drivers/media/pci/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 0x%lx (bus: 0x%llx)\n",
 245                         ZR_DEVNAME(zr), __func__, i, (unsigned long) 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(((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(sizeof(struct v4l2_clip) * (clipcount + 4));
1224                 if (vcp == NULL) {
1225                         dprintk(1,
1226                                 KERN_ERR
1227                                 "%s: %s - Alloc of clip mask failed\n",
1228                                 ZR_DEVNAME(zr), __func__);
1229                         return -ENOMEM;
1230                 }
1231                 if (copy_from_user
1232                     (vcp, clips, sizeof(struct v4l2_clip) * clipcount)) {
1233                         vfree(vcp);
1234                         return -EFAULT;
1235                 }
1236                 write_overlay_mask(fh, vcp, clipcount);
1237                 vfree(vcp);
1238         }
1239
1240         fh->overlay_settings.is_set = 1;
1241         if (fh->overlay_active != ZORAN_FREE &&
1242             zr->overlay_active != ZORAN_FREE)
1243                 zr->overlay_settings = fh->overlay_settings;
1244
1245         if (on)
1246                 zr36057_overlay(zr, 1);
1247
1248         /* Make sure the changes come into effect */
1249         return wait_grab_pending(zr);
1250 }
1251
1252 static int setup_overlay(struct zoran_fh *fh, int on)
1253 {
1254         struct zoran *zr = fh->zr;
1255
1256         /* If there is nothing to do, return immediately */
1257         if ((on && fh->overlay_active != ZORAN_FREE) ||
1258             (!on && fh->overlay_active == ZORAN_FREE))
1259                 return 0;
1260
1261         /* check whether we're touching someone else's overlay */
1262         if (on && zr->overlay_active != ZORAN_FREE &&
1263             fh->overlay_active == ZORAN_FREE) {
1264                 dprintk(1,
1265                         KERN_ERR
1266                         "%s: %s - overlay is already active for another session\n",
1267                         ZR_DEVNAME(zr), __func__);
1268                 return -EBUSY;
1269         }
1270         if (!on && zr->overlay_active != ZORAN_FREE &&
1271             fh->overlay_active == ZORAN_FREE) {
1272                 dprintk(1,
1273                         KERN_ERR
1274                         "%s: %s - you cannot cancel someone else's session\n",
1275                         ZR_DEVNAME(zr), __func__);
1276                 return -EPERM;
1277         }
1278
1279         if (on == 0) {
1280                 zr->overlay_active = fh->overlay_active = ZORAN_FREE;
1281                 zr->v4l_overlay_active = 0;
1282                 /* When a grab is running, the video simply
1283                  * won't be switched on any more */
1284                 if (!zr->v4l_memgrab_active)
1285                         zr36057_overlay(zr, 0);
1286                 zr->overlay_mask = NULL;
1287         } else {
1288                 if (!zr->vbuf_base || !fh->overlay_settings.is_set) {
1289                         dprintk(1,
1290                                 KERN_ERR
1291                                 "%s: %s - buffer or window not set\n",
1292                                 ZR_DEVNAME(zr), __func__);
1293                         return -EINVAL;
1294                 }
1295                 if (!fh->overlay_settings.format) {
1296                         dprintk(1,
1297                                 KERN_ERR
1298                                 "%s: %s - no overlay format set\n",
1299                                 ZR_DEVNAME(zr), __func__);
1300                         return -EINVAL;
1301                 }
1302                 zr->overlay_active = fh->overlay_active = ZORAN_LOCKED;
1303                 zr->v4l_overlay_active = 1;
1304                 zr->overlay_mask = fh->overlay_mask;
1305                 zr->overlay_settings = fh->overlay_settings;
1306                 if (!zr->v4l_memgrab_active)
1307                         zr36057_overlay(zr, 1);
1308                 /* When a grab is running, the video will be
1309                  * switched on when grab is finished */
1310         }
1311
1312         /* Make sure the changes come into effect */
1313         return wait_grab_pending(zr);
1314 }
1315
1316 /* get the status of a buffer in the clients buffer queue */
1317 static int zoran_v4l2_buffer_status(struct zoran_fh *fh,
1318                                     struct v4l2_buffer *buf, int num)
1319 {
1320         struct zoran *zr = fh->zr;
1321         unsigned long flags;
1322
1323         buf->flags = V4L2_BUF_FLAG_MAPPED | V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1324
1325         switch (fh->map_mode) {
1326         case ZORAN_MAP_MODE_RAW:
1327                 /* check range */
1328                 if (num < 0 || num >= fh->buffers.num_buffers ||
1329                     !fh->buffers.allocated) {
1330                         dprintk(1,
1331                                 KERN_ERR
1332                                 "%s: %s - wrong number or buffers not allocated\n",
1333                                 ZR_DEVNAME(zr), __func__);
1334                         return -EINVAL;
1335                 }
1336
1337                 spin_lock_irqsave(&zr->spinlock, flags);
1338                 dprintk(3,
1339                         KERN_DEBUG
1340                         "%s: %s() - raw active=%c, buffer %d: state=%c, map=%c\n",
1341                         ZR_DEVNAME(zr), __func__,
1342                         "FAL"[fh->buffers.active], num,
1343                         "UPMD"[zr->v4l_buffers.buffer[num].state],
1344                         fh->buffers.buffer[num].map ? 'Y' : 'N');
1345                 spin_unlock_irqrestore(&zr->spinlock, flags);
1346
1347                 buf->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
1348                 buf->length = fh->buffers.buffer_size;
1349
1350                 /* get buffer */
1351                 buf->bytesused = fh->buffers.buffer[num].bs.length;
1352                 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
1353                     fh->buffers.buffer[num].state == BUZ_STATE_USER) {
1354                         buf->sequence = fh->buffers.buffer[num].bs.seq;
1355                         buf->flags |= V4L2_BUF_FLAG_DONE;
1356                         buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
1357                 } else {
1358                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1359                 }
1360
1361                 if (fh->v4l_settings.height <= BUZ_MAX_HEIGHT / 2)
1362                         buf->field = V4L2_FIELD_TOP;
1363                 else
1364                         buf->field = V4L2_FIELD_INTERLACED;
1365
1366                 break;
1367
1368         case ZORAN_MAP_MODE_JPG_REC:
1369         case ZORAN_MAP_MODE_JPG_PLAY:
1370
1371                 /* check range */
1372                 if (num < 0 || num >= fh->buffers.num_buffers ||
1373                     !fh->buffers.allocated) {
1374                         dprintk(1,
1375                                 KERN_ERR
1376                                 "%s: %s - wrong number or buffers not allocated\n",
1377                                 ZR_DEVNAME(zr), __func__);
1378                         return -EINVAL;
1379                 }
1380
1381                 buf->type = (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
1382                               V4L2_BUF_TYPE_VIDEO_CAPTURE :
1383                               V4L2_BUF_TYPE_VIDEO_OUTPUT;
1384                 buf->length = fh->buffers.buffer_size;
1385
1386                 /* these variables are only written after frame has been captured */
1387                 if (fh->buffers.buffer[num].state == BUZ_STATE_DONE ||
1388                     fh->buffers.buffer[num].state == BUZ_STATE_USER) {
1389                         buf->sequence = fh->buffers.buffer[num].bs.seq;
1390                         buf->timestamp = fh->buffers.buffer[num].bs.timestamp;
1391                         buf->bytesused = fh->buffers.buffer[num].bs.length;
1392                         buf->flags |= V4L2_BUF_FLAG_DONE;
1393                 } else {
1394                         buf->flags |= V4L2_BUF_FLAG_QUEUED;
1395                 }
1396
1397                 /* which fields are these? */
1398                 if (fh->jpg_settings.TmpDcm != 1)
1399                         buf->field = fh->jpg_settings.odd_even ?
1400                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM;
1401                 else
1402                         buf->field = fh->jpg_settings.odd_even ?
