linux/drivers/media/pci/saa7134/saa7134-video.c
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   1/*
   2 *
   3 * device driver for philips saa7134 based TV cards
   4 * video4linux video interface
   5 *
   6 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   7 *
   8 *  This program is free software; you can redistribute it and/or modify
   9 *  it under the terms of the GNU General Public License as published by
  10 *  the Free Software Foundation; either version 2 of the License, or
  11 *  (at your option) any later version.
  12 *
  13 *  This program is distributed in the hope that it will be useful,
  14 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 *  GNU General Public License for more details.
  17 *
  18 *  You should have received a copy of the GNU General Public License
  19 *  along with this program; if not, write to the Free Software
  20 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23#include "saa7134.h"
  24#include "saa7134-reg.h"
  25
  26#include <linux/init.h>
  27#include <linux/list.h>
  28#include <linux/module.h>
  29#include <linux/kernel.h>
  30#include <linux/slab.h>
  31#include <linux/sort.h>
  32
  33#include <media/v4l2-common.h>
  34#include <media/v4l2-event.h>
  35#include <media/i2c/saa6588.h>
  36
  37/* ------------------------------------------------------------------ */
  38
  39unsigned int video_debug;
  40static unsigned int gbuffers      = 8;
  41static unsigned int noninterlaced; /* 0 */
  42static unsigned int gbufsize      = 720*576*4;
  43static unsigned int gbufsize_max  = 720*576*4;
  44static char secam[] = "--";
  45module_param(video_debug, int, 0644);
  46MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
  47module_param(gbuffers, int, 0444);
  48MODULE_PARM_DESC(gbuffers,"number of capture buffers, range 2-32");
  49module_param(noninterlaced, int, 0644);
  50MODULE_PARM_DESC(noninterlaced,"capture non interlaced video");
  51module_param_string(secam, secam, sizeof(secam), 0644);
  52MODULE_PARM_DESC(secam, "force SECAM variant, either DK,L or Lc");
  53
  54
  55#define video_dbg(fmt, arg...) do { \
  56        if (video_debug & 0x04) \
  57                printk(KERN_DEBUG pr_fmt("video: " fmt), ## arg); \
  58        } while (0)
  59
  60/* ------------------------------------------------------------------ */
  61/* Defines for Video Output Port Register at address 0x191            */
  62
  63/* Bit 0: VIP code T bit polarity */
  64
  65#define VP_T_CODE_P_NON_INVERTED        0x00
  66#define VP_T_CODE_P_INVERTED            0x01
  67
  68/* ------------------------------------------------------------------ */
  69/* Defines for Video Output Port Register at address 0x195            */
  70
  71/* Bit 2: Video output clock delay control */
  72
  73#define VP_CLK_CTRL2_NOT_DELAYED        0x00
  74#define VP_CLK_CTRL2_DELAYED            0x04
  75
  76/* Bit 1: Video output clock invert control */
  77
  78#define VP_CLK_CTRL1_NON_INVERTED       0x00
  79#define VP_CLK_CTRL1_INVERTED           0x02
  80
  81/* ------------------------------------------------------------------ */
  82/* Defines for Video Output Port Register at address 0x196            */
  83
  84/* Bits 2 to 0: VSYNC pin video vertical sync type */
  85
  86#define VP_VS_TYPE_MASK                 0x07
  87
  88#define VP_VS_TYPE_OFF                  0x00
  89#define VP_VS_TYPE_V123                 0x01
  90#define VP_VS_TYPE_V_ITU                0x02
  91#define VP_VS_TYPE_VGATE_L              0x03
  92#define VP_VS_TYPE_RESERVED1            0x04
  93#define VP_VS_TYPE_RESERVED2            0x05
  94#define VP_VS_TYPE_F_ITU                0x06
  95#define VP_VS_TYPE_SC_FID               0x07
  96
  97/* ------------------------------------------------------------------ */
  98/* data structs for video                                             */
  99
 100static int video_out[][9] = {
 101        [CCIR656] = { 0x00, 0xb1, 0x00, 0xa1, 0x00, 0x04, 0x06, 0x00, 0x00 },
 102};
 103
 104static struct saa7134_format formats[] = {
 105        {
 106                .name     = "8 bpp gray",
 107                .fourcc   = V4L2_PIX_FMT_GREY,
 108                .depth    = 8,
 109                .pm       = 0x06,
 110        },{
 111                .name     = "15 bpp RGB, le",
 112                .fourcc   = V4L2_PIX_FMT_RGB555,
 113                .depth    = 16,
 114                .pm       = 0x13 | 0x80,
 115        },{
 116                .name     = "15 bpp RGB, be",
 117                .fourcc   = V4L2_PIX_FMT_RGB555X,
 118                .depth    = 16,
 119                .pm       = 0x13 | 0x80,
 120                .bswap    = 1,
 121        },{
 122                .name     = "16 bpp RGB, le",
 123                .fourcc   = V4L2_PIX_FMT_RGB565,
 124                .depth    = 16,
 125                .pm       = 0x10 | 0x80,
 126        },{
 127                .name     = "16 bpp RGB, be",
 128                .fourcc   = V4L2_PIX_FMT_RGB565X,
 129                .depth    = 16,
 130                .pm       = 0x10 | 0x80,
 131                .bswap    = 1,
 132        },{
 133                .name     = "24 bpp RGB, le",
 134                .fourcc   = V4L2_PIX_FMT_BGR24,
 135                .depth    = 24,
 136                .pm       = 0x11,
 137        },{
 138                .name     = "24 bpp RGB, be",
 139                .fourcc   = V4L2_PIX_FMT_RGB24,
 140                .depth    = 24,
 141                .pm       = 0x11,
 142                .bswap    = 1,
 143        },{
 144                .name     = "32 bpp RGB, le",
 145                .fourcc   = V4L2_PIX_FMT_BGR32,
 146                .depth    = 32,
 147                .pm       = 0x12,
 148        },{
 149                .name     = "32 bpp RGB, be",
 150                .fourcc   = V4L2_PIX_FMT_RGB32,
 151                .depth    = 32,
 152                .pm       = 0x12,
 153                .bswap    = 1,
 154                .wswap    = 1,
 155        },{
 156                .name     = "4:2:2 packed, YUYV",
 157                .fourcc   = V4L2_PIX_FMT_YUYV,
 158                .depth    = 16,
 159                .pm       = 0x00,
 160                .bswap    = 1,
 161                .yuv      = 1,
 162        },{
 163                .name     = "4:2:2 packed, UYVY",
 164                .fourcc   = V4L2_PIX_FMT_UYVY,
 165                .depth    = 16,
 166                .pm       = 0x00,
 167                .yuv      = 1,
 168        },{
 169                .name     = "4:2:2 planar, Y-Cb-Cr",
 170                .fourcc   = V4L2_PIX_FMT_YUV422P,
 171                .depth    = 16,
 172                .pm       = 0x09,
 173                .yuv      = 1,
 174                .planar   = 1,
 175                .hshift   = 1,
 176                .vshift   = 0,
 177        },{
 178                .name     = "4:2:0 planar, Y-Cb-Cr",
 179                .fourcc   = V4L2_PIX_FMT_YUV420,
 180                .depth    = 12,
 181                .pm       = 0x0a,
 182                .yuv      = 1,
 183                .planar   = 1,
 184                .hshift   = 1,
 185                .vshift   = 1,
 186        },{
 187                .name     = "4:2:0 planar, Y-Cb-Cr",
 188                .fourcc   = V4L2_PIX_FMT_YVU420,
 189                .depth    = 12,
 190                .pm       = 0x0a,
 191                .yuv      = 1,
 192                .planar   = 1,
 193                .uvswap   = 1,
 194                .hshift   = 1,
 195                .vshift   = 1,
 196        }
 197};
 198#define FORMATS ARRAY_SIZE(formats)
 199
 200#define NORM_625_50                     \
 201                .h_start       = 0,     \
 202                .h_stop        = 719,   \
 203                .video_v_start = 24,    \
 204                .video_v_stop  = 311,   \
 205                .vbi_v_start_0 = 7,     \
 206                .vbi_v_stop_0  = 23,    \
 207                .vbi_v_start_1 = 319,   \
 208                .src_timing    = 4
 209
 210#define NORM_525_60                     \
 211                .h_start       = 0,     \
 212                .h_stop        = 719,   \
 213                .video_v_start = 23,    \
 214                .video_v_stop  = 262,   \
 215                .vbi_v_start_0 = 10,    \
 216                .vbi_v_stop_0  = 21,    \
 217                .vbi_v_start_1 = 273,   \
 218                .src_timing    = 7
 219
 220static struct saa7134_tvnorm tvnorms[] = {
 221        {
 222                .name          = "PAL", /* autodetect */
 223                .id            = V4L2_STD_PAL,
 224                NORM_625_50,
 225
 226                .sync_control  = 0x18,
 227                .luma_control  = 0x40,
 228                .chroma_ctrl1  = 0x81,
 229                .chroma_gain   = 0x2a,
 230                .chroma_ctrl2  = 0x06,
 231                .vgate_misc    = 0x1c,
 232
 233        },{
 234                .name          = "PAL-BG",
 235                .id            = V4L2_STD_PAL_BG,
 236                NORM_625_50,
 237
 238                .sync_control  = 0x18,
 239                .luma_control  = 0x40,
 240                .chroma_ctrl1  = 0x81,
 241                .chroma_gain   = 0x2a,
 242                .chroma_ctrl2  = 0x06,
 243                .vgate_misc    = 0x1c,
 244
 245        },{
 246                .name          = "PAL-I",
 247                .id            = V4L2_STD_PAL_I,
 248                NORM_625_50,
 249
 250                .sync_control  = 0x18,
 251                .luma_control  = 0x40,
 252                .chroma_ctrl1  = 0x81,
 253                .chroma_gain   = 0x2a,
 254                .chroma_ctrl2  = 0x06,
 255                .vgate_misc    = 0x1c,
 256
 257        },{
 258                .name          = "PAL-DK",
 259                .id            = V4L2_STD_PAL_DK,
 260                NORM_625_50,
 261
 262                .sync_control  = 0x18,
 263                .luma_control  = 0x40,
 264                .chroma_ctrl1  = 0x81,
 265                .chroma_gain   = 0x2a,
 266                .chroma_ctrl2  = 0x06,
 267                .vgate_misc    = 0x1c,
 268
 269        },{
 270                .name          = "NTSC",
 271                .id            = V4L2_STD_NTSC,
 272                NORM_525_60,
 273
 274                .sync_control  = 0x59,
 275                .luma_control  = 0x40,
 276                .chroma_ctrl1  = 0x89,
 277                .chroma_gain   = 0x2a,
