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; /* 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                         swap(base2, base3);
 873                 video_dbg("uv: bpl=%ld lines=%ld base2/3=%ld/%ld\n",
 874                         bpl_uv,lines_uv,base2,base3);
 875                 if (V4L2_FIELD_HAS_BOTH(dev->field)) {
 876                         /* interlaced */
 877                         saa_writel(SAA7134_RS_BA1(4),base2);
 878                         saa_writel(SAA7134_RS_BA2(4),base2+bpl_uv);
 879                         saa_writel(SAA7134_RS_PITCH(4),bpl_uv*2);
 880                         saa_writel(SAA7134_RS_BA1(5),base3);
 881                         saa_writel(SAA7134_RS_BA2(5),base3+bpl_uv);
 882                         saa_writel(SAA7134_RS_PITCH(5),bpl_uv*2);
 883                 } else {
 884                         /* non-interlaced */
 885                         saa_writel(SAA7134_RS_BA1(4),base2);
 886                         saa_writel(SAA7134_RS_BA2(4),base2);
 887                         saa_writel(SAA7134_RS_PITCH(4),bpl_uv);
 888                         saa_writel(SAA7134_RS_BA1(5),base3);
 889                         saa_writel(SAA7134_RS_BA2(5),base3);
 890                         saa_writel(SAA7134_RS_PITCH(5),bpl_uv);
 891                 }
 892                 saa_writel(SAA7134_RS_CONTROL(4),control);
 893                 saa_writel(SAA7134_RS_CONTROL(5),control);
 894         }
 895
 896         /* start DMA */
 897         saa7134_set_dmabits(dev);
 898         mod_timer(&dmaq->timeout, jiffies + BUFFER_TIMEOUT);
 899         return 0;
 900 }
 901
 902 static int buffer_init(struct vb2_buffer *vb2)
 903 {
 904         struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
 905         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
 906         struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 907
 908         dmaq->curr = NULL;
 909         buf->activate = buffer_activate;
 910         return 0;
 911 }
 912
 913 static int buffer_prepare(struct vb2_buffer *vb2)
 914 {
 915         struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
 916         struct saa7134_dev *dev = dmaq->dev;
 917         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
 918         struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 919         struct sg_table *dma = vb2_dma_sg_plane_desc(vb2, 0);
 920         unsigned int size;
 921
 922         if (dma->sgl->offset) {
 923                 pr_err("The buffer is not page-aligned\n");
 924                 return -EINVAL;
 925         }
 926         size = (dev->width * dev->height * dev->fmt->depth) >> 3;
 927         if (vb2_plane_size(vb2, 0) < size)
 928                 return -EINVAL;
 929
 930         vb2_set_plane_payload(vb2, 0, size);
 931         vbuf->field = dev->field;
 932
 933         return saa7134_pgtable_build(dev->pci, &dmaq->pt, dma->sgl, dma->nents,
 934                                     saa7134_buffer_startpage(buf));
 935 }
 936
 937 static int queue_setup(struct vb2_queue *q,
 938                            unsigned int *nbuffers, unsigned int *nplanes,
 939                            unsigned int sizes[], struct device *alloc_devs[])
 940 {
 941         struct saa7134_dmaqueue *dmaq = q->drv_priv;
 942         struct saa7134_dev *dev = dmaq->dev;
 943         int size = dev->fmt->depth * dev->width * dev->height >> 3;
 944
 945         if (dev->width    < 48 ||
 946             dev->height   < 32 ||
 947             dev->width/4  > dev->crop_current.width  ||
 948             dev->height/4 > dev->crop_current.height ||
 949             dev->width    > dev->crop_bounds.width  ||
 950             dev->height   > dev->crop_bounds.height)
 951                 return -EINVAL;
 952
 953         *nbuffers = saa7134_buffer_count(size, *nbuffers);
 954         *nplanes = 1;
 955         sizes[0] = size;
 956
 957         saa7134_enable_analog_tuner(dev);
 958
 959         return 0;
 960 }
 961
 962 /*
 963  * move buffer to hardware queue
 964  */
 965 void saa7134_vb2_buffer_queue(struct vb2_buffer *vb)
 966 {
 967         struct saa7134_dmaqueue *dmaq = vb->vb2_queue->drv_priv;
 968         struct saa7134_dev *dev = dmaq->dev;
 969         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 970         struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 971
 972         saa7134_buffer_queue(dev, dmaq, buf);
 973 }
 974 EXPORT_SYMBOL_GPL(saa7134_vb2_buffer_queue);
 975
 976 int saa7134_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
 977 {
 978         struct saa7134_dmaqueue *dmaq = vq->drv_priv;
 979         struct saa7134_dev *dev = dmaq->dev;
 980
 981         /*
 982          * Planar video capture and TS share the same DMA channel,
 983          * so only one can be active at a time.
 984          */
 985         if (card_is_empress(dev) && vb2_is_busy(&dev->empress_vbq) &&
 986             dmaq == &dev->video_q && dev->fmt->planar) {
 987                 struct saa7134_buf *buf, *tmp;
 988
 989                 list_for_each_entry_safe(buf, tmp, &dmaq->queue, entry) {
 990                         list_del(&buf->entry);
 991                         vb2_buffer_done(&buf->vb2.vb2_buf,
 992                                         VB2_BUF_STATE_QUEUED);
 993                 }
 994                 if (dmaq->curr) {
 995                         vb2_buffer_done(&dmaq->curr->vb2.vb2_buf,
 996                                         VB2_BUF_STATE_QUEUED);
 997                         dmaq->curr = NULL;
 998                 }
 999                 return -EBUSY;
1000         }
1001
1002         /* The SAA7134 has a 1K FIFO; the datasheet suggests that when
1003          * configured conservatively, there's 22 usec of buffering for video.
1004          * We therefore request a DMA latency of 20 usec, giving us 2 usec of
1005          * margin in case the FIFO is configured differently to the datasheet.
1006          * Unfortunately, I lack register-level documentation to check the
1007          * Linux FIFO setup and confirm the perfect value.