1403                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT;
1404
1405                 break;
1406
1407         default:
1408
1409                 dprintk(5,
1410                         KERN_ERR
1411                         "%s: %s - invalid buffer type|map_mode (%d|%d)\n",
1412                         ZR_DEVNAME(zr), __func__, buf->type, fh->map_mode);
1413                 return -EINVAL;
1414         }
1415
1416         buf->memory = V4L2_MEMORY_MMAP;
1417         buf->index = num;
1418         buf->m.offset = buf->length * num;
1419
1420         return 0;
1421 }
1422
1423 static int
1424 zoran_set_norm (struct zoran *zr,
1425                 v4l2_std_id norm)
1426 {
1427         int on;
1428
1429         if (zr->v4l_buffers.active != ZORAN_FREE ||
1430             zr->jpg_buffers.active != ZORAN_FREE) {
1431                 dprintk(1,
1432                         KERN_WARNING
1433                         "%s: %s called while in playback/capture mode\n",
1434                         ZR_DEVNAME(zr), __func__);
1435                 return -EBUSY;
1436         }
1437
1438         if (!(norm & zr->card.norms)) {
1439                 dprintk(1,
1440                         KERN_ERR "%s: %s - unsupported norm %llx\n",
1441                         ZR_DEVNAME(zr), __func__, norm);
1442                 return -EINVAL;
1443         }
1444
1445         if (norm & V4L2_STD_SECAM)
1446                 zr->timing = zr->card.tvn[2];
1447         else if (norm & V4L2_STD_NTSC)
1448                 zr->timing = zr->card.tvn[1];
1449         else
1450                 zr->timing = zr->card.tvn[0];
1451
1452         /* We switch overlay off and on since a change in the
1453          * norm needs different VFE settings */
1454         on = zr->overlay_active && !zr->v4l_memgrab_active;
1455         if (on)
1456                 zr36057_overlay(zr, 0);
1457
1458         decoder_call(zr, video, s_std, norm);
1459         encoder_call(zr, video, s_std_output, norm);
1460
1461         if (on)
1462                 zr36057_overlay(zr, 1);
1463
1464         /* Make sure the changes come into effect */
1465         zr->norm = norm;
1466
1467         return 0;
1468 }
1469
1470 static int
1471 zoran_set_input (struct zoran *zr,
1472                  int           input)
1473 {
1474         if (input == zr->input) {
1475                 return 0;
1476         }
1477
1478         if (zr->v4l_buffers.active != ZORAN_FREE ||
1479             zr->jpg_buffers.active != ZORAN_FREE) {
1480                 dprintk(1,
1481                         KERN_WARNING
1482                         "%s: %s called while in playback/capture mode\n",
1483                         ZR_DEVNAME(zr), __func__);
1484                 return -EBUSY;
1485         }
1486
1487         if (input < 0 || input >= zr->card.inputs) {
1488                 dprintk(1,
1489                         KERN_ERR
1490                         "%s: %s - unsupported input %d\n",
1491                         ZR_DEVNAME(zr), __func__, input);
1492                 return -EINVAL;
1493         }
1494
1495         zr->input = input;
1496
1497         decoder_call(zr, video, s_routing,
1498                         zr->card.input[input].muxsel, 0, 0);
1499
1500         return 0;
1501 }
1502
1503 /*
1504  *   ioctl routine
1505  */
1506
1507 static int zoran_querycap(struct file *file, void *__fh, struct v4l2_capability *cap)
1508 {
1509         struct zoran_fh *fh = __fh;
1510         struct zoran *zr = fh->zr;
1511
1512         strncpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card)-1);
1513         strncpy(cap->driver, "zoran", sizeof(cap->driver)-1);
1514         snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s",
1515                  pci_name(zr->pci_dev));
1516         cap->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_CAPTURE |
1517                            V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_VIDEO_OVERLAY;
1518         cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
1519         return 0;
1520 }
1521
1522 static int zoran_enum_fmt(struct zoran *zr, struct v4l2_fmtdesc *fmt, int flag)
1523 {
1524         unsigned int num, i;
1525
1526         for (num = i = 0; i < NUM_FORMATS; i++) {
1527                 if (zoran_formats[i].flags & flag && num++ == fmt->index) {
1528                         strncpy(fmt->description, zoran_formats[i].name,
1529                                 sizeof(fmt->description) - 1);
1530                         /* fmt struct pre-zeroed, so adding '\0' not needed */
1531                         fmt->pixelformat = zoran_formats[i].fourcc;
1532                         if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
1533                                 fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
1534                         return 0;
1535                 }
1536         }
1537         return -EINVAL;
1538 }
1539
1540 static int zoran_enum_fmt_vid_cap(struct file *file, void *__fh,
1541                                             struct v4l2_fmtdesc *f)
1542 {
1543         struct zoran_fh *fh = __fh;
1544         struct zoran *zr = fh->zr;
1545
1546         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_CAPTURE);
1547 }
1548
1549 static int zoran_enum_fmt_vid_out(struct file *file, void *__fh,
1550                                             struct v4l2_fmtdesc *f)
1551 {
1552         struct zoran_fh *fh = __fh;
1553         struct zoran *zr = fh->zr;
1554
1555         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_PLAYBACK);
1556 }
1557
1558 static int zoran_enum_fmt_vid_overlay(struct file *file, void *__fh,
1559                                             struct v4l2_fmtdesc *f)
1560 {
1561         struct zoran_fh *fh = __fh;
1562         struct zoran *zr = fh->zr;
1563
1564         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_OVERLAY);
1565 }
1566
1567 static int zoran_g_fmt_vid_out(struct file *file, void *__fh,
1568                                         struct v4l2_format *fmt)
1569 {
1570         struct zoran_fh *fh = __fh;
1571
1572         fmt->fmt.pix.width = fh->jpg_settings.img_width / fh->jpg_settings.HorDcm;
1573         fmt->fmt.pix.height = fh->jpg_settings.img_height * 2 /
1574                 (fh->jpg_settings.VerDcm * fh->jpg_settings.TmpDcm);
1575         fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1576         fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
1577         if (fh->jpg_settings.TmpDcm == 1)
1578                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1579                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1580         else
1581                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1582                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1583         fmt->fmt.pix.bytesperline = 0;
1584         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1585
1586         return 0;
1587 }
1588
1589 static int zoran_g_fmt_vid_cap(struct file *file, void *__fh,
1590                                         struct v4l2_format *fmt)
1591 {
1592         struct zoran_fh *fh = __fh;
1593         struct zoran *zr = fh->zr;
1594
1595         if (fh->map_mode != ZORAN_MAP_MODE_RAW)
1596                 return zoran_g_fmt_vid_out(file, fh, fmt);
1597
1598         fmt->fmt.pix.width = fh->v4l_settings.width;
1599         fmt->fmt.pix.height = fh->v4l_settings.height;
1600         fmt->fmt.pix.sizeimage = fh->v4l_settings.bytesperline *
1601                                         fh->v4l_settings.height;
1602         fmt->fmt.pix.pixelformat = fh->v4l_settings.format->fourcc;
1603         fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
1604         fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
1605         if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
1606                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
1607         else
1608                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
1609         return 0;
1610 }
1611
1612 static int zoran_g_fmt_vid_overlay(struct file *file, void *__fh,
1613                                         struct v4l2_format *fmt)
1614 {
1615         struct zoran_fh *fh = __fh;
1616         struct zoran *zr = fh->zr;
1617
1618         fmt->fmt.win.w.left = fh->overlay_settings.x;
1619         fmt->fmt.win.w.top = fh->overlay_settings.y;
1620         fmt->fmt.win.w.width = fh->overlay_settings.width;
1621         fmt->fmt.win.w.height = fh->overlay_settings.height;
1622         if (fh->overlay_settings.width * 2 > BUZ_MAX_HEIGHT)
