers || frame < 0) {
 578                 dprintk(1,
 579                         KERN_ERR "%s: %s - frame %d is invalid\n",
 580                         ZR_DEVNAME(zr), __func__, frame);
 581                 return -EINVAL;
 582         }
 583
 584         /* Check if is buffer was queued at all */
 585         if (zr->v4l_buffers.buffer[frame].state == BUZ_STATE_USER) {
 586                 dprintk(1,
 587                         KERN_ERR
 588                         "%s: %s - attempt to sync on a buffer which was not queued?\n",
 589                         ZR_DEVNAME(zr), __func__);
 590                 return -EPROTO;
 591         }
 592
 593         mutex_unlock(&zr->lock);
 594         /* wait on this buffer to get ready */
 595         if (!wait_event_interruptible_timeout(zr->v4l_capq,
 596                 (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_PEND), 10*HZ)) {
 597                 mutex_lock(&zr->lock);
 598                 return -ETIME;
 599         }
 600         mutex_lock(&zr->lock);
 601         if (signal_pending(current))
 602                 return -ERESTARTSYS;
 603
 604         /* buffer should now be in BUZ_STATE_DONE */
 605         if (zr->v4l_buffers.buffer[frame].state != BUZ_STATE_DONE)
 606                 dprintk(2,
 607                         KERN_ERR "%s: %s - internal state error\n",
 608                         ZR_DEVNAME(zr), __func__);
 609
 610         zr->v4l_buffers.buffer[frame].state = BUZ_STATE_USER;
 611         fh->buffers.buffer[frame] = zr->v4l_buffers.buffer[frame];
 612
 613         spin_lock_irqsave(&zr->spinlock, flags);
 614
 615         /* Check if streaming capture has finished */
 616         if (zr->v4l_pend_tail == zr->v4l_pend_head) {
 617                 zr36057_set_memgrab(zr, 0);
 618                 if (zr->v4l_buffers.active == ZORAN_ACTIVE) {
 619                         fh->buffers.active = zr->v4l_buffers.active = ZORAN_FREE;
 620                         zr->v4l_buffers.allocated = 0;
 621                 }
 622         }
 623
 624         spin_unlock_irqrestore(&zr->spinlock, flags);
 625
 626         return 0;
 627 }
 628
 629 /*
 630  *   Queue a MJPEG buffer for capture/playback
 631  */
 632
 633 static int zoran_jpg_queue_frame(struct zoran_fh *fh, int num,
 634                                  enum zoran_codec_mode mode)
 635 {
 636         struct zoran *zr = fh->zr;
 637         unsigned long flags;
 638         int res = 0;
 639
 640         /* Check if buffers are allocated */
 641         if (!fh->buffers.allocated) {
 642                 dprintk(1,
 643                         KERN_ERR
 644                         "%s: %s - buffers not yet allocated\n",
 645                         ZR_DEVNAME(zr), __func__);
 646                 return -ENOMEM;
 647         }
 648
 649         /* No grabbing outside the buffer range! */
 650         if (num >= fh->buffers.num_buffers || num < 0) {
 651                 dprintk(1,
 652                         KERN_ERR
 653                         "%s: %s - buffer %d out of range\n",
 654                         ZR_DEVNAME(zr), __func__, num);
 655                 return -EINVAL;
 656         }
 657
 658         /* what is the codec mode right now? */
 659         if (zr->codec_mode == BUZ_MODE_IDLE) {
 660                 zr->jpg_settings = fh->jpg_settings;
 661         } else if (zr->codec_mode != mode) {
 662                 /* wrong codec mode active - invalid */
 663                 dprintk(1,
 664                         KERN_ERR
 665                         "%s: %s - codec in wrong mode\n",
 666                         ZR_DEVNAME(zr), __func__);
 667                 return -EINVAL;
 668         }
 669
 670         if (fh->buffers.active == ZORAN_FREE) {
 671                 if (zr->jpg_buffers.active == ZORAN_FREE) {
 672                         zr->jpg_buffers = fh->buffers;
 673                         fh->buffers.active = ZORAN_ACTIVE;
 674                 } else {
 675                         dprintk(1,
 676                                 KERN_ERR
 677                                 "%s: %s - another session is already capturing\n",
 678                                 ZR_DEVNAME(zr), __func__);
 679                         res = -EBUSY;
 680                 }
 681         }
 682
 683         if (!res && zr->codec_mode == BUZ_MODE_IDLE) {
 684                 /* Ok load up the jpeg codec */
 685                 zr36057_enable_jpg(zr, mode);
 686         }
 687
 688         spin_lock_irqsave(&zr->spinlock, flags);
 689
 690         if (!res) {
 691                 switch (zr->jpg_buffers.buffer[num].state) {
 692                 case BUZ_STATE_DONE:
 693                         dprintk(2,
 694                                 KERN_WARNING
 695                                 "%s: %s - queing frame in BUZ_STATE_DONE state!?\n",
 696                                 ZR_DEVNAME(zr), __func__);
 697                         /* fall through */
 698                 case BUZ_STATE_USER:
 699                         /* since there is at least one unused buffer there's room for at
 700                          *least one more pend[] entry */
 701                         zr->jpg_pend[zr->jpg_que_head++ & BUZ_MASK_FRAME] = num;
 702                         zr->jpg_buffers.buffer[num].state = BUZ_STATE_PEND;
 703                         fh->buffers.buffer[num] = zr->jpg_buffers.buffer[num];
 704                         zoran_feed_stat_com(zr);
 705                         break;
 706                 default:
 707                 case BUZ_STATE_DMA:
 708                 case BUZ_STATE_PEND:
 709                         if (zr->jpg_buffers.active == ZORAN_FREE) {
 710                                 fh->buffers.active = ZORAN_FREE;
 711                                 zr->jpg_buffers.allocated = 0;
 712                         }
 713                         res = -EBUSY;   /* what are you doing? */
 714                         break;
 715                 }
 716         }
 717
 718         spin_unlock_irqrestore(&zr->spinlock, flags);
 719
 720         if (!res && zr->jpg_buffers.active == ZORAN_FREE)
 721                 zr->jpg_buffers.active = fh->buffers.active;
 722
 723         return res;
 724 }
 725
 726 static int jpg_qbuf(struct zoran_fh *fh, int frame, enum zoran_codec_mode mode)
 727 {
 728         struct zoran *zr = fh->zr;
 729         int res = 0;
 730
 731         /* Does the user want to stop streaming? */
 732         if (frame < 0) {
 733                 if (zr->codec_mode == mode) {
 734                         if (fh->buffers.active == ZORAN_FREE) {
 735                                 dprintk(1,
 736                                         KERN_ERR
 737                                         "%s: %s(-1) - session not active\n",
 738                                         ZR_DEVNAME(zr), __func__);
 739                                 return -EINVAL;
 740                         }
 741                         fh->buffers.active = zr->jpg_buffers.active = ZORAN_FREE;
 742                         zr->jpg_buffers.allocated = 0;
 743                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
 744                         return 0;
 745                 } else {
 746                         dprintk(1,
 747                                 KERN_ERR
 748                                 "%s: %s - stop streaming but not in streaming mode\n",
 749                                 ZR_DEVNAME(zr), __func__);
 750                         return -EINVAL;
 751                 }
 752         }
 753
 754         if ((res = zoran_jpg_queue_frame(fh, frame, mode)))
 755                 return res;
 756
 757         /* Start the jpeg codec when the first frame is queued  */
 758         if (!res && zr->jpg_que_head == 1)
 759                 jpeg_start(zr);
 760
 761         return res;
 762 }
 763
 764 /*
 765  *   Sync on a MJPEG buffer
 766  */
 767
 768 static int jpg_sync(struct zoran_fh *fh, struct zoran_sync *bs)
 769 {
 770         struct zoran *zr = fh->zr;
 771         unsigned long flags;
 772         int frame;
 773
 774         if (fh->buffers.active == ZORAN_FREE) {
 775                 dprintk(1,
 776                         KERN_ERR
 777                         "%s: %s - capture is not currently active\n",
 778                         ZR_DEVNAME(zr), __func__);
 779                 return -EINVAL;
 780         }
 781         if (zr->codec_mode != BUZ_MODE_MOTION_DECOMPRESS &&
 782             zr->codec_mode != BUZ_MODE_MOTION_COMPRESS) {
 783                 dprintk(1,
 784                         KERN_ERR
 785                         "%s: %s - codec not in streaming mode\n",
 786                         ZR_DEVNAME(zr), __func__);
 787                 return -EINVAL;
 788         }
 789         mutex_unlock(&zr->lock);
 790         if (!wait_event_interruptible_timeout(zr->jpg_capq,
 791                         (zr->jpg_que_tail != zr->jpg_dma_tail ||
 792                          zr->jpg_dma_tail == zr->jpg_dma_head),
 793                         10*HZ)) {
 794                 int isr;
 795
 796                 btand(~ZR36057_JMC_Go_en, ZR36057_JMC);
 797                 udelay(1);
 798                 zr->codec->control(zr->codec, CODEC_G_STATUS,
 799                                            sizeof(isr), &isr);
 800                 mutex_lock(&zr->lock);
 801                 dprintk(1,
 802                         KERN_ERR
 803                         "%s: %s - timeout: codec isr=0x%02x\n",
 804                         ZR_DEVNAME(zr), __func__, isr);
 805
 806                 return -ETIME;
 807
 808         }
 809         mutex_lock(&zr->lock);
 810         if (signal_pending(current))
 811                 return -ERESTARTSYS;
 812
 813         spin_lock_irqsave(&zr->spinlock, flags);
 814