 278                .chroma_ctrl2  = 0x0e,
 279                .vgate_misc    = 0x18,
 280
 281        },{
 282                .name          = "SECAM",
 283                .id            = V4L2_STD_SECAM,
 284                NORM_625_50,
 285
 286                .sync_control  = 0x18,
 287                .luma_control  = 0x1b,
 288                .chroma_ctrl1  = 0xd1,
 289                .chroma_gain   = 0x80,
 290                .chroma_ctrl2  = 0x00,
 291                .vgate_misc    = 0x1c,
 292
 293        },{
 294                .name          = "SECAM-DK",
 295                .id            = V4L2_STD_SECAM_DK,
 296                NORM_625_50,
 297
 298                .sync_control  = 0x18,
 299                .luma_control  = 0x1b,
 300                .chroma_ctrl1  = 0xd1,
 301                .chroma_gain   = 0x80,
 302                .chroma_ctrl2  = 0x00,
 303                .vgate_misc    = 0x1c,
 304
 305        },{
 306                .name          = "SECAM-L",
 307                .id            = V4L2_STD_SECAM_L,
 308                NORM_625_50,
 309
 310                .sync_control  = 0x18,
 311                .luma_control  = 0x1b,
 312                .chroma_ctrl1  = 0xd1,
 313                .chroma_gain   = 0x80,
 314                .chroma_ctrl2  = 0x00,
 315                .vgate_misc    = 0x1c,
 316
 317        },{
 318                .name          = "SECAM-Lc",
 319                .id            = V4L2_STD_SECAM_LC,
 320                NORM_625_50,
 321
 322                .sync_control  = 0x18,
 323                .luma_control  = 0x1b,
 324                .chroma_ctrl1  = 0xd1,
 325                .chroma_gain   = 0x80,
 326                .chroma_ctrl2  = 0x00,
 327                .vgate_misc    = 0x1c,
 328
 329        },{
 330                .name          = "PAL-M",
 331                .id            = V4L2_STD_PAL_M,
 332                NORM_525_60,
 333
 334                .sync_control  = 0x59,
 335                .luma_control  = 0x40,
 336                .chroma_ctrl1  = 0xb9,
 337                .chroma_gain   = 0x2a,
 338                .chroma_ctrl2  = 0x0e,
 339                .vgate_misc    = 0x18,
 340
 341        },{
 342                .name          = "PAL-Nc",
 343                .id            = V4L2_STD_PAL_Nc,
 344                NORM_625_50,
 345
 346                .sync_control  = 0x18,
 347                .luma_control  = 0x40,
 348                .chroma_ctrl1  = 0xa1,
 349                .chroma_gain   = 0x2a,
 350                .chroma_ctrl2  = 0x06,
 351                .vgate_misc    = 0x1c,
 352
 353        },{
 354                .name          = "PAL-60",
 355                .id            = V4L2_STD_PAL_60,
 356
 357                .h_start       = 0,
 358                .h_stop        = 719,
 359                .video_v_start = 23,
 360                .video_v_stop  = 262,
 361                .vbi_v_start_0 = 10,
 362                .vbi_v_stop_0  = 21,
 363                .vbi_v_start_1 = 273,
 364                .src_timing    = 7,
 365
 366                .sync_control  = 0x18,
 367                .luma_control  = 0x40,
 368                .chroma_ctrl1  = 0x81,
 369                .chroma_gain   = 0x2a,
 370                .chroma_ctrl2  = 0x06,
 371                .vgate_misc    = 0x1c,
 372        }
 373};
 374#define TVNORMS ARRAY_SIZE(tvnorms)
 375
 376static struct saa7134_format* format_by_fourcc(unsigned int fourcc)
 377{
 378        unsigned int i;
 379
 380        for (i = 0; i < FORMATS; i++)
 381                if (formats[i].fourcc == fourcc)
 382                        return formats+i;
 383        return NULL;
 384}
 385
 386/* ------------------------------------------------------------------ */
 387
 388static void set_tvnorm(struct saa7134_dev *dev, struct saa7134_tvnorm *norm)
 389{
 390        video_dbg("set tv norm = %s\n", norm->name);
 391        dev->tvnorm = norm;
 392
 393        /* setup cropping */
 394        dev->crop_bounds.left    = norm->h_start;
 395        dev->crop_defrect.left   = norm->h_start;
 396        dev->crop_bounds.width   = norm->h_stop - norm->h_start +1;
 397        dev->crop_defrect.width  = norm->h_stop - norm->h_start +1;
 398
 399        dev->crop_bounds.top     = (norm->vbi_v_stop_0+1)*2;
 400        dev->crop_defrect.top    = norm->video_v_start*2;
 401        dev->crop_bounds.height  = ((norm->id & V4L2_STD_525_60) ? 524 : 624)
 402                - dev->crop_bounds.top;
 403        dev->crop_defrect.height = (norm->video_v_stop - norm->video_v_start +1)*2;
 404
 405        dev->crop_current = dev->crop_defrect;
 406
 407        saa7134_set_tvnorm_hw(dev);
 408}
 409
 410static void video_mux(struct saa7134_dev *dev, int input)
 411{
 412        video_dbg("video input = %d [%s]\n",
 413                  input, saa7134_input_name[card_in(dev, input).type]);
 414        dev->ctl_input = input;
 415        set_tvnorm(dev, dev->tvnorm);
 416        saa7134_tvaudio_setinput(dev, &card_in(dev, input));
 417}
 418
 419
 420static void saa7134_set_decoder(struct saa7134_dev *dev)
 421{
 422        int luma_control, sync_control, chroma_ctrl1, mux;
 423
 424        struct saa7134_tvnorm *norm = dev->tvnorm;
 425        mux = card_in(dev, dev->ctl_input).vmux;
 426
 427        luma_control = norm->luma_control;
 428        sync_control = norm->sync_control;
 429        chroma_ctrl1 = norm->chroma_ctrl1;
 430
 431        if (mux > 5)
 432                luma_control |= 0x80; /* svideo */
 433        if (noninterlaced || dev->nosignal)
 434                sync_control |= 0x20;
 435
 436        /* switch on auto standard detection */
 437        sync_control |= SAA7134_SYNC_CTRL_AUFD;
 438        chroma_ctrl1 |= SAA7134_CHROMA_CTRL1_AUTO0;
 439        chroma_ctrl1 &= ~SAA7134_CHROMA_CTRL1_FCTC;
 440        luma_control &= ~SAA7134_LUMA_CTRL_LDEL;
 441
 442        /* setup video decoder */
 443        saa_writeb(SAA7134_INCR_DELAY,            0x08);
 444        saa_writeb(SAA7134_ANALOG_IN_CTRL1,       0xc0 | mux);
 445        saa_writeb(SAA7134_ANALOG_IN_CTRL2,       0x00);
 446
 447        saa_writeb(SAA7134_ANALOG_IN_CTRL3,       0x90);
 448        saa_writeb(SAA7134_ANALOG_IN_CTRL4,       0x90);
 449        saa_writeb(SAA7134_HSYNC_START,           0xeb);
 450        saa_writeb(SAA7134_HSYNC_STOP,            0xe0);
 451        saa_writeb(SAA7134_SOURCE_TIMING1,        norm->src_timing);
 452
 453        saa_writeb(SAA7134_SYNC_CTRL,             sync_control);
 454        saa_writeb(SAA7134_LUMA_CTRL,             luma_control);
 455        saa_writeb(SAA7134_DEC_LUMA_BRIGHT,       dev->ctl_bright);
 456
 457        saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
 458                dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
 459
 460        saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
 461                dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
 462
 463        saa_writeb(SAA7134_DEC_CHROMA_HUE,        dev->ctl_hue);
 464        saa_writeb(SAA7134_CHROMA_CTRL1,          chroma_ctrl1);
 465        saa_writeb(SAA7134_CHROMA_GAIN,           norm->chroma_gain);
 466
 467        saa_writeb(SAA7134_CHROMA_CTRL2,          norm->chroma_ctrl2);
 468        saa_writeb(SAA7134_MODE_DELAY_CTRL,       0x00);
 469
 470        saa_writeb(SAA7134_ANALOG_ADC,            0x01);
 471        saa_writeb(SAA7134_VGATE_START,           0x11);
 472        saa_writeb(SAA7134_VGATE_STOP,            0xfe);
 473        saa_writeb(SAA7134_MISC_VGATE_MSB,        norm->vgate_misc);
 474        saa_writeb(SAA7134_RAW_DATA_GAIN,         0x40);
 475        saa_writeb(SAA7134_RAW_DATA_OFFSET,       0x80);
 476}
 477
 478void saa7134_set_tvnorm_hw(struct saa7134_dev *dev)
 479{
 480        saa7134_set_decoder(dev);
 481
 482        saa_call_all(dev, video, s_std, dev->tvnorm->id);
 483        /* Set the correct norm for the saa6752hs. This function
 484           does nothing if there is no saa6752hs. */
 485        saa_call_empress(dev, video, s_std, dev->tvnorm->id);
 486}
 487
 488static void set_h_prescale(struct saa7134_dev *dev, int task, int prescale)
 489{
 490        static const struct {
 491                int xpsc;
 492                int xacl;
 493                int xc2_1;
 494                int xdcg;
 495                int vpfy;
 496        } vals[] = {
 497                /* XPSC XACL XC2_1 XDCG VPFY */
 498                {    1,   0,    0,    0,   0 },
 499                {    2,   2,    1,    2,   2 },
 500                {    3,   4,    1,    3,   2 },
 501                {    4,   8,    1,    4,   2 },
 502                {    5,   8,    1,    4,   2 },
 503                {    6,   8,    1,    4,   3 },
 504                {    7,   8,    1,    4,   3 },
 505                {    8,  15,    0,    4,   3 },
 506                {    9,  15,    0,    4,   3 },
 507                {   10,  16,    1,    5,   3 },
 508        };
 509        static const int count = ARRAY_SIZE(vals);
 510        int i;
 511
 512        for (i = 0; i < count; i++)
 513                if (vals[i].xpsc == prescale)
 514                        break;
 515        if (i == count)
 516                return;
 517
 518        saa_writeb(SAA7134_H_PRESCALE(task), vals[i].xpsc);
 519        saa_writeb(SAA7134_ACC_LENGTH(task), vals[i].xacl);
 520        saa_writeb(SAA7134_LEVEL_CTRL(task),
 521                   (vals[i].xc2_1 << 3) | (vals[i].xdcg));
 522        saa_andorb(SAA7134_FIR_PREFILTER_CTRL(task), 0x0f,
 523                   (vals[i].vpfy << 2) | vals[i].vpfy);
 524}
 525
 526static void set_v_scale(struct saa7134_dev *dev, int task, int yscale)
 527{
 528        int val,mirror;
 529
 530        saa_writeb(SAA7134_V_SCALE_RATIO1(task), yscale &  0xff);
 531        saa_writeb(SAA7134_V_SCALE_RATIO2(task), yscale >> 8);
 532
 533        mirror = (dev->ctl_mirror) ? 0x02 : 0x00;
 534        if (yscale < 2048) {
 535                /* LPI */
 536                video_dbg("yscale LPI yscale=%d\n", yscale);
 537                saa_writeb(SAA7134_V_FILTER(task), 0x00 | mirror);
 538                saa_writeb(SAA7134_LUMA_CONTRAST(task), 0x40);
 539                saa_writeb(SAA7134_CHROMA_SATURATION(task), 0x40);
 540        } else {
 541                /* ACM */
 542                val = 0x40 * 1024 / yscale;
 543                video_dbg("yscale ACM yscale=%d val=0x%x\n", yscale, val);
 544                saa_writeb(SAA7134_V_FILTER(task), 0x01 | mirror);