1623                 fmt->fmt.win.field = V4L2_FIELD_INTERLACED;
1624         else
1625                 fmt->fmt.win.field = V4L2_FIELD_TOP;
1626
1627         return 0;
1628 }
1629
1630 static int zoran_try_fmt_vid_overlay(struct file *file, void *__fh,
1631                                         struct v4l2_format *fmt)
1632 {
1633         struct zoran_fh *fh = __fh;
1634         struct zoran *zr = fh->zr;
1635
1636         if (fmt->fmt.win.w.width > BUZ_MAX_WIDTH)
1637                 fmt->fmt.win.w.width = BUZ_MAX_WIDTH;
1638         if (fmt->fmt.win.w.width < BUZ_MIN_WIDTH)
1639                 fmt->fmt.win.w.width = BUZ_MIN_WIDTH;
1640         if (fmt->fmt.win.w.height > BUZ_MAX_HEIGHT)
1641                 fmt->fmt.win.w.height = BUZ_MAX_HEIGHT;
1642         if (fmt->fmt.win.w.height < BUZ_MIN_HEIGHT)
1643                 fmt->fmt.win.w.height = BUZ_MIN_HEIGHT;
1644
1645         return 0;
1646 }
1647
1648 static int zoran_try_fmt_vid_out(struct file *file, void *__fh,
1649                                         struct v4l2_format *fmt)
1650 {
1651         struct zoran_fh *fh = __fh;
1652         struct zoran *zr = fh->zr;
1653         struct zoran_jpg_settings settings;
1654         int res = 0;
1655
1656         if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
1657                 return -EINVAL;
1658
1659         settings = fh->jpg_settings;
1660
1661         /* we actually need to set 'real' parameters now */
1662         if ((fmt->fmt.pix.height * 2) > BUZ_MAX_HEIGHT)
1663                 settings.TmpDcm = 1;
1664         else
1665                 settings.TmpDcm = 2;
1666         settings.decimation = 0;
1667         if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
1668                 settings.VerDcm = 2;
1669         else
1670                 settings.VerDcm = 1;
1671         if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
1672                 settings.HorDcm = 4;
1673         else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
1674                 settings.HorDcm = 2;
1675         else
1676                 settings.HorDcm = 1;
1677         if (settings.TmpDcm == 1)
1678                 settings.field_per_buff = 2;
1679         else
1680                 settings.field_per_buff = 1;
1681
1682         if (settings.HorDcm > 1) {
1683                 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
1684                 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
1685         } else {
1686                 settings.img_x = 0;
1687                 settings.img_width = BUZ_MAX_WIDTH;
1688         }
1689
1690         /* check */
1691         res = zoran_check_jpg_settings(zr, &settings, 1);
1692         if (res)
1693                 return res;
1694
1695         /* tell the user what we actually did */
1696         fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
1697         fmt->fmt.pix.height = settings.img_height * 2 /
1698                 (settings.TmpDcm * settings.VerDcm);
1699         if (settings.TmpDcm == 1)
1700                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1701                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1702         else
1703                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1704                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1705
1706         fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&settings);
1707         fmt->fmt.pix.bytesperline = 0;
1708         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1709         return res;
1710 }
1711
1712 static int zoran_try_fmt_vid_cap(struct file *file, void *__fh,
1713                                         struct v4l2_format *fmt)
1714 {
1715         struct zoran_fh *fh = __fh;
1716         struct zoran *zr = fh->zr;
1717         int bpp;
1718         int i;
1719
1720         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
1721                 return zoran_try_fmt_vid_out(file, fh, fmt);
1722
1723         for (i = 0; i < NUM_FORMATS; i++)
1724                 if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat)
1725                         break;
1726
1727         if (i == NUM_FORMATS)
1728                 return -EINVAL;
1729
1730         bpp = DIV_ROUND_UP(zoran_formats[i].depth, 8);
1731         v4l_bound_align_image(
1732                 &fmt->fmt.pix.width, BUZ_MIN_WIDTH, BUZ_MAX_WIDTH, bpp == 2 ? 1 : 2,
1733                 &fmt->fmt.pix.height, BUZ_MIN_HEIGHT, BUZ_MAX_HEIGHT, 0, 0);
1734         return 0;
1735 }
1736
1737 static int zoran_s_fmt_vid_overlay(struct file *file, void *__fh,
1738                                         struct v4l2_format *fmt)
1739 {
1740         struct zoran_fh *fh = __fh;
1741         int res;
1742
1743         dprintk(3, "x=%d, y=%d, w=%d, h=%d, cnt=%d, map=0x%p\n",
1744                         fmt->fmt.win.w.left, fmt->fmt.win.w.top,
1745                         fmt->fmt.win.w.width,
1746                         fmt->fmt.win.w.height,
1747                         fmt->fmt.win.clipcount,
1748                         fmt->fmt.win.bitmap);
1749         res = setup_window(fh, fmt->fmt.win.w.left, fmt->fmt.win.w.top,
1750                            fmt->fmt.win.w.width, fmt->fmt.win.w.height,
1751                            (struct v4l2_clip __user *)fmt->fmt.win.clips,
1752                            fmt->fmt.win.clipcount, fmt->fmt.win.bitmap);
1753         return res;
1754 }
1755
1756 static int zoran_s_fmt_vid_out(struct file *file, void *__fh,
1757                                         struct v4l2_format *fmt)
1758 {
1759         struct zoran_fh *fh = __fh;
1760         struct zoran *zr = fh->zr;
1761         __le32 printformat = __cpu_to_le32(fmt->fmt.pix.pixelformat);
1762         struct zoran_jpg_settings settings;
1763         int res = 0;
1764
1765         dprintk(3, "size=%dx%d, fmt=0x%x (%4.4s)\n",
1766                         fmt->fmt.pix.width, fmt->fmt.pix.height,
1767                         fmt->fmt.pix.pixelformat,
1768                         (char *) &printformat);
1769         if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
1770                 return -EINVAL;
1771
1772         if (fh->buffers.allocated) {
1773                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
1774                         ZR_DEVNAME(zr));
1775                 res = -EBUSY;
1776                 return res;
1777         }
1778
1779         settings = fh->jpg_settings;
1780
1781         /* we actually need to set 'real' parameters now */
1782         if (fmt->fmt.pix.height * 2 > BUZ_MAX_HEIGHT)
1783                 settings.TmpDcm = 1;
1784         else
1785                 settings.TmpDcm = 2;
1786         settings.decimation = 0;
1787         if (fmt->fmt.pix.height <= fh->jpg_settings.img_height / 2)
1788                 settings.VerDcm = 2;
1789         else
1790                 settings.VerDcm = 1;
1791         if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 4)
1792                 settings.HorDcm = 4;
1793         else if (fmt->fmt.pix.width <= fh->jpg_settings.img_width / 2)
1794                 settings.HorDcm = 2;
1795         else
1796                 settings.HorDcm = 1;
1797         if (settings.TmpDcm == 1)
1798                 settings.field_per_buff = 2;
1799         else
1800                 settings.field_per_buff = 1;
1801
1802         if (settings.HorDcm > 1) {
1803                 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
1804                 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
1805         } else {
1806                 settings.img_x = 0;
1807                 settings.img_width = BUZ_MAX_WIDTH;
1808         }
1809
1810         /* check */
1811         res = zoran_check_jpg_settings(zr, &settings, 0);
1812         if (res)
1813                 return res;
1814
1815         /* it's ok, so set them */
1816         fh->jpg_settings = settings;
1817
1818         map_mode_jpg(fh, fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
1819         fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1820
1821         /* tell the user what we actually did */
1822         fmt->fmt.pix.width = settings.img_width / settings.HorDcm;
1823         fmt->fmt.pix.height = settings.img_height * 2 /
1824                 (settings.TmpDcm * settings.VerDcm);
1825         if (settings.TmpDcm == 1)
1826                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1827                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
1828         else
1829                 fmt->fmt.pix.field = (fh->jpg_settings.odd_even ?