 815         if (zr->jpg_dma_tail != zr->jpg_dma_head)
 816                 frame = zr->jpg_pend[zr->jpg_que_tail++ & BUZ_MASK_FRAME];
 817         else
 818                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
 819
 820         /* buffer should now be in BUZ_STATE_DONE */
 821         if (zr->jpg_buffers.buffer[frame].state != BUZ_STATE_DONE)
 822                 dprintk(2,
 823                         KERN_ERR "%s: %s - internal state error\n",
 824                         ZR_DEVNAME(zr), __func__);
 825
 826         *bs = zr->jpg_buffers.buffer[frame].bs;
 827         bs->frame = frame;
 828         zr->jpg_buffers.buffer[frame].state = BUZ_STATE_USER;
 829         fh->buffers.buffer[frame] = zr->jpg_buffers.buffer[frame];
 830
 831         spin_unlock_irqrestore(&zr->spinlock, flags);
 832
 833         return 0;
 834 }
 835
 836 static void zoran_open_init_session(struct zoran_fh *fh)
 837 {
 838         int i;
 839         struct zoran *zr = fh->zr;
 840
 841         /* Per default, map the V4L Buffers */
 842         map_mode_raw(fh);
 843
 844         /* take over the card's current settings */
 845         fh->overlay_settings = zr->overlay_settings;
 846         fh->overlay_settings.is_set = 0;
 847         fh->overlay_settings.format = zr->overlay_settings.format;
 848         fh->overlay_active = ZORAN_FREE;
 849
 850         /* v4l settings */
 851         fh->v4l_settings = zr->v4l_settings;
 852         /* jpg settings */
 853         fh->jpg_settings = zr->jpg_settings;
 854
 855         /* buffers */
 856         memset(&fh->buffers, 0, sizeof(fh->buffers));
 857         for (i = 0; i < MAX_FRAME; i++) {
 858                 fh->buffers.buffer[i].state = BUZ_STATE_USER;   /* nothing going on */
 859                 fh->buffers.buffer[i].bs.frame = i;
 860         }
 861         fh->buffers.allocated = 0;
 862         fh->buffers.active = ZORAN_FREE;
 863 }
 864
 865 static void zoran_close_end_session(struct zoran_fh *fh)
 866 {
 867         struct zoran *zr = fh->zr;
 868
 869         /* overlay */
 870         if (fh->overlay_active != ZORAN_FREE) {
 871                 fh->overlay_active = zr->overlay_active = ZORAN_FREE;
 872                 zr->v4l_overlay_active = 0;
 873                 if (!zr->v4l_memgrab_active)
 874                         zr36057_overlay(zr, 0);
 875                 zr->overlay_mask = NULL;
 876         }
 877
 878         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
 879                 /* v4l capture */
 880                 if (fh->buffers.active != ZORAN_FREE) {
 881                         unsigned long flags;
 882
 883                         spin_lock_irqsave(&zr->spinlock, flags);
 884                         zr36057_set_memgrab(zr, 0);
 885                         zr->v4l_buffers.allocated = 0;
 886                         zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
 887                         spin_unlock_irqrestore(&zr->spinlock, flags);
 888                 }
 889
 890                 /* v4l buffers */
 891                 if (fh->buffers.allocated)
 892                         v4l_fbuffer_free(fh);
 893         } else {
 894                 /* jpg capture */
 895                 if (fh->buffers.active != ZORAN_FREE) {
 896                         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
 897                         zr->jpg_buffers.allocated = 0;
 898                         zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
 899                 }
 900
 901                 /* jpg buffers */
 902                 if (fh->buffers.allocated)
 903                         jpg_fbuffer_free(fh);
 904         }
 905 }
 906
 907 /*
 908  *   Open a zoran card. Right now the flags stuff is just playing
 909  */
 910
 911 static int zoran_open(struct file *file)
 912 {
 913         struct zoran *zr = video_drvdata(file);
 914         struct zoran_fh *fh;
 915         int res, first_open = 0;
 916
 917         dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(-)=%d\n",
 918                 ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user + 1);
 919
 920         mutex_lock(&zr->lock);
 921
 922         if (zr->user >= 2048) {
 923                 dprintk(1, KERN_ERR "%s: too many users (%d) on device\n",
 924                         ZR_DEVNAME(zr), zr->user);
 925                 res = -EBUSY;
 926                 goto fail_unlock;
 927         }
 928
 929         /* now, create the open()-specific file_ops struct */
 930         fh = kzalloc(sizeof(struct zoran_fh), GFP_KERNEL);
 931         if (!fh) {
 932                 dprintk(1,
 933                         KERN_ERR
 934                         "%s: %s - allocation of zoran_fh failed\n",
 935                         ZR_DEVNAME(zr), __func__);
 936                 res = -ENOMEM;
 937                 goto fail_unlock;
 938         }
 939         v4l2_fh_init(&fh->fh, video_devdata(file));
 940
 941         /* used to be BUZ_MAX_WIDTH/HEIGHT, but that gives overflows
 942          * on norm-change! */
 943         fh->overlay_mask =
 944             kmalloc(array3_size((768 + 31) / 32, 576, 4), GFP_KERNEL);
 945         if (!fh->overlay_mask) {
 946                 dprintk(1,
 947                         KERN_ERR
 948                         "%s: %s - allocation of overlay_mask failed\n",
 949                         ZR_DEVNAME(zr), __func__);
 950                 res = -ENOMEM;
 951                 goto fail_fh;
 952         }
 953
 954         if (zr->user++ == 0)
 955                 first_open = 1;
 956
 957         /* default setup - TODO: look at flags */
 958         if (first_open) {       /* First device open */
 959                 zr36057_restart(zr);
 960                 zoran_open_init_params(zr);
 961                 zoran_init_hardware(zr);
 962
 963                 btor(ZR36057_ICR_IntPinEn, ZR36057_ICR);
 964         }
 965
 966         /* set file_ops stuff */
 967         file->private_data = fh;
 968         fh->zr = zr;
 969         zoran_open_init_session(fh);
 970         v4l2_fh_add(&fh->fh);
 971         mutex_unlock(&zr->lock);
 972
 973         return 0;
 974
 975 fail_fh:
 976         v4l2_fh_exit(&fh->fh);
 977         kfree(fh);
 978 fail_unlock:
 979         mutex_unlock(&zr->lock);
 980
 981         dprintk(2, KERN_INFO "%s: open failed (%d), users(-)=%d\n",
 982                 ZR_DEVNAME(zr), res, zr->user);
 983
 984         return res;
 985 }
 986
 987 static int
 988 zoran_close(struct file  *file)
 989 {
 990         struct zoran_fh *fh = file->private_data;
 991         struct zoran *zr = fh->zr;
 992
 993         dprintk(2, KERN_INFO "%s: %s(%s, pid=[%d]), users(+)=%d\n",
 994                 ZR_DEVNAME(zr), __func__, current->comm, task_pid_nr(current), zr->user - 1);
 995
 996         /* kernel locks (fs/device.c), so don't do that ourselves
 997          * (prevents deadlocks) */
 998         mutex_lock(&zr->lock);
 999
1000         zoran_close_end_session(fh);
1001
1002         if (zr->user-- == 1) {  /* Last process */
1003                 /* Clean up JPEG process */
1004                 wake_up_interruptible(&zr->jpg_capq);
1005                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
1006                 zr->jpg_buffers.allocated = 0;
1007                 zr->jpg_buffers.active = ZORAN_FREE;
1008
1009                 /* disable interrupts */
1010                 btand(~ZR36057_ICR_IntPinEn, ZR36057_ICR);
1011
1012                 if (zr36067_debug > 1)
1013                         print_interrupts(zr);
1014
1015                 /* Overlay off */
1016                 zr->v4l_overlay_active = 0;
1017                 zr36057_overlay(zr, 0);
1018                 zr->overlay_mask = NULL;
1019
1020                 /* capture off */
1021                 wake_up_interruptible(&zr->v4l_capq);
1022                 zr36057_set_memgrab(zr, 0);
1023                 zr->v4l_buffers.allocated = 0;
1024                 zr->v4l_buffers.active = ZORAN_FREE;
1025                 zoran_set_pci_master(zr, 0);
1026
1027                 if (!pass_through) {    /* Switch to color bar */
1028                         decoder_call(zr, video, s_stream, 0);
1029                         encoder_call(zr, video, s_routing, 2, 0, 0);
1030                 }
1031         }
1032         mutex_unlock(&zr->lock);
1033
1034         v4l2_fh_del(&fh->fh);
1035         v4l2_fh_exit(&fh->fh);
1036         kfree(fh->overlay_mask);
1037         kfree(fh);
1038
1039         dprintk(4, KERN_INFO "%s: %s done\n", ZR_DEVNAME(zr), __func__);
1040
1041         return 0;
1042 }
1043
1044 static int setup_fbuffer(struct zoran_fh *fh,
1045                void                      *base,
1046                const struct zoran_format *fmt,
1047                int                        width,
1048                int                        height,
1049                int                        bytesperline)
1050 {
1051         struct zoran *zr = fh->zr;
1052
1053         /* (Ronald) v4l/v4l2 guidelines */
1054         if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO))
1055                 return -EPERM;
1056
1057         /* Don't allow frame buffer overlay if PCI or AGP is buggy, or on
1058            ALi Magik (that needs very low latency while the card needs a
1059            higher value always) */
1060
1061         if (pci_pci_problems & (PCIPCI_FAIL | PCIAGP_FAIL | PCIPCI_ALIMAGIK))
1062                 return -ENXIO;
1063
1064         /* we need a bytesperline value, even if not given */
1065         if (!bytesperline)
1066                 bytesperline = width * ((fmt->depth + 7) & ~7) / 8;
1067
1068 #if 0
1069         if (zr->overlay_active) {
1070                 /* dzjee... stupid users... don't even bother to turn off
1071                  * overlay before changing the memory location...