1008          */
1009         if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
1010             (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
1011                 cpu_latency_qos_add_request(&dev->qos_request, 20);
1012         dmaq->seq_nr = 0;
1013
1014         return 0;
1015 }
1016
1017 void saa7134_vb2_stop_streaming(struct vb2_queue *vq)
1018 {
1019         struct saa7134_dmaqueue *dmaq = vq->drv_priv;
1020         struct saa7134_dev *dev = dmaq->dev;
1021
1022         saa7134_stop_streaming(dev, dmaq);
1023
1024         if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
1025             (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
1026                 cpu_latency_qos_remove_request(&dev->qos_request);
1027 }
1028
1029 static const struct vb2_ops vb2_qops = {
1030         .queue_setup    = queue_setup,
1031         .buf_init       = buffer_init,
1032         .buf_prepare    = buffer_prepare,
1033         .buf_queue      = saa7134_vb2_buffer_queue,
1034         .wait_prepare   = vb2_ops_wait_prepare,
1035         .wait_finish    = vb2_ops_wait_finish,
1036         .start_streaming = saa7134_vb2_start_streaming,
1037         .stop_streaming = saa7134_vb2_stop_streaming,
1038 };
1039
1040 /* ------------------------------------------------------------------ */
1041
1042 static int saa7134_s_ctrl(struct v4l2_ctrl *ctrl)
1043 {
1044         struct saa7134_dev *dev = container_of(ctrl->handler, struct saa7134_dev, ctrl_handler);
1045         unsigned long flags;
1046         int restart_overlay = 0;
1047
1048         switch (ctrl->id) {
1049         case V4L2_CID_BRIGHTNESS:
1050                 dev->ctl_bright = ctrl->val;
1051                 saa_writeb(SAA7134_DEC_LUMA_BRIGHT, ctrl->val);
1052                 break;
1053         case V4L2_CID_HUE:
1054                 dev->ctl_hue = ctrl->val;
1055                 saa_writeb(SAA7134_DEC_CHROMA_HUE, ctrl->val);
1056                 break;
1057         case V4L2_CID_CONTRAST:
1058                 dev->ctl_contrast = ctrl->val;
1059                 saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1060                            dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1061                 break;
1062         case V4L2_CID_SATURATION:
1063                 dev->ctl_saturation = ctrl->val;
1064                 saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1065                            dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1066                 break;
1067         case V4L2_CID_AUDIO_MUTE:
1068                 dev->ctl_mute = ctrl->val;
1069                 saa7134_tvaudio_setmute(dev);
1070                 break;
1071         case V4L2_CID_AUDIO_VOLUME:
1072                 dev->ctl_volume = ctrl->val;
1073                 saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
1074                 break;
1075         case V4L2_CID_PRIVATE_INVERT:
1076                 dev->ctl_invert = ctrl->val;
1077                 saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1078                            dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1079                 saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1080                            dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1081                 break;
1082         case V4L2_CID_HFLIP:
1083                 dev->ctl_mirror = ctrl->val;
1084                 restart_overlay = 1;
1085                 break;
1086         case V4L2_CID_PRIVATE_Y_EVEN:
1087                 dev->ctl_y_even = ctrl->val;
1088                 restart_overlay = 1;
1089                 break;
1090         case V4L2_CID_PRIVATE_Y_ODD:
1091                 dev->ctl_y_odd = ctrl->val;
1092                 restart_overlay = 1;
1093                 break;
1094         case V4L2_CID_PRIVATE_AUTOMUTE:
1095         {
1096                 struct v4l2_priv_tun_config tda9887_cfg;
1097
1098                 tda9887_cfg.tuner = TUNER_TDA9887;
1099                 tda9887_cfg.priv = &dev->tda9887_conf;
1100
1101                 dev->ctl_automute = ctrl->val;
1102                 if (dev->tda9887_conf) {
1103                         if (dev->ctl_automute)
1104                                 dev->tda9887_conf |= TDA9887_AUTOMUTE;
1105                         else
1106                                 dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
1107
1108                         saa_call_all(dev, tuner, s_config, &tda9887_cfg);
1109                 }
1110                 break;
1111         }
1112         default:
1113                 return -EINVAL;
1114         }
1115         if (restart_overlay && dev->overlay_owner) {
1116                 spin_lock_irqsave(&dev->slock, flags);
1117                 stop_preview(dev);
1118                 start_preview(dev);
1119                 spin_unlock_irqrestore(&dev->slock, flags);
1120         }
1121         return 0;
1122 }
1123
1124 /* ------------------------------------------------------------------ */
1125
1126 static int video_open(struct file *file)
1127 {
1128         struct video_device *vdev = video_devdata(file);
1129         struct saa7134_dev *dev = video_drvdata(file);
1130         int ret = v4l2_fh_open(file);
1131
1132         if (ret < 0)
1133                 return ret;
1134
1135         mutex_lock(&dev->lock);
1136         if (vdev->vfl_type == VFL_TYPE_RADIO) {
1137                 /* switch to radio mode */
1138                 saa7134_tvaudio_setinput(dev, &card(dev).radio);
1139                 saa_call_all(dev, tuner, s_radio);
1140         } else {
1141                 /* switch to video/vbi mode */
1142                 video_mux(dev, dev->ctl_input);
1143         }
1144         mutex_unlock(&dev->lock);
1145
1146         return 0;
1147 }
1148
1149 static int video_release(struct file *file)
1150 {
1151         struct video_device *vdev = video_devdata(file);
1152         struct saa7134_dev *dev = video_drvdata(file);
1153         struct v4l2_fh *fh = file->private_data;
1154         struct saa6588_command cmd;
1155         unsigned long flags;
1156
1157         mutex_lock(&dev->lock);
1158         saa7134_tvaudio_close(dev);
1159
1160         /* turn off overlay */
1161         if (fh == dev->overlay_owner) {
1162                 spin_lock_irqsave(&dev->slock,flags);
1163                 stop_preview(dev);
1164                 spin_unlock_irqrestore(&dev->slock,flags);
1165                 dev->overlay_owner = NULL;
1166         }
1167
1168         if (vdev->vfl_type == VFL_TYPE_RADIO)
1169                 v4l2_fh_release(file);
1170         else
1171                 _vb2_fop_release(file, NULL);
1172
1173         /* ts-capture will not work in planar mode, so turn it off Hac: 04.05*/
1174         saa_andorb(SAA7134_OFMT_VIDEO_A, 0x1f, 0);
1175         saa_andorb(SAA7134_OFMT_VIDEO_B, 0x1f, 0);
1176         saa_andorb(SAA7134_OFMT_DATA_A, 0x1f, 0);
1177         saa_andorb(SAA7134_OFMT_DATA_B, 0x1f, 0);
1178
1179         saa_call_all(dev, tuner, standby);
1180         if (vdev->vfl_type == VFL_TYPE_RADIO)
1181                 saa_call_all(dev, core, command, SAA6588_CMD_CLOSE, &cmd);
1182         mutex_unlock(&dev->lock);
1183
1184         return 0;
1185 }