1830                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
1831         fmt->fmt.pix.bytesperline = 0;
1832         fmt->fmt.pix.sizeimage = fh->buffers.buffer_size;
1833         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
1834         return res;
1835 }
1836
1837 static int zoran_s_fmt_vid_cap(struct file *file, void *__fh,
1838                                         struct v4l2_format *fmt)
1839 {
1840         struct zoran_fh *fh = __fh;
1841         struct zoran *zr = fh->zr;
1842         int i;
1843         int res = 0;
1844
1845         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
1846                 return zoran_s_fmt_vid_out(file, fh, fmt);
1847
1848         for (i = 0; i < NUM_FORMATS; i++)
1849                 if (fmt->fmt.pix.pixelformat == zoran_formats[i].fourcc)
1850                         break;
1851         if (i == NUM_FORMATS) {
1852                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - unknown/unsupported format 0x%x\n",
1853                         ZR_DEVNAME(zr), fmt->fmt.pix.pixelformat);
1854                 return -EINVAL;
1855         }
1856
1857         if ((fh->map_mode != ZORAN_MAP_MODE_RAW && fh->buffers.allocated) ||
1858             fh->buffers.active != ZORAN_FREE) {
1859                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FMT - cannot change capture mode\n",
1860                                 ZR_DEVNAME(zr));
1861                 res = -EBUSY;
1862                 return res;
1863         }
1864         if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
1865                 fmt->fmt.pix.height = BUZ_MAX_HEIGHT;
1866         if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
1867                 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
1868
1869         map_mode_raw(fh);
1870
1871         res = zoran_v4l_set_format(fh, fmt->fmt.pix.width, fmt->fmt.pix.height,
1872                                    &zoran_formats[i]);
1873         if (res)
1874                 return res;
1875
1876         /* tell the user the results/missing stuff */
1877         fmt->fmt.pix.bytesperline = fh->v4l_settings.bytesperline;
1878         fmt->fmt.pix.sizeimage = fh->v4l_settings.height * fh->v4l_settings.bytesperline;
1879         fmt->fmt.pix.colorspace = fh->v4l_settings.format->colorspace;
1880         if (BUZ_MAX_HEIGHT < (fh->v4l_settings.height * 2))
1881                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
1882         else
1883                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
1884         return res;
1885 }
1886
1887 static int zoran_g_fbuf(struct file *file, void *__fh,
1888                 struct v4l2_framebuffer *fb)
1889 {
1890         struct zoran_fh *fh = __fh;
1891         struct zoran *zr = fh->zr;
1892
1893         memset(fb, 0, sizeof(*fb));
1894         fb->base = zr->vbuf_base;
1895         fb->fmt.width = zr->vbuf_width;
1896         fb->fmt.height = zr->vbuf_height;
1897         if (zr->overlay_settings.format)
1898                 fb->fmt.pixelformat = fh->overlay_settings.format->fourcc;
1899         fb->fmt.bytesperline = zr->vbuf_bytesperline;
1900         fb->fmt.colorspace = V4L2_COLORSPACE_SRGB;
1901         fb->fmt.field = V4L2_FIELD_INTERLACED;
1902         fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
1903
1904         return 0;
1905 }
1906
1907 static int zoran_s_fbuf(struct file *file, void *__fh,
1908                 const struct v4l2_framebuffer *fb)
1909 {
1910         struct zoran_fh *fh = __fh;
1911         struct zoran *zr = fh->zr;
1912         int i, res = 0;
1913         __le32 printformat = __cpu_to_le32(fb->fmt.pixelformat);
1914
1915         for (i = 0; i < NUM_FORMATS; i++)
1916                 if (zoran_formats[i].fourcc == fb->fmt.pixelformat)
1917                         break;
1918         if (i == NUM_FORMATS) {
1919                 dprintk(1, KERN_ERR "%s: VIDIOC_S_FBUF - format=0x%x (%4.4s) not allowed\n",
1920                         ZR_DEVNAME(zr), fb->fmt.pixelformat,
1921                         (char *)&printformat);
1922                 return -EINVAL;
1923         }
1924
1925         res = setup_fbuffer(fh, fb->base, &zoran_formats[i], fb->fmt.width,
1926                             fb->fmt.height, fb->fmt.bytesperline);
1927
1928         return res;
1929 }
1930
1931 static int zoran_overlay(struct file *file, void *__fh, unsigned int on)
1932 {
1933         struct zoran_fh *fh = __fh;
1934         int res;
1935
1936         res = setup_overlay(fh, on);
1937
1938         return res;
1939 }
1940
1941 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type);
1942
1943 static int zoran_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *req)
1944 {
1945         struct zoran_fh *fh = __fh;
1946         struct zoran *zr = fh->zr;
1947         int res = 0;
1948
1949         if (req->memory != V4L2_MEMORY_MMAP) {
1950                 dprintk(2,
1951                                 KERN_ERR
1952                                 "%s: only MEMORY_MMAP capture is supported, not %d\n",
1953                                 ZR_DEVNAME(zr), req->memory);
1954                 return -EINVAL;
1955         }
1956
1957         if (req->count == 0)
1958                 return zoran_streamoff(file, fh, req->type);
1959
1960         if (fh->buffers.allocated) {
1961                 dprintk(2,
1962                                 KERN_ERR
1963                                 "%s: VIDIOC_REQBUFS - buffers already allocated\n",
1964                                 ZR_DEVNAME(zr));
1965                 res = -EBUSY;
1966                 return res;
1967         }
1968
1969         if (fh->map_mode == ZORAN_MAP_MODE_RAW &&
1970             req->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
1971                 /* control user input */
1972                 if (req->count < 2)
1973                         req->count = 2;
1974                 if (req->count > v4l_nbufs)
1975                         req->count = v4l_nbufs;
1976
1977                 /* The next mmap will map the V4L buffers */
1978                 map_mode_raw(fh);
1979                 fh->buffers.num_buffers = req->count;
1980
1981                 if (v4l_fbuffer_alloc(fh)) {
1982                         res = -ENOMEM;
1983                         return res;
1984                 }
1985         } else if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC ||
1986                    fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
1987                 /* we need to calculate size ourselves now */
1988                 if (req->count < 4)
1989                         req->count = 4;
1990                 if (req->count > jpg_nbufs)
1991                         req->count = jpg_nbufs;
1992
1993                 /* The next mmap will map the MJPEG buffers */
1994                 map_mode_jpg(fh, req->type == V4L2_BUF_TYPE_VIDEO_OUTPUT);
1995                 fh->buffers.num_buffers = req->count;
1996                 fh->buffers.buffer_size = zoran_v4l2_calc_bufsize(&fh->jpg_settings);
1997
1998                 if (jpg_fbuffer_alloc(fh)) {
1999                         res = -ENOMEM;
2000                         return res;
2001                 }
2002         } else {
2003                 dprintk(1,
2004                                 KERN_ERR
2005                                 "%s: VIDIOC_REQBUFS - unknown type %d\n",
2006                                 ZR_DEVNAME(zr), req->type);
2007                 res = -EINVAL;
2008                 return res;
2009         }
2010         return res;
2011 }
2012
2013 static int zoran_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2014 {
2015         struct zoran_fh *fh = __fh;
2016         int res;
2017
2018         res = zoran_v4l2_buffer_status(fh, buf, buf->index);
2019
2020         return res;
2021 }
2022
2023 static int zoran_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2024 {
2025         struct zoran_fh *fh = __fh;
2026         struct zoran *zr = fh->zr;
2027         int res = 0, codec_mode, buf_type;
2028
2029         switch (fh->map_mode) {
2030         case ZORAN_MAP_MODE_RAW:
2031                 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2032                         dprintk(1, KERN_ERR
2033                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2034                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2035                         res = -EINVAL;
2036                         return res;
2037                 }
2038
2039                 res = zoran_v4l_queue_frame(fh, buf->index);
2040                 if (res)
2041                         return res;
2042                 if (!zr->v4l_memgrab_active && fh->buffers.active == ZORAN_LOCKED)
2043                         zr36057_set_memgrab(zr, 1);