1072                  * normally, we would return errors here. However, one of
1073                  * the tools that does this is... xawtv! and since xawtv
1074                  * is used by +/- 99% of the users, we'd rather be user-
1075                  * friendly and silently do as if nothing went wrong */
1076                 dprintk(3,
1077                         KERN_ERR
1078                         "%s: %s - forced overlay turnoff because framebuffer changed\n",
1079                         ZR_DEVNAME(zr), __func__);
1080                 zr36057_overlay(zr, 0);
1081         }
1082 #endif
1083
1084         if (!(fmt->flags & ZORAN_FORMAT_OVERLAY)) {
1085                 dprintk(1,
1086                         KERN_ERR
1087                         "%s: %s - no valid overlay format given\n",
1088                         ZR_DEVNAME(zr), __func__);
1089                 return -EINVAL;
1090         }
1091         if (height <= 0 || width <= 0 || bytesperline <= 0) {
1092                 dprintk(1,
1093                         KERN_ERR
1094                         "%s: %s - invalid height/width/bpl value (%d|%d|%d)\n",
1095                         ZR_DEVNAME(zr), __func__, width, height, bytesperline);
1096                 return -EINVAL;
1097         }
1098         if (bytesperline & 3) {
1099                 dprintk(1,
1100                         KERN_ERR
1101                         "%s: %s - bytesperline (%d) must be 4-byte aligned\n",
1102                         ZR_DEVNAME(zr), __func__, bytesperline);
1103                 return -EINVAL;
1104         }
1105
1106         zr->vbuf_base = (void *) ((unsigned long) base & ~3);
1107         zr->vbuf_height = height;
1108         zr->vbuf_width = width;
1109         zr->vbuf_depth = fmt->depth;
1110         zr->overlay_settings.format = fmt;
1111         zr->vbuf_bytesperline = bytesperline;
1112
1113         /* The user should set new window parameters */
1114         zr->overlay_settings.is_set = 0;
1115
1116         return 0;
1117 }
1118
1119
1120 static int setup_window(struct zoran_fh *fh,
1121                         int x,
1122                         int y,
1123                         int width,
1124                         int height,
1125                         struct v4l2_clip __user *clips,
1126                         unsigned int clipcount,
1127                         void __user *bitmap)
1128 {
1129         struct zoran *zr = fh->zr;
1130         struct v4l2_clip *vcp = NULL;
1131         int on, end;
1132
1133
1134         if (!zr->vbuf_base) {
1135                 dprintk(1,
1136                         KERN_ERR
1137                         "%s: %s - frame buffer has to be set first\n",
1138                         ZR_DEVNAME(zr), __func__);
1139                 return -EINVAL;
1140         }
1141
1142         if (!fh->overlay_settings.format) {
1143                 dprintk(1,
1144                         KERN_ERR
1145                         "%s: %s - no overlay format set\n",
1146                         ZR_DEVNAME(zr), __func__);
1147                 return -EINVAL;
1148         }
1149
1150         if (clipcount > 2048) {
1151                 dprintk(1,
1152                         KERN_ERR
1153                         "%s: %s - invalid clipcount\n",
1154                          ZR_DEVNAME(zr), __func__);
1155                 return -EINVAL;
1156         }
1157
1158         /*
1159          * The video front end needs 4-byte alinged line sizes, we correct that
1160          * silently here if necessary
1161          */
1162         if (zr->vbuf_depth == 15 || zr->vbuf_depth == 16) {
1163                 end = (x + width) & ~1; /* round down */
1164                 x = (x + 1) & ~1;       /* round up */
1165                 width = end - x;
1166         }
1167
1168         if (zr->vbuf_depth == 24) {
1169                 end = (x + width) & ~3; /* round down */
1170                 x = (x + 3) & ~3;       /* round up */
1171                 width = end - x;
1172         }
1173
1174         if (width > BUZ_MAX_WIDTH)
1175                 width = BUZ_MAX_WIDTH;
1176         if (height > BUZ_MAX_HEIGHT)
1177                 height = BUZ_MAX_HEIGHT;
1178
1179         /* Check for invalid parameters */
1180         if (width < BUZ_MIN_WIDTH || height < BUZ_MIN_HEIGHT ||
1181             width > BUZ_MAX_WIDTH || height > BUZ_MAX_HEIGHT) {
1182                 dprintk(1,
1183                         KERN_ERR
1184                         "%s: %s - width = %d or height = %d invalid\n",
1185                         ZR_DEVNAME(zr), __func__, width, height);
1186                 return -EINVAL;
1187         }
1188
1189         fh->overlay_settings.x = x;
1190         fh->overlay_settings.y = y;
1191         fh->overlay_settings.width = width;
1192         fh->overlay_settings.height = height;
1193         fh->overlay_settings.clipcount = clipcount;
1194
1195         /*
1196          * If an overlay is running, we have to switch it off
1197          * and switch it on again in order to get the new settings in effect.
1198          *
1199          * We also want to avoid that the overlay mask is written
1200          * when an overlay is running.
1201          */
1202
1203         on = zr->v4l_overlay_active && !zr->v4l_memgrab_active &&
1204             zr->overlay_active != ZORAN_FREE &&
1205             fh->overlay_active != ZORAN_FREE;
1206         if (on)
1207                 zr36057_overlay(zr, 0);
1208
1209         /*
1210          *   Write the overlay mask if clips are wanted.
1211          *   We prefer a bitmap.
1212          */
1213         if (bitmap) {
1214                 /* fake value - it just means we want clips */
1215                 fh->overlay_settings.clipcount = 1;
1216
1217                 if (copy_from_user(fh->overlay_mask, bitmap,
1218                                    (width * height + 7) / 8)) {
1219                         return -EFAULT;
1220                 }
1221         } else if (clipcount) {
1222                 /* write our own bitmap from the clips */
1223                 vcp = vmalloc(array_size(sizeof(struct v4l2_clip),
1224                                          clipcount + 4));
1225                 if (vcp == NULL) {
1226                         dprintk(1,
1227                                 KERN_ERR
1228                                 "%s: %s - Alloc of clip mask failed\n",
1229                                 ZR_DEVNAME(zr), __func__);
1230                         return -ENOMEM;
1231                 }
1232                 if (copy_from_user
1233                     (vcp, clips, sizeof(struct v4l2_clip) * clipcount)) {
1234                         vfree(vcp);
1235                         return -EFAULT;
1236                 }
1237                 write_overlay_mask(fh, vcp, clipcount);
1238                 vfree(vcp);
1239         }
1240
1241         fh->overlay_settings.is_set = 1;
1242         if (fh->overlay_active != ZORAN_FREE &&
1243             zr->overlay_active != ZORAN_FREE)
1244                 zr->overlay_settings = fh->overlay_settings;
1245
1246         if (on)
1247                 zr36057_overlay(zr, 1);
1248
1249         /* Make sure the changes come into effect */
1250         return wait_grab_pending(zr);
1251 }
1252
1253 static int setup_overlay(struct zoran_fh *fh, int on)
1254 {
1255         struct zoran *zr = fh->zr;
1256
1257         /* If there is nothing to do, return immediately */
1258         if ((on && fh->overlay_active != ZORAN_FREE) ||
1259             (!on && fh->overlay_active == ZORAN_FREE))
1260                 return 0;
1261
1262         /* check whether we're touching someone else's overlay */
1263         if (on && zr->overlay_active != ZORAN_FREE &&
1264             fh->overlay_active == ZORAN_FREE) {
1265                 dprintk(1,
1266                         KERN_ERR
1267                         "%s: %s - overlay is already active for another session\n",
1268                         ZR_DEVNAME(zr), __func__);
1269                 return -EBUSY;
1270         }
1271         if (!on && zr->overlay_active != ZORAN_FREE &&
1272             fh->overlay_active == ZORAN_FREE) {
1273                 dprintk(1,
1274                         KERN_ERR
1275                         "%s: %s - you cannot cancel someone else's session\n",
1276                         ZR_DEVNAME(zr), __func__);
1277                 return -EPERM;
1278         }
1279
1280         if (on == 0) {
1281                 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1282                 zr->v4l_overlay_active = 0;
1283                 /* When a grab is running, the video simply
1284                  * won't be switched on any more */
1285                 if (!zr->v4l_memgrab_active)
1286                         zr36057_overlay(zr, 0);
1287                 zr->overlay_mask = NULL;
1288         } else {
1289                 if (!zr->vbuf_base || !fh->overlay_settings.is_set) {
1290                         dprintk(1,
1291                                 KERN_ERR
1292                                 "%s: %s - buffer or window not set\n",
1293                                 ZR_DEVNAME(zr), __func__);
1294                         return -EINVAL;
1295                 }
1296                 if (!fh->overlay_settings.format) {
1297                         dprintk(1,
1298                                 KERN_ERR
1299                                 "%s: %s - no overlay format set\n",
1300                                 ZR_DEVNAME(zr), __func__);
1301                         return -EINVAL;
1302                 }
1303                 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1304                 zr->v4l_overlay_active = 1;
1305                 zr->overlay_mask = fh->overlay_mask;
1306                 zr->overlay_settings = fh->overlay_settings;
1307                 if (!zr->v4l_memgrab_active)
1308                         zr36057_overlay(zr, 1);
1309                 /* When a grab is running, the video will be
1310                  * switched on when grab is finished */
1311         }
1312
1313         /* Make sure the changes come into effect */
1314         return wait_grab_pending(zr);
1315 }
1316
1317 /* get the status of a buffer in the clients buffer queue */
1318 static int zoran_v4l2_buffer_status(struct zoran_fh *fh,
1319                                     struct v4l2_buffer *buf, int num)
1320 {
1321         struct zoran *zr = fh->zr;
1322         unsigned long flags;
1323
1324         buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1325
1326         switch (fh->map_mode) {
1327         case ZORAN_MAP_MODE_RAW:
1328                 /* check range */
1329                 if (num < 0 || num >= fh->buffers.num_buffers ||
1330                     !fh->buffers.allocated) {
1331                         dprintk(1,
1332                                 KERN_ERR
1333                                 "%s: %s - wrong number or buffers not allocated\n",
1334                                 ZR_DEVNAME(zr), __func__);
1335                         return -EINVAL;
1336                 }
1337
1338                 spin_lock_irqsave(&zr->spinlock, flags);
1339                 dprintk(3,
1340                         KERN_DEBUG
1341                         "%s: %s() - raw active=%c, buffer %d: state=%c, map=%c\n",
1342                         ZR_DEVNAME(zr), __func__,
1343                         "FAL"[fh->buffers.active], num,
1344                         "UPMD"[zr->v4l_buffers.buffer[num].state],
1345                         fh->buffers.buffer[num].map ? 'Y' : 'N');
1346                 spin_unlock_irqrestore(&zr->spinlock, flags);
1347
1348                 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1349                 buf->length = fh->buffers.buffer_size;
1350
1351                 /* get buffer */
1352                 buf->bytesused = fh->buffers.buffer[num].bs.length;
1353                 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
1354                     fh->buffers.buffer[num].state == BUZ_STATE_USER) {
1355                         buf->sequence = fh->buffers.buffer[num].bs.seq;
1356                         buf->flags |= V4L2_BUF_FLAG_DONE;
1357                         buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
1358                 } else {
1359                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1360                 }
1361
1362                 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1363                         buf->field = V4L2_FIELD_TOP;
1364                 else
1365                         buf->field = V4L2_FIELD_INTERLACED;
1366
1367                 break;
1368
1369         case ZORAN_MAP_MODE_JPG_REC:
1370         case ZORAN_MAP_MODE_JPG_PLAY:
1371
1372                 /* check range */
1373                 if (num < 0 || num >= fh->buffers.num_buffers ||
1374                     !fh->buffers.allocated) {
1375                         dprintk(1,
1376                                 KERN_ERR
1377                                 "%s: %s - wrong number or buffers not allocated\n",
1378                                 ZR_DEVNAME(zr), __func__);
1379                         return -EINVAL;
1380                 }
1381
1382                 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1383                               V4L2_BUF_TYPE_VIDEO_CAPTURE :
1384                               V4L2_BUF_TYPE_VIDEO_OUTPUT;
1385                 buf->length = fh->buffers.buffer_size;
1386
1387                 /* these variables are only written after frame has been captured */
1388                 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
1389                     fh->buffers.buffer[num].state == BUZ_STATE_USER) {
1390                         buf->sequence = fh->buffers.buffer[num].bs.seq;
1391                         buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
1392                         buf->bytesused = fh->buffers.buffer[num].bs.length;
1393                         buf->flags |= V4L2_BUF_FLAG_DONE;
1394                 } else {
1395                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1396                 }
1397
1398                 /* which fields are these? */
1399                 if (fh->jpg_settings.TmpDcm != 1)
1400                         buf->field = fh->jpg_settings.odd_even ?