1186
1187 static ssize_t radio_read(struct file *file, char __user *data,
1188                          size_t count, loff_t *ppos)
1189 {
1190         struct saa7134_dev *dev = video_drvdata(file);
1191         struct saa6588_command cmd;
1192
1193         cmd.block_count = count/3;
1194         cmd.nonblocking = file->f_flags & O_NONBLOCK;
1195         cmd.buffer = data;
1196         cmd.instance = file;
1197         cmd.result = -ENODEV;
1198
1199         mutex_lock(&dev->lock);
1200         saa_call_all(dev, core, command, SAA6588_CMD_READ, &cmd);
1201         mutex_unlock(&dev->lock);
1202
1203         return cmd.result;
1204 }
1205
1206 static __poll_t radio_poll(struct file *file, poll_table *wait)
1207 {
1208         struct saa7134_dev *dev = video_drvdata(file);
1209         struct saa6588_command cmd;
1210         __poll_t rc = v4l2_ctrl_poll(file, wait);
1211
1212         cmd.instance = file;
1213         cmd.event_list = wait;
1214         cmd.poll_mask = 0;
1215         mutex_lock(&dev->lock);
1216         saa_call_all(dev, core, command, SAA6588_CMD_POLL, &cmd);
1217         mutex_unlock(&dev->lock);
1218
1219         return rc | cmd.poll_mask;
1220 }
1221
1222 /* ------------------------------------------------------------------ */
1223
1224 static int saa7134_try_get_set_fmt_vbi_cap(struct file *file, void *priv,
1225                                                 struct v4l2_format *f)
1226 {
1227         struct saa7134_dev *dev = video_drvdata(file);
1228         struct saa7134_tvnorm *norm = dev->tvnorm;
1229
1230         memset(&f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1231         f->fmt.vbi.sampling_rate = 6750000 * 4;
1232         f->fmt.vbi.samples_per_line = 2048 /* VBI_LINE_LENGTH */;
1233         f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1234         f->fmt.vbi.offset = 64 * 4;
1235         f->fmt.vbi.start[0] = norm->vbi_v_start_0;
1236         f->fmt.vbi.count[0] = norm->vbi_v_stop_0 - norm->vbi_v_start_0 +1;
1237         f->fmt.vbi.start[1] = norm->vbi_v_start_1;
1238         f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1239         f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
1240
1241         return 0;
1242 }
1243
1244 static int saa7134_g_fmt_vid_cap(struct file *file, void *priv,
1245                                 struct v4l2_format *f)
1246 {
1247         struct saa7134_dev *dev = video_drvdata(file);
1248
1249         f->fmt.pix.width        = dev->width;
1250         f->fmt.pix.height       = dev->height;
1251         f->fmt.pix.field        = dev->field;
1252         f->fmt.pix.pixelformat  = dev->fmt->fourcc;
1253         if (dev->fmt->planar)
1254                 f->fmt.pix.bytesperline = f->fmt.pix.width;
1255         else
1256                 f->fmt.pix.bytesperline =
1257                         (f->fmt.pix.width * dev->fmt->depth) / 8;
1258         f->fmt.pix.sizeimage =
1259                 (f->fmt.pix.height * f->fmt.pix.width * dev->fmt->depth) / 8;
1260         f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
1261         return 0;
1262 }
1263
1264 static int saa7134_g_fmt_vid_overlay(struct file *file, void *priv,
1265                                 struct v4l2_format *f)
1266 {
1267         struct saa7134_dev *dev = video_drvdata(file);
1268         u32 clipcount = f->fmt.win.clipcount;
1269         int i;
1270
1271         if (saa7134_no_overlay > 0) {
1272                 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1273                 return -EINVAL;
1274         }
1275         f->fmt.win = dev->win;
1276         if (!f->fmt.win.clips) {
1277                 f->fmt.win.clipcount = 0;
1278                 return 0;
1279         }
1280         if (dev->nclips < clipcount)
1281                 clipcount = dev->nclips;
1282         f->fmt.win.clipcount = clipcount;
1283
1284         for (i = 0; i < clipcount; i++) {
1285                 memcpy(&f->fmt.win.clips[i].c, &dev->clips[i].c,
1286                        sizeof(struct v4l2_rect));
1287         }
1288
1289         return 0;
1290 }
1291
1292 static int saa7134_try_fmt_vid_cap(struct file *file, void *priv,
1293                                                 struct v4l2_format *f)
1294 {
1295         struct saa7134_dev *dev = video_drvdata(file);
1296         struct saa7134_format *fmt;
1297         enum v4l2_field field;
1298         unsigned int maxw, maxh;
1299
1300         fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1301         if (NULL == fmt)
1302                 return -EINVAL;
1303
1304         field = f->fmt.pix.field;
1305         maxw  = min(dev->crop_current.width*4,  dev->crop_bounds.width);
1306         maxh  = min(dev->crop_current.height*4, dev->crop_bounds.height);
1307
1308         if (V4L2_FIELD_ANY == field) {
1309                 field = (f->fmt.pix.height > maxh/2)
1310                         ? V4L2_FIELD_INTERLACED
1311                         : V4L2_FIELD_BOTTOM;
1312         }
1313         switch (field) {
1314         case V4L2_FIELD_TOP:
1315         case V4L2_FIELD_BOTTOM:
1316                 maxh = maxh / 2;
1317                 break;
1318         default:
1319                 field = V4L2_FIELD_INTERLACED;
1320                 break;
1321         }
1322
1323         f->fmt.pix.field = field;
1324         if (f->fmt.pix.width  < 48)
1325                 f->fmt.pix.width  = 48;
1326         if (f->fmt.pix.height < 32)
1327                 f->fmt.pix.height = 32;
1328         if (f->fmt.pix.width > maxw)
1329                 f->fmt.pix.width = maxw;
1330         if (f->fmt.pix.height > maxh)
1331                 f->fmt.pix.height = maxh;
1332         f->fmt.pix.width &= ~0x03;
1333         if (fmt->planar)
1334                 f->fmt.pix.bytesperline = f->fmt.pix.width;
1335         else
1336                 f->fmt.pix.bytesperline =
1337                         (f->fmt.pix.width * fmt->depth) / 8;
1338         f->fmt.pix.sizeimage =
1339                 (f->fmt.pix.height * f->fmt.pix.width * fmt->depth) / 8;
1340         f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
1341
1342         return 0;
1343 }
1344
1345 static int saa7134_try_fmt_vid_overlay(struct file *file, void *priv,
1346                                                 struct v4l2_format *f)
1347 {
1348         struct saa7134_dev *dev = video_drvdata(file);
1349
1350         if (saa7134_no_overlay > 0) {
1351                 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1352                 return -EINVAL;
1353         }
1354
1355         if (f->fmt.win.clips == NULL)
1356                 f->fmt.win.clipcount = 0;
1357         return verify_preview(dev, &f->fmt.win, true);
1358 }
1359
1360 static int saa7134_s_fmt_vid_cap(struct file *file, void *priv,
1361                                         struct v4l2_format *f)
1362 {
1363         struct saa7134_dev *dev = video_drvdata(file);
1364         int err;
1365
1366         err = saa7134_try_fmt_vid_cap(file, priv, f);
1367         if (0 != err)
1368                 return err;
1369
1370         dev->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1371         dev->width = f->fmt.pix.width;
1372         dev->height = f->fmt.pix.height;
