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

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *
   4  * device driver for philips saa7134 based TV cards
   5  * video4linux video interface
   6  *
   7  * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   8  */
   9
  10 #include "saa7134.h"
  11 #include "saa7134-reg.h"
  12
  13 #include <linux/init.h>
  14 #include <linux/list.h>
  15 #include <linux/module.h>
  16 #include <linux/kernel.h>
  17 #include <linux/slab.h>
  18 #include <linux/sort.h>
  19
  20 #include <media/v4l2-common.h>
  21 #include <media/v4l2-event.h>
  22 #include <media/i2c/saa6588.h>
  23
  24 /* ------------------------------------------------------------------ */
  25
  26 unsigned int video_debug;
  27 static unsigned int gbuffers      = 8;
  28 static unsigned int noninterlaced; /* 0 */
  29 static unsigned int gbufsize      = 720*576*4;
  30 static unsigned int gbufsize_max  = 720*576*4;
  31 static char secam[] = "--";
  32 module_param(video_debug, int, 0644);
  33 MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
  34 module_param(gbuffers, int, 0444);
  35 MODULE_PARM_DESC(gbuffers,"number of capture buffers, range 2-32");
  36 module_param(noninterlaced, int, 0644);
  37 MODULE_PARM_DESC(noninterlaced,"capture non interlaced video");
  38 module_param_string(secam, secam, sizeof(secam), 0644);
  39 MODULE_PARM_DESC(secam, "force SECAM variant, either DK,L or Lc");
  40
  41
  42 #define video_dbg(fmt, arg...) do { \
  43         if (video_debug & 0x04) \
  44                 printk(KERN_DEBUG pr_fmt("video: " fmt), ## arg); \
  45         } while (0)
  46
  47 /* ------------------------------------------------------------------ */
  48 /* Defines for Video Output Port Register at address 0x191            */
  49
  50 /* Bit 0: VIP code T bit polarity */
  51
  52 #define VP_T_CODE_P_NON_INVERTED        0x00
  53 #define VP_T_CODE_P_INVERTED            0x01
  54
  55 /* ------------------------------------------------------------------ */
  56 /* Defines for Video Output Port Register at address 0x195            */
  57
  58 /* Bit 2: Video output clock delay control */
  59
  60 #define VP_CLK_CTRL2_NOT_DELAYED        0x00
  61 #define VP_CLK_CTRL2_DELAYED            0x04
  62
  63 /* Bit 1: Video output clock invert control */
  64
  65 #define VP_CLK_CTRL1_NON_INVERTED       0x00
  66 #define VP_CLK_CTRL1_INVERTED           0x02
  67
  68 /* ------------------------------------------------------------------ */
  69 /* Defines for Video Output Port Register at address 0x196            */
  70
  71 /* Bits 2 to 0: VSYNC pin video vertical sync type */
  72
  73 #define VP_VS_TYPE_MASK                 0x07
  74
  75 #define VP_VS_TYPE_OFF                  0x00
  76 #define VP_VS_TYPE_V123                 0x01
  77 #define VP_VS_TYPE_V_ITU                0x02
  78 #define VP_VS_TYPE_VGATE_L              0x03
  79 #define VP_VS_TYPE_RESERVED1            0x04
  80 #define VP_VS_TYPE_RESERVED2            0x05
  81 #define VP_VS_TYPE_F_ITU                0x06
  82 #define VP_VS_TYPE_SC_FID               0x07
  83
  84 /* ------------------------------------------------------------------ */
  85 /* data structs for video                                             */
  86
  87 static int video_out[][9] = {
  88         [CCIR656] = { 0x00, 0xb1, 0x00, 0xa1, 0x00, 0x04, 0x06, 0x00, 0x00 },
  89 };
  90
  91 static struct saa7134_format formats[] = {
  92         {
  93                 .fourcc   = V4L2_PIX_FMT_GREY,
  94                 .depth    = 8,
  95                 .pm       = 0x06,
  96         },{
  97                 .fourcc   = V4L2_PIX_FMT_RGB555,
  98                 .depth    = 16,
  99                 .pm       = 0x13 | 0x80,
 100         },{
 101                 .fourcc   = V4L2_PIX_FMT_RGB555X,
 102                 .depth    = 16,
 103                 .pm       = 0x13 | 0x80,
 104                 .bswap    = 1,
 105         },{
 106                 .fourcc   = V4L2_PIX_FMT_RGB565,
 107                 .depth    = 16,
 108                 .pm       = 0x10 | 0x80,
 109         },{
 110                 .fourcc   = V4L2_PIX_FMT_RGB565X,
 111                 .depth    = 16,
 112                 .pm       = 0x10 | 0x80,
 113                 .bswap    = 1,
 114         },{
 115                 .fourcc   = V4L2_PIX_FMT_BGR24,
 116                 .depth    = 24,
 117                 .pm       = 0x11,
 118         },{
 119                 .fourcc   = V4L2_PIX_FMT_RGB24,
 120                 .depth    = 24,
 121                 .pm       = 0x11,
 122                 .bswap    = 1,
 123         },{
 124                 .fourcc   = V4L2_PIX_FMT_BGR32,
 125                 .depth    = 32,
 126                 .pm       = 0x12,
 127         },{
 128                 .fourcc   = V4L2_PIX_FMT_RGB32,
 129                 .depth    = 32,
 130                 .pm       = 0x12,
 131                 .bswap    = 1,
 132                 .wswap    = 1,
 133         },{
 134                 .fourcc   = V4L2_PIX_FMT_YUYV,
 135                 .depth    = 16,
 136                 .pm       = 0x00,
 137                 .bswap    = 1,
 138                 .yuv      = 1,
 139         },{
 140                 .fourcc   = V4L2_PIX_FMT_UYVY,
 141                 .depth    = 16,
 142                 .pm       = 0x00,
 143                 .yuv      = 1,
 144         },{
 145                 .fourcc   = V4L2_PIX_FMT_YUV422P,
 146                 .depth    = 16,
 147                 .pm       = 0x09,
 148                 .yuv      = 1,
 149                 .planar   = 1,
 150                 .hshift   = 1,
 151                 .vshift   = 0,
 152         },{
 153                 .fourcc   = V4L2_PIX_FMT_YUV420,
 154                 .depth    = 12,
 155                 .pm       = 0x0a,
 156                 .yuv      = 1,
 157                 .planar   = 1,
 158                 .hshift   = 1,
 159                 .vshift   = 1,
 160         },{
 161                 .fourcc   = V4L2_PIX_FMT_YVU420,
 162                 .depth    = 12,
 163                 .pm       = 0x0a,
 164                 .yuv      = 1,
 165                 .planar   = 1,
 166                 .uvswap   = 1,
 167                 .hshift   = 1,
 168                 .vshift   = 1,
 169         }
 170 };
 171 #define FORMATS ARRAY_SIZE(formats)
 172
 173 #define NORM_625_50                     \
 174                 .h_start       = 0,     \
 175                 .h_stop        = 719,   \
 176                 .video_v_start = 24,    \
 177                 .video_v_stop  = 311,   \
 178                 .vbi_v_start_0 = 7,     \
 179                 .vbi_v_stop_0  = 23,    \
 180                 .vbi_v_start_1 = 319,   \
 181                 .src_timing    = 4
 182
 183 #define NORM_525_60                     \
 184                 .h_start       = 0,     \
 185                 .h_stop        = 719,   \
 186                 .video_v_start = 23,    \
 187                 .video_v_stop  = 262,   \
 188                 .vbi_v_start_0 = 10,    \
 189                 .vbi_v_stop_0  = 21,    \
 190                 .vbi_v_start_1 = 273,   \
 191                 .src_timing    = 7
 192
 193 static struct saa7134_tvnorm tvnorms[] = {
 194         {
 195                 .name          = "PAL", /* autodetect */
 196                 .id            = V4L2_STD_PAL,
 197                 NORM_625_50,
 198
 199                 .sync_control  = 0x18,
 200                 .luma_control  = 0x40,
 201                 .chroma_ctrl1  = 0x81,
 202                 .chroma_gain   = 0x2a,
 203                 .chroma_ctrl2  = 0x06,
 204                 .vgate_misc    = 0x1c,
 205
 206         },{
 207                 .name          = "PAL-BG",
 208                 .id            = V4L2_STD_PAL_BG,
 209                 NORM_625_50,
 210
 211                 .sync_control  = 0x18,
 212                 .luma_control  = 0x40,
 213                 .chroma_ctrl1  = 0x81,
 214                 .chroma_gain   = 0x2a,
 215                 .chroma_ctrl2  = 0x06,
 216                 .vgate_misc    = 0x1c,
 217
 218         },{
 219                 .name          = "PAL-I",
 220                 .id            = V4L2_STD_PAL_I,
 221                 NORM_625_50,
 222
 223                 .sync_control  = 0x18,
 224                 .luma_control  = 0x40,
 225                 .chroma_ctrl1  = 0x81,
 226                 .chroma_gain   = 0x2a,
 227                 .chroma_ctrl2  = 0x06,
 228                 .vgate_misc    = 0x1c,
 229
 230         },{
 231                 .name          = "PAL-DK",
 232                 .id            = V4L2_STD_PAL_DK,
 233                 NORM_625_50,
 234
 235                 .sync_control  = 0x18,
 236                 .luma_control  = 0x40,
 237                 .chroma_ctrl1  = 0x81,
 238                 .chroma_gain   = 0x2a,
 239                 .chroma_ctrl2  = 0x06,
 240                 .vgate_misc    = 0x1c,
 241
 242         },{
 243                 .name          = "NTSC",
 244                 .id            = V4L2_STD_NTSC,
 245                 NORM_525_60,
 246
 247                 .sync_control  = 0x59,
 248                 .luma_control  = 0x40,
 249                 .chroma_ctrl1  = 0x89,
 250                 .chroma_gain   = 0x2a,
 251                 .chroma_ctrl2  = 0x0e,
 252                 .vgate_misc    = 0x18,
 253
 254         },{
 255                 .name          = "SECAM",
 256                 .id            = V4L2_STD_SECAM,
 257                 NORM_625_50,
 258
 259                 .sync_control  = 0x18,
 260                 .luma_control  = 0x1b,
 261                 .chroma_ctrl1  = 0xd1,
 262                 .chroma_gain   = 0x80,
 263                 .chroma_ctrl2  = 0x00,
 264                 .vgate_misc    = 0x1c,
 265
 266         },{
 267                 .name          = "SECAM-DK",
 268                 .id            = V4L2_STD_SECAM_DK,
 269                 NORM_625_50,
 270
 271                 .sync_control  = 0x18,
 272                 .luma_control  = 0x1b,
 273                 .chroma_ctrl1  = 0xd1,
 274                 .chroma_gain   = 0x80,
 275                 .chroma_ctrl2  = 0x00,
 276                 .vgate_misc    = 0x1c,
