drivers/media/pci/saa7134/saa7134-video.c

   1 /*
   2  *
   3  * device driver for philips saa7134 based TV cards
   4  * video4linux video interface
   5  *
   6  * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  */
  22
  23 #include "saa7134.h"
  24 #include "saa7134-reg.h"
  25
  26 #include <linux/init.h>
  27 #include <linux/list.h>
  28 #include <linux/module.h>
  29 #include <linux/kernel.h>
  30 #include <linux/slab.h>
  31 #include <linux/sort.h>
  32
  33 #include <media/v4l2-common.h>
  34 #include <media/v4l2-event.h>
  35 #include <media/saa6588.h>
  36
  37 /* ------------------------------------------------------------------ */
  38
  39 unsigned int video_debug;
  40 static unsigned int gbuffers      = 8;
  41 static unsigned int noninterlaced; /* 0 */
  42 static unsigned int gbufsize      = 720*576*4;
  43 static unsigned int gbufsize_max  = 720*576*4;
  44 static char secam[] = "--";
  45 module_param(video_debug, int, 0644);
  46 MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
  47 module_param(gbuffers, int, 0444);
  48 MODULE_PARM_DESC(gbuffers,"number of capture buffers, range 2-32");
  49 module_param(noninterlaced, int, 0644);
  50 MODULE_PARM_DESC(noninterlaced,"capture non interlaced video");
  51 module_param_string(secam, secam, sizeof(secam), 0644);
  52 MODULE_PARM_DESC(secam, "force SECAM variant, either DK,L or Lc");
  53
  54
  55 #define video_dbg(fmt, arg...) do { \
  56         if (video_debug & 0x04) \
  57                 printk(KERN_DEBUG pr_fmt("video: " fmt), ## arg); \
  58         } while (0)
  59
  60 /* ------------------------------------------------------------------ */
  61 /* Defines for Video Output Port Register at address 0x191            */
  62
  63 /* Bit 0: VIP code T bit polarity */
  64
  65 #define VP_T_CODE_P_NON_INVERTED        0x00
  66 #define VP_T_CODE_P_INVERTED            0x01
  67
  68 /* ------------------------------------------------------------------ */
  69 /* Defines for Video Output Port Register at address 0x195            */
  70
  71 /* Bit 2: Video output clock delay control */
  72
  73 #define VP_CLK_CTRL2_NOT_DELAYED        0x00
  74 #define VP_CLK_CTRL2_DELAYED            0x04
  75
  76 /* Bit 1: Video output clock invert control */
  77
  78 #define VP_CLK_CTRL1_NON_INVERTED       0x00
  79 #define VP_CLK_CTRL1_INVERTED           0x02
  80
  81 /* ------------------------------------------------------------------ */
  82 /* Defines for Video Output Port Register at address 0x196            */
  83
  84 /* Bits 2 to 0: VSYNC pin video vertical sync type */
  85
  86 #define VP_VS_TYPE_MASK                 0x07
  87
  88 #define VP_VS_TYPE_OFF                  0x00
  89 #define VP_VS_TYPE_V123                 0x01
  90 #define VP_VS_TYPE_V_ITU                0x02
  91 #define VP_VS_TYPE_VGATE_L              0x03
  92 #define VP_VS_TYPE_RESERVED1            0x04
  93 #define VP_VS_TYPE_RESERVED2            0x05
  94 #define VP_VS_TYPE_F_ITU                0x06
  95 #define VP_VS_TYPE_SC_FID               0x07
  96
  97 /* ------------------------------------------------------------------ */
  98 /* data structs for video                                             */
  99
 100 static int video_out[][9] = {
 101         [CCIR656] = { 0x00, 0xb1, 0x00, 0xa1, 0x00, 0x04, 0x06, 0x00, 0x00 },
 102 };
 103
 104 static struct saa7134_format formats[] = {
 105         {
 106                 .name     = "8 bpp gray",
 107                 .fourcc   = V4L2_PIX_FMT_GREY,
 108                 .depth    = 8,
 109                 .pm       = 0x06,
 110         },{
 111                 .name     = "15 bpp RGB, le",
 112                 .fourcc   = V4L2_PIX_FMT_RGB555,
 113                 .depth    = 16,
 114                 .pm       = 0x13 | 0x80,
 115         },{
 116                 .name     = "15 bpp RGB, be",
 117                 .fourcc   = V4L2_PIX_FMT_RGB555X,
 118                 .depth    = 16,
 119                 .pm       = 0x13 | 0x80,
 120                 .bswap    = 1,
 121         },{
 122                 .name     = "16 bpp RGB, le",
 123                 .fourcc   = V4L2_PIX_FMT_RGB565,
 124                 .depth    = 16,
 125                 .pm       = 0x10 | 0x80,
 126         },{
 127                 .name     = "16 bpp RGB, be",
 128                 .fourcc   = V4L2_PIX_FMT_RGB565X,
 129                 .depth    = 16,
 130                 .pm       = 0x10 | 0x80,
 131                 .bswap    = 1,
 132         },{
 133                 .name     = "24 bpp RGB, le",
 134                 .fourcc   = V4L2_PIX_FMT_BGR24,
 135                 .depth    = 24,
 136                 .pm       = 0x11,
 137         },{
 138                 .name     = "24 bpp RGB, be",
 139                 .fourcc   = V4L2_PIX_FMT_RGB24,
 140                 .depth    = 24,
 141                 .pm       = 0x11,
 142                 .bswap    = 1,
 143         },{
 144                 .name     = "32 bpp RGB, le",
 145                 .fourcc   = V4L2_PIX_FMT_BGR32,
 146                 .depth    = 32,
 147                 .pm       = 0x12,
 148         },{
 149                 .name     = "32 bpp RGB, be",
 150                 .fourcc   = V4L2_PIX_FMT_RGB32,
 151                 .depth    = 32,
 152                 .pm       = 0x12,
 153                 .bswap    = 1,
 154                 .wswap    = 1,
 155         },{
 156                 .name     = "4:2:2 packed, YUYV",
 157                 .fourcc   = V4L2_PIX_FMT_YUYV,
 158                 .depth    = 16,
 159                 .pm       = 0x00,
 160                 .bswap    = 1,
 161                 .yuv      = 1,
 162         },{
 163                 .name     = "4:2:2 packed, UYVY",
 164                 .fourcc   = V4L2_PIX_FMT_UYVY,
 165                 .depth    = 16,
 166                 .pm       = 0x00,
 167                 .yuv      = 1,
 168         },{
 169                 .name     = "4:2:2 planar, Y-Cb-Cr",
 170                 .fourcc   = V4L2_PIX_FMT_YUV422P,
 171                 .depth    = 16,
 172                 .pm       = 0x09,
 173                 .yuv      = 1,
 174                 .planar   = 1,
 175                 .hshift   = 1,
 176                 .vshift   = 0,
 177         },{
 178                 .name     = "4:2:0 planar, Y-Cb-Cr",
 179                 .fourcc   = V4L2_PIX_FMT_YUV420,
 180                 .depth    = 12,
 181                 .pm       = 0x0a,
 182                 .yuv      = 1,
 183                 .planar   = 1,
 184                 .hshift   = 1,
 185                 .vshift   = 1,
 186         },{
 187                 .name     = "4:2:0 planar, Y-Cb-Cr",
 188                 .fourcc   = V4L2_PIX_FMT_YVU420,
 189                 .depth    = 12,
 190                 .pm       = 0x0a,
 191                 .yuv      = 1,
 192                 .planar   = 1,
 193                 .uvswap   = 1,
 194                 .hshift   = 1,
 195                 .vshift   = 1,
 196         }
 197 };
 198 #define FORMATS ARRAY_SIZE(formats)
 199
 200 #define NORM_625_50                     \
 201                 .h_start       = 0,     \
 202                 .h_stop        = 719,   \
 203                 .video_v_start = 24,    \
 204                 .video_v_stop  = 311,   \
 205                 .vbi_v_start_0 = 7,     \
 206                 .vbi_v_stop_0  = 23,    \
 207                 .vbi_v_start_1 = 319,   \
 208                 .src_timing    = 4
 209
 210 #define NORM_525_60                     \
 211                 .h_start       = 0,     \
 212                 .h_stop        = 719,   \
 213                 .video_v_start = 23,    \
 214                 .video_v_stop  = 262,   \
 215                 .vbi_v_start_0 = 10,    \
 216                 .vbi_v_stop_0  = 21,    \
 217                 .vbi_v_start_1 = 273,   \
 218                 .src_timing    = 7
 219
 220 static struct saa7134_tvnorm tvnorms[] = {
 221         {
 222                 .name          = "PAL", /* autodetect */
 223                 .id            = V4L2_STD_PAL,
 224                 NORM_625_50,
 225
 226                 .sync_control  = 0x18,
 227                 .luma_control  = 0x40,
 228                 .chroma_ctrl1  = 0x81,
 229                 .chroma_gain   = 0x2a,
 230                 .chroma_ctrl2  = 0x06,
 231                 .vgate_misc    = 0x1c,
 232
 233         },{
 234                 .name          = "PAL-BG",
 235                 .id            = V4L2_STD_PAL_BG,
 236                 NORM_625_50,
 237
 238                 .sync_control  = 0x18,
 239                 .luma_control  = 0x40,
 240                 .chroma_ctrl1  = 0x81,
 241                 .chroma_gain   = 0x2a,
 242                 .chroma_ctrl2  = 0x06,
 243                 .vgate_misc    = 0x1c,
 244
 245         },{
 246                 .name          = "PAL-I",
 247                 .id            = V4L2_STD_PAL_I,
 248                 NORM_625_50,
 249
 250                 .sync_control  = 0x18,
 251                 .luma_control  = 0x40,
 252                 .chroma_ctrl1  = 0x81,
 253                 .chroma_gain   = 0x2a,
 254                 .chroma_ctrl2  = 0x06,
 255                 .vgate_misc    = 0x1c,
 256
 257         },{
 258                 .name          = "PAL-DK",
 259                 .id            = V4L2_STD_PAL_DK,
 260                 NORM_625_50,
 261
 262                 .sync_control  = 0x18,
 263                 .luma_control  = 0x40,
 264                 .chroma_ctrl1  = 0x81,
 265                 .chroma_gain   = 0x2a,
 266                 .chroma_ctrl2  = 0x06,
 267                 .vgate_misc    = 0x1c,
 268
 269         },{
 270                 .name          = "NTSC",
 271                 .id            = V4L2_STD_NTSC,
 272                 NORM_525_60,
 273
 274                 .sync_control  = 0x59,
 275                 .luma_control  = 0x40,
 276                 .chroma_ctrl1  = 0x89,
 277                 .chroma_gain   = 0x2a,
 278                 .chroma_ctrl2  = 0x0e,
 279                 .vgate_misc    = 0x18,
 280
 281         },{
 282                 .name          = "SECAM",
 283                 .id            = V4L2_STD_SECAM,
 284                 NORM_625_50,
 285
 286                 .sync_control  = 0x18,
 287                 .luma_control  = 0x1b,
 288                 .chroma_ctrl1  = 0xd1,
 289                 .chroma_gain   = 0x80,
 290                 .chroma_ctrl2  = 0x00,
 291                 .vgate_misc    = 0x1c,
 292
 293         },{
 294                 .name          = "SECAM-DK",
 295                 .id            = V4L2_STD_SECAM_DK,
 296                 NORM_625_50,
 297
 298                 .sync_control  = 0x18,
 299                 .luma_control  = 0x1b,
 300                 .chroma_ctrl1  = 0xd1,
 301                 .chroma_gain   = 0x80,
 302                 .chroma_ctrl2  = 0x00,
 303                 .vgate_misc    = 0x1c,
 304
 305         },{
 306                 .name          = "SECAM-L",
 307                 .id            = V4L2_STD_SECAM_L,
 308                 NORM_625_50,
 309
 310                 .sync_control  = 0x18,
 311                 .luma_control  = 0x1b,