1401                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1402                 else
1403                         buf->field = fh->jpg_settings.odd_even ?
1404                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT;
1405
1406                 break;
1407
1408         default:
1409
1410                 dprintk(5,
1411                         KERN_ERR
1412                         "%s: %s - invalid buffer type|map_mode (%d|%d)\n",
1413                         ZR_DEVNAME(zr), __func__, buf->type, fh->map_mode);
1414                 return -EINVAL;
1415         }
1416
1417         buf->memory = V4L2_MEMORY_MMAP;
1418         buf->index = num;
1419         buf->m.offset = buf->length * num;
1420
1421         return 0;
1422 }
1423
1424 static int
1425 zoran_set_norm (struct zoran *zr,
1426                 v4l2_std_id norm)
1427 {
1428         int on;
1429
1430         if (zr->v4l_buffers.active != ZORAN_FREE ||
1431             zr->jpg_buffers.active != ZORAN_FREE) {
1432                 dprintk(1,
1433                         KERN_WARNING
1434                         "%s: %s called while in playback/capture mode\n",
1435                         ZR_DEVNAME(zr), __func__);
1436                 return -EBUSY;
1437         }
1438
1439         if (!(norm & zr->card.norms)) {
1440                 dprintk(1,
1441                         KERN_ERR "%s: %s - unsupported norm %llx\n",
1442                         ZR_DEVNAME(zr), __func__, norm);
1443                 return -EINVAL;
1444         }
1445
1446         if (norm & V4L2_STD_SECAM)
1447                 zr->timing = zr->card.tvn[2];
1448         else if (norm & V4L2_STD_NTSC)
1449                 zr->timing = zr->card.tvn[1];
1450         else
1451                 zr->timing = zr->card.tvn[0];
1452
1453         /* We switch overlay off and on since a change in the
1454          * norm needs different VFE settings */
1455         on = zr->overlay_active && !zr->v4l_memgrab_active;
1456         if (on)
1457                 zr36057_overlay(zr, 0);
1458
1459         decoder_call(zr, video, s_std, norm);
1460         encoder_call(zr, video, s_std_output, norm);
1461
1462         if (on)
1463                 zr36057_overlay(zr, 1);
1464
1465         /* Make sure the changes come into effect */
1466         zr->norm = norm;
1467
1468         return 0;
1469 }
1470
1471 static int
1472 zoran_set_input (struct zoran *zr,
1473                  int           input)
1474 {
1475         if (input == zr->input) {
1476                 return 0;
1477         }
1478
1479         if (zr->v4l_buffers.active != ZORAN_FREE ||
1480             zr->jpg_buffers.active != ZORAN_FREE) {
1481                 dprintk(1,
1482                         KERN_WARNING
1483                         "%s: %s called while in playback/capture mode\n",
1484                         ZR_DEVNAME(zr), __func__);
1485                 return -EBUSY;
1486         }
1487
1488         if (input < 0 || input >= zr->card.inputs) {
1489                 dprintk(1,
1490                         KERN_ERR
1491                         "%s: %s - unsupported input %d\n",
1492                         ZR_DEVNAME(zr), __func__, input);
1493                 return -EINVAL;
1494         }
1495
1496         zr->input = input;
1497
1498         decoder_call(zr, video, s_routing,
1499                         zr->card.input[input].muxsel, 0, 0);
1500
1501         return 0;
1502 }
1503
1504 /*
1505  *   ioctl routine
1506  */
1507
1508 static int zoran_querycap(struct file *file, void *__fh, struct v4l2_capability *cap)
1509 {
1510         struct zoran_fh *fh = __fh;
1511         struct zoran *zr = fh->zr;
1512
1513         strlcpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card));
1514         strlcpy(cap->driver, "zoran", sizeof(cap->driver));
1515         snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
1516                  pci_name(zr->pci_dev));
1517         cap->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE |
1518                            V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_VIDEO_OVERLAY;
1519         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
1520         return 0;
1521 }
1522
1523 static int zoran_enum_fmt(struct zoran *zr, struct v4l2_fmtdesc *fmt, int flag)
1524 {
1525         unsigned int num, i;
1526
1527         for (num = i = 0; i < NUM_FORMATS; i++) {
1528                 if (zoran_formats[i].flags & flag && num++ == fmt->index) {
1529                         strncpy(fmt->description, zoran_formats[i].name,
1530                                 sizeof(fmt->description) - 1);
1531                         /* fmt struct pre-zeroed, so adding '\0' not needed */
1532                         fmt->pixelformat = zoran_formats[i].fourcc;
1533                         if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
1534                                 fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
1535                         return 0;
1536                 }
1537         }
1538         return -EINVAL;
1539 }
1540
1541 static int zoran_enum_fmt_vid_cap(struct file *file, void *__fh,
1542                                             struct v4l2_fmtdesc *f)
1543 {
1544         struct zoran_fh *fh = __fh;
1545         struct zoran *zr = fh->zr;
1546
1547         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_CAPTURE);
1548 }
1549
1550 static int zoran_enum_fmt_vid_out(struct file *file, void *__fh,
1551                                             struct v4l2_fmtdesc *f)
1552 {
1553         struct zoran_fh *fh = __fh;
1554         struct zoran *zr = fh->zr;
1555
1556         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_PLAYBACK);
1557 }
1558
1559 static int zoran_enum_fmt_vid_overlay(struct file *file, void *__fh,
1560                                             struct v4l2_fmtdesc *f)
1561 {
1562         struct zoran_fh *fh = __fh;
1563         struct zoran *zr = fh->zr;
1564
1565         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_OVERLAY);
1566 }
1567
1568 static int zoran_g_fmt_vid_out(struct file *file, void *__fh,
1569                                         struct v4l2_format *fmt)
1570 {
1571         struct zoran_fh *fh = __fh;
1572
1573         fmt->fmt.pix.width = fh->jpg_settings.img_width / fh->jpg_settings.HorDcm;
1574         fmt->fmt.pix.height = fh->jpg_settings.img_height * 2 /
1575                 (fh->jpg_settings.VerDcm * fh->jpg_settings.TmpDcm);
1576         fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1577         fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
1578         if (fh->jpg_settings.TmpDcm == 1)
1579                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1580                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1581         else
1582                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1583                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1584         fmt->fmt.pix.bytesperline = 0;
1585         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1586
1587         return 0;
1588 }
1589
1590 static int zoran_g_fmt_vid_cap(struct file *file, void *__fh,
1591                                         struct v4l2_format *fmt)
1592 {
1593         struct zoran_fh *fh = __fh;
1594         struct zoran *zr = fh->zr;
1595
1596         if (fh->map_mode != ZORAN_MAP_MODE_RAW)
1597                 return zoran_g_fmt_vid_out(file, fh, fmt);
1598
1599         fmt->fmt.pix.width = fh->v4l_settings.width;
1600         fmt->fmt.pix.height = fh->v4l_settings.height;
1601         fmt->fmt.pix.sizeimage = fh->v4l_settings.bytesperline *
1602                                         fh->v4l_settings.height;
1603         fmt->fmt.pix.pixelformat = fh->v4l_settings.format->fourcc;
1604         fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
1605         fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
1606         if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
1607                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
1608         else
1609                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
1610         return 0;
1611 }
1612
1613 static int zoran_g_fmt_vid_overlay(struct file *file, void *__fh,
1614                                         struct v4l2_format *fmt)
1615 {
1616         struct zoran_fh *fh = __fh;
1617         struct zoran *zr = fh->zr;
1618
1619         fmt->fmt.win.w.left = fh->overlay_settings.x;
1620         fmt->fmt.win.w.top = fh->overlay_settings.y;
1621         fmt->fmt.win.w.width = fh->overlay_settings.width;
1622         fmt->fmt.win.w.height = fh->overlay_settings.height;
1623         if (fh->overlay_settings.width * 2 > BUZ_MAX_HEIGHT)
1624                 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
1625         else
1626                 fmt->fmt.win.field = V4L2_FIELD_TOP;
1627
1628         return 0;
1629 }
1630
1631 static int zoran_try_fmt_vid_overlay(struct file *file, void *__fh,
1632                                         struct v4l2_format *fmt)
1633 {
1634         struct zoran_fh *fh = __fh;
1635         struct zoran *zr = fh->zr;
1636
1637         if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
1638                 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
1639         if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
1640                 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
1641         if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
1642                 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
1643         if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
1644                 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
1645
1646         return 0;
1647 }
1648
1649 static int zoran_try_fmt_vid_out(struct file *file, void *__fh,
1650                                         struct v4l2_format *fmt)
1651 {
1652         struct zoran_fh *fh = __fh;
1653         struct zoran *zr = fh->zr;
1654         struct zoran_jpg_settings settings;
1655         int res = 0;
1656
1657         if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
1658                 return -EINVAL;
1659
1660         settings = fh->jpg_settings;
1661
1662         /* we actually need to set 'real' parameters now */
1663         if ((fmt->fmt.pix.height * 2) > BUZ_MAX_HEIGHT)
1664                 settings.TmpDcm = 1;
1665         else
1666                 settings.TmpDcm = 2;
1667         settings.decimation = 0;
1668         if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
1669                 settings.VerDcm = 2;
1670         else
1671                 settings.VerDcm = 1;
1672         if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
1673                 settings.HorDcm = 4;
1674         else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
1675                 settings.HorDcm = 2;
1676         else
1677                 settings.HorDcm = 1;
1678         if (settings.TmpDcm == 1)
1679                 settings.field_per_buff = 2;
1680         else
1681                 settings.field_per_buff = 1;
1682
1683         if (settings.HorDcm > 1) {
1684                 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
1685                 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
1686         } else {
1687                 settings.img_x = 0;
1688                 settings.img_width = BUZ_MAX_WIDTH;
1689         }
1690
1691         /* check */
1692         res = zoran_check_jpg_settings(zr, &settings, 1);
1693         if (res)
1694                 return res;
1695
1696         /* tell the user what we actually did */
1697         fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