 277
 278         },{
 279                 .name          = "SECAM-L",
 280                 .id            = V4L2_STD_SECAM_L,
 281                 NORM_625_50,
 282
 283                 .sync_control  = 0x18,
 284                 .luma_control  = 0x1b,
 285                 .chroma_ctrl1  = 0xd1,
 286                 .chroma_gain   = 0x80,
 287                 .chroma_ctrl2  = 0x00,
 288                 .vgate_misc    = 0x1c,
 289
 290         },{
 291                 .name          = "SECAM-Lc",
 292                 .id            = V4L2_STD_SECAM_LC,
 293                 NORM_625_50,
 294
 295                 .sync_control  = 0x18,
 296                 .luma_control  = 0x1b,
 297                 .chroma_ctrl1  = 0xd1,
 298                 .chroma_gain   = 0x80,
 299                 .chroma_ctrl2  = 0x00,
 300                 .vgate_misc    = 0x1c,
 301
 302         },{
 303                 .name          = "PAL-M",
 304                 .id            = V4L2_STD_PAL_M,
 305                 NORM_525_60,
 306
 307                 .sync_control  = 0x59,
 308                 .luma_control  = 0x40,
 309                 .chroma_ctrl1  = 0xb9,
 310                 .chroma_gain   = 0x2a,
 311                 .chroma_ctrl2  = 0x0e,
 312                 .vgate_misc    = 0x18,
 313
 314         },{
 315                 .name          = "PAL-Nc",
 316                 .id            = V4L2_STD_PAL_Nc,
 317                 NORM_625_50,
 318
 319                 .sync_control  = 0x18,
 320                 .luma_control  = 0x40,
 321                 .chroma_ctrl1  = 0xa1,
 322                 .chroma_gain   = 0x2a,
 323                 .chroma_ctrl2  = 0x06,
 324                 .vgate_misc    = 0x1c,
 325
 326         },{
 327                 .name          = "PAL-60",
 328                 .id            = V4L2_STD_PAL_60,
 329
 330                 .h_start       = 0,
 331                 .h_stop        = 719,
 332                 .video_v_start = 23,
 333                 .video_v_stop  = 262,
 334                 .vbi_v_start_0 = 10,
 335                 .vbi_v_stop_0  = 21,
 336                 .vbi_v_start_1 = 273,
 337                 .src_timing    = 7,
 338
 339                 .sync_control  = 0x18,
 340                 .luma_control  = 0x40,
 341                 .chroma_ctrl1  = 0x81,
 342                 .chroma_gain   = 0x2a,
 343                 .chroma_ctrl2  = 0x06,
 344                 .vgate_misc    = 0x1c,
 345         }
 346 };
 347 #define TVNORMS ARRAY_SIZE(tvnorms)
 348
 349 static struct saa7134_format* format_by_fourcc(unsigned int fourcc)
 350 {
 351         unsigned int i;
 352
 353         for (i = 0; i < FORMATS; i++)
 354                 if (formats[i].fourcc == fourcc)
 355                         return formats+i;
 356         return NULL;
 357 }
 358
 359 /* ------------------------------------------------------------------ */
 360
 361 static void set_tvnorm(struct saa7134_dev *dev, struct saa7134_tvnorm *norm)
 362 {
 363         video_dbg("set tv norm = %s\n", norm->name);
 364         dev->tvnorm = norm;
 365
 366         /* setup cropping */
 367         dev->crop_bounds.left    = norm->h_start;
 368         dev->crop_defrect.left   = norm->h_start;
 369         dev->crop_bounds.width   = norm->h_stop - norm->h_start +1;
 370         dev->crop_defrect.width  = norm->h_stop - norm->h_start +1;
 371
 372         dev->crop_bounds.top     = (norm->vbi_v_stop_0+1)*2;
 373         dev->crop_defrect.top    = norm->video_v_start*2;
 374         dev->crop_bounds.height  = ((norm->id & V4L2_STD_525_60) ? 524 : 624)
 375                 - dev->crop_bounds.top;
 376         dev->crop_defrect.height = (norm->video_v_stop - norm->video_v_start +1)*2;
 377
 378         dev->crop_current = dev->crop_defrect;
 379
 380         saa7134_set_tvnorm_hw(dev);
 381 }
 382
 383 static void video_mux(struct saa7134_dev *dev, int input)
 384 {
 385         video_dbg("video input = %d [%s]\n",
 386                   input, saa7134_input_name[card_in(dev, input).type]);
 387         dev->ctl_input = input;
 388         set_tvnorm(dev, dev->tvnorm);
 389         saa7134_tvaudio_setinput(dev, &card_in(dev, input));
 390 }
 391
 392
 393 static void saa7134_set_decoder(struct saa7134_dev *dev)
 394 {
 395         int luma_control, sync_control, chroma_ctrl1, mux;
 396
 397         struct saa7134_tvnorm *norm = dev->tvnorm;
 398         mux = card_in(dev, dev->ctl_input).vmux;
 399
 400         luma_control = norm->luma_control;
 401         sync_control = norm->sync_control;
 402         chroma_ctrl1 = norm->chroma_ctrl1;
 403
 404         if (mux > 5)
 405                 luma_control |= 0x80; /* svideo */
 406         if (noninterlaced || dev->nosignal)
 407                 sync_control |= 0x20;
 408
 409         /* switch on auto standard detection */
 410         sync_control |= SAA7134_SYNC_CTRL_AUFD;
 411         chroma_ctrl1 |= SAA7134_CHROMA_CTRL1_AUTO0;
 412         chroma_ctrl1 &= ~SAA7134_CHROMA_CTRL1_FCTC;
 413         luma_control &= ~SAA7134_LUMA_CTRL_LDEL;
 414
 415         /* setup video decoder */
 416         saa_writeb(SAA7134_INCR_DELAY,            0x08);
 417         saa_writeb(SAA7134_ANALOG_IN_CTRL1,       0xc0 | mux);
 418         saa_writeb(SAA7134_ANALOG_IN_CTRL2,       0x00);
 419
 420         saa_writeb(SAA7134_ANALOG_IN_CTRL3,       0x90);
 421         saa_writeb(SAA7134_ANALOG_IN_CTRL4,       0x90);
 422         saa_writeb(SAA7134_HSYNC_START,           0xeb);
 423         saa_writeb(SAA7134_HSYNC_STOP,            0xe0);
 424         saa_writeb(SAA7134_SOURCE_TIMING1,        norm->src_timing);
 425
 426         saa_writeb(SAA7134_SYNC_CTRL,             sync_control);
 427         saa_writeb(SAA7134_LUMA_CTRL,             luma_control);
 428         saa_writeb(SAA7134_DEC_LUMA_BRIGHT,       dev->ctl_bright);
 429
 430         saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
 431                 dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
 432
 433         saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
 434                 dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
 435
 436         saa_writeb(SAA7134_DEC_CHROMA_HUE,        dev->ctl_hue);
 437         saa_writeb(SAA7134_CHROMA_CTRL1,          chroma_ctrl1);
 438         saa_writeb(SAA7134_CHROMA_GAIN,           norm->chroma_gain);
 439
 440         saa_writeb(SAA7134_CHROMA_CTRL2,          norm->chroma_ctrl2);
 441         saa_writeb(SAA7134_MODE_DELAY_CTRL,       0x00);
 442
 443         saa_writeb(SAA7134_ANALOG_ADC,            0x01);
 444         saa_writeb(SAA7134_VGATE_START,           0x11);
 445         saa_writeb(SAA7134_VGATE_STOP,            0xfe);
 446         saa_writeb(SAA7134_MISC_VGATE_MSB,        norm->vgate_misc);
 447         saa_writeb(SAA7134_RAW_DATA_GAIN,         0x40);
 448         saa_writeb(SAA7134_RAW_DATA_OFFSET,       0x80);
 449 }
 450
 451 void saa7134_set_tvnorm_hw(struct saa7134_dev *dev)
 452 {
 453         saa7134_set_decoder(dev);
 454
 455         saa_call_all(dev, video, s_std, dev->tvnorm->id);
 456         /* Set the correct norm for the saa6752hs. This function
 457            does nothing if there is no saa6752hs. */
 458         saa_call_empress(dev, video, s_std, dev->tvnorm->id);
 459 }
 460
 461 static void set_h_prescale(struct saa7134_dev *dev, int task, int prescale)
 462 {
 463         static const struct {
 464                 int xpsc;
 465                 int xacl;
 466                 int xc2_1;
 467                 int xdcg;
 468                 int vpfy;
 469         } vals[] = {
 470                 /* XPSC XACL XC2_1 XDCG VPFY */
 471                 {    1,   0,    0,    0,   0 },
 472                 {    2,   2,    1,    2,   2 },
 473                 {    3,   4,    1,    3,   2 },
 474                 {    4,   8,    1,    4,   2 },
 475                 {    5,   8,    1,    4,   2 },
 476                 {    6,   8,    1,    4,   3 },
 477                 {    7,   8,    1,    4,   3 },
 478                 {    8,  15,    0,    4,   3 },
 479                 {    9,  15,    0,    4,   3 },
 480                 {   10,  16,    1,    5,   3 },
 481         };
 482         static const int count = ARRAY_SIZE(vals);
 483         int i;
 484
 485         for (i = 0; i < count; i++)
 486                 if (vals[i].xpsc == prescale)
 487                         break;
 488         if (i == count)
 489                 return;
 490
 491         saa_writeb(SAA7134_H_PRESCALE(task), vals[i].xpsc);
 492         saa_writeb(SAA7134_ACC_LENGTH(task), vals[i].xacl);
 493         saa_writeb(SAA7134_LEVEL_CTRL(task),
 494                    (vals[i].xc2_1 << 3) | (vals[i].xdcg));
 495         saa_andorb(SAA7134_FIR_PREFILTER_CTRL(task), 0x0f,
 496                    (vals[i].vpfy << 2) | vals[i].vpfy);
 497 }
 498
 499 static void set_v_scale(struct saa7134_dev *dev, int task, int yscale)
 500 {
 501         int val,mirror;
 502
 503         saa_writeb(SAA7134_V_SCALE_RATIO1(task), yscale &  0xff);
 504         saa_writeb(SAA7134_V_SCALE_RATIO2(task), yscale >> 8);
 505
 506         mirror = (dev->ctl_mirror) ? 0x02 : 0x00;
 507         if (yscale < 2048) {
 508                 /* LPI */
 509                 video_dbg("yscale LPI yscale=%d\n", yscale);
 510                 saa_writeb(SAA7134_V_FILTER(task), 0x00 | mirror);
 511                 saa_writeb(SAA7134_LUMA_CONTRAST(task), 0x40);
 512                 saa_writeb(SAA7134_CHROMA_SATURATION(task), 0x40);
 513         } else {
 514                 /* ACM */
 515                 val = 0x40 * 1024 / yscale;
 516                 video_dbg("yscale ACM yscale=%d val=0x%x\n", yscale, val);
 517                 saa_writeb(SAA7134_V_FILTER(task), 0x01 | mirror);
 518                 saa_writeb(SAA7134_LUMA_CONTRAST(task), val);
 519                 saa_writeb(SAA7134_CHROMA_SATURATION(task), val);
 520         }
 521         saa_writeb(SAA7134_LUMA_BRIGHT(task),       0x80);
 522 }
 523
 524 static void set_size(struct saa7134_dev *dev, int task,
 525                      int width, int height, int interlace)
 526 {
 527         int prescale,xscale,yscale,y_even,y_odd;
 528         int h_start, h_stop, v_start, v_stop;
 529         int div = interlace ? 2 : 1;