 312                 .chroma_ctrl1  = 0xd1,
 313                 .chroma_gain   = 0x80,
 314                 .chroma_ctrl2  = 0x00,
 315                 .vgate_misc    = 0x1c,
 316
 317         },{
 318                 .name          = "SECAM-Lc",
 319                 .id            = V4L2_STD_SECAM_LC,
 320                 NORM_625_50,
 321
 322                 .sync_control  = 0x18,
 323                 .luma_control  = 0x1b,
 324                 .chroma_ctrl1  = 0xd1,
 325                 .chroma_gain   = 0x80,
 326                 .chroma_ctrl2  = 0x00,
 327                 .vgate_misc    = 0x1c,
 328
 329         },{
 330                 .name          = "PAL-M",
 331                 .id            = V4L2_STD_PAL_M,
 332                 NORM_525_60,
 333
 334                 .sync_control  = 0x59,
 335                 .luma_control  = 0x40,
 336                 .chroma_ctrl1  = 0xb9,
 337                 .chroma_gain   = 0x2a,
 338                 .chroma_ctrl2  = 0x0e,
 339                 .vgate_misc    = 0x18,
 340
 341         },{
 342                 .name          = "PAL-Nc",
 343                 .id            = V4L2_STD_PAL_Nc,
 344                 NORM_625_50,
 345
 346                 .sync_control  = 0x18,
 347                 .luma_control  = 0x40,
 348                 .chroma_ctrl1  = 0xa1,
 349                 .chroma_gain   = 0x2a,
 350                 .chroma_ctrl2  = 0x06,
 351                 .vgate_misc    = 0x1c,
 352
 353         },{
 354                 .name          = "PAL-60",
 355                 .id            = V4L2_STD_PAL_60,
 356
 357                 .h_start       = 0,
 358                 .h_stop        = 719,
 359                 .video_v_start = 23,
 360                 .video_v_stop  = 262,
 361                 .vbi_v_start_0 = 10,
 362                 .vbi_v_stop_0  = 21,
 363                 .vbi_v_start_1 = 273,
 364                 .src_timing    = 7,
 365
 366                 .sync_control  = 0x18,
 367                 .luma_control  = 0x40,
 368                 .chroma_ctrl1  = 0x81,
 369                 .chroma_gain   = 0x2a,
 370                 .chroma_ctrl2  = 0x06,
 371                 .vgate_misc    = 0x1c,
 372         }
 373 };
 374 #define TVNORMS ARRAY_SIZE(tvnorms)
 375
 376 static struct saa7134_format* format_by_fourcc(unsigned int fourcc)
 377 {
 378         unsigned int i;
 379
 380         for (i = 0; i < FORMATS; i++)
 381                 if (formats[i].fourcc == fourcc)
 382                         return formats+i;
 383         return NULL;
 384 }
 385
 386 /* ------------------------------------------------------------------ */
 387
 388 static void set_tvnorm(struct saa7134_dev *dev, struct saa7134_tvnorm *norm)
 389 {
 390         video_dbg("set tv norm = %s\n", norm->name);
 391         dev->tvnorm = norm;
 392
 393         /* setup cropping */
 394         dev->crop_bounds.left    = norm->h_start;
 395         dev->crop_defrect.left   = norm->h_start;
 396         dev->crop_bounds.width   = norm->h_stop - norm->h_start +1;
 397         dev->crop_defrect.width  = norm->h_stop - norm->h_start +1;
 398
 399         dev->crop_bounds.top     = (norm->vbi_v_stop_0+1)*2;
 400         dev->crop_defrect.top    = norm->video_v_start*2;
 401         dev->crop_bounds.height  = ((norm->id & V4L2_STD_525_60) ? 524 : 624)
 402                 - dev->crop_bounds.top;
 403         dev->crop_defrect.height = (norm->video_v_stop - norm->video_v_start +1)*2;
 404
 405         dev->crop_current = dev->crop_defrect;
 406
 407         saa7134_set_tvnorm_hw(dev);
 408 }
 409
 410 static void video_mux(struct saa7134_dev *dev, int input)
 411 {
 412         video_dbg("video input = %d [%s]\n", input, card_in(dev, input).name);
 413         dev->ctl_input = input;
 414         set_tvnorm(dev, dev->tvnorm);
 415         saa7134_tvaudio_setinput(dev, &card_in(dev, input));
 416 }
 417
 418
 419 static void saa7134_set_decoder(struct saa7134_dev *dev)
 420 {
 421         int luma_control, sync_control, chroma_ctrl1, mux;
 422
 423         struct saa7134_tvnorm *norm = dev->tvnorm;
 424         mux = card_in(dev, dev->ctl_input).vmux;
 425
 426         luma_control = norm->luma_control;
 427         sync_control = norm->sync_control;
 428         chroma_ctrl1 = norm->chroma_ctrl1;
 429
 430         if (mux > 5)
 431                 luma_control |= 0x80; /* svideo */
 432         if (noninterlaced || dev->nosignal)
 433                 sync_control |= 0x20;
 434
 435         /* switch on auto standard detection */
 436         sync_control |= SAA7134_SYNC_CTRL_AUFD;
 437         chroma_ctrl1 |= SAA7134_CHROMA_CTRL1_AUTO0;
 438         chroma_ctrl1 &= ~SAA7134_CHROMA_CTRL1_FCTC;
 439         luma_control &= ~SAA7134_LUMA_CTRL_LDEL;
 440
 441         /* setup video decoder */
 442         saa_writeb(SAA7134_INCR_DELAY,            0x08);
 443         saa_writeb(SAA7134_ANALOG_IN_CTRL1,       0xc0 | mux);
 444         saa_writeb(SAA7134_ANALOG_IN_CTRL2,       0x00);
 445
 446         saa_writeb(SAA7134_ANALOG_IN_CTRL3,       0x90);
 447         saa_writeb(SAA7134_ANALOG_IN_CTRL4,       0x90);
 448         saa_writeb(SAA7134_HSYNC_START,           0xeb);
 449         saa_writeb(SAA7134_HSYNC_STOP,            0xe0);
 450         saa_writeb(SAA7134_SOURCE_TIMING1,        norm->src_timing);
 451
 452         saa_writeb(SAA7134_SYNC_CTRL,             sync_control);
 453         saa_writeb(SAA7134_LUMA_CTRL,             luma_control);
 454         saa_writeb(SAA7134_DEC_LUMA_BRIGHT,       dev->ctl_bright);
 455
 456         saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
 457                 dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
 458
 459         saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
 460                 dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
 461
 462         saa_writeb(SAA7134_DEC_CHROMA_HUE,        dev->ctl_hue);
 463         saa_writeb(SAA7134_CHROMA_CTRL1,          chroma_ctrl1);
 464         saa_writeb(SAA7134_CHROMA_GAIN,           norm->chroma_gain);
 465
 466         saa_writeb(SAA7134_CHROMA_CTRL2,          norm->chroma_ctrl2);
 467         saa_writeb(SAA7134_MODE_DELAY_CTRL,       0x00);
 468
 469         saa_writeb(SAA7134_ANALOG_ADC,            0x01);
 470         saa_writeb(SAA7134_VGATE_START,           0x11);
 471         saa_writeb(SAA7134_VGATE_STOP,            0xfe);
 472         saa_writeb(SAA7134_MISC_VGATE_MSB,        norm->vgate_misc);
 473         saa_writeb(SAA7134_RAW_DATA_GAIN,         0x40);
 474         saa_writeb(SAA7134_RAW_DATA_OFFSET,       0x80);
 475 }
 476
 477 void saa7134_set_tvnorm_hw(struct saa7134_dev *dev)
 478 {
 479         saa7134_set_decoder(dev);
 480
 481         if (card_in(dev, dev->ctl_input).tv)
 482                 saa_call_all(dev, video, s_std, dev->tvnorm->id);
 483         /* Set the correct norm for the saa6752hs. This function
 484            does nothing if there is no saa6752hs. */
 485         saa_call_empress(dev, video, s_std, dev->tvnorm->id);
 486 }
 487
 488 static void set_h_prescale(struct saa7134_dev *dev, int task, int prescale)
 489 {
 490         static const struct {
 491                 int xpsc;
 492                 int xacl;
 493                 int xc2_1;
 494                 int xdcg;
 495                 int vpfy;
 496         } vals[] = {
 497                 /* XPSC XACL XC2_1 XDCG VPFY */
 498                 {    1,   0,    0,    0,   0 },
 499                 {    2,   2,    1,    2,   2 },
 500                 {    3,   4,    1,    3,   2 },
 501                 {    4,   8,    1,    4,   2 },
 502                 {    5,   8,    1,    4,   2 },
 503                 {    6,   8,    1,    4,   3 },
 504                 {    7,   8,    1,    4,   3 },
 505                 {    8,  15,    0,    4,   3 },
 506                 {    9,  15,    0,    4,   3 },
 507                 {   10,  16,    1,    5,   3 },
 508         };
 509         static const int count = ARRAY_SIZE(vals);
 510         int i;
 511
 512         for (i = 0; i < count; i++)
 513                 if (vals[i].xpsc == prescale)
 514                         break;
 515         if (i == count)
 516                 return;
 517
 518         saa_writeb(SAA7134_H_PRESCALE(task), vals[i].xpsc);
 519         saa_writeb(SAA7134_ACC_LENGTH(task), vals[i].xacl);
 520         saa_writeb(SAA7134_LEVEL_CTRL(task),
 521                    (vals[i].xc2_1 << 3) | (vals[i].xdcg));
 522         saa_andorb(SAA7134_FIR_PREFILTER_CTRL(task), 0x0f,
 523                    (vals[i].vpfy << 2) | vals[i].vpfy);
 524 }
 525
 526 static void set_v_scale(struct saa7134_dev *dev, int task, int yscale)
 527 {
 528         int val,mirror;
 529
 530         saa_writeb(SAA7134_V_SCALE_RATIO1(task), yscale &  0xff);
 531         saa_writeb(SAA7134_V_SCALE_RATIO2(task), yscale >> 8);
 532
 533         mirror = (dev->ctl_mirror) ? 0x02 : 0x00;
 534         if (yscale < 2048) {
 535                 /* LPI */
 536                 video_dbg("yscale LPI yscale=%d\n", yscale);
 537                 saa_writeb(SAA7134_V_FILTER(task), 0x00 | mirror);
 538                 saa_writeb(SAA7134_LUMA_CONTRAST(task), 0x40);
 539                 saa_writeb(SAA7134_CHROMA_SATURATION(task), 0x40);
 540         } else {
 541                 /* ACM */
 542                 val = 0x40 * 1024 / yscale;
 543                 video_dbg("yscale ACM yscale=%d val=0x%x\n", yscale, val);
 544                 saa_writeb(SAA7134_V_FILTER(task), 0x01 | mirror);
 545                 saa_writeb(SAA7134_LUMA_CONTRAST(task), val);
 546                 saa_writeb(SAA7134_CHROMA_SATURATION(task), val);
 547         }
 548         saa_writeb(SAA7134_LUMA_BRIGHT(task),       0x80);
 549 }
 550
 551 static void set_size(struct saa7134_dev *dev, int task,
 552                      int width, int height, int interlace)
 553 {
 554         int prescale,xscale,yscale,y_even,y_odd;
 555         int h_start, h_stop, v_start, v_stop;
 556         int div = interlace ? 2 : 1;
 557
 558         /* setup video scaler */
 559         h_start = dev->crop_current.left;
 560         v_start = dev->crop_current.top/2;
 561         h_stop  = (dev->crop_current.left + dev->crop_current.width -1);
 562         v_stop  = (dev->crop_current.top + dev->crop_current.height -1)/2;
 563
 564         saa_writeb(SAA7134_VIDEO_H_START1(task), h_start &  0xff);
 565         saa_writeb(SAA7134_VIDEO_H_START2(task), h_start >> 8);
 566         saa_writeb(SAA7134_VIDEO_H_STOP1(task),  h_stop  &  0xff);
 567         saa_writeb(SAA7134_VIDEO_H_STOP2(task),  h_stop  >> 8);
 568         saa_writeb(SAA7134_VIDEO_V_START1(task), v_start &  0xff);
 569         saa_writeb(SAA7134_VIDEO_V_START2(task), v_start >> 8);
 570         saa_writeb(SAA7134_VIDEO_V_STOP1(task),  v_stop  &  0xff);
 571         saa_writeb(SAA7134_VIDEO_V_STOP2(task),  v_stop  >> 8);
 572
 573         prescale = dev->crop_current.width / width;
 574         if (0 == prescale)
 575                 prescale = 1;
 576         xscale = 1024 * dev->crop_current.width / prescale / width;
 577         yscale = 512 * div * dev->crop_current.height / height;
 578         video_dbg("prescale=%d xscale=%d yscale=%d\n",