 545                saa_writeb(SAA7134_LUMA_CONTRAST(task), val);
 546                saa_writeb(SAA7134_CHROMA_SATURATION(task), val);
 547        }
 548        saa_writeb(SAA7134_LUMA_BRIGHT(task),       0x80);
 549}
 550
 551static void set_size(struct saa7134_dev *dev, int task,
 552                     int width, int height, int interlace)
 553{
 554        int prescale,xscale,yscale,y_even,y_odd;
 555        int h_start, h_stop, v_start, v_stop;
 556        int div = interlace ? 2 : 1;
 557
 558        /* setup video scaler */
 559        h_start = dev->crop_current.left;
 560        v_start = dev->crop_current.top/2;
 561        h_stop  = (dev->crop_current.left + dev->crop_current.width -1);
 562        v_stop  = (dev->crop_current.top + dev->crop_current.height -1)/2;
 563
 564        saa_writeb(SAA7134_VIDEO_H_START1(task), h_start &  0xff);
 565        saa_writeb(SAA7134_VIDEO_H_START2(task), h_start >> 8);
 566        saa_writeb(SAA7134_VIDEO_H_STOP1(task),  h_stop  &  0xff);
 567        saa_writeb(SAA7134_VIDEO_H_STOP2(task),  h_stop  >> 8);
 568        saa_writeb(SAA7134_VIDEO_V_START1(task), v_start &  0xff);
 569        saa_writeb(SAA7134_VIDEO_V_START2(task), v_start >> 8);
 570        saa_writeb(SAA7134_VIDEO_V_STOP1(task),  v_stop  &  0xff);
 571        saa_writeb(SAA7134_VIDEO_V_STOP2(task),  v_stop  >> 8);
 572
 573        prescale = dev->crop_current.width / width;
 574        if (0 == prescale)
 575                prescale = 1;
 576        xscale = 1024 * dev->crop_current.width / prescale / width;
 577        yscale = 512 * div * dev->crop_current.height / height;
 578        video_dbg("prescale=%d xscale=%d yscale=%d\n",
 579                  prescale, xscale, yscale);
 580        set_h_prescale(dev,task,prescale);
 581        saa_writeb(SAA7134_H_SCALE_INC1(task),      xscale &  0xff);
 582        saa_writeb(SAA7134_H_SCALE_INC2(task),      xscale >> 8);
 583        set_v_scale(dev,task,yscale);
 584
 585        saa_writeb(SAA7134_VIDEO_PIXELS1(task),     width  & 0xff);
 586        saa_writeb(SAA7134_VIDEO_PIXELS2(task),     width  >> 8);
 587        saa_writeb(SAA7134_VIDEO_LINES1(task),      height/div & 0xff);
 588        saa_writeb(SAA7134_VIDEO_LINES2(task),      height/div >> 8);
 589
 590        /* deinterlace y offsets */
 591        y_odd  = dev->ctl_y_odd;
 592        y_even = dev->ctl_y_even;
 593        saa_writeb(SAA7134_V_PHASE_OFFSET0(task), y_odd);
 594        saa_writeb(SAA7134_V_PHASE_OFFSET1(task), y_even);
 595        saa_writeb(SAA7134_V_PHASE_OFFSET2(task), y_odd);
 596        saa_writeb(SAA7134_V_PHASE_OFFSET3(task), y_even);
 597}
 598
 599/* ------------------------------------------------------------------ */
 600
 601struct cliplist {
 602        __u16 position;
 603        __u8  enable;
 604        __u8  disable;
 605};
 606
 607static void set_cliplist(struct saa7134_dev *dev, int reg,
 608                        struct cliplist *cl, int entries, char *name)
 609{
 610        __u8 winbits = 0;
 611        int i;
 612
 613        for (i = 0; i < entries; i++) {
 614                winbits |= cl[i].enable;
 615                winbits &= ~cl[i].disable;
 616                if (i < 15 && cl[i].position == cl[i+1].position)
 617                        continue;
 618                saa_writeb(reg + 0, winbits);
 619                saa_writeb(reg + 2, cl[i].position & 0xff);
 620                saa_writeb(reg + 3, cl[i].position >> 8);
 621                video_dbg("clip: %s winbits=%02x pos=%d\n",
 622                        name,winbits,cl[i].position);
 623                reg += 8;
 624        }
 625        for (; reg < 0x400; reg += 8) {
 626                saa_writeb(reg+ 0, 0);
 627                saa_writeb(reg + 1, 0);
 628                saa_writeb(reg + 2, 0);
 629                saa_writeb(reg + 3, 0);
 630        }
 631}
 632
 633static int clip_range(int val)
 634{
 635        if (val < 0)
 636                val = 0;
 637        return val;
 638}
 639
 640/* Sort into smallest position first order */
 641static int cliplist_cmp(const void *a, const void *b)
 642{
 643        const struct cliplist *cla = a;
 644        const struct cliplist *clb = b;
 645        if (cla->position < clb->position)
 646                return -1;
 647        if (cla->position > clb->position)
 648                return 1;
 649        return 0;
 650}
 651
 652static int setup_clipping(struct saa7134_dev *dev, struct v4l2_clip *clips,
 653                          int nclips, int interlace)
 654{
 655        struct cliplist col[16], row[16];
 656        int cols = 0, rows = 0, i;
 657        int div = interlace ? 2 : 1;
 658
 659        memset(col, 0, sizeof(col));
 660        memset(row, 0, sizeof(row));
 661        for (i = 0; i < nclips && i < 8; i++) {
 662                col[cols].position = clip_range(clips[i].c.left);
 663                col[cols].enable   = (1 << i);
 664                cols++;
 665                col[cols].position = clip_range(clips[i].c.left+clips[i].c.width);
 666                col[cols].disable  = (1 << i);
 667                cols++;
 668                row[rows].position = clip_range(clips[i].c.top / div);
 669                row[rows].enable   = (1 << i);
 670                rows++;
 671                row[rows].position = clip_range((clips[i].c.top + clips[i].c.height)
 672                                                / div);
 673                row[rows].disable  = (1 << i);
 674                rows++;
 675        }
 676        sort(col, cols, sizeof col[0], cliplist_cmp, NULL);
 677        sort(row, rows, sizeof row[0], cliplist_cmp, NULL);
 678        set_cliplist(dev,0x380,col,cols,"cols");
 679        set_cliplist(dev,0x384,row,rows,"rows");
 680        return 0;
 681}
 682
 683static int verify_preview(struct saa7134_dev *dev, struct v4l2_window *win, bool try)
 684{
 685        enum v4l2_field field;
 686        int maxw, maxh;
 687
 688        if (!try && (dev->ovbuf.base == NULL || dev->ovfmt == NULL))
 689                return -EINVAL;
 690        if (win->w.width < 48)
 691                win->w.width = 48;
 692        if (win->w.height < 32)
 693                win->w.height = 32;
 694        if (win->clipcount > 8)
 695                win->clipcount = 8;
 696
 697        win->chromakey = 0;
 698        win->global_alpha = 0;
 699        field = win->field;
 700        maxw  = dev->crop_current.width;
 701        maxh  = dev->crop_current.height;
 702
 703        if (V4L2_FIELD_ANY == field) {
 704                field = (win->w.height > maxh/2)
 705                        ? V4L2_FIELD_INTERLACED
 706                        : V4L2_FIELD_TOP;
 707        }
 708        switch (field) {
 709        case V4L2_FIELD_TOP:
 710        case V4L2_FIELD_BOTTOM:
 711                maxh = maxh / 2;
 712                break;
 713        default:
 714                field = V4L2_FIELD_INTERLACED;
 715                break;
 716        }
 717
 718        win->field = field;
 719        if (win->w.width > maxw)
 720                win->w.width = maxw;
 721        if (win->w.height > maxh)
 722                win->w.height = maxh;
 723        return 0;
 724}
 725
 726static int start_preview(struct saa7134_dev *dev)
 727{
 728        unsigned long base,control,bpl;
 729        int err;
 730
 731        err = verify_preview(dev, &dev->win, false);
 732        if (0 != err)
 733                return err;
 734
 735        dev->ovfield = dev->win.field;
 736        video_dbg("start_preview %dx%d+%d+%d %s field=%s\n",
 737                dev->win.w.width, dev->win.w.height,
 738                dev->win.w.left, dev->win.w.top,
 739                dev->ovfmt->name, v4l2_field_names[dev->ovfield]);
 740
 741        /* setup window + clipping */
 742        set_size(dev, TASK_B, dev->win.w.width, dev->win.w.height,
 743                 V4L2_FIELD_HAS_BOTH(dev->ovfield));
 744        setup_clipping(dev, dev->clips, dev->nclips,
 745                       V4L2_FIELD_HAS_BOTH(dev->ovfield));
 746        if (dev->ovfmt->yuv)
 747                saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x03);
 748        else
 749                saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x01);
 750        saa_writeb(SAA7134_OFMT_VIDEO_B, dev->ovfmt->pm | 0x20);
 751
 752        /* dma: setup channel 1 (= Video Task B) */
 753        base  = (unsigned long)dev->ovbuf.base;
 754        base += dev->ovbuf.fmt.bytesperline * dev->win.w.top;
 755        base += dev->ovfmt->depth/8         * dev->win.w.left;
 756        bpl   = dev->ovbuf.fmt.bytesperline;
 757        control = SAA7134_RS_CONTROL_BURST_16;
 758        if (dev->ovfmt->bswap)
 759                control |= SAA7134_RS_CONTROL_BSWAP;
 760        if (dev->ovfmt->wswap)
 761                control |= SAA7134_RS_CONTROL_WSWAP;
 762        if (V4L2_FIELD_HAS_BOTH(dev->ovfield)) {
 763                saa_writel(SAA7134_RS_BA1(1),base);
 764                saa_writel(SAA7134_RS_BA2(1),base+bpl);
 765                saa_writel(SAA7134_RS_PITCH(1),bpl*2);
 766                saa_writel(SAA7134_RS_CONTROL(1),control);
 767        } else {
 768                saa_writel(SAA7134_RS_BA1(1),base);
 769                saa_writel(SAA7134_RS_BA2(1),base);
 770                saa_writel(SAA7134_RS_PITCH(1),bpl);
 771                saa_writel(SAA7134_RS_CONTROL(1),control);
 772        }
 773
 774        /* start dma */
 775        dev->ovenable = 1;
 776        saa7134_set_dmabits(dev);
 777
 778        return 0;
 779}
 780
 781static int stop_preview(struct saa7134_dev *dev)
 782{
 783        dev->ovenable = 0;
 784        saa7134_set_dmabits(dev);
 785        return 0;
 786}
 787
 788/*
 789 * Media Controller helper functions
 790 */
 791
 792static int saa7134_enable_analog_tuner(struct saa7134_dev *dev)
 793{
 794#ifdef CONFIG_MEDIA_CONTROLLER
 795        struct media_device *mdev = dev->media_dev;
 796        struct media_entity *source;
 797        struct media_link *link, *found_link = NULL;
 798        int ret, active_links = 0;
 799
 800        if (!mdev || !dev->decoder)
 801                return 0;
 802
 803        /*
 804         * This will find the tuner that is connected into the decoder.
 805         * Technically, this is not 100% correct, as the device may be
 806         * using an analog input instead of the tuner. However, as we can't
 807         * do DVB streaming while the DMA engine is being used for V4L2,
 808         * this should be enough for the actual needs.
