zoran/zoran_driver.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Zoran zr36057/zr36067 PCI controller driver, for the
   4  * Pinnacle/Miro DC10/DC10+/DC30/DC30+, Iomega Buz, Linux
   5  * Media Labs LML33/LML33R10.
   6  *
   7  * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
   8  *
   9  * Changes for BUZ by Wolfgang Scherr <scherr@net4you.net>
  10  *
  11  * Changes for DC10/DC30 by Laurent Pinchart <laurent.pinchart@skynet.be>
  12  *
  13  * Changes for LML33R10 by Maxim Yevtyushkin <max@linuxmedialabs.com>
  14  *
  15  * Changes for videodev2/v4l2 by Ronald Bultje <rbultje@ronald.bitfreak.net>
  16  *
  17  * Based on
  18  *
  19  * Miro DC10 driver
  20  * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
  21  *
  22  * Iomega Buz driver version 1.0
  23  * Copyright (C) 1999 Rainer Johanni <Rainer@Johanni.de>
  24  *
  25  * buz.0.0.3
  26  * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
  27  *
  28  * bttv - Bt848 frame grabber driver
  29  * Copyright (C) 1996,97,98 Ralph  Metzler (rjkm@thp.uni-koeln.de)
  30  *                        & Marcus Metzler (mocm@thp.uni-koeln.de)
  31  */
  32
  33 #include <linux/init.h>
  34 #include <linux/module.h>
  35 #include <linux/delay.h>
  36 #include <linux/slab.h>
  37 #include <linux/pci.h>
  38 #include <linux/wait.h>
  39
  40 #include <linux/interrupt.h>
  41 #include <linux/i2c.h>
  42 #include <linux/i2c-algo-bit.h>
  43
  44 #include <linux/spinlock.h>
  45
  46 #include <linux/videodev2.h>
  47 #include <media/v4l2-common.h>
  48 #include <media/v4l2-ioctl.h>
  49 #include <media/v4l2-event.h>
  50 #include "videocodec.h"
  51
  52 #include <linux/io.h>
  53 #include <linux/uaccess.h>
  54
  55 #include <linux/mutex.h>
  56 #include "zoran.h"
  57 #include "zoran_device.h"
  58 #include "zoran_card.h"
  59
  60 const struct zoran_format zoran_formats[] = {
  61         {
  62                 .name = "15-bit RGB LE",
  63                 .fourcc = V4L2_PIX_FMT_RGB555,
  64                 .colorspace = V4L2_COLORSPACE_SRGB,
  65                 .depth = 15,
  66                 .flags = ZORAN_FORMAT_CAPTURE,
  67                 .vfespfr = ZR36057_VFESPFR_RGB555 | ZR36057_VFESPFR_ERR_DIF |
  68                            ZR36057_VFESPFR_LITTLE_ENDIAN,
  69         }, {
  70                 .name = "15-bit RGB BE",
  71                 .fourcc = V4L2_PIX_FMT_RGB555X,
  72                 .colorspace = V4L2_COLORSPACE_SRGB,
  73                 .depth = 15,
  74                 .flags = ZORAN_FORMAT_CAPTURE,
  75                 .vfespfr = ZR36057_VFESPFR_RGB555 | ZR36057_VFESPFR_ERR_DIF,
  76         }, {
  77                 .name = "16-bit RGB LE",
  78                 .fourcc = V4L2_PIX_FMT_RGB565,
  79                 .colorspace = V4L2_COLORSPACE_SRGB,
  80                 .depth = 16,
  81                 .flags = ZORAN_FORMAT_CAPTURE,
  82                 .vfespfr = ZR36057_VFESPFR_RGB565 | ZR36057_VFESPFR_ERR_DIF |
  83                            ZR36057_VFESPFR_LITTLE_ENDIAN,
  84         }, {
  85                 .name = "16-bit RGB BE",
  86                 .fourcc = V4L2_PIX_FMT_RGB565X,
  87                 .colorspace = V4L2_COLORSPACE_SRGB,
  88                 .depth = 16,
  89                 .flags = ZORAN_FORMAT_CAPTURE,
  90                 .vfespfr = ZR36057_VFESPFR_RGB565 | ZR36057_VFESPFR_ERR_DIF,
  91         }, {
  92                 .name = "24-bit RGB",
  93                 .fourcc = V4L2_PIX_FMT_BGR24,
  94                 .colorspace = V4L2_COLORSPACE_SRGB,
  95                 .depth = 24,
  96                 .flags = ZORAN_FORMAT_CAPTURE,
  97                 .vfespfr = ZR36057_VFESPFR_RGB888 | ZR36057_VFESPFR_PACK24,
  98         }, {
  99                 .name = "32-bit RGB LE",
 100                 .fourcc = V4L2_PIX_FMT_BGR32,
 101                 .colorspace = V4L2_COLORSPACE_SRGB,
 102                 .depth = 32,
 103                 .flags = ZORAN_FORMAT_CAPTURE,
 104                 .vfespfr = ZR36057_VFESPFR_RGB888 | ZR36057_VFESPFR_LITTLE_ENDIAN,
 105         }, {
 106                 .name = "32-bit RGB BE",
 107                 .fourcc = V4L2_PIX_FMT_RGB32,
 108                 .colorspace = V4L2_COLORSPACE_SRGB,
 109                 .depth = 32,
 110                 .flags = ZORAN_FORMAT_CAPTURE,
 111                 .vfespfr = ZR36057_VFESPFR_RGB888,
 112         }, {
 113                 .name = "4:2:2, packed, YUYV",
 114                 .fourcc = V4L2_PIX_FMT_YUYV,
 115                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 116                 .depth = 16,
 117                 .flags = ZORAN_FORMAT_CAPTURE,
 118                 .vfespfr = ZR36057_VFESPFR_YUV422,
 119         }, {
 120                 .name = "4:2:2, packed, UYVY",
 121                 .fourcc = V4L2_PIX_FMT_UYVY,
 122                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 123                 .depth = 16,
 124                 .flags = ZORAN_FORMAT_CAPTURE,
 125                 .vfespfr = ZR36057_VFESPFR_YUV422 | ZR36057_VFESPFR_LITTLE_ENDIAN,
 126         }, {
 127                 .name = "Hardware-encoded Motion-JPEG",
