linux/drivers/media/pci/saa7134/saa7134-video.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *
   4 * device driver for philips saa7134 based TV cards
   5 * video4linux video interface
   6 *
   7 * (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
   8 */
   9
  10#include "saa7134.h"
  11#include "saa7134-reg.h"
  12
  13#include <linux/init.h>
  14#include <linux/list.h>
  15#include <linux/module.h>
  16#include <linux/kernel.h>
  17#include <linux/slab.h>
  18#include <linux/sort.h>
  19
  20#include <media/v4l2-common.h>
  21#include <media/v4l2-event.h>
  22#include <media/i2c/saa6588.h>
  23
  24/* ------------------------------------------------------------------ */
  25
  26unsigned int video_debug;
  27static unsigned int gbuffers      = 8;
  28static unsigned int noninterlaced; /* 0 */
  29static unsigned int gbufsize      = 720*576*4;
  30static unsigned int gbufsize_max  = 720*576*4;
  31static char secam[] = "--";
  32module_param(video_debug, int, 0644);
  33MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
  34module_param(gbuffers, int, 0444);
  35MODULE_PARM_DESC(gbuffers,"number of capture buffers, range 2-32");
  36module_param(noninterlaced, int, 0644);
  37MODULE_PARM_DESC(noninterlaced,"capture non interlaced video");
  38module_param_string(secam, secam, sizeof(secam), 0644);
  39MODULE_PARM_DESC(secam, "force SECAM variant, either DK,L or Lc");
  40
  41
  42#define video_dbg(fmt, arg...) do { \
  43        if (video_debug & 0x04) \
  44                printk(KERN_DEBUG pr_fmt("video: " fmt), ## arg); \
  45        } while (0)
  46
  47/* ------------------------------------------------------------------ */
  48/* Defines for Video Output Port Register at address 0x191            */
  49
  50/* Bit 0: VIP code T bit polarity */
  51
  52#define VP_T_CODE_P_NON_INVERTED        0x00
  53#define VP_T_CODE_P_INVERTED            0x01
  54
  55/* ------------------------------------------------------------------ */
  56/* Defines for Video Output Port Register at address 0x195            */
  57
  58/* Bit 2: Video output clock delay control */
  59
  60#define VP_CLK_CTRL2_NOT_DELAYED        0x00
  61#define VP_CLK_CTRL2_DELAYED            0x04
  62
  63/* Bit 1: Video output clock invert control */
  64
  65#define VP_CLK_CTRL1_NON_INVERTED       0x00
  66#define VP_CLK_CTRL1_INVERTED           0x02
  67
  68/* ------------------------------------------------------------------ */
  69/* Defines for Video Output Port Register at address 0x196            */
  70
  71/* Bits 2 to 0: VSYNC pin video vertical sync type */
  72
  73#define VP_VS_TYPE_MASK                 0x07
  74
  75#define VP_VS_TYPE_OFF                  0x00
  76#define VP_VS_TYPE_V123                 0x01
  77#define VP_VS_TYPE_V_ITU                0x02
  78#define VP_VS_TYPE_VGATE_L              0x03
  79#define VP_VS_TYPE_RESERVED1            0x04
  80#define VP_VS_TYPE_RESERVED2            0x05
  81#define VP_VS_TYPE_F_ITU                0x06
  82#define VP_VS_TYPE_SC_FID               0x07
  83
  84/* ------------------------------------------------------------------ */
  85/* data structs for video                                             */
  86
  87static int video_out[][9] = {
  88        [CCIR656] = { 0x00, 0xb1, 0x00, 0xa1, 0x00, 0x04, 0x06, 0x00, 0x00 },
  89};
  90
  91static struct saa7134_format formats[] = {
  92        {
  93                .name     = "8 bpp gray",
  94                .fourcc   = V4L2_PIX_FMT_GREY,
  95                .depth    = 8,
  96                .pm       = 0x06,
  97        },{
  98                .name     = "15 bpp RGB, le",
  99                .fourcc   = V4L2_PIX_FMT_RGB555,
 100                .depth    = 16,
 101                .pm       = 0x13 | 0x80,
 102        },{
 103                .name     = "15 bpp RGB, be",
 104                .fourcc   = V4L2_PIX_FMT_RGB555X,