 579                   prescale, xscale, yscale);
 580         set_h_prescale(dev,task,prescale);
 581         saa_writeb(SAA7134_H_SCALE_INC1(task),      xscale &  0xff);
 582         saa_writeb(SAA7134_H_SCALE_INC2(task),      xscale >> 8);
 583         set_v_scale(dev,task,yscale);
 584
 585         saa_writeb(SAA7134_VIDEO_PIXELS1(task),     width  & 0xff);
 586         saa_writeb(SAA7134_VIDEO_PIXELS2(task),     width  >> 8);
 587         saa_writeb(SAA7134_VIDEO_LINES1(task),      height/div & 0xff);
 588         saa_writeb(SAA7134_VIDEO_LINES2(task),      height/div >> 8);
 589
 590         /* deinterlace y offsets */
 591         y_odd  = dev->ctl_y_odd;
 592         y_even = dev->ctl_y_even;
 593         saa_writeb(SAA7134_V_PHASE_OFFSET0(task), y_odd);
 594         saa_writeb(SAA7134_V_PHASE_OFFSET1(task), y_even);
 595         saa_writeb(SAA7134_V_PHASE_OFFSET2(task), y_odd);
 596         saa_writeb(SAA7134_V_PHASE_OFFSET3(task), y_even);
 597 }
 598
 599 /* ------------------------------------------------------------------ */
 600
 601 struct cliplist {
 602         __u16 position;
 603         __u8  enable;
 604         __u8  disable;
 605 };
 606
 607 static void set_cliplist(struct saa7134_dev *dev, int reg,
 608                         struct cliplist *cl, int entries, char *name)
 609 {
 610         __u8 winbits = 0;
 611         int i;
 612
 613         for (i = 0; i < entries; i++) {
 614                 winbits |= cl[i].enable;
 615                 winbits &= ~cl[i].disable;
 616                 if (i < 15 && cl[i].position == cl[i+1].position)
 617                         continue;
 618                 saa_writeb(reg + 0, winbits);
 619                 saa_writeb(reg + 2, cl[i].position & 0xff);
 620                 saa_writeb(reg + 3, cl[i].position >> 8);
 621                 video_dbg("clip: %s winbits=%02x pos=%d\n",
 622                         name,winbits,cl[i].position);
 623                 reg += 8;
 624         }
 625         for (; reg < 0x400; reg += 8) {
 626                 saa_writeb(reg+ 0, 0);
 627                 saa_writeb(reg + 1, 0);
 628                 saa_writeb(reg + 2, 0);
 629                 saa_writeb(reg + 3, 0);
 630         }
 631 }
 632
 633 static int clip_range(int val)
 634 {
 635         if (val < 0)
 636                 val = 0;
 637         return val;
 638 }
 639
 640 /* Sort into smallest position first order */
 641 static int cliplist_cmp(const void *a, const void *b)
 642 {
 643         const struct cliplist *cla = a;
 644         const struct cliplist *clb = b;
 645         if (cla->position < clb->position)
 646                 return -1;
 647         if (cla->position > clb->position)
 648                 return 1;
 649         return 0;
 650 }
 651
 652 static int setup_clipping(struct saa7134_dev *dev, struct v4l2_clip *clips,
 653                           int nclips, int interlace)
 654 {
 655         struct cliplist col[16], row[16];
 656         int cols = 0, rows = 0, i;
 657         int div = interlace ? 2 : 1;
 658
 659         memset(col, 0, sizeof(col));
 660         memset(row, 0, sizeof(row));
 661         for (i = 0; i < nclips && i < 8; i++) {
 662                 col[cols].position = clip_range(clips[i].c.left);
 663                 col[cols].enable   = (1 << i);
 664                 cols++;
 665                 col[cols].position = clip_range(clips[i].c.left+clips[i].c.width);
 666                 col[cols].disable  = (1 << i);
 667                 cols++;
 668                 row[rows].position = clip_range(clips[i].c.top / div);
 669                 row[rows].enable   = (1 << i);
 670                 rows++;
 671                 row[rows].position = clip_range((clips[i].c.top + clips[i].c.height)
 672                                                 / div);
 673                 row[rows].disable  = (1 << i);
 674                 rows++;
 675         }
 676         sort(col, cols, sizeof col[0], cliplist_cmp, NULL);
 677         sort(row, rows, sizeof row[0], cliplist_cmp, NULL);
 678         set_cliplist(dev,0x380,col,cols,"cols");
 679         set_cliplist(dev,0x384,row,rows,"rows");
 680         return 0;
 681 }
 682
 683 static int verify_preview(struct saa7134_dev *dev, struct v4l2_window *win, bool try)
 684 {
 685         enum v4l2_field field;
 686         int maxw, maxh;
 687
 688         if (!try && (dev->ovbuf.base == NULL || dev->ovfmt == NULL))
 689                 return -EINVAL;
 690         if (win->w.width < 48)
 691                 win->w.width = 48;
 692         if (win->w.height < 32)
 693                 win->w.height = 32;
 694         if (win->clipcount > 8)
 695                 win->clipcount = 8;
 696
 697         win->chromakey = 0;
 698         win->global_alpha = 0;
 699         field = win->field;
 700         maxw  = dev->crop_current.width;
 701         maxh  = dev->crop_current.height;
 702
 703         if (V4L2_FIELD_ANY == field) {
 704                 field = (win->w.height > maxh/2)
 705                         ? V4L2_FIELD_INTERLACED
 706                         : V4L2_FIELD_TOP;
 707         }
 708         switch (field) {
 709         case V4L2_FIELD_TOP:
 710         case V4L2_FIELD_BOTTOM:
 711                 maxh = maxh / 2;
 712                 break;
 713         default:
 714                 field = V4L2_FIELD_INTERLACED;
 715                 break;
 716         }
 717
 718         win->field = field;
 719         if (win->w.width > maxw)
 720                 win->w.width = maxw;
 721         if (win->w.height > maxh)
 722                 win->w.height = maxh;
 723         return 0;
 724 }
 725
 726 static int start_preview(struct saa7134_dev *dev)
 727 {
 728         unsigned long base,control,bpl;
 729         int err;
 730
 731         err = verify_preview(dev, &dev->win, false);
 732         if (0 != err)
 733                 return err;
 734
 735         dev->ovfield = dev->win.field;
 736         video_dbg("start_preview %dx%d+%d+%d %s field=%s\n",
 737                 dev->win.w.width, dev->win.w.height,
 738                 dev->win.w.left, dev->win.w.top,
 739                 dev->ovfmt->name, v4l2_field_names[dev->ovfield]);
 740
 741         /* setup window + clipping */
 742         set_size(dev, TASK_B, dev->win.w.width, dev->win.w.height,
 743                  V4L2_FIELD_HAS_BOTH(dev->ovfield));
 744         setup_clipping(dev, dev->clips, dev->nclips,
 745                        V4L2_FIELD_HAS_BOTH(dev->ovfield));
 746         if (dev->ovfmt->yuv)
 747                 saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x03);
 748         else
 749                 saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x01);
 750         saa_writeb(SAA7134_OFMT_VIDEO_B, dev->ovfmt->pm | 0x20);
 751
 752         /* dma: setup channel 1 (= Video Task B) */
 753         base  = (unsigned long)dev->ovbuf.base;
 754         base += dev->ovbuf.fmt.bytesperline * dev->win.w.top;
 755         base += dev->ovfmt->depth/8         * dev->win.w.left;
 756         bpl   = dev->ovbuf.fmt.bytesperline;
 757         control = SAA7134_RS_CONTROL_BURST_16;
 758         if (dev->ovfmt->bswap)
 759                 control |= SAA7134_RS_CONTROL_BSWAP;
 760         if (dev->ovfmt->wswap)
 761                 control |= SAA7134_RS_CONTROL_WSWAP;
 762         if (V4L2_FIELD_HAS_BOTH(dev->ovfield)) {
 763                 saa_writel(SAA7134_RS_BA1(1),base);
 764                 saa_writel(SAA7134_RS_BA2(1),base+bpl);
 765                 saa_writel(SAA7134_RS_PITCH(1),bpl*2);
 766                 saa_writel(SAA7134_RS_CONTROL(1),control);
 767         } else {
 768                 saa_writel(SAA7134_RS_BA1(1),base);
 769                 saa_writel(SAA7134_RS_BA2(1),base);
 770                 saa_writel(SAA7134_RS_PITCH(1),bpl);
 771                 saa_writel(SAA7134_RS_CONTROL(1),control);
 772         }
 773
 774         /* start dma */
 775         dev->ovenable = 1;
 776         saa7134_set_dmabits(dev);
 777
 778         return 0;
 779 }
 780
 781 static int stop_preview(struct saa7134_dev *dev)
 782 {
 783         dev->ovenable = 0;
 784         saa7134_set_dmabits(dev);
 785         return 0;
 786 }
 787
 788 /* ------------------------------------------------------------------ */
 789
 790 static int buffer_activate(struct saa7134_dev *dev,
 791                            struct saa7134_buf *buf,
 792                            struct saa7134_buf *next)
 793 {
 794         struct saa7134_dmaqueue *dmaq = buf->vb2.vb2_buf.vb2_queue->drv_priv;
 795         unsigned long base,control,bpl;
 796         unsigned long bpl_uv,lines_uv,base2,base3,tmp; /* planar */
 797
 798         video_dbg("buffer_activate buf=%p\n", buf);
 799         buf->top_seen = 0;
 800
 801         set_size(dev, TASK_A, dev->width, dev->height,
 802                  V4L2_FIELD_HAS_BOTH(dev->field));
 803         if (dev->fmt->yuv)
 804                 saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x03);
 805         else
 806                 saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x01);
 807         saa_writeb(SAA7134_OFMT_VIDEO_A, dev->fmt->pm);
 808
 809         /* DMA: setup channel 0 (= Video Task A0) */
 810         base  = saa7134_buffer_base(buf);
 811         if (dev->fmt->planar)
 812                 bpl = dev->width;
 813         else
 814                 bpl = (dev->width * dev->fmt->depth) / 8;
 815         control = SAA7134_RS_CONTROL_BURST_16 |
 816                 SAA7134_RS_CONTROL_ME |
 817                 (dmaq->pt.dma >> 12);
 818         if (dev->fmt->bswap)
 819                 control |= SAA7134_RS_CONTROL_BSWAP;
 820         if (dev->fmt->wswap)
 821                 control |= SAA7134_RS_CONTROL_WSWAP;
 822         if (V4L2_FIELD_HAS_BOTH(dev->field)) {
 823                 /* interlaced */
 824                 saa_writel(SAA7134_RS_BA1(0),base);
 825                 saa_writel(SAA7134_RS_BA2(0),base+bpl);
 826                 saa_writel(SAA7134_RS_PITCH(0),bpl*2);
 827         } else {
 828                 /* non-interlaced */
 829                 saa_writel(SAA7134_RS_BA1(0),base);
 830                 saa_writel(SAA7134_RS_BA2(0),base);
 831                 saa_writel(SAA7134_RS_PITCH(0),bpl);
 832         }
 833         saa_writel(SAA7134_RS_CONTROL(0),control);
 834
 835         if (dev->fmt->planar) {
 836                 /* DMA: setup channel 4+5 (= planar task A) */
 837                 bpl_uv   = bpl >> dev->fmt->hshift;
 838                 lines_uv = dev->height >> dev->fmt->vshift;
 839                 base2    = base + bpl * dev->height;
 840                 base3    = base2 + bpl_uv * lines_uv;
 841                 if (dev->fmt->uvswap)
 842                         tmp = base2, base2 = base3, base3 = tmp;
 843                 video_dbg("uv: bpl=%ld lines=%ld base2/3=%ld/%ld\n",
 844                         bpl_uv,lines_uv,base2,base3);
 845                 if (V4L2_FIELD_HAS_BOTH(dev->field)) {
 846                         /* interlaced */
 847                         saa_writel(SAA7134_RS_BA1(4),base2);
 848                         saa_writel(SAA7134_RS_BA2(4),base2+bpl_uv);
 849                         saa_writel(SAA7134_RS_PITCH(4),bpl_uv*2);