 128                 .fourcc = V4L2_PIX_FMT_MJPEG,
 129                 .colorspace = V4L2_COLORSPACE_SMPTE170M,
 130                 .depth = 0,
 131                 .flags = ZORAN_FORMAT_CAPTURE |
 132                          ZORAN_FORMAT_PLAYBACK |
 133                          ZORAN_FORMAT_COMPRESSED,
 134         }
 135 };
 136
 137 #define NUM_FORMATS ARRAY_SIZE(zoran_formats)
 138
 139         /*
 140          * small helper function for calculating buffersizes for v4l2
 141          * we calculate the nearest higher power-of-two, which
 142          * will be the recommended buffersize
 143          */
 144 static __u32 zoran_v4l2_calc_bufsize(struct zoran_jpg_settings *settings)
 145 {
 146         __u8 div = settings->ver_dcm * settings->hor_dcm * settings->tmp_dcm;
 147         __u32 num = (1024 * 512) / (div);
 148         __u32 result = 2;
 149
 150         num--;
 151         while (num) {
 152                 num >>= 1;
 153                 result <<= 1;
 154         }
 155
 156         if (result < 8192)
 157                 return 8192;
 158
 159         return result;
 160 }
 161
 162 /*
 163  *   V4L Buffer grabbing
 164  */
 165 static int zoran_v4l_set_format(struct zoran *zr, int width, int height,
 166                                 const struct zoran_format *format)
 167 {
 168         int bpp;
 169
 170         /* Check size and format of the grab wanted */
 171
 172         if (height < BUZ_MIN_HEIGHT || width < BUZ_MIN_WIDTH ||
 173             height > BUZ_MAX_HEIGHT || width > BUZ_MAX_WIDTH) {
 174                 pci_dbg(zr->pci_dev, "%s - wrong frame size (%dx%d)\n", __func__, width, height);
 175                 return -EINVAL;
 176         }
 177
 178         bpp = (format->depth + 7) / 8;
 179
 180         zr->buffer_size = height * width * bpp;
 181
 182         /* Check against available buffer size */
 183         if (height * width * bpp > zr->buffer_size) {
 184                 pci_dbg(zr->pci_dev, "%s - video buffer size (%d kB) is too small\n",
 185                         __func__, zr->buffer_size >> 10);
 186                 return -EINVAL;
 187         }
 188
 189         /* The video front end needs 4-byte alinged line sizes */
 190
 191         if ((bpp == 2 && (width & 1)) || (bpp == 3 && (width & 3))) {
 192                 pci_dbg(zr->pci_dev, "%s - wrong frame alignment\n", __func__);
 193                 return -EINVAL;
 194         }
 195
 196         zr->v4l_settings.width = width;
 197         zr->v4l_settings.height = height;
 198         zr->v4l_settings.format = format;
 199         zr->v4l_settings.bytesperline = bpp * zr->v4l_settings.width;
 200
 201         return 0;
 202 }
 203
 204 static int zoran_set_norm(struct zoran *zr, v4l2_std_id norm)
 205 {
 206
 207         if (!(norm & zr->card.norms)) {
 208                 pci_dbg(zr->pci_dev, "%s - unsupported norm %llx\n", __func__, norm);
 209                 return -EINVAL;
 210         }
 211
 212         if (norm & V4L2_STD_SECAM)
 213                 zr->timing = zr->card.tvn[ZR_NORM_SECAM];
 214         else if (norm & V4L2_STD_NTSC)
 215                 zr->timing = zr->card.tvn[ZR_NORM_NTSC];
 216         else
 217                 zr->timing = zr->card.tvn[ZR_NORM_PAL];
 218
 219         decoder_call(zr, video, s_std, norm);
 220         encoder_call(zr, video, s_std_output, norm);
 221
 222         /* Make sure the changes come into effect */
 223         zr->norm = norm;
 224
 225         return 0;
 226 }
 227
 228 static int zoran_set_input(struct zoran *zr, int input)
 229 {
 230         if (input == zr->input)
 231                 return 0;
 232
 233         if (input < 0 || input >= zr->card.inputs) {
 234                 pci_dbg(zr->pci_dev, "%s - unsupported input %d\n", __func__, input);
 235                 return -EINVAL;
 236         }
 237
 238         zr->input = input;
 239
 240         decoder_call(zr, video, s_routing, zr->card.input[input].muxsel, 0, 0);
 241
 242         return 0;
 243 }
 244
 245 /*
 246  *   ioctl routine
 247  */
 248
 249 static int zoran_querycap(struct file *file, void *__fh, struct v4l2_capability *cap)
 250 {
 251         struct zoran *zr = video_drvdata(file);
 252
 253         strscpy(cap->card, ZR_DEVNAME(zr), sizeof(cap->card));
 254         strscpy(cap->driver, "zoran", sizeof(cap->driver));
 255         snprintf(cap->bus_info, sizeof(cap->bus_info), "PCI:%s", pci_name(zr->pci_dev));
 256         return 0;
 257 }
 258
 259 static int zoran_enum_fmt(struct zoran *zr, struct v4l2_fmtdesc *fmt, int flag)
 260 {
 261         unsigned int num, i;
 262
 263         if (fmt->index >= ARRAY_SIZE(zoran_formats))
 264                 return -EINVAL;
 265         if (fmt->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 266                 return -EINVAL;
 267
 268         for (num = i = 0; i < NUM_FORMATS; i++) {
 269                 if (zoran_formats[i].flags & flag && num++ == fmt->index) {
 270                         strscpy(fmt->description, zoran_formats[i].name,
 271                                 sizeof(fmt->description));
 272                         /* fmt struct pre-zeroed, so adding '\0' not needed */
