linux/drivers/media/pci/saa7134/saa7134-video.c
<<
>>
Prefs
   1/*
   2 *
   3 * device driver for philips saa7134 based TV cards
   4 * video4linux video interface
   5 *
   6 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   7 *
   8 *  This program is free software; you can redistribute it and/or modify
   9 *  it under the terms of the GNU General Public License as published by
  10 *  the Free Software Foundation; either version 2 of the License, or
  11 *  (at your option) any later version.
  12 *
  13 *  This program is distributed in the hope that it will be useful,
  14 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 *  GNU General Public License for more details.
  17 */
  18
  19#include "saa7134.h"
  20#include "saa7134-reg.h"
  21
  22#include <linux/init.h>
  23#include <linux/list.h>
  24#include <linux/module.h>
  25#include <linux/kernel.h>
  26#include <linux/slab.h>
  27#include <linux/sort.h>
  28
  29#include <media/v4l2-common.h>
  30#include <media/v4l2-event.h>
  31#include <media/i2c/saa6588.h>
  32
  33/* ------------------------------------------------------------------ */
  34
  35unsigned int video_debug;
  36static unsigned int gbuffers      = 8;
  37static unsigned int noninterlaced; /* 0 */
  38static unsigned int gbufsize      = 720*576*4;
  39static unsigned int gbufsize_max  = 720*576*4;
  40static char secam[] = "--";
  41module_param(video_debug, int, 0644);
  42MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
  43module_param(gbuffers, int, 0444);
  44MODULE_PARM_DESC(gbuffers,"number of capture buffers, range 2-32");
  45module_param(noninterlaced, int, 0644);
  46MODULE_PARM_DESC(noninterlaced,"capture non interlaced video");
  47module_param_string(secam, secam, sizeof(secam), 0644);
  48MODULE_PARM_DESC(secam, "force SECAM variant, either DK,L or Lc");
  49
  50
  51#define video_dbg(fmt, arg...) do { \
  52        if (video_debug & 0x04) \
  53                printk(KERN_DEBUG pr_fmt("video: " fmt), ## arg); \
  54        } while (0)
  55
  56/* ------------------------------------------------------------------ */
  57/* Defines for Video Output Port Register at address 0x191            */
  58
  59/* Bit 0: VIP code T bit polarity */
  60
  61#define VP_T_CODE_P_NON_INVERTED        0x00
  62#define VP_T_CODE_P_INVERTED            0x01
  63
  64/* ------------------------------------------------------------------ */
  65/* Defines for Video Output Port Register at address 0x195            */
  66
  67/* Bit 2: Video output clock delay control */
  68
  69#define VP_CLK_CTRL2_NOT_DELAYED        0x00
  70#define VP_CLK_CTRL2_DELAYED            0x04
  71
  72/* Bit 1: Video output clock invert control */
  73
  74#define VP_CLK_CTRL1_NON_INVERTED       0x00
  75#define VP_CLK_CTRL1_INVERTED           0x02
  76
  77/* ------------------------------------------------------------------ */
  78/* Defines for Video Output Port Register at address 0x196            */
  79
  80/* Bits 2 to 0: VSYNC pin video vertical sync type */
  81
  82#define VP_VS_TYPE_MASK                 0x07
  83
  84#define VP_VS_TYPE_OFF                  0x00
  85#define VP_VS_TYPE_V123                 0x01
  86#define VP_VS_TYPE_V_ITU                0x02
  87#define VP_VS_TYPE_VGATE_L              0x03
  88#define VP_VS_TYPE_RESERVED1            0x04
  89#define VP_VS_TYPE_RESERVED2            0x05
  90#define VP_VS_TYPE_F_ITU                0x06
  91#define VP_VS_TYPE_SC_FID               0x07
  92
  93/* ------------------------------------------------------------------ */
  94/* data structs for video                                             */
  95
  96static int video_out[][9] = {
  97        [CCIR656] = { 0x00, 0xb1, 0x00, 0xa1, 0x00, 0x04, 0x06, 0x00, 0x00 },
  98};
  99
 100static struct saa7134_format formats[] = {
 101        {
 102                .name     = "8 bpp gray",
 103                .fourcc   = V4L2_PIX_FMT_GREY,
 104                .depth    = 8,
 105                .pm       = 0x06,
 106        },{
 107                .name     = "15 bpp RGB, le",
 108                .fourcc   = V4L2_PIX_FMT_RGB555,
 109                .depth    = 16,
 110                .pm       = 0x13 | 0x80,
 111        },{
 112                .name     = "15 bpp RGB, be",
 113                .fourcc   = V4L2_PIX_FMT_RGB555X,
 114                .depth    = 16,
 115                .pm       = 0x13 | 0x80,
 116                .bswap    = 1,
 117        },{
 118                .name     = "16 bpp RGB, le",
 119                .fourcc   = V4L2_PIX_FMT_RGB565,
 120                .depth    = 16,
 121                .pm       = 0x10 | 0x80,
 122        },{
 123                .name     = "16 bpp RGB, be",
 124                .fourcc   = V4L2_PIX_FMT_RGB565X,
 125                .depth    = 16,
 126                .pm       = 0x10 | 0x80,
 127                .bswap    = 1,
 128        },{
 129                .name     = "24 bpp RGB, le",
 130                .fourcc   = V4L2_PIX_FMT_BGR24,
 131                .depth    = 24,
 132                .pm       = 0x11,
 133        },{
 134                .name     = "24 bpp RGB, be",
 135                .fourcc   = V4L2_PIX_FMT_RGB24,
 136                .depth    = 24,
 137                .pm       = 0x11,
 138                .bswap    = 1,
 139        },{
 140                .name     = "32 bpp RGB, le",
 141                .fourcc   = V4L2_PIX_FMT_BGR32,
 142                .depth    = 32,
 143                .pm       = 0x12,
 144        },{
 145                .name     = "32 bpp RGB, be",
 146                .fourcc   = V4L2_PIX_FMT_RGB32,
 147                .depth    = 32,
 148                .pm       = 0x12,
 149                .bswap    = 1,
 150                .wswap    = 1,
 151        },{
 152                .name     = "4:2:2 packed, YUYV",
 153                .fourcc   = V4L2_PIX_FMT_YUYV,
 154                .depth    = 16,
 155                .pm       = 0x00,
 156                .bswap    = 1,
 157                .yuv      = 1,
 158        },{
 159                .name     = "4:2:2 packed, UYVY",
 160                .fourcc   = V4L2_PIX_FMT_UYVY,
 161                .depth    = 16,
 162                .pm       = 0x00,
 163                .yuv      = 1,
 164        },{
 165                .name     = "4:2:2 planar, Y-Cb-Cr",
 166                .fourcc   = V4L2_PIX_FMT_YUV422P,
 167                .depth    = 16,
 168                .pm       = 0x09,
 169                .yuv      = 1,
 170                .planar   = 1,
 171                .hshift   = 1,
 172                .vshift   = 0,
 173        },{
 174                .name     = "4:2:0 planar, Y-Cb-Cr",
 175                .fourcc   = V4L2_PIX_FMT_YUV420,
 176                .depth    = 12,
 177                .pm       = 0x0a,
 178                .yuv      = 1,
 179                .planar   = 1,
 180                .hshift   = 1,
 181                .vshift   = 1,
 182        },{
 183                .name     = "4:2:0 planar, Y-Cb-Cr",
 184                .fourcc   = V4L2_PIX_FMT_YVU420,
 185                .depth    = 12,
 186                .pm       = 0x0a,
 187                .yuv      = 1,
 188                .planar   = 1,
 189                .uvswap   = 1,
 190                .hshift   = 1,
 191                .vshift   = 1,
 192        }
 193};
 194#define FORMATS ARRAY_SIZE(formats)
 195
 196#define NORM_625_50                     \
 197                .h_start       = 0,     \
 198                .h_stop        = 719,   \
 199                .video_v_start = 24,    \
 200                .video_v_stop  = 311,   \
 201                .vbi_v_start_0 = 7,     \
 202                .vbi_v_stop_0  = 23,    \
 203                .vbi_v_start_1 = 319,   \
 204                .src_timing    = 4
 205
 206#define NORM_525_60                     \
 207                .h_start       = 0,     \
 208                .h_stop        = 719,   \
 209                .video_v_start = 23,    \
 210                .video_v_stop  = 262,   \
 211                .vbi_v_start_0 = 10,    \
 212                .vbi_v_stop_0  = 21,    \
 213                .vbi_v_start_1 = 273,   \
 214                .src_timing    = 7
 215
 216static struct saa7134_tvnorm tvnorms[] = {
 217        {
 218                .name          = "PAL", /* autodetect */
 219                .id            = V4L2_STD_PAL,
 220                NORM_625_50,
 221
 222                .sync_control  = 0x18,
 223                .luma_control  = 0x40,
 224                .chroma_ctrl1  = 0x81,
 225                .chroma_gain   = 0x2a,
 226                .chroma_ctrl2  = 0x06,
 227                .vgate_misc    = 0x1c,
 228
 229        },{
 230                .name          = "PAL-BG",
 231                .id            = V4L2_STD_PAL_BG,
 232                NORM_625_50,
 233
 234                .sync_control  = 0x18,
 235                .luma_control  = 0x40,
 236                .chroma_ctrl1  = 0x81,
 237                .chroma_gain   = 0x2a,
 238                .chroma_ctrl2  = 0x06,
 239                .vgate_misc    = 0x1c,
 240
 241        },{
 242                .name          = "PAL-I",
 243                .id            = V4L2_STD_PAL_I,
 244                NORM_625_50,
 245
 246                .sync_control  = 0x18,
 247                .luma_control  = 0x40,
 248                .chroma_ctrl1  = 0x81,
 249                .chroma_gain   = 0x2a,
 250                .chroma_ctrl2  = 0x06,
 251                .vgate_misc    = 0x1c,
 252
 253        },{
 254                .name          = "PAL-DK",
 255                .id            = V4L2_STD_PAL_DK,
 256                NORM_625_50,
 257
 258                .sync_control  = 0x18,
 259                .luma_control  = 0x40,
 260                .chroma_ctrl1  = 0x81,
 261                .chroma_gain   = 0x2a,
 262                .chroma_ctrl2  = 0x06,
 263                .vgate_misc    = 0x1c,
 264
 265        },{
 266                .name          = "NTSC",
 267                .id            = V4L2_STD_NTSC,
 268                NORM_525_60,
 269
 270                .sync_control  = 0x59,
 271                .luma_control  = 0x40,
 272                .chroma_ctrl1  = 0x89,
 273                .chroma_gain   = 0x2a,
 274                .chroma_ctrl2  = 0x0e,
 275                .vgate_misc    = 0x18,
 276
 277        },{
 278                .name          = "SECAM",