 105                .depth    = 16,
 106                .pm       = 0x13 | 0x80,
 107                .bswap    = 1,
 108        },{
 109                .name     = "16 bpp RGB, le",
 110                .fourcc   = V4L2_PIX_FMT_RGB565,
 111                .depth    = 16,
 112                .pm       = 0x10 | 0x80,
 113        },{
 114                .name     = "16 bpp RGB, be",
 115                .fourcc   = V4L2_PIX_FMT_RGB565X,
 116                .depth    = 16,
 117                .pm       = 0x10 | 0x80,
 118                .bswap    = 1,
 119        },{
 120                .name     = "24 bpp RGB, le",
 121                .fourcc   = V4L2_PIX_FMT_BGR24,
 122                .depth    = 24,
 123                .pm       = 0x11,
 124        },{
 125                .name     = "24 bpp RGB, be",
 126                .fourcc   = V4L2_PIX_FMT_RGB24,
 127                .depth    = 24,
 128                .pm       = 0x11,
 129                .bswap    = 1,
 130        },{
 131                .name     = "32 bpp RGB, le",
 132                .fourcc   = V4L2_PIX_FMT_BGR32,
 133                .depth    = 32,
 134                .pm       = 0x12,
 135        },{
 136                .name     = "32 bpp RGB, be",
 137                .fourcc   = V4L2_PIX_FMT_RGB32,
 138                .depth    = 32,
 139                .pm       = 0x12,
 140                .bswap    = 1,
 141                .wswap    = 1,
 142        },{
 143                .name     = "4:2:2 packed, YUYV",
 144                .fourcc   = V4L2_PIX_FMT_YUYV,
 145                .depth    = 16,
 146                .pm       = 0x00,
 147                .bswap    = 1,
 148                .yuv      = 1,
 149        },{
 150                .name     = "4:2:2 packed, UYVY",
 151                .fourcc   = V4L2_PIX_FMT_UYVY,
 152                .depth    = 16,
 153                .pm       = 0x00,
 154                .yuv      = 1,
 155        },{
 156                .name     = "4:2:2 planar, Y-Cb-Cr",
 157                .fourcc   = V4L2_PIX_FMT_YUV422P,
 158                .depth    = 16,
 159                .pm       = 0x09,
 160                .yuv      = 1,
 161                .planar   = 1,
 162                .hshift   = 1,
 163                .vshift   = 0,
 164        },{
 165                .name     = "4:2:0 planar, Y-Cb-Cr",
 166                .fourcc   = V4L2_PIX_FMT_YUV420,
 167                .depth    = 12,
 168                .pm       = 0x0a,
 169                .yuv      = 1,
 170                .planar   = 1,
 171                .hshift   = 1,
 172                .vshift   = 1,
 173        },{
 174                .name     = "4:2:0 planar, Y-Cb-Cr",
 175                .fourcc   = V4L2_PIX_FMT_YVU420,
 176                .depth    = 12,
 177                .pm       = 0x0a,
 178                .yuv      = 1,
 179                .planar   = 1,
 180                .uvswap   = 1,
 181                .hshift   = 1,
 182                .vshift   = 1,
 183        }
 184};
 185#define FORMATS ARRAY_SIZE(formats)
 186
 187#define NORM_625_50                     \
 188                .h_start       = 0,     \
 189                .h_stop        = 719,   \
 190                .video_v_start = 24,    \
 191                .video_v_stop  = 311,   \
 192                .vbi_v_start_0 = 7,     \
 193                .vbi_v_stop_0  = 23,    \
 194                .vbi_v_start_1 = 319,   \
 195                .src_timing    = 4
 196
 197#define NORM_525_60                     \
 198                .h_start       = 0,     \
 199                .h_stop        = 719,   \
 200                .video_v_start = 23,    \
 201                .video_v_stop  = 262,   \
 202                .vbi_v_start_0 = 10,    \
 203                .vbi_v_stop_0  = 21,    \
 204                .vbi_v_start_1 = 273,   \
 205                .src_timing    = 7