 273                         fmt->pixelformat = zoran_formats[i].fourcc;
 274                         if (zoran_formats[i].flags & ZORAN_FORMAT_COMPRESSED)
 275                                 fmt->flags |= V4L2_FMT_FLAG_COMPRESSED;
 276                         return 0;
 277                 }
 278         }
 279         return -EINVAL;
 280 }
 281
 282 static int zoran_enum_fmt_vid_cap(struct file *file, void *__fh,
 283                                   struct v4l2_fmtdesc *f)
 284 {
 285         struct zoran *zr = video_drvdata(file);
 286
 287         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_CAPTURE);
 288 }
 289
 290 #if 0
 291 /* TODO: output does not work yet */
 292 static int zoran_enum_fmt_vid_out(struct file *file, void *__fh,
 293                                   struct v4l2_fmtdesc *f)
 294 {
 295         struct zoran *zr = video_drvdata(file);
 296
 297         return zoran_enum_fmt(zr, f, ZORAN_FORMAT_PLAYBACK);
 298 }
 299 #endif
 300
 301 static int zoran_g_fmt_vid_out(struct file *file, void *__fh,
 302                                struct v4l2_format *fmt)
 303 {
 304         struct zoran *zr = video_drvdata(file);
 305
 306         fmt->fmt.pix.width = zr->jpg_settings.img_width / zr->jpg_settings.hor_dcm;
 307         fmt->fmt.pix.height = zr->jpg_settings.img_height * 2 /
 308                 (zr->jpg_settings.ver_dcm * zr->jpg_settings.tmp_dcm);
 309         fmt->fmt.pix.sizeimage = zr->buffer_size;
 310         fmt->fmt.pix.pixelformat = V4L2_PIX_FMT_MJPEG;
 311         if (zr->jpg_settings.tmp_dcm == 1)
 312                 fmt->fmt.pix.field = (zr->jpg_settings.odd_even ?
 313                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
 314         else
 315                 fmt->fmt.pix.field = (zr->jpg_settings.odd_even ?
 316                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
 317         fmt->fmt.pix.bytesperline = 0;
 318         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
 319
 320         return 0;
 321 }
 322
 323 static int zoran_g_fmt_vid_cap(struct file *file, void *__fh,
 324                                struct v4l2_format *fmt)
 325 {
 326         struct zoran *zr = video_drvdata(file);
 327
 328         if (zr->map_mode != ZORAN_MAP_MODE_RAW)
 329                 return zoran_g_fmt_vid_out(file, __fh, fmt);
 330         fmt->fmt.pix.width = zr->v4l_settings.width;
 331         fmt->fmt.pix.height = zr->v4l_settings.height;
 332         fmt->fmt.pix.sizeimage = zr->buffer_size;
 333         fmt->fmt.pix.pixelformat = zr->v4l_settings.format->fourcc;
 334         fmt->fmt.pix.colorspace = zr->v4l_settings.format->colorspace;
 335         fmt->fmt.pix.bytesperline = zr->v4l_settings.bytesperline;
 336         if (BUZ_MAX_HEIGHT < (zr->v4l_settings.height * 2))
 337                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
 338         else
 339                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
 340         return 0;
 341 }
 342
 343 static int zoran_try_fmt_vid_out(struct file *file, void *__fh,
 344                                  struct v4l2_format *fmt)
 345 {
 346         struct zoran *zr = video_drvdata(file);
 347         struct zoran_jpg_settings settings;
 348         int res = 0;
 349
 350         if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
 351                 return -EINVAL;
 352
 353         settings = zr->jpg_settings;
 354
 355         /* we actually need to set 'real' parameters now */
 356         if ((fmt->fmt.pix.height * 2) > BUZ_MAX_HEIGHT)
 357                 settings.tmp_dcm = 1;
 358         else
 359                 settings.tmp_dcm = 2;
 360         settings.decimation = 0;
 361         if (fmt->fmt.pix.height <= zr->jpg_settings.img_height / 2)
 362                 settings.ver_dcm = 2;
 363         else
 364                 settings.ver_dcm = 1;
 365         if (fmt->fmt.pix.width <= zr->jpg_settings.img_width / 4)
 366                 settings.hor_dcm = 4;
 367         else if (fmt->fmt.pix.width <= zr->jpg_settings.img_width / 2)
 368                 settings.hor_dcm = 2;
 369         else
 370                 settings.hor_dcm = 1;
 371         if (settings.tmp_dcm == 1)
 372                 settings.field_per_buff = 2;
 373         else
 374                 settings.field_per_buff = 1;
 375
 376         if (settings.hor_dcm > 1) {
 377                 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
 378                 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
 379         } else {
 380                 settings.img_x = 0;
 381                 settings.img_width = BUZ_MAX_WIDTH;
 382         }
 383
 384         /* check */
 385         res = zoran_check_jpg_settings(zr, &settings, 1);
 386         if (res)
 387                 return res;
 388
 389         /* tell the user what we actually did */
 390         fmt->fmt.pix.width = settings.img_width / settings.hor_dcm;
 391         fmt->fmt.pix.height = settings.img_height * 2 /
 392                 (settings.tmp_dcm * settings.ver_dcm);
 393         if (settings.tmp_dcm == 1)
 394                 fmt->fmt.pix.field = (zr->jpg_settings.odd_even ?