2044                 break;
2045
2046         case ZORAN_MAP_MODE_JPG_REC:
2047         case ZORAN_MAP_MODE_JPG_PLAY:
2048                 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY) {
2049                         buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2050                         codec_mode = BUZ_MODE_MOTION_DECOMPRESS;
2051                 } else {
2052                         buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2053                         codec_mode = BUZ_MODE_MOTION_COMPRESS;
2054                 }
2055
2056                 if (buf->type != buf_type) {
2057                         dprintk(1, KERN_ERR
2058                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2059                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2060                         res = -EINVAL;
2061                         return res;
2062                 }
2063
2064                 res = zoran_jpg_queue_frame(fh, buf->index, codec_mode);
2065                 if (res != 0)
2066                         return res;
2067                 if (zr->codec_mode == BUZ_MODE_IDLE &&
2068                     fh->buffers.active == ZORAN_LOCKED)
2069                         zr36057_enable_jpg(zr, codec_mode);
2070
2071                 break;
2072
2073         default:
2074                 dprintk(1, KERN_ERR
2075                         "%s: VIDIOC_QBUF - unsupported type %d\n",
2076                         ZR_DEVNAME(zr), buf->type);
2077                 res = -EINVAL;
2078                 break;
2079         }
2080         return res;
2081 }
2082
2083 static int zoran_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
2084 {
2085         struct zoran_fh *fh = __fh;
2086         struct zoran *zr = fh->zr;
2087         int res = 0, buf_type, num = -1;        /* compiler borks here (?) */
2088
2089         switch (fh->map_mode) {
2090         case ZORAN_MAP_MODE_RAW:
2091                 if (buf->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
2092                         dprintk(1, KERN_ERR
2093                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2094                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2095                         res = -EINVAL;
2096                         return res;
2097                 }
2098
2099                 num = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
2100                 if (file->f_flags & O_NONBLOCK &&
2101                     zr->v4l_buffers.buffer[num].state != BUZ_STATE_DONE) {
2102                         res = -EAGAIN;
2103                         return res;
2104                 }
2105                 res = v4l_sync(fh, num);
2106                 if (res)
2107                         return res;
2108                 zr->v4l_sync_tail++;
2109                 res = zoran_v4l2_buffer_status(fh, buf, num);
2110                 break;
2111
2112         case ZORAN_MAP_MODE_JPG_REC:
2113         case ZORAN_MAP_MODE_JPG_PLAY:
2114         {
2115                 struct zoran_sync bs;
2116
2117                 if (fh->map_mode == ZORAN_MAP_MODE_JPG_PLAY)
2118                         buf_type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
2119                 else
2120                         buf_type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2121
2122                 if (buf->type != buf_type) {
2123                         dprintk(1, KERN_ERR
2124                                 "%s: VIDIOC_QBUF - invalid buf->type=%d for map_mode=%d\n",
2125                                 ZR_DEVNAME(zr), buf->type, fh->map_mode);
2126                         res = -EINVAL;
2127                         return res;
2128                 }
2129
2130                 num = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
2131
2132                 if (file->f_flags & O_NONBLOCK &&
2133                     zr->jpg_buffers.buffer[num].state != BUZ_STATE_DONE) {
2134                         res = -EAGAIN;
2135                         return res;
2136                 }
2137                 bs.frame = 0; /* suppress compiler warning */
2138                 res = jpg_sync(fh, &bs);
2139                 if (res)
2140                         return res;
2141                 res = zoran_v4l2_buffer_status(fh, buf, bs.frame);
2142                 break;
2143         }
2144
2145         default:
2146                 dprintk(1, KERN_ERR
2147                         "%s: VIDIOC_DQBUF - unsupported type %d\n",
2148                         ZR_DEVNAME(zr), buf->type);
2149                 res = -EINVAL;
2150                 break;
2151         }
2152         return res;
2153 }
2154
2155 static int zoran_streamon(struct file *file, void *__fh, enum v4l2_buf_type type)
2156 {
2157         struct zoran_fh *fh = __fh;
2158         struct zoran *zr = fh->zr;
2159         int res = 0;
2160
2161         switch (fh->map_mode) {
2162         case ZORAN_MAP_MODE_RAW:        /* raw capture */
2163                 if (zr->v4l_buffers.active != ZORAN_ACTIVE ||
2164                     fh->buffers.active != ZORAN_ACTIVE) {
2165                         res = -EBUSY;
2166                         return res;
2167                 }
2168
2169                 zr->v4l_buffers.active = fh->buffers.active = ZORAN_LOCKED;
2170                 zr->v4l_settings = fh->v4l_settings;
2171
2172                 zr->v4l_sync_tail = zr->v4l_pend_tail;
2173                 if (!zr->v4l_memgrab_active &&
2174                     zr->v4l_pend_head != zr->v4l_pend_tail) {
2175                         zr36057_set_memgrab(zr, 1);
2176                 }
2177                 break;
2178
2179         case ZORAN_MAP_MODE_JPG_REC:
2180         case ZORAN_MAP_MODE_JPG_PLAY:
2181                 /* what is the codec mode right now? */
2182                 if (zr->jpg_buffers.active != ZORAN_ACTIVE ||
2183                     fh->buffers.active != ZORAN_ACTIVE) {
2184                         res = -EBUSY;
2185                         return res;
2186                 }
2187
2188                 zr->jpg_buffers.active = fh->buffers.active = ZORAN_LOCKED;
2189
2190                 if (zr->jpg_que_head != zr->jpg_que_tail) {
2191                         /* Start the jpeg codec when the first frame is queued  */
2192                         jpeg_start(zr);
2193                 }
2194                 break;
2195
2196         default:
2197                 dprintk(1,
2198                         KERN_ERR
2199                         "%s: VIDIOC_STREAMON - invalid map mode %d\n",
2200                         ZR_DEVNAME(zr), fh->map_mode);
2201                 res = -EINVAL;
2202                 break;
2203         }
2204         return res;
2205 }
2206
2207 static int zoran_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type)
2208 {
2209         struct zoran_fh *fh = __fh;
2210         struct zoran *zr = fh->zr;
2211         int i, res = 0;
2212         unsigned long flags;
2213
2214         switch (fh->map_mode) {
2215         case ZORAN_MAP_MODE_RAW:        /* raw capture */
2216                 if (fh->buffers.active == ZORAN_FREE &&
2217                     zr->v4l_buffers.active != ZORAN_FREE) {
2218                         res = -EPERM;   /* stay off other's settings! */
2219                         return res;
2220                 }
2221                 if (zr->v4l_buffers.active == ZORAN_FREE)
2222                         return res;
2223
2224                 spin_lock_irqsave(&zr->spinlock, flags);
2225                 /* unload capture */
2226                 if (zr->v4l_memgrab_active) {
2227
2228                         zr36057_set_memgrab(zr, 0);
2229                 }
2230
2231                 for (i = 0; i < fh->buffers.num_buffers; i++)
2232                         zr->v4l_buffers.buffer[i].state = BUZ_STATE_USER;
2233                 fh->buffers = zr->v4l_buffers;
2234
2235                 zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
2236
2237                 zr->v4l_grab_seq = 0;
2238                 zr->v4l_pend_head = zr->v4l_pend_tail = 0;
2239                 zr->v4l_sync_tail = 0;
2240
2241                 spin_unlock_irqrestore(&zr->spinlock, flags);
2242
2243                 break;
2244
2245         case ZORAN_MAP_MODE_JPG_REC:
2246         case ZORAN_MAP_MODE_JPG_PLAY:
2247                 if (fh->buffers.active == ZORAN_FREE &&
2248                     zr->jpg_buffers.active != ZORAN_FREE) {
2249                         res = -EPERM;   /* stay off other's settings! */
2250                         return res;
2251                 }
2252                 if (zr->jpg_buffers.active == ZORAN_FREE)
2253                         return res;
2254
2255                 res = jpg_qbuf(fh, -1,
2256                              (fh->map_mode == ZORAN_MAP_MODE_JPG_REC) ?