 809         */
 810        list_for_each_entry(link, &dev->decoder->links, list) {
 811                if (link->sink->entity == dev->decoder) {
 812                        found_link = link;
 813                        if (link->flags & MEDIA_LNK_FL_ENABLED)
 814                                active_links++;
 815                        break;
 816                }
 817        }
 818
 819        if (active_links == 1 || !found_link)
 820                return 0;
 821
 822        source = found_link->source->entity;
 823        list_for_each_entry(link, &source->links, list) {
 824                struct media_entity *sink;
 825                int flags = 0;
 826
 827                sink = link->sink->entity;
 828
 829                if (sink == dev->decoder)
 830                        flags = MEDIA_LNK_FL_ENABLED;
 831
 832                ret = media_entity_setup_link(link, flags);
 833                if (ret) {
 834                        pr_err("Couldn't change link %s->%s to %s. Error %d\n",
 835                               source->name, sink->name,
 836                               flags ? "enabled" : "disabled",
 837                               ret);
 838                        return ret;
 839                }
 840        }
 841#endif
 842        return 0;
 843}
 844
 845/* ------------------------------------------------------------------ */
 846
 847static int buffer_activate(struct saa7134_dev *dev,
 848                           struct saa7134_buf *buf,
 849                           struct saa7134_buf *next)
 850{
 851        struct saa7134_dmaqueue *dmaq = buf->vb2.vb2_buf.vb2_queue->drv_priv;
 852        unsigned long base,control,bpl;
 853        unsigned long bpl_uv,lines_uv,base2,base3,tmp; /* planar */
 854
 855        video_dbg("buffer_activate buf=%p\n", buf);
 856        buf->top_seen = 0;
 857
 858        set_size(dev, TASK_A, dev->width, dev->height,
 859                 V4L2_FIELD_HAS_BOTH(dev->field));
 860        if (dev->fmt->yuv)
 861                saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x03);
 862        else
 863                saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x01);
 864        saa_writeb(SAA7134_OFMT_VIDEO_A, dev->fmt->pm);
 865
 866        /* DMA: setup channel 0 (= Video Task A0) */
 867        base  = saa7134_buffer_base(buf);
 868        if (dev->fmt->planar)
 869                bpl = dev->width;
 870        else
 871                bpl = (dev->width * dev->fmt->depth) / 8;
 872        control = SAA7134_RS_CONTROL_BURST_16 |
 873                SAA7134_RS_CONTROL_ME |
 874                (dmaq->pt.dma >> 12);
 875        if (dev->fmt->bswap)
 876                control |= SAA7134_RS_CONTROL_BSWAP;
 877        if (dev->fmt->wswap)
 878                control |= SAA7134_RS_CONTROL_WSWAP;
 879        if (V4L2_FIELD_HAS_BOTH(dev->field)) {
 880                /* interlaced */
 881                saa_writel(SAA7134_RS_BA1(0),base);
 882                saa_writel(SAA7134_RS_BA2(0),base+bpl);
 883                saa_writel(SAA7134_RS_PITCH(0),bpl*2);
 884        } else {
 885                /* non-interlaced */
 886                saa_writel(SAA7134_RS_BA1(0),base);
 887                saa_writel(SAA7134_RS_BA2(0),base);
 888                saa_writel(SAA7134_RS_PITCH(0),bpl);
 889        }
 890        saa_writel(SAA7134_RS_CONTROL(0),control);
 891
 892        if (dev->fmt->planar) {
 893                /* DMA: setup channel 4+5 (= planar task A) */
 894                bpl_uv   = bpl >> dev->fmt->hshift;
 895                lines_uv = dev->height >> dev->fmt->vshift;
 896                base2    = base + bpl * dev->height;
 897                base3    = base2 + bpl_uv * lines_uv;
 898                if (dev->fmt->uvswap)
 899                        tmp = base2, base2 = base3, base3 = tmp;
 900                video_dbg("uv: bpl=%ld lines=%ld base2/3=%ld/%ld\n",
 901                        bpl_uv,lines_uv,base2,base3);
 902                if (V4L2_FIELD_HAS_BOTH(dev->field)) {
 903                        /* interlaced */
 904                        saa_writel(SAA7134_RS_BA1(4),base2);
 905                        saa_writel(SAA7134_RS_BA2(4),base2+bpl_uv);
 906                        saa_writel(SAA7134_RS_PITCH(4),bpl_uv*2);
 907                        saa_writel(SAA7134_RS_BA1(5),base3);
 908                        saa_writel(SAA7134_RS_BA2(5),base3+bpl_uv);
 909                        saa_writel(SAA7134_RS_PITCH(5),bpl_uv*2);
 910                } else {
 911                        /* non-interlaced */
 912                        saa_writel(SAA7134_RS_BA1(4),base2);
 913                        saa_writel(SAA7134_RS_BA2(4),base2);
 914                        saa_writel(SAA7134_RS_PITCH(4),bpl_uv);
 915                        saa_writel(SAA7134_RS_BA1(5),base3);
 916                        saa_writel(SAA7134_RS_BA2(5),base3);
 917                        saa_writel(SAA7134_RS_PITCH(5),bpl_uv);
 918                }
 919                saa_writel(SAA7134_RS_CONTROL(4),control);
 920                saa_writel(SAA7134_RS_CONTROL(5),control);
 921        }
 922
 923        /* start DMA */
 924        saa7134_set_dmabits(dev);
 925        mod_timer(&dmaq->timeout, jiffies + BUFFER_TIMEOUT);
 926        return 0;
 927}
 928
 929static int buffer_init(struct vb2_buffer *vb2)
 930{
 931        struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
 932        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
 933        struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 934
 935        dmaq->curr = NULL;
 936        buf->activate = buffer_activate;
 937        return 0;
 938}
 939
 940static int buffer_prepare(struct vb2_buffer *vb2)
 941{
 942        struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
 943        struct saa7134_dev *dev = dmaq->dev;
 944        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
 945        struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 946        struct sg_table *dma = vb2_dma_sg_plane_desc(vb2, 0);
 947        unsigned int size;
 948
 949        if (dma->sgl->offset) {
 950                pr_err("The buffer is not page-aligned\n");
 951                return -EINVAL;
 952        }
 953        size = (dev->width * dev->height * dev->fmt->depth) >> 3;
 954        if (vb2_plane_size(vb2, 0) < size)
 955                return -EINVAL;
 956
 957        vb2_set_plane_payload(vb2, 0, size);
 958        vbuf->field = dev->field;
 959
 960        return saa7134_pgtable_build(dev->pci, &dmaq->pt, dma->sgl, dma->nents,
 961                                    saa7134_buffer_startpage(buf));
 962}
 963
 964static int queue_setup(struct vb2_queue *q,
 965                           unsigned int *nbuffers, unsigned int *nplanes,
 966                           unsigned int sizes[], struct device *alloc_devs[])
 967{
 968        struct saa7134_dmaqueue *dmaq = q->drv_priv;
 969        struct saa7134_dev *dev = dmaq->dev;
 970        int size = dev->fmt->depth * dev->width * dev->height >> 3;
 971
 972        if (dev->width    < 48 ||
 973            dev->height   < 32 ||
 974            dev->width/4  > dev->crop_current.width  ||
 975            dev->height/4 > dev->crop_current.height ||
 976            dev->width    > dev->crop_bounds.width  ||
 977            dev->height   > dev->crop_bounds.height)
 978                return -EINVAL;
 979
 980        *nbuffers = saa7134_buffer_count(size, *nbuffers);
 981        *nplanes = 1;
 982        sizes[0] = size;
 983
 984        saa7134_enable_analog_tuner(dev);
 985
 986        return 0;
 987}
 988
 989/*
 990 * move buffer to hardware queue
 991 */
 992void saa7134_vb2_buffer_queue(struct vb2_buffer *vb)
 993{
 994        struct saa7134_dmaqueue *dmaq = vb->vb2_queue->drv_priv;
 995        struct saa7134_dev *dev = dmaq->dev;
 996        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 997        struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 998
 999        saa7134_buffer_queue(dev, dmaq, buf);
1000}
1001EXPORT_SYMBOL_GPL(saa7134_vb2_buffer_queue);
1002
1003int saa7134_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
1004{
1005        struct saa7134_dmaqueue *dmaq = vq->drv_priv;
1006        struct saa7134_dev *dev = dmaq->dev;
1007
1008        /*
1009         * Planar video capture and TS share the same DMA channel,
1010         * so only one can be active at a time.
1011         */
1012        if (card_is_empress(dev) && vb2_is_busy(&dev->empress_vbq) &&
1013            dmaq == &dev->video_q && dev->fmt->planar) {
1014                struct saa7134_buf *buf, *tmp;
1015
1016                list_for_each_entry_safe(buf, tmp, &dmaq->queue, entry) {
1017                        list_del(&buf->entry);
1018                        vb2_buffer_done(&buf->vb2.vb2_buf,
1019                                        VB2_BUF_STATE_QUEUED);
1020                }
1021                if (dmaq->curr) {
1022                        vb2_buffer_done(&dmaq->curr->vb2.vb2_buf,
1023                                        VB2_BUF_STATE_QUEUED);
1024                        dmaq->curr = NULL;
1025                }
1026                return -EBUSY;
1027        }
1028
1029        /* The SAA7134 has a 1K FIFO; the datasheet suggests that when
1030         * configured conservatively, there's 22 usec of buffering for video.
1031         * We therefore request a DMA latency of 20 usec, giving us 2 usec of
1032         * margin in case the FIFO is configured differently to the datasheet.
1033         * Unfortunately, I lack register-level documentation to check the
1034         * Linux FIFO setup and confirm the perfect value.
1035         */
1036        if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
1037            (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
1038                pm_qos_add_request(&dev->qos_request,
1039                        PM_QOS_CPU_DMA_LATENCY, 20);
1040        dmaq->seq_nr = 0;
1041
1042        return 0;
1043}
1044
1045void saa7134_vb2_stop_streaming(struct vb2_queue *vq)
1046{
1047        struct saa7134_dmaqueue *dmaq = vq->drv_priv;
1048        struct saa7134_dev *dev = dmaq->dev;
1049
1050        saa7134_stop_streaming(dev, dmaq);
1051
1052        if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
1053            (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
1054                pm_qos_remove_request(&dev->qos_request);
1055}
1056
1057static const struct vb2_ops vb2_qops = {
1058        .queue_setup    = queue_setup,
1059        .buf_init       = buffer_init,
1060        .buf_prepare    = buffer_prepare,
1061        .buf_queue      = saa7134_vb2_buffer_queue,
1062        .wait_prepare   = vb2_ops_wait_prepare,
1063        .wait_finish    = vb2_ops_wait_finish,
1064        .start_streaming = saa7134_vb2_start_streaming,
1065        .stop_streaming = saa7134_vb2_stop_streaming,
1066};
1067
1068/* ------------------------------------------------------------------ */
1069
1070static int saa7134_s_ctrl(struct v4l2_ctrl *ctrl)
1071{
1072        struct saa7134_dev *dev = container_of(ctrl->handler, struct saa7134_dev, ctrl_handler);
1073        unsigned long flags;
1074        int restart_overlay = 0;
1075
1076        switch (ctrl->id) {
1077        case V4L2_CID_BRIGHTNESS:
1078                dev->ctl_bright = ctrl->val;
1079                saa_writeb(SAA7134_DEC_LUMA_BRIGHT, ctrl->val);
1080                break;
1081        case V4L2_CID_HUE:
1082                dev->ctl_hue = ctrl->val;
1083                saa_writeb(SAA7134_DEC_CHROMA_HUE, ctrl->val);
1084                break;
1085        case V4L2_CID_CONTRAST:
1086                dev->ctl_contrast = ctrl->val;
1087                saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1088                           dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1089                break;
1090        case V4L2_CID_SATURATION:
1091                dev->ctl_saturation = ctrl->val;