 395                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
 396         else
 397                 fmt->fmt.pix.field = (zr->jpg_settings.odd_even ?
 398                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
 399
 400         fmt->fmt.pix.sizeimage = zoran_v4l2_calc_bufsize(&settings);
 401         fmt->fmt.pix.bytesperline = 0;
 402         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
 403         return res;
 404 }
 405
 406 static int zoran_try_fmt_vid_cap(struct file *file, void *__fh,
 407                                  struct v4l2_format *fmt)
 408 {
 409         struct zoran *zr = video_drvdata(file);
 410         int bpp;
 411         int i;
 412
 413         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
 414                 return zoran_try_fmt_vid_out(file, __fh, fmt);
 415
 416         for (i = 0; i < NUM_FORMATS; i++)
 417                 if (zoran_formats[i].fourcc == fmt->fmt.pix.pixelformat)
 418                         break;
 419
 420         if (i == NUM_FORMATS) {
 421                 /* TODO do not return here to fix the TRY_FMT cannot handle an invalid pixelformat*/
 422                 return -EINVAL;
 423         }
 424
 425         fmt->fmt.pix.pixelformat = zoran_formats[i].fourcc;
 426         fmt->fmt.pix.colorspace = zoran_formats[i].colorspace;
 427         if (BUZ_MAX_HEIGHT < (fmt->fmt.pix.height * 2))
 428                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
 429         else
 430                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
 431
 432         bpp = DIV_ROUND_UP(zoran_formats[i].depth, 8);
 433         v4l_bound_align_image(&fmt->fmt.pix.width, BUZ_MIN_WIDTH, BUZ_MAX_WIDTH, bpp == 2 ? 1 : 2,
 434                 &fmt->fmt.pix.height, BUZ_MIN_HEIGHT, BUZ_MAX_HEIGHT, 0, 0);
 435         fmt->fmt.pix.bytesperline = fmt->fmt.pix.width * bpp;
 436         fmt->fmt.pix.sizeimage = fmt->fmt.pix.bytesperline * fmt->fmt.pix.height;
 437         return 0;
 438 }
 439
 440 static int zoran_s_fmt_vid_out(struct file *file, void *__fh,
 441                                struct v4l2_format *fmt)
 442 {
 443         struct zoran *zr = video_drvdata(file);
 444         __le32 printformat = __cpu_to_le32(fmt->fmt.pix.pixelformat);
 445         struct zoran_jpg_settings settings;
 446         int res = 0;
 447
 448         pci_dbg(zr->pci_dev, "size=%dx%d, fmt=0x%x (%4.4s)\n",
 449                 fmt->fmt.pix.width, fmt->fmt.pix.height,
 450                         fmt->fmt.pix.pixelformat,
 451                         (char *)&printformat);
 452         if (fmt->fmt.pix.pixelformat != V4L2_PIX_FMT_MJPEG)
 453                 return -EINVAL;
 454
 455         if (!fmt->fmt.pix.height || !fmt->fmt.pix.width)
 456                 return -EINVAL;
 457
 458         settings = zr->jpg_settings;
 459
 460         /* we actually need to set 'real' parameters now */
 461         if (fmt->fmt.pix.height * 2 > BUZ_MAX_HEIGHT)
 462                 settings.tmp_dcm = 1;
 463         else
 464                 settings.tmp_dcm = 2;
 465         settings.decimation = 0;
 466         if (fmt->fmt.pix.height <= zr->jpg_settings.img_height / 2)
 467                 settings.ver_dcm = 2;
 468         else
 469                 settings.ver_dcm = 1;
 470         if (fmt->fmt.pix.width <= zr->jpg_settings.img_width / 4)
 471                 settings.hor_dcm = 4;
 472         else if (fmt->fmt.pix.width <= zr->jpg_settings.img_width / 2)
 473                 settings.hor_dcm = 2;
 474         else
 475                 settings.hor_dcm = 1;
 476         if (settings.tmp_dcm == 1)
 477                 settings.field_per_buff = 2;
 478         else
 479                 settings.field_per_buff = 1;
 480
 481         if (settings.hor_dcm > 1) {
 482                 settings.img_x = (BUZ_MAX_WIDTH == 720) ? 8 : 0;
 483                 settings.img_width = (BUZ_MAX_WIDTH == 720) ? 704 : BUZ_MAX_WIDTH;
 484         } else {
 485                 settings.img_x = 0;
 486                 settings.img_width = BUZ_MAX_WIDTH;
 487         }
 488
 489         /* check */
 490         res = zoran_check_jpg_settings(zr, &settings, 0);
 491         if (res)
 492                 return res;
 493
 494         /* it's ok, so set them */
 495         zr->jpg_settings = settings;
 496
 497         if (fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT)
 498                 zr->map_mode = ZORAN_MAP_MODE_JPG_REC;
 499         else
 500                 zr->map_mode = ZORAN_MAP_MODE_JPG_PLAY;
 501
 502         zr->buffer_size = zoran_v4l2_calc_bufsize(&zr->jpg_settings);
 503
 504         /* tell the user what we actually did */
 505         fmt->fmt.pix.width = settings.img_width / settings.hor_dcm;
 506         fmt->fmt.pix.height = settings.img_height * 2 /
 507                 (settings.tmp_dcm * settings.ver_dcm);
 508         if (settings.tmp_dcm == 1)
 509                 fmt->fmt.pix.field = (zr->jpg_settings.odd_even ?
 510                                 V4L2_FIELD_SEQ_TB : V4L2_FIELD_SEQ_BT);
 511         else
 512                 fmt->fmt.pix.field = (zr->jpg_settings.odd_even ?