1373         dev->field = f->fmt.pix.field;
1374         return 0;
1375 }
1376
1377 static int saa7134_s_fmt_vid_overlay(struct file *file, void *priv,
1378                                         struct v4l2_format *f)
1379 {
1380         struct saa7134_dev *dev = video_drvdata(file);
1381         int err;
1382         unsigned long flags;
1383
1384         if (saa7134_no_overlay > 0) {
1385                 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1386                 return -EINVAL;
1387         }
1388         if (f->fmt.win.clips == NULL)
1389                 f->fmt.win.clipcount = 0;
1390         err = verify_preview(dev, &f->fmt.win, true);
1391         if (0 != err)
1392                 return err;
1393
1394         dev->win    = f->fmt.win;
1395         dev->nclips = f->fmt.win.clipcount;
1396
1397         memcpy(dev->clips, f->fmt.win.clips,
1398                sizeof(struct v4l2_clip) * dev->nclips);
1399
1400         if (priv == dev->overlay_owner) {
1401                 spin_lock_irqsave(&dev->slock, flags);
1402                 stop_preview(dev);
1403                 start_preview(dev);
1404                 spin_unlock_irqrestore(&dev->slock, flags);
1405         }
1406
1407         return 0;
1408 }
1409
1410 int saa7134_enum_input(struct file *file, void *priv, struct v4l2_input *i)
1411 {
1412         struct saa7134_dev *dev = video_drvdata(file);
1413         unsigned int n;
1414
1415         n = i->index;
1416         if (n >= SAA7134_INPUT_MAX)
1417                 return -EINVAL;
1418         if (card_in(dev, i->index).type == SAA7134_NO_INPUT)
1419                 return -EINVAL;
1420         i->index = n;
1421         strscpy(i->name, saa7134_input_name[card_in(dev, n).type],
1422                 sizeof(i->name));
1423         switch (card_in(dev, n).type) {
1424         case SAA7134_INPUT_TV:
1425         case SAA7134_INPUT_TV_MONO:
1426                 i->type = V4L2_INPUT_TYPE_TUNER;
1427                 break;
1428         default:
1429                 i->type  = V4L2_INPUT_TYPE_CAMERA;
1430                 break;
1431         }
1432         if (n == dev->ctl_input) {
1433                 int v1 = saa_readb(SAA7134_STATUS_VIDEO1);
1434                 int v2 = saa_readb(SAA7134_STATUS_VIDEO2);
1435
1436                 if (0 != (v1 & 0x40))
1437                         i->status |= V4L2_IN_ST_NO_H_LOCK;
1438                 if (0 != (v2 & 0x40))
1439                         i->status |= V4L2_IN_ST_NO_SIGNAL;
1440                 if (0 != (v2 & 0x0e))
1441                         i->status |= V4L2_IN_ST_MACROVISION;
1442         }
1443         i->std = SAA7134_NORMS;
1444         return 0;
1445 }
1446 EXPORT_SYMBOL_GPL(saa7134_enum_input);
1447
1448 int saa7134_g_input(struct file *file, void *priv, unsigned int *i)
1449 {
1450         struct saa7134_dev *dev = video_drvdata(file);
1451
1452         *i = dev->ctl_input;
1453         return 0;
1454 }
1455 EXPORT_SYMBOL_GPL(saa7134_g_input);
1456
1457 int saa7134_s_input(struct file *file, void *priv, unsigned int i)
1458 {
1459         struct saa7134_dev *dev = video_drvdata(file);
1460
1461         if (i >= SAA7134_INPUT_MAX)
1462                 return -EINVAL;
1463         if (card_in(dev, i).type == SAA7134_NO_INPUT)
1464                 return -EINVAL;
1465         video_mux(dev, i);
1466         return 0;
1467 }
1468 EXPORT_SYMBOL_GPL(saa7134_s_input);
1469
1470 int saa7134_querycap(struct file *file, void *priv,
1471                                         struct v4l2_capability *cap)
1472 {
1473         struct saa7134_dev *dev = video_drvdata(file);
1474
1475         strscpy(cap->driver, "saa7134", sizeof(cap->driver));
1476         strscpy(cap->card, saa7134_boards[dev->board].name,
1477                 sizeof(cap->card));
1478         cap->capabilities = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1479                             V4L2_CAP_RADIO | V4L2_CAP_VIDEO_CAPTURE |
1480                             V4L2_CAP_VBI_CAPTURE | V4L2_CAP_DEVICE_CAPS;
1481         if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1482                 cap->capabilities |= V4L2_CAP_TUNER;
1483         if (dev->has_rds)
1484                 cap->capabilities |= V4L2_CAP_RDS_CAPTURE;
1485         if (saa7134_no_overlay <= 0)
1486                 cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
1487
1488         return 0;
1489 }
1490 EXPORT_SYMBOL_GPL(saa7134_querycap);
1491
1492 int saa7134_s_std(struct file *file, void *priv, v4l2_std_id id)
1493 {
1494         struct saa7134_dev *dev = video_drvdata(file);
1495         struct v4l2_fh *fh = priv;
1496         unsigned long flags;
1497         unsigned int i;
1498         v4l2_std_id fixup;
1499
1500         if (is_empress(file) && dev->overlay_owner) {
1501                 /* Don't change the std from the mpeg device
1502                    if overlay is active. */
1503                 return -EBUSY;
1504         }
1505
1506         for (i = 0; i < TVNORMS; i++)
1507                 if (id == tvnorms[i].id)
1508                         break;
1509
1510         if (i == TVNORMS)
1511                 for (i = 0; i < TVNORMS; i++)
1512                         if (id & tvnorms[i].id)
1513                                 break;
1514         if (i == TVNORMS)
1515                 return -EINVAL;
1516
1517         if ((id & V4L2_STD_SECAM) && (secam[0] != '-')) {
1518                 if (secam[0] == 'L' || secam[0] == 'l') {
1519                         if (secam[1] == 'C' || secam[1] == 'c')
1520                                 fixup = V4L2_STD_SECAM_LC;
1521                         else
1522                                 fixup = V4L2_STD_SECAM_L;
1523                 } else {
1524                         if (secam[0] == 'D' || secam[0] == 'd')
1525                                 fixup = V4L2_STD_SECAM_DK;
1526                         else
1527                                 fixup = V4L2_STD_SECAM;
1528                 }
1529                 for (i = 0; i < TVNORMS; i++) {
1530                         if (fixup == tvnorms[i].id)
1531                                 break;
1532                 }
1533                 if (i == TVNORMS)
1534                         return -EINVAL;
1535         }
1536
1537         if (!is_empress(file) && fh == dev->overlay_owner) {
1538                 spin_lock_irqsave(&dev->slock, flags);
1539                 stop_preview(dev);
1540                 spin_unlock_irqrestore(&dev->slock, flags);
1541
1542                 set_tvnorm(dev, &tvnorms[i]);
1543
1544                 spin_lock_irqsave(&dev->slock, flags);
1545                 start_preview(dev);
1546                 spin_unlock_irqrestore(&dev->slock, flags);
1547         } else
1548                 set_tvnorm(dev, &tvnorms[i]);
1549
1550         saa7134_tvaudio_do_scan(dev);
1551         return 0;
1552 }
1553 EXPORT_SYMBOL_GPL(saa7134_s_std);
1554
1555 int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id)
1556 {
1557         struct saa7134_dev *dev = video_drvdata(file);
1558
1559         *id = dev->tvnorm->id;
1560         return 0;
1561 }
1562 EXPORT_SYMBOL_GPL(saa7134_g_std);
1563
1564 static v4l2_std_id saa7134_read_std(struct saa7134_dev *dev)
1565 {
1566         static v4l2_std_id stds[] = {