 530
 531         /* setup video scaler */
 532         h_start = dev->crop_current.left;
 533         v_start = dev->crop_current.top/2;
 534         h_stop  = (dev->crop_current.left + dev->crop_current.width -1);
 535         v_stop  = (dev->crop_current.top + dev->crop_current.height -1)/2;
 536
 537         saa_writeb(SAA7134_VIDEO_H_START1(task), h_start &  0xff);
 538         saa_writeb(SAA7134_VIDEO_H_START2(task), h_start >> 8);
 539         saa_writeb(SAA7134_VIDEO_H_STOP1(task),  h_stop  &  0xff);
 540         saa_writeb(SAA7134_VIDEO_H_STOP2(task),  h_stop  >> 8);
 541         saa_writeb(SAA7134_VIDEO_V_START1(task), v_start &  0xff);
 542         saa_writeb(SAA7134_VIDEO_V_START2(task), v_start >> 8);
 543         saa_writeb(SAA7134_VIDEO_V_STOP1(task),  v_stop  &  0xff);
 544         saa_writeb(SAA7134_VIDEO_V_STOP2(task),  v_stop  >> 8);
 545
 546         prescale = dev->crop_current.width / width;
 547         if (0 == prescale)
 548                 prescale = 1;
 549         xscale = 1024 * dev->crop_current.width / prescale / width;
 550         yscale = 512 * div * dev->crop_current.height / height;
 551         video_dbg("prescale=%d xscale=%d yscale=%d\n",
 552                   prescale, xscale, yscale);
 553         set_h_prescale(dev,task,prescale);
 554         saa_writeb(SAA7134_H_SCALE_INC1(task),      xscale &  0xff);
 555         saa_writeb(SAA7134_H_SCALE_INC2(task),      xscale >> 8);
 556         set_v_scale(dev,task,yscale);
 557
 558         saa_writeb(SAA7134_VIDEO_PIXELS1(task),     width  & 0xff);
 559         saa_writeb(SAA7134_VIDEO_PIXELS2(task),     width  >> 8);
 560         saa_writeb(SAA7134_VIDEO_LINES1(task),      height/div & 0xff);
 561         saa_writeb(SAA7134_VIDEO_LINES2(task),      height/div >> 8);
 562
 563         /* deinterlace y offsets */
 564         y_odd  = dev->ctl_y_odd;
 565         y_even = dev->ctl_y_even;
 566         saa_writeb(SAA7134_V_PHASE_OFFSET0(task), y_odd);
 567         saa_writeb(SAA7134_V_PHASE_OFFSET1(task), y_even);
 568         saa_writeb(SAA7134_V_PHASE_OFFSET2(task), y_odd);
 569         saa_writeb(SAA7134_V_PHASE_OFFSET3(task), y_even);
 570 }
 571
 572 /* ------------------------------------------------------------------ */
 573
 574 struct cliplist {
 575         __u16 position;
 576         __u8  enable;
 577         __u8  disable;
 578 };
 579
 580 static void set_cliplist(struct saa7134_dev *dev, int reg,
 581                         struct cliplist *cl, int entries, char *name)
 582 {
 583         __u8 winbits = 0;
 584         int i;
 585
 586         for (i = 0; i < entries; i++) {
 587                 winbits |= cl[i].enable;
 588                 winbits &= ~cl[i].disable;
 589                 if (i < 15 && cl[i].position == cl[i+1].position)
 590                         continue;
 591                 saa_writeb(reg + 0, winbits);
 592                 saa_writeb(reg + 2, cl[i].position & 0xff);
 593                 saa_writeb(reg + 3, cl[i].position >> 8);
 594                 video_dbg("clip: %s winbits=%02x pos=%d\n",
 595                         name,winbits,cl[i].position);
 596                 reg += 8;
 597         }
 598         for (; reg < 0x400; reg += 8) {
 599                 saa_writeb(reg+ 0, 0);
 600                 saa_writeb(reg + 1, 0);
 601                 saa_writeb(reg + 2, 0);
 602                 saa_writeb(reg + 3, 0);
 603         }
 604 }
 605
 606 static int clip_range(int val)
 607 {
 608         if (val < 0)
 609                 val = 0;
 610         return val;
 611 }
 612
 613 /* Sort into smallest position first order */
 614 static int cliplist_cmp(const void *a, const void *b)
 615 {
 616         const struct cliplist *cla = a;
 617         const struct cliplist *clb = b;
 618         if (cla->position < clb->position)
 619                 return -1;
 620         if (cla->position > clb->position)
 621                 return 1;
 622         return 0;
 623 }
 624
 625 static int setup_clipping(struct saa7134_dev *dev, struct v4l2_clip *clips,
 626                           int nclips, int interlace)
 627 {
 628         struct cliplist col[16], row[16];
 629         int cols = 0, rows = 0, i;
 630         int div = interlace ? 2 : 1;
 631
 632         memset(col, 0, sizeof(col));
 633         memset(row, 0, sizeof(row));
 634         for (i = 0; i < nclips && i < 8; i++) {
 635                 col[cols].position = clip_range(clips[i].c.left);
 636                 col[cols].enable   = (1 << i);
 637                 cols++;
 638                 col[cols].position = clip_range(clips[i].c.left+clips[i].c.width);
 639                 col[cols].disable  = (1 << i);
 640                 cols++;
 641                 row[rows].position = clip_range(clips[i].c.top / div);
 642                 row[rows].enable   = (1 << i);
 643                 rows++;
 644                 row[rows].position = clip_range((clips[i].c.top + clips[i].c.height)
 645                                                 / div);
 646                 row[rows].disable  = (1 << i);
 647                 rows++;
 648         }
 649         sort(col, cols, sizeof col[0], cliplist_cmp, NULL);
 650         sort(row, rows, sizeof row[0], cliplist_cmp, NULL);
 651         set_cliplist(dev,0x380,col,cols,"cols");
 652         set_cliplist(dev,0x384,row,rows,"rows");
 653         return 0;
 654 }
 655
 656 static int verify_preview(struct saa7134_dev *dev, struct v4l2_window *win, bool try)
 657 {
 658         enum v4l2_field field;
 659         int maxw, maxh;
 660
 661         if (!try && (dev->ovbuf.base == NULL || dev->ovfmt == NULL))
 662                 return -EINVAL;
 663         if (win->w.width < 48)
 664                 win->w.width = 48;
 665         if (win->w.height < 32)
 666                 win->w.height = 32;
 667         if (win->clipcount > 8)
 668                 win->clipcount = 8;
 669
 670         win->chromakey = 0;
 671         win->global_alpha = 0;
 672         field = win->field;
 673         maxw  = dev->crop_current.width;
 674         maxh  = dev->crop_current.height;
 675
 676         if (V4L2_FIELD_ANY == field) {
 677                 field = (win->w.height > maxh/2)
 678                         ? V4L2_FIELD_INTERLACED
 679                         : V4L2_FIELD_TOP;
 680         }
 681         switch (field) {
 682         case V4L2_FIELD_TOP:
 683         case V4L2_FIELD_BOTTOM:
 684                 maxh = maxh / 2;
 685                 break;
 686         default:
 687                 field = V4L2_FIELD_INTERLACED;
 688                 break;
 689         }
 690
 691         win->field = field;
 692         if (win->w.width > maxw)
 693                 win->w.width = maxw;
 694         if (win->w.height > maxh)
 695                 win->w.height = maxh;
 696         return 0;
 697 }
 698
 699 static int start_preview(struct saa7134_dev *dev)
 700 {
 701         unsigned long base,control,bpl;
 702         int err;
 703
 704         err = verify_preview(dev, &dev->win, false);
 705         if (0 != err)
 706                 return err;
 707
 708         dev->ovfield = dev->win.field;
 709         video_dbg("%s %dx%d+%d+%d 0x%08x field=%s\n", __func__,
 710                   dev->win.w.width, dev->win.w.height,
 711                   dev->win.w.left, dev->win.w.top,
 712                   dev->ovfmt->fourcc, v4l2_field_names[dev->ovfield]);
 713
 714         /* setup window + clipping */
 715         set_size(dev, TASK_B, dev->win.w.width, dev->win.w.height,
 716                  V4L2_FIELD_HAS_BOTH(dev->ovfield));
 717         setup_clipping(dev, dev->clips, dev->nclips,
 718                        V4L2_FIELD_HAS_BOTH(dev->ovfield));
 719         if (dev->ovfmt->yuv)
 720                 saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x03);
 721         else
 722                 saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x01);
 723         saa_writeb(SAA7134_OFMT_VIDEO_B, dev->ovfmt->pm | 0x20);
 724
 725         /* dma: setup channel 1 (= Video Task B) */
 726         base  = (unsigned long)dev->ovbuf.base;
 727         base += dev->ovbuf.fmt.bytesperline * dev->win.w.top;
 728         base += dev->ovfmt->depth/8         * dev->win.w.left;
 729         bpl   = dev->ovbuf.fmt.bytesperline;
 730         control = SAA7134_RS_CONTROL_BURST_16;
 731         if (dev->ovfmt->bswap)
 732                 control |= SAA7134_RS_CONTROL_BSWAP;
 733         if (dev->ovfmt->wswap)
 734                 control |= SAA7134_RS_CONTROL_WSWAP;
 735         if (V4L2_FIELD_HAS_BOTH(dev->ovfield)) {
 736                 saa_writel(SAA7134_RS_BA1(1),base);
 737                 saa_writel(SAA7134_RS_BA2(1),base+bpl);
 738                 saa_writel(SAA7134_RS_PITCH(1),bpl*2);
 739                 saa_writel(SAA7134_RS_CONTROL(1),control);
 740         } else {
 741                 saa_writel(SAA7134_RS_BA1(1),base);
 742                 saa_writel(SAA7134_RS_BA2(1),base);
 743                 saa_writel(SAA7134_RS_PITCH(1),bpl);
 744                 saa_writel(SAA7134_RS_CONTROL(1),control);
 745         }
 746
 747         /* start dma */
 748         dev->ovenable = 1;
 749         saa7134_set_dmabits(dev);
 750
 751         return 0;
 752 }
 753
 754 static int stop_preview(struct saa7134_dev *dev)
 755 {
 756         dev->ovenable = 0;
 757         saa7134_set_dmabits(dev);
 758         return 0;
 759 }
 760
 761 /*
 762  * Media Controller helper functions
 763  */
 764
 765 static int saa7134_enable_analog_tuner(struct saa7134_dev *dev)
 766 {
 767 #ifdef CONFIG_MEDIA_CONTROLLER
 768         struct media_device *mdev = dev->media_dev;
 769         struct media_entity *source;
 770         struct media_link *link, *found_link = NULL;
 771         int ret, active_links = 0;
 772
 773         if (!mdev || !dev->decoder)
 774                 return 0;
 775
 776         /*
 777          * This will find the tuner that is connected into the decoder.
 778          * Technically, this is not 100% correct, as the device may be
 779          * using an analog input instead of the tuner. However, as we can't
 780          * do DVB streaming while the DMA engine is being used for V4L2,
 781          * this should be enough for the actual needs.