 513                                 V4L2_FIELD_TOP : V4L2_FIELD_BOTTOM);
 514         fmt->fmt.pix.bytesperline = 0;
 515         fmt->fmt.pix.sizeimage = zr->buffer_size;
 516         fmt->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
 517         return res;
 518 }
 519
 520 static int zoran_s_fmt_vid_cap(struct file *file, void *__fh,
 521                                struct v4l2_format *fmt)
 522 {
 523         struct zoran *zr = video_drvdata(file);
 524         struct zoran_fh *fh = __fh;
 525         int i;
 526         int res = 0;
 527
 528         if (fmt->fmt.pix.pixelformat == V4L2_PIX_FMT_MJPEG)
 529                 return zoran_s_fmt_vid_out(file, fh, fmt);
 530
 531         for (i = 0; i < NUM_FORMATS; i++)
 532                 if (fmt->fmt.pix.pixelformat == zoran_formats[i].fourcc)
 533                         break;
 534         if (i == NUM_FORMATS) {
 535                 pci_dbg(zr->pci_dev, "VIDIOC_S_FMT - unknown/unsupported format 0x%x\n",
 536                         fmt->fmt.pix.pixelformat);
 537                 /* TODO do not return here to fix the TRY_FMT cannot handle an invalid pixelformat*/
 538                 return -EINVAL;
 539         }
 540
 541         fmt->fmt.pix.pixelformat = zoran_formats[i].fourcc;
 542         if (fmt->fmt.pix.height > BUZ_MAX_HEIGHT)
 543                 fmt->fmt.pix.height = BUZ_MAX_HEIGHT;
 544         if (fmt->fmt.pix.width > BUZ_MAX_WIDTH)
 545                 fmt->fmt.pix.width = BUZ_MAX_WIDTH;
 546         if (fmt->fmt.pix.height < BUZ_MIN_HEIGHT)
 547                 fmt->fmt.pix.height = BUZ_MIN_HEIGHT;
 548         if (fmt->fmt.pix.width < BUZ_MIN_WIDTH)
 549                 fmt->fmt.pix.width = BUZ_MIN_WIDTH;
 550
 551         zr->map_mode = ZORAN_MAP_MODE_RAW;
 552
 553         res = zoran_v4l_set_format(zr, fmt->fmt.pix.width, fmt->fmt.pix.height,
 554                                    &zoran_formats[i]);
 555         if (res)
 556                 return res;
 557
 558         /* tell the user the results/missing stuff */
 559         fmt->fmt.pix.bytesperline = zr->v4l_settings.bytesperline;
 560         fmt->fmt.pix.sizeimage = zr->buffer_size;
 561         fmt->fmt.pix.colorspace = zr->v4l_settings.format->colorspace;
 562         if (BUZ_MAX_HEIGHT < (zr->v4l_settings.height * 2))
 563                 fmt->fmt.pix.field = V4L2_FIELD_INTERLACED;
 564         else
 565                 fmt->fmt.pix.field = V4L2_FIELD_TOP;
 566         return res;
 567 }
 568
 569 static int zoran_g_std(struct file *file, void *__fh, v4l2_std_id *std)
 570 {
 571         struct zoran *zr = video_drvdata(file);
 572
 573         *std = zr->norm;
 574         return 0;
 575 }
 576
 577 static int zoran_s_std(struct file *file, void *__fh, v4l2_std_id std)
 578 {
 579         struct zoran *zr = video_drvdata(file);
 580         int res = 0;
 581
 582         if (zr->norm == std)
 583                 return 0;
 584
 585         if (zr->running != ZORAN_MAP_MODE_NONE)
 586                 return -EBUSY;
 587
 588         res = zoran_set_norm(zr, std);
 589         return res;
 590 }
 591
 592 static int zoran_enum_input(struct file *file, void *__fh,
 593                             struct v4l2_input *inp)
 594 {
 595         struct zoran *zr = video_drvdata(file);
 596
 597         if (inp->index >= zr->card.inputs)
 598                 return -EINVAL;
 599
 600         strscpy(inp->name, zr->card.input[inp->index].name, sizeof(inp->name));
 601         inp->type = V4L2_INPUT_TYPE_CAMERA;
 602         inp->std = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM;
 603
 604         /* Get status of video decoder */
 605         decoder_call(zr, video, g_input_status, &inp->status);
 606         return 0;
 607 }
 608
 609 static int zoran_g_input(struct file *file, void *__fh, unsigned int *input)
 610 {
 611         struct zoran *zr = video_drvdata(file);
 612
 613         *input = zr->input;
 614
 615         return 0;
 616 }
 617
 618 static int zoran_s_input(struct file *file, void *__fh, unsigned int input)
 619 {
 620         struct zoran *zr = video_drvdata(file);
 621         int res;
 622
 623         if (zr->running != ZORAN_MAP_MODE_NONE)
 624                 return -EBUSY;
 625
 626         res = zoran_set_input(zr, input);
 627         return res;
 628 }
 629
 630 #if 0
 631 /* TODO: output does not work yet */
 632 static int zoran_enum_output(struct file *file, void *__fh,
 633                              struct v4l2_output *outp)
 634 {
 635         if (outp->index != 0)
 636                 return -EINVAL;
 637
 638         outp->index = 0;
 639         outp->type = V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY;
 640         outp->std = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM;
 641         outp->capabilities = V4L2_OUT_CAP_STD;
 642         strscpy(outp->name, "Autodetect", sizeof(outp->name));
 643
 644         return 0;
 645 }
 646 static int zoran_g_output(struct file *file, void *__fh, unsigned int *output)
 647 {
 648         *output = 0;
 649
 650         return 0;
 651 }
 652