 850                         saa_writel(SAA7134_RS_BA1(5),base3);
 851                         saa_writel(SAA7134_RS_BA2(5),base3+bpl_uv);
 852                         saa_writel(SAA7134_RS_PITCH(5),bpl_uv*2);
 853                 } else {
 854                         /* non-interlaced */
 855                         saa_writel(SAA7134_RS_BA1(4),base2);
 856                         saa_writel(SAA7134_RS_BA2(4),base2);
 857                         saa_writel(SAA7134_RS_PITCH(4),bpl_uv);
 858                         saa_writel(SAA7134_RS_BA1(5),base3);
 859                         saa_writel(SAA7134_RS_BA2(5),base3);
 860                         saa_writel(SAA7134_RS_PITCH(5),bpl_uv);
 861                 }
 862                 saa_writel(SAA7134_RS_CONTROL(4),control);
 863                 saa_writel(SAA7134_RS_CONTROL(5),control);
 864         }
 865
 866         /* start DMA */
 867         saa7134_set_dmabits(dev);
 868         mod_timer(&dmaq->timeout, jiffies + BUFFER_TIMEOUT);
 869         return 0;
 870 }
 871
 872 static int buffer_init(struct vb2_buffer *vb2)
 873 {
 874         struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
 875         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
 876         struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 877
 878         dmaq->curr = NULL;
 879         buf->activate = buffer_activate;
 880         return 0;
 881 }
 882
 883 static int buffer_prepare(struct vb2_buffer *vb2)
 884 {
 885         struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
 886         struct saa7134_dev *dev = dmaq->dev;
 887         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
 888         struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 889         struct sg_table *dma = vb2_dma_sg_plane_desc(vb2, 0);
 890         unsigned int size;
 891
 892         if (dma->sgl->offset) {
 893                 pr_err("The buffer is not page-aligned\n");
 894                 return -EINVAL;
 895         }
 896         size = (dev->width * dev->height * dev->fmt->depth) >> 3;
 897         if (vb2_plane_size(vb2, 0) < size)
 898                 return -EINVAL;
 899
 900         vb2_set_plane_payload(vb2, 0, size);
 901         vbuf->field = dev->field;
 902
 903         return saa7134_pgtable_build(dev->pci, &dmaq->pt, dma->sgl, dma->nents,
 904                                     saa7134_buffer_startpage(buf));
 905 }
 906
 907 static int queue_setup(struct vb2_queue *q, const void *parg,
 908                            unsigned int *nbuffers, unsigned int *nplanes,
 909                            unsigned int sizes[], void *alloc_ctxs[])
 910 {
 911         struct saa7134_dmaqueue *dmaq = q->drv_priv;
 912         struct saa7134_dev *dev = dmaq->dev;
 913         int size = dev->fmt->depth * dev->width * dev->height >> 3;
 914
 915         if (dev->width    < 48 ||
 916             dev->height   < 32 ||
 917             dev->width/4  > dev->crop_current.width  ||
 918             dev->height/4 > dev->crop_current.height ||
 919             dev->width    > dev->crop_bounds.width  ||
 920             dev->height   > dev->crop_bounds.height)
 921                 return -EINVAL;
 922
 923         *nbuffers = saa7134_buffer_count(size, *nbuffers);
 924         *nplanes = 1;
 925         sizes[0] = size;
 926         alloc_ctxs[0] = dev->alloc_ctx;
 927         return 0;
 928 }
 929
 930 /*
 931  * move buffer to hardware queue
 932  */
 933 void saa7134_vb2_buffer_queue(struct vb2_buffer *vb)
 934 {
 935         struct saa7134_dmaqueue *dmaq = vb->vb2_queue->drv_priv;
 936         struct saa7134_dev *dev = dmaq->dev;
 937         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 938         struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 939
 940         saa7134_buffer_queue(dev, dmaq, buf);
 941 }
 942 EXPORT_SYMBOL_GPL(saa7134_vb2_buffer_queue);
 943
 944 int saa7134_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
 945 {
 946         struct saa7134_dmaqueue *dmaq = vq->drv_priv;
 947         struct saa7134_dev *dev = dmaq->dev;
 948
 949         /*
 950          * Planar video capture and TS share the same DMA channel,
 951          * so only one can be active at a time.
 952          */
 953         if (card_is_empress(dev) && vb2_is_busy(&dev->empress_vbq) &&
 954             dmaq == &dev->video_q && dev->fmt->planar) {
 955                 struct saa7134_buf *buf, *tmp;
 956
 957                 list_for_each_entry_safe(buf, tmp, &dmaq->queue, entry) {
 958                         list_del(&buf->entry);
 959                         vb2_buffer_done(&buf->vb2.vb2_buf,
 960                                         VB2_BUF_STATE_QUEUED);
 961                 }
 962                 if (dmaq->curr) {
 963                         vb2_buffer_done(&dmaq->curr->vb2.vb2_buf,
 964                                         VB2_BUF_STATE_QUEUED);
 965                         dmaq->curr = NULL;
 966                 }
 967                 return -EBUSY;
 968         }
 969
 970         /* The SAA7134 has a 1K FIFO; the datasheet suggests that when
 971          * configured conservatively, there's 22 usec of buffering for video.
 972          * We therefore request a DMA latency of 20 usec, giving us 2 usec of
 973          * margin in case the FIFO is configured differently to the datasheet.
 974          * Unfortunately, I lack register-level documentation to check the
 975          * Linux FIFO setup and confirm the perfect value.
 976          */
 977         if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
 978             (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
 979                 pm_qos_add_request(&dev->qos_request,
 980                         PM_QOS_CPU_DMA_LATENCY, 20);
 981         dmaq->seq_nr = 0;
 982
 983         return 0;
 984 }
 985
 986 void saa7134_vb2_stop_streaming(struct vb2_queue *vq)
 987 {
 988         struct saa7134_dmaqueue *dmaq = vq->drv_priv;
 989         struct saa7134_dev *dev = dmaq->dev;
 990
 991         saa7134_stop_streaming(dev, dmaq);
 992
 993         if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
 994             (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
 995                 pm_qos_remove_request(&dev->qos_request);
 996 }
 997
 998 static struct vb2_ops vb2_qops = {
 999         .queue_setup    = queue_setup,
1000         .buf_init       = buffer_init,
1001         .buf_prepare    = buffer_prepare,
1002         .buf_queue      = saa7134_vb2_buffer_queue,
1003         .wait_prepare   = vb2_ops_wait_prepare,
1004         .wait_finish    = vb2_ops_wait_finish,
1005         .start_streaming = saa7134_vb2_start_streaming,
1006         .stop_streaming = saa7134_vb2_stop_streaming,
1007 };
1008
1009 /* ------------------------------------------------------------------ */
1010
1011 static int saa7134_s_ctrl(struct v4l2_ctrl *ctrl)
1012 {
1013         struct saa7134_dev *dev = container_of(ctrl->handler, struct saa7134_dev, ctrl_handler);
1014         unsigned long flags;
1015         int restart_overlay = 0;
1016
1017         switch (ctrl->id) {
1018         case V4L2_CID_BRIGHTNESS:
1019                 dev->ctl_bright = ctrl->val;
1020                 saa_writeb(SAA7134_DEC_LUMA_BRIGHT, ctrl->val);
1021                 break;
1022         case V4L2_CID_HUE:
1023                 dev->ctl_hue = ctrl->val;
1024                 saa_writeb(SAA7134_DEC_CHROMA_HUE, ctrl->val);
1025                 break;
1026         case V4L2_CID_CONTRAST:
1027                 dev->ctl_contrast = ctrl->val;
1028                 saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1029                            dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1030                 break;
1031         case V4L2_CID_SATURATION:
1032                 dev->ctl_saturation = ctrl->val;
1033                 saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1034                            dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1035                 break;
1036         case V4L2_CID_AUDIO_MUTE:
1037                 dev->ctl_mute = ctrl->val;
1038                 saa7134_tvaudio_setmute(dev);
1039                 break;
1040         case V4L2_CID_AUDIO_VOLUME:
1041                 dev->ctl_volume = ctrl->val;
1042                 saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
1043                 break;
1044         case V4L2_CID_PRIVATE_INVERT:
1045                 dev->ctl_invert = ctrl->val;
1046                 saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1047                            dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1048                 saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1049                            dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1050                 break;
1051         case V4L2_CID_HFLIP:
1052                 dev->ctl_mirror = ctrl->val;
1053                 restart_overlay = 1;
1054                 break;
1055         case V4L2_CID_PRIVATE_Y_EVEN:
1056                 dev->ctl_y_even = ctrl->val;
1057                 restart_overlay = 1;
1058                 break;
1059         case V4L2_CID_PRIVATE_Y_ODD:
1060                 dev->ctl_y_odd = ctrl->val;
1061                 restart_overlay = 1;
1062                 break;
1063         case V4L2_CID_PRIVATE_AUTOMUTE:
1064         {
1065                 struct v4l2_priv_tun_config tda9887_cfg;
1066
1067                 tda9887_cfg.tuner = TUNER_TDA9887;
1068                 tda9887_cfg.priv = &dev->tda9887_conf;
1069
1070                 dev->ctl_automute = ctrl->val;
1071                 if (dev->tda9887_conf) {
1072                         if (dev->ctl_automute)
1073                                 dev->tda9887_conf |= TDA9887_AUTOMUTE;
1074                         else
1075                                 dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
1076
1077                         saa_call_all(dev, tuner, s_config, &tda9887_cfg);
1078                 }
1079                 break;
1080         }
1081         default:
1082                 return -EINVAL;
1083         }
1084         if (restart_overlay && dev->overlay_owner) {
1085                 spin_lock_irqsave(&dev->slock, flags);
1086                 stop_preview(dev);
1087                 start_preview(dev);
1088                 spin_unlock_irqrestore(&dev->slock, flags);
1089         }
1090         return 0;
1091 }
1092
1093 /* ------------------------------------------------------------------ */
1094
1095 static int video_open(struct file *file)
1096 {
1097         struct video_device *vdev = video_devdata(file);
1098         struct saa7134_dev *dev = video_drvdata(file);
1099         int ret = v4l2_fh_open(file);
1100
1101         if (ret < 0)
1102                 return ret;
1103
1104         mutex_lock(&dev->lock);
1105         if (vdev->vfl_type == VFL_TYPE_RADIO) {
1106                 /* switch to radio mode */
1107                 saa7134_tvaudio_setinput(dev, &card(dev).radio);
1108                 saa_call_all(dev, tuner, s_radio);
1109         } else {
1110                 /* switch to video/vbi mode */