1698         fmt->fmt.pix.height = settings.img_height * 2 /
1699                 (settings.TmpDcm * settings.VerDcm);
1700         if (settings.TmpDcm == 1)
1701                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1702                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1703         else
1704                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1705                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1706
1707         fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&settings);
1708         fmt->fmt.pix.bytesperline = 0;
1709         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1710         return res;
1711 }
1712
1713 static int zoran_try_fmt_vid_cap(struct file *file, void *__fh,
1714                                         struct v4l2_format *fmt)
1715 {
1716         struct zoran_fh *fh = __fh;
1717         struct zoran *zr = fh->zr;
1718         int bpp;
1719         int i;
1720
1721         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
1722                 return zoran_try_fmt_vid_out(file, fh, fmt);
1723
1724         for (i = 0; i < NUM_FORMATS; i++)
1725                 if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat)
1726                         break;
1727
1728         if (i == NUM_FORMATS)
1729                 return -EINVAL;
1730
1731         bpp = DIV_ROUND_UP(zoran_formats[i].depth, 8);
1732         v4l_bound_align_image(
1733                 &fmt->fmt.pix.width, BUZ_MIN_WIDTH, BUZ_MAX_WIDTH, bpp == 2 ? 1 : 2,
1734                 &fmt->fmt.pix.height, BUZ_MIN_HEIGHT, BUZ_MAX_HEIGHT, 0, 0);
1735         return 0;
1736 }
1737
1738 static int zoran_s_fmt_vid_overlay(struct file *file, void *__fh,
1739                                         struct v4l2_format *fmt)
1740 {
1741         struct zoran_fh *fh = __fh;
1742         int res;
1743
1744         dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
1745                         fmt->fmt.win.w.left, fmt->fmt.win.w.top,
1746                         fmt->fmt.win.w.width,
1747                         fmt->fmt.win.w.height,
1748                         fmt->fmt.win.clipcount,
1749                         fmt->fmt.win.bitmap);
1750         res = setup_window(fh, fmt->fmt.win.w.left, fmt->fmt.win.w.top,
1751                            fmt->fmt.win.w.width, fmt->fmt.win.w.height,
1752                            (struct v4l2_clip __user *)fmt->fmt.win.clips,
1753                            fmt->fmt.win.clipcount, fmt->fmt.win.bitmap);
1754         return res;
1755 }
1756
1757 static int zoran_s_fmt_vid_out(struct file *file, void *__fh,
1758                                         struct v4l2_format *fmt)
1759 {
1760         struct zoran_fh *fh = __fh;
1761         struct zoran *zr = fh->zr;
1762         __le32 printformat = __cpu_to_le32(fmt->fmt.pix.pixelformat);
1763         struct zoran_jpg_settings settings;
1764         int res = 0;
1765
1766         dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
1767                         fmt->fmt.pix.width, fmt->fmt.pix.height,
1768                         fmt->fmt.pix.pixelformat,
1769                         (char *) &printformat);
1770         if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
1771                 return -EINVAL;
1772
1773         if (fh->buffers.allocated) {
1774                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
1775                         ZR_DEVNAME(zr));
1776                 res = -EBUSY;
1777                 return res;
1778         }
1779
1780         settings = fh->jpg_settings;
1781
1782         /* we actually need to set 'real' parameters now */
1783         if (fmt->fmt.pix.height * 2 > BUZ_MAX_HEIGHT)
1784                 settings.TmpDcm = 1;
1785         else
1786                 settings.TmpDcm = 2;
1787         settings.decimation = 0;
1788         if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
1789                 settings.VerDcm = 2;
1790         else
1791                 settings.VerDcm = 1;
1792         if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
1793                 settings.HorDcm = 4;
1794         else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
1795                 settings.HorDcm = 2;
1796         else
1797                 settings.HorDcm = 1;
1798         if (settings.TmpDcm == 1)
1799                 settings.field_per_buff = 2;
1800         else
1801                 settings.field_per_buff = 1;
1802
1803         if (settings.HorDcm > 1) {
1804                 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
1805                 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
1806         } else {
1807                 settings.img_x = 0;
1808                 settings.img_width = BUZ_MAX_WIDTH;
1809         }
1810
1811         /* check */
1812         res = zoran_check_jpg_settings(zr, &settings, 0);
1813         if (res)
1814                 return res;
1815
1816         /* it's ok, so set them */
1817         fh->jpg_settings = settings;
1818
1819         map_mode_jpg(fh, fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
1820         fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1821
1822         /* tell the user what we actually did */
1823         fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
1824         fmt->fmt.pix.height = settings.img_height * 2 /
1825                 (settings.TmpDcm * settings.VerDcm);
1826         if (settings.TmpDcm == 1)
1827                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1828                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1829         else
1830                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1831                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1832         fmt->fmt.pix.bytesperline = 0;
1833         fmt->fmt.pix.sizeimage = fh->buffers.buffer_size;
1834         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1835         return res;
1836 }
1837
1838 static int zoran_s_fmt_vid_cap(struct file *file, void *__fh,
1839                                         struct v4l2_format *fmt)
1840 {
1841         struct zoran_fh *fh = __fh;
1842         struct zoran *zr = fh->zr;
1843         int i;
1844         int res = 0;
1845
1846         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
1847                 return zoran_s_fmt_vid_out(file, fh, fmt);
1848
1849         for (i = 0; i < NUM_FORMATS; i++)
1850                 if (fmt->fmt.pix.pixelformat == zoran_formats[i].fourcc)
1851                         break;
1852         if (i == NUM_FORMATS) {
1853                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x\n",
1854                         ZR_DEVNAME(zr), fmt->fmt.pix.pixelformat);
1855                 return -EINVAL;
1856         }
1857
1858         if ((fh->map_mode != ZORAN_MAP_MODE_RAW && fh->buffers.allocated) ||
1859             fh->buffers.active != ZORAN_FREE) {
1860                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
1861                                 ZR_DEVNAME(zr));
1862                 res = -EBUSY;
1863                 return res;
1864         }
1865         if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
1866                 fmt->fmt.pix.height = BUZ_MAX_HEIGHT;
1867         if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
1868                 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
1869
1870         map_mode_raw(fh);
1871
1872         res = zoran_v4l_set_format(fh, fmt->fmt.pix.width, fmt->fmt.pix.height,
1873                                    &zoran_formats[i]);
1874         if (res)
1875                 return res;
1876
1877         /* tell the user the results/missing stuff */
1878         fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
1879         fmt->fmt.pix.sizeimage = fh->v4l_settings.height * fh->v4l_settings.bytesperline;
1880         fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
1881         if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
1882                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
1883         else
1884                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
1885         return res;
1886 }
1887
1888 static int zoran_g_fbuf(struct file *file, void *__fh,
1889                 struct v4l2_framebuffer *fb)
1890 {
1891         struct zoran_fh *fh = __fh;
1892         struct zoran *zr = fh->zr;
1893
1894         memset(fb, 0, sizeof(*fb));
1895         fb->base = zr->vbuf_base;
1896         fb->fmt.width = zr->vbuf_width;
1897         fb->fmt.height = zr->vbuf_height;
1898         if (zr->overlay_settings.format)
1899                 fb->fmt.pixelformat = fh->overlay_settings.format->fourcc;
1900         fb->fmt.bytesperline = zr->vbuf_bytesperline;
1901         fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1902         fb->fmt.field = V4L2_FIELD_INTERLACED;
1903         fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
1904
1905         return 0;
1906 }
1907
1908 static int zoran_s_fbuf(struct file *file, void *__fh,
1909                 const struct v4l2_framebuffer *fb)
1910 {
1911         struct zoran_fh *fh = __fh;
1912         struct zoran *zr = fh->zr;
1913         int i, res = 0;
1914         __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
1915
1916         for (i = 0; i < NUM_FORMATS; i++)
1917                 if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
1918                         break;
1919         if (i == NUM_FORMATS) {
1920                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
1921                         ZR_DEVNAME(zr), fb->fmt.pixelformat,
1922                         (char *)&printformat);
1923                 return -EINVAL;
1924         }
1925
1926         res = setup_fbuffer(fh, fb->base, &zoran_formats[i], fb->fmt.width,
1927                             fb->fmt.height, fb->fmt.bytesperline);
1928
1929         return res;
1930 }
1931
1932 static int zoran_overlay(struct file *file, void *__fh, unsigned int on)
1933 {
1934         struct zoran_fh *fh = __fh;
1935         int res;
1936
1937         res = setup_overlay(fh, on);
1938
1939         return res;
1940 }
1941
1942 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type);
1943
1944 static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *req)
1945 {
1946         struct zoran_fh *fh = __fh;
1947         struct zoran *zr = fh->zr;
1948         int res = 0;
1949
1950         if (req->memory != V4L2_MEMORY_MMAP) {
1951                 dprintk(2,
1952                                 KERN_ERR
1953                                 "%s: only MEMORY_MMAP capture is supported, not %d\n",
1954                                 ZR_DEVNAME(zr), req->memory);
1955                 return -EINVAL;
1956         }
1957
1958         if (req->count == 0)
1959                 return zoran_streamoff(file, fh, req->type);
1960
1961         if (fh->buffers.allocated) {
1962                 dprintk(2,
1963                                 KERN_ERR
1964                                 "%s: VIDIOC_REQBUFS - buffers already allocated\n",
1965                                 ZR_DEVNAME(zr));
1966                 res = -EBUSY;
1967                 return res;
1968         }
1969
1970         if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
1971             req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1972                 /* control user input */
1973                 if (req->count < 2)
1974                         req->count = 2;
1975                 if (req->count > v4l_nbufs)
1976                         req->count = v4l_nbufs;
1977
1978                 /* The next mmap will map the V4L buffers */
1979                 map_mode_raw(fh);