1092                saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1093                           dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1094                break;
1095        case V4L2_CID_AUDIO_MUTE:
1096                dev->ctl_mute = ctrl->val;
1097                saa7134_tvaudio_setmute(dev);
1098                break;
1099        case V4L2_CID_AUDIO_VOLUME:
1100                dev->ctl_volume = ctrl->val;
1101                saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
1102                break;
1103        case V4L2_CID_PRIVATE_INVERT:
1104                dev->ctl_invert = ctrl->val;
1105                saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1106                           dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1107                saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1108                           dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1109                break;
1110        case V4L2_CID_HFLIP:
1111                dev->ctl_mirror = ctrl->val;
1112                restart_overlay = 1;
1113                break;
1114        case V4L2_CID_PRIVATE_Y_EVEN:
1115                dev->ctl_y_even = ctrl->val;
1116                restart_overlay = 1;
1117                break;
1118        case V4L2_CID_PRIVATE_Y_ODD:
1119                dev->ctl_y_odd = ctrl->val;
1120                restart_overlay = 1;
1121                break;
1122        case V4L2_CID_PRIVATE_AUTOMUTE:
1123        {
1124                struct v4l2_priv_tun_config tda9887_cfg;
1125
1126                tda9887_cfg.tuner = TUNER_TDA9887;
1127                tda9887_cfg.priv = &dev->tda9887_conf;
1128
1129                dev->ctl_automute = ctrl->val;
1130                if (dev->tda9887_conf) {
1131                        if (dev->ctl_automute)
1132                                dev->tda9887_conf |= TDA9887_AUTOMUTE;
1133                        else
1134                                dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
1135
1136                        saa_call_all(dev, tuner, s_config, &tda9887_cfg);
1137                }
1138                break;
1139        }
1140        default:
1141                return -EINVAL;
1142        }
1143        if (restart_overlay && dev->overlay_owner) {
1144                spin_lock_irqsave(&dev->slock, flags);
1145                stop_preview(dev);
1146                start_preview(dev);
1147                spin_unlock_irqrestore(&dev->slock, flags);
1148        }
1149        return 0;
1150}
1151
1152/* ------------------------------------------------------------------ */
1153
1154static int video_open(struct file *file)
1155{
1156        struct video_device *vdev = video_devdata(file);
1157        struct saa7134_dev *dev = video_drvdata(file);
1158        int ret = v4l2_fh_open(file);
1159
1160        if (ret < 0)
1161                return ret;
1162
1163        mutex_lock(&dev->lock);
1164        if (vdev->vfl_type == VFL_TYPE_RADIO) {
1165                /* switch to radio mode */
1166                saa7134_tvaudio_setinput(dev, &card(dev).radio);
1167                saa_call_all(dev, tuner, s_radio);
1168        } else {
1169                /* switch to video/vbi mode */
1170                video_mux(dev, dev->ctl_input);
1171        }
1172        mutex_unlock(&dev->lock);
1173
1174        return 0;
1175}
1176
1177static int video_release(struct file *file)
1178{
1179        struct video_device *vdev = video_devdata(file);
1180        struct saa7134_dev *dev = video_drvdata(file);
1181        struct v4l2_fh *fh = file->private_data;
1182        struct saa6588_command cmd;
1183        unsigned long flags;
1184
1185        mutex_lock(&dev->lock);
1186        saa7134_tvaudio_close(dev);
1187
1188        /* turn off overlay */
1189        if (fh == dev->overlay_owner) {
1190                spin_lock_irqsave(&dev->slock,flags);
1191                stop_preview(dev);
1192                spin_unlock_irqrestore(&dev->slock,flags);
1193                dev->overlay_owner = NULL;
1194        }
1195
1196        if (vdev->vfl_type == VFL_TYPE_RADIO)
1197                v4l2_fh_release(file);
1198        else
1199                _vb2_fop_release(file, NULL);
1200
1201        /* ts-capture will not work in planar mode, so turn it off Hac: 04.05*/
1202        saa_andorb(SAA7134_OFMT_VIDEO_A, 0x1f, 0);
1203        saa_andorb(SAA7134_OFMT_VIDEO_B, 0x1f, 0);
1204        saa_andorb(SAA7134_OFMT_DATA_A, 0x1f, 0);
1205        saa_andorb(SAA7134_OFMT_DATA_B, 0x1f, 0);
1206
1207        saa_call_all(dev, core, s_power, 0);
1208        if (vdev->vfl_type == VFL_TYPE_RADIO)
1209                saa_call_all(dev, core, ioctl, SAA6588_CMD_CLOSE, &cmd);
1210        mutex_unlock(&dev->lock);
1211
1212        return 0;
1213}
1214
1215static ssize_t radio_read(struct file *file, char __user *data,
1216                         size_t count, loff_t *ppos)
1217{
1218        struct saa7134_dev *dev = video_drvdata(file);
1219        struct saa6588_command cmd;
1220
1221        cmd.block_count = count/3;
1222        cmd.nonblocking = file->f_flags & O_NONBLOCK;
1223        cmd.buffer = data;
1224        cmd.instance = file;
1225        cmd.result = -ENODEV;
1226
1227        mutex_lock(&dev->lock);
1228        saa_call_all(dev, core, ioctl, SAA6588_CMD_READ, &cmd);
1229        mutex_unlock(&dev->lock);
1230
1231        return cmd.result;
1232}
1233
1234static unsigned int radio_poll(struct file *file, poll_table *wait)
1235{
1236        struct saa7134_dev *dev = video_drvdata(file);
1237        struct saa6588_command cmd;
1238        unsigned int rc = v4l2_ctrl_poll(file, wait);
1239
1240        cmd.instance = file;
1241        cmd.event_list = wait;
1242        cmd.result = 0;
1243        mutex_lock(&dev->lock);
1244        saa_call_all(dev, core, ioctl, SAA6588_CMD_POLL, &cmd);
1245        mutex_unlock(&dev->lock);
1246
1247        return rc | cmd.result;
1248}
1249
1250/* ------------------------------------------------------------------ */
1251
1252static int saa7134_try_get_set_fmt_vbi_cap(struct file *file, void *priv,
1253                                                struct v4l2_format *f)
1254{
1255        struct saa7134_dev *dev = video_drvdata(file);
1256        struct saa7134_tvnorm *norm = dev->tvnorm;
1257
1258        memset(&f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1259        f->fmt.vbi.sampling_rate = 6750000 * 4;
1260        f->fmt.vbi.samples_per_line = 2048 /* VBI_LINE_LENGTH */;
1261        f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1262        f->fmt.vbi.offset = 64 * 4;
1263        f->fmt.vbi.start[0] = norm->vbi_v_start_0;
1264        f->fmt.vbi.count[0] = norm->vbi_v_stop_0 - norm->vbi_v_start_0 +1;
1265        f->fmt.vbi.start[1] = norm->vbi_v_start_1;
1266        f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1267        f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
1268
1269        return 0;
1270}
1271
1272static int saa7134_g_fmt_vid_cap(struct file *file, void *priv,
1273                                struct v4l2_format *f)
1274{
1275        struct saa7134_dev *dev = video_drvdata(file);
1276
1277        f->fmt.pix.width        = dev->width;
1278        f->fmt.pix.height       = dev->height;
1279        f->fmt.pix.field        = dev->field;
1280        f->fmt.pix.pixelformat  = dev->fmt->fourcc;
1281        if (dev->fmt->planar)
1282                f->fmt.pix.bytesperline = f->fmt.pix.width;
1283        else
1284                f->fmt.pix.bytesperline =
1285                        (f->fmt.pix.width * dev->fmt->depth) / 8;
1286        f->fmt.pix.sizeimage =
1287                (f->fmt.pix.height * f->fmt.pix.width * dev->fmt->depth) / 8;
1288        f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
1289        return 0;
1290}
1291
1292static int saa7134_g_fmt_vid_overlay(struct file *file, void *priv,
1293                                struct v4l2_format *f)
1294{
1295        struct saa7134_dev *dev = video_drvdata(file);
1296        struct v4l2_clip __user *clips = f->fmt.win.clips;
1297        u32 clipcount = f->fmt.win.clipcount;
1298        int err = 0;
1299        int i;
1300
1301        if (saa7134_no_overlay > 0) {
1302                pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1303                return -EINVAL;
1304        }
1305        f->fmt.win = dev->win;
1306        f->fmt.win.clips = clips;
1307        if (clips == NULL)
1308                clipcount = 0;
1309        if (dev->nclips < clipcount)
1310                clipcount = dev->nclips;
1311        f->fmt.win.clipcount = clipcount;
1312
1313        for (i = 0; !err && i < clipcount; i++) {
1314                if (copy_to_user(&f->fmt.win.clips[i].c, &dev->clips[i].c,
1315                                        sizeof(struct v4l2_rect)))
1316                        err = -EFAULT;
1317        }
1318
1319        return err;
1320}
1321
1322static int saa7134_try_fmt_vid_cap(struct file *file, void *priv,
1323                                                struct v4l2_format *f)
1324{
1325        struct saa7134_dev *dev = video_drvdata(file);
1326        struct saa7134_format *fmt;
1327        enum v4l2_field field;
1328        unsigned int maxw, maxh;
1329
1330        fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1331        if (NULL == fmt)
1332                return -EINVAL;
1333
1334        field = f->fmt.pix.field;
1335        maxw  = min(dev->crop_current.width*4,  dev->crop_bounds.width);
1336        maxh  = min(dev->crop_current.height*4, dev->crop_bounds.height);
1337
1338        if (V4L2_FIELD_ANY == field) {
1339                field = (f->fmt.pix.height > maxh/2)
1340                        ? V4L2_FIELD_INTERLACED
1341                        : V4L2_FIELD_BOTTOM;
1342        }
1343        switch (field) {
1344        case V4L2_FIELD_TOP:
1345        case V4L2_FIELD_BOTTOM:
1346                maxh = maxh / 2;
1347                break;
1348        default:
1349                field = V4L2_FIELD_INTERLACED;
1350                break;
1351        }
1352
1353        f->fmt.pix.field = field;
1354        if (f->fmt.pix.width  < 48)
1355                f->fmt.pix.width  = 48;
1356        if (f->fmt.pix.height < 32)
1357                f->fmt.pix.height = 32;
1358        if (f->fmt.pix.width > maxw)
1359                f->fmt.pix.width = maxw;
1360        if (f->fmt.pix.height > maxh)
1361                f->fmt.pix.height = maxh;
1362        f->fmt.pix.width &= ~0x03;
1363        if (fmt->planar)
1364                f->fmt.pix.bytesperline = f->fmt.pix.width;
1365        else
1366                f->fmt.pix.bytesperline =
1367                        (f->fmt.pix.width * fmt->depth) / 8;
1368        f->fmt.pix.sizeimage =
1369                (f->fmt.pix.height * f->fmt.pix.width * fmt->depth) / 8;
1370        f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
1371
1372        return 0;
1373}
1374
1375static int saa7134_try_fmt_vid_overlay(struct file *file, void *priv,
1376                                                struct v4l2_format *f)
1377{
1378        struct saa7134_dev *dev = video_drvdata(file);
1379
1380        if (saa7134_no_overlay > 0) {
1381                pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1382                return -EINVAL;
1383        }
1384
1385        if (f->fmt.win.clips == NULL)
1386                f->fmt.win.clipcount = 0;
1387        return verify_preview(dev, &f->fmt.win, true);
1388}
1389
1390static int saa7134_s_fmt_vid_cap(struct file *file, void *priv,
1391                                        struct v4l2_format *f)
1392{
1393        struct saa7134_dev *dev = video_drvdata(file);
1394        int err;
1395
1396        err = saa7134_try_fmt_vid_cap(file, priv, f);
1397        if (0 != err)
1398                return err;
1399
1400        dev->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1401        dev->width = f->fmt.pix.width;
1402        dev->height = f->fmt.pix.height;
1403        dev->field = f->fmt.pix.field;
1404        return 0;
1405}
1406
1407static int saa7134_s_fmt_vid_overlay(struct file *file, void *priv,