1111                 video_mux(dev, dev->ctl_input);
1112         }
1113         mutex_unlock(&dev->lock);
1114
1115         return 0;
1116 }
1117
1118 static int video_release(struct file *file)
1119 {
1120         struct video_device *vdev = video_devdata(file);
1121         struct saa7134_dev *dev = video_drvdata(file);
1122         struct v4l2_fh *fh = file->private_data;
1123         struct saa6588_command cmd;
1124         unsigned long flags;
1125
1126         mutex_lock(&dev->lock);
1127         saa7134_tvaudio_close(dev);
1128
1129         /* turn off overlay */
1130         if (fh == dev->overlay_owner) {
1131                 spin_lock_irqsave(&dev->slock,flags);
1132                 stop_preview(dev);
1133                 spin_unlock_irqrestore(&dev->slock,flags);
1134                 dev->overlay_owner = NULL;
1135         }
1136
1137         if (vdev->vfl_type == VFL_TYPE_RADIO)
1138                 v4l2_fh_release(file);
1139         else
1140                 _vb2_fop_release(file, NULL);
1141
1142         /* ts-capture will not work in planar mode, so turn it off Hac: 04.05*/
1143         saa_andorb(SAA7134_OFMT_VIDEO_A, 0x1f, 0);
1144         saa_andorb(SAA7134_OFMT_VIDEO_B, 0x1f, 0);
1145         saa_andorb(SAA7134_OFMT_DATA_A, 0x1f, 0);
1146         saa_andorb(SAA7134_OFMT_DATA_B, 0x1f, 0);
1147
1148         saa_call_all(dev, core, s_power, 0);
1149         if (vdev->vfl_type == VFL_TYPE_RADIO)
1150                 saa_call_all(dev, core, ioctl, SAA6588_CMD_CLOSE, &cmd);
1151         mutex_unlock(&dev->lock);
1152
1153         return 0;
1154 }
1155
1156 static ssize_t radio_read(struct file *file, char __user *data,
1157                          size_t count, loff_t *ppos)
1158 {
1159         struct saa7134_dev *dev = video_drvdata(file);
1160         struct saa6588_command cmd;
1161
1162         cmd.block_count = count/3;
1163         cmd.nonblocking = file->f_flags & O_NONBLOCK;
1164         cmd.buffer = data;
1165         cmd.instance = file;
1166         cmd.result = -ENODEV;
1167
1168         mutex_lock(&dev->lock);
1169         saa_call_all(dev, core, ioctl, SAA6588_CMD_READ, &cmd);
1170         mutex_unlock(&dev->lock);
1171
1172         return cmd.result;
1173 }
1174
1175 static unsigned int radio_poll(struct file *file, poll_table *wait)
1176 {
1177         struct saa7134_dev *dev = video_drvdata(file);
1178         struct saa6588_command cmd;
1179         unsigned int rc = v4l2_ctrl_poll(file, wait);
1180
1181         cmd.instance = file;
1182         cmd.event_list = wait;
1183         cmd.result = 0;
1184         mutex_lock(&dev->lock);
1185         saa_call_all(dev, core, ioctl, SAA6588_CMD_POLL, &cmd);
1186         mutex_unlock(&dev->lock);
1187
1188         return rc | cmd.result;
1189 }
1190
1191 /* ------------------------------------------------------------------ */
1192
1193 static int saa7134_try_get_set_fmt_vbi_cap(struct file *file, void *priv,
1194                                                 struct v4l2_format *f)
1195 {
1196         struct saa7134_dev *dev = video_drvdata(file);
1197         struct saa7134_tvnorm *norm = dev->tvnorm;
1198
1199         memset(&f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1200         f->fmt.vbi.sampling_rate = 6750000 * 4;
1201         f->fmt.vbi.samples_per_line = 2048 /* VBI_LINE_LENGTH */;
1202         f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1203         f->fmt.vbi.offset = 64 * 4;
1204         f->fmt.vbi.start[0] = norm->vbi_v_start_0;
1205         f->fmt.vbi.count[0] = norm->vbi_v_stop_0 - norm->vbi_v_start_0 +1;
1206         f->fmt.vbi.start[1] = norm->vbi_v_start_1;
1207         f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1208         f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
1209
1210         return 0;
1211 }
1212
1213 static int saa7134_g_fmt_vid_cap(struct file *file, void *priv,
1214                                 struct v4l2_format *f)
1215 {
1216         struct saa7134_dev *dev = video_drvdata(file);
1217
1218         f->fmt.pix.width        = dev->width;
1219         f->fmt.pix.height       = dev->height;
1220         f->fmt.pix.field        = dev->field;
1221         f->fmt.pix.pixelformat  = dev->fmt->fourcc;
1222         f->fmt.pix.bytesperline =
1223                 (f->fmt.pix.width * dev->fmt->depth) >> 3;
1224         f->fmt.pix.sizeimage =
1225                 f->fmt.pix.height * f->fmt.pix.bytesperline;
1226         f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
1227         return 0;
1228 }
1229
1230 static int saa7134_g_fmt_vid_overlay(struct file *file, void *priv,
1231                                 struct v4l2_format *f)
1232 {
1233         struct saa7134_dev *dev = video_drvdata(file);
1234         struct v4l2_clip __user *clips = f->fmt.win.clips;
1235         u32 clipcount = f->fmt.win.clipcount;
1236         int err = 0;
1237         int i;
1238
1239         if (saa7134_no_overlay > 0) {
1240                 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1241                 return -EINVAL;
1242         }
1243         f->fmt.win = dev->win;
1244         f->fmt.win.clips = clips;
1245         if (clips == NULL)
1246                 clipcount = 0;
1247         if (dev->nclips < clipcount)
1248                 clipcount = dev->nclips;
1249         f->fmt.win.clipcount = clipcount;
1250
1251         for (i = 0; !err && i < clipcount; i++) {
1252                 if (copy_to_user(&f->fmt.win.clips[i].c, &dev->clips[i].c,
1253                                         sizeof(struct v4l2_rect)))
1254                         err = -EFAULT;
1255         }
1256
1257         return err;
1258 }
1259
1260 static int saa7134_try_fmt_vid_cap(struct file *file, void *priv,
1261                                                 struct v4l2_format *f)
1262 {
1263         struct saa7134_dev *dev = video_drvdata(file);
1264         struct saa7134_format *fmt;
1265         enum v4l2_field field;
1266         unsigned int maxw, maxh;
1267
1268         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1269         if (NULL == fmt)
1270                 return -EINVAL;
1271
1272         field = f->fmt.pix.field;
1273         maxw  = min(dev->crop_current.width*4,  dev->crop_bounds.width);
1274         maxh  = min(dev->crop_current.height*4, dev->crop_bounds.height);
1275
1276         if (V4L2_FIELD_ANY == field) {
1277                 field = (f->fmt.pix.height > maxh/2)
1278                         ? V4L2_FIELD_INTERLACED
1279                         : V4L2_FIELD_BOTTOM;
1280         }
1281         switch (field) {
1282         case V4L2_FIELD_TOP:
1283         case V4L2_FIELD_BOTTOM:
1284                 maxh = maxh / 2;
1285                 break;
1286         default:
1287                 field = V4L2_FIELD_INTERLACED;
1288                 break;
1289         }
1290
1291         f->fmt.pix.field = field;
1292         if (f->fmt.pix.width  < 48)
1293                 f->fmt.pix.width  = 48;
1294         if (f->fmt.pix.height < 32)
1295                 f->fmt.pix.height = 32;
1296         if (f->fmt.pix.width > maxw)
1297                 f->fmt.pix.width = maxw;
1298         if (f->fmt.pix.height > maxh)
1299                 f->fmt.pix.height = maxh;
1300         f->fmt.pix.width &= ~0x03;
1301         f->fmt.pix.bytesperline =
1302                 (f->fmt.pix.width * fmt->depth) >> 3;
1303         f->fmt.pix.sizeimage =
1304                 f->fmt.pix.height * f->fmt.pix.bytesperline;
1305         f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
1306
1307         return 0;
1308 }
1309
1310 static int saa7134_try_fmt_vid_overlay(struct file *file, void *priv,
1311                                                 struct v4l2_format *f)
1312 {
1313         struct saa7134_dev *dev = video_drvdata(file);
1314
1315         if (saa7134_no_overlay > 0) {
1316                 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1317                 return -EINVAL;
1318         }
1319
1320         if (f->fmt.win.clips == NULL)
1321                 f->fmt.win.clipcount = 0;
1322         return verify_preview(dev, &f->fmt.win, true);
1323 }
1324
1325 static int saa7134_s_fmt_vid_cap(struct file *file, void *priv,
1326                                         struct v4l2_format *f)
1327 {
1328         struct saa7134_dev *dev = video_drvdata(file);
1329         int err;
1330
1331         err = saa7134_try_fmt_vid_cap(file, priv, f);
1332         if (0 != err)
1333                 return err;
1334
1335         dev->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1336         dev->width = f->fmt.pix.width;
1337         dev->height = f->fmt.pix.height;
1338         dev->field = f->fmt.pix.field;
1339         return 0;
1340 }
1341
1342 static int saa7134_s_fmt_vid_overlay(struct file *file, void *priv,
1343                                         struct v4l2_format *f)
1344 {
1345         struct saa7134_dev *dev = video_drvdata(file);
1346         int err;
1347         unsigned long flags;
1348
1349         if (saa7134_no_overlay > 0) {
1350                 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1351                 return -EINVAL;
1352         }
1353         if (f->fmt.win.clips == NULL)
1354                 f->fmt.win.clipcount = 0;
1355         err = verify_preview(dev, &f->fmt.win, true);
1356         if (0 != err)
1357                 return err;
1358
1359         dev->win    = f->fmt.win;
1360         dev->nclips = f->fmt.win.clipcount;
1361
1362         if (copy_from_user(dev->clips, f->fmt.win.clips,
1363                            sizeof(struct v4l2_clip) * dev->nclips))
1364                 return -EFAULT;
1365
1366         if (priv == dev->overlay_owner) {
1367                 spin_lock_irqsave(&dev->slock, flags);
1368                 stop_preview(dev);
1369                 start_preview(dev);
1370                 spin_unlock_irqrestore(&dev->slock, flags);
1371         }
1372
1373         return 0;
1374 }
1375
1376 int saa7134_enum_input(struct file *file, void *priv, struct v4l2_input *i)
1377 {
1378         struct saa7134_dev *dev = video_drvdata(file);
1379         unsigned int n;
1380
1381         n = i->index;
1382         if (n >= SAA7134_INPUT_MAX)
1383                 return -EINVAL;
1384         if (NULL == card_in(dev, i->index).name)
1385                 return -EINVAL;
1386         i->index = n;
1387         i->type  = V4L2_INPUT_TYPE_CAMERA;
1388         strcpy(i->name, card_in(dev, n).name);
1389         if (card_in(dev, n).tv)
1390                 i->type = V4L2_INPUT_TYPE_TUNER;
1391         if (n == dev->ctl_input) {
1392                 int v1 = saa_readb(SAA7134_STATUS_VIDEO1);
1393                 int v2 = saa_readb(SAA7134_STATUS_VIDEO2);
1394
1395                 if (0 != (v1 & 0x40))
1396                         i->status |= V4L2_IN_ST_NO_H_LOCK;
1397                 if (0 != (v2 & 0x40))
1398                         i->status |= V4L2_IN_ST_NO_SIGNAL;
1399                 if (0 != (v2 & 0x0e))
1400                         i->status |= V4L2_IN_ST_MACROVISION;
1401         }
1402         i->std = SAA7134_NORMS;
1403         return 0;
1404 }
1405 EXPORT_SYMBOL_GPL(saa7134_enum_input);