1980                 fh->buffers.num_buffers = req->count;
1981
1982                 if (v4l_fbuffer_alloc(fh)) {
1983                         res = -ENOMEM;
1984                         return res;
1985                 }
1986         } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
1987                    fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
1988                 /* we need to calculate size ourselves now */
1989                 if (req->count < 4)
1990                         req->count = 4;
1991                 if (req->count > jpg_nbufs)
1992                         req->count = jpg_nbufs;
1993
1994                 /* The next mmap will map the MJPEG buffers */
1995                 map_mode_jpg(fh, req->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
1996                 fh->buffers.num_buffers = req->count;
1997                 fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1998
1999                 if (jpg_fbuffer_alloc(fh)) {
2000                         res = -ENOMEM;
2001                         return res;
2002                 }
2003         } else {
2004                 dprintk(1,
2005                                 KERN_ERR
2006                                 "%s: VIDIOC_REQBUFS - unknown type %d\n",
2007                                 ZR_DEVNAME(zr), req->type);
2008                 res = -EINVAL;
2009                 return res;
2010         }
2011         return res;
2012 }
2013
2014 static int zoran_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2015 {
2016         struct zoran_fh *fh = __fh;
2017         int res;
2018
2019         res = zoran_v4l2_buffer_status(fh, buf, buf->index);
2020
2021         return res;
2022 }
2023
2024 static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2025 {
2026         struct zoran_fh *fh = __fh;
2027         struct zoran *zr = fh->zr;
2028         int res = 0, codec_mode, buf_type;
2029
2030         switch (fh->map_mode) {
2031         case ZORAN_MAP_MODE_RAW:
2032                 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2033                         dprintk(1, KERN_ERR
2034                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2035                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2036                         res = -EINVAL;
2037                         return res;
2038                 }
2039
2040                 res = zoran_v4l_queue_frame(fh, buf->index);
2041                 if (res)
2042                         return res;
2043                 if (!zr->v4l_memgrab_active && fh->buffers.active == ZORAN_LOCKED)
2044                         zr36057_set_memgrab(zr, 1);
2045                 break;
2046
2047         case ZORAN_MAP_MODE_JPG_REC:
2048         case ZORAN_MAP_MODE_JPG_PLAY:
2049                 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
2050                         buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2051                         codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
2052                 } else {
2053                         buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2054                         codec_mode = BUZ_MODE_MOTION_COMPRESS;
2055                 }
2056
2057                 if (buf->type != buf_type) {
2058                         dprintk(1, KERN_ERR
2059                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2060                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2061                         res = -EINVAL;
2062                         return res;
2063                 }
2064
2065                 res = zoran_jpg_queue_frame(fh, buf->index, codec_mode);
2066                 if (res != 0)
2067                         return res;
2068                 if (zr->codec_mode == BUZ_MODE_IDLE &&
2069                     fh->buffers.active == ZORAN_LOCKED)
2070                         zr36057_enable_jpg(zr, codec_mode);
2071
2072                 break;
2073
2074         default:
2075                 dprintk(1, KERN_ERR
2076                         "%s: VIDIOC_QBUF - unsupported type %d\n",
2077                         ZR_DEVNAME(zr), buf->type);
2078                 res = -EINVAL;
2079                 break;
2080         }
2081         return res;
2082 }
2083
2084 static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2085 {
2086         struct zoran_fh *fh = __fh;
2087         struct zoran *zr = fh->zr;
2088         int res = 0, buf_type, num = -1;        /* compiler borks here (?) */
2089
2090         switch (fh->map_mode) {
2091         case ZORAN_MAP_MODE_RAW:
2092                 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2093                         dprintk(1, KERN_ERR
2094                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2095                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2096                         res = -EINVAL;
2097                         return res;
2098                 }
2099
2100                 num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
2101                 if (file->f_flags & O_NONBLOCK &&
2102                     zr->v4l_buffers.buffer[num].state != BUZ_STATE_DONE) {
2103                         res = -EAGAIN;
2104                         return res;
2105                 }
2106                 res = v4l_sync(fh, num);
2107                 if (res)
2108                         return res;
2109                 zr->v4l_sync_tail++;
2110                 res = zoran_v4l2_buffer_status(fh, buf, num);
2111                 break;
2112
2113         case ZORAN_MAP_MODE_JPG_REC:
2114         case ZORAN_MAP_MODE_JPG_PLAY:
2115         {
2116                 struct zoran_sync bs;
2117
2118                 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
2119                         buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2120                 else
2121                         buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2122
2123                 if (buf->type != buf_type) {
2124                         dprintk(1, KERN_ERR
2125                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2126                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2127                         res = -EINVAL;
2128                         return res;
2129                 }
2130
2131                 num = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
2132
2133                 if (file->f_flags & O_NONBLOCK &&
2134                     zr->jpg_buffers.buffer[num].state != BUZ_STATE_DONE) {
2135                         res = -EAGAIN;
2136                         return res;
2137                 }
2138                 bs.frame = 0; /* suppress compiler warning */
2139                 res = jpg_sync(fh, &bs);
2140                 if (res)
2141                         return res;
2142                 res = zoran_v4l2_buffer_status(fh, buf, bs.frame);
2143                 break;
2144         }
2145
2146         default:
2147                 dprintk(1, KERN_ERR
2148                         "%s: VIDIOC_DQBUF - unsupported type %d\n",
2149                         ZR_DEVNAME(zr), buf->type);
2150                 res = -EINVAL;
2151                 break;
2152         }
2153         return res;
2154 }
2155
2156 static int zoran_streamon(struct file *file, void *__fh, enum v4l2_buf_type type)
2157 {
2158         struct zoran_fh *fh = __fh;
2159         struct zoran *zr = fh->zr;
2160         int res = 0;
2161
2162         switch (fh->map_mode) {
2163         case ZORAN_MAP_MODE_RAW:        /* raw capture */
2164                 if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
2165                     fh->buffers.active != ZORAN_ACTIVE) {
2166                         res = -EBUSY;
2167                         return res;
2168                 }
2169
2170                 zr->v4l_buffers.active = fh->buffers.active = ZORAN_LOCKED;
2171                 zr->v4l_settings = fh->v4l_settings;
2172
2173                 zr->v4l_sync_tail = zr->v4l_pend_tail;
2174                 if (!zr->v4l_memgrab_active &&
2175                     zr->v4l_pend_head != zr->v4l_pend_tail) {
2176                         zr36057_set_memgrab(zr, 1);
2177                 }
2178                 break;
2179
2180         case ZORAN_MAP_MODE_JPG_REC:
2181         case ZORAN_MAP_MODE_JPG_PLAY:
2182                 /* what is the codec mode right now? */
2183                 if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
2184                     fh->buffers.active != ZORAN_ACTIVE) {
2185                         res = -EBUSY;
2186                         return res;
2187                 }
2188
2189                 zr->jpg_buffers.active = fh->buffers.active = ZORAN_LOCKED;
2190
2191                 if (zr->jpg_que_head != zr->jpg_que_tail) {
2192                         /* Start the jpeg codec when the first frame is queued  */
2193                         jpeg_start(zr);
2194                 }
2195                 break;
2196
2197         default:
2198                 dprintk(1,
2199                         KERN_ERR
2200                         "%s: VIDIOC_STREAMON - invalid map mode %d\n",
2201                         ZR_DEVNAME(zr), fh->map_mode);
2202                 res = -EINVAL;
2203                 break;
2204         }
2205         return res;
2206 }
2207
2208 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type)
2209 {
2210         struct zoran_fh *fh = __fh;
2211         struct zoran *zr = fh->zr;
2212         int i, res = 0;
2213         unsigned long flags;
2214
2215         switch (fh->map_mode) {
2216         case ZORAN_MAP_MODE_RAW:        /* raw capture */
2217                 if (fh->buffers.active == ZORAN_FREE &&
2218                     zr->v4l_buffers.active != ZORAN_FREE) {
2219                         res = -EPERM;   /* stay off other's settings! */
2220                         return res;
2221                 }
2222                 if (zr->v4l_buffers.active == ZORAN_FREE)
2223                         return res;
2224
2225                 spin_lock_irqsave(&zr->spinlock, flags);
2226                 /* unload capture */
2227                 if (zr->v4l_memgrab_active) {
2228
2229                         zr36057_set_memgrab(zr, 0);
2230                 }
2231
2232                 for (i = 0; i < fh->buffers.num_buffers; i++)
2233                         zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER;
2234                 fh->buffers = zr->v4l_buffers;
2235
2236                 zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
2237
2238                 zr->v4l_grab_seq = 0;
2239                 zr->v4l_pend_head = zr->v4l_pend_tail = 0;
2240                 zr->v4l_sync_tail = 0;
2241
2242                 spin_unlock_irqrestore(&zr->spinlock, flags);
2243
2244                 break;
2245
2246         case ZORAN_MAP_MODE_JPG_REC:
2247         case ZORAN_MAP_MODE_JPG_PLAY:
2248                 if (fh->buffers.active == ZORAN_FREE &&
2249                     zr->jpg_buffers.active != ZORAN_FREE) {
2250                         res = -EPERM;   /* stay off other's settings! */
2251                         return res;
2252                 }
2253                 if (zr->jpg_buffers.active == ZORAN_FREE)
2254                         return res;
2255
2256                 res = jpg_qbuf(fh, -1,
2257                              (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
2258                              BUZ_MODE_MOTION_COMPRESS :
2259                              BUZ_MODE_MOTION_DECOMPRESS);
2260                 if (res)
2261                         return res;
2262                 break;
2263         default:
2264                 dprintk(1, KERN_ERR
2265                         "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