 279                .id            = V4L2_STD_SECAM,
 280                NORM_625_50,
 281
 282                .sync_control  = 0x18,
 283                .luma_control  = 0x1b,
 284                .chroma_ctrl1  = 0xd1,
 285                .chroma_gain   = 0x80,
 286                .chroma_ctrl2  = 0x00,
 287                .vgate_misc    = 0x1c,
 288
 289        },{
 290                .name          = "SECAM-DK",
 291                .id            = V4L2_STD_SECAM_DK,
 292                NORM_625_50,
 293
 294                .sync_control  = 0x18,
 295                .luma_control  = 0x1b,
 296                .chroma_ctrl1  = 0xd1,
 297                .chroma_gain   = 0x80,
 298                .chroma_ctrl2  = 0x00,
 299                .vgate_misc    = 0x1c,
 300
 301        },{
 302                .name          = "SECAM-L",
 303                .id            = V4L2_STD_SECAM_L,
 304                NORM_625_50,
 305
 306                .sync_control  = 0x18,
 307                .luma_control  = 0x1b,
 308                .chroma_ctrl1  = 0xd1,
 309                .chroma_gain   = 0x80,
 310                .chroma_ctrl2  = 0x00,
 311                .vgate_misc    = 0x1c,
 312
 313        },{
 314                .name          = "SECAM-Lc",
 315                .id            = V4L2_STD_SECAM_LC,
 316                NORM_625_50,
 317
 318                .sync_control  = 0x18,
 319                .luma_control  = 0x1b,
 320                .chroma_ctrl1  = 0xd1,
 321                .chroma_gain   = 0x80,
 322                .chroma_ctrl2  = 0x00,
 323                .vgate_misc    = 0x1c,
 324
 325        },{
 326                .name          = "PAL-M",
 327                .id            = V4L2_STD_PAL_M,
 328                NORM_525_60,
 329
 330                .sync_control  = 0x59,
 331                .luma_control  = 0x40,
 332                .chroma_ctrl1  = 0xb9,
 333                .chroma_gain   = 0x2a,
 334                .chroma_ctrl2  = 0x0e,
 335                .vgate_misc    = 0x18,
 336
 337        },{
 338                .name          = "PAL-Nc",
 339                .id            = V4L2_STD_PAL_Nc,
 340                NORM_625_50,
 341
 342                .sync_control  = 0x18,
 343                .luma_control  = 0x40,
 344                .chroma_ctrl1  = 0xa1,
 345                .chroma_gain   = 0x2a,
 346                .chroma_ctrl2  = 0x06,
 347                .vgate_misc    = 0x1c,
 348
 349        },{
 350                .name          = "PAL-60",
 351                .id            = V4L2_STD_PAL_60,
 352
 353                .h_start       = 0,
 354                .h_stop        = 719,
 355                .video_v_start = 23,
 356                .video_v_stop  = 262,
 357                .vbi_v_start_0 = 10,
 358                .vbi_v_stop_0  = 21,
 359                .vbi_v_start_1 = 273,
 360                .src_timing    = 7,
 361
 362                .sync_control  = 0x18,
 363                .luma_control  = 0x40,
 364                .chroma_ctrl1  = 0x81,
 365                .chroma_gain   = 0x2a,
 366                .chroma_ctrl2  = 0x06,
 367                .vgate_misc    = 0x1c,
 368        }
 369};
 370#define TVNORMS ARRAY_SIZE(tvnorms)
 371
 372static struct saa7134_format* format_by_fourcc(unsigned int fourcc)
 373{
 374        unsigned int i;
 375
 376        for (i = 0; i < FORMATS; i++)
 377                if (formats[i].fourcc == fourcc)
 378                        return formats+i;
 379        return NULL;
 380}
 381
 382/* ------------------------------------------------------------------ */
 383
 384static void set_tvnorm(struct saa7134_dev *dev, struct saa7134_tvnorm *norm)
 385{
 386        video_dbg("set tv norm = %s\n", norm->name);
 387        dev->tvnorm = norm;
 388
 389        /* setup cropping */
 390        dev->crop_bounds.left    = norm->h_start;
 391        dev->crop_defrect.left   = norm->h_start;
 392        dev->crop_bounds.width   = norm->h_stop - norm->h_start +1;
 393        dev->crop_defrect.width  = norm->h_stop - norm->h_start +1;
 394
 395        dev->crop_bounds.top     = (norm->vbi_v_stop_0+1)*2;
 396        dev->crop_defrect.top    = norm->video_v_start*2;
 397        dev->crop_bounds.height  = ((norm->id & V4L2_STD_525_60) ? 524 : 624)
 398                - dev->crop_bounds.top;
 399        dev->crop_defrect.height = (norm->video_v_stop - norm->video_v_start +1)*2;
 400
 401        dev->crop_current = dev->crop_defrect;
 402
 403        saa7134_set_tvnorm_hw(dev);
 404}
 405
 406static void video_mux(struct saa7134_dev *dev, int input)
 407{
 408        video_dbg("video input = %d [%s]\n",
 409                  input, saa7134_input_name[card_in(dev, input).type]);
 410        dev->ctl_input = input;
 411        set_tvnorm(dev, dev->tvnorm);
 412        saa7134_tvaudio_setinput(dev, &card_in(dev, input));
 413}
 414
 415
 416static void saa7134_set_decoder(struct saa7134_dev *dev)
 417{
 418        int luma_control, sync_control, chroma_ctrl1, mux;
 419
 420        struct saa7134_tvnorm *norm = dev->tvnorm;
 421        mux = card_in(dev, dev->ctl_input).vmux;
 422
 423        luma_control = norm->luma_control;
 424        sync_control = norm->sync_control;
 425        chroma_ctrl1 = norm->chroma_ctrl1;
 426
 427        if (mux > 5)
 428                luma_control |= 0x80; /* svideo */
 429        if (noninterlaced || dev->nosignal)
 430                sync_control |= 0x20;
 431
 432        /* switch on auto standard detection */
 433        sync_control |= SAA7134_SYNC_CTRL_AUFD;
 434        chroma_ctrl1 |= SAA7134_CHROMA_CTRL1_AUTO0;
 435        chroma_ctrl1 &= ~SAA7134_CHROMA_CTRL1_FCTC;
 436        luma_control &= ~SAA7134_LUMA_CTRL_LDEL;
 437
 438        /* setup video decoder */
 439        saa_writeb(SAA7134_INCR_DELAY,            0x08);
 440        saa_writeb(SAA7134_ANALOG_IN_CTRL1,       0xc0 | mux);
 441        saa_writeb(SAA7134_ANALOG_IN_CTRL2,       0x00);
 442
 443        saa_writeb(SAA7134_ANALOG_IN_CTRL3,       0x90);
 444        saa_writeb(SAA7134_ANALOG_IN_CTRL4,       0x90);
 445        saa_writeb(SAA7134_HSYNC_START,           0xeb);
 446        saa_writeb(SAA7134_HSYNC_STOP,            0xe0);
 447        saa_writeb(SAA7134_SOURCE_TIMING1,        norm->src_timing);
 448
 449        saa_writeb(SAA7134_SYNC_CTRL,             sync_control);
 450        saa_writeb(SAA7134_LUMA_CTRL,             luma_control);
 451        saa_writeb(SAA7134_DEC_LUMA_BRIGHT,       dev->ctl_bright);
 452
 453        saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
 454                dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
 455
 456        saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
 457                dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
 458
 459        saa_writeb(SAA7134_DEC_CHROMA_HUE,        dev->ctl_hue);
 460        saa_writeb(SAA7134_CHROMA_CTRL1,          chroma_ctrl1);
 461        saa_writeb(SAA7134_CHROMA_GAIN,           norm->chroma_gain);
 462
 463        saa_writeb(SAA7134_CHROMA_CTRL2,          norm->chroma_ctrl2);
 464        saa_writeb(SAA7134_MODE_DELAY_CTRL,       0x00);
 465
 466        saa_writeb(SAA7134_ANALOG_ADC,            0x01);
 467        saa_writeb(SAA7134_VGATE_START,           0x11);
 468        saa_writeb(SAA7134_VGATE_STOP,            0xfe);
 469        saa_writeb(SAA7134_MISC_VGATE_MSB,        norm->vgate_misc);
 470        saa_writeb(SAA7134_RAW_DATA_GAIN,         0x40);
 471        saa_writeb(SAA7134_RAW_DATA_OFFSET,       0x80);
 472}
 473
 474void saa7134_set_tvnorm_hw(struct saa7134_dev *dev)
 475{
 476        saa7134_set_decoder(dev);
 477
 478        saa_call_all(dev, video, s_std, dev->tvnorm->id);
 479        /* Set the correct norm for the saa6752hs. This function
 480           does nothing if there is no saa6752hs. */
 481        saa_call_empress(dev, video, s_std, dev->tvnorm->id);
 482}
 483
 484static void set_h_prescale(struct saa7134_dev *dev, int task, int prescale)
 485{
 486        static const struct {
 487                int xpsc;
 488                int xacl;
 489                int xc2_1;
 490                int xdcg;
 491                int vpfy;
 492        } vals[] = {
 493                /* XPSC XACL XC2_1 XDCG VPFY */
 494                {    1,   0,    0,    0,   0 },
 495                {    2,   2,    1,    2,   2 },
 496                {    3,   4,    1,    3,   2 },
 497                {    4,   8,    1,    4,   2 },
 498                {    5,   8,    1,    4,   2 },
 499                {    6,   8,    1,    4,   3 },
 500                {    7,   8,    1,    4,   3 },
 501                {    8,  15,    0,    4,   3 },
 502                {    9,  15,    0,    4,   3 },
 503                {   10,  16,    1,    5,   3 },
 504        };
 505        static const int count = ARRAY_SIZE(vals);
 506        int i;
 507
 508        for (i = 0; i < count; i++)
 509                if (vals[i].xpsc == prescale)
 510                        break;
 511        if (i == count)
 512                return;
 513
 514        saa_writeb(SAA7134_H_PRESCALE(task), vals[i].xpsc);
 515        saa_writeb(SAA7134_ACC_LENGTH(task), vals[i].xacl);
 516        saa_writeb(SAA7134_LEVEL_CTRL(task),
 517                   (vals[i].xc2_1 << 3) | (vals[i].xdcg));
 518        saa_andorb(SAA7134_FIR_PREFILTER_CTRL(task), 0x0f,
 519                   (vals[i].vpfy << 2) | vals[i].vpfy);
 520}
 521
 522static void set_v_scale(struct saa7134_dev *dev, int task, int yscale)
 523{
 524        int val,mirror;
 525
 526        saa_writeb(SAA7134_V_SCALE_RATIO1(task), yscale &  0xff);
 527        saa_writeb(SAA7134_V_SCALE_RATIO2(task), yscale >> 8);
 528
 529        mirror = (dev->ctl_mirror) ? 0x02 : 0x00;
 530        if (yscale < 2048) {
 531                /* LPI */
 532                video_dbg("yscale LPI yscale=%d\n", yscale);
 533                saa_writeb(SAA7134_V_FILTER(task), 0x00 | mirror);
 534                saa_writeb(SAA7134_LUMA_CONTRAST(task), 0x40);
 535                saa_writeb(SAA7134_CHROMA_SATURATION(task), 0x40);
 536        } else {
 537                /* ACM */
 538                val = 0x40 * 1024 / yscale;
 539                video_dbg("yscale ACM yscale=%d val=0x%x\n", yscale, val);
 540                saa_writeb(SAA7134_V_FILTER(task), 0x01 | mirror);
 541                saa_writeb(SAA7134_LUMA_CONTRAST(task), val);