2257                              BUZ_MODE_MOTION_COMPRESS :
2258                              BUZ_MODE_MOTION_DECOMPRESS);
2259                 if (res)
2260                         return res;
2261                 break;
2262         default:
2263                 dprintk(1, KERN_ERR
2264                         "%s: VIDIOC_STREAMOFF - invalid map mode %d\n",
2265                         ZR_DEVNAME(zr), fh->map_mode);
2266                 res = -EINVAL;
2267                 break;
2268         }
2269         return res;
2270 }
2271 static int zoran_g_std(struct file *file, void *__fh, v4l2_std_id *std)
2272 {
2273         struct zoran_fh *fh = __fh;
2274         struct zoran *zr = fh->zr;
2275
2276         *std = zr->norm;
2277         return 0;
2278 }
2279
2280 static int zoran_s_std(struct file *file, void *__fh, v4l2_std_id std)
2281 {
2282         struct zoran_fh *fh = __fh;
2283         struct zoran *zr = fh->zr;
2284         int res = 0;
2285
2286         res = zoran_set_norm(zr, std);
2287         if (res)
2288                 return res;
2289
2290         res = wait_grab_pending(zr);
2291         return res;
2292 }
2293
2294 static int zoran_enum_input(struct file *file, void *__fh,
2295                                  struct v4l2_input *inp)
2296 {
2297         struct zoran_fh *fh = __fh;
2298         struct zoran *zr = fh->zr;
2299
2300         if (inp->index >= zr->card.inputs)
2301                 return -EINVAL;
2302
2303         strncpy(inp->name, zr->card.input[inp->index].name,
2304                 sizeof(inp->name) - 1);
2305         inp->type = V4L2_INPUT_TYPE_CAMERA;
2306         inp->std = V4L2_STD_ALL;
2307
2308         /* Get status of video decoder */
2309         decoder_call(zr, video, g_input_status, &inp->status);
2310         return 0;
2311 }
2312
2313 static int zoran_g_input(struct file *file, void *__fh, unsigned int *input)
2314 {
2315         struct zoran_fh *fh = __fh;
2316         struct zoran *zr = fh->zr;
2317
2318         *input = zr->input;
2319
2320         return 0;
2321 }
2322
2323 static int zoran_s_input(struct file *file, void *__fh, unsigned int input)
2324 {
2325         struct zoran_fh *fh = __fh;
2326         struct zoran *zr = fh->zr;
2327         int res;
2328
2329         res = zoran_set_input(zr, input);
2330         if (res)
2331                 return res;
2332
2333         /* Make sure the changes come into effect */
2334         res = wait_grab_pending(zr);
2335         return res;
2336 }
2337
2338 static int zoran_enum_output(struct file *file, void *__fh,
2339                                   struct v4l2_output *outp)
2340 {
2341         if (outp->index != 0)
2342                 return -EINVAL;
2343
2344         outp->index = 0;
2345         outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
2346         strncpy(outp->name, "Autodetect", sizeof(outp->name)-1);
2347
2348         return 0;
2349 }
2350
2351 static int zoran_g_output(struct file *file, void *__fh, unsigned int *output)
2352 {
2353         *output = 0;
2354
2355         return 0;
2356 }
2357
2358 static int zoran_s_output(struct file *file, void *__fh, unsigned int output)
2359 {
2360         if (output != 0)
2361                 return -EINVAL;
2362
2363         return 0;
2364 }
2365
2366 /* cropping (sub-frame capture) */
2367 static int zoran_g_selection(struct file *file, void *__fh, struct v4l2_selection *sel)
2368 {
2369         struct zoran_fh *fh = __fh;
2370         struct zoran *zr = fh->zr;
2371
2372         if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2373             sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
2374                 return -EINVAL;
2375
2376         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
2377                 dprintk(1, KERN_ERR
2378                         "%s: VIDIOC_G_SELECTION - subcapture only supported for compressed capture\n",
2379                         ZR_DEVNAME(zr));
2380                 return -EINVAL;
2381         }
2382
2383         switch (sel->target) {
2384         case V4L2_SEL_TGT_CROP:
2385                 sel->r.top = fh->jpg_settings.img_y;
2386                 sel->r.left = fh->jpg_settings.img_x;
2387                 sel->r.width = fh->jpg_settings.img_width;
2388                 sel->r.height = fh->jpg_settings.img_height;
2389                 break;
2390         case V4L2_SEL_TGT_CROP_DEFAULT:
2391                 sel->r.top = sel->r.left = 0;
2392                 sel->r.width = BUZ_MIN_WIDTH;
2393                 sel->r.height = BUZ_MIN_HEIGHT;
2394                 break;
2395         case V4L2_SEL_TGT_CROP_BOUNDS:
2396                 sel->r.top = sel->r.left = 0;
2397                 sel->r.width = BUZ_MAX_WIDTH;
2398                 sel->r.height = BUZ_MAX_HEIGHT;
2399                 break;
2400         default:
2401                 return -EINVAL;
2402         }
2403         return 0;
2404 }
2405
2406 static int zoran_s_selection(struct file *file, void *__fh, struct v4l2_selection *sel)
2407 {
2408         struct zoran_fh *fh = __fh;
2409         struct zoran *zr = fh->zr;
2410         struct zoran_jpg_settings settings;
2411         int res;
2412
2413         if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
2414             sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
2415                 return -EINVAL;
2416
2417         if (sel->target != V4L2_SEL_TGT_CROP)
2418                 return -EINVAL;
2419
2420         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
2421                 dprintk(1, KERN_ERR
2422                         "%s: VIDIOC_S_SELECTION - subcapture only supported for compressed capture\n",
2423                         ZR_DEVNAME(zr));
2424                 return -EINVAL;
2425         }
2426
2427         settings = fh->jpg_settings;
2428
2429         if (fh->buffers.allocated) {
2430                 dprintk(1, KERN_ERR
2431                         "%s: VIDIOC_S_SELECTION - cannot change settings while active\n",
2432                         ZR_DEVNAME(zr));
2433                 return -EBUSY;
2434         }
2435
2436         /* move into a form that we understand */
2437         settings.img_x = sel->r.left;
2438         settings.img_y = sel->r.top;
2439         settings.img_width = sel->r.width;
2440         settings.img_height = sel->r.height;
2441
2442         /* check validity */
2443         res = zoran_check_jpg_settings(zr, &settings, 0);
2444         if (res)
2445                 return res;
2446
2447         /* accept */
2448         fh->jpg_settings = settings;
2449         return res;
2450 }
2451
2452 static int zoran_g_jpegcomp(struct file *file, void *__fh,
2453                                         struct v4l2_jpegcompression *params)
2454 {
2455         struct zoran_fh *fh = __fh;
2456         memset(params, 0, sizeof(*params));
2457
2458         params->quality = fh->jpg_settings.jpg_comp.quality;
2459         params->APPn = fh->jpg_settings.jpg_comp.APPn;
2460         memcpy(params->APP_data,
2461                fh->jpg_settings.jpg_comp.APP_data,
2462                fh->jpg_settings.jpg_comp.APP_len);
2463         params->APP_len = fh->jpg_settings.jpg_comp.APP_len;
2464         memcpy(params->COM_data,
2465                fh->jpg_settings.jpg_comp.COM_data,
2466                fh->jpg_settings.jpg_comp.COM_len);
2467         params->COM_len = fh->jpg_settings.jpg_comp.COM_len;
2468         params->jpeg_markers =
2469             fh->jpg_settings.jpg_comp.jpeg_markers;
2470
2471         return 0;
2472 }
2473
2474 static int zoran_s_jpegcomp(struct file *file, void *__fh,
2475                                         const struct v4l2_jpegcompression *params)
2476 {
2477         struct zoran_fh *fh = __fh;
2478         struct zoran *zr = fh->zr;
2479         int res = 0;
2480         struct zoran_jpg_settings settings;
2481
2482         settings = fh->jpg_settings;
2483
2484         settings.jpg_comp = *params;
2485
2486         if (fh->buffers.active != ZORAN_FREE) {
2487                 dprintk(1, KERN_WARNING
2488                         "%s: VIDIOC_S_JPEGCOMP called while in playback/capture mode\n",
2489                         ZR_DEVNAME(zr));
2490                 res = -EBUSY;
2491                 return res;