1406
1407 int saa7134_g_input(struct file *file, void *priv, unsigned int *i)
1408 {
1409         struct saa7134_dev *dev = video_drvdata(file);
1410
1411         *i = dev->ctl_input;
1412         return 0;
1413 }
1414 EXPORT_SYMBOL_GPL(saa7134_g_input);
1415
1416 int saa7134_s_input(struct file *file, void *priv, unsigned int i)
1417 {
1418         struct saa7134_dev *dev = video_drvdata(file);
1419
1420         if (i >= SAA7134_INPUT_MAX)
1421                 return -EINVAL;
1422         if (NULL == card_in(dev, i).name)
1423                 return -EINVAL;
1424         video_mux(dev, i);
1425         return 0;
1426 }
1427 EXPORT_SYMBOL_GPL(saa7134_s_input);
1428
1429 int saa7134_querycap(struct file *file, void *priv,
1430                                         struct v4l2_capability *cap)
1431 {
1432         struct saa7134_dev *dev = video_drvdata(file);
1433         struct video_device *vdev = video_devdata(file);
1434         u32 radio_caps, video_caps, vbi_caps;
1435
1436         unsigned int tuner_type = dev->tuner_type;
1437
1438         strcpy(cap->driver, "saa7134");
1439         strlcpy(cap->card, saa7134_boards[dev->board].name,
1440                 sizeof(cap->card));
1441         sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
1442
1443         cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1444         if ((tuner_type != TUNER_ABSENT) && (tuner_type != UNSET))
1445                 cap->device_caps |= V4L2_CAP_TUNER;
1446
1447         radio_caps = V4L2_CAP_RADIO;
1448         if (dev->has_rds)
1449                 radio_caps |= V4L2_CAP_RDS_CAPTURE;
1450
1451         video_caps = V4L2_CAP_VIDEO_CAPTURE;
1452         if (saa7134_no_overlay <= 0 && !is_empress(file))
1453                 video_caps |= V4L2_CAP_VIDEO_OVERLAY;
1454
1455         vbi_caps = V4L2_CAP_VBI_CAPTURE;
1456
1457         switch (vdev->vfl_type) {
1458         case VFL_TYPE_RADIO:
1459                 cap->device_caps |= radio_caps;
1460                 break;
1461         case VFL_TYPE_GRABBER:
1462                 cap->device_caps |= video_caps;
1463                 break;
1464         case VFL_TYPE_VBI:
1465                 cap->device_caps |= vbi_caps;
1466                 break;
1467         }
1468         cap->capabilities = radio_caps | video_caps | vbi_caps |
1469                 cap->device_caps | V4L2_CAP_DEVICE_CAPS;
1470         if (vdev->vfl_type == VFL_TYPE_RADIO) {
1471                 cap->device_caps &= ~V4L2_CAP_STREAMING;
1472                 if (!dev->has_rds)
1473                         cap->device_caps &= ~V4L2_CAP_READWRITE;
1474         }
1475
1476         return 0;
1477 }
1478 EXPORT_SYMBOL_GPL(saa7134_querycap);
1479
1480 int saa7134_s_std(struct file *file, void *priv, v4l2_std_id id)
1481 {
1482         struct saa7134_dev *dev = video_drvdata(file);
1483         struct v4l2_fh *fh = priv;
1484         unsigned long flags;
1485         unsigned int i;
1486         v4l2_std_id fixup;
1487
1488         if (is_empress(file) && dev->overlay_owner) {
1489                 /* Don't change the std from the mpeg device
1490                    if overlay is active. */
1491                 return -EBUSY;
1492         }
1493
1494         for (i = 0; i < TVNORMS; i++)
1495                 if (id == tvnorms[i].id)
1496                         break;
1497
1498         if (i == TVNORMS)
1499                 for (i = 0; i < TVNORMS; i++)
1500                         if (id & tvnorms[i].id)
1501                                 break;
1502         if (i == TVNORMS)
1503                 return -EINVAL;
1504
1505         if ((id & V4L2_STD_SECAM) && (secam[0] != '-')) {
1506                 if (secam[0] == 'L' || secam[0] == 'l') {
1507                         if (secam[1] == 'C' || secam[1] == 'c')
1508                                 fixup = V4L2_STD_SECAM_LC;
1509                         else
1510                                 fixup = V4L2_STD_SECAM_L;
1511                 } else {
1512                         if (secam[0] == 'D' || secam[0] == 'd')
1513                                 fixup = V4L2_STD_SECAM_DK;
1514                         else
1515                                 fixup = V4L2_STD_SECAM;
1516                 }
1517                 for (i = 0; i < TVNORMS; i++) {
1518                         if (fixup == tvnorms[i].id)
1519                                 break;
1520                 }
1521                 if (i == TVNORMS)
1522                         return -EINVAL;
1523         }
1524
1525         id = tvnorms[i].id;
1526
1527         if (!is_empress(file) && fh == dev->overlay_owner) {
1528                 spin_lock_irqsave(&dev->slock, flags);
1529                 stop_preview(dev);
1530                 spin_unlock_irqrestore(&dev->slock, flags);
1531
1532                 set_tvnorm(dev, &tvnorms[i]);
1533
1534                 spin_lock_irqsave(&dev->slock, flags);
1535                 start_preview(dev);
1536                 spin_unlock_irqrestore(&dev->slock, flags);
1537         } else
1538                 set_tvnorm(dev, &tvnorms[i]);
1539
1540         saa7134_tvaudio_do_scan(dev);
1541         return 0;
1542 }
1543 EXPORT_SYMBOL_GPL(saa7134_s_std);
1544
1545 int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id)
1546 {
1547         struct saa7134_dev *dev = video_drvdata(file);
1548
1549         *id = dev->tvnorm->id;
1550         return 0;
1551 }
1552 EXPORT_SYMBOL_GPL(saa7134_g_std);
1553
1554 static v4l2_std_id saa7134_read_std(struct saa7134_dev *dev)
1555 {
1556         static v4l2_std_id stds[] = {
1557                 V4L2_STD_UNKNOWN,
1558                 V4L2_STD_NTSC,
1559                 V4L2_STD_PAL,
1560                 V4L2_STD_SECAM };
1561
1562         v4l2_std_id result = 0;
1563
1564         u8 st1 = saa_readb(SAA7134_STATUS_VIDEO1);
1565         u8 st2 = saa_readb(SAA7134_STATUS_VIDEO2);
1566
1567         if (!(st2 & 0x1)) /* RDCAP == 0 */
1568                 result = V4L2_STD_UNKNOWN;
1569         else
1570                 result = stds[st1 & 0x03];
1571
1572         return result;
1573 }
1574
1575 int saa7134_querystd(struct file *file, void *priv, v4l2_std_id *std)
1576 {
1577         struct saa7134_dev *dev = video_drvdata(file);
1578         *std &= saa7134_read_std(dev);
1579         return 0;
1580 }
1581 EXPORT_SYMBOL_GPL(saa7134_querystd);
1582
1583 static int saa7134_cropcap(struct file *file, void *priv,
1584                                         struct v4l2_cropcap *cap)
1585 {
1586         struct saa7134_dev *dev = video_drvdata(file);
1587
1588         if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1589             cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1590                 return -EINVAL;
1591         cap->bounds  = dev->crop_bounds;
1592         cap->defrect = dev->crop_defrect;
1593         cap->pixelaspect.numerator   = 1;
1594         cap->pixelaspect.denominator = 1;
1595         if (dev->tvnorm->id & V4L2_STD_525_60) {
1596                 cap->pixelaspect.numerator   = 11;
1597                 cap->pixelaspect.denominator = 10;
1598         }
1599         if (dev->tvnorm->id & V4L2_STD_625_50) {
1600                 cap->pixelaspect.numerator   = 54;
1601                 cap->pixelaspect.denominator = 59;
1602         }
1603         return 0;
1604 }
1605
1606 static int saa7134_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
1607 {
1608         struct saa7134_dev *dev = video_drvdata(file);
1609
1610         if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1611             crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1612                 return -EINVAL;
1613         crop->c = dev->crop_current;
1614         return 0;
1615 }
1616
1617 static int saa7134_s_crop(struct file *file, void *f, const struct v4l2_crop *crop)
1618 {
1619         struct saa7134_dev *dev = video_drvdata(file);
1620         struct v4l2_rect *b = &dev->crop_bounds;
1621         struct v4l2_rect *c = &dev->crop_current;
1622
1623         if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1624             crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1625                 return -EINVAL;
1626
1627         if (dev->overlay_owner)
1628                 return -EBUSY;
1629         if (vb2_is_streaming(&dev->video_vbq))
1630                 return -EBUSY;
1631
1632         *c = crop->c;
1633         if (c->top < b->top)
1634                 c->top = b->top;
1635         if (c->top > b->top + b->height)
1636                 c->top = b->top + b->height;
1637         if (c->height > b->top - c->top + b->height)
1638                 c->height = b->top - c->top + b->height;
1639
1640         if (c->left < b->left)
1641                 c->left = b->left;
1642         if (c->left > b->left + b->width)
1643                 c->left = b->left + b->width;
1644         if (c->width > b->left - c->left + b->width)
1645                 c->width = b->left - c->left + b->width;
1646         return 0;
1647 }
1648
1649 int saa7134_g_tuner(struct file *file, void *priv,
1650                                         struct v4l2_tuner *t)
1651 {
1652         struct saa7134_dev *dev = video_drvdata(file);
1653         int n;
1654
1655         if (0 != t->index)
1656                 return -EINVAL;
1657         memset(t, 0, sizeof(*t));
1658         for (n = 0; n < SAA7134_INPUT_MAX; n++) {
1659                 if (card_in(dev, n).tv)
1660                         break;
1661         }
1662         if (n == SAA7134_INPUT_MAX)
1663                 return -EINVAL;
1664         if (NULL != card_in(dev, n).name) {
1665                 strcpy(t->name, "Television");
1666                 t->type = V4L2_TUNER_ANALOG_TV;
1667                 saa_call_all(dev, tuner, g_tuner, t);
1668                 t->capability = V4L2_TUNER_CAP_NORM |
1669                         V4L2_TUNER_CAP_STEREO |
1670                         V4L2_TUNER_CAP_LANG1 |
1671                         V4L2_TUNER_CAP_LANG2;
1672                 t->rxsubchans = saa7134_tvaudio_getstereo(dev);
1673                 t->audmode = saa7134_tvaudio_rx2mode(t->rxsubchans);
1674         }
1675         if (0 != (saa_readb(SAA7134_STATUS_VIDEO1) & 0x03))
1676                 t->signal = 0xffff;
1677         return 0;
1678 }
1679 EXPORT_SYMBOL_GPL(saa7134_g_tuner);
1680
1681 int saa7134_s_tuner(struct file *file, void *priv,
1682                                         const struct v4l2_tuner *t)
1683 {
1684         struct saa7134_dev *dev = video_drvdata(file);
1685         int rx, mode;
1686
1687         if (0 != t->index)
1688                 return -EINVAL;
1689
1690         mode = dev->thread.mode;
1691         if (UNSET == mode) {
1692                 rx   = saa7134_tvaudio_getstereo(dev);
1693                 mode = saa7134_tvaudio_rx2mode(rx);
1694         }
1695         if (mode != t->audmode)
1696                 dev->thread.mode = t->audmode;
1697
1698         return 0;
1699 }
1700 EXPORT_SYMBOL_GPL(saa7134_s_tuner);
1701
1702 int saa7134_g_frequency(struct file *file, void *priv,
1703                                         struct v4l2_frequency *f)
1704 {
1705         struct saa7134_dev *dev = video_drvdata(file);
1706
1707         if (0 != f->tuner)