 542                saa_writeb(SAA7134_CHROMA_SATURATION(task), val);
 543        }
 544        saa_writeb(SAA7134_LUMA_BRIGHT(task),       0x80);
 545}
 546
 547static void set_size(struct saa7134_dev *dev, int task,
 548                     int width, int height, int interlace)
 549{
 550        int prescale,xscale,yscale,y_even,y_odd;
 551        int h_start, h_stop, v_start, v_stop;
 552        int div = interlace ? 2 : 1;
 553
 554        /* setup video scaler */
 555        h_start = dev->crop_current.left;
 556        v_start = dev->crop_current.top/2;
 557        h_stop  = (dev->crop_current.left + dev->crop_current.width -1);
 558        v_stop  = (dev->crop_current.top + dev->crop_current.height -1)/2;
 559
 560        saa_writeb(SAA7134_VIDEO_H_START1(task), h_start &  0xff);
 561        saa_writeb(SAA7134_VIDEO_H_START2(task), h_start >> 8);
 562        saa_writeb(SAA7134_VIDEO_H_STOP1(task),  h_stop  &  0xff);
 563        saa_writeb(SAA7134_VIDEO_H_STOP2(task),  h_stop  >> 8);
 564        saa_writeb(SAA7134_VIDEO_V_START1(task), v_start &  0xff);
 565        saa_writeb(SAA7134_VIDEO_V_START2(task), v_start >> 8);
 566        saa_writeb(SAA7134_VIDEO_V_STOP1(task),  v_stop  &  0xff);
 567        saa_writeb(SAA7134_VIDEO_V_STOP2(task),  v_stop  >> 8);
 568
 569        prescale = dev->crop_current.width / width;
 570        if (0 == prescale)
 571                prescale = 1;
 572        xscale = 1024 * dev->crop_current.width / prescale / width;
 573        yscale = 512 * div * dev->crop_current.height / height;
 574        video_dbg("prescale=%d xscale=%d yscale=%d\n",
 575                  prescale, xscale, yscale);
 576        set_h_prescale(dev,task,prescale);
 577        saa_writeb(SAA7134_H_SCALE_INC1(task),      xscale &  0xff);
 578        saa_writeb(SAA7134_H_SCALE_INC2(task),      xscale >> 8);
 579        set_v_scale(dev,task,yscale);
 580
 581        saa_writeb(SAA7134_VIDEO_PIXELS1(task),     width  & 0xff);
 582        saa_writeb(SAA7134_VIDEO_PIXELS2(task),     width  >> 8);
 583        saa_writeb(SAA7134_VIDEO_LINES1(task),      height/div & 0xff);
 584        saa_writeb(SAA7134_VIDEO_LINES2(task),      height/div >> 8);
 585
 586        /* deinterlace y offsets */
 587        y_odd  = dev->ctl_y_odd;
 588        y_even = dev->ctl_y_even;
 589        saa_writeb(SAA7134_V_PHASE_OFFSET0(task), y_odd);
 590        saa_writeb(SAA7134_V_PHASE_OFFSET1(task), y_even);
 591        saa_writeb(SAA7134_V_PHASE_OFFSET2(task), y_odd);
 592        saa_writeb(SAA7134_V_PHASE_OFFSET3(task), y_even);
 593}
 594
 595/* ------------------------------------------------------------------ */
 596
 597struct cliplist {
 598        __u16 position;
 599        __u8  enable;
 600        __u8  disable;
 601};
 602
 603static void set_cliplist(struct saa7134_dev *dev, int reg,
 604                        struct cliplist *cl, int entries, char *name)
 605{
 606        __u8 winbits = 0;
 607        int i;
 608
 609        for (i = 0; i < entries; i++) {
 610                winbits |= cl[i].enable;
 611                winbits &= ~cl[i].disable;
 612                if (i < 15 && cl[i].position == cl[i+1].position)
 613                        continue;
 614                saa_writeb(reg + 0, winbits);
 615                saa_writeb(reg + 2, cl[i].position & 0xff);
 616                saa_writeb(reg + 3, cl[i].position >> 8);
 617                video_dbg("clip: %s winbits=%02x pos=%d\n",
 618                        name,winbits,cl[i].position);
 619                reg += 8;
 620        }
 621        for (; reg < 0x400; reg += 8) {
 622                saa_writeb(reg+ 0, 0);
 623                saa_writeb(reg + 1, 0);
 624                saa_writeb(reg + 2, 0);
 625                saa_writeb(reg + 3, 0);
 626        }
 627}
 628
 629static int clip_range(int val)
 630{
 631        if (val < 0)
 632                val = 0;
 633        return val;
 634}
 635
 636/* Sort into smallest position first order */
 637static int cliplist_cmp(const void *a, const void *b)
 638{
 639        const struct cliplist *cla = a;
 640        const struct cliplist *clb = b;
 641        if (cla->position < clb->position)
 642                return -1;
 643        if (cla->position > clb->position)
 644                return 1;
 645        return 0;
 646}
 647
 648static int setup_clipping(struct saa7134_dev *dev, struct v4l2_clip *clips,
 649                          int nclips, int interlace)
 650{
 651        struct cliplist col[16], row[16];
 652        int cols = 0, rows = 0, i;
 653        int div = interlace ? 2 : 1;
 654
 655        memset(col, 0, sizeof(col));
 656        memset(row, 0, sizeof(row));
 657        for (i = 0; i < nclips && i < 8; i++) {
 658                col[cols].position = clip_range(clips[i].c.left);
 659                col[cols].enable   = (1 << i);
 660                cols++;
 661                col[cols].position = clip_range(clips[i].c.left+clips[i].c.width);
 662                col[cols].disable  = (1 << i);
 663                cols++;
 664                row[rows].position = clip_range(clips[i].c.top / div);
 665                row[rows].enable   = (1 << i);
 666                rows++;
 667                row[rows].position = clip_range((clips[i].c.top + clips[i].c.height)
 668                                                / div);
 669                row[rows].disable  = (1 << i);
 670                rows++;
 671        }
 672        sort(col, cols, sizeof col[0], cliplist_cmp, NULL);
 673        sort(row, rows, sizeof row[0], cliplist_cmp, NULL);
 674        set_cliplist(dev,0x380,col,cols,"cols");
 675        set_cliplist(dev,0x384,row,rows,"rows");
 676        return 0;
 677}
 678
 679static int verify_preview(struct saa7134_dev *dev, struct v4l2_window *win, bool try)
 680{
 681        enum v4l2_field field;
 682        int maxw, maxh;
 683
 684        if (!try && (dev->ovbuf.base == NULL || dev->ovfmt == NULL))
 685                return -EINVAL;
 686        if (win->w.width < 48)
 687                win->w.width = 48;
 688        if (win->w.height < 32)
 689                win->w.height = 32;
 690        if (win->clipcount > 8)
 691                win->clipcount = 8;
 692
 693        win->chromakey = 0;
 694        win->global_alpha = 0;
 695        field = win->field;
 696        maxw  = dev->crop_current.width;
 697        maxh  = dev->crop_current.height;
 698
 699        if (V4L2_FIELD_ANY == field) {
 700                field = (win->w.height > maxh/2)
 701                        ? V4L2_FIELD_INTERLACED
 702                        : V4L2_FIELD_TOP;
 703        }
 704        switch (field) {
 705        case V4L2_FIELD_TOP:
 706        case V4L2_FIELD_BOTTOM:
 707                maxh = maxh / 2;
 708                break;
 709        default:
 710                field = V4L2_FIELD_INTERLACED;
 711                break;
 712        }
 713
 714        win->field = field;
 715        if (win->w.width > maxw)
 716                win->w.width = maxw;
 717        if (win->w.height > maxh)
 718                win->w.height = maxh;
 719        return 0;
 720}
 721
 722static int start_preview(struct saa7134_dev *dev)
 723{
 724        unsigned long base,control,bpl;
 725        int err;
 726
 727        err = verify_preview(dev, &dev->win, false);
 728        if (0 != err)
 729                return err;
 730
 731        dev->ovfield = dev->win.field;
 732        video_dbg("start_preview %dx%d+%d+%d %s field=%s\n",
 733                dev->win.w.width, dev->win.w.height,
 734                dev->win.w.left, dev->win.w.top,
 735                dev->ovfmt->name, v4l2_field_names[dev->ovfield]);
 736
 737        /* setup window + clipping */
 738        set_size(dev, TASK_B, dev->win.w.width, dev->win.w.height,
 739                 V4L2_FIELD_HAS_BOTH(dev->ovfield));
 740        setup_clipping(dev, dev->clips, dev->nclips,
 741                       V4L2_FIELD_HAS_BOTH(dev->ovfield));
 742        if (dev->ovfmt->yuv)
 743                saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x03);
 744        else
 745                saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x01);
 746        saa_writeb(SAA7134_OFMT_VIDEO_B, dev->ovfmt->pm | 0x20);
 747
 748        /* dma: setup channel 1 (= Video Task B) */
 749        base  = (unsigned long)dev->ovbuf.base;
 750        base += dev->ovbuf.fmt.bytesperline * dev->win.w.top;
 751        base += dev->ovfmt->depth/8         * dev->win.w.left;
 752        bpl   = dev->ovbuf.fmt.bytesperline;
 753        control = SAA7134_RS_CONTROL_BURST_16;
 754        if (dev->ovfmt->bswap)
 755                control |= SAA7134_RS_CONTROL_BSWAP;
 756        if (dev->ovfmt->wswap)
 757                control |= SAA7134_RS_CONTROL_WSWAP;
 758        if (V4L2_FIELD_HAS_BOTH(dev->ovfield)) {
 759                saa_writel(SAA7134_RS_BA1(1),base);
 760                saa_writel(SAA7134_RS_BA2(1),base+bpl);
 761                saa_writel(SAA7134_RS_PITCH(1),bpl*2);
 762                saa_writel(SAA7134_RS_CONTROL(1),control);
 763        } else {
 764                saa_writel(SAA7134_RS_BA1(1),base);
 765                saa_writel(SAA7134_RS_BA2(1),base);
 766                saa_writel(SAA7134_RS_PITCH(1),bpl);
 767                saa_writel(SAA7134_RS_CONTROL(1),control);
 768        }
 769
 770        /* start dma */
 771        dev->ovenable = 1;
 772        saa7134_set_dmabits(dev);
 773
 774        return 0;
 775}
 776
 777static int stop_preview(struct saa7134_dev *dev)
 778{
 779        dev->ovenable = 0;
 780        saa7134_set_dmabits(dev);
 781        return 0;
 782}
 783
 784/*
 785 * Media Controller helper functions
 786 */
 787
 788static int saa7134_enable_analog_tuner(struct saa7134_dev *dev)
 789{
 790#ifdef CONFIG_MEDIA_CONTROLLER
 791        struct media_device *mdev = dev->media_dev;
 792        struct media_entity *source;
 793        struct media_link *link, *found_link = NULL;
 794        int ret, active_links = 0;
 795
 796        if (!mdev || !dev->decoder)
 797                return 0;
 798
 799        /*
 800         * This will find the tuner that is connected into the decoder.
 801         * Technically, this is not 100% correct, as the device may be
 802         * using an analog input instead of the tuner. However, as we can't
 803         * do DVB streaming while the DMA engine is being used for V4L2,
 804         * this should be enough for the actual needs.