2492         }
2493
2494         res = zoran_check_jpg_settings(zr, &settings, 0);
2495         if (res)
2496                 return res;
2497         if (!fh->buffers.allocated)
2498                 fh->buffers.buffer_size =
2499                         zoran_v4l2_calc_bufsize(&fh->jpg_settings);
2500         fh->jpg_settings.jpg_comp = settings.jpg_comp;
2501         return res;
2502 }
2503
2504 static __poll_t
2505 zoran_poll (struct file *file,
2506             poll_table  *wait)
2507 {
2508         struct zoran_fh *fh = file->private_data;
2509         struct zoran *zr = fh->zr;
2510         __poll_t res = v4l2_ctrl_poll(file, wait);
2511         int frame;
2512         unsigned long flags;
2513
2514         /* we should check whether buffers are ready to be synced on
2515          * (w/o waits - O_NONBLOCK) here
2516          * if ready for read (sync), return EPOLLIN|EPOLLRDNORM,
2517          * if ready for write (sync), return EPOLLOUT|EPOLLWRNORM,
2518          * if error, return EPOLLERR,
2519          * if no buffers queued or so, return EPOLLNVAL
2520          */
2521
2522         switch (fh->map_mode) {
2523         case ZORAN_MAP_MODE_RAW:
2524                 poll_wait(file, &zr->v4l_capq, wait);
2525                 frame = zr->v4l_pend[zr->v4l_sync_tail & V4L_MASK_FRAME];
2526
2527                 spin_lock_irqsave(&zr->spinlock, flags);
2528                 dprintk(3,
2529                         KERN_DEBUG
2530                         "%s: %s() raw - active=%c, sync_tail=%lu/%c, pend_tail=%lu, pend_head=%lu\n",
2531                         ZR_DEVNAME(zr), __func__,
2532                         "FAL"[fh->buffers.active], zr->v4l_sync_tail,
2533                         "UPMD"[zr->v4l_buffers.buffer[frame].state],
2534                         zr->v4l_pend_tail, zr->v4l_pend_head);
2535                 /* Process is the one capturing? */
2536                 if (fh->buffers.active != ZORAN_FREE &&
2537                     /* Buffer ready to DQBUF? */
2538                     zr->v4l_buffers.buffer[frame].state == BUZ_STATE_DONE)
2539                         res |= EPOLLIN | EPOLLRDNORM;
2540                 spin_unlock_irqrestore(&zr->spinlock, flags);
2541
2542                 break;
2543
2544         case ZORAN_MAP_MODE_JPG_REC:
2545         case ZORAN_MAP_MODE_JPG_PLAY:
2546                 poll_wait(file, &zr->jpg_capq, wait);
2547                 frame = zr->jpg_pend[zr->jpg_que_tail & BUZ_MASK_FRAME];
2548
2549                 spin_lock_irqsave(&zr->spinlock, flags);
2550                 dprintk(3,
2551                         KERN_DEBUG
2552                         "%s: %s() jpg - active=%c, que_tail=%lu/%c, que_head=%lu, dma=%lu/%lu\n",
2553                         ZR_DEVNAME(zr), __func__,
2554                         "FAL"[fh->buffers.active], zr->jpg_que_tail,
2555                         "UPMD"[zr->jpg_buffers.buffer[frame].state],
2556                         zr->jpg_que_head, zr->jpg_dma_tail, zr->jpg_dma_head);
2557                 if (fh->buffers.active != ZORAN_FREE &&
2558                     zr->jpg_buffers.buffer[frame].state == BUZ_STATE_DONE) {
2559                         if (fh->map_mode == ZORAN_MAP_MODE_JPG_REC)
2560                                 res |= EPOLLIN | EPOLLRDNORM;
2561                         else
2562                                 res |= EPOLLOUT | EPOLLWRNORM;
2563                 }
2564                 spin_unlock_irqrestore(&zr->spinlock, flags);
2565
2566                 break;
2567
2568         default:
2569                 dprintk(1,
2570                         KERN_ERR
2571                         "%s: %s - internal error, unknown map_mode=%d\n",
2572                         ZR_DEVNAME(zr), __func__, fh->map_mode);
2573                 res |= EPOLLERR;
2574         }
2575
2576         return res;
2577 }
2578
2579
2580 /*
2581  * This maps the buffers to user space.
2582  *
2583  * Depending on the state of fh->map_mode
2584  * the V4L or the MJPEG buffers are mapped
2585  * per buffer or all together
2586  *
2587  * Note that we need to connect to some
2588  * unmap signal event to unmap the de-allocate
2589  * the buffer accordingly (zoran_vm_close())
2590  */
2591
2592 static void
2593 zoran_vm_open (struct vm_area_struct *vma)
2594 {
2595         struct zoran_mapping *map = vma->vm_private_data;
2596         atomic_inc(&map->count);
2597 }
2598
2599 static void
2600 zoran_vm_close (struct vm_area_struct *vma)
2601 {
2602         struct zoran_mapping *map = vma->vm_private_data;
2603         struct zoran_fh *fh = map->fh;
2604         struct zoran *zr = fh->zr;
2605         int i;
2606
2607         dprintk(3, KERN_INFO "%s: %s - munmap(%s)\n", ZR_DEVNAME(zr),
2608                 __func__, mode_name(fh->map_mode));
2609
2610         for (i = 0; i < fh->buffers.num_buffers; i++) {
2611                 if (fh->buffers.buffer[i].map == map)
2612                         fh->buffers.buffer[i].map = NULL;
2613         }
2614         kfree(map);
2615
2616         /* Any buffers still mapped? */
2617         for (i = 0; i < fh->buffers.num_buffers; i++) {
2618                 if (fh->buffers.buffer[i].map) {
2619                         return;
2620                 }
2621         }
2622
2623         dprintk(3, KERN_INFO "%s: %s - free %s buffers\n", ZR_DEVNAME(zr),
2624                 __func__, mode_name(fh->map_mode));
2625
2626         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
2627                 if (fh->buffers.active != ZORAN_FREE) {
2628                         unsigned long flags;
2629
2630                         spin_lock_irqsave(&zr->spinlock, flags);
2631                         zr36057_set_memgrab(zr, 0);
2632                         zr->v4l_buffers.allocated = 0;
2633                         zr->v4l_buffers.active = fh->buffers.active = ZORAN_FREE;
2634                         spin_unlock_irqrestore(&zr->spinlock, flags);
2635                 }
2636                 v4l_fbuffer_free(fh);
2637         } else {
2638                 if (fh->buffers.active != ZORAN_FREE) {
2639                         jpg_qbuf(fh, -1, zr->codec_mode);
2640                         zr->jpg_buffers.allocated = 0;
2641                         zr->jpg_buffers.active = fh->buffers.active = ZORAN_FREE;
2642                 }
2643                 jpg_fbuffer_free(fh);
2644         }
2645 }
2646
2647 static const struct vm_operations_struct zoran_vm_ops = {
2648         .open = zoran_vm_open,
2649         .close = zoran_vm_close,
2650 };
2651
2652 static int
2653 zoran_mmap (struct file           *file,
2654             struct vm_area_struct *vma)
2655 {
2656         struct zoran_fh *fh = file->private_data;
2657         struct zoran *zr = fh->zr;
2658         unsigned long size = (vma->vm_end - vma->vm_start);
2659         unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
2660         int i, j;
2661         unsigned long page, start = vma->vm_start, todo, pos, fraglen;
2662         int first, last;
2663         struct zoran_mapping *map;
2664         int res = 0;
2665
2666         dprintk(3,
2667                 KERN_INFO "%s: %s(%s) of 0x%08lx-0x%08lx (size=%lu)\n",
2668                 ZR_DEVNAME(zr), __func__,
2669                 mode_name(fh->map_mode), vma->vm_start, vma->vm_end, size);
2670
2671         if (!(vma->vm_flags & VM_SHARED) || !(vma->vm_flags & VM_READ) ||
2672             !(vma->vm_flags & VM_WRITE)) {
2673                 dprintk(1,
2674                         KERN_ERR
2675                         "%s: %s - no MAP_SHARED/PROT_{READ,WRITE} given\n",
2676                         ZR_DEVNAME(zr), __func__);
2677                 return -EINVAL;
2678         }
2679
2680         if (!fh->buffers.allocated) {
2681                 dprintk(1,
2682                         KERN_ERR
2683                         "%s: %s(%s) - buffers not yet allocated\n",
2684                         ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode));
2685                 res = -ENOMEM;
2686                 return res;
2687         }
2688
2689         first = offset / fh->buffers.buffer_size;
2690         last = first - 1 + size / fh->buffers.buffer_size;
2691         if (offset % fh->buffers.buffer_size != 0 ||