1708                 return -EINVAL;
1709
1710         saa_call_all(dev, tuner, g_frequency, f);
1711
1712         return 0;
1713 }
1714 EXPORT_SYMBOL_GPL(saa7134_g_frequency);
1715
1716 int saa7134_s_frequency(struct file *file, void *priv,
1717                                         const struct v4l2_frequency *f)
1718 {
1719         struct saa7134_dev *dev = video_drvdata(file);
1720
1721         if (0 != f->tuner)
1722                 return -EINVAL;
1723
1724         saa_call_all(dev, tuner, s_frequency, f);
1725
1726         saa7134_tvaudio_do_scan(dev);
1727         return 0;
1728 }
1729 EXPORT_SYMBOL_GPL(saa7134_s_frequency);
1730
1731 static int saa7134_enum_fmt_vid_cap(struct file *file, void  *priv,
1732                                         struct v4l2_fmtdesc *f)
1733 {
1734         if (f->index >= FORMATS)
1735                 return -EINVAL;
1736
1737         strlcpy(f->description, formats[f->index].name,
1738                 sizeof(f->description));
1739
1740         f->pixelformat = formats[f->index].fourcc;
1741
1742         return 0;
1743 }
1744
1745 static int saa7134_enum_fmt_vid_overlay(struct file *file, void  *priv,
1746                                         struct v4l2_fmtdesc *f)
1747 {
1748         if (saa7134_no_overlay > 0) {
1749                 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1750                 return -EINVAL;
1751         }
1752
1753         if ((f->index >= FORMATS) || formats[f->index].planar)
1754                 return -EINVAL;
1755
1756         strlcpy(f->description, formats[f->index].name,
1757                 sizeof(f->description));
1758
1759         f->pixelformat = formats[f->index].fourcc;
1760
1761         return 0;
1762 }
1763
1764 static int saa7134_g_fbuf(struct file *file, void *f,
1765                                 struct v4l2_framebuffer *fb)
1766 {
1767         struct saa7134_dev *dev = video_drvdata(file);
1768
1769         *fb = dev->ovbuf;
1770         fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
1771
1772         return 0;
1773 }
1774
1775 static int saa7134_s_fbuf(struct file *file, void *f,
1776                                         const struct v4l2_framebuffer *fb)
1777 {
1778         struct saa7134_dev *dev = video_drvdata(file);
1779         struct saa7134_format *fmt;
1780
1781         if (!capable(CAP_SYS_ADMIN) &&
1782            !capable(CAP_SYS_RAWIO))
1783                 return -EPERM;
1784
1785         /* check args */
1786         fmt = format_by_fourcc(fb->fmt.pixelformat);
1787         if (NULL == fmt)
1788                 return -EINVAL;
1789
1790         /* ok, accept it */
1791         dev->ovbuf = *fb;
1792         dev->ovfmt = fmt;
1793         if (0 == dev->ovbuf.fmt.bytesperline)
1794                 dev->ovbuf.fmt.bytesperline =
1795                         dev->ovbuf.fmt.width*fmt->depth/8;
1796         return 0;
1797 }
1798
1799 static int saa7134_overlay(struct file *file, void *priv, unsigned int on)
1800 {
1801         struct saa7134_dev *dev = video_drvdata(file);
1802         unsigned long flags;
1803
1804         if (on) {
1805                 if (saa7134_no_overlay > 0) {
1806                         video_dbg("no_overlay\n");
1807                         return -EINVAL;
1808                 }
1809
1810                 if (dev->overlay_owner && priv != dev->overlay_owner)
1811                         return -EBUSY;
1812                 dev->overlay_owner = priv;
1813                 spin_lock_irqsave(&dev->slock, flags);
1814                 start_preview(dev);
1815                 spin_unlock_irqrestore(&dev->slock, flags);
1816         }
1817         if (!on) {
1818                 if (priv != dev->overlay_owner)
1819                         return -EINVAL;
1820                 spin_lock_irqsave(&dev->slock, flags);
1821                 stop_preview(dev);
1822                 spin_unlock_irqrestore(&dev->slock, flags);
1823                 dev->overlay_owner = NULL;
1824         }
1825         return 0;
1826 }
1827
1828 #ifdef CONFIG_VIDEO_ADV_DEBUG
1829 static int vidioc_g_register (struct file *file, void *priv,
1830                               struct v4l2_dbg_register *reg)
1831 {
1832         struct saa7134_dev *dev = video_drvdata(file);
1833
1834         reg->val = saa_readb(reg->reg & 0xffffff);
1835         reg->size = 1;
1836         return 0;
1837 }
1838
1839 static int vidioc_s_register (struct file *file, void *priv,
1840                                 const struct v4l2_dbg_register *reg)
1841 {
1842         struct saa7134_dev *dev = video_drvdata(file);
1843
1844         saa_writeb(reg->reg & 0xffffff, reg->val);
1845         return 0;
1846 }
1847 #endif
1848
1849 static int radio_g_tuner(struct file *file, void *priv,
1850                                         struct v4l2_tuner *t)
1851 {
1852         struct saa7134_dev *dev = video_drvdata(file);
1853
1854         if (0 != t->index)
1855                 return -EINVAL;
1856
1857         strcpy(t->name, "Radio");
1858
1859         saa_call_all(dev, tuner, g_tuner, t);
1860         t->audmode &= V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO;
1861         if (dev->input->amux == TV) {
1862                 t->signal = 0xf800 - ((saa_readb(0x581) & 0x1f) << 11);
1863                 t->rxsubchans = (saa_readb(0x529) & 0x08) ?
1864                                 V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
1865         }
1866         return 0;
1867 }
1868 static int radio_s_tuner(struct file *file, void *priv,
1869                                         const struct v4l2_tuner *t)
1870 {
1871         struct saa7134_dev *dev = video_drvdata(file);
1872
1873         if (0 != t->index)
1874                 return -EINVAL;
1875
1876         saa_call_all(dev, tuner, s_tuner, t);
1877         return 0;
1878 }
1879
1880 static const struct v4l2_file_operations video_fops =
1881 {
1882         .owner    = THIS_MODULE,
1883         .open     = video_open,
1884         .release  = video_release,
1885         .read     = vb2_fop_read,
1886         .poll     = vb2_fop_poll,
1887         .mmap     = vb2_fop_mmap,
1888         .unlocked_ioctl   = video_ioctl2,
1889 };
1890
1891 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1892         .vidioc_querycap                = saa7134_querycap,
1893         .vidioc_enum_fmt_vid_cap        = saa7134_enum_fmt_vid_cap,
1894         .vidioc_g_fmt_vid_cap           = saa7134_g_fmt_vid_cap,
1895         .vidioc_try_fmt_vid_cap         = saa7134_try_fmt_vid_cap,
1896         .vidioc_s_fmt_vid_cap           = saa7134_s_fmt_vid_cap,
1897         .vidioc_enum_fmt_vid_overlay    = saa7134_enum_fmt_vid_overlay,
1898         .vidioc_g_fmt_vid_overlay       = saa7134_g_fmt_vid_overlay,
1899         .vidioc_try_fmt_vid_overlay     = saa7134_try_fmt_vid_overlay,
1900         .vidioc_s_fmt_vid_overlay       = saa7134_s_fmt_vid_overlay,
1901         .vidioc_g_fmt_vbi_cap           = saa7134_try_get_set_fmt_vbi_cap,
1902         .vidioc_try_fmt_vbi_cap         = saa7134_try_get_set_fmt_vbi_cap,
1903         .vidioc_s_fmt_vbi_cap           = saa7134_try_get_set_fmt_vbi_cap,
1904         .vidioc_cropcap                 = saa7134_cropcap,
1905         .vidioc_reqbufs                 = vb2_ioctl_reqbufs,
1906         .vidioc_querybuf                = vb2_ioctl_querybuf,
1907         .vidioc_qbuf                    = vb2_ioctl_qbuf,
1908         .vidioc_dqbuf                   = vb2_ioctl_dqbuf,
1909         .vidioc_s_std                   = saa7134_s_std,
1910         .vidioc_g_std                   = saa7134_g_std,
1911         .vidioc_querystd                = saa7134_querystd,
1912         .vidioc_enum_input              = saa7134_enum_input,
1913         .vidioc_g_input                 = saa7134_g_input,
1914         .vidioc_s_input                 = saa7134_s_input,
1915         .vidioc_streamon                = vb2_ioctl_streamon,
1916         .vidioc_streamoff               = vb2_ioctl_streamoff,
1917         .vidioc_g_tuner                 = saa7134_g_tuner,
1918         .vidioc_s_tuner                 = saa7134_s_tuner,
1919         .vidioc_g_crop                  = saa7134_g_crop,
1920         .vidioc_s_crop                  = saa7134_s_crop,
1921         .vidioc_g_fbuf                  = saa7134_g_fbuf,
1922         .vidioc_s_fbuf                  = saa7134_s_fbuf,
1923         .vidioc_overlay                 = saa7134_overlay,
1924         .vidioc_g_frequency             = saa7134_g_frequency,
1925         .vidioc_s_frequency             = saa7134_s_frequency,
1926 #ifdef CONFIG_VIDEO_ADV_DEBUG
1927         .vidioc_g_register              = vidioc_g_register,
1928         .vidioc_s_register              = vidioc_s_register,
1929 #endif
1930         .vidioc_log_status              = v4l2_ctrl_log_status,
1931         .vidioc_subscribe_event         = v4l2_ctrl_subscribe_event,
1932         .vidioc_unsubscribe_event       = v4l2_event_unsubscribe,
1933 };
1934
1935 static const struct v4l2_file_operations radio_fops = {
1936         .owner    = THIS_MODULE,
1937         .open     = video_open,
1938         .read     = radio_read,
1939         .release  = video_release,
1940         .unlocked_ioctl = video_ioctl2,
1941         .poll     = radio_poll,
1942 };
1943
1944 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1945         .vidioc_querycap        = saa7134_querycap,
1946         .vidioc_g_tuner         = radio_g_tuner,
1947         .vidioc_s_tuner         = radio_s_tuner,
1948         .vidioc_g_frequency     = saa7134_g_frequency,
1949         .vidioc_s_frequency     = saa7134_s_frequency,
1950         .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1951         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1952 };
1953
1954 /* ----------------------------------------------------------- */
1955 /* exported stuff                                              */
1956
1957 struct video_device saa7134_video_template = {
1958         .name                           = "saa7134-video",
1959         .fops                           = &video_fops,
1960         .ioctl_ops                      = &video_ioctl_ops,
1961         .tvnorms                        = SAA7134_NORMS,
1962 };
1963
1964 struct video_device saa7134_radio_template = {
1965         .name                   = "saa7134-radio",
1966         .fops                   = &radio_fops,
1967         .ioctl_ops              = &radio_ioctl_ops,
1968 };
1969
1970 static const struct v4l2_ctrl_ops saa7134_ctrl_ops = {
1971         .s_ctrl = saa7134_s_ctrl,
1972 };
1973
1974 static const struct v4l2_ctrl_config saa7134_ctrl_invert = {
1975         .ops = &saa7134_ctrl_ops,
1976         .id = V4L2_CID_PRIVATE_INVERT,
1977         .name = "Invert",
1978         .type = V4L2_CTRL_TYPE_BOOLEAN,
1979         .min = 0,
1980         .max = 1,
1981         .step = 1,
1982 };
1983
1984 static const struct v4l2_ctrl_config saa7134_ctrl_y_odd = {
1985         .ops = &saa7134_ctrl_ops,
1986         .id = V4L2_CID_PRIVATE_Y_ODD,
1987         .name = "Y Offset Odd Field",
1988         .type = V4L2_CTRL_TYPE_INTEGER,
1989         .min = 0,
1990         .max = 128,
1991         .step = 1,