 805         */
 806        list_for_each_entry(link, &dev->decoder->links, list) {
 807                if (link->sink->entity == dev->decoder) {
 808                        found_link = link;
 809                        if (link->flags & MEDIA_LNK_FL_ENABLED)
 810                                active_links++;
 811                        break;
 812                }
 813        }
 814
 815        if (active_links == 1 || !found_link)
 816                return 0;
 817
 818        source = found_link->source->entity;
 819        list_for_each_entry(link, &source->links, list) {
 820                struct media_entity *sink;
 821                int flags = 0;
 822
 823                sink = link->sink->entity;
 824
 825                if (sink == dev->decoder)
 826                        flags = MEDIA_LNK_FL_ENABLED;
 827
 828                ret = media_entity_setup_link(link, flags);
 829                if (ret) {
 830                        pr_err("Couldn't change link %s->%s to %s. Error %d\n",
 831                               source->name, sink->name,
 832                               flags ? "enabled" : "disabled",
 833                               ret);
 834                        return ret;
 835                }
 836        }
 837#endif
 838        return 0;
 839}
 840
 841/* ------------------------------------------------------------------ */
 842
 843static int buffer_activate(struct saa7134_dev *dev,
 844                           struct saa7134_buf *buf,
 845                           struct saa7134_buf *next)
 846{
 847        struct saa7134_dmaqueue *dmaq = buf->vb2.vb2_buf.vb2_queue->drv_priv;
 848        unsigned long base,control,bpl;
 849        unsigned long bpl_uv,lines_uv,base2,base3,tmp; /* planar */
 850
 851        video_dbg("buffer_activate buf=%p\n", buf);
 852        buf->top_seen = 0;
 853
 854        set_size(dev, TASK_A, dev->width, dev->height,
 855                 V4L2_FIELD_HAS_BOTH(dev->field));
 856        if (dev->fmt->yuv)
 857                saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x03);
 858        else
 859                saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x01);
 860        saa_writeb(SAA7134_OFMT_VIDEO_A, dev->fmt->pm);
 861
 862        /* DMA: setup channel 0 (= Video Task A0) */
 863        base  = saa7134_buffer_base(buf);
 864        if (dev->fmt->planar)
 865                bpl = dev->width;
 866        else
 867                bpl = (dev->width * dev->fmt->depth) / 8;
 868        control = SAA7134_RS_CONTROL_BURST_16 |
 869                SAA7134_RS_CONTROL_ME |
 870                (dmaq->pt.dma >> 12);
 871        if (dev->fmt->bswap)
 872                control |= SAA7134_RS_CONTROL_BSWAP;
 873        if (dev->fmt->wswap)
 874                control |= SAA7134_RS_CONTROL_WSWAP;
 875        if (V4L2_FIELD_HAS_BOTH(dev->field)) {
 876                /* interlaced */
 877                saa_writel(SAA7134_RS_BA1(0),base);
 878                saa_writel(SAA7134_RS_BA2(0),base+bpl);
 879                saa_writel(SAA7134_RS_PITCH(0),bpl*2);
 880        } else {
 881                /* non-interlaced */
 882                saa_writel(SAA7134_RS_BA1(0),base);
 883                saa_writel(SAA7134_RS_BA2(0),base);
 884                saa_writel(SAA7134_RS_PITCH(0),bpl);
 885        }
 886        saa_writel(SAA7134_RS_CONTROL(0),control);
 887
 888        if (dev->fmt->planar) {
 889                /* DMA: setup channel 4+5 (= planar task A) */
 890                bpl_uv   = bpl >> dev->fmt->hshift;
 891                lines_uv = dev->height >> dev->fmt->vshift;
 892                base2    = base + bpl * dev->height;
 893                base3    = base2 + bpl_uv * lines_uv;
 894                if (dev->fmt->uvswap)
 895                        tmp = base2, base2 = base3, base3 = tmp;
 896                video_dbg("uv: bpl=%ld lines=%ld base2/3=%ld/%ld\n",
 897                        bpl_uv,lines_uv,base2,base3);
 898                if (V4L2_FIELD_HAS_BOTH(dev->field)) {
 899                        /* interlaced */
 900                        saa_writel(SAA7134_RS_BA1(4),base2);
 901                        saa_writel(SAA7134_RS_BA2(4),base2+bpl_uv);
 902                        saa_writel(SAA7134_RS_PITCH(4),bpl_uv*2);
 903                        saa_writel(SAA7134_RS_BA1(5),base3);
 904                        saa_writel(SAA7134_RS_BA2(5),base3+bpl_uv);
 905                        saa_writel(SAA7134_RS_PITCH(5),bpl_uv*2);
 906                } else {
 907                        /* non-interlaced */
 908                        saa_writel(SAA7134_RS_BA1(4),base2);
 909                        saa_writel(SAA7134_RS_BA2(4),base2);
 910                        saa_writel(SAA7134_RS_PITCH(4),bpl_uv);
 911                        saa_writel(SAA7134_RS_BA1(5),base3);
 912                        saa_writel(SAA7134_RS_BA2(5),base3);
 913                        saa_writel(SAA7134_RS_PITCH(5),bpl_uv);
 914                }
 915                saa_writel(SAA7134_RS_CONTROL(4),control);
 916                saa_writel(SAA7134_RS_CONTROL(5),control);
 917        }
 918
 919        /* start DMA */
 920        saa7134_set_dmabits(dev);
 921        mod_timer(&dmaq->timeout, jiffies + BUFFER_TIMEOUT);
 922        return 0;
 923}
 924
 925static int buffer_init(struct vb2_buffer *vb2)
 926{
 927        struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
 928        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
 929        struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 930
 931        dmaq->curr = NULL;
 932        buf->activate = buffer_activate;
 933        return 0;
 934}
 935
 936static int buffer_prepare(struct vb2_buffer *vb2)
 937{
 938        struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
 939        struct saa7134_dev *dev = dmaq->dev;
 940        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
 941        struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 942        struct sg_table *dma = vb2_dma_sg_plane_desc(vb2, 0);
 943        unsigned int size;
 944
 945        if (dma->sgl->offset) {
 946                pr_err("The buffer is not page-aligned\n");
 947                return -EINVAL;
 948        }
 949        size = (dev->width * dev->height * dev->fmt->depth) >> 3;
 950        if (vb2_plane_size(vb2, 0) < size)
 951                return -EINVAL;
 952
 953        vb2_set_plane_payload(vb2, 0, size);
 954        vbuf->field = dev->field;
 955
 956        return saa7134_pgtable_build(dev->pci, &dmaq->pt, dma->sgl, dma->nents,
 957                                    saa7134_buffer_startpage(buf));
 958}
 959
 960static int queue_setup(struct vb2_queue *q,
 961                           unsigned int *nbuffers, unsigned int *nplanes,
 962                           unsigned int sizes[], struct device *alloc_devs[])
 963{
 964        struct saa7134_dmaqueue *dmaq = q->drv_priv;
 965        struct saa7134_dev *dev = dmaq->dev;
 966        int size = dev->fmt->depth * dev->width * dev->height >> 3;
 967
 968        if (dev->width    < 48 ||
 969            dev->height   < 32 ||
 970            dev->width/4  > dev->crop_current.width  ||
 971            dev->height/4 > dev->crop_current.height ||
 972            dev->width    > dev->crop_bounds.width  ||
 973            dev->height   > dev->crop_bounds.height)
 974                return -EINVAL;
 975
 976        *nbuffers = saa7134_buffer_count(size, *nbuffers);
 977        *nplanes = 1;
 978        sizes[0] = size;
 979
 980        saa7134_enable_analog_tuner(dev);
 981
 982        return 0;
 983}
 984
 985/*
 986 * move buffer to hardware queue
 987 */
 988void saa7134_vb2_buffer_queue(struct vb2_buffer *vb)
 989{
 990        struct saa7134_dmaqueue *dmaq = vb->vb2_queue->drv_priv;
 991        struct saa7134_dev *dev = dmaq->dev;
 992        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 993        struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 994
 995        saa7134_buffer_queue(dev, dmaq, buf);
 996}
 997EXPORT_SYMBOL_GPL(saa7134_vb2_buffer_queue);
 998
 999int saa7134_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
1000{
1001        struct saa7134_dmaqueue *dmaq = vq->drv_priv;
1002        struct saa7134_dev *dev = dmaq->dev;
1003
1004        /*
1005         * Planar video capture and TS share the same DMA channel,
1006         * so only one can be active at a time.
1007         */
1008        if (card_is_empress(dev) && vb2_is_busy(&dev->empress_vbq) &&
1009            dmaq == &dev->video_q && dev->fmt->planar) {
1010                struct saa7134_buf *buf, *tmp;
1011
1012                list_for_each_entry_safe(buf, tmp, &dmaq->queue, entry) {
1013                        list_del(&buf->entry);
1014                        vb2_buffer_done(&buf->vb2.vb2_buf,
1015                                        VB2_BUF_STATE_QUEUED);
1016                }
1017                if (dmaq->curr) {
1018                        vb2_buffer_done(&dmaq->curr->vb2.vb2_buf,
1019                                        VB2_BUF_STATE_QUEUED);
1020                        dmaq->curr = NULL;
1021                }
1022                return -EBUSY;
1023        }
1024
1025        /* The SAA7134 has a 1K FIFO; the datasheet suggests that when
1026         * configured conservatively, there's 22 usec of buffering for video.
1027         * We therefore request a DMA latency of 20 usec, giving us 2 usec of
1028         * margin in case the FIFO is configured differently to the datasheet.
1029         * Unfortunately, I lack register-level documentation to check the
1030         * Linux FIFO setup and confirm the perfect value.
1031         */
1032        if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
1033            (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
1034                pm_qos_add_request(&dev->qos_request,
1035                        PM_QOS_CPU_DMA_LATENCY, 20);
1036        dmaq->seq_nr = 0;
1037
1038        return 0;
1039}
1040
1041void saa7134_vb2_stop_streaming(struct vb2_queue *vq)
1042{
1043        struct saa7134_dmaqueue *dmaq = vq->drv_priv;
1044        struct saa7134_dev *dev = dmaq->dev;
1045
1046        saa7134_stop_streaming(dev, dmaq);
1047
1048        if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
1049            (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
1050                pm_qos_remove_request(&dev->qos_request);
1051}
1052
1053static const struct vb2_ops vb2_qops = {
1054        .queue_setup    = queue_setup,
1055        .buf_init       = buffer_init,
1056        .buf_prepare    = buffer_prepare,
1057        .buf_queue      = saa7134_vb2_buffer_queue,
1058        .wait_prepare   = vb2_ops_wait_prepare,
1059        .wait_finish    = vb2_ops_wait_finish,
1060        .start_streaming = saa7134_vb2_start_streaming,
1061        .stop_streaming = saa7134_vb2_stop_streaming,
1062};
1063
1064/* ------------------------------------------------------------------ */
1065
1066static int saa7134_s_ctrl(struct v4l2_ctrl *ctrl)
1067{
1068        struct saa7134_dev *dev = container_of(ctrl->handler, struct saa7134_dev, ctrl_handler);
1069        unsigned long flags;
1070        int restart_overlay = 0;
1071
1072        switch (ctrl->id) {
1073        case V4L2_CID_BRIGHTNESS:
1074                dev->ctl_bright = ctrl->val;
1075                saa_writeb(SAA7134_DEC_LUMA_BRIGHT, ctrl->val);
1076                break;
1077        case V4L2_CID_HUE:
1078                dev->ctl_hue = ctrl->val;
1079                saa_writeb(SAA7134_DEC_CHROMA_HUE, ctrl->val);
1080                break;
1081        case V4L2_CID_CONTRAST:
1082                dev->ctl_contrast = ctrl->val;
1083                saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1084                           dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1085                break;
1086        case V4L2_CID_SATURATION:
1087                dev->ctl_saturation = ctrl->val;