2692             size % fh->buffers.buffer_size != 0 || first < 0 ||
2693             last < 0 || first >= fh->buffers.num_buffers ||
2694             last >= fh->buffers.buffer_size) {
2695                 dprintk(1,
2696                         KERN_ERR
2697                         "%s: %s(%s) - offset=%lu or size=%lu invalid for bufsize=%d and numbufs=%d\n",
2698                         ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), offset, size,
2699                         fh->buffers.buffer_size,
2700                         fh->buffers.num_buffers);
2701                 res = -EINVAL;
2702                 return res;
2703         }
2704
2705         /* Check if any buffers are already mapped */
2706         for (i = first; i <= last; i++) {
2707                 if (fh->buffers.buffer[i].map) {
2708                         dprintk(1,
2709                                 KERN_ERR
2710                                 "%s: %s(%s) - buffer %d already mapped\n",
2711                                 ZR_DEVNAME(zr), __func__, mode_name(fh->map_mode), i);
2712                         res = -EBUSY;
2713                         return res;
2714                 }
2715         }
2716
2717         /* map these buffers */
2718         map = kmalloc(sizeof(struct zoran_mapping), GFP_KERNEL);
2719         if (!map) {
2720                 res = -ENOMEM;
2721                 return res;
2722         }
2723         map->fh = fh;
2724         atomic_set(&map->count, 1);
2725
2726         vma->vm_ops = &zoran_vm_ops;
2727         vma->vm_flags |= VM_DONTEXPAND;
2728         vma->vm_private_data = map;
2729
2730         if (fh->map_mode == ZORAN_MAP_MODE_RAW) {
2731                 for (i = first; i <= last; i++) {
2732                         todo = size;
2733                         if (todo > fh->buffers.buffer_size)
2734                                 todo = fh->buffers.buffer_size;
2735                         page = fh->buffers.buffer[i].v4l.fbuffer_phys;
2736                         if (remap_pfn_range(vma, start, page >> PAGE_SHIFT,
2737                                                         todo, PAGE_SHARED)) {
2738                                 dprintk(1,
2739                                         KERN_ERR
2740                                         "%s: %s(V4L) - remap_pfn_range failed\n",
2741                                         ZR_DEVNAME(zr), __func__);
2742                                 res = -EAGAIN;
2743                                 return res;
2744                         }
2745                         size -= todo;
2746                         start += todo;
2747                         fh->buffers.buffer[i].map = map;
2748                         if (size == 0)
2749                                 break;
2750                 }
2751         } else {
2752                 for (i = first; i <= last; i++) {
2753                         for (j = 0;
2754                              j < fh->buffers.buffer_size / PAGE_SIZE;
2755                              j++) {
2756                                 fraglen =
2757                                     (le32_to_cpu(fh->buffers.buffer[i].jpg.
2758                                      frag_tab[2 * j + 1]) & ~1) << 1;
2759                                 todo = size;
2760                                 if (todo > fraglen)
2761                                         todo = fraglen;
2762                                 pos =
2763                                     le32_to_cpu(fh->buffers.
2764                                     buffer[i].jpg.frag_tab[2 * j]);
2765                                 /* should just be pos on i386 */
2766                                 page = virt_to_phys(bus_to_virt(pos))
2767                                                                 >> PAGE_SHIFT;
2768                                 if (remap_pfn_range(vma, start, page,
2769                                                         todo, PAGE_SHARED)) {
2770                                         dprintk(1,
2771                                                 KERN_ERR
2772                                                 "%s: %s(V4L) - remap_pfn_range failed\n",
2773                                                 ZR_DEVNAME(zr), __func__);
2774                                         res = -EAGAIN;
2775                                         return res;
2776                                 }
2777                                 size -= todo;
2778                                 start += todo;
2779                                 if (size == 0)
2780                                         break;
2781                                 if (le32_to_cpu(fh->buffers.buffer[i].jpg.
2782                                     frag_tab[2 * j + 1]) & 1)
2783                                         break;  /* was last fragment */
2784                         }
2785                         fh->buffers.buffer[i].map = map;
2786                         if (size == 0)
2787                                 break;
2788
2789                 }
2790         }
2791         return res;
2792 }
2793
2794 static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
2795         .vidioc_querycap                    = zoran_querycap,
2796         .vidioc_s_selection                 = zoran_s_selection,
2797         .vidioc_g_selection                 = zoran_g_selection,
2798         .vidioc_enum_input                  = zoran_enum_input,
2799         .vidioc_g_input                     = zoran_g_input,
2800         .vidioc_s_input                     = zoran_s_input,
2801         .vidioc_enum_output                 = zoran_enum_output,
2802         .vidioc_g_output                    = zoran_g_output,
2803         .vidioc_s_output                    = zoran_s_output,
2804         .vidioc_g_fbuf                      = zoran_g_fbuf,
2805         .vidioc_s_fbuf                      = zoran_s_fbuf,
2806         .vidioc_g_std                       = zoran_g_std,
2807         .vidioc_s_std                       = zoran_s_std,
2808         .vidioc_g_jpegcomp                  = zoran_g_jpegcomp,
2809         .vidioc_s_jpegcomp                  = zoran_s_jpegcomp,
2810         .vidioc_overlay                     = zoran_overlay,
2811         .vidioc_reqbufs                     = zoran_reqbufs,
2812         .vidioc_querybuf                    = zoran_querybuf,
2813         .vidioc_qbuf                        = zoran_qbuf,
2814         .vidioc_dqbuf                       = zoran_dqbuf,
2815         .vidioc_streamon                    = zoran_streamon,
2816         .vidioc_streamoff                   = zoran_streamoff,
2817         .vidioc_enum_fmt_vid_cap            = zoran_enum_fmt_vid_cap,
2818         .vidioc_enum_fmt_vid_out            = zoran_enum_fmt_vid_out,
2819         .vidioc_enum_fmt_vid_overlay        = zoran_enum_fmt_vid_overlay,
2820         .vidioc_g_fmt_vid_cap               = zoran_g_fmt_vid_cap,
2821         .vidioc_g_fmt_vid_out               = zoran_g_fmt_vid_out,
2822         .vidioc_g_fmt_vid_overlay           = zoran_g_fmt_vid_overlay,
2823         .vidioc_s_fmt_vid_cap               = zoran_s_fmt_vid_cap,
2824         .vidioc_s_fmt_vid_out               = zoran_s_fmt_vid_out,
2825         .vidioc_s_fmt_vid_overlay           = zoran_s_fmt_vid_overlay,
2826         .vidioc_try_fmt_vid_cap             = zoran_try_fmt_vid_cap,
2827         .vidioc_try_fmt_vid_out             = zoran_try_fmt_vid_out,
2828         .vidioc_try_fmt_vid_overlay         = zoran_try_fmt_vid_overlay,
2829         .vidioc_subscribe_event             = v4l2_ctrl_subscribe_event,
2830         .vidioc_unsubscribe_event           = v4l2_event_unsubscribe,
2831 };
2832
2833 static const struct v4l2_file_operations zoran_fops = {
2834         .owner = THIS_MODULE,
2835         .open = zoran_open,
2836         .release = zoran_close,
2837         .unlocked_ioctl = video_ioctl2,
2838         .mmap = zoran_mmap,
2839         .poll = zoran_poll,
2840 };
2841
2842 const struct video_device zoran_template = {
2843         .name = ZORAN_NAME,
2844         .fops = &zoran_fops,
2845         .ioctl_ops = &zoran_ioctl_ops,
2846         .release = &zoran_vdev_release,
2847         .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
2848 };
2849