 782          */
 783         list_for_each_entry(link, &dev->decoder->links, list) {
 784                 if (link->sink->entity == dev->decoder) {
 785                         found_link = link;
 786                         if (link->flags & MEDIA_LNK_FL_ENABLED)
 787                                 active_links++;
 788                         break;
 789                 }
 790         }
 791
 792         if (active_links == 1 || !found_link)
 793                 return 0;
 794
 795         source = found_link->source->entity;
 796         list_for_each_entry(link, &source->links, list) {
 797                 struct media_entity *sink;
 798                 int flags = 0;
 799
 800                 sink = link->sink->entity;
 801
 802                 if (sink == dev->decoder)
 803                         flags = MEDIA_LNK_FL_ENABLED;
 804
 805                 ret = media_entity_setup_link(link, flags);
 806                 if (ret) {
 807                         pr_err("Couldn't change link %s->%s to %s. Error %d\n",
 808                                source->name, sink->name,
 809                                flags ? "enabled" : "disabled",
 810                                ret);
 811                         return ret;
 812                 }
 813         }
 814 #endif
 815         return 0;
 816 }
 817
 818 /* ------------------------------------------------------------------ */
 819
 820 static int buffer_activate(struct saa7134_dev *dev,
 821                            struct saa7134_buf *buf,
 822                            struct saa7134_buf *next)
 823 {
 824         struct saa7134_dmaqueue *dmaq = buf->vb2.vb2_buf.vb2_queue->drv_priv;
 825         unsigned long base,control,bpl;
 826         unsigned long bpl_uv,lines_uv,base2,base3,tmp; /* planar */
 827
 828         video_dbg("buffer_activate buf=%p\n", buf);
 829         buf->top_seen = 0;
 830
 831         set_size(dev, TASK_A, dev->width, dev->height,
 832                  V4L2_FIELD_HAS_BOTH(dev->field));
 833         if (dev->fmt->yuv)
 834                 saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x03);
 835         else
 836                 saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x01);
 837         saa_writeb(SAA7134_OFMT_VIDEO_A, dev->fmt->pm);
 838
 839         /* DMA: setup channel 0 (= Video Task A0) */
 840         base  = saa7134_buffer_base(buf);
 841         if (dev->fmt->planar)
 842                 bpl = dev->width;
 843         else
 844                 bpl = (dev->width * dev->fmt->depth) / 8;
 845         control = SAA7134_RS_CONTROL_BURST_16 |
 846                 SAA7134_RS_CONTROL_ME |
 847                 (dmaq->pt.dma >> 12);
 848         if (dev->fmt->bswap)
 849                 control |= SAA7134_RS_CONTROL_BSWAP;
 850         if (dev->fmt->wswap)
 851                 control |= SAA7134_RS_CONTROL_WSWAP;
 852         if (V4L2_FIELD_HAS_BOTH(dev->field)) {
 853                 /* interlaced */
 854                 saa_writel(SAA7134_RS_BA1(0),base);
 855                 saa_writel(SAA7134_RS_BA2(0),base+bpl);
 856                 saa_writel(SAA7134_RS_PITCH(0),bpl*2);
 857         } else {
 858                 /* non-interlaced */
 859                 saa_writel(SAA7134_RS_BA1(0),base);
 860                 saa_writel(SAA7134_RS_BA2(0),base);
 861                 saa_writel(SAA7134_RS_PITCH(0),bpl);
 862         }
 863         saa_writel(SAA7134_RS_CONTROL(0),control);
 864
 865         if (dev->fmt->planar) {
 866                 /* DMA: setup channel 4+5 (= planar task A) */
 867                 bpl_uv   = bpl >> dev->fmt->hshift;
 868                 lines_uv = dev->height >> dev->fmt->vshift;
 869                 base2    = base + bpl * dev->height;
 870                 base3    = base2 + bpl_uv * lines_uv;
 871                 if (dev->fmt->uvswap) {
 872                         tmp = base2;
 873                         base2 = base3;
 874                         base3 = tmp;
 875                 }
 876                 video_dbg("uv: bpl=%ld lines=%ld base2/3=%ld/%ld\n",
 877                         bpl_uv,lines_uv,base2,base3);
 878                 if (V4L2_FIELD_HAS_BOTH(dev->field)) {
 879                         /* interlaced */
 880                         saa_writel(SAA7134_RS_BA1(4),base2);
 881                         saa_writel(SAA7134_RS_BA2(4),base2+bpl_uv);
 882                         saa_writel(SAA7134_RS_PITCH(4),bpl_uv*2);
 883                         saa_writel(SAA7134_RS_BA1(5),base3);
 884                         saa_writel(SAA7134_RS_BA2(5),base3+bpl_uv);
 885                         saa_writel(SAA7134_RS_PITCH(5),bpl_uv*2);
 886                 } else {
 887                         /* non-interlaced */
 888                         saa_writel(SAA7134_RS_BA1(4),base2);
 889                         saa_writel(SAA7134_RS_BA2(4),base2);
 890                         saa_writel(SAA7134_RS_PITCH(4),bpl_uv);
 891                         saa_writel(SAA7134_RS_BA1(5),base3);
 892                         saa_writel(SAA7134_RS_BA2(5),base3);
 893                         saa_writel(SAA7134_RS_PITCH(5),bpl_uv);
 894                 }
 895                 saa_writel(SAA7134_RS_CONTROL(4),control);
 896                 saa_writel(SAA7134_RS_CONTROL(5),control);
 897         }
 898
 899         /* start DMA */
 900         saa7134_set_dmabits(dev);
 901         mod_timer(&dmaq->timeout, jiffies + BUFFER_TIMEOUT);
 902         return 0;
 903 }
 904
 905 static int buffer_init(struct vb2_buffer *vb2)
 906 {
 907         struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
 908         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
 909         struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 910
 911         dmaq->curr = NULL;
 912         buf->activate = buffer_activate;
 913         return 0;
 914 }
 915
 916 static int buffer_prepare(struct vb2_buffer *vb2)
 917 {
 918         struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
 919         struct saa7134_dev *dev = dmaq->dev;
 920         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
 921         struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 922         struct sg_table *dma = vb2_dma_sg_plane_desc(vb2, 0);
 923         unsigned int size;
 924
 925         if (dma->sgl->offset) {
 926                 pr_err("The buffer is not page-aligned\n");
 927                 return -EINVAL;
 928         }
 929         size = (dev->width * dev->height * dev->fmt->depth) >> 3;
 930         if (vb2_plane_size(vb2, 0) < size)
 931                 return -EINVAL;
 932
 933         vb2_set_plane_payload(vb2, 0, size);
 934         vbuf->field = dev->field;
 935
 936         return saa7134_pgtable_build(dev->pci, &dmaq->pt, dma->sgl, dma->nents,
 937                                     saa7134_buffer_startpage(buf));
 938 }
 939
 940 static int queue_setup(struct vb2_queue *q,
 941                            unsigned int *nbuffers, unsigned int *nplanes,
 942                            unsigned int sizes[], struct device *alloc_devs[])
 943 {
 944         struct saa7134_dmaqueue *dmaq = q->drv_priv;
 945         struct saa7134_dev *dev = dmaq->dev;
 946         int size = dev->fmt->depth * dev->width * dev->height >> 3;
 947
 948         if (dev->width    < 48 ||
 949             dev->height   < 32 ||
 950             dev->width/4  > dev->crop_current.width  ||
 951             dev->height/4 > dev->crop_current.height ||
 952             dev->width    > dev->crop_bounds.width  ||
 953             dev->height   > dev->crop_bounds.height)
 954                 return -EINVAL;
 955
 956         *nbuffers = saa7134_buffer_count(size, *nbuffers);
 957         *nplanes = 1;
 958         sizes[0] = size;
 959
 960         saa7134_enable_analog_tuner(dev);
 961
 962         return 0;
 963 }
 964
 965 /*
 966  * move buffer to hardware queue
 967  */
 968 void saa7134_vb2_buffer_queue(struct vb2_buffer *vb)
 969 {
 970         struct saa7134_dmaqueue *dmaq = vb->vb2_queue->drv_priv;
 971         struct saa7134_dev *dev = dmaq->dev;
 972         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 973         struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 974
 975         saa7134_buffer_queue(dev, dmaq, buf);
 976 }
 977 EXPORT_SYMBOL_GPL(saa7134_vb2_buffer_queue);
 978
 979 int saa7134_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
 980 {
 981         struct saa7134_dmaqueue *dmaq = vq->drv_priv;
 982         struct saa7134_dev *dev = dmaq->dev;
 983
 984         /*
 985          * Planar video capture and TS share the same DMA channel,
 986          * so only one can be active at a time.
 987          */
 988         if (card_is_empress(dev) && vb2_is_busy(&dev->empress_vbq) &&
 989             dmaq == &dev->video_q && dev->fmt->planar) {
 990                 struct saa7134_buf *buf, *tmp;
 991
 992                 list_for_each_entry_safe(buf, tmp, &dmaq->queue, entry) {
 993                         list_del(&buf->entry);
 994                         vb2_buffer_done(&buf->vb2.vb2_buf,
 995                                         VB2_BUF_STATE_QUEUED);
 996                 }
 997                 if (dmaq->curr) {
 998                         vb2_buffer_done(&dmaq->curr->vb2.vb2_buf,
 999                                         VB2_BUF_STATE_QUEUED);
1000                         dmaq->curr = NULL;
1001                 }
1002                 return -EBUSY;
1003         }
1004
1005         /* The SAA7134 has a 1K FIFO; the datasheet suggests that when
1006          * configured conservatively, there's 22 usec of buffering for video.
1007          * We therefore request a DMA latency of 20 usec, giving us 2 usec of
1008          * margin in case the FIFO is configured differently to the datasheet.
1009          * Unfortunately, I lack register-level documentation to check the
1010          * Linux FIFO setup and confirm the perfect value.
1011          */
1012         if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
1013             (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
1014                 cpu_latency_qos_add_request(&dev->qos_request, 20);
1015         dmaq->seq_nr = 0;
1016
1017         return 0;
1018 }
1019
1020 void saa7134_vb2_stop_streaming(struct vb2_queue *vq)
1021 {
1022         struct saa7134_dmaqueue *dmaq = vq->drv_priv;
1023         struct saa7134_dev *dev = dmaq->dev;
1024
1025         saa7134_stop_streaming(dev, dmaq);
1026
1027         if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
1028             (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
1029                 cpu_latency_qos_remove_request(&dev->qos_request);
1030 }
1031
1032 static const struct vb2_ops vb2_qops = {
1033         .queue_setup    = queue_setup,
1034         .buf_init       = buffer_init,
1035         .buf_prepare    = buffer_prepare,
1036         .buf_queue      = saa7134_vb2_buffer_queue,
1037         .wait_prepare   = vb2_ops_wait_prepare,
1038         .wait_finish    = vb2_ops_wait_finish,
1039         .start_streaming = saa7134_vb2_start_streaming,
1040         .stop_streaming = saa7134_vb2_stop_streaming,
1041 };
1042
1043 /* ------------------------------------------------------------------ */
1044
1045 static int saa7134_s_ctrl(struct v4l2_ctrl *ctrl)
1046 {
1047         struct saa7134_dev *dev = container_of(ctrl->handler, struct saa7134_dev, ctrl_handler);
1048         unsigned long flags;
1049         int restart_overlay = 0;
1050
1051         switch (ctrl->id) {
1052         case V4L2_CID_BRIGHTNESS:
1053                 dev->ctl_bright = ctrl->val;
1054                 saa_writeb(SAA7134_DEC_LUMA_BRIGHT, ctrl->val);
1055                 break;
1056         case V4L2_CID_HUE:
1057                 dev->ctl_hue = ctrl->val;
1058                 saa_writeb(SAA7134_DEC_CHROMA_HUE, ctrl->val);
1059                 break;
1060         case V4L2_CID_CONTRAST:
1061                 dev->ctl_contrast = ctrl->val;