1088                saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1089                           dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1090                break;
1091        case V4L2_CID_AUDIO_MUTE:
1092                dev->ctl_mute = ctrl->val;
1093                saa7134_tvaudio_setmute(dev);
1094                break;
1095        case V4L2_CID_AUDIO_VOLUME:
1096                dev->ctl_volume = ctrl->val;
1097                saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
1098                break;
1099        case V4L2_CID_PRIVATE_INVERT:
1100                dev->ctl_invert = ctrl->val;
1101                saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1102                           dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1103                saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1104                           dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1105                break;
1106        case V4L2_CID_HFLIP:
1107                dev->ctl_mirror = ctrl->val;
1108                restart_overlay = 1;
1109                break;
1110        case V4L2_CID_PRIVATE_Y_EVEN:
1111                dev->ctl_y_even = ctrl->val;
1112                restart_overlay = 1;
1113                break;
1114        case V4L2_CID_PRIVATE_Y_ODD:
1115                dev->ctl_y_odd = ctrl->val;
1116                restart_overlay = 1;
1117                break;
1118        case V4L2_CID_PRIVATE_AUTOMUTE:
1119        {
1120                struct v4l2_priv_tun_config tda9887_cfg;
1121
1122                tda9887_cfg.tuner = TUNER_TDA9887;
1123                tda9887_cfg.priv = &dev->tda9887_conf;
1124
1125                dev->ctl_automute = ctrl->val;
1126                if (dev->tda9887_conf) {
1127                        if (dev->ctl_automute)
1128                                dev->tda9887_conf |= TDA9887_AUTOMUTE;
1129                        else
1130                                dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
1131
1132                        saa_call_all(dev, tuner, s_config, &tda9887_cfg);
1133                }
1134                break;
1135        }
1136        default:
1137                return -EINVAL;
1138        }
1139        if (restart_overlay && dev->overlay_owner) {
1140                spin_lock_irqsave(&dev->slock, flags);
1141                stop_preview(dev);
1142                start_preview(dev);
1143                spin_unlock_irqrestore(&dev->slock, flags);
1144        }
1145        return 0;
1146}
1147
1148/* ------------------------------------------------------------------ */
1149
1150static int video_open(struct file *file)
1151{
1152        struct video_device *vdev = video_devdata(file);
1153        struct saa7134_dev *dev = video_drvdata(file);
1154        int ret = v4l2_fh_open(file);
1155
1156        if (ret < 0)
1157                return ret;
1158
1159        mutex_lock(&dev->lock);
1160        if (vdev->vfl_type == VFL_TYPE_RADIO) {
1161                /* switch to radio mode */
1162                saa7134_tvaudio_setinput(dev, &card(dev).radio);
1163                saa_call_all(dev, tuner, s_radio);
1164        } else {
1165                /* switch to video/vbi mode */
1166                video_mux(dev, dev->ctl_input);
1167        }
1168        mutex_unlock(&dev->lock);
1169
1170        return 0;
1171}
1172
1173static int video_release(struct file *file)
1174{
1175        struct video_device *vdev = video_devdata(file);
1176        struct saa7134_dev *dev = video_drvdata(file);
1177        struct v4l2_fh *fh = file->private_data;
1178        struct saa6588_command cmd;
1179        unsigned long flags;
1180
1181        mutex_lock(&dev->lock);
1182        saa7134_tvaudio_close(dev);
1183
1184        /* turn off overlay */
1185        if (fh == dev->overlay_owner) {
1186                spin_lock_irqsave(&dev->slock,flags);
1187                stop_preview(dev);
1188                spin_unlock_irqrestore(&dev->slock,flags);
1189                dev->overlay_owner = NULL;
1190        }
1191
1192        if (vdev->vfl_type == VFL_TYPE_RADIO)
1193                v4l2_fh_release(file);
1194        else
1195                _vb2_fop_release(file, NULL);
1196
1197        /* ts-capture will not work in planar mode, so turn it off Hac: 04.05*/
1198        saa_andorb(SAA7134_OFMT_VIDEO_A, 0x1f, 0);
1199        saa_andorb(SAA7134_OFMT_VIDEO_B, 0x1f, 0);
1200        saa_andorb(SAA7134_OFMT_DATA_A, 0x1f, 0);
1201        saa_andorb(SAA7134_OFMT_DATA_B, 0x1f, 0);
1202
1203        saa_call_all(dev, tuner, standby);
1204        if (vdev->vfl_type == VFL_TYPE_RADIO)
1205                saa_call_all(dev, core, ioctl, SAA6588_CMD_CLOSE, &cmd);
1206        mutex_unlock(&dev->lock);
1207
1208        return 0;
1209}
1210
1211static ssize_t radio_read(struct file *file, char __user *data,
1212                         size_t count, loff_t *ppos)
1213{
1214        struct saa7134_dev *dev = video_drvdata(file);
1215        struct saa6588_command cmd;
1216
1217        cmd.block_count = count/3;
1218        cmd.nonblocking = file->f_flags & O_NONBLOCK;
1219        cmd.buffer = data;
1220        cmd.instance = file;
1221        cmd.result = -ENODEV;
1222
1223        mutex_lock(&dev->lock);
1224        saa_call_all(dev, core, ioctl, SAA6588_CMD_READ, &cmd);
1225        mutex_unlock(&dev->lock);
1226
1227        return cmd.result;
1228}
1229
1230static __poll_t radio_poll(struct file *file, poll_table *wait)
1231{
1232        struct saa7134_dev *dev = video_drvdata(file);
1233        struct saa6588_command cmd;
1234        __poll_t rc = v4l2_ctrl_poll(file, wait);
1235
1236        cmd.instance = file;
1237        cmd.event_list = wait;
1238        cmd.poll_mask = 0;
1239        mutex_lock(&dev->lock);
1240        saa_call_all(dev, core, ioctl, SAA6588_CMD_POLL, &cmd);
1241        mutex_unlock(&dev->lock);
1242
1243        return rc | cmd.poll_mask;
1244}
1245
1246/* ------------------------------------------------------------------ */
1247
1248static int saa7134_try_get_set_fmt_vbi_cap(struct file *file, void *priv,
1249                                                struct v4l2_format *f)
1250{
1251        struct saa7134_dev *dev = video_drvdata(file);
1252        struct saa7134_tvnorm *norm = dev->tvnorm;
1253
1254        memset(&f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1255        f->fmt.vbi.sampling_rate = 6750000 * 4;
1256        f->fmt.vbi.samples_per_line = 2048 /* VBI_LINE_LENGTH */;
1257        f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1258        f->fmt.vbi.offset = 64 * 4;
1259        f->fmt.vbi.start[0] = norm->vbi_v_start_0;
1260        f->fmt.vbi.count[0] = norm->vbi_v_stop_0 - norm->vbi_v_start_0 +1;
1261        f->fmt.vbi.start[1] = norm->vbi_v_start_1;
1262        f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1263        f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
1264
1265        return 0;
1266}
1267
1268static int saa7134_g_fmt_vid_cap(struct file *file, void *priv,
1269                                struct v4l2_format *f)
1270{
1271        struct saa7134_dev *dev = video_drvdata(file);
1272
1273        f->fmt.pix.width        = dev->width;
1274        f->fmt.pix.height       = dev->height;
1275        f->fmt.pix.field        = dev->field;
1276        f->fmt.pix.pixelformat  = dev->fmt->fourcc;
1277        if (dev->fmt->planar)
1278                f->fmt.pix.bytesperline = f->fmt.pix.width;
1279        else
1280                f->fmt.pix.bytesperline =
1281                        (f->fmt.pix.width * dev->fmt->depth) / 8;
1282        f->fmt.pix.sizeimage =
1283                (f->fmt.pix.height * f->fmt.pix.width * dev->fmt->depth) / 8;
1284        f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
1285        return 0;
1286}
1287
1288static int saa7134_g_fmt_vid_overlay(struct file *file, void *priv,
1289                                struct v4l2_format *f)
1290{
1291        struct saa7134_dev *dev = video_drvdata(file);
1292        struct v4l2_clip __user *clips = f->fmt.win.clips;
1293        u32 clipcount = f->fmt.win.clipcount;
1294        int err = 0;
1295        int i;
1296
1297        if (saa7134_no_overlay > 0) {
1298                pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1299                return -EINVAL;
1300        }
1301        f->fmt.win = dev->win;
1302        f->fmt.win.clips = clips;
1303        if (clips == NULL)
1304                clipcount = 0;
1305        if (dev->nclips < clipcount)
1306                clipcount = dev->nclips;
1307        f->fmt.win.clipcount = clipcount;
1308
1309        for (i = 0; !err && i < clipcount; i++) {
1310                if (copy_to_user(&f->fmt.win.clips[i].c, &dev->clips[i].c,
1311                                        sizeof(struct v4l2_rect)))
1312                        err = -EFAULT;
1313        }
1314
1315        return err;
1316}
1317
1318static int saa7134_try_fmt_vid_cap(struct file *file, void *priv,
1319                                                struct v4l2_format *f)
1320{
1321        struct saa7134_dev *dev = video_drvdata(file);
1322        struct saa7134_format *fmt;
1323        enum v4l2_field field;
1324        unsigned int maxw, maxh;
1325
1326        fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1327        if (NULL == fmt)
1328                return -EINVAL;
1329
1330        field = f->fmt.pix.field;
1331        maxw  = min(dev->crop_current.width*4,  dev->crop_bounds.width);
1332        maxh  = min(dev->crop_current.height*4, dev->crop_bounds.height);
1333
1334        if (V4L2_FIELD_ANY == field) {
1335                field = (f->fmt.pix.height > maxh/2)
1336                        ? V4L2_FIELD_INTERLACED
1337                        : V4L2_FIELD_BOTTOM;
1338        }
1339        switch (field) {
1340        case V4L2_FIELD_TOP:
1341        case V4L2_FIELD_BOTTOM:
1342                maxh = maxh / 2;
1343                break;
1344        default:
1345                field = V4L2_FIELD_INTERLACED;
1346                break;
1347        }
1348
1349        f->fmt.pix.field = field;
1350        if (f->fmt.pix.width  < 48)
1351                f->fmt.pix.width  = 48;
1352        if (f->fmt.pix.height < 32)
1353                f->fmt.pix.height = 32;
1354        if (f->fmt.pix.width > maxw)
1355                f->fmt.pix.width = maxw;
1356        if (f->fmt.pix.height > maxh)
1357                f->fmt.pix.height = maxh;
1358        f->fmt.pix.width &= ~0x03;
1359        if (fmt->planar)
1360                f->fmt.pix.bytesperline = f->fmt.pix.width;
1361        else
1362                f->fmt.pix.bytesperline =
1363                        (f->fmt.pix.width * fmt->depth) / 8;
1364        f->fmt.pix.sizeimage =
1365                (f->fmt.pix.height * f->fmt.pix.width * fmt->depth) / 8;
1366        f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
1367
1368        return 0;
1369}
1370
1371static int saa7134_try_fmt_vid_overlay(struct file *file, void *priv,
1372                                                struct v4l2_format *f)
1373{
1374        struct saa7134_dev *dev = video_drvdata(file);
1375
1376        if (saa7134_no_overlay > 0) {
1377                pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1378                return -EINVAL;
1379        }
1380
1381        if (f->fmt.win.clips == NULL)
1382                f->fmt.win.clipcount = 0;
1383        return verify_preview(dev, &f->fmt.win, true);
1384}
1385
1386static int saa7134_s_fmt_vid_cap(struct file *file, void *priv,
1387                                        struct v4l2_format *f)
1388{
1389        struct saa7134_dev *dev = video_drvdata(file);
1390        int err;
1391
1392        err = saa7134_try_fmt_vid_cap(file, priv, f);
1393        if (0 != err)
1394                return err;
1395
1396        dev->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1397        dev->width = f->fmt.pix.width;
1398        dev->height = f->fmt.pix.height;
1399        dev->field = f->fmt.pix.field;
1400        return 0;
1401}
1402
1403static int saa7134_s_fmt_vid_overlay(struct file *file, void *priv,