1992 };
1993
1994 static const struct v4l2_ctrl_config saa7134_ctrl_y_even = {
1995         .ops = &saa7134_ctrl_ops,
1996         .id = V4L2_CID_PRIVATE_Y_EVEN,
1997         .name = "Y Offset Even Field",
1998         .type = V4L2_CTRL_TYPE_INTEGER,
1999         .min = 0,
2000         .max = 128,
2001         .step = 1,
2002 };
2003
2004 static const struct v4l2_ctrl_config saa7134_ctrl_automute = {
2005         .ops = &saa7134_ctrl_ops,
2006         .id = V4L2_CID_PRIVATE_AUTOMUTE,
2007         .name = "Automute",
2008         .type = V4L2_CTRL_TYPE_BOOLEAN,
2009         .min = 0,
2010         .max = 1,
2011         .step = 1,
2012         .def = 1,
2013 };
2014
2015 int saa7134_video_init1(struct saa7134_dev *dev)
2016 {
2017         struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler;
2018         struct vb2_queue *q;
2019         int ret;
2020
2021         /* sanitycheck insmod options */
2022         if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
2023                 gbuffers = 2;
2024         if (gbufsize > gbufsize_max)
2025                 gbufsize = gbufsize_max;
2026         gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
2027
2028         v4l2_ctrl_handler_init(hdl, 11);
2029         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2030                         V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
2031         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2032                         V4L2_CID_CONTRAST, 0, 127, 1, 68);
2033         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2034                         V4L2_CID_SATURATION, 0, 127, 1, 64);
2035         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2036                         V4L2_CID_HUE, -128, 127, 1, 0);
2037         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2038                         V4L2_CID_HFLIP, 0, 1, 1, 0);
2039         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2040                         V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
2041         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2042                         V4L2_CID_AUDIO_VOLUME, -15, 15, 1, 0);
2043         v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_invert, NULL);
2044         v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_odd, NULL);
2045         v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_even, NULL);
2046         v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_automute, NULL);
2047         if (hdl->error)
2048                 return hdl->error;
2049         if (card_has_radio(dev)) {
2050                 hdl = &dev->radio_ctrl_handler;
2051                 v4l2_ctrl_handler_init(hdl, 2);
2052                 v4l2_ctrl_add_handler(hdl, &dev->ctrl_handler,
2053                                 v4l2_ctrl_radio_filter);
2054                 if (hdl->error)
2055                         return hdl->error;
2056         }
2057         dev->ctl_mute       = 1;
2058
2059         if (dev->tda9887_conf && saa7134_ctrl_automute.def)
2060                 dev->tda9887_conf |= TDA9887_AUTOMUTE;
2061         dev->automute       = 0;
2062
2063         INIT_LIST_HEAD(&dev->video_q.queue);
2064         init_timer(&dev->video_q.timeout);
2065         dev->video_q.timeout.function = saa7134_buffer_timeout;
2066         dev->video_q.timeout.data     = (unsigned long)(&dev->video_q);
2067         dev->video_q.dev              = dev;
2068         dev->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
2069         dev->width    = 720;
2070         dev->height   = 576;
2071         dev->field = V4L2_FIELD_INTERLACED;
2072         dev->win.w.width = dev->width;
2073         dev->win.w.height = dev->height;
2074         dev->win.field = V4L2_FIELD_INTERLACED;
2075         dev->ovbuf.fmt.width = dev->width;
2076         dev->ovbuf.fmt.height = dev->height;
2077         dev->ovbuf.fmt.pixelformat = dev->fmt->fourcc;
2078         dev->ovbuf.fmt.colorspace = V4L2_COLORSPACE_SMPTE170M;
2079
2080         if (saa7134_boards[dev->board].video_out)
2081                 saa7134_videoport_init(dev);
2082
2083         q = &dev->video_vbq;
2084         q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2085         /*
2086          * Do not add VB2_USERPTR unless explicitly requested: the saa7134 DMA
2087          * engine cannot handle transfers that do not start at the beginning
2088          * of a page. A user-provided pointer can start anywhere in a page, so
2089          * USERPTR support is a no-go unless the application knows about these
2090          * limitations and has special support for this.
2091          */
2092         q->io_modes = VB2_MMAP | VB2_READ;
2093         if (saa7134_userptr)
2094                 q->io_modes |= VB2_USERPTR;
2095         q->drv_priv = &dev->video_q;
2096         q->ops = &vb2_qops;
2097         q->gfp_flags = GFP_DMA32;
2098         q->mem_ops = &vb2_dma_sg_memops;
2099         q->buf_struct_size = sizeof(struct saa7134_buf);
2100         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2101         q->lock = &dev->lock;
2102         ret = vb2_queue_init(q);
2103         if (ret)
2104                 return ret;
2105         saa7134_pgtable_alloc(dev->pci, &dev->video_q.pt);
2106
2107         q = &dev->vbi_vbq;
2108         q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
2109         /* Don't add VB2_USERPTR, see comment above */
2110         q->io_modes = VB2_MMAP | VB2_READ;
2111         if (saa7134_userptr)
2112                 q->io_modes |= VB2_USERPTR;
2113         q->drv_priv = &dev->vbi_q;
2114         q->ops = &saa7134_vbi_qops;
2115         q->gfp_flags = GFP_DMA32;
2116         q->mem_ops = &vb2_dma_sg_memops;
2117         q->buf_struct_size = sizeof(struct saa7134_buf);
2118         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2119         q->lock = &dev->lock;
2120         ret = vb2_queue_init(q);
2121         if (ret)
2122                 return ret;
2123         saa7134_pgtable_alloc(dev->pci, &dev->vbi_q.pt);
2124
2125         return 0;
2126 }
2127
2128 void saa7134_video_fini(struct saa7134_dev *dev)
2129 {
2130         /* free stuff */
2131         vb2_queue_release(&dev->video_vbq);
2132         saa7134_pgtable_free(dev->pci, &dev->video_q.pt);
2133         vb2_queue_release(&dev->vbi_vbq);
2134         saa7134_pgtable_free(dev->pci, &dev->vbi_q.pt);
2135         v4l2_ctrl_handler_free(&dev->ctrl_handler);
2136         if (card_has_radio(dev))
2137                 v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
2138 }
2139
2140 int saa7134_videoport_init(struct saa7134_dev *dev)
2141 {
2142         /* enable video output */
2143         int vo = saa7134_boards[dev->board].video_out;
2144         int video_reg;
2145         unsigned int vid_port_opts = saa7134_boards[dev->board].vid_port_opts;
2146
2147         /* Configure videoport */
2148         saa_writeb(SAA7134_VIDEO_PORT_CTRL0, video_out[vo][0]);
2149         video_reg = video_out[vo][1];
2150         if (vid_port_opts & SET_T_CODE_POLARITY_NON_INVERTED)
2151                 video_reg &= ~VP_T_CODE_P_INVERTED;
2152         saa_writeb(SAA7134_VIDEO_PORT_CTRL1, video_reg);
2153         saa_writeb(SAA7134_VIDEO_PORT_CTRL2, video_out[vo][2]);
2154         saa_writeb(SAA7134_VIDEO_PORT_CTRL4, video_out[vo][4]);
2155         video_reg = video_out[vo][5];
2156         if (vid_port_opts & SET_CLOCK_NOT_DELAYED)
2157                 video_reg &= ~VP_CLK_CTRL2_DELAYED;
2158         if (vid_port_opts & SET_CLOCK_INVERTED)
2159                 video_reg |= VP_CLK_CTRL1_INVERTED;
2160         saa_writeb(SAA7134_VIDEO_PORT_CTRL5, video_reg);
2161         video_reg = video_out[vo][6];
2162         if (vid_port_opts & SET_VSYNC_OFF) {
2163                 video_reg &= ~VP_VS_TYPE_MASK;
2164                 video_reg |= VP_VS_TYPE_OFF;
2165         }
2166         saa_writeb(SAA7134_VIDEO_PORT_CTRL6, video_reg);
2167         saa_writeb(SAA7134_VIDEO_PORT_CTRL7, video_out[vo][7]);
2168         saa_writeb(SAA7134_VIDEO_PORT_CTRL8, video_out[vo][8]);
2169
2170         /* Start videoport */
2171         saa_writeb(SAA7134_VIDEO_PORT_CTRL3, video_out[vo][3]);
2172
2173         return 0;
2174 }
2175
2176 int saa7134_video_init2(struct saa7134_dev *dev)
2177 {
2178         /* init video hw */
2179         set_tvnorm(dev,&tvnorms[0]);
2180         video_mux(dev,0);
2181         v4l2_ctrl_handler_setup(&dev->ctrl_handler);
2182         saa7134_tvaudio_setmute(dev);
2183         saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
2184         return 0;
2185 }
2186
2187 void saa7134_irq_video_signalchange(struct saa7134_dev *dev)
2188 {
2189         static const char *st[] = {
2190                 "(no signal)", "NTSC", "PAL", "SECAM" };
2191         u32 st1,st2;
2192
2193         st1 = saa_readb(SAA7134_STATUS_VIDEO1);
2194         st2 = saa_readb(SAA7134_STATUS_VIDEO2);
2195         video_dbg("DCSDT: pll: %s, sync: %s, norm: %s\n",
2196                 (st1 & 0x40) ? "not locked" : "locked",
2197                 (st2 & 0x40) ? "no"         : "yes",
2198                 st[st1 & 0x03]);
2199         dev->nosignal = (st1 & 0x40) || (st2 & 0x40)  || !(st2 & 0x1);
2200
2201         if (dev->nosignal) {
2202                 /* no video signal -> mute audio */
2203                 if (dev->ctl_automute)
2204                         dev->automute = 1;
2205                 saa7134_tvaudio_setmute(dev);
2206         } else {
2207                 /* wake up tvaudio audio carrier scan thread */
2208                 saa7134_tvaudio_do_scan(dev);
2209         }
2210
2211         if ((st2 & 0x80) && !noninterlaced && !dev->nosignal)
2212                 saa_clearb(SAA7134_SYNC_CTRL, 0x20);
2213         else
2214                 saa_setb(SAA7134_SYNC_CTRL, 0x20);
2215
2216         if (dev->mops && dev->mops->signal_change)
2217                 dev->mops->signal_change(dev);
2218 }
2219
2220
2221 void saa7134_irq_video_done(struct saa7134_dev *dev, unsigned long status)
2222 {
2223         enum v4l2_field field;
2224
2225         spin_lock(&dev->slock);
2226         if (dev->video_q.curr) {
2227                 field = dev->field;
2228                 if (V4L2_FIELD_HAS_BOTH(field)) {
2229                         /* make sure we have seen both fields */
2230                         if ((status & 0x10) == 0x00) {
2231                                 dev->video_q.curr->top_seen = 1;
2232                                 goto done;
2233                         }
2234                         if (!dev->video_q.curr->top_seen)
2235                                 goto done;
2236                 } else if (field == V4L2_FIELD_TOP) {
2237                         if ((status & 0x10) != 0x10)
2238                                 goto done;
2239                 } else if (field == V4L2_FIELD_BOTTOM) {
2240                         if ((status & 0x10) != 0x00)
2241                                 goto done;
2242                 }
2243                 saa7134_buffer_finish(dev, &dev->video_q, VB2_BUF_STATE_DONE);
2244         }
2245         saa7134_buffer_next(dev, &dev->video_q);
2246
2247  done:
2248         spin_unlock(&dev->slock);
2249 }