 206
 207static struct saa7134_tvnorm tvnorms[] = {
 208        {
 209                .name          = "PAL", /* autodetect */
 210                .id            = V4L2_STD_PAL,
 211                NORM_625_50,
 212
 213                .sync_control  = 0x18,
 214                .luma_control  = 0x40,
 215                .chroma_ctrl1  = 0x81,
 216                .chroma_gain   = 0x2a,
 217                .chroma_ctrl2  = 0x06,
 218                .vgate_misc    = 0x1c,
 219
 220        },{
 221                .name          = "PAL-BG",
 222                .id            = V4L2_STD_PAL_BG,
 223                NORM_625_50,
 224
 225                .sync_control  = 0x18,
 226                .luma_control  = 0x40,
 227                .chroma_ctrl1  = 0x81,
 228                .chroma_gain   = 0x2a,
 229                .chroma_ctrl2  = 0x06,
 230                .vgate_misc    = 0x1c,
 231
 232        },{
 233                .name          = "PAL-I",
 234                .id            = V4L2_STD_PAL_I,
 235                NORM_625_50,
 236
 237                .sync_control  = 0x18,
 238                .luma_control  = 0x40,
 239                .chroma_ctrl1  = 0x81,
 240                .chroma_gain   = 0x2a,
 241                .chroma_ctrl2  = 0x06,
 242                .vgate_misc    = 0x1c,
 243
 244        },{
 245                .name          = "PAL-DK",
 246                .id            = V4L2_STD_PAL_DK,
 247                NORM_625_50,
 248
 249                .sync_control  = 0x18,
 250                .luma_control  = 0x40,
 251                .chroma_ctrl1  = 0x81,
 252                .chroma_gain   = 0x2a,
 253                .chroma_ctrl2  = 0x06,
 254                .vgate_misc    = 0x1c,
 255
 256        },{
 257                .name          = "NTSC",
 258                .id            = V4L2_STD_NTSC,
 259                NORM_525_60,
 260
 261                .sync_control  = 0x59,
 262                .luma_control  = 0x40,
 263                .chroma_ctrl1  = 0x89,
 264                .chroma_gain   = 0x2a,
 265                .chroma_ctrl2  = 0x0e,
 266                .vgate_misc    = 0x18,
 267
 268        },{
 269                .name          = "SECAM",
 270                .id            = V4L2_STD_SECAM,
 271                NORM_625_50,
 272
 273                .sync_control  = 0x18,
 274                .luma_control  = 0x1b,
 275                .chroma_ctrl1  = 0xd1,
 276                .chroma_gain   = 0x80,
 277                .chroma_ctrl2  = 0x00,
 278                .vgate_misc    = 0x1c,
 279
 280        },{
 281                .name          = "SECAM-DK",
 282                .id            = V4L2_STD_SECAM_DK,
 283                NORM_625_50,
 284
 285                .sync_control  = 0x18,
 286                .luma_control  = 0x1b,
 287                .chroma_ctrl1  = 0xd1,
 288                .chroma_gain   = 0x80,
 289                .chroma_ctrl2  = 0x00,
 290                .vgate_misc    = 0x1c,
 291
 292        },{
 293                .name          = "SECAM-L",
 294                .id            = V4L2_STD_SECAM_L,
 295                NORM_625_50,
 296
 297                .sync_control  = 0x18,
 298                .luma_control  = 0x1b,
 299                .chroma_ctrl1  = 0xd1,
 300                .chroma_gain   = 0x80,
 301                .chroma_ctrl2  = 0x00,
 302                .vgate_misc    = 0x1c,
 303
 304        },{
 305                .name          = "SECAM-Lc",
 306                .id            = V4L2_STD_SECAM_LC,
 307                NORM_625_50,
 308
 309                .sync_control  = 0x18,
 310                .luma_control  = 0x1b,
 311                .chroma_ctrl1  = 0xd1,
 312                .chroma_gain   = 0x80,
 313                .chroma_ctrl2  = 0x00,
 314                .vgate_misc    = 0x1c,
 315
 316        },{
 317                .name          = "PAL-M",