1408                                        struct v4l2_format *f)
1409{
1410        struct saa7134_dev *dev = video_drvdata(file);
1411        int err;
1412        unsigned long flags;
1413
1414        if (saa7134_no_overlay > 0) {
1415                pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1416                return -EINVAL;
1417        }
1418        if (f->fmt.win.clips == NULL)
1419                f->fmt.win.clipcount = 0;
1420        err = verify_preview(dev, &f->fmt.win, true);
1421        if (0 != err)
1422                return err;
1423
1424        dev->win    = f->fmt.win;
1425        dev->nclips = f->fmt.win.clipcount;
1426
1427        if (copy_from_user(dev->clips, f->fmt.win.clips,
1428                           sizeof(struct v4l2_clip) * dev->nclips))
1429                return -EFAULT;
1430
1431        if (priv == dev->overlay_owner) {
1432                spin_lock_irqsave(&dev->slock, flags);
1433                stop_preview(dev);
1434                start_preview(dev);
1435                spin_unlock_irqrestore(&dev->slock, flags);
1436        }
1437
1438        return 0;
1439}
1440
1441int saa7134_enum_input(struct file *file, void *priv, struct v4l2_input *i)
1442{
1443        struct saa7134_dev *dev = video_drvdata(file);
1444        unsigned int n;
1445
1446        n = i->index;
1447        if (n >= SAA7134_INPUT_MAX)
1448                return -EINVAL;
1449        if (card_in(dev, i->index).type == SAA7134_NO_INPUT)
1450                return -EINVAL;
1451        i->index = n;
1452        strcpy(i->name, saa7134_input_name[card_in(dev, n).type]);
1453        switch (card_in(dev, n).type) {
1454        case SAA7134_INPUT_TV:
1455        case SAA7134_INPUT_TV_MONO:
1456                i->type = V4L2_INPUT_TYPE_TUNER;
1457                break;
1458        default:
1459                i->type  = V4L2_INPUT_TYPE_CAMERA;
1460                break;
1461        }
1462        if (n == dev->ctl_input) {
1463                int v1 = saa_readb(SAA7134_STATUS_VIDEO1);
1464                int v2 = saa_readb(SAA7134_STATUS_VIDEO2);
1465
1466                if (0 != (v1 & 0x40))
1467                        i->status |= V4L2_IN_ST_NO_H_LOCK;
1468                if (0 != (v2 & 0x40))
1469                        i->status |= V4L2_IN_ST_NO_SIGNAL;
1470                if (0 != (v2 & 0x0e))
1471                        i->status |= V4L2_IN_ST_MACROVISION;
1472        }
1473        i->std = SAA7134_NORMS;
1474        return 0;
1475}
1476EXPORT_SYMBOL_GPL(saa7134_enum_input);
1477
1478int saa7134_g_input(struct file *file, void *priv, unsigned int *i)
1479{
1480        struct saa7134_dev *dev = video_drvdata(file);
1481
1482        *i = dev->ctl_input;
1483        return 0;
1484}
1485EXPORT_SYMBOL_GPL(saa7134_g_input);
1486
1487int saa7134_s_input(struct file *file, void *priv, unsigned int i)
1488{
1489        struct saa7134_dev *dev = video_drvdata(file);
1490
1491        if (i >= SAA7134_INPUT_MAX)
1492                return -EINVAL;
1493        if (card_in(dev, i).type == SAA7134_NO_INPUT)
1494                return -EINVAL;
1495        video_mux(dev, i);
1496        return 0;
1497}
1498EXPORT_SYMBOL_GPL(saa7134_s_input);
1499
1500int saa7134_querycap(struct file *file, void *priv,
1501                                        struct v4l2_capability *cap)
1502{
1503        struct saa7134_dev *dev = video_drvdata(file);
1504        struct video_device *vdev = video_devdata(file);
1505        u32 radio_caps, video_caps, vbi_caps;
1506
1507        unsigned int tuner_type = dev->tuner_type;
1508
1509        strcpy(cap->driver, "saa7134");
1510        strlcpy(cap->card, saa7134_boards[dev->board].name,
1511                sizeof(cap->card));
1512        sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
1513
1514        cap->device_caps = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING;
1515        if ((tuner_type != TUNER_ABSENT) && (tuner_type != UNSET))
1516                cap->device_caps |= V4L2_CAP_TUNER;
1517
1518        radio_caps = V4L2_CAP_RADIO;
1519        if (dev->has_rds)
1520                radio_caps |= V4L2_CAP_RDS_CAPTURE;
1521
1522        video_caps = V4L2_CAP_VIDEO_CAPTURE;
1523        if (saa7134_no_overlay <= 0 && !is_empress(file))
1524                video_caps |= V4L2_CAP_VIDEO_OVERLAY;
1525
1526        vbi_caps = V4L2_CAP_VBI_CAPTURE;
1527
1528        switch (vdev->vfl_type) {
1529        case VFL_TYPE_RADIO:
1530                cap->device_caps |= radio_caps;
1531                break;
1532        case VFL_TYPE_GRABBER:
1533                cap->device_caps |= video_caps;
1534                break;
1535        case VFL_TYPE_VBI:
1536                cap->device_caps |= vbi_caps;
1537                break;
1538        }
1539        cap->capabilities = radio_caps | video_caps | vbi_caps |
1540                cap->device_caps | V4L2_CAP_DEVICE_CAPS;
1541        if (vdev->vfl_type == VFL_TYPE_RADIO) {
1542                cap->device_caps &= ~V4L2_CAP_STREAMING;
1543                if (!dev->has_rds)
1544                        cap->device_caps &= ~V4L2_CAP_READWRITE;
1545        }
1546
1547        return 0;
1548}
1549EXPORT_SYMBOL_GPL(saa7134_querycap);
1550
1551int saa7134_s_std(struct file *file, void *priv, v4l2_std_id id)
1552{
1553        struct saa7134_dev *dev = video_drvdata(file);
1554        struct v4l2_fh *fh = priv;
1555        unsigned long flags;
1556        unsigned int i;
1557        v4l2_std_id fixup;
1558
1559        if (is_empress(file) && dev->overlay_owner) {
1560                /* Don't change the std from the mpeg device
1561                   if overlay is active. */
1562                return -EBUSY;
1563        }
1564
1565        for (i = 0; i < TVNORMS; i++)
1566                if (id == tvnorms[i].id)
1567                        break;
1568
1569        if (i == TVNORMS)
1570                for (i = 0; i < TVNORMS; i++)
1571                        if (id & tvnorms[i].id)
1572                                break;
1573        if (i == TVNORMS)
1574                return -EINVAL;
1575
1576        if ((id & V4L2_STD_SECAM) && (secam[0] != '-')) {
1577                if (secam[0] == 'L' || secam[0] == 'l') {
1578                        if (secam[1] == 'C' || secam[1] == 'c')
1579                                fixup = V4L2_STD_SECAM_LC;
1580                        else
1581                                fixup = V4L2_STD_SECAM_L;
1582                } else {
1583                        if (secam[0] == 'D' || secam[0] == 'd')
1584                                fixup = V4L2_STD_SECAM_DK;
1585                        else
1586                                fixup = V4L2_STD_SECAM;
1587                }
1588                for (i = 0; i < TVNORMS; i++) {
1589                        if (fixup == tvnorms[i].id)
1590                                break;
1591                }
1592                if (i == TVNORMS)
1593                        return -EINVAL;
1594        }
1595
1596        id = tvnorms[i].id;
1597
1598        if (!is_empress(file) && fh == dev->overlay_owner) {
1599                spin_lock_irqsave(&dev->slock, flags);
1600                stop_preview(dev);
1601                spin_unlock_irqrestore(&dev->slock, flags);
1602
1603                set_tvnorm(dev, &tvnorms[i]);
1604
1605                spin_lock_irqsave(&dev->slock, flags);
1606                start_preview(dev);
1607                spin_unlock_irqrestore(&dev->slock, flags);
1608        } else
1609                set_tvnorm(dev, &tvnorms[i]);
1610
1611        saa7134_tvaudio_do_scan(dev);
1612        return 0;
1613}
1614EXPORT_SYMBOL_GPL(saa7134_s_std);
1615
1616int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id)
1617{
1618        struct saa7134_dev *dev = video_drvdata(file);
1619
1620        *id = dev->tvnorm->id;
1621        return 0;
1622}
1623EXPORT_SYMBOL_GPL(saa7134_g_std);
1624
1625static v4l2_std_id saa7134_read_std(struct saa7134_dev *dev)
1626{
1627        static v4l2_std_id stds[] = {
1628                V4L2_STD_UNKNOWN,
1629                V4L2_STD_NTSC,
1630                V4L2_STD_PAL,
1631                V4L2_STD_SECAM };
1632
1633        v4l2_std_id result = 0;
1634
1635        u8 st1 = saa_readb(SAA7134_STATUS_VIDEO1);
1636        u8 st2 = saa_readb(SAA7134_STATUS_VIDEO2);
1637
1638        if (!(st2 & 0x1)) /* RDCAP == 0 */
1639                result = V4L2_STD_UNKNOWN;
1640        else
1641                result = stds[st1 & 0x03];
1642
1643        return result;
1644}
1645
1646int saa7134_querystd(struct file *file, void *priv, v4l2_std_id *std)
1647{
1648        struct saa7134_dev *dev = video_drvdata(file);
1649        *std &= saa7134_read_std(dev);
1650        return 0;
1651}
1652EXPORT_SYMBOL_GPL(saa7134_querystd);
1653
1654static int saa7134_cropcap(struct file *file, void *priv,
1655                                        struct v4l2_cropcap *cap)
1656{
1657        struct saa7134_dev *dev = video_drvdata(file);
1658
1659        if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1660            cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1661                return -EINVAL;
1662        cap->pixelaspect.numerator   = 1;
1663        cap->pixelaspect.denominator = 1;
1664        if (dev->tvnorm->id & V4L2_STD_525_60) {
1665                cap->pixelaspect.numerator   = 11;
1666                cap->pixelaspect.denominator = 10;
1667        }
1668        if (dev->tvnorm->id & V4L2_STD_625_50) {
1669                cap->pixelaspect.numerator   = 54;
1670                cap->pixelaspect.denominator = 59;
1671        }
1672        return 0;
1673}
1674
1675static int saa7134_g_selection(struct file *file, void *f, struct v4l2_selection *sel)
1676{
1677        struct saa7134_dev *dev = video_drvdata(file);
1678
1679        if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1680            sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1681                return -EINVAL;
1682
1683        switch (sel->target) {
1684        case V4L2_SEL_TGT_CROP:
1685                sel->r = dev->crop_current;
1686                break;
1687        case V4L2_SEL_TGT_CROP_DEFAULT:
1688                sel->r = dev->crop_defrect;
1689                break;
1690        case V4L2_SEL_TGT_CROP_BOUNDS:
1691                sel->r  = dev->crop_bounds;
1692                break;
1693        default:
1694                return -EINVAL;
1695        }
1696        return 0;
1697}
1698
1699static int saa7134_s_selection(struct file *file, void *f, struct v4l2_selection *sel)
1700{
1701        struct saa7134_dev *dev = video_drvdata(file);
1702        struct v4l2_rect *b = &dev->crop_bounds;
1703        struct v4l2_rect *c = &dev->crop_current;
1704
1705        if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1706            sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1707                return -EINVAL;
1708
1709        if (sel->target != V4L2_SEL_TGT_CROP)
1710                return -EINVAL;
1711
1712        if (dev->overlay_owner)
1713                return -EBUSY;
1714        if (vb2_is_streaming(&dev->video_vbq))
1715                return -EBUSY;
1716
1717        *c = sel->r;
1718        if (c->top < b->top)
1719                c->top = b->top;
1720        if (c->top > b->top + b->height)
1721                c->top = b->top + b->height;
1722        if (c->height > b->top - c->top + b->height)
1723                c->height = b->top - c->top + b->height;
1724
1725        if (c->left < b->left)
1726                c->left = b->left;
1727        if (c->left > b->left + b->width)
1728                c->left = b->left + b->width;
1729        if (c->width > b->left - c->left + b->width)
1730                c->width = b->left - c->left + b->width;
1731        sel->r = *c;
1732        return 0;
1733}
1734
1735int saa7134_g_tuner(struct file *file, void *priv,
1736                                        struct v4l2_tuner *t)
1737{
1738        struct saa7134_dev *dev = video_drvdata(file);
1739        int n;
1740
1741        if (0 != t->index)
1742                return -EINVAL;