2266                         ZR_DEVNAME(zr), fh->map_mode);
2267                 res = -EINVAL;
2268                 break;
2269         }
2270         return res;
2271 }
2272 static int zoran_g_std(struct file *file, void *__fh, v4l2_std_id *std)
2273 {
2274         struct zoran_fh *fh = __fh;
2275         struct zoran *zr = fh->zr;
2276
2277         *std = zr->norm;
2278         return 0;
2279 }
2280
2281 static int zoran_s_std(struct file *file, void *__fh, v4l2_std_id std)
2282 {
2283         struct zoran_fh *fh = __fh;
2284         struct zoran *zr = fh->zr;
2285         int res = 0;
2286
2287         res = zoran_set_norm(zr, std);
2288         if (res)
2289                 return res;
2290
2291         res = wait_grab_pending(zr);
2292         return res;
2293 }
2294
2295 static int zoran_enum_input(struct file *file, void *__fh,
2296                                  struct v4l2_input *inp)
2297 {
2298         struct zoran_fh *fh = __fh;
2299         struct zoran *zr = fh->zr;
2300
2301         if (inp->index >= zr->card.inputs)
2302                 return -EINVAL;
2303
2304         strncpy(inp->name, zr->card.input[inp->index].name,
2305                 sizeof(inp->name) - 1);
2306         inp->type = V4L2_INPUT_TYPE_CAMERA;
2307         inp->std = V4L2_STD_ALL;
2308
2309         /* Get status of video decoder */
2310         decoder_call(zr, video, g_input_status, &inp->status);
2311         return 0;
2312 }
2313
2314 static int zoran_g_input(struct file *file, void *__fh, unsigned int *input)
2315 {
2316         struct zoran_fh *fh = __fh;
2317         struct zoran *zr = fh->zr;
2318
2319         *input = zr->input;
2320
2321         return 0;
2322 }
2323
2324 static int zoran_s_input(struct file *file, void *__fh, unsigned int input)
2325 {
2326         struct zoran_fh *fh = __fh;
2327         struct zoran *zr = fh->zr;
2328         int res;
2329
2330         res = zoran_set_input(zr, input);
2331         if (res)
2332                 return res;
2333
2334         /* Make sure the changes come into effect */
2335         res = wait_grab_pending(zr);
2336         return res;
2337 }
2338
2339 static int zoran_enum_output(struct file *file, void *__fh,
2340                                   struct v4l2_output *outp)
2341 {
2342         if (outp->index != 0)
2343                 return -EINVAL;
2344
2345         outp->index = 0;
2346         outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
2347         strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
2348
2349         return 0;
2350 }
2351
2352 static int zoran_g_output(struct file *file, void *__fh, unsigned int *output)
2353 {
2354         *output = 0;
2355
2356         return 0;
2357 }
2358
2359 static int zoran_s_output(struct file *file, void *__fh, unsigned int output)
2360 {
2361         if (output != 0)
2362                 return -EINVAL;
2363
2364         return 0;
2365 }
2366
2367 /* cropping (sub-frame capture) */
2368 static int zoran_g_selection(struct file *file, void *__fh, struct v4l2_selection *sel)
2369 {
2370         struct zoran_fh *fh = __fh;
2371         struct zoran *zr = fh->zr;
2372
2373         if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2374             sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
2375                 return -EINVAL;
2376
2377         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
2378                 dprintk(1, KERN_ERR
2379                         "%s: VIDIOC_G_SELECTION - subcapture only supported for compressed capture\n",
2380                         ZR_DEVNAME(zr));
2381                 return -EINVAL;
2382         }
2383
2384         switch (sel->target) {
2385         case V4L2_SEL_TGT_CROP:
2386                 sel->r.top = fh->jpg_settings.img_y;
2387                 sel->r.left = fh->jpg_settings.img_x;
2388                 sel->r.width = fh->jpg_settings.img_width;
2389                 sel->r.height = fh->jpg_settings.img_height;
2390                 break;
2391         case V4L2_SEL_TGT_CROP_DEFAULT:
2392                 sel->r.top = sel->r.left = 0;
2393                 sel->r.width = BUZ_MIN_WIDTH;
2394                 sel->r.height = BUZ_MIN_HEIGHT;
2395                 break;
2396         case V4L2_SEL_TGT_CROP_BOUNDS:
2397                 sel->r.top = sel->r.left = 0;
2398                 sel->r.width = BUZ_MAX_WIDTH;
2399                 sel->r.height = BUZ_MAX_HEIGHT;
2400                 break;
2401         default:
2402                 return -EINVAL;
2403         }
2404         return 0;
2405 }
2406
2407 static int zoran_s_selection(struct file *file, void *__fh, struct v4l2_selection *sel)
2408 {
2409         struct zoran_fh *fh = __fh;
2410         struct zoran *zr = fh->zr;
2411         struct zoran_jpg_settings settings;
2412         int res;
2413
2414         if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2415             sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
2416                 return -EINVAL;
2417
2418         if (sel->target != V4L2_SEL_TGT_CROP)
2419                 return -EINVAL;
2420
2421         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
2422                 dprintk(1, KERN_ERR
2423                         "%s: VIDIOC_S_SELECTION - subcapture only supported for compressed capture\n",
2424                         ZR_DEVNAME(zr));
2425                 return -EINVAL;
2426         }
2427
2428         settings = fh->jpg_settings;
2429
2430         if (fh->buffers.allocated) {
2431                 dprintk(1, KERN_ERR
2432                         "%s: VIDIOC_S_SELECTION - cannot change settings while active\n",
2433                         ZR_DEVNAME(zr));
2434                 return -EBUSY;
2435         }
2436
2437         /* move into a form that we understand */
2438         settings.img_x = sel->r.left;
2439         settings.img_y = sel->r.top;
2440         settings.img_width = sel->r.width;
2441         settings.img_height = sel->r.height;
2442
2443         /* check validity */
2444         res = zoran_check_jpg_settings(zr, &settings, 0);
2445         if (res)
2446                 return res;
2447
2448         /* accept */
2449         fh->jpg_settings = settings;
2450         return res;
2451 }
2452
2453 static int zoran_g_jpegcomp(struct file *file, void *__fh,
2454                                         struct v4l2_jpegcompression *params)
2455 {
2456         struct zoran_fh *fh = __fh;
2457         memset(params, 0, sizeof(*params));
2458
2459         params->quality = fh->jpg_settings.jpg_comp.quality;
2460         params->APPn = fh->jpg_settings.jpg_comp.APPn;
2461         memcpy(params->APP_data,
2462                fh->jpg_settings.jpg_comp.APP_data,
2463                fh->jpg_settings.jpg_comp.APP_len);
2464         params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2465         memcpy(params->COM_data,
2466                fh->jpg_settings.jpg_comp.COM_data,
2467                fh->jpg_settings.jpg_comp.COM_len);
2468         params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
2469         params->jpeg_markers =
2470             fh->jpg_settings.jpg_comp.jpeg_markers;
2471
2472         return 0;
2473 }
2474
2475 static int zoran_s_jpegcomp(struct file *file, void *__fh,
2476                                         const struct v4l2_jpegcompression *params)
2477 {
2478         struct zoran_fh *fh = __fh;
2479         struct zoran *zr = fh->zr;
2480         int res = 0;
2481         struct zoran_jpg_settings settings;
2482
2483         settings = fh->jpg_settings;
2484
2485         settings.jpg_comp = *params;
2486
2487         if (fh->buffers.active != ZORAN_FREE) {
2488                 dprintk(1, KERN_WARNING
2489                         "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
2490                         ZR_DEVNAME(zr));
2491                 res = -EBUSY;
2492                 return res;
2493         }
2494
2495         res = zoran_check_jpg_settings(zr, &settings, 0);
2496         if (res)
2497                 return res;
2498         if (!fh->buffers.allocated)
2499                 fh->buffers.buffer_size =
2500                         zoran_v4l2_calc_bufsize(&fh->jpg_settings);
2501         fh->jpg_settings.jpg_comp = settings.jpg_comp;
2502         return res;
2503 }
2504
2505 static __poll_t
2506 zoran_poll (struct file *file,
2507             poll_table  *wait)
2508 {
2509         struct zoran_fh *fh = file->private_data;
2510         struct zoran *zr = fh->zr;
2511         __poll_t res = v4l2_ctrl_poll(file, wait);
2512         int frame;
2513         unsigned long flags;
2514
2515         /* we should check whether buffers are ready to be synced on
2516          * (w/o waits - O_NONBLOCK) here
2517          * if ready for read (sync), return EPOLLIN|EPOLLRDNORM,
2518          * if ready for write (sync), return EPOLLOUT|EPOLLWRNORM,
2519          * if error, return EPOLLERR,
2520          * if no buffers queued or so, return EPOLLNVAL
2521          */
2522
2523         switch (fh->map_mode) {
2524         case ZORAN_MAP_MODE_RAW:
2525                 poll_wait(file, &zr->v4l_capq, wait);
2526                 frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
2527
2528                 spin_lock_irqsave(&zr->spinlock, flags);
2529                 dprintk(3,
2530                         KERN_DEBUG
2531                         "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
2532                         ZR_DEVNAME(zr), __func__,
2533                         "FAL"[fh->buffers.active], zr->v4l_sync_tail,
2534                         "UPMD"[zr->v4l_buffers.buffer[frame].state],
2535                         zr->v4l_pend_tail, zr->v4l_pend_head);
2536                 /* Process is the one capturing? */
2537                 if (fh->buffers.active != ZORAN_FREE &&
2538                     /* Buffer ready to DQBUF? */
2539                     zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
2540                         res |= EPOLLIN | EPOLLRDNORM;
2541                 spin_unlock_irqrestore(&zr->spinlock, flags);
2542
2543                 break;
2544
2545         case ZORAN_MAP_MODE_JPG_REC:
2546         case ZORAN_MAP_MODE_JPG_PLAY:
2547                 poll_wait(file, &zr->jpg_capq, wait);
2548                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
2549
2550                 spin_lock_irqsave(&zr->spinlock, flags);
2551                 dprintk(3,
2552                         KERN_DEBUG
2553                         "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
2554                         ZR_DEVNAME(zr), __func__,
2555                         "FAL"[fh->buffers.active], zr->jpg_que_tail,
2556                         "UPMD"[zr->jpg_buffers.buffer[frame].state],
2557                         zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
2558                 if (fh->buffers.active != ZORAN_FREE &&
2559                     zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
2560                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
2561                                 res |= EPOLLIN | EPOLLRDNORM;
2562                         else
2563                                 res |= EPOLLOUT | EPOLLWRNORM;
2564                 }
2565                 spin_unlock_irqrestore(&zr->spinlock, flags);
2566
2567                 break;
2568
2569         default:
2570                 dprintk(1,
2571                         KERN_ERR
2572                         "%s: %s - internal error, unknown map_mode=%d\n",
2573                         ZR_DEVNAME(zr), __func__, fh->map_mode);
2574                 res |= EPOLLERR;
2575         }
2576
2577         return res;
2578 }
2579
2580
2581 /*
2582  * This maps the buffers to user space.