1404                                        struct v4l2_format *f)
1405{
1406        struct saa7134_dev *dev = video_drvdata(file);
1407        int err;
1408        unsigned long flags;
1409
1410        if (saa7134_no_overlay > 0) {
1411                pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1412                return -EINVAL;
1413        }
1414        if (f->fmt.win.clips == NULL)
1415                f->fmt.win.clipcount = 0;
1416        err = verify_preview(dev, &f->fmt.win, true);
1417        if (0 != err)
1418                return err;
1419
1420        dev->win    = f->fmt.win;
1421        dev->nclips = f->fmt.win.clipcount;
1422
1423        if (copy_from_user(dev->clips, f->fmt.win.clips,
1424                           sizeof(struct v4l2_clip) * dev->nclips))
1425                return -EFAULT;
1426
1427        if (priv == dev->overlay_owner) {
1428                spin_lock_irqsave(&dev->slock, flags);
1429                stop_preview(dev);
1430                start_preview(dev);
1431                spin_unlock_irqrestore(&dev->slock, flags);
1432        }
1433
1434        return 0;
1435}
1436
1437int saa7134_enum_input(struct file *file, void *priv, struct v4l2_input *i)
1438{
1439        struct saa7134_dev *dev = video_drvdata(file);
1440        unsigned int n;
1441
1442        n = i->index;
1443        if (n >= SAA7134_INPUT_MAX)
1444                return -EINVAL;
1445        if (card_in(dev, i->index).type == SAA7134_NO_INPUT)
1446                return -EINVAL;
1447        i->index = n;
1448        strcpy(i->name, saa7134_input_name[card_in(dev, n).type]);
1449        switch (card_in(dev, n).type) {
1450        case SAA7134_INPUT_TV:
1451        case SAA7134_INPUT_TV_MONO:
1452                i->type = V4L2_INPUT_TYPE_TUNER;
1453                break;
1454        default:
1455                i->type  = V4L2_INPUT_TYPE_CAMERA;
1456                break;
1457        }
1458        if (n == dev->ctl_input) {
1459                int v1 = saa_readb(SAA7134_STATUS_VIDEO1);
1460                int v2 = saa_readb(SAA7134_STATUS_VIDEO2);
1461
1462                if (0 != (v1 & 0x40))
1463                        i->status |= V4L2_IN_ST_NO_H_LOCK;
1464                if (0 != (v2 & 0x40))
1465                        i->status |= V4L2_IN_ST_NO_SIGNAL;
1466                if (0 != (v2 & 0x0e))
1467                        i->status |= V4L2_IN_ST_MACROVISION;
1468        }
1469        i->std = SAA7134_NORMS;
1470        return 0;
1471}
1472EXPORT_SYMBOL_GPL(saa7134_enum_input);
1473
1474int saa7134_g_input(struct file *file, void *priv, unsigned int *i)
1475{
1476        struct saa7134_dev *dev = video_drvdata(file);
1477
1478        *i = dev->ctl_input;
1479        return 0;
1480}
1481EXPORT_SYMBOL_GPL(saa7134_g_input);
1482
1483int saa7134_s_input(struct file *file, void *priv, unsigned int i)
1484{
1485        struct saa7134_dev *dev = video_drvdata(file);
1486
1487        if (i >= SAA7134_INPUT_MAX)
1488                return -EINVAL;
1489        if (card_in(dev, i).type == SAA7134_NO_INPUT)
1490                return -EINVAL;
1491        video_mux(dev, i);
1492        return 0;
1493}
1494EXPORT_SYMBOL_GPL(saa7134_s_input);
1495
1496int saa7134_querycap(struct file *file, void *priv,
1497                                        struct v4l2_capability *cap)
1498{
1499        struct saa7134_dev *dev = video_drvdata(file);
1500        struct video_device *vdev = video_devdata(file);
1501        u32 radio_caps, video_caps, vbi_caps;
1502
1503        unsigned int tuner_type = dev->tuner_type;
1504
1505        strcpy(cap->driver, "saa7134");
1506        strlcpy(cap->card, saa7134_boards[dev->board].name,
1507                sizeof(cap->card));
1508        sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
1509
1510        cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1511        if ((tuner_type != TUNER_ABSENT) && (tuner_type != UNSET))
1512                cap->device_caps |= V4L2_CAP_TUNER;
1513
1514        radio_caps = V4L2_CAP_RADIO;
1515        if (dev->has_rds)
1516                radio_caps |= V4L2_CAP_RDS_CAPTURE;
1517
1518        video_caps = V4L2_CAP_VIDEO_CAPTURE;
1519        if (saa7134_no_overlay <= 0 && !is_empress(file))
1520                video_caps |= V4L2_CAP_VIDEO_OVERLAY;
1521
1522        vbi_caps = V4L2_CAP_VBI_CAPTURE;
1523
1524        switch (vdev->vfl_type) {
1525        case VFL_TYPE_RADIO:
1526                cap->device_caps |= radio_caps;
1527                break;
1528        case VFL_TYPE_GRABBER:
1529                cap->device_caps |= video_caps;
1530                break;
1531        case VFL_TYPE_VBI:
1532                cap->device_caps |= vbi_caps;
1533                break;
1534        default:
1535                return -EINVAL;
1536        }
1537        cap->capabilities = radio_caps | video_caps | vbi_caps |
1538                cap->device_caps | V4L2_CAP_DEVICE_CAPS;
1539        if (vdev->vfl_type == VFL_TYPE_RADIO) {
1540                cap->device_caps &= ~V4L2_CAP_STREAMING;
1541                if (!dev->has_rds)
1542                        cap->device_caps &= ~V4L2_CAP_READWRITE;
1543        }
1544
1545        return 0;
1546}
1547EXPORT_SYMBOL_GPL(saa7134_querycap);
1548
1549int saa7134_s_std(struct file *file, void *priv, v4l2_std_id id)
1550{
1551        struct saa7134_dev *dev = video_drvdata(file);
1552        struct v4l2_fh *fh = priv;
1553        unsigned long flags;
1554        unsigned int i;
1555        v4l2_std_id fixup;
1556
1557        if (is_empress(file) && dev->overlay_owner) {
1558                /* Don't change the std from the mpeg device
1559                   if overlay is active. */
1560                return -EBUSY;
1561        }
1562
1563        for (i = 0; i < TVNORMS; i++)
1564                if (id == tvnorms[i].id)
1565                        break;
1566
1567        if (i == TVNORMS)
1568                for (i = 0; i < TVNORMS; i++)
1569                        if (id & tvnorms[i].id)
1570                                break;
1571        if (i == TVNORMS)
1572                return -EINVAL;
1573
1574        if ((id & V4L2_STD_SECAM) && (secam[0] != '-')) {
1575                if (secam[0] == 'L' || secam[0] == 'l') {
1576                        if (secam[1] == 'C' || secam[1] == 'c')
1577                                fixup = V4L2_STD_SECAM_LC;
1578                        else
1579                                fixup = V4L2_STD_SECAM_L;
1580                } else {
1581                        if (secam[0] == 'D' || secam[0] == 'd')
1582                                fixup = V4L2_STD_SECAM_DK;
1583                        else
1584                                fixup = V4L2_STD_SECAM;
1585                }
1586                for (i = 0; i < TVNORMS; i++) {
1587                        if (fixup == tvnorms[i].id)
1588                                break;
1589                }
1590                if (i == TVNORMS)
1591                        return -EINVAL;
1592        }
1593
1594        id = tvnorms[i].id;
1595
1596        if (!is_empress(file) && fh == dev->overlay_owner) {
1597                spin_lock_irqsave(&dev->slock, flags);
1598                stop_preview(dev);
1599                spin_unlock_irqrestore(&dev->slock, flags);
1600
1601                set_tvnorm(dev, &tvnorms[i]);
1602
1603                spin_lock_irqsave(&dev->slock, flags);
1604                start_preview(dev);
1605                spin_unlock_irqrestore(&dev->slock, flags);
1606        } else
1607                set_tvnorm(dev, &tvnorms[i]);
1608
1609        saa7134_tvaudio_do_scan(dev);
1610        return 0;
1611}
1612EXPORT_SYMBOL_GPL(saa7134_s_std);
1613
1614int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id)
1615{
1616        struct saa7134_dev *dev = video_drvdata(file);
1617
1618        *id = dev->tvnorm->id;
1619        return 0;
1620}
1621EXPORT_SYMBOL_GPL(saa7134_g_std);
1622
1623static v4l2_std_id saa7134_read_std(struct saa7134_dev *dev)
1624{
1625        static v4l2_std_id stds[] = {
1626                V4L2_STD_UNKNOWN,
1627                V4L2_STD_NTSC,
1628                V4L2_STD_PAL,
1629                V4L2_STD_SECAM };
1630
1631        v4l2_std_id result = 0;
1632
1633        u8 st1 = saa_readb(SAA7134_STATUS_VIDEO1);
1634        u8 st2 = saa_readb(SAA7134_STATUS_VIDEO2);
1635
1636        if (!(st2 & 0x1)) /* RDCAP == 0 */
1637                result = V4L2_STD_UNKNOWN;
1638        else
1639                result = stds[st1 & 0x03];
1640
1641        return result;
1642}
1643
1644int saa7134_querystd(struct file *file, void *priv, v4l2_std_id *std)
1645{
1646        struct saa7134_dev *dev = video_drvdata(file);
1647        *std &= saa7134_read_std(dev);
1648        return 0;
1649}
1650EXPORT_SYMBOL_GPL(saa7134_querystd);
1651
1652static int saa7134_cropcap(struct file *file, void *priv,
1653                                        struct v4l2_cropcap *cap)
1654{
1655        struct saa7134_dev *dev = video_drvdata(file);
1656
1657        if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1658            cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1659                return -EINVAL;
1660        cap->pixelaspect.numerator   = 1;
1661        cap->pixelaspect.denominator = 1;
1662        if (dev->tvnorm->id & V4L2_STD_525_60) {
1663                cap->pixelaspect.numerator   = 11;
1664                cap->pixelaspect.denominator = 10;
1665        }
1666        if (dev->tvnorm->id & V4L2_STD_625_50) {
1667                cap->pixelaspect.numerator   = 54;
1668                cap->pixelaspect.denominator = 59;
1669        }
1670        return 0;
1671}
1672
1673static int saa7134_g_selection(struct file *file, void *f, struct v4l2_selection *sel)
1674{
1675        struct saa7134_dev *dev = video_drvdata(file);
1676
1677        if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1678            sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1679                return -EINVAL;
1680
1681        switch (sel->target) {
1682        case V4L2_SEL_TGT_CROP:
1683                sel->r = dev->crop_current;
1684                break;
1685        case V4L2_SEL_TGT_CROP_DEFAULT:
1686                sel->r = dev->crop_defrect;
1687                break;
1688        case V4L2_SEL_TGT_CROP_BOUNDS:
1689                sel->r  = dev->crop_bounds;
1690                break;
1691        default:
1692                return -EINVAL;
1693        }
1694        return 0;
1695}
1696
1697static int saa7134_s_selection(struct file *file, void *f, struct v4l2_selection *sel)
1698{
1699        struct saa7134_dev *dev = video_drvdata(file);
1700        struct v4l2_rect *b = &dev->crop_bounds;
1701        struct v4l2_rect *c = &dev->crop_current;
1702
1703        if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1704            sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1705                return -EINVAL;
1706
1707        if (sel->target != V4L2_SEL_TGT_CROP)
1708                return -EINVAL;
1709
1710        if (dev->overlay_owner)
1711                return -EBUSY;
1712        if (vb2_is_streaming(&dev->video_vbq))
1713                return -EBUSY;
1714
1715        *c = sel->r;
1716        if (c->top < b->top)
1717                c->top = b->top;
1718        if (c->top > b->top + b->height)
1719                c->top = b->top + b->height;
1720        if (c->height > b->top - c->top + b->height)
1721                c->height = b->top - c->top + b->height;
1722
1723        if (c->left < b->left)
1724                c->left = b->left;
1725        if (c->left > b->left + b->width)
1726                c->left = b->left + b->width;
1727        if (c->width > b->left - c->left + b->width)
1728                c->width = b->left - c->left + b->width;
1729        sel->r = *c;
1730        return 0;
1731}
1732
1733int saa7134_g_tuner(struct file *file, void *priv,
1734                                        struct v4l2_tuner *t)
1735{
1736        struct saa7134_dev *dev = video_drvdata(file);