1743        memset(t, 0, sizeof(*t));
1744        for (n = 0; n < SAA7134_INPUT_MAX; n++) {
1745                if (card_in(dev, n).type == SAA7134_INPUT_TV ||
1746                    card_in(dev, n).type == SAA7134_INPUT_TV_MONO)
1747                        break;
1748        }
1749        if (n == SAA7134_INPUT_MAX)
1750                return -EINVAL;
1751        if (card_in(dev, n).type != SAA7134_NO_INPUT) {
1752                strcpy(t->name, "Television");
1753                t->type = V4L2_TUNER_ANALOG_TV;
1754                saa_call_all(dev, tuner, g_tuner, t);
1755                t->capability = V4L2_TUNER_CAP_NORM |
1756                        V4L2_TUNER_CAP_STEREO |
1757                        V4L2_TUNER_CAP_LANG1 |
1758                        V4L2_TUNER_CAP_LANG2;
1759                t->rxsubchans = saa7134_tvaudio_getstereo(dev);
1760                t->audmode = saa7134_tvaudio_rx2mode(t->rxsubchans);
1761        }
1762        if (0 != (saa_readb(SAA7134_STATUS_VIDEO1) & 0x03))
1763                t->signal = 0xffff;
1764        return 0;
1765}
1766EXPORT_SYMBOL_GPL(saa7134_g_tuner);
1767
1768int saa7134_s_tuner(struct file *file, void *priv,
1769                                        const struct v4l2_tuner *t)
1770{
1771        struct saa7134_dev *dev = video_drvdata(file);
1772        int rx, mode;
1773
1774        if (0 != t->index)
1775                return -EINVAL;
1776
1777        mode = dev->thread.mode;
1778        if (UNSET == mode) {
1779                rx   = saa7134_tvaudio_getstereo(dev);
1780                mode = saa7134_tvaudio_rx2mode(rx);
1781        }
1782        if (mode != t->audmode)
1783                dev->thread.mode = t->audmode;
1784
1785        return 0;
1786}
1787EXPORT_SYMBOL_GPL(saa7134_s_tuner);
1788
1789int saa7134_g_frequency(struct file *file, void *priv,
1790                                        struct v4l2_frequency *f)
1791{
1792        struct saa7134_dev *dev = video_drvdata(file);
1793
1794        if (0 != f->tuner)
1795                return -EINVAL;
1796
1797        saa_call_all(dev, tuner, g_frequency, f);
1798
1799        return 0;
1800}
1801EXPORT_SYMBOL_GPL(saa7134_g_frequency);
1802
1803int saa7134_s_frequency(struct file *file, void *priv,
1804                                        const struct v4l2_frequency *f)
1805{
1806        struct saa7134_dev *dev = video_drvdata(file);
1807
1808        if (0 != f->tuner)
1809                return -EINVAL;
1810
1811        saa_call_all(dev, tuner, s_frequency, f);
1812
1813        saa7134_tvaudio_do_scan(dev);
1814        return 0;
1815}
1816EXPORT_SYMBOL_GPL(saa7134_s_frequency);
1817
1818static int saa7134_enum_fmt_vid_cap(struct file *file, void  *priv,
1819                                        struct v4l2_fmtdesc *f)
1820{
1821        if (f->index >= FORMATS)
1822                return -EINVAL;
1823
1824        strlcpy(f->description, formats[f->index].name,
1825                sizeof(f->description));
1826
1827        f->pixelformat = formats[f->index].fourcc;
1828
1829        return 0;
1830}
1831
1832static int saa7134_enum_fmt_vid_overlay(struct file *file, void  *priv,
1833                                        struct v4l2_fmtdesc *f)
1834{
1835        if (saa7134_no_overlay > 0) {
1836                pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1837                return -EINVAL;
1838        }
1839
1840        if ((f->index >= FORMATS) || formats[f->index].planar)
1841                return -EINVAL;
1842
1843        strlcpy(f->description, formats[f->index].name,
1844                sizeof(f->description));
1845
1846        f->pixelformat = formats[f->index].fourcc;
1847
1848        return 0;
1849}
1850
1851static int saa7134_g_fbuf(struct file *file, void *f,
1852                                struct v4l2_framebuffer *fb)
1853{
1854        struct saa7134_dev *dev = video_drvdata(file);
1855
1856        *fb = dev->ovbuf;
1857        fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
1858
1859        return 0;
1860}
1861
1862static int saa7134_s_fbuf(struct file *file, void *f,
1863                                        const struct v4l2_framebuffer *fb)
1864{
1865        struct saa7134_dev *dev = video_drvdata(file);
1866        struct saa7134_format *fmt;
1867
1868        if (!capable(CAP_SYS_ADMIN) &&
1869           !capable(CAP_SYS_RAWIO))
1870                return -EPERM;
1871
1872        /* check args */
1873        fmt = format_by_fourcc(fb->fmt.pixelformat);
1874        if (NULL == fmt)
1875                return -EINVAL;
1876
1877        /* ok, accept it */
1878        dev->ovbuf = *fb;
1879        dev->ovfmt = fmt;
1880        if (0 == dev->ovbuf.fmt.bytesperline)
1881                dev->ovbuf.fmt.bytesperline =
1882                        dev->ovbuf.fmt.width*fmt->depth/8;
1883        return 0;
1884}
1885
1886static int saa7134_overlay(struct file *file, void *priv, unsigned int on)
1887{
1888        struct saa7134_dev *dev = video_drvdata(file);
1889        unsigned long flags;
1890
1891        if (on) {
1892                if (saa7134_no_overlay > 0) {
1893                        video_dbg("no_overlay\n");
1894                        return -EINVAL;
1895                }
1896
1897                if (dev->overlay_owner && priv != dev->overlay_owner)
1898                        return -EBUSY;
1899                dev->overlay_owner = priv;
1900                spin_lock_irqsave(&dev->slock, flags);
1901                start_preview(dev);
1902                spin_unlock_irqrestore(&dev->slock, flags);
1903        }
1904        if (!on) {
1905                if (priv != dev->overlay_owner)
1906                        return -EINVAL;
1907                spin_lock_irqsave(&dev->slock, flags);
1908                stop_preview(dev);
1909                spin_unlock_irqrestore(&dev->slock, flags);
1910                dev->overlay_owner = NULL;
1911        }
1912        return 0;
1913}
1914
1915#ifdef CONFIG_VIDEO_ADV_DEBUG
1916static int vidioc_g_register (struct file *file, void *priv,
1917                              struct v4l2_dbg_register *reg)
1918{
1919        struct saa7134_dev *dev = video_drvdata(file);
1920
1921        reg->val = saa_readb(reg->reg & 0xffffff);
1922        reg->size = 1;
1923        return 0;
1924}
1925
1926static int vidioc_s_register (struct file *file, void *priv,
1927                                const struct v4l2_dbg_register *reg)
1928{
1929        struct saa7134_dev *dev = video_drvdata(file);
1930
1931        saa_writeb(reg->reg & 0xffffff, reg->val);
1932        return 0;
1933}
1934#endif
1935
1936static int radio_g_tuner(struct file *file, void *priv,
1937                                        struct v4l2_tuner *t)
1938{
1939        struct saa7134_dev *dev = video_drvdata(file);
1940
1941        if (0 != t->index)
1942                return -EINVAL;
1943
1944        strcpy(t->name, "Radio");
1945
1946        saa_call_all(dev, tuner, g_tuner, t);
1947        t->audmode &= V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO;
1948        if (dev->input->amux == TV) {
1949                t->signal = 0xf800 - ((saa_readb(0x581) & 0x1f) << 11);
1950                t->rxsubchans = (saa_readb(0x529) & 0x08) ?
1951                                V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
1952        }
1953        return 0;
1954}
1955static int radio_s_tuner(struct file *file, void *priv,
1956                                        const struct v4l2_tuner *t)
1957{
1958        struct saa7134_dev *dev = video_drvdata(file);
1959
1960        if (0 != t->index)
1961                return -EINVAL;
1962
1963        saa_call_all(dev, tuner, s_tuner, t);
1964        return 0;
1965}
1966
1967static const struct v4l2_file_operations video_fops =
1968{
1969        .owner    = THIS_MODULE,
1970        .open     = video_open,
1971        .release  = video_release,
1972        .read     = vb2_fop_read,
1973        .poll     = vb2_fop_poll,
1974        .mmap     = vb2_fop_mmap,
1975        .unlocked_ioctl   = video_ioctl2,
1976};
1977
1978static const struct v4l2_ioctl_ops video_ioctl_ops = {
1979        .vidioc_querycap                = saa7134_querycap,
1980        .vidioc_enum_fmt_vid_cap        = saa7134_enum_fmt_vid_cap,
1981        .vidioc_g_fmt_vid_cap           = saa7134_g_fmt_vid_cap,
1982        .vidioc_try_fmt_vid_cap         = saa7134_try_fmt_vid_cap,
1983        .vidioc_s_fmt_vid_cap           = saa7134_s_fmt_vid_cap,
1984        .vidioc_enum_fmt_vid_overlay    = saa7134_enum_fmt_vid_overlay,
1985        .vidioc_g_fmt_vid_overlay       = saa7134_g_fmt_vid_overlay,
1986        .vidioc_try_fmt_vid_overlay     = saa7134_try_fmt_vid_overlay,
1987        .vidioc_s_fmt_vid_overlay       = saa7134_s_fmt_vid_overlay,
1988        .vidioc_g_fmt_vbi_cap           = saa7134_try_get_set_fmt_vbi_cap,
1989        .vidioc_try_fmt_vbi_cap         = saa7134_try_get_set_fmt_vbi_cap,
1990        .vidioc_s_fmt_vbi_cap           = saa7134_try_get_set_fmt_vbi_cap,
1991        .vidioc_cropcap                 = saa7134_cropcap,
1992        .vidioc_reqbufs                 = vb2_ioctl_reqbufs,
1993        .vidioc_querybuf                = vb2_ioctl_querybuf,
1994        .vidioc_qbuf                    = vb2_ioctl_qbuf,
1995        .vidioc_dqbuf                   = vb2_ioctl_dqbuf,
1996        .vidioc_expbuf                  = vb2_ioctl_expbuf,
1997        .vidioc_s_std                   = saa7134_s_std,
1998        .vidioc_g_std                   = saa7134_g_std,
1999        .vidioc_querystd                = saa7134_querystd,
2000        .vidioc_enum_input              = saa7134_enum_input,
2001        .vidioc_g_input                 = saa7134_g_input,
2002        .vidioc_s_input                 = saa7134_s_input,
2003        .vidioc_streamon                = vb2_ioctl_streamon,
2004        .vidioc_streamoff               = vb2_ioctl_streamoff,
2005        .vidioc_g_tuner                 = saa7134_g_tuner,
2006        .vidioc_s_tuner                 = saa7134_s_tuner,
2007        .vidioc_g_selection             = saa7134_g_selection,
2008        .vidioc_s_selection             = saa7134_s_selection,
2009        .vidioc_g_fbuf                  = saa7134_g_fbuf,
2010        .vidioc_s_fbuf                  = saa7134_s_fbuf,
2011        .vidioc_overlay                 = saa7134_overlay,
2012        .vidioc_g_frequency             = saa7134_g_frequency,
2013        .vidioc_s_frequency             = saa7134_s_frequency,
2014#ifdef CONFIG_VIDEO_ADV_DEBUG
2015        .vidioc_g_register              = vidioc_g_register,
2016        .vidioc_s_register              = vidioc_s_register,
2017#endif
2018        .vidioc_log_status              = v4l2_ctrl_log_status,
2019        .vidioc_subscribe_event         = v4l2_ctrl_subscribe_event,
2020        .vidioc_unsubscribe_event       = v4l2_event_unsubscribe,
2021};
2022
2023static const struct v4l2_file_operations radio_fops = {
2024        .owner    = THIS_MODULE,
2025        .open     = video_open,
2026        .read     = radio_read,
2027        .release  = video_release,
2028        .unlocked_ioctl = video_ioctl2,
2029        .poll     = radio_poll,
2030};
2031
2032static const struct v4l2_ioctl_ops radio_ioctl_ops = {
2033        .vidioc_querycap        = saa7134_querycap,
2034        .vidioc_g_tuner         = radio_g_tuner,
2035        .vidioc_s_tuner         = radio_s_tuner,
2036        .vidioc_g_frequency     = saa7134_g_frequency,
2037        .vidioc_s_frequency     = saa7134_s_frequency,
2038        .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
2039        .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
2040};
2041
2042/* ----------------------------------------------------------- */
2043/* exported stuff                                              */
2044
2045struct video_device saa7134_video_template = {
2046        .name                           = "saa7134-video",
2047        .fops                           = &video_fops,
2048        .ioctl_ops                      = &video_ioctl_ops,