 653 static int zoran_s_output(struct file *file, void *__fh, unsigned int output)
 654 {
 655         if (output != 0)
 656                 return -EINVAL;
 657
 658         return 0;
 659 }
 660 #endif
 661
 662 /* cropping (sub-frame capture) */
 663 static int zoran_g_selection(struct file *file, void *__fh, struct v4l2_selection *sel)
 664 {
 665         struct zoran *zr = video_drvdata(file);
 666
 667         if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
 668             sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) {
 669                 pci_dbg(zr->pci_dev, "%s invalid selection type combination\n", __func__);
 670                 return -EINVAL;
 671         }
 672
 673         switch (sel->target) {
 674         case V4L2_SEL_TGT_CROP:
 675                 sel->r.top = zr->jpg_settings.img_y;
 676                 sel->r.left = zr->jpg_settings.img_x;
 677                 sel->r.width = zr->jpg_settings.img_width;
 678                 sel->r.height = zr->jpg_settings.img_height;
 679                 break;
 680         case V4L2_SEL_TGT_CROP_DEFAULT:
 681                 sel->r.top = 0;
 682                 sel->r.left = 0;
 683                 sel->r.width = BUZ_MIN_WIDTH;
 684                 sel->r.height = BUZ_MIN_HEIGHT;
 685                 break;
 686         case V4L2_SEL_TGT_CROP_BOUNDS:
 687                 sel->r.top = 0;
 688                 sel->r.left = 0;
 689                 sel->r.width = BUZ_MAX_WIDTH;
 690                 sel->r.height = BUZ_MAX_HEIGHT;
 691                 break;
 692         default:
 693                 return -EINVAL;
 694         }
 695         return 0;
 696 }
 697
 698 static int zoran_s_selection(struct file *file, void *__fh, struct v4l2_selection *sel)
 699 {
 700         struct zoran *zr = video_drvdata(file);
 701         struct zoran_jpg_settings settings;
 702         int res;
 703
 704         if (sel->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
 705             sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 706                 return -EINVAL;
 707
 708         if (!sel->r.width || !sel->r.height)
 709                 return -EINVAL;
 710
 711         if (sel->target != V4L2_SEL_TGT_CROP)
 712                 return -EINVAL;
 713
 714         if (zr->map_mode == ZORAN_MAP_MODE_RAW) {
 715                 pci_dbg(zr->pci_dev, "VIDIOC_S_SELECTION - subcapture only supported for compressed capture\n");
 716                 return -EINVAL;
 717         }
 718
 719         settings = zr->jpg_settings;
 720
 721         /* move into a form that we understand */
 722         settings.img_x = sel->r.left;
 723         settings.img_y = sel->r.top;
 724         settings.img_width = sel->r.width;
 725         settings.img_height = sel->r.height;
 726
 727         /* check validity */
 728         res = zoran_check_jpg_settings(zr, &settings, 0);
 729         if (res)
 730                 return res;
 731
 732         /* accept */
 733         zr->jpg_settings = settings;
 734         return res;
 735 }
 736
 737 /*
 738  * Output is disabled temporarily
 739  * Zoran is picky about jpeg data it accepts. At least it seems to unsupport COM and APPn.
 740  * So until a way to filter data will be done, disable output.
 741  */
 742 static const struct v4l2_ioctl_ops zoran_ioctl_ops = {
 743         .vidioc_querycap                    = zoran_querycap,
 744         .vidioc_s_selection                 = zoran_s_selection,
 745         .vidioc_g_selection                 = zoran_g_selection,
 746         .vidioc_enum_input                  = zoran_enum_input,
 747         .vidioc_g_input                     = zoran_g_input,
 748         .vidioc_s_input                     = zoran_s_input,
 749 /*      .vidioc_enum_output                 = zoran_enum_output,
 750         .vidioc_g_output                    = zoran_g_output,
 751         .vidioc_s_output                    = zoran_s_output,*/
 752         .vidioc_g_std                       = zoran_g_std,
 753         .vidioc_s_std                       = zoran_s_std,
 754         .vidioc_create_bufs                 = vb2_ioctl_create_bufs,
 755         .vidioc_reqbufs                     = vb2_ioctl_reqbufs,
 756         .vidioc_querybuf                    = vb2_ioctl_querybuf,
 757         .vidioc_qbuf                        = vb2_ioctl_qbuf,
 758         .vidioc_dqbuf                       = vb2_ioctl_dqbuf,
 759         .vidioc_expbuf                      = vb2_ioctl_expbuf,
 760         .vidioc_streamon                    = vb2_ioctl_streamon,
 761         .vidioc_streamoff                   = vb2_ioctl_streamoff,
 762         .vidioc_enum_fmt_vid_cap            = zoran_enum_fmt_vid_cap,
 763 /*      .vidioc_enum_fmt_vid_out            = zoran_enum_fmt_vid_out,*/
 764         .vidioc_g_fmt_vid_cap               = zoran_g_fmt_vid_cap,
 765 /*      .vidioc_g_fmt_vid_out               = zoran_g_fmt_vid_out,*/
 766         .vidioc_s_fmt_vid_cap               = zoran_s_fmt_vid_cap,
 767 /*      .vidioc_s_fmt_vid_out               = zoran_s_fmt_vid_out,*/
 768         .vidioc_try_fmt_vid_cap             = zoran_try_fmt_vid_cap,