1737        int n;
1738
1739        if (0 != t->index)
1740                return -EINVAL;
1741        memset(t, 0, sizeof(*t));
1742        for (n = 0; n < SAA7134_INPUT_MAX; n++) {
1743                if (card_in(dev, n).type == SAA7134_INPUT_TV ||
1744                    card_in(dev, n).type == SAA7134_INPUT_TV_MONO)
1745                        break;
1746        }
1747        if (n == SAA7134_INPUT_MAX)
1748                return -EINVAL;
1749        if (card_in(dev, n).type != SAA7134_NO_INPUT) {
1750                strcpy(t->name, "Television");
1751                t->type = V4L2_TUNER_ANALOG_TV;
1752                saa_call_all(dev, tuner, g_tuner, t);
1753                t->capability = V4L2_TUNER_CAP_NORM |
1754                        V4L2_TUNER_CAP_STEREO |
1755                        V4L2_TUNER_CAP_LANG1 |
1756                        V4L2_TUNER_CAP_LANG2;
1757                t->rxsubchans = saa7134_tvaudio_getstereo(dev);
1758                t->audmode = saa7134_tvaudio_rx2mode(t->rxsubchans);
1759        }
1760        if (0 != (saa_readb(SAA7134_STATUS_VIDEO1) & 0x03))
1761                t->signal = 0xffff;
1762        return 0;
1763}
1764EXPORT_SYMBOL_GPL(saa7134_g_tuner);
1765
1766int saa7134_s_tuner(struct file *file, void *priv,
1767                                        const struct v4l2_tuner *t)
1768{
1769        struct saa7134_dev *dev = video_drvdata(file);
1770        int rx, mode;
1771
1772        if (0 != t->index)
1773                return -EINVAL;
1774
1775        mode = dev->thread.mode;
1776        if (UNSET == mode) {
1777                rx   = saa7134_tvaudio_getstereo(dev);
1778                mode = saa7134_tvaudio_rx2mode(rx);
1779        }
1780        if (mode != t->audmode)
1781                dev->thread.mode = t->audmode;
1782
1783        return 0;
1784}
1785EXPORT_SYMBOL_GPL(saa7134_s_tuner);
1786
1787int saa7134_g_frequency(struct file *file, void *priv,
1788                                        struct v4l2_frequency *f)
1789{
1790        struct saa7134_dev *dev = video_drvdata(file);
1791
1792        if (0 != f->tuner)
1793                return -EINVAL;
1794
1795        saa_call_all(dev, tuner, g_frequency, f);
1796
1797        return 0;
1798}
1799EXPORT_SYMBOL_GPL(saa7134_g_frequency);
1800
1801int saa7134_s_frequency(struct file *file, void *priv,
1802                                        const struct v4l2_frequency *f)
1803{
1804        struct saa7134_dev *dev = video_drvdata(file);
1805
1806        if (0 != f->tuner)
1807                return -EINVAL;
1808
1809        saa_call_all(dev, tuner, s_frequency, f);
1810
1811        saa7134_tvaudio_do_scan(dev);
1812        return 0;
1813}
1814EXPORT_SYMBOL_GPL(saa7134_s_frequency);
1815
1816static int saa7134_enum_fmt_vid_cap(struct file *file, void  *priv,
1817                                        struct v4l2_fmtdesc *f)
1818{
1819        if (f->index >= FORMATS)
1820                return -EINVAL;
1821
1822        strlcpy(f->description, formats[f->index].name,
1823                sizeof(f->description));
1824
1825        f->pixelformat = formats[f->index].fourcc;
1826
1827        return 0;
1828}
1829
1830static int saa7134_enum_fmt_vid_overlay(struct file *file, void  *priv,
1831                                        struct v4l2_fmtdesc *f)
1832{
1833        if (saa7134_no_overlay > 0) {
1834                pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1835                return -EINVAL;
1836        }
1837
1838        if ((f->index >= FORMATS) || formats[f->index].planar)
1839                return -EINVAL;
1840
1841        strlcpy(f->description, formats[f->index].name,
1842                sizeof(f->description));
1843
1844        f->pixelformat = formats[f->index].fourcc;
1845
1846        return 0;
1847}
1848
1849static int saa7134_g_fbuf(struct file *file, void *f,
1850                                struct v4l2_framebuffer *fb)
1851{
1852        struct saa7134_dev *dev = video_drvdata(file);
1853
1854        *fb = dev->ovbuf;
1855        fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
1856
1857        return 0;
1858}
1859
1860static int saa7134_s_fbuf(struct file *file, void *f,
1861                                        const struct v4l2_framebuffer *fb)
1862{
1863        struct saa7134_dev *dev = video_drvdata(file);
1864        struct saa7134_format *fmt;
1865
1866        if (!capable(CAP_SYS_ADMIN) &&
1867           !capable(CAP_SYS_RAWIO))
1868                return -EPERM;
1869
1870        /* check args */
1871        fmt = format_by_fourcc(fb->fmt.pixelformat);
1872        if (NULL == fmt)
1873                return -EINVAL;
1874
1875        /* ok, accept it */
1876        dev->ovbuf = *fb;
1877        dev->ovfmt = fmt;
1878        if (0 == dev->ovbuf.fmt.bytesperline)
1879                dev->ovbuf.fmt.bytesperline =
1880                        dev->ovbuf.fmt.width*fmt->depth/8;
1881        return 0;
1882}
1883
1884static int saa7134_overlay(struct file *file, void *priv, unsigned int on)
1885{
1886        struct saa7134_dev *dev = video_drvdata(file);
1887        unsigned long flags;
1888
1889        if (on) {
1890                if (saa7134_no_overlay > 0) {
1891                        video_dbg("no_overlay\n");
1892                        return -EINVAL;
1893                }
1894
1895                if (dev->overlay_owner && priv != dev->overlay_owner)
1896                        return -EBUSY;
1897                dev->overlay_owner = priv;
1898                spin_lock_irqsave(&dev->slock, flags);
1899                start_preview(dev);
1900                spin_unlock_irqrestore(&dev->slock, flags);
1901        }
1902        if (!on) {
1903                if (priv != dev->overlay_owner)
1904                        return -EINVAL;
1905                spin_lock_irqsave(&dev->slock, flags);
1906                stop_preview(dev);
1907                spin_unlock_irqrestore(&dev->slock, flags);
1908                dev->overlay_owner = NULL;
1909        }
1910        return 0;
1911}
1912
1913#ifdef CONFIG_VIDEO_ADV_DEBUG
1914static int vidioc_g_register (struct file *file, void *priv,
1915                              struct v4l2_dbg_register *reg)
1916{
1917        struct saa7134_dev *dev = video_drvdata(file);
1918
1919        reg->val = saa_readb(reg->reg & 0xffffff);
1920        reg->size = 1;
1921        return 0;
1922}
1923
1924static int vidioc_s_register (struct file *file, void *priv,
1925                                const struct v4l2_dbg_register *reg)
1926{
1927        struct saa7134_dev *dev = video_drvdata(file);
1928
1929        saa_writeb(reg->reg & 0xffffff, reg->val);
1930        return 0;
1931}
1932#endif
1933
1934static int radio_g_tuner(struct file *file, void *priv,
1935                                        struct v4l2_tuner *t)
1936{
1937        struct saa7134_dev *dev = video_drvdata(file);
1938
1939        if (0 != t->index)
1940                return -EINVAL;
1941
1942        strcpy(t->name, "Radio");
1943
1944        saa_call_all(dev, tuner, g_tuner, t);
1945        t->audmode &= V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO;
1946        if (dev->input->amux == TV) {
1947                t->signal = 0xf800 - ((saa_readb(0x581) & 0x1f) << 11);
1948                t->rxsubchans = (saa_readb(0x529) & 0x08) ?
1949                                V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
1950        }
1951        return 0;
1952}
1953static int radio_s_tuner(struct file *file, void *priv,
1954                                        const struct v4l2_tuner *t)
1955{
1956        struct saa7134_dev *dev = video_drvdata(file);
1957
1958        if (0 != t->index)
1959                return -EINVAL;
1960
1961        saa_call_all(dev, tuner, s_tuner, t);
1962        return 0;
1963}
1964
1965static const struct v4l2_file_operations video_fops =
1966{
1967        .owner    = THIS_MODULE,
1968        .open     = video_open,
1969        .release  = video_release,
1970        .read     = vb2_fop_read,
1971        .poll     = vb2_fop_poll,
1972        .mmap     = vb2_fop_mmap,
1973        .unlocked_ioctl   = video_ioctl2,
1974};
1975
1976static const struct v4l2_ioctl_ops video_ioctl_ops = {
1977        .vidioc_querycap                = saa7134_querycap,
1978        .vidioc_enum_fmt_vid_cap        = saa7134_enum_fmt_vid_cap,
1979        .vidioc_g_fmt_vid_cap           = saa7134_g_fmt_vid_cap,
1980        .vidioc_try_fmt_vid_cap         = saa7134_try_fmt_vid_cap,
1981        .vidioc_s_fmt_vid_cap           = saa7134_s_fmt_vid_cap,
1982        .vidioc_enum_fmt_vid_overlay    = saa7134_enum_fmt_vid_overlay,
1983        .vidioc_g_fmt_vid_overlay       = saa7134_g_fmt_vid_overlay,
1984        .vidioc_try_fmt_vid_overlay     = saa7134_try_fmt_vid_overlay,
1985        .vidioc_s_fmt_vid_overlay       = saa7134_s_fmt_vid_overlay,
1986        .vidioc_g_fmt_vbi_cap           = saa7134_try_get_set_fmt_vbi_cap,
1987        .vidioc_try_fmt_vbi_cap         = saa7134_try_get_set_fmt_vbi_cap,
1988        .vidioc_s_fmt_vbi_cap           = saa7134_try_get_set_fmt_vbi_cap,
1989        .vidioc_cropcap                 = saa7134_cropcap,
1990        .vidioc_reqbufs                 = vb2_ioctl_reqbufs,
1991        .vidioc_querybuf                = vb2_ioctl_querybuf,
1992        .vidioc_qbuf                    = vb2_ioctl_qbuf,
1993        .vidioc_dqbuf                   = vb2_ioctl_dqbuf,
1994        .vidioc_expbuf                  = vb2_ioctl_expbuf,
1995        .vidioc_s_std                   = saa7134_s_std,
1996        .vidioc_g_std                   = saa7134_g_std,
1997        .vidioc_querystd                = saa7134_querystd,
1998        .vidioc_enum_input              = saa7134_enum_input,
1999        .vidioc_g_input                 = saa7134_g_input,
2000        .vidioc_s_input                 = saa7134_s_input,
2001        .vidioc_streamon                = vb2_ioctl_streamon,
2002        .vidioc_streamoff               = vb2_ioctl_streamoff,
2003        .vidioc_g_tuner                 = saa7134_g_tuner,
2004        .vidioc_s_tuner                 = saa7134_s_tuner,
2005        .vidioc_g_selection             = saa7134_g_selection,
2006        .vidioc_s_selection             = saa7134_s_selection,
2007        .vidioc_g_fbuf                  = saa7134_g_fbuf,
2008        .vidioc_s_fbuf                  = saa7134_s_fbuf,
2009        .vidioc_overlay                 = saa7134_overlay,
2010        .vidioc_g_frequency             = saa7134_g_frequency,
2011        .vidioc_s_frequency             = saa7134_s_frequency,
2012#ifdef CONFIG_VIDEO_ADV_DEBUG
2013        .vidioc_g_register              = vidioc_g_register,
2014        .vidioc_s_register              = vidioc_s_register,
2015#endif
2016        .vidioc_log_status              = v4l2_ctrl_log_status,
2017        .vidioc_subscribe_event         = v4l2_ctrl_subscribe_event,
2018        .vidioc_unsubscribe_event       = v4l2_event_unsubscribe,
2019};
2020
2021static const struct v4l2_file_operations radio_fops = {
2022        .owner    = THIS_MODULE,
2023        .open     = video_open,
2024        .read     = radio_read,
2025        .release  = video_release,
2026        .unlocked_ioctl = video_ioctl2,
2027        .poll     = radio_poll,
2028};
2029
2030static const struct v4l2_ioctl_ops radio_ioctl_ops = {
2031        .vidioc_querycap        = saa7134_querycap,
2032        .vidioc_g_tuner         = radio_g_tuner,
2033        .vidioc_s_tuner         = radio_s_tuner,
2034        .vidioc_g_frequency     = saa7134_g_frequency,
2035        .vidioc_s_frequency     = saa7134_s_frequency,
2036        .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
2037        .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
2038};
2039
2040/* ----------------------------------------------------------- */
2041/* exported stuff                                              */
2042
2043struct video_device saa7134_video_template = {
2044        .name                           = "saa7134-video",
2045        .fops                           = &video_fops,