1062                 saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1063                            dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1064                 break;
1065         case V4L2_CID_SATURATION:
1066                 dev->ctl_saturation = ctrl->val;
1067                 saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1068                            dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1069                 break;
1070         case V4L2_CID_AUDIO_MUTE:
1071                 dev->ctl_mute = ctrl->val;
1072                 saa7134_tvaudio_setmute(dev);
1073                 break;
1074         case V4L2_CID_AUDIO_VOLUME:
1075                 dev->ctl_volume = ctrl->val;
1076                 saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
1077                 break;
1078         case V4L2_CID_PRIVATE_INVERT:
1079                 dev->ctl_invert = ctrl->val;
1080                 saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1081                            dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1082                 saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1083                            dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1084                 break;
1085         case V4L2_CID_HFLIP:
1086                 dev->ctl_mirror = ctrl->val;
1087                 restart_overlay = 1;
1088                 break;
1089         case V4L2_CID_PRIVATE_Y_EVEN:
1090                 dev->ctl_y_even = ctrl->val;
1091                 restart_overlay = 1;
1092                 break;
1093         case V4L2_CID_PRIVATE_Y_ODD:
1094                 dev->ctl_y_odd = ctrl->val;
1095                 restart_overlay = 1;
1096                 break;
1097         case V4L2_CID_PRIVATE_AUTOMUTE:
1098         {
1099                 struct v4l2_priv_tun_config tda9887_cfg;
1100
1101                 tda9887_cfg.tuner = TUNER_TDA9887;
1102                 tda9887_cfg.priv = &dev->tda9887_conf;
1103
1104                 dev->ctl_automute = ctrl->val;
1105                 if (dev->tda9887_conf) {
1106                         if (dev->ctl_automute)
1107                                 dev->tda9887_conf |= TDA9887_AUTOMUTE;
1108                         else
1109                                 dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
1110
1111                         saa_call_all(dev, tuner, s_config, &tda9887_cfg);
1112                 }
1113                 break;
1114         }
1115         default:
1116                 return -EINVAL;
1117         }
1118         if (restart_overlay && dev->overlay_owner) {
1119                 spin_lock_irqsave(&dev->slock, flags);
1120                 stop_preview(dev);
1121                 start_preview(dev);
1122                 spin_unlock_irqrestore(&dev->slock, flags);
1123         }
1124         return 0;
1125 }
1126
1127 /* ------------------------------------------------------------------ */
1128
1129 static int video_open(struct file *file)
1130 {
1131         struct video_device *vdev = video_devdata(file);
1132         struct saa7134_dev *dev = video_drvdata(file);
1133         int ret = v4l2_fh_open(file);
1134
1135         if (ret < 0)
1136                 return ret;
1137
1138         mutex_lock(&dev->lock);
1139         if (vdev->vfl_type == VFL_TYPE_RADIO) {
1140                 /* switch to radio mode */
1141                 saa7134_tvaudio_setinput(dev, &card(dev).radio);
1142                 saa_call_all(dev, tuner, s_radio);
1143         } else {
1144                 /* switch to video/vbi mode */
1145                 video_mux(dev, dev->ctl_input);
1146         }
1147         mutex_unlock(&dev->lock);
1148
1149         return 0;
1150 }
1151
1152 static int video_release(struct file *file)
1153 {
1154         struct video_device *vdev = video_devdata(file);
1155         struct saa7134_dev *dev = video_drvdata(file);
1156         struct v4l2_fh *fh = file->private_data;
1157         struct saa6588_command cmd;
1158         unsigned long flags;
1159
1160         mutex_lock(&dev->lock);
1161         saa7134_tvaudio_close(dev);
1162
1163         /* turn off overlay */
1164         if (fh == dev->overlay_owner) {
1165                 spin_lock_irqsave(&dev->slock,flags);
1166                 stop_preview(dev);
1167                 spin_unlock_irqrestore(&dev->slock,flags);
1168                 dev->overlay_owner = NULL;
1169         }
1170
1171         if (vdev->vfl_type == VFL_TYPE_RADIO)
1172                 v4l2_fh_release(file);
1173         else
1174                 _vb2_fop_release(file, NULL);
1175
1176         /* ts-capture will not work in planar mode, so turn it off Hac: 04.05*/
1177         saa_andorb(SAA7134_OFMT_VIDEO_A, 0x1f, 0);
1178         saa_andorb(SAA7134_OFMT_VIDEO_B, 0x1f, 0);
1179         saa_andorb(SAA7134_OFMT_DATA_A, 0x1f, 0);
1180         saa_andorb(SAA7134_OFMT_DATA_B, 0x1f, 0);
1181
1182         saa_call_all(dev, tuner, standby);
1183         if (vdev->vfl_type == VFL_TYPE_RADIO)
1184                 saa_call_all(dev, core, ioctl, SAA6588_CMD_CLOSE, &cmd);
1185         mutex_unlock(&dev->lock);
1186
1187         return 0;
1188 }
1189
1190 static ssize_t radio_read(struct file *file, char __user *data,
1191                          size_t count, loff_t *ppos)
1192 {
1193         struct saa7134_dev *dev = video_drvdata(file);
1194         struct saa6588_command cmd;
1195
1196         cmd.block_count = count/3;
1197         cmd.nonblocking = file->f_flags & O_NONBLOCK;
1198         cmd.buffer = data;
1199         cmd.instance = file;
1200         cmd.result = -ENODEV;
1201
1202         mutex_lock(&dev->lock);
1203         saa_call_all(dev, core, ioctl, SAA6588_CMD_READ, &cmd);
1204         mutex_unlock(&dev->lock);
1205
1206         return cmd.result;
1207 }
1208
1209 static __poll_t radio_poll(struct file *file, poll_table *wait)
1210 {
1211         struct saa7134_dev *dev = video_drvdata(file);
1212         struct saa6588_command cmd;
1213         __poll_t rc = v4l2_ctrl_poll(file, wait);
1214
1215         cmd.instance = file;
1216         cmd.event_list = wait;
1217         cmd.poll_mask = 0;
1218         mutex_lock(&dev->lock);
1219         saa_call_all(dev, core, ioctl, SAA6588_CMD_POLL, &cmd);
1220         mutex_unlock(&dev->lock);
1221
1222         return rc | cmd.poll_mask;
1223 }
1224
1225 /* ------------------------------------------------------------------ */
1226
1227 static int saa7134_try_get_set_fmt_vbi_cap(struct file *file, void *priv,
1228                                                 struct v4l2_format *f)
1229 {
1230         struct saa7134_dev *dev = video_drvdata(file);
1231         struct saa7134_tvnorm *norm = dev->tvnorm;
1232
1233         memset(&f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1234         f->fmt.vbi.sampling_rate = 6750000 * 4;
1235         f->fmt.vbi.samples_per_line = 2048 /* VBI_LINE_LENGTH */;
1236         f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1237         f->fmt.vbi.offset = 64 * 4;
1238         f->fmt.vbi.start[0] = norm->vbi_v_start_0;
1239         f->fmt.vbi.count[0] = norm->vbi_v_stop_0 - norm->vbi_v_start_0 +1;
1240         f->fmt.vbi.start[1] = norm->vbi_v_start_1;
1241         f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1242         f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
1243
1244         return 0;
1245 }
1246
1247 static int saa7134_g_fmt_vid_cap(struct file *file, void *priv,
1248                                 struct v4l2_format *f)
1249 {
1250         struct saa7134_dev *dev = video_drvdata(file);
1251
1252         f->fmt.pix.width        = dev->width;
1253         f->fmt.pix.height       = dev->height;
1254         f->fmt.pix.field        = dev->field;
1255         f->fmt.pix.pixelformat  = dev->fmt->fourcc;
1256         if (dev->fmt->planar)
1257                 f->fmt.pix.bytesperline = f->fmt.pix.width;
1258         else
1259                 f->fmt.pix.bytesperline =
1260                         (f->fmt.pix.width * dev->fmt->depth) / 8;
1261         f->fmt.pix.sizeimage =
1262                 (f->fmt.pix.height * f->fmt.pix.width * dev->fmt->depth) / 8;
1263         f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
1264         return 0;
1265 }
1266
1267 static int saa7134_g_fmt_vid_overlay(struct file *file, void *priv,
1268                                 struct v4l2_format *f)
1269 {
1270         struct saa7134_dev *dev = video_drvdata(file);
1271         u32 clipcount = f->fmt.win.clipcount;
1272         int i;
1273
1274         if (saa7134_no_overlay > 0) {
1275                 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1276                 return -EINVAL;
1277         }
1278         f->fmt.win = dev->win;
1279         if (!f->fmt.win.clips) {
1280                 f->fmt.win.clipcount = 0;
1281                 return 0;
1282         }
1283         if (dev->nclips < clipcount)
1284                 clipcount = dev->nclips;
1285         f->fmt.win.clipcount = clipcount;
1286
1287         for (i = 0; i < clipcount; i++) {
1288                 memcpy(&f->fmt.win.clips[i].c, &dev->clips[i].c,
1289                        sizeof(struct v4l2_rect));
1290         }
1291
1292         return 0;
1293 }
1294
1295 static int saa7134_try_fmt_vid_cap(struct file *file, void *priv,
1296                                                 struct v4l2_format *f)
1297 {
1298         struct saa7134_dev *dev = video_drvdata(file);
1299         struct saa7134_format *fmt;
1300         enum v4l2_field field;
1301         unsigned int maxw, maxh;
1302
1303         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1304         if (NULL == fmt)
1305                 return -EINVAL;
1306
1307         field = f->fmt.pix.field;
1308         maxw  = min(dev->crop_current.width*4,  dev->crop_bounds.width);
1309         maxh  = min(dev->crop_current.height*4, dev->crop_bounds.height);
1310
1311         if (V4L2_FIELD_ANY == field) {
1312                 field = (f->fmt.pix.height > maxh/2)
1313                         ? V4L2_FIELD_INTERLACED
1314                         : V4L2_FIELD_BOTTOM;
1315         }
1316         switch (field) {
1317         case V4L2_FIELD_TOP:
1318         case V4L2_FIELD_BOTTOM:
1319                 maxh = maxh / 2;
1320                 break;
1321         default:
1322                 field = V4L2_FIELD_INTERLACED;
1323                 break;
1324         }
1325
1326         f->fmt.pix.field = field;
1327         if (f->fmt.pix.width  < 48)
1328                 f->fmt.pix.width  = 48;
1329         if (f->fmt.pix.height < 32)
1330                 f->fmt.pix.height = 32;
1331         if (f->fmt.pix.width > maxw)
1332                 f->fmt.pix.width = maxw;
1333         if (f->fmt.pix.height > maxh)
1334                 f->fmt.pix.height = maxh;
1335         f->fmt.pix.width &= ~0x03;
1336         if (fmt->planar)
1337                 f->fmt.pix.bytesperline = f->fmt.pix.width;
1338         else
1339                 f->fmt.pix.bytesperline =
1340                         (f->fmt.pix.width * fmt->depth) / 8;
1341         f->fmt.pix.sizeimage =
1342                 (f->fmt.pix.height * f->fmt.pix.width * fmt->depth) / 8;
1343         f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
1344
1345         return 0;
1346 }
1347
1348 static int saa7134_try_fmt_vid_overlay(struct file *file, void *priv,
1349                                                 struct v4l2_format *f)
1350 {
1351         struct saa7134_dev *dev = video_drvdata(file);
1352
1353         if (saa7134_no_overlay > 0) {
1354                 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1355                 return -EINVAL;
1356         }
1357
1358         if (f->fmt.win.clips == NULL)
1359                 f->fmt.win.clipcount = 0;
1360         return verify_preview(dev, &f->fmt.win, true);
1361 }
1362
1363 static int saa7134_s_fmt_vid_cap(struct file *file, void *priv,
1364                                         struct v4l2_format *f)