1567                 V4L2_STD_UNKNOWN,
1568                 V4L2_STD_NTSC,
1569                 V4L2_STD_PAL,
1570                 V4L2_STD_SECAM };
1571
1572         v4l2_std_id result = 0;
1573
1574         u8 st1 = saa_readb(SAA7134_STATUS_VIDEO1);
1575         u8 st2 = saa_readb(SAA7134_STATUS_VIDEO2);
1576
1577         if (!(st2 & 0x1)) /* RDCAP == 0 */
1578                 result = V4L2_STD_UNKNOWN;
1579         else
1580                 result = stds[st1 & 0x03];
1581
1582         return result;
1583 }
1584
1585 int saa7134_querystd(struct file *file, void *priv, v4l2_std_id *std)
1586 {
1587         struct saa7134_dev *dev = video_drvdata(file);
1588         *std &= saa7134_read_std(dev);
1589         return 0;
1590 }
1591 EXPORT_SYMBOL_GPL(saa7134_querystd);
1592
1593 static int saa7134_g_pixelaspect(struct file *file, void *priv,
1594                                  int type, struct v4l2_fract *f)
1595 {
1596         struct saa7134_dev *dev = video_drvdata(file);
1597
1598         if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1599             type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1600                 return -EINVAL;
1601
1602         if (dev->tvnorm->id & V4L2_STD_525_60) {
1603                 f->numerator   = 11;
1604                 f->denominator = 10;
1605         }
1606         if (dev->tvnorm->id & V4L2_STD_625_50) {
1607                 f->numerator   = 54;
1608                 f->denominator = 59;
1609         }
1610         return 0;
1611 }
1612
1613 static int saa7134_g_selection(struct file *file, void *f, struct v4l2_selection *sel)
1614 {
1615         struct saa7134_dev *dev = video_drvdata(file);
1616
1617         if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1618             sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1619                 return -EINVAL;
1620
1621         switch (sel->target) {
1622         case V4L2_SEL_TGT_CROP:
1623                 sel->r = dev->crop_current;
1624                 break;
1625         case V4L2_SEL_TGT_CROP_DEFAULT:
1626                 sel->r = dev->crop_defrect;
1627                 break;
1628         case V4L2_SEL_TGT_CROP_BOUNDS:
1629                 sel->r  = dev->crop_bounds;
1630                 break;
1631         default:
1632                 return -EINVAL;
1633         }
1634         return 0;
1635 }
1636
1637 static int saa7134_s_selection(struct file *file, void *f, struct v4l2_selection *sel)
1638 {
1639         struct saa7134_dev *dev = video_drvdata(file);
1640         struct v4l2_rect *b = &dev->crop_bounds;
1641         struct v4l2_rect *c = &dev->crop_current;
1642
1643         if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1644             sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1645                 return -EINVAL;
1646
1647         if (sel->target != V4L2_SEL_TGT_CROP)
1648                 return -EINVAL;
1649
1650         if (dev->overlay_owner)
1651                 return -EBUSY;
1652         if (vb2_is_streaming(&dev->video_vbq))
1653                 return -EBUSY;
1654
1655         *c = sel->r;
1656         if (c->top < b->top)
1657                 c->top = b->top;
1658         if (c->top > b->top + b->height)
1659                 c->top = b->top + b->height;
1660         if (c->height > b->top - c->top + b->height)
1661                 c->height = b->top - c->top + b->height;
1662
1663         if (c->left < b->left)
1664                 c->left = b->left;
1665         if (c->left > b->left + b->width)
1666                 c->left = b->left + b->width;
1667         if (c->width > b->left - c->left + b->width)
1668                 c->width = b->left - c->left + b->width;
1669         sel->r = *c;
1670         return 0;
1671 }
1672
1673 int saa7134_g_tuner(struct file *file, void *priv,
1674                                         struct v4l2_tuner *t)
1675 {
1676         struct saa7134_dev *dev = video_drvdata(file);
1677         int n;
1678
1679         if (0 != t->index)
1680                 return -EINVAL;
1681         memset(t, 0, sizeof(*t));
1682         for (n = 0; n < SAA7134_INPUT_MAX; n++) {
1683                 if (card_in(dev, n).type == SAA7134_INPUT_TV ||
1684                     card_in(dev, n).type == SAA7134_INPUT_TV_MONO)
1685                         break;
1686         }
1687         if (n == SAA7134_INPUT_MAX)
1688                 return -EINVAL;
1689         if (card_in(dev, n).type != SAA7134_NO_INPUT) {
1690                 strscpy(t->name, "Television", sizeof(t->name));
1691                 t->type = V4L2_TUNER_ANALOG_TV;
1692                 saa_call_all(dev, tuner, g_tuner, t);
1693                 t->capability = V4L2_TUNER_CAP_NORM |
1694                         V4L2_TUNER_CAP_STEREO |
1695                         V4L2_TUNER_CAP_LANG1 |
1696                         V4L2_TUNER_CAP_LANG2;
1697                 t->rxsubchans = saa7134_tvaudio_getstereo(dev);
1698                 t->audmode = saa7134_tvaudio_rx2mode(t->rxsubchans);
1699         }
1700         if (0 != (saa_readb(SAA7134_STATUS_VIDEO1) & 0x03))
1701                 t->signal = 0xffff;
1702         return 0;
1703 }
1704 EXPORT_SYMBOL_GPL(saa7134_g_tuner);
1705
1706 int saa7134_s_tuner(struct file *file, void *priv,
1707                                         const struct v4l2_tuner *t)
1708 {
1709         struct saa7134_dev *dev = video_drvdata(file);
1710         int rx, mode;
1711
1712         if (0 != t->index)
1713                 return -EINVAL;
1714
1715         mode = dev->thread.mode;
1716         if (UNSET == mode) {
1717                 rx   = saa7134_tvaudio_getstereo(dev);
1718                 mode = saa7134_tvaudio_rx2mode(rx);
1719         }
1720         if (mode != t->audmode)
1721                 dev->thread.mode = t->audmode;
1722
1723         return 0;
1724 }
1725 EXPORT_SYMBOL_GPL(saa7134_s_tuner);
1726
1727 int saa7134_g_frequency(struct file *file, void *priv,
1728                                         struct v4l2_frequency *f)
1729 {
1730         struct saa7134_dev *dev = video_drvdata(file);
1731
1732         if (0 != f->tuner)
1733                 return -EINVAL;
1734
1735         saa_call_all(dev, tuner, g_frequency, f);
1736
1737         return 0;
1738 }
1739 EXPORT_SYMBOL_GPL(saa7134_g_frequency);
1740
1741 int saa7134_s_frequency(struct file *file, void *priv,
1742                                         const struct v4l2_frequency *f)
1743 {
1744         struct saa7134_dev *dev = video_drvdata(file);
1745
1746         if (0 != f->tuner)
1747                 return -EINVAL;
1748
1749         saa_call_all(dev, tuner, s_frequency, f);
1750
1751         saa7134_tvaudio_do_scan(dev);
1752         return 0;
1753 }
1754 EXPORT_SYMBOL_GPL(saa7134_s_frequency);
1755
1756 static int saa7134_enum_fmt_vid_cap(struct file *file, void  *priv,
1757                                         struct v4l2_fmtdesc *f)
1758 {
1759         if (f->index >= FORMATS)
1760                 return -EINVAL;
1761
1762         f->pixelformat = formats[f->index].fourcc;
1763
1764         return 0;
1765 }
1766
1767 static int saa7134_enum_fmt_vid_overlay(struct file *file, void  *priv,
1768                                         struct v4l2_fmtdesc *f)