2046        .ioctl_ops                      = &video_ioctl_ops,
2047        .tvnorms                        = SAA7134_NORMS,
2048};
2049
2050struct video_device saa7134_radio_template = {
2051        .name                   = "saa7134-radio",
2052        .fops                   = &radio_fops,
2053        .ioctl_ops              = &radio_ioctl_ops,
2054};
2055
2056static const struct v4l2_ctrl_ops saa7134_ctrl_ops = {
2057        .s_ctrl = saa7134_s_ctrl,
2058};
2059
2060static const struct v4l2_ctrl_config saa7134_ctrl_invert = {
2061        .ops = &saa7134_ctrl_ops,
2062        .id = V4L2_CID_PRIVATE_INVERT,
2063        .name = "Invert",
2064        .type = V4L2_CTRL_TYPE_BOOLEAN,
2065        .min = 0,
2066        .max = 1,
2067        .step = 1,
2068};
2069
2070static const struct v4l2_ctrl_config saa7134_ctrl_y_odd = {
2071        .ops = &saa7134_ctrl_ops,
2072        .id = V4L2_CID_PRIVATE_Y_ODD,
2073        .name = "Y Offset Odd Field",
2074        .type = V4L2_CTRL_TYPE_INTEGER,
2075        .min = 0,
2076        .max = 128,
2077        .step = 1,
2078};
2079
2080static const struct v4l2_ctrl_config saa7134_ctrl_y_even = {
2081        .ops = &saa7134_ctrl_ops,
2082        .id = V4L2_CID_PRIVATE_Y_EVEN,
2083        .name = "Y Offset Even Field",
2084        .type = V4L2_CTRL_TYPE_INTEGER,
2085        .min = 0,
2086        .max = 128,
2087        .step = 1,
2088};
2089
2090static const struct v4l2_ctrl_config saa7134_ctrl_automute = {
2091        .ops = &saa7134_ctrl_ops,
2092        .id = V4L2_CID_PRIVATE_AUTOMUTE,
2093        .name = "Automute",
2094        .type = V4L2_CTRL_TYPE_BOOLEAN,
2095        .min = 0,
2096        .max = 1,
2097        .step = 1,
2098        .def = 1,
2099};
2100
2101int saa7134_video_init1(struct saa7134_dev *dev)
2102{
2103        struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler;
2104        struct vb2_queue *q;
2105        int ret;
2106
2107        /* sanitycheck insmod options */
2108        if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
2109                gbuffers = 2;
2110        if (gbufsize > gbufsize_max)
2111                gbufsize = gbufsize_max;
2112        gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
2113
2114        v4l2_ctrl_handler_init(hdl, 11);
2115        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2116                        V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
2117        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2118                        V4L2_CID_CONTRAST, 0, 127, 1, 68);
2119        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2120                        V4L2_CID_SATURATION, 0, 127, 1, 64);
2121        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2122                        V4L2_CID_HUE, -128, 127, 1, 0);
2123        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2124                        V4L2_CID_HFLIP, 0, 1, 1, 0);
2125        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2126                        V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
2127        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2128                        V4L2_CID_AUDIO_VOLUME, -15, 15, 1, 0);
2129        v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_invert, NULL);
2130        v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_odd, NULL);
2131        v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_even, NULL);
2132        v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_automute, NULL);
2133        if (hdl->error)
2134                return hdl->error;
2135        if (card_has_radio(dev)) {
2136                hdl = &dev->radio_ctrl_handler;
2137                v4l2_ctrl_handler_init(hdl, 2);
2138                v4l2_ctrl_add_handler(hdl, &dev->ctrl_handler,
2139                                v4l2_ctrl_radio_filter);
2140                if (hdl->error)
2141                        return hdl->error;
2142        }
2143        dev->ctl_mute       = 1;
2144
2145        if (dev->tda9887_conf && saa7134_ctrl_automute.def)
2146                dev->tda9887_conf |= TDA9887_AUTOMUTE;
2147        dev->automute       = 0;
2148
2149        INIT_LIST_HEAD(&dev->video_q.queue);
2150        timer_setup(&dev->video_q.timeout, saa7134_buffer_timeout, 0);
2151        dev->video_q.dev              = dev;
2152        dev->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
2153        dev->width    = 720;
2154        dev->height   = 576;
2155        dev->field = V4L2_FIELD_INTERLACED;
2156        dev->win.w.width = dev->width;
2157        dev->win.w.height = dev->height;
2158        dev->win.field = V4L2_FIELD_INTERLACED;
2159        dev->ovbuf.fmt.width = dev->width;
2160        dev->ovbuf.fmt.height = dev->height;
2161        dev->ovbuf.fmt.pixelformat = dev->fmt->fourcc;
2162        dev->ovbuf.fmt.colorspace = V4L2_COLORSPACE_SMPTE170M;
2163
2164        if (saa7134_boards[dev->board].video_out)
2165                saa7134_videoport_init(dev);
2166
2167        q = &dev->video_vbq;
2168        q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2169        /*
2170         * Do not add VB2_USERPTR unless explicitly requested: the saa7134 DMA
2171         * engine cannot handle transfers that do not start at the beginning
2172         * of a page. A user-provided pointer can start anywhere in a page, so
2173         * USERPTR support is a no-go unless the application knows about these
2174         * limitations and has special support for this.
2175         */
2176        q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
2177        if (saa7134_userptr)
2178                q->io_modes |= VB2_USERPTR;
2179        q->drv_priv = &dev->video_q;
2180        q->ops = &vb2_qops;
2181        q->gfp_flags = GFP_DMA32;
2182        q->mem_ops = &vb2_dma_sg_memops;
2183        q->buf_struct_size = sizeof(struct saa7134_buf);
2184        q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2185        q->lock = &dev->lock;
2186        q->dev = &dev->pci->dev;
2187        ret = vb2_queue_init(q);
2188        if (ret)
2189                return ret;
2190        saa7134_pgtable_alloc(dev->pci, &dev->video_q.pt);
2191
2192        q = &dev->vbi_vbq;
2193        q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
2194        /* Don't add VB2_USERPTR, see comment above */
2195        q->io_modes = VB2_MMAP | VB2_READ;
2196        if (saa7134_userptr)
2197                q->io_modes |= VB2_USERPTR;
2198        q->drv_priv = &dev->vbi_q;
2199        q->ops = &saa7134_vbi_qops;
2200        q->gfp_flags = GFP_DMA32;
2201        q->mem_ops = &vb2_dma_sg_memops;
2202        q->buf_struct_size = sizeof(struct saa7134_buf);
2203        q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2204        q->lock = &dev->lock;
2205        q->dev = &dev->pci->dev;
2206        ret = vb2_queue_init(q);
2207        if (ret)
2208                return ret;
2209        saa7134_pgtable_alloc(dev->pci, &dev->vbi_q.pt);
2210
2211        return 0;
2212}
2213
2214void saa7134_video_fini(struct saa7134_dev *dev)
2215{
2216        /* free stuff */
2217        vb2_queue_release(&dev->video_vbq);
2218        saa7134_pgtable_free(dev->pci, &dev->video_q.pt);
2219        vb2_queue_release(&dev->vbi_vbq);
2220        saa7134_pgtable_free(dev->pci, &dev->vbi_q.pt);
2221        v4l2_ctrl_handler_free(&dev->ctrl_handler);
2222        if (card_has_radio(dev))
2223                v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
2224}
2225
2226int saa7134_videoport_init(struct saa7134_dev *dev)
2227{
2228        /* enable video output */
2229        int vo = saa7134_boards[dev->board].video_out;
2230        int video_reg;
2231        unsigned int vid_port_opts = saa7134_boards[dev->board].vid_port_opts;
2232
2233        /* Configure videoport */
2234        saa_writeb(SAA7134_VIDEO_PORT_CTRL0, video_out[vo][0]);
2235        video_reg = video_out[vo][1];
2236        if (vid_port_opts & SET_T_CODE_POLARITY_NON_INVERTED)
2237                video_reg &= ~VP_T_CODE_P_INVERTED;
2238        saa_writeb(SAA7134_VIDEO_PORT_CTRL1, video_reg);
2239        saa_writeb(SAA7134_VIDEO_PORT_CTRL2, video_out[vo][2]);
2240        saa_writeb(SAA7134_VIDEO_PORT_CTRL4, video_out[vo][4]);
2241        video_reg = video_out[vo][5];
2242        if (vid_port_opts & SET_CLOCK_NOT_DELAYED)
2243                video_reg &= ~VP_CLK_CTRL2_DELAYED;
2244        if (vid_port_opts & SET_CLOCK_INVERTED)
2245                video_reg |= VP_CLK_CTRL1_INVERTED;
2246        saa_writeb(SAA7134_VIDEO_PORT_CTRL5, video_reg);
2247        video_reg = video_out[vo][6];
2248        if (vid_port_opts & SET_VSYNC_OFF) {
2249                video_reg &= ~VP_VS_TYPE_MASK;
2250                video_reg |= VP_VS_TYPE_OFF;
2251        }
2252        saa_writeb(SAA7134_VIDEO_PORT_CTRL6, video_reg);
2253        saa_writeb(SAA7134_VIDEO_PORT_CTRL7, video_out[vo][7]);
2254        saa_writeb(SAA7134_VIDEO_PORT_CTRL8, video_out[vo][8]);
2255
2256        /* Start videoport */
2257        saa_writeb(SAA7134_VIDEO_PORT_CTRL3, video_out[vo][3]);
2258
2259        return 0;
2260}
2261
2262int saa7134_video_init2(struct saa7134_dev *dev)
2263{
2264        /* init video hw */
2265        set_tvnorm(dev,&tvnorms[0]);
2266        video_mux(dev,0);
2267        v4l2_ctrl_handler_setup(&dev->ctrl_handler);
2268        saa7134_tvaudio_setmute(dev);
2269        saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
2270        return 0;
2271}
2272
2273void saa7134_irq_video_signalchange(struct saa7134_dev *dev)
2274{
2275        static const char *st[] = {
2276                "(no signal)", "NTSC", "PAL", "SECAM" };
2277        u32 st1,st2;
2278
2279        st1 = saa_readb(SAA7134_STATUS_VIDEO1);
2280        st2 = saa_readb(SAA7134_STATUS_VIDEO2);
2281        video_dbg("DCSDT: pll: %s, sync: %s, norm: %s\n",
2282                (st1 & 0x40) ? "not locked" : "locked",
2283                (st2 & 0x40) ? "no"         : "yes",
2284                st[st1 & 0x03]);
2285        dev->nosignal = (st1 & 0x40) || (st2 & 0x40)  || !(st2 & 0x1);
2286
2287        if (dev->nosignal) {
2288                /* no video signal -> mute audio */
2289                if (dev->ctl_automute)
2290                        dev->automute = 1;
2291                saa7134_tvaudio_setmute(dev);
2292        } else {
2293                /* wake up tvaudio audio carrier scan thread */
2294                saa7134_tvaudio_do_scan(dev);
2295        }
2296
2297        if ((st2 & 0x80) && !noninterlaced && !dev->nosignal)
2298                saa_clearb(SAA7134_SYNC_CTRL, 0x20);
2299        else
2300                saa_setb(SAA7134_SYNC_CTRL, 0x20);
2301
2302        if (dev->mops && dev->mops->signal_change)
2303                dev->mops->signal_change(dev);
2304}
2305
2306
2307void saa7134_irq_video_done(struct saa7134_dev *dev, unsigned long status)
2308{
2309        enum v4l2_field field;
2310
2311        spin_lock(&dev->slock);
2312        if (dev->video_q.curr) {
2313                field = dev->field;
2314                if (V4L2_FIELD_HAS_BOTH(field)) {
2315                        /* make sure we have seen both fields */
2316                        if ((status & 0x10) == 0x00) {
2317                                dev->video_q.curr->top_seen = 1;
2318                                goto done;
2319                        }
2320                        if (!dev->video_q.curr->top_seen)
2321                                goto done;
2322                } else if (field == V4L2_FIELD_TOP) {
2323                        if ((status & 0x10) != 0x10)
2324                                goto done;
2325                } else if (field == V4L2_FIELD_BOTTOM) {
2326                        if ((status & 0x10) != 0x00)
2327                                goto done;
2328                }
2329                saa7134_buffer_finish(dev, &dev->video_q, VB2_BUF_STATE_DONE);
2330        }
2331        saa7134_buffer_next(dev, &dev->video_q);
2332
2333 done:
2334        spin_unlock(&dev->slock);
2335}
2336