2049        .tvnorms                        = SAA7134_NORMS,
2050};
2051
2052struct video_device saa7134_radio_template = {
2053        .name                   = "saa7134-radio",
2054        .fops                   = &radio_fops,
2055        .ioctl_ops              = &radio_ioctl_ops,
2056};
2057
2058static const struct v4l2_ctrl_ops saa7134_ctrl_ops = {
2059        .s_ctrl = saa7134_s_ctrl,
2060};
2061
2062static const struct v4l2_ctrl_config saa7134_ctrl_invert = {
2063        .ops = &saa7134_ctrl_ops,
2064        .id = V4L2_CID_PRIVATE_INVERT,
2065        .name = "Invert",
2066        .type = V4L2_CTRL_TYPE_BOOLEAN,
2067        .min = 0,
2068        .max = 1,
2069        .step = 1,
2070};
2071
2072static const struct v4l2_ctrl_config saa7134_ctrl_y_odd = {
2073        .ops = &saa7134_ctrl_ops,
2074        .id = V4L2_CID_PRIVATE_Y_ODD,
2075        .name = "Y Offset Odd Field",
2076        .type = V4L2_CTRL_TYPE_INTEGER,
2077        .min = 0,
2078        .max = 128,
2079        .step = 1,
2080};
2081
2082static const struct v4l2_ctrl_config saa7134_ctrl_y_even = {
2083        .ops = &saa7134_ctrl_ops,
2084        .id = V4L2_CID_PRIVATE_Y_EVEN,
2085        .name = "Y Offset Even Field",
2086        .type = V4L2_CTRL_TYPE_INTEGER,
2087        .min = 0,
2088        .max = 128,
2089        .step = 1,
2090};
2091
2092static const struct v4l2_ctrl_config saa7134_ctrl_automute = {
2093        .ops = &saa7134_ctrl_ops,
2094        .id = V4L2_CID_PRIVATE_AUTOMUTE,
2095        .name = "Automute",
2096        .type = V4L2_CTRL_TYPE_BOOLEAN,
2097        .min = 0,
2098        .max = 1,
2099        .step = 1,
2100        .def = 1,
2101};
2102
2103int saa7134_video_init1(struct saa7134_dev *dev)
2104{
2105        struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler;
2106        struct vb2_queue *q;
2107        int ret;
2108
2109        /* sanitycheck insmod options */
2110        if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
2111                gbuffers = 2;
2112        if (gbufsize > gbufsize_max)
2113                gbufsize = gbufsize_max;
2114        gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
2115
2116        v4l2_ctrl_handler_init(hdl, 11);
2117        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2118                        V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
2119        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2120                        V4L2_CID_CONTRAST, 0, 127, 1, 68);
2121        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2122                        V4L2_CID_SATURATION, 0, 127, 1, 64);
2123        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2124                        V4L2_CID_HUE, -128, 127, 1, 0);
2125        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2126                        V4L2_CID_HFLIP, 0, 1, 1, 0);
2127        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2128                        V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
2129        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2130                        V4L2_CID_AUDIO_VOLUME, -15, 15, 1, 0);
2131        v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_invert, NULL);
2132        v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_odd, NULL);
2133        v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_even, NULL);
2134        v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_automute, NULL);
2135        if (hdl->error)
2136                return hdl->error;
2137        if (card_has_radio(dev)) {
2138                hdl = &dev->radio_ctrl_handler;
2139                v4l2_ctrl_handler_init(hdl, 2);
2140                v4l2_ctrl_add_handler(hdl, &dev->ctrl_handler,
2141                                v4l2_ctrl_radio_filter);
2142                if (hdl->error)
2143                        return hdl->error;
2144        }
2145        dev->ctl_mute       = 1;
2146
2147        if (dev->tda9887_conf && saa7134_ctrl_automute.def)
2148                dev->tda9887_conf |= TDA9887_AUTOMUTE;
2149        dev->automute       = 0;
2150
2151        INIT_LIST_HEAD(&dev->video_q.queue);
2152        init_timer(&dev->video_q.timeout);
2153        dev->video_q.timeout.function = saa7134_buffer_timeout;
2154        dev->video_q.timeout.data     = (unsigned long)(&dev->video_q);
2155        dev->video_q.dev              = dev;
2156        dev->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
2157        dev->width    = 720;
2158        dev->height   = 576;
2159        dev->field = V4L2_FIELD_INTERLACED;
2160        dev->win.w.width = dev->width;
2161        dev->win.w.height = dev->height;
2162        dev->win.field = V4L2_FIELD_INTERLACED;
2163        dev->ovbuf.fmt.width = dev->width;
2164        dev->ovbuf.fmt.height = dev->height;
2165        dev->ovbuf.fmt.pixelformat = dev->fmt->fourcc;
2166        dev->ovbuf.fmt.colorspace = V4L2_COLORSPACE_SMPTE170M;
2167
2168        if (saa7134_boards[dev->board].video_out)
2169                saa7134_videoport_init(dev);
2170
2171        q = &dev->video_vbq;
2172        q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2173        /*
2174         * Do not add VB2_USERPTR unless explicitly requested: the saa7134 DMA
2175         * engine cannot handle transfers that do not start at the beginning
2176         * of a page. A user-provided pointer can start anywhere in a page, so
2177         * USERPTR support is a no-go unless the application knows about these
2178         * limitations and has special support for this.
2179         */
2180        q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
2181        if (saa7134_userptr)
2182                q->io_modes |= VB2_USERPTR;
2183        q->drv_priv = &dev->video_q;
2184        q->ops = &vb2_qops;
2185        q->gfp_flags = GFP_DMA32;
2186        q->mem_ops = &vb2_dma_sg_memops;
2187        q->buf_struct_size = sizeof(struct saa7134_buf);
2188        q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2189        q->lock = &dev->lock;
2190        q->dev = &dev->pci->dev;
2191        ret = vb2_queue_init(q);
2192        if (ret)
2193                return ret;
2194        saa7134_pgtable_alloc(dev->pci, &dev->video_q.pt);
2195
2196        q = &dev->vbi_vbq;
2197        q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
2198        /* Don't add VB2_USERPTR, see comment above */
2199        q->io_modes = VB2_MMAP | VB2_READ;
2200        if (saa7134_userptr)
2201                q->io_modes |= VB2_USERPTR;
2202        q->drv_priv = &dev->vbi_q;
2203        q->ops = &saa7134_vbi_qops;
2204        q->gfp_flags = GFP_DMA32;
2205        q->mem_ops = &vb2_dma_sg_memops;
2206        q->buf_struct_size = sizeof(struct saa7134_buf);
2207        q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2208        q->lock = &dev->lock;
2209        q->dev = &dev->pci->dev;
2210        ret = vb2_queue_init(q);
2211        if (ret)
2212                return ret;
2213        saa7134_pgtable_alloc(dev->pci, &dev->vbi_q.pt);
2214
2215        return 0;
2216}
2217
2218void saa7134_video_fini(struct saa7134_dev *dev)
2219{
2220        /* free stuff */
2221        vb2_queue_release(&dev->video_vbq);
2222        saa7134_pgtable_free(dev->pci, &dev->video_q.pt);
2223        vb2_queue_release(&dev->vbi_vbq);
2224        saa7134_pgtable_free(dev->pci, &dev->vbi_q.pt);
2225        v4l2_ctrl_handler_free(&dev->ctrl_handler);
2226        if (card_has_radio(dev))
2227                v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
2228}
2229
2230int saa7134_videoport_init(struct saa7134_dev *dev)
2231{
2232        /* enable video output */
2233        int vo = saa7134_boards[dev->board].video_out;
2234        int video_reg;
2235        unsigned int vid_port_opts = saa7134_boards[dev->board].vid_port_opts;
2236
2237        /* Configure videoport */
2238        saa_writeb(SAA7134_VIDEO_PORT_CTRL0, video_out[vo][0]);
2239        video_reg = video_out[vo][1];
2240        if (vid_port_opts & SET_T_CODE_POLARITY_NON_INVERTED)
2241                video_reg &= ~VP_T_CODE_P_INVERTED;
2242        saa_writeb(SAA7134_VIDEO_PORT_CTRL1, video_reg);
2243        saa_writeb(SAA7134_VIDEO_PORT_CTRL2, video_out[vo][2]);
2244        saa_writeb(SAA7134_VIDEO_PORT_CTRL4, video_out[vo][4]);
2245        video_reg = video_out[vo][5];
2246        if (vid_port_opts & SET_CLOCK_NOT_DELAYED)
2247                video_reg &= ~VP_CLK_CTRL2_DELAYED;
2248        if (vid_port_opts & SET_CLOCK_INVERTED)
2249                video_reg |= VP_CLK_CTRL1_INVERTED;
2250        saa_writeb(SAA7134_VIDEO_PORT_CTRL5, video_reg);
2251        video_reg = video_out[vo][6];
2252        if (vid_port_opts & SET_VSYNC_OFF) {
2253                video_reg &= ~VP_VS_TYPE_MASK;
2254                video_reg |= VP_VS_TYPE_OFF;
2255        }
2256        saa_writeb(SAA7134_VIDEO_PORT_CTRL6, video_reg);
2257        saa_writeb(SAA7134_VIDEO_PORT_CTRL7, video_out[vo][7]);
2258        saa_writeb(SAA7134_VIDEO_PORT_CTRL8, video_out[vo][8]);
2259
2260        /* Start videoport */
2261        saa_writeb(SAA7134_VIDEO_PORT_CTRL3, video_out[vo][3]);
2262
2263        return 0;
2264}
2265
2266int saa7134_video_init2(struct saa7134_dev *dev)
2267{
2268        /* init video hw */
2269        set_tvnorm(dev,&tvnorms[0]);
2270        video_mux(dev,0);
2271        v4l2_ctrl_handler_setup(&dev->ctrl_handler);
2272        saa7134_tvaudio_setmute(dev);
2273        saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
2274        return 0;
2275}
2276
2277void saa7134_irq_video_signalchange(struct saa7134_dev *dev)
2278{
2279        static const char *st[] = {
2280                "(no signal)", "NTSC", "PAL", "SECAM" };
2281        u32 st1,st2;
2282
2283        st1 = saa_readb(SAA7134_STATUS_VIDEO1);
2284        st2 = saa_readb(SAA7134_STATUS_VIDEO2);
2285        video_dbg("DCSDT: pll: %s, sync: %s, norm: %s\n",
2286                (st1 & 0x40) ? "not locked" : "locked",
2287                (st2 & 0x40) ? "no"         : "yes",
2288                st[st1 & 0x03]);
2289        dev->nosignal = (st1 & 0x40) || (st2 & 0x40)  || !(st2 & 0x1);
2290
2291        if (dev->nosignal) {
2292                /* no video signal -> mute audio */
2293                if (dev->ctl_automute)
2294                        dev->automute = 1;
2295                saa7134_tvaudio_setmute(dev);
2296        } else {
2297                /* wake up tvaudio audio carrier scan thread */
2298                saa7134_tvaudio_do_scan(dev);
2299        }
2300
2301        if ((st2 & 0x80) && !noninterlaced && !dev->nosignal)
2302                saa_clearb(SAA7134_SYNC_CTRL, 0x20);
2303        else
2304                saa_setb(SAA7134_SYNC_CTRL, 0x20);
2305
2306        if (dev->mops && dev->mops->signal_change)
2307                dev->mops->signal_change(dev);
2308}
2309
2310
2311void saa7134_irq_video_done(struct saa7134_dev *dev, unsigned long status)
2312{
2313        enum v4l2_field field;
2314
2315        spin_lock(&dev->slock);
2316        if (dev->video_q.curr) {
2317                field = dev->field;
2318                if (V4L2_FIELD_HAS_BOTH(field)) {
2319                        /* make sure we have seen both fields */
2320                        if ((status & 0x10) == 0x00) {
2321                                dev->video_q.curr->top_seen = 1;
2322                                goto done;
2323                        }
2324                        if (!dev->video_q.curr->top_seen)
2325                                goto done;
2326                } else if (field == V4L2_FIELD_TOP) {
2327                        if ((status & 0x10) != 0x10)
2328                                goto done;
2329                } else if (field == V4L2_FIELD_BOTTOM) {
2330                        if ((status & 0x10) != 0x00)
2331                                goto done;
2332                }
2333                saa7134_buffer_finish(dev, &dev->video_q, VB2_BUF_STATE_DONE);
2334        }
2335        saa7134_buffer_next(dev, &dev->video_q);
2336
2337 done:
2338        spin_unlock(&dev->slock);
2339}
2340