1365 {
1366         struct saa7134_dev *dev = video_drvdata(file);
1367         int err;
1368
1369         err = saa7134_try_fmt_vid_cap(file, priv, f);
1370         if (0 != err)
1371                 return err;
1372
1373         dev->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1374         dev->width = f->fmt.pix.width;
1375         dev->height = f->fmt.pix.height;
1376         dev->field = f->fmt.pix.field;
1377         return 0;
1378 }
1379
1380 static int saa7134_s_fmt_vid_overlay(struct file *file, void *priv,
1381                                         struct v4l2_format *f)
1382 {
1383         struct saa7134_dev *dev = video_drvdata(file);
1384         int err;
1385         unsigned long flags;
1386
1387         if (saa7134_no_overlay > 0) {
1388                 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1389                 return -EINVAL;
1390         }
1391         if (f->fmt.win.clips == NULL)
1392                 f->fmt.win.clipcount = 0;
1393         err = verify_preview(dev, &f->fmt.win, true);
1394         if (0 != err)
1395                 return err;
1396
1397         dev->win    = f->fmt.win;
1398         dev->nclips = f->fmt.win.clipcount;
1399
1400         memcpy(dev->clips, f->fmt.win.clips,
1401                sizeof(struct v4l2_clip) * dev->nclips);
1402
1403         if (priv == dev->overlay_owner) {
1404                 spin_lock_irqsave(&dev->slock, flags);
1405                 stop_preview(dev);
1406                 start_preview(dev);
1407                 spin_unlock_irqrestore(&dev->slock, flags);
1408         }
1409
1410         return 0;
1411 }
1412
1413 int saa7134_enum_input(struct file *file, void *priv, struct v4l2_input *i)
1414 {
1415         struct saa7134_dev *dev = video_drvdata(file);
1416         unsigned int n;
1417
1418         n = i->index;
1419         if (n >= SAA7134_INPUT_MAX)
1420                 return -EINVAL;
1421         if (card_in(dev, i->index).type == SAA7134_NO_INPUT)
1422                 return -EINVAL;
1423         i->index = n;
1424         strscpy(i->name, saa7134_input_name[card_in(dev, n).type],
1425                 sizeof(i->name));
1426         switch (card_in(dev, n).type) {
1427         case SAA7134_INPUT_TV:
1428         case SAA7134_INPUT_TV_MONO:
1429                 i->type = V4L2_INPUT_TYPE_TUNER;
1430                 break;
1431         default:
1432                 i->type  = V4L2_INPUT_TYPE_CAMERA;
1433                 break;
1434         }
1435         if (n == dev->ctl_input) {
1436                 int v1 = saa_readb(SAA7134_STATUS_VIDEO1);
1437                 int v2 = saa_readb(SAA7134_STATUS_VIDEO2);
1438
1439                 if (0 != (v1 & 0x40))
1440                         i->status |= V4L2_IN_ST_NO_H_LOCK;
1441                 if (0 != (v2 & 0x40))
1442                         i->status |= V4L2_IN_ST_NO_SIGNAL;
1443                 if (0 != (v2 & 0x0e))
1444                         i->status |= V4L2_IN_ST_MACROVISION;
1445         }
1446         i->std = SAA7134_NORMS;
1447         return 0;
1448 }
1449 EXPORT_SYMBOL_GPL(saa7134_enum_input);
1450
1451 int saa7134_g_input(struct file *file, void *priv, unsigned int *i)
1452 {
1453         struct saa7134_dev *dev = video_drvdata(file);
1454
1455         *i = dev->ctl_input;
1456         return 0;
1457 }
1458 EXPORT_SYMBOL_GPL(saa7134_g_input);
1459
1460 int saa7134_s_input(struct file *file, void *priv, unsigned int i)
1461 {
1462         struct saa7134_dev *dev = video_drvdata(file);
1463
1464         if (i >= SAA7134_INPUT_MAX)
1465                 return -EINVAL;
1466         if (card_in(dev, i).type == SAA7134_NO_INPUT)
1467                 return -EINVAL;
1468         video_mux(dev, i);
1469         return 0;
1470 }
1471 EXPORT_SYMBOL_GPL(saa7134_s_input);
1472
1473 int saa7134_querycap(struct file *file, void *priv,
1474                                         struct v4l2_capability *cap)
1475 {
1476         struct saa7134_dev *dev = video_drvdata(file);
1477
1478         strscpy(cap->driver, "saa7134", sizeof(cap->driver));
1479         strscpy(cap->card, saa7134_boards[dev->board].name,
1480                 sizeof(cap->card));
1481         sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
1482         cap->capabilities = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1483                             V4L2_CAP_RADIO | V4L2_CAP_VIDEO_CAPTURE |
1484                             V4L2_CAP_VBI_CAPTURE | V4L2_CAP_DEVICE_CAPS;
1485         if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1486                 cap->capabilities |= V4L2_CAP_TUNER;
1487         if (dev->has_rds)
1488                 cap->capabilities |= V4L2_CAP_RDS_CAPTURE;
1489         if (saa7134_no_overlay <= 0)
1490                 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
1491
1492         return 0;
1493 }
1494 EXPORT_SYMBOL_GPL(saa7134_querycap);
1495
1496 int saa7134_s_std(struct file *file, void *priv, v4l2_std_id id)
1497 {
1498         struct saa7134_dev *dev = video_drvdata(file);
1499         struct v4l2_fh *fh = priv;
1500         unsigned long flags;
1501         unsigned int i;
1502         v4l2_std_id fixup;
1503
1504         if (is_empress(file) && dev->overlay_owner) {
1505                 /* Don't change the std from the mpeg device
1506                    if overlay is active. */
1507                 return -EBUSY;
1508         }
1509
1510         for (i = 0; i < TVNORMS; i++)
1511                 if (id == tvnorms[i].id)
1512                         break;
1513
1514         if (i == TVNORMS)
1515                 for (i = 0; i < TVNORMS; i++)
1516                         if (id & tvnorms[i].id)
1517                                 break;
1518         if (i == TVNORMS)
1519                 return -EINVAL;
1520
1521         if ((id & V4L2_STD_SECAM) && (secam[0] != '-')) {
1522                 if (secam[0] == 'L' || secam[0] == 'l') {
1523                         if (secam[1] == 'C' || secam[1] == 'c')
1524                                 fixup = V4L2_STD_SECAM_LC;
1525                         else
1526                                 fixup = V4L2_STD_SECAM_L;
1527                 } else {
1528                         if (secam[0] == 'D' || secam[0] == 'd')
1529                                 fixup = V4L2_STD_SECAM_DK;
1530                         else
1531                                 fixup = V4L2_STD_SECAM;
1532                 }
1533                 for (i = 0; i < TVNORMS; i++) {
1534                         if (fixup == tvnorms[i].id)
1535                                 break;
1536                 }
1537                 if (i == TVNORMS)
1538                         return -EINVAL;
1539         }
1540
1541         id = tvnorms[i].id;
1542
1543         if (!is_empress(file) && fh == dev->overlay_owner) {
1544                 spin_lock_irqsave(&dev->slock, flags);
1545                 stop_preview(dev);
1546                 spin_unlock_irqrestore(&dev->slock, flags);
1547
1548                 set_tvnorm(dev, &tvnorms[i]);
1549
1550                 spin_lock_irqsave(&dev->slock, flags);
1551                 start_preview(dev);
1552                 spin_unlock_irqrestore(&dev->slock, flags);
1553         } else
1554                 set_tvnorm(dev, &tvnorms[i]);
1555
1556         saa7134_tvaudio_do_scan(dev);
1557         return 0;
1558 }
1559 EXPORT_SYMBOL_GPL(saa7134_s_std);
1560
1561 int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id)
1562 {
1563         struct saa7134_dev *dev = video_drvdata(file);
1564
1565         *id = dev->tvnorm->id;
1566         return 0;
1567 }
1568 EXPORT_SYMBOL_GPL(saa7134_g_std);
1569
1570 static v4l2_std_id saa7134_read_std(struct saa7134_dev *dev)
1571 {
1572         static v4l2_std_id stds[] = {
1573                 V4L2_STD_UNKNOWN,
1574                 V4L2_STD_NTSC,
1575                 V4L2_STD_PAL,
1576                 V4L2_STD_SECAM };
1577
1578         v4l2_std_id result = 0;
1579
1580         u8 st1 = saa_readb(SAA7134_STATUS_VIDEO1);
1581         u8 st2 = saa_readb(SAA7134_STATUS_VIDEO2);
1582
1583         if (!(st2 & 0x1)) /* RDCAP == 0 */
1584                 result = V4L2_STD_UNKNOWN;
1585         else
1586                 result = stds[st1 & 0x03];
1587
1588         return result;
1589 }
1590
1591 int saa7134_querystd(struct file *file, void *priv, v4l2_std_id *std)
1592 {
1593         struct saa7134_dev *dev = video_drvdata(file);
1594         *std &= saa7134_read_std(dev);
1595         return 0;
1596 }
1597 EXPORT_SYMBOL_GPL(saa7134_querystd);
1598
1599 static int saa7134_g_pixelaspect(struct file *file, void *priv,
1600                                  int type, struct v4l2_fract *f)
1601 {
1602         struct saa7134_dev *dev = video_drvdata(file);
1603
1604         if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1605             type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1606                 return -EINVAL;
1607
1608         if (dev->tvnorm->id & V4L2_STD_525_60) {
1609                 f->numerator   = 11;
1610                 f->denominator = 10;
1611         }
1612         if (dev->tvnorm->id & V4L2_STD_625_50) {
1613                 f->numerator   = 54;
1614                 f->denominator = 59;
1615         }
1616         return 0;
1617 }
1618
1619 static int saa7134_g_selection(struct file *file, void *f, struct v4l2_selection *sel)
1620 {
1621         struct saa7134_dev *dev = video_drvdata(file);
1622
1623         if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1624             sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1625                 return -EINVAL;
1626
1627         switch (sel->target) {
1628         case V4L2_SEL_TGT_CROP:
1629                 sel->r = dev->crop_current;
1630                 break;
1631         case V4L2_SEL_TGT_CROP_DEFAULT:
1632                 sel->r = dev->crop_defrect;
1633                 break;
1634         case V4L2_SEL_TGT_CROP_BOUNDS:
1635                 sel->r  = dev->crop_bounds;
1636                 break;
1637         default:
1638                 return -EINVAL;
1639         }
1640         return 0;
1641 }
1642
1643 static int saa7134_s_selection(struct file *file, void *f, struct v4l2_selection *sel)
1644 {
1645         struct saa7134_dev *dev = video_drvdata(file);
1646         struct v4l2_rect *b = &dev->crop_bounds;
1647         struct v4l2_rect *c = &dev->crop_current;
1648
1649         if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1650             sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1651                 return -EINVAL;
1652
1653         if (sel->target != V4L2_SEL_TGT_CROP)
1654                 return -EINVAL;
1655
1656         if (dev->overlay_owner)
1657                 return -EBUSY;
1658         if (vb2_is_streaming(&dev->video_vbq))
1659                 return -EBUSY;
1660
1661         *c = sel->r;
1662         if (c->top < b->top)
1663                 c->top = b->top;
1664         if (c->top > b->top + b->height)
1665                 c->top = b->top + b->height;
1666         if (c->height > b->top - c->top + b->height)
1667                 c->height = b->top - c->top + b->height;
1668
1669         if (c->left < b->left)
1670                 c->left = b->left;
1671         if (c->left > b->left + b->width)
1672                 c->left = b->left + b->width;
1673         if (c->width > b->left - c->left + b->width)
1674                 c->width = b->left - c->left + b->width;
1675         sel->r = *c;
1676         return 0;
1677 }
1678
1679 int saa7134_g_tuner(struct file *file, void *priv,
1680                                         struct v4l2_tuner *t)
1681 {
1682         struct saa7134_dev *dev = video_drvdata(file);
1683         int n;
1684
1685         if (0 != t->index)
1686                 return -EINVAL;
1687         memset(t, 0, sizeof(*t));
1688         for (n = 0; n < SAA7134_INPUT_MAX; n++) {
1689                 if (card_in(dev, n).type == SAA7134_INPUT_TV ||
1690                     card_in(dev, n).type == SAA7134_INPUT_TV_MONO)