2583  *
2584  * Depending on the state of fh->map_mode
2585  * the V4L or the MJPEG buffers are mapped
2586  * per buffer or all together
2587  *
2588  * Note that we need to connect to some
2589  * unmap signal event to unmap the de-allocate
2590  * the buffer accordingly (zoran_vm_close())
2591  */
2592
2593 static void
2594 zoran_vm_open (struct vm_area_struct *vma)
2595 {
2596         struct zoran_mapping *map = vma->vm_private_data;
2597         atomic_inc(&map->count);
2598 }
2599
2600 static void
2601 zoran_vm_close (struct vm_area_struct *vma)
2602 {
2603         struct zoran_mapping *map = vma->vm_private_data;
2604         struct zoran_fh *fh = map->fh;
2605         struct zoran *zr = fh->zr;
2606         int i;
2607
2608         dprintk(3, KERN_INFO "%s: %s - munmap(%s)\n", ZR_DEVNAME(zr),
2609                 __func__, mode_name(fh->map_mode));
2610
2611         for (i = 0; i < fh->buffers.num_buffers; i++) {
2612                 if (fh->buffers.buffer[i].map == map)
2613                         fh->buffers.buffer[i].map = NULL;
2614         }
2615         kfree(map);
2616
2617         /* Any buffers still mapped? */
2618         for (i = 0; i < fh->buffers.num_buffers; i++) {
2619                 if (fh->buffers.buffer[i].map) {
2620                         return;
2621                 }
2622         }
2623
2624         dprintk(3, KERN_INFO "%s: %s - free %s buffers\n", ZR_DEVNAME(zr),
2625                 __func__, mode_name(fh->map_mode));
2626
2627         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
2628                 if (fh->buffers.active != ZORAN_FREE) {
2629                         unsigned long flags;
2630
2631                         spin_lock_irqsave(&zr->spinlock, flags);
2632                         zr36057_set_memgrab(zr, 0);
2633                         zr->v4l_buffers.allocated = 0;
2634                         zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
2635                         spin_unlock_irqrestore(&zr->spinlock, flags);
2636                 }
2637                 v4l_fbuffer_free(fh);
2638         } else {
2639                 if (fh->buffers.active != ZORAN_FREE) {
2640                         jpg_qbuf(fh, -1, zr->codec_mode);
2641                         zr->jpg_buffers.allocated = 0;
2642                         zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
2643                 }
2644                 jpg_fbuffer_free(fh);
2645         }
2646 }
2647
2648 static const struct vm_operations_struct zoran_vm_ops = {
2649         .open = zoran_vm_open,
2650         .close = zoran_vm_close,
2651 };
2652
2653 static int
2654 zoran_mmap (struct file           *file,
2655             struct vm_area_struct *vma)
2656 {
2657         struct zoran_fh *fh = file->private_data;
2658         struct zoran *zr = fh->zr;
2659         unsigned long size = (vma->vm_end - vma->vm_start);
2660         unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
2661         int i, j;
2662         unsigned long page, start = vma->vm_start, todo, pos, fraglen;
2663         int first, last;
2664         struct zoran_mapping *map;
2665         int res = 0;
2666
2667         dprintk(3,
2668                 KERN_INFO "%s: %s(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
2669                 ZR_DEVNAME(zr), __func__,
2670                 mode_name(fh->map_mode), vma->vm_start, vma->vm_end, size);
2671
2672         if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
2673             !(vma->vm_flags & VM_WRITE)) {
2674                 dprintk(1,
2675                         KERN_ERR
2676                         "%s: %s - no MAP_SHARED/PROT_{READ,WRITE} given\n",
2677                         ZR_DEVNAME(zr), __func__);
2678                 return -EINVAL;
2679         }
2680
2681         if (!fh->buffers.allocated) {
2682                 dprintk(1,
2683                         KERN_ERR
2684                         "%s: %s(%s) - buffers not yet allocated\n",
2685                         ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode));
2686                 res = -ENOMEM;
2687                 return res;
2688         }
2689
2690         first = offset / fh->buffers.buffer_size;
2691         last = first - 1 + size / fh->buffers.buffer_size;
2692         if (offset % fh->buffers.buffer_size != 0 ||
2693             size % fh->buffers.buffer_size != 0 || first < 0 ||
2694             last < 0 || first >= fh->buffers.num_buffers ||
2695             last >= fh->buffers.buffer_size) {
2696                 dprintk(1,
2697                         KERN_ERR
2698                         "%s: %s(%s) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
2699                         ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), offset, size,
2700                         fh->buffers.buffer_size,
2701                         fh->buffers.num_buffers);
2702                 res = -EINVAL;
2703                 return res;
2704         }
2705
2706         /* Check if any buffers are already mapped */
2707         for (i = first; i <= last; i++) {
2708                 if (fh->buffers.buffer[i].map) {
2709                         dprintk(1,
2710                                 KERN_ERR
2711                                 "%s: %s(%s) - buffer %d already mapped\n",
2712                                 ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), i);
2713                         res = -EBUSY;
2714                         return res;
2715                 }
2716         }
2717
2718         /* map these buffers */
2719         map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
2720         if (!map) {
2721                 res = -ENOMEM;
2722                 return res;
2723         }
2724         map->fh = fh;
2725         atomic_set(&map->count, 1);
2726
2727         vma->vm_ops = &zoran_vm_ops;
2728         vma->vm_flags |= VM_DONTEXPAND;
2729         vma->vm_private_data = map;
2730
2731         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
2732                 for (i = first; i <= last; i++) {
2733                         todo = size;
2734                         if (todo > fh->buffers.buffer_size)
2735                                 todo = fh->buffers.buffer_size;
2736                         page = fh->buffers.buffer[i].v4l.fbuffer_phys;
2737                         if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
2738                                                         todo, PAGE_SHARED)) {
2739                                 dprintk(1,
2740                                         KERN_ERR
2741                                         "%s: %s(V4L) - remap_pfn_range failed\n",
2742                                         ZR_DEVNAME(zr), __func__);
2743                                 res = -EAGAIN;
2744                                 return res;
2745                         }
2746                         size -= todo;
2747                         start += todo;
2748                         fh->buffers.buffer[i].map = map;
2749                         if (size == 0)
2750                                 break;
2751                 }
2752         } else {
2753                 for (i = first; i <= last; i++) {
2754                         for (j = 0;
2755                              j < fh->buffers.buffer_size / PAGE_SIZE;
2756                              j++) {
2757                                 fraglen =
2758                                     (le32_to_cpu(fh->buffers.buffer[i].jpg.
2759                                      frag_tab[2 * j + 1]) & ~1) << 1;
2760                                 todo = size;
2761                                 if (todo > fraglen)
2762                                         todo = fraglen;
2763                                 pos =
2764                                     le32_to_cpu(fh->buffers.
2765                                     buffer[i].jpg.frag_tab[2 * j]);
2766                                 /* should just be pos on i386 */
2767                                 page = virt_to_phys(bus_to_virt(pos))
2768                                                                 >> PAGE_SHIFT;
2769                                 if (remap_pfn_range(vma, start, page,
2770                                                         todo, PAGE_SHARED)) {
2771                                         dprintk(1,
2772                                                 KERN_ERR
2773                                                 "%s: %s(V4L) - remap_pfn_range failed\n",
2774                                                 ZR_DEVNAME(zr), __func__);
2775                                         res = -EAGAIN;
2776                                         return res;
2777                                 }
2778                                 size -= todo;
2779                                 start += todo;
2780                                 if (size == 0)
2781                                         break;
2782                                 if (le32_to_cpu(fh->buffers.buffer[i].jpg.
2783                                     frag_tab[2 * j + 1]) & 1)
2784                                         break;  /* was last fragment */
2785                         }
2786                         fh->buffers.buffer[i].map = map;
2787                         if (size == 0)
2788                                 break;
2789
2790                 }
2791         }
2792         return res;
2793 }
2794
2795 static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
2796         .vidioc_querycap                    = zoran_querycap,
2797         .vidioc_s_selection                 = zoran_s_selection,
2798         .vidioc_g_selection                 = zoran_g_selection,
2799         .vidioc_enum_input                  = zoran_enum_input,
2800         .vidioc_g_input                     = zoran_g_input,
2801         .vidioc_s_input                     = zoran_s_input,
2802         .vidioc_enum_output                 = zoran_enum_output,
2803         .vidioc_g_output                    = zoran_g_output,
2804         .vidioc_s_output                    = zoran_s_output,
2805         .vidioc_g_fbuf                      = zoran_g_fbuf,
2806         .vidioc_s_fbuf                      = zoran_s_fbuf,
2807         .vidioc_g_std                       = zoran_g_std,
2808         .vidioc_s_std                       = zoran_s_std,
2809         .vidioc_g_jpegcomp                  = zoran_g_jpegcomp,
2810         .vidioc_s_jpegcomp                  = zoran_s_jpegcomp,
2811         .vidioc_overlay                     = zoran_overlay,
2812         .vidioc_reqbufs                     = zoran_reqbufs,
2813         .vidioc_querybuf                    = zoran_querybuf,
2814         .vidioc_qbuf                        = zoran_qbuf,
2815         .vidioc_dqbuf                       = zoran_dqbuf,
2816         .vidioc_streamon                    = zoran_streamon,
2817         .vidioc_streamoff                   = zoran_streamoff,
2818         .vidioc_enum_fmt_vid_cap            = zoran_enum_fmt_vid_cap,
2819         .vidioc_enum_fmt_vid_out            = zoran_enum_fmt_vid_out,
2820         .vidioc_enum_fmt_vid_overlay        = zoran_enum_fmt_vid_overlay,
2821         .vidioc_g_fmt_vid_cap               = zoran_g_fmt_vid_cap,
2822         .vidioc_g_fmt_vid_out               = zoran_g_fmt_vid_out,
2823         .vidioc_g_fmt_vid_overlay           = zoran_g_fmt_vid_overlay,
2824         .vidioc_s_fmt_vid_cap               = zoran_s_fmt_vid_cap,
2825         .vidioc_s_fmt_vid_out               = zoran_s_fmt_vid_out,
2826         .vidioc_s_fmt_vid_overlay           = zoran_s_fmt_vid_overlay,
2827         .vidioc_try_fmt_vid_cap             = zoran_try_fmt_vid_cap,
2828         .vidioc_try_fmt_vid_out             = zoran_try_fmt_vid_out,
2829         .vidioc_try_fmt_vid_overlay         = zoran_try_fmt_vid_overlay,
2830         .vidioc_subscribe_event             = v4l2_ctrl_subscribe_event,
2831         .vidioc_unsubscribe_event           = v4l2_event_unsubscribe,
2832 };
2833
2834 static const struct v4l2_file_operations zoran_fops = {
2835         .owner = THIS_MODULE,
2836         .open = zoran_open,
2837         .release = zoran_close,
2838         .unlocked_ioctl = video_ioctl2,
2839         .mmap = zoran_mmap,
2840         .poll = zoran_poll,
2841 };
2842
2843 const struct video_device zoran_template = {
2844         .name = ZORAN_NAME,
2845         .fops = &zoran_fops,
2846         .ioctl_ops = &zoran_ioctl_ops,
2847         .release = &zoran_vdev_release,
2848         .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
2849 };
2850