1769 {
1770         if (saa7134_no_overlay > 0) {
1771                 pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1772                 return -EINVAL;
1773         }
1774
1775         if ((f->index >= FORMATS) || formats[f->index].planar)
1776                 return -EINVAL;
1777
1778         f->pixelformat = formats[f->index].fourcc;
1779
1780         return 0;
1781 }
1782
1783 static int saa7134_g_fbuf(struct file *file, void *f,
1784                                 struct v4l2_framebuffer *fb)
1785 {
1786         struct saa7134_dev *dev = video_drvdata(file);
1787
1788         *fb = dev->ovbuf;
1789         fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
1790
1791         return 0;
1792 }
1793
1794 static int saa7134_s_fbuf(struct file *file, void *f,
1795                                         const struct v4l2_framebuffer *fb)
1796 {
1797         struct saa7134_dev *dev = video_drvdata(file);
1798         struct saa7134_format *fmt;
1799
1800         if (!capable(CAP_SYS_ADMIN) &&
1801            !capable(CAP_SYS_RAWIO))
1802                 return -EPERM;
1803
1804         /* check args */
1805         fmt = format_by_fourcc(fb->fmt.pixelformat);
1806         if (NULL == fmt)
1807                 return -EINVAL;
1808
1809         /* ok, accept it */
1810         dev->ovbuf = *fb;
1811         dev->ovfmt = fmt;
1812         if (0 == dev->ovbuf.fmt.bytesperline)
1813                 dev->ovbuf.fmt.bytesperline =
1814                         dev->ovbuf.fmt.width*fmt->depth/8;
1815         return 0;
1816 }
1817
1818 static int saa7134_overlay(struct file *file, void *priv, unsigned int on)
1819 {
1820         struct saa7134_dev *dev = video_drvdata(file);
1821         unsigned long flags;
1822
1823         if (on) {
1824                 if (saa7134_no_overlay > 0) {
1825                         video_dbg("no_overlay\n");
1826                         return -EINVAL;
1827                 }
1828
1829                 if (dev->overlay_owner && priv != dev->overlay_owner)
1830                         return -EBUSY;
1831                 dev->overlay_owner = priv;
1832                 spin_lock_irqsave(&dev->slock, flags);
1833                 start_preview(dev);
1834                 spin_unlock_irqrestore(&dev->slock, flags);
1835         } else {
1836                 if (priv != dev->overlay_owner)
1837                         return -EINVAL;
1838                 spin_lock_irqsave(&dev->slock, flags);
1839                 stop_preview(dev);
1840                 spin_unlock_irqrestore(&dev->slock, flags);
1841                 dev->overlay_owner = NULL;
1842         }
1843         return 0;
1844 }
1845
1846 #ifdef CONFIG_VIDEO_ADV_DEBUG
1847 static int vidioc_g_register (struct file *file, void *priv,
1848                               struct v4l2_dbg_register *reg)
1849 {
1850         struct saa7134_dev *dev = video_drvdata(file);
1851
1852         reg->val = saa_readb(reg->reg & 0xffffff);
1853         reg->size = 1;
1854         return 0;
1855 }
1856
1857 static int vidioc_s_register (struct file *file, void *priv,
1858                                 const struct v4l2_dbg_register *reg)
1859 {
1860         struct saa7134_dev *dev = video_drvdata(file);
1861
1862         saa_writeb(reg->reg & 0xffffff, reg->val);
1863         return 0;
1864 }
1865 #endif
1866
1867 static int radio_g_tuner(struct file *file, void *priv,
1868                                         struct v4l2_tuner *t)
1869 {
1870         struct saa7134_dev *dev = video_drvdata(file);
1871
1872         if (0 != t->index)
1873                 return -EINVAL;
1874
1875         strscpy(t->name, "Radio", sizeof(t->name));
1876
1877         saa_call_all(dev, tuner, g_tuner, t);
1878         t->audmode &= V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO;
1879         if (dev->input->amux == TV) {
1880                 t->signal = 0xf800 - ((saa_readb(0x581) & 0x1f) << 11);
1881                 t->rxsubchans = (saa_readb(0x529) & 0x08) ?
1882                                 V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
1883         }
1884         return 0;
1885 }
1886 static int radio_s_tuner(struct file *file, void *priv,
1887                                         const struct v4l2_tuner *t)
1888 {
1889         struct saa7134_dev *dev = video_drvdata(file);
1890
1891         if (0 != t->index)
1892                 return -EINVAL;
1893
1894         saa_call_all(dev, tuner, s_tuner, t);
1895         return 0;
1896 }
1897
1898 static const struct v4l2_file_operations video_fops =
1899 {
1900         .owner    = THIS_MODULE,
1901         .open     = video_open,
1902         .release  = video_release,
1903         .read     = vb2_fop_read,
1904         .poll     = vb2_fop_poll,
1905         .mmap     = vb2_fop_mmap,
1906         .unlocked_ioctl   = video_ioctl2,
1907 };
1908
1909 static const struct v4l2_ioctl_ops video_ioctl_ops = {
1910         .vidioc_querycap                = saa7134_querycap,
1911         .vidioc_enum_fmt_vid_cap        = saa7134_enum_fmt_vid_cap,
1912         .vidioc_g_fmt_vid_cap           = saa7134_g_fmt_vid_cap,
1913         .vidioc_try_fmt_vid_cap         = saa7134_try_fmt_vid_cap,
1914         .vidioc_s_fmt_vid_cap           = saa7134_s_fmt_vid_cap,
1915         .vidioc_enum_fmt_vid_overlay    = saa7134_enum_fmt_vid_overlay,
1916         .vidioc_g_fmt_vid_overlay       = saa7134_g_fmt_vid_overlay,
1917         .vidioc_try_fmt_vid_overlay     = saa7134_try_fmt_vid_overlay,
1918         .vidioc_s_fmt_vid_overlay       = saa7134_s_fmt_vid_overlay,
1919         .vidioc_g_fmt_vbi_cap           = saa7134_try_get_set_fmt_vbi_cap,
1920         .vidioc_try_fmt_vbi_cap         = saa7134_try_get_set_fmt_vbi_cap,
1921         .vidioc_s_fmt_vbi_cap           = saa7134_try_get_set_fmt_vbi_cap,
1922         .vidioc_g_pixelaspect           = saa7134_g_pixelaspect,
1923         .vidioc_reqbufs                 = vb2_ioctl_reqbufs,
1924         .vidioc_querybuf                = vb2_ioctl_querybuf,
1925         .vidioc_qbuf                    = vb2_ioctl_qbuf,
1926         .vidioc_dqbuf                   = vb2_ioctl_dqbuf,
1927         .vidioc_expbuf                  = vb2_ioctl_expbuf,
1928         .vidioc_s_std                   = saa7134_s_std,
1929         .vidioc_g_std                   = saa7134_g_std,
1930         .vidioc_querystd                = saa7134_querystd,
1931         .vidioc_enum_input              = saa7134_enum_input,
1932         .vidioc_g_input                 = saa7134_g_input,
1933         .vidioc_s_input                 = saa7134_s_input,
1934         .vidioc_streamon                = vb2_ioctl_streamon,
1935         .vidioc_streamoff               = vb2_ioctl_streamoff,
1936         .vidioc_g_tuner                 = saa7134_g_tuner,
1937         .vidioc_s_tuner                 = saa7134_s_tuner,
1938         .vidioc_g_selection             = saa7134_g_selection,
1939         .vidioc_s_selection             = saa7134_s_selection,
1940         .vidioc_g_fbuf                  = saa7134_g_fbuf,
1941         .vidioc_s_fbuf                  = saa7134_s_fbuf,
1942         .vidioc_overlay                 = saa7134_overlay,
1943         .vidioc_g_frequency             = saa7134_g_frequency,