 769 /*      .vidioc_try_fmt_vid_out             = zoran_try_fmt_vid_out,*/
 770         .vidioc_subscribe_event             = v4l2_ctrl_subscribe_event,
 771         .vidioc_unsubscribe_event           = v4l2_event_unsubscribe,
 772 };
 773
 774 static const struct v4l2_file_operations zoran_fops = {
 775         .owner = THIS_MODULE,
 776         .unlocked_ioctl = video_ioctl2,
 777         .open           = v4l2_fh_open,
 778         .release        = vb2_fop_release,
 779         .mmap           = vb2_fop_mmap,
 780         .poll           = vb2_fop_poll,
 781 };
 782
 783 const struct video_device zoran_template = {
 784         .name = ZORAN_NAME,
 785         .fops = &zoran_fops,
 786         .ioctl_ops = &zoran_ioctl_ops,
 787         .release = &zoran_vdev_release,
 788         .tvnorms = V4L2_STD_NTSC | V4L2_STD_PAL | V4L2_STD_SECAM,
 789 };
 790
 791 static int zr_vb2_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, unsigned int *nplanes,
 792                               unsigned int sizes[], struct device *alloc_devs[])
 793 {
 794         struct zoran *zr = vb2_get_drv_priv(vq);
 795         unsigned int size = zr->buffer_size;
 796
 797         pci_dbg(zr->pci_dev, "%s nbuf=%u nplanes=%u", __func__, *nbuffers, *nplanes);
 798
 799         zr->buf_in_reserve = 0;
 800
 801         if (*nbuffers < vq->min_buffers_needed)
 802                 *nbuffers = vq->min_buffers_needed;
 803
 804         if (*nplanes) {
 805                 if (sizes[0] < size)
 806                         return -EINVAL;
 807                 else
 808                         return 0;
 809         }
 810
 811         *nplanes = 1;
 812         sizes[0] = size;
 813
 814         return 0;
 815 }
 816
 817 static void zr_vb2_queue(struct vb2_buffer *vb)
 818 {
 819         struct zoran *zr = vb2_get_drv_priv(vb->vb2_queue);
 820         struct zr_buffer *buf = vb2_to_zr_buffer(vb);
 821         unsigned long flags;
 822
 823         spin_lock_irqsave(&zr->queued_bufs_lock, flags);
 824         list_add_tail(&buf->queue, &zr->queued_bufs);
 825         zr->buf_in_reserve++;
 826         spin_unlock_irqrestore(&zr->queued_bufs_lock, flags);
 827         if (zr->running == ZORAN_MAP_MODE_JPG_REC)
 828                 zoran_feed_stat_com(zr);
 829         zr->queued++;
 830 }
 831
 832 static int zr_vb2_prepare(struct vb2_buffer *vb)
 833 {
 834         struct zoran *zr = vb2_get_drv_priv(vb->vb2_queue);
 835
 836         if (vb2_plane_size(vb, 0) < zr->buffer_size)
 837                 return -EINVAL;
 838         zr->prepared++;
 839
 840         return 0;
 841 }
 842
 843 int zr_set_buf(struct zoran *zr)
 844 {
 845         struct zr_buffer *buf;
 846         struct vb2_v4l2_buffer *vbuf;
 847         dma_addr_t phys_addr;
 848         unsigned long flags;
 849         u32 reg;
 850
 851         if (zr->running == ZORAN_MAP_MODE_NONE)
 852                 return 0;
 853
 854         if (zr->inuse[0]) {
 855                 buf = zr->inuse[0];
 856                 buf->vbuf.vb2_buf.timestamp = ktime_get_ns();
 857                 buf->vbuf.sequence = zr->vbseq++;
 858                 vbuf = &buf->vbuf;
 859
 860                 buf->vbuf.field = V4L2_FIELD_INTERLACED;
 861                 if (BUZ_MAX_HEIGHT < (zr->v4l_settings.height * 2))
 862                         buf->vbuf.field = V4L2_FIELD_INTERLACED;
 863                 else
 864                         buf->vbuf.field = V4L2_FIELD_TOP;
 865                 vb2_set_plane_payload(&buf->vbuf.vb2_buf, 0, zr->buffer_size);
 866                 vb2_buffer_done(&buf->vbuf.vb2_buf, VB2_BUF_STATE_DONE);
 867                 zr->inuse[0] = NULL;
 868         }
 869
 870         spin_lock_irqsave(&zr->queued_bufs_lock, flags);
 871         if (list_empty(&zr->queued_bufs)) {
 872                 btand(~ZR36057_ICR_INT_PIN_EN, ZR36057_ICR);
 873                 vb2_queue_error(zr->video_dev->queue);
 874                 spin_unlock_irqrestore(&zr->queued_bufs_lock, flags);
 875                 return -EINVAL;
 876         }
 877         buf = list_first_entry_or_null(&zr->queued_bufs, struct zr_buffer, queue);
 878         if (!buf) {
 879                 btand(~ZR36057_ICR_INT_PIN_EN, ZR36057_ICR);
 880                 vb2_queue_error(zr->video_dev->queue);
 881                 spin_unlock_irqrestore(&zr->queued_bufs_lock, flags);
 882                 return -EINVAL;
 883         }
 884         list_del(&buf->queue);
 885         zr->buf_in_reserve--;
 886         spin_unlock_irqrestore(&zr->queued_bufs_lock, flags);
 887
 888         vbuf = &buf->vbuf;
 889         vbuf->vb2_buf.state = VB2_BUF_STATE_ACTIVE;
 890         phys_addr = vb2_dma_contig_plane_dma_addr(&vbuf->vb2_buf, 0);
 891
 892         if (!phys_addr)
 893                 return -EINVAL;
 894
 895         zr->inuse[0] = buf;
 896
 897         reg = phys_addr;
 898         btwrite(reg, ZR36057_VDTR);
 899         if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2)
 900                 reg += zr->v4l_settings.bytesperline;
 901         btwrite(reg, ZR36057_VDBR);
 902
 903         reg = 0;
 904         if (zr->v4l_settings.height > BUZ_MAX_HEIGHT / 2)