1691                         break;
1692         }
1693         if (n == SAA7134_INPUT_MAX)
1694                 return -EINVAL;
1695         if (card_in(dev, n).type != SAA7134_NO_INPUT) {
1696                 strscpy(t->name, "Television", sizeof(t->name));
1697                 t->type = V4L2_TUNER_ANALOG_TV;
1698                 saa_call_all(dev, tuner, g_tuner, t);
1699                 t->capability = V4L2_TUNER_CAP_NORM |
1700                         V4L2_TUNER_CAP_STEREO |
1701                         V4L2_TUNER_CAP_LANG1 |
1702                         V4L2_TUNER_CAP_LANG2;
1703                 t->rxsubchans = saa7134_tvaudio_getstereo(dev);
1704                 t->audmode = saa7134_tvaudio_rx2mode(t->rxsubchans);
1705         }
1706         if (0 != (saa_readb(SAA7134_STATUS_VIDEO1) & 0x03))
1707                 t->signal = 0xffff;
1708         return 0;
1709 }
1710 EXPORT_SYMBOL_GPL(saa7134_g_tuner);
1711
1712 int saa7134_s_tuner(struct file *file, void *priv,
1713                                         const struct v4l2_tuner *t)
1714 {
1715         struct saa7134_dev *dev = video_drvdata(file);
1716         int rx, mode;
1717
1718         if (0 != t->index)
1719                 return -EINVAL;
1720
1721         mode = dev->thread.mode;
1722         if (UNSET == mode) {
1723                 rx   = saa7134_tvaudio_getstereo(dev);
1724                 mode = saa7134_tvaudio_rx2mode(rx);
1725         }
1726         if (mode != t->audmode)
1727                 dev->thread.mode = t->audmode;
1728
1729         return 0;
1730 }
1731 EXPORT_SYMBOL_GPL(saa7134_s_tuner);
1732
1733 int saa7134_g_frequency(struct file *file, void *priv,
1734                                         struct v4l2_frequency *f)
1735 {
1736         struct saa7134_dev *dev = video_drvdata(file);
1737
1738         if (0 != f->tuner)
1739                 return -EINVAL;
1740
1741         saa_call_all(dev, tuner, g_frequency, f);
1742
1743         return 0;
1744 }
1745 EXPORT_SYMBOL_GPL(saa7134_g_frequency);
1746
1747 int saa7134_s_frequency(struct file *file, void *priv,
1748                                         const struct v4l2_frequency *f)
1749 {
1750         struct saa7134_dev *dev = video_drvdata(file);
1751
1752         if (0 != f->tuner)
1753                 return -EINVAL;
1754
1755         saa_call_all(dev, tuner, s_frequency, f);
1756
1757         saa7134_tvaudio_do_scan(dev);
1758         return 0;
1759 }
1760 EXPORT_SYMBOL_GPL(saa7134_s_frequency);
1761
1762 static int saa7134_enum_fmt_vid_cap(struct file *file, void  *priv,
1763                                         struct v4l2_fmtdesc *f)
1764 {
1765         if (f->index >= FORMATS)
1766                 return -EINVAL;
1767
1768         f->pixelformat = formats[f->index].fourcc;
1769
1770         return 0;
1771 }
1772
1773 static int saa7134_enum_fmt_vid_overlay(struct file *file, void  *priv,
1774                                         struct v4l2_fmtdesc *f)
1775 {
1776         if (saa7134_no_overlay > 0) {
1777                 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1778                 return -EINVAL;
1779         }
1780
1781         if ((f->index >= FORMATS) || formats[f->index].planar)
1782                 return -EINVAL;
1783
1784         f->pixelformat = formats[f->index].fourcc;
1785
1786         return 0;
1787 }
1788
1789 static int saa7134_g_fbuf(struct file *file, void *f,
1790                                 struct v4l2_framebuffer *fb)
1791 {
1792         struct saa7134_dev *dev = video_drvdata(file);
1793
1794         *fb = dev->ovbuf;
1795         fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
1796
1797         return 0;
1798 }
1799
1800 static int saa7134_s_fbuf(struct file *file, void *f,
1801                                         const struct v4l2_framebuffer *fb)
1802 {
1803         struct saa7134_dev *dev = video_drvdata(file);
1804         struct saa7134_format *fmt;
1805
1806         if (!capable(CAP_SYS_ADMIN) &&
1807            !capable(CAP_SYS_RAWIO))
1808                 return -EPERM;
1809
1810         /* check args */
1811         fmt = format_by_fourcc(fb->fmt.pixelformat);
1812         if (NULL == fmt)
1813                 return -EINVAL;
1814
1815         /* ok, accept it */
1816         dev->ovbuf = *fb;
1817         dev->ovfmt = fmt;
1818         if (0 == dev->ovbuf.fmt.bytesperline)
1819                 dev->ovbuf.fmt.bytesperline =
1820                         dev->ovbuf.fmt.width*fmt->depth/8;
1821         return 0;
1822 }
1823
1824 static int saa7134_overlay(struct file *file, void *priv, unsigned int on)
1825 {
1826         struct saa7134_dev *dev = video_drvdata(file);
1827         unsigned long flags;
1828
1829         if (on) {
1830                 if (saa7134_no_overlay > 0) {
1831                         video_dbg("no_overlay\n");
1832                         return -EINVAL;
1833                 }
1834
1835                 if (dev->overlay_owner && priv != dev->overlay_owner)
1836                         return -EBUSY;
1837                 dev->overlay_owner = priv;
1838                 spin_lock_irqsave(&dev->slock, flags);
1839                 start_preview(dev);
1840                 spin_unlock_irqrestore(&dev->slock, flags);
1841         }
1842         if (!on) {
1843                 if (priv != dev->overlay_owner)
1844                         return -EINVAL;
1845                 spin_lock_irqsave(&dev->slock, flags);
1846                 stop_preview(dev);
1847                 spin_unlock_irqrestore(&dev->slock, flags);
1848                 dev->overlay_owner = NULL;
1849         }
1850         return 0;
1851 }
1852
1853 #ifdef CONFIG_VIDEO_ADV_DEBUG
1854 static int vidioc_g_register (struct file *file, void *priv,
1855                               struct v4l2_dbg_register *reg)
1856 {
1857         struct saa7134_dev *dev = video_drvdata(file);
1858
1859         reg->val = saa_readb(reg->reg & 0xffffff);
1860         reg->size = 1;
1861         return 0;
1862 }
1863
1864 static int vidioc_s_register (struct file *file, void *priv,
1865                                 const struct v4l2_dbg_register *reg)
1866 {
1867         struct saa7134_dev *dev = video_drvdata(file);
1868
1869         saa_writeb(reg->reg & 0xffffff, reg->val);
1870         return 0;
1871 }
1872 #endif
1873
1874 static int radio_g_tuner(struct file *file, void *priv,
1875                                         struct v4l2_tuner *t)
1876 {
1877         struct saa7134_dev *dev = video_drvdata(file);
1878
1879         if (0 != t->index)
1880                 return -EINVAL;
1881
1882         strscpy(t->name, "Radio", sizeof(t->name));
1883
1884         saa_call_all(dev, tuner, g_tuner, t);
1885         t->audmode &= V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO;
1886         if (dev->input->amux == TV) {
1887                 t->signal = 0xf800 - ((saa_readb(0x581) & 0x1f) << 11);
1888                 t->rxsubchans = (saa_readb(0x529) & 0x08) ?
1889                                 V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
1890         }
1891         return 0;
1892 }
1893 static int radio_s_tuner(struct file *file, void *priv,
1894                                         const struct v4l2_tuner *t)
1895 {
1896         struct saa7134_dev *dev = video_drvdata(file);
1897
1898         if (0 != t->index)
1899                 return -EINVAL;
1900
1901         saa_call_all(dev, tuner, s_tuner, t);
1902         return 0;
1903 }
1904
1905 static const struct v4l2_file_operations video_fops =
1906 {
1907         .owner    = THIS_MODULE,
1908         .open     = video_open,
1909         .release  = video_release,
1910         .read     = vb2_fop_read,
1911         .poll     = vb2_fop_poll,
1912         .mmap     = vb2_fop_mmap,
1913         .unlocked_ioctl   = video_ioctl2,
1914 };
1915
1916 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1917         .vidioc_querycap                = saa7134_querycap,
1918         .vidioc_enum_fmt_vid_cap        = saa7134_enum_fmt_vid_cap,
1919         .vidioc_g_fmt_vid_cap           = saa7134_g_fmt_vid_cap,
1920         .vidioc_try_fmt_vid_cap         = saa7134_try_fmt_vid_cap,
1921         .vidioc_s_fmt_vid_cap           = saa7134_s_fmt_vid_cap,
1922         .vidioc_enum_fmt_vid_overlay    = saa7134_enum_fmt_vid_overlay,
1923         .vidioc_g_fmt_vid_overlay       = saa7134_g_fmt_vid_overlay,
1924         .vidioc_try_fmt_vid_overlay     = saa7134_try_fmt_vid_overlay,
1925         .vidioc_s_fmt_vid_overlay       = saa7134_s_fmt_vid_overlay,
1926         .vidioc_g_fmt_vbi_cap           = saa7134_try_get_set_fmt_vbi_cap,
1927         .vidioc_try_fmt_vbi_cap         = saa7134_try_get_set_fmt_vbi_cap,
1928         .vidioc_s_fmt_vbi_cap           = saa7134_try_get_set_fmt_vbi_cap,
1929         .vidioc_g_pixelaspect           = saa7134_g_pixelaspect,
1930         .vidioc_reqbufs                 = vb2_ioctl_reqbufs,
1931         .vidioc_querybuf                = vb2_ioctl_querybuf,
1932         .vidioc_qbuf                    = vb2_ioctl_qbuf,
1933         .vidioc_dqbuf                   = vb2_ioctl_dqbuf,
1934         .vidioc_expbuf                  = vb2_ioctl_expbuf,
1935         .vidioc_s_std                   = saa7134_s_std,
1936         .vidioc_g_std                   = saa7134_g_std,
1937         .vidioc_querystd                = saa7134_querystd,
1938         .vidioc_enum_input              = saa7134_enum_input,
1939         .vidioc_g_input                 = saa7134_g_input,
1940         .vidioc_s_input                 = saa7134_s_input,
1941         .vidioc_streamon                = vb2_ioctl_streamon,
1942         .vidioc_streamoff               = vb2_ioctl_streamoff,
1943         .vidioc_g_tuner                 = saa7134_g_tuner,
1944         .vidioc_s_tuner                 = saa7134_s_tuner,
1945         .vidioc_g_selection             = saa7134_g_selection,
1946         .vidioc_s_selection             = saa7134_s_selection,
1947         .vidioc_g_fbuf                  = saa7134_g_fbuf,
1948         .vidioc_s_fbuf                  = saa7134_s_fbuf,
1949         .vidioc_overlay                 = saa7134_overlay,
1950         .vidioc_g_frequency             = saa7134_g_frequency,
1951         .vidioc_s_frequency             = saa7134_s_frequency,
1952 #ifdef CONFIG_VIDEO_ADV_DEBUG
1953         .vidioc_g_register              = vidioc_g_register,
1954         .vidioc_s_register              = vidioc_s_register,
1955 #endif
1956         .vidioc_log_status              = v4l2_ctrl_log_status,
1957         .vidioc_subscribe_event         = v4l2_ctrl_subscribe_event,
1958         .vidioc_unsubscribe_event       = v4l2_event_unsubscribe,
1959 };
1960
1961 static const struct v4l2_file_operations radio_fops = {
1962         .owner    = THIS_MODULE,
1963         .open     = video_open,
1964         .read     = radio_read,
1965         .release  = video_release,
1966         .unlocked_ioctl = video_ioctl2,
1967         .poll     = radio_poll,
1968 };
1969
1970 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1971         .vidioc_querycap        = saa7134_querycap,
1972         .vidioc_g_tuner         = radio_g_tuner,
1973         .vidioc_s_tuner         = radio_s_tuner,
1974         .vidioc_g_frequency     = saa7134_g_frequency,
1975         .vidioc_s_frequency     = saa7134_s_frequency,
1976         .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1977         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1978 };
1979
1980 /* ----------------------------------------------------------- */
1981 /* exported stuff                                              */
1982
1983 struct video_device saa7134_video_template = {
1984         .name                           = "saa7134-video",
1985         .fops                           = &video_fops,
1986         .ioctl_ops                      = &video_ioctl_ops,
1987         .tvnorms                        = SAA7134_NORMS,
1988 };
1989
1990 struct video_device saa7134_radio_template = {