1944         .vidioc_s_frequency             = saa7134_s_frequency,
1945 #ifdef CONFIG_VIDEO_ADV_DEBUG
1946         .vidioc_g_register              = vidioc_g_register,
1947         .vidioc_s_register              = vidioc_s_register,
1948 #endif
1949         .vidioc_log_status              = v4l2_ctrl_log_status,
1950         .vidioc_subscribe_event         = v4l2_ctrl_subscribe_event,
1951         .vidioc_unsubscribe_event       = v4l2_event_unsubscribe,
1952 };
1953
1954 static const struct v4l2_file_operations radio_fops = {
1955         .owner    = THIS_MODULE,
1956         .open     = video_open,
1957         .read     = radio_read,
1958         .release  = video_release,
1959         .unlocked_ioctl = video_ioctl2,
1960         .poll     = radio_poll,
1961 };
1962
1963 static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1964         .vidioc_querycap        = saa7134_querycap,
1965         .vidioc_g_tuner         = radio_g_tuner,
1966         .vidioc_s_tuner         = radio_s_tuner,
1967         .vidioc_g_frequency     = saa7134_g_frequency,
1968         .vidioc_s_frequency     = saa7134_s_frequency,
1969         .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1970         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1971 };
1972
1973 /* ----------------------------------------------------------- */
1974 /* exported stuff                                              */
1975
1976 struct video_device saa7134_video_template = {
1977         .name                           = "saa7134-video",
1978         .fops                           = &video_fops,
1979         .ioctl_ops                      = &video_ioctl_ops,
1980         .tvnorms                        = SAA7134_NORMS,
1981 };
1982
1983 struct video_device saa7134_radio_template = {
1984         .name                   = "saa7134-radio",
1985         .fops                   = &radio_fops,
1986         .ioctl_ops              = &radio_ioctl_ops,
1987 };
1988
1989 static const struct v4l2_ctrl_ops saa7134_ctrl_ops = {
1990         .s_ctrl = saa7134_s_ctrl,
1991 };
1992
1993 static const struct v4l2_ctrl_config saa7134_ctrl_invert = {
1994         .ops = &saa7134_ctrl_ops,
1995         .id = V4L2_CID_PRIVATE_INVERT,
1996         .name = "Invert",
1997         .type = V4L2_CTRL_TYPE_BOOLEAN,
1998         .min = 0,
1999         .max = 1,
2000         .step = 1,
2001 };
2002
2003 static const struct v4l2_ctrl_config saa7134_ctrl_y_odd = {
2004         .ops = &saa7134_ctrl_ops,
2005         .id = V4L2_CID_PRIVATE_Y_ODD,
2006         .name = "Y Offset Odd Field",
2007         .type = V4L2_CTRL_TYPE_INTEGER,
2008         .min = 0,
2009         .max = 128,
2010         .step = 1,
2011 };
2012
2013 static const struct v4l2_ctrl_config saa7134_ctrl_y_even = {
2014         .ops = &saa7134_ctrl_ops,
2015         .id = V4L2_CID_PRIVATE_Y_EVEN,
2016         .name = "Y Offset Even Field",
2017         .type = V4L2_CTRL_TYPE_INTEGER,
2018         .min = 0,
2019         .max = 128,
2020         .step = 1,
2021 };
2022
2023 static const struct v4l2_ctrl_config saa7134_ctrl_automute = {
2024         .ops = &saa7134_ctrl_ops,
2025         .id = V4L2_CID_PRIVATE_AUTOMUTE,
2026         .name = "Automute",
2027         .type = V4L2_CTRL_TYPE_BOOLEAN,
2028         .min = 0,
2029         .max = 1,
2030         .step = 1,
2031         .def = 1,
2032 };
2033
2034 int saa7134_video_init1(struct saa7134_dev *dev)
2035 {
2036         struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler;
2037         struct vb2_queue *q;
2038         int ret;
2039
2040         /* sanitycheck insmod options */
2041         if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
2042                 gbuffers = 2;
2043         if (gbufsize > gbufsize_max)
2044                 gbufsize = gbufsize_max;
2045         gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
2046
2047         v4l2_ctrl_handler_init(hdl, 11);
2048         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2049                         V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
2050         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2051                         V4L2_CID_CONTRAST, 0, 127, 1, 68);
2052         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2053                         V4L2_CID_SATURATION, 0, 127, 1, 64);
2054         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2055                         V4L2_CID_HUE, -128, 127, 1, 0);
2056         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2057                         V4L2_CID_HFLIP, 0, 1, 1, 0);
2058         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2059                         V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
2060         v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2061                         V4L2_CID_AUDIO_VOLUME, -15, 15, 1, 0);
2062         v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_invert, NULL);
2063         v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_odd, NULL);
2064         v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_even, NULL);
2065         v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_automute, NULL);
2066         if (hdl->error)
2067                 return hdl->error;
2068         if (card_has_radio(dev)) {
2069                 hdl = &dev->radio_ctrl_handler;
2070                 v4l2_ctrl_handler_init(hdl, 2);
2071                 v4l2_ctrl_add_handler(hdl, &dev->ctrl_handler,
2072                                 v4l2_ctrl_radio_filter, false);
2073                 if (hdl->error)
2074                         return hdl->error;
2075         }
2076         dev->ctl_mute       = 1;
2077
2078         if (dev->tda9887_conf && saa7134_ctrl_automute.def)
2079                 dev->tda9887_conf |= TDA9887_AUTOMUTE;
2080         dev->automute       = 0;
2081
2082         INIT_LIST_HEAD(&dev->video_q.queue);
2083         timer_setup(&dev->video_q.timeout, saa7134_buffer_timeout, 0);
2084         dev->video_q.dev              = dev;
2085         dev->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
2086         dev->width    = 720;
2087         dev->height   = 576;
2088         dev->field = V4L2_FIELD_INTERLACED;
2089         dev->win.w.width = dev->width;
2090         dev->win.w.height = dev->height;
2091         dev->win.field = V4L2_FIELD_INTERLACED;
2092         dev->ovbuf.fmt.width = dev->width;
2093         dev->ovbuf.fmt.height = dev->height;
2094         dev->ovbuf.fmt.pixelformat = dev->fmt->fourcc;
2095         dev->ovbuf.fmt.colorspace = V4L2_COLORSPACE_SMPTE170M;
2096
2097         if (saa7134_boards[dev->board].video_out)
2098                 saa7134_videoport_init(dev);
2099
2100         q = &dev->video_vbq;
2101         q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2102         /*
2103          * Do not add VB2_USERPTR unless explicitly requested: the saa7134 DMA
2104          * engine cannot handle transfers that do not start at the beginning
2105          * of a page. A user-provided pointer can start anywhere in a page, so
2106          * USERPTR support is a no-go unless the application knows about these
2107          * limitations and has special support for this.