 905                 reg += zr->v4l_settings.bytesperline;
 906         reg = (reg << ZR36057_VSSFGR_DISP_STRIDE);
 907         reg |= ZR36057_VSSFGR_VID_OVF;
 908         reg |= ZR36057_VSSFGR_SNAP_SHOT;
 909         reg |= ZR36057_VSSFGR_FRAME_GRAB;
 910         btwrite(reg, ZR36057_VSSFGR);
 911
 912         btor(ZR36057_VDCR_VID_EN, ZR36057_VDCR);
 913         return 0;
 914 }
 915
 916 static int zr_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
 917 {
 918         struct zoran *zr = vq->drv_priv;
 919         int j;
 920
 921         for (j = 0; j < BUZ_NUM_STAT_COM; j++) {
 922                 zr->stat_com[j] = cpu_to_le32(1);
 923                 zr->inuse[j] = NULL;
 924         }
 925         zr->vbseq = 0;
 926
 927         if (zr->map_mode != ZORAN_MAP_MODE_RAW) {
 928                 pci_dbg(zr->pci_dev, "START JPG\n");
 929                 zr36057_restart(zr);
 930                 zoran_init_hardware(zr);
 931                 if (zr->map_mode == ZORAN_MAP_MODE_JPG_REC)
 932                         zr36057_enable_jpg(zr, BUZ_MODE_MOTION_DECOMPRESS);
 933                 else
 934                         zr36057_enable_jpg(zr, BUZ_MODE_MOTION_COMPRESS);
 935                 zoran_feed_stat_com(zr);
 936                 jpeg_start(zr);
 937                 zr->running = zr->map_mode;
 938                 btor(ZR36057_ICR_INT_PIN_EN, ZR36057_ICR);
 939                 return 0;
 940         }
 941
 942         pci_dbg(zr->pci_dev, "START RAW\n");
 943         zr36057_restart(zr);
 944         zoran_init_hardware(zr);
 945
 946         zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
 947         zr36057_set_memgrab(zr, 1);
 948         zr->running = zr->map_mode;
 949         btor(ZR36057_ICR_INT_PIN_EN, ZR36057_ICR);
 950         return 0;
 951 }
 952
 953 static void zr_vb2_stop_streaming(struct vb2_queue *vq)
 954 {
 955         struct zoran *zr = vq->drv_priv;
 956         struct zr_buffer *buf;
 957         unsigned long flags;
 958         int j;
 959
 960         btand(~ZR36057_ICR_INT_PIN_EN, ZR36057_ICR);
 961         if (zr->map_mode != ZORAN_MAP_MODE_RAW)
 962                 zr36057_enable_jpg(zr, BUZ_MODE_IDLE);
 963         zr36057_set_memgrab(zr, 0);
 964         zr->running = ZORAN_MAP_MODE_NONE;
 965
 966         zoran_set_pci_master(zr, 0);
 967
 968         if (!pass_through) {    /* Switch to color bar */
 969                 decoder_call(zr, video, s_stream, 0);
 970                 encoder_call(zr, video, s_routing, 2, 0, 0);
 971         }
 972
 973         for (j = 0; j < BUZ_NUM_STAT_COM; j++) {
 974                 zr->stat_com[j] = cpu_to_le32(1);
 975                 if (!zr->inuse[j])
 976                         continue;
 977                 buf = zr->inuse[j];
 978                 pci_dbg(zr->pci_dev, "%s clean buf %d\n", __func__, j);
 979                 vb2_buffer_done(&buf->vbuf.vb2_buf, VB2_BUF_STATE_ERROR);
 980                 zr->inuse[j] = NULL;
 981         }
 982
 983         spin_lock_irqsave(&zr->queued_bufs_lock, flags);
 984         while (!list_empty(&zr->queued_bufs)) {
 985                 buf = list_entry(zr->queued_bufs.next, struct zr_buffer, queue);
 986                 list_del(&buf->queue);
 987                 vb2_buffer_done(&buf->vbuf.vb2_buf, VB2_BUF_STATE_ERROR);
 988                 zr->buf_in_reserve--;
 989         }
 990         spin_unlock_irqrestore(&zr->queued_bufs_lock, flags);
 991         if (zr->buf_in_reserve)
 992                 pci_dbg(zr->pci_dev, "Buffer remaining %d\n", zr->buf_in_reserve);
 993         zr->map_mode = ZORAN_MAP_MODE_RAW;
 994 }
 995
 996 static const struct vb2_ops zr_video_qops = {
 997         .queue_setup            = zr_vb2_queue_setup,
 998         .buf_queue              = zr_vb2_queue,
 999         .buf_prepare            = zr_vb2_prepare,
1000         .start_streaming        = zr_vb2_start_streaming,
1001         .stop_streaming         = zr_vb2_stop_streaming,
1002         .wait_prepare           = vb2_ops_wait_prepare,
1003         .wait_finish            = vb2_ops_wait_finish,
1004 };
1005
1006 int zoran_queue_init(struct zoran *zr, struct vb2_queue *vq, int dir)
1007 {
1008         int err;
1009
1010         spin_lock_init(&zr->queued_bufs_lock);
1011         INIT_LIST_HEAD(&zr->queued_bufs);
1012
1013         vq->dev = &zr->pci_dev->dev;
1014         vq->type = dir;
1015
1016         vq->io_modes = VB2_DMABUF | VB2_MMAP | VB2_READ | VB2_WRITE;
1017         vq->drv_priv = zr;
1018         vq->buf_struct_size = sizeof(struct zr_buffer);
1019         vq->ops = &zr_video_qops;
1020         vq->mem_ops = &vb2_dma_contig_memops;
1021         vq->gfp_flags = GFP_DMA32;
1022         vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
1023         vq->min_buffers_needed = 9;
1024         vq->lock = &zr->lock;
1025         err = vb2_queue_init(vq);
1026         if (err)
1027                 return err;
1028         zr->video_dev->queue = vq;
1029         return 0;
1030 }
1031
1032 void zoran_queue_exit(struct zoran *zr)
1033 {
1034         vb2_queue_release(zr->video_dev->queue);
1035 }