1991         .name                   = "saa7134-radio",
1992         .fops                   = &radio_fops,
1993         .ioctl_ops              = &radio_ioctl_ops,
1994 };
1995
1996 static const struct v4l2_ctrl_ops saa7134_ctrl_ops = {
1997         .s_ctrl = saa7134_s_ctrl,
1998 };
1999
2000 static const struct v4l2_ctrl_config saa7134_ctrl_invert = {
2001         .ops = &saa7134_ctrl_ops,
2002         .id = V4L2_CID_PRIVATE_INVERT,
2003         .name = "Invert",
2004         .type = V4L2_CTRL_TYPE_BOOLEAN,
2005         .min = 0,
2006         .max = 1,
2007         .step = 1,
2008 };
2009
2010 static const struct v4l2_ctrl_config saa7134_ctrl_y_odd = {
2011         .ops = &saa7134_ctrl_ops,
2012         .id = V4L2_CID_PRIVATE_Y_ODD,
2013         .name = "Y Offset Odd Field",
2014         .type = V4L2_CTRL_TYPE_INTEGER,
2015         .min = 0,
2016         .max = 128,
2017         .step = 1,
2018 };
2019
2020 static const struct v4l2_ctrl_config saa7134_ctrl_y_even = {
2021         .ops = &saa7134_ctrl_ops,
2022         .id = V4L2_CID_PRIVATE_Y_EVEN,
2023         .name = "Y Offset Even Field",
2024         .type = V4L2_CTRL_TYPE_INTEGER,
2025         .min = 0,
2026         .max = 128,
2027         .step = 1,
2028 };
2029
2030 static const struct v4l2_ctrl_config saa7134_ctrl_automute = {
2031         .ops = &saa7134_ctrl_ops,
2032         .id = V4L2_CID_PRIVATE_AUTOMUTE,
2033         .name = "Automute",
2034         .type = V4L2_CTRL_TYPE_BOOLEAN,
2035         .min = 0,
2036         .max = 1,
2037         .step = 1,
2038         .def = 1,
2039 };
2040
2041 int saa7134_video_init1(struct saa7134_dev *dev)
2042 {
2043         struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler;
2044         struct vb2_queue *q;
2045         int ret;
2046
2047         /* sanitycheck insmod options */
2048         if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
2049                 gbuffers = 2;
2050         if (gbufsize > gbufsize_max)
2051                 gbufsize = gbufsize_max;
2052         gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
2053
2054         v4l2_ctrl_handler_init(hdl, 11);
2055         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2056                         V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
2057         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2058                         V4L2_CID_CONTRAST, 0, 127, 1, 68);
2059         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2060                         V4L2_CID_SATURATION, 0, 127, 1, 64);
2061         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2062                         V4L2_CID_HUE, -128, 127, 1, 0);
2063         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2064                         V4L2_CID_HFLIP, 0, 1, 1, 0);
2065         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2066                         V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
2067         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2068                         V4L2_CID_AUDIO_VOLUME, -15, 15, 1, 0);
2069         v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_invert, NULL);
2070         v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_odd, NULL);
2071         v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_even, NULL);
2072         v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_automute, NULL);
2073         if (hdl->error)
2074                 return hdl->error;
2075         if (card_has_radio(dev)) {
2076                 hdl = &dev->radio_ctrl_handler;
2077                 v4l2_ctrl_handler_init(hdl, 2);
2078                 v4l2_ctrl_add_handler(hdl, &dev->ctrl_handler,
2079                                 v4l2_ctrl_radio_filter, false);
2080                 if (hdl->error)
2081                         return hdl->error;
2082         }
2083         dev->ctl_mute       = 1;
2084
2085         if (dev->tda9887_conf && saa7134_ctrl_automute.def)
2086                 dev->tda9887_conf |= TDA9887_AUTOMUTE;
2087         dev->automute       = 0;
2088
2089         INIT_LIST_HEAD(&dev->video_q.queue);
2090         timer_setup(&dev->video_q.timeout, saa7134_buffer_timeout, 0);
2091         dev->video_q.dev              = dev;
2092         dev->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
2093         dev->width    = 720;
2094         dev->height   = 576;
2095         dev->field = V4L2_FIELD_INTERLACED;
2096         dev->win.w.width = dev->width;
2097         dev->win.w.height = dev->height;
2098         dev->win.field = V4L2_FIELD_INTERLACED;
2099         dev->ovbuf.fmt.width = dev->width;
2100         dev->ovbuf.fmt.height = dev->height;
2101         dev->ovbuf.fmt.pixelformat = dev->fmt->fourcc;
2102         dev->ovbuf.fmt.colorspace = V4L2_COLORSPACE_SMPTE170M;
2103
2104         if (saa7134_boards[dev->board].video_out)
2105                 saa7134_videoport_init(dev);
2106
2107         q = &dev->video_vbq;
2108         q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2109         /*
2110          * Do not add VB2_USERPTR unless explicitly requested: the saa7134 DMA
2111          * engine cannot handle transfers that do not start at the beginning
2112          * of a page. A user-provided pointer can start anywhere in a page, so
2113          * USERPTR support is a no-go unless the application knows about these
2114          * limitations and has special support for this.
2115          */
2116         q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
2117         if (saa7134_userptr)
2118                 q->io_modes |= VB2_USERPTR;
2119         q->drv_priv = &dev->video_q;
2120         q->ops = &vb2_qops;
2121         q->gfp_flags = GFP_DMA32;
2122         q->mem_ops = &vb2_dma_sg_memops;
2123         q->buf_struct_size = sizeof(struct saa7134_buf);
2124         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2125         q->lock = &dev->lock;
2126         q->dev = &dev->pci->dev;
2127         ret = vb2_queue_init(q);
2128         if (ret)
2129                 return ret;
2130         saa7134_pgtable_alloc(dev->pci, &dev->video_q.pt);
2131
2132         q = &dev->vbi_vbq;
2133         q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
2134         /* Don't add VB2_USERPTR, see comment above */
2135         q->io_modes = VB2_MMAP | VB2_READ;
2136         if (saa7134_userptr)
2137                 q->io_modes |= VB2_USERPTR;
2138         q->drv_priv = &dev->vbi_q;
2139         q->ops = &saa7134_vbi_qops;
2140         q->gfp_flags = GFP_DMA32;
2141         q->mem_ops = &vb2_dma_sg_memops;
2142         q->buf_struct_size = sizeof(struct saa7134_buf);
2143         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2144         q->lock = &dev->lock;
2145         q->dev = &dev->pci->dev;
2146         ret = vb2_queue_init(q);
2147         if (ret)
2148                 return ret;
2149         saa7134_pgtable_alloc(dev->pci, &dev->vbi_q.pt);
2150
2151         return 0;
2152 }
2153
2154 void saa7134_video_fini(struct saa7134_dev *dev)
2155 {
2156         /* free stuff */
2157         saa7134_pgtable_free(dev->pci, &dev->video_q.pt);
2158         saa7134_pgtable_free(dev->pci, &dev->vbi_q.pt);
2159         v4l2_ctrl_handler_free(&dev->ctrl_handler);
2160         if (card_has_radio(dev))
2161                 v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
2162 }
2163
2164 int saa7134_videoport_init(struct saa7134_dev *dev)
2165 {
2166         /* enable video output */
2167         int vo = saa7134_boards[dev->board].video_out;
2168         int video_reg;
2169         unsigned int vid_port_opts = saa7134_boards[dev->board].vid_port_opts;
2170
2171         /* Configure videoport */
2172         saa_writeb(SAA7134_VIDEO_PORT_CTRL0, video_out[vo][0]);
2173         video_reg = video_out[vo][1];
2174         if (vid_port_opts & SET_T_CODE_POLARITY_NON_INVERTED)
2175                 video_reg &= ~VP_T_CODE_P_INVERTED;
2176         saa_writeb(SAA7134_VIDEO_PORT_CTRL1, video_reg);
2177         saa_writeb(SAA7134_VIDEO_PORT_CTRL2, video_out[vo][2]);
2178         saa_writeb(SAA7134_VIDEO_PORT_CTRL4, video_out[vo][4]);
2179         video_reg = video_out[vo][5];
2180         if (vid_port_opts & SET_CLOCK_NOT_DELAYED)
2181                 video_reg &= ~VP_CLK_CTRL2_DELAYED;
2182         if (vid_port_opts & SET_CLOCK_INVERTED)
2183                 video_reg |= VP_CLK_CTRL1_INVERTED;
2184         saa_writeb(SAA7134_VIDEO_PORT_CTRL5, video_reg);
2185         video_reg = video_out[vo][6];
2186         if (vid_port_opts & SET_VSYNC_OFF) {
2187                 video_reg &= ~VP_VS_TYPE_MASK;
2188                 video_reg |= VP_VS_TYPE_OFF;
2189         }
2190         saa_writeb(SAA7134_VIDEO_PORT_CTRL6, video_reg);
2191         saa_writeb(SAA7134_VIDEO_PORT_CTRL7, video_out[vo][7]);
2192         saa_writeb(SAA7134_VIDEO_PORT_CTRL8, video_out[vo][8]);
2193
2194         /* Start videoport */
2195         saa_writeb(SAA7134_VIDEO_PORT_CTRL3, video_out[vo][3]);
2196
2197         return 0;
2198 }
2199
2200 int saa7134_video_init2(struct saa7134_dev *dev)
2201 {
2202         /* init video hw */
2203         set_tvnorm(dev,&tvnorms[0]);
2204         video_mux(dev,0);
2205         v4l2_ctrl_handler_setup(&dev->ctrl_handler);
2206         saa7134_tvaudio_setmute(dev);
2207         saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
2208         return 0;
2209 }
2210
2211 void saa7134_irq_video_signalchange(struct saa7134_dev *dev)
2212 {
2213         static const char *st[] = {
2214                 "(no signal)", "NTSC", "PAL", "SECAM" };
2215         u32 st1,st2;
2216
2217         st1 = saa_readb(SAA7134_STATUS_VIDEO1);
2218         st2 = saa_readb(SAA7134_STATUS_VIDEO2);
2219         video_dbg("DCSDT: pll: %s, sync: %s, norm: %s\n",
2220                 (st1 & 0x40) ? "not locked" : "locked",
2221                 (st2 & 0x40) ? "no"         : "yes",
2222                 st[st1 & 0x03]);
2223         dev->nosignal = (st1 & 0x40) || (st2 & 0x40)  || !(st2 & 0x1);
2224
2225         if (dev->nosignal) {
2226                 /* no video signal -> mute audio */
2227                 if (dev->ctl_automute)
2228                         dev->automute = 1;
2229                 saa7134_tvaudio_setmute(dev);
2230         } else {
2231                 /* wake up tvaudio audio carrier scan thread */
2232                 saa7134_tvaudio_do_scan(dev);
2233         }
2234
2235         if ((st2 & 0x80) && !noninterlaced && !dev->nosignal)
2236                 saa_clearb(SAA7134_SYNC_CTRL, 0x20);
2237         else
2238                 saa_setb(SAA7134_SYNC_CTRL, 0x20);
2239
2240         if (dev->mops && dev->mops->signal_change)
2241                 dev->mops->signal_change(dev);
2242 }
2243
2244
2245 void saa7134_irq_video_done(struct saa7134_dev *dev, unsigned long status)
2246 {
2247         enum v4l2_field field;
2248
2249         spin_lock(&dev->slock);
2250         if (dev->video_q.curr) {
2251                 field = dev->field;
2252                 if (V4L2_FIELD_HAS_BOTH(field)) {
2253                         /* make sure we have seen both fields */
2254                         if ((status & 0x10) == 0x00) {
2255                                 dev->video_q.curr->top_seen = 1;
2256                                 goto done;
2257                         }
2258                         if (!dev->video_q.curr->top_seen)
2259                                 goto done;
2260                 } else if (field == V4L2_FIELD_TOP) {
2261                         if ((status & 0x10) != 0x10)
2262                                 goto done;
2263                 } else if (field == V4L2_FIELD_BOTTOM) {
2264                         if ((status & 0x10) != 0x00)
2265                                 goto done;
2266                 }
2267                 saa7134_buffer_finish(dev, &dev->video_q, VB2_BUF_STATE_DONE);
2268         }
2269         saa7134_buffer_next(dev, &dev->video_q);
2270
2271  done:
2272         spin_unlock(&dev->slock);
2273 }