2108          */
2109         q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
2110         if (saa7134_userptr)
2111                 q->io_modes |= VB2_USERPTR;
2112         q->drv_priv = &dev->video_q;
2113         q->ops = &vb2_qops;
2114         q->gfp_flags = GFP_DMA32;
2115         q->mem_ops = &vb2_dma_sg_memops;
2116         q->buf_struct_size = sizeof(struct saa7134_buf);
2117         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2118         q->lock = &dev->lock;
2119         q->dev = &dev->pci->dev;
2120         ret = vb2_queue_init(q);
2121         if (ret)
2122                 return ret;
2123         saa7134_pgtable_alloc(dev->pci, &dev->video_q.pt);
2124
2125         q = &dev->vbi_vbq;
2126         q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
2127         /* Don't add VB2_USERPTR, see comment above */
2128         q->io_modes = VB2_MMAP | VB2_READ;
2129         if (saa7134_userptr)
2130                 q->io_modes |= VB2_USERPTR;
2131         q->drv_priv = &dev->vbi_q;
2132         q->ops = &saa7134_vbi_qops;
2133         q->gfp_flags = GFP_DMA32;
2134         q->mem_ops = &vb2_dma_sg_memops;
2135         q->buf_struct_size = sizeof(struct saa7134_buf);
2136         q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2137         q->lock = &dev->lock;
2138         q->dev = &dev->pci->dev;
2139         ret = vb2_queue_init(q);
2140         if (ret)
2141                 return ret;
2142         saa7134_pgtable_alloc(dev->pci, &dev->vbi_q.pt);
2143
2144         return 0;
2145 }
2146
2147 void saa7134_video_fini(struct saa7134_dev *dev)
2148 {
2149         /* free stuff */
2150         saa7134_pgtable_free(dev->pci, &dev->video_q.pt);
2151         saa7134_pgtable_free(dev->pci, &dev->vbi_q.pt);
2152         v4l2_ctrl_handler_free(&dev->ctrl_handler);
2153         if (card_has_radio(dev))
2154                 v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
2155 }
2156
2157 int saa7134_videoport_init(struct saa7134_dev *dev)
2158 {
2159         /* enable video output */
2160         int vo = saa7134_boards[dev->board].video_out;
2161         int video_reg;
2162         unsigned int vid_port_opts = saa7134_boards[dev->board].vid_port_opts;
2163
2164         /* Configure videoport */
2165         saa_writeb(SAA7134_VIDEO_PORT_CTRL0, video_out[vo][0]);
2166         video_reg = video_out[vo][1];
2167         if (vid_port_opts & SET_T_CODE_POLARITY_NON_INVERTED)
2168                 video_reg &= ~VP_T_CODE_P_INVERTED;
2169         saa_writeb(SAA7134_VIDEO_PORT_CTRL1, video_reg);
2170         saa_writeb(SAA7134_VIDEO_PORT_CTRL2, video_out[vo][2]);
2171         saa_writeb(SAA7134_VIDEO_PORT_CTRL4, video_out[vo][4]);
2172         video_reg = video_out[vo][5];
2173         if (vid_port_opts & SET_CLOCK_NOT_DELAYED)
2174                 video_reg &= ~VP_CLK_CTRL2_DELAYED;
2175         if (vid_port_opts & SET_CLOCK_INVERTED)
2176                 video_reg |= VP_CLK_CTRL1_INVERTED;
2177         saa_writeb(SAA7134_VIDEO_PORT_CTRL5, video_reg);
2178         video_reg = video_out[vo][6];
2179         if (vid_port_opts & SET_VSYNC_OFF) {
2180                 video_reg &= ~VP_VS_TYPE_MASK;
2181                 video_reg |= VP_VS_TYPE_OFF;
2182         }
2183         saa_writeb(SAA7134_VIDEO_PORT_CTRL6, video_reg);
2184         saa_writeb(SAA7134_VIDEO_PORT_CTRL7, video_out[vo][7]);
2185         saa_writeb(SAA7134_VIDEO_PORT_CTRL8, video_out[vo][8]);
2186
2187         /* Start videoport */
2188         saa_writeb(SAA7134_VIDEO_PORT_CTRL3, video_out[vo][3]);
2189
2190         return 0;
2191 }
2192
2193 int saa7134_video_init2(struct saa7134_dev *dev)
2194 {
2195         /* init video hw */
2196         set_tvnorm(dev,&tvnorms[0]);
2197         video_mux(dev,0);
2198         v4l2_ctrl_handler_setup(&dev->ctrl_handler);
2199         saa7134_tvaudio_setmute(dev);
2200         saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
2201         return 0;
2202 }
2203
2204 void saa7134_irq_video_signalchange(struct saa7134_dev *dev)
2205 {
2206         static const char *st[] = {
2207                 "(no signal)", "NTSC", "PAL", "SECAM" };
2208         u32 st1,st2;
2209
2210         st1 = saa_readb(SAA7134_STATUS_VIDEO1);
2211         st2 = saa_readb(SAA7134_STATUS_VIDEO2);
2212         video_dbg("DCSDT: pll: %s, sync: %s, norm: %s\n",
2213                 (st1 & 0x40) ? "not locked" : "locked",
2214                 (st2 & 0x40) ? "no"         : "yes",
2215                 st[st1 & 0x03]);
2216         dev->nosignal = (st1 & 0x40) || (st2 & 0x40)  || !(st2 & 0x1);
2217
2218         if (dev->nosignal) {
2219                 /* no video signal -> mute audio */
2220                 if (dev->ctl_automute)
2221                         dev->automute = 1;
2222                 saa7134_tvaudio_setmute(dev);
2223         } else {
2224                 /* wake up tvaudio audio carrier scan thread */
2225                 saa7134_tvaudio_do_scan(dev);
2226         }
2227
2228         if ((st2 & 0x80) && !noninterlaced && !dev->nosignal)
2229                 saa_clearb(SAA7134_SYNC_CTRL, 0x20);
2230         else
2231                 saa_setb(SAA7134_SYNC_CTRL, 0x20);
2232
2233         if (dev->mops && dev->mops->signal_change)
2234                 dev->mops->signal_change(dev);
2235 }
2236
2237
2238 void saa7134_irq_video_done(struct saa7134_dev *dev, unsigned long status)
2239 {
2240         enum v4l2_field field;
2241
2242         spin_lock(&dev->slock);
2243         if (dev->video_q.curr) {
2244                 field = dev->field;
2245                 if (V4L2_FIELD_HAS_BOTH(field)) {
2246                         /* make sure we have seen both fields */
2247                         if ((status & 0x10) == 0x00) {
2248                                 dev->video_q.curr->top_seen = 1;
2249                                 goto done;
2250                         }
2251                         if (!dev->video_q.curr->top_seen)
2252                                 goto done;
2253                 } else if (field == V4L2_FIELD_TOP) {
2254                         if ((status & 0x10) != 0x10)
2255                                 goto done;
2256                 } else if (field == V4L2_FIELD_BOTTOM) {
2257                         if ((status & 0x10) != 0x00)
2258                                 goto done;
2259                 }
2260                 saa7134_buffer_finish(dev, &dev->video_q, VB2_BUF_STATE_DONE);
2261         }
2262         saa7134_buffer_next(dev, &dev->video_q);
2263
2264  done:
2265         spin_unlock(&dev->slock);
2266 }