 318                .id            = V4L2_STD_PAL_M,
 319                NORM_525_60,
 320
 321                .sync_control  = 0x59,
 322                .luma_control  = 0x40,
 323                .chroma_ctrl1  = 0xb9,
 324                .chroma_gain   = 0x2a,
 325                .chroma_ctrl2  = 0x0e,
 326                .vgate_misc    = 0x18,
 327
 328        },{
 329                .name          = "PAL-Nc",
 330                .id            = V4L2_STD_PAL_Nc,
 331                NORM_625_50,
 332
 333                .sync_control  = 0x18,
 334                .luma_control  = 0x40,
 335                .chroma_ctrl1  = 0xa1,
 336                .chroma_gain   = 0x2a,
 337                .chroma_ctrl2  = 0x06,
 338                .vgate_misc    = 0x1c,
 339
 340        },{
 341                .name          = "PAL-60",
 342                .id            = V4L2_STD_PAL_60,
 343
 344                .h_start       = 0,
 345                .h_stop        = 719,
 346                .video_v_start = 23,
 347                .video_v_stop  = 262,
 348                .vbi_v_start_0 = 10,
 349                .vbi_v_stop_0  = 21,
 350                .vbi_v_start_1 = 273,
 351                .src_timing    = 7,
 352
 353                .sync_control  = 0x18,
 354                .luma_control  = 0x40,
 355                .chroma_ctrl1  = 0x81,
 356                .chroma_gain   = 0x2a,
 357                .chroma_ctrl2  = 0x06,
 358                .vgate_misc    = 0x1c,
 359        }
 360};
 361#define TVNORMS ARRAY_SIZE(tvnorms)
 362
 363static struct saa7134_format* format_by_fourcc(unsigned int fourcc)
 364{
 365        unsigned int i;
 366
 367        for (i = 0; i < FORMATS; i++)
 368                if (formats[i].fourcc == fourcc)
 369                        return formats+i;
 370        return NULL;
 371}
 372
 373/* ------------------------------------------------------------------ */
 374
 375static void set_tvnorm(struct saa7134_dev *dev, struct saa7134_tvnorm *norm)
 376{
 377        video_dbg("set tv norm = %s\n", norm->name);
 378        dev->tvnorm = norm;
 379
 380        /* setup cropping */
 381        dev->crop_bounds.left    = norm->h_start;
 382        dev->crop_defrect.left   = norm->h_start;
 383        dev->crop_bounds.width   = norm->h_stop - norm->h_start +1;
 384        dev->crop_defrect.width  = norm->h_stop - norm->h_start +1;
 385
 386        dev->crop_bounds.top     = (norm->vbi_v_stop_0+1)*2;
 387        dev->crop_defrect.top    = norm->video_v_start*2;
 388        dev->crop_bounds.height  = ((norm->id & V4L2_STD_525_60) ? 524 : 624)
 389                - dev->crop_bounds.top;
 390        dev->crop_defrect.height = (norm->video_v_stop - norm->video_v_start +1)*2;
 391
 392        dev->crop_current = dev->crop_defrect;
 393
 394        saa7134_set_tvnorm_hw(dev);
 395}
 396
 397static void video_mux(struct saa7134_dev *dev, int input)
 398{
 399        video_dbg("video input = %d [%s]\n",
 400                  input, saa7134_input_name[card_in(dev, input).type]);
 401        dev->ctl_input = input;
 402        set_tvnorm(dev, dev->tvnorm);
 403        saa7134_tvaudio_setinput(dev, &card_in(dev, input));
 404}
 405
 406
 407static void saa7134_set_decoder(struct saa7134_dev *dev)
 408{
 409        int luma_control, sync_control, chroma_ctrl1, mux;
 410
 411        struct saa7134_tvnorm *norm = dev->tvnorm;
 412        mux = card_in(dev, dev->ctl_input).vmux;
 413
 414        luma_control = norm->luma_control;
 415        sync_control = norm->sync_control;
 416        chroma_ctrl1 = norm->chroma_ctrl1;
 417
 418        if (mux > 5)
 419                luma_control |= 0x80; /* svideo */
 420        if (noninterlaced || dev->nosignal)
 421                sync_control |= 0x20;
 422
 423        /* switch on auto standard detection */
 424        sync_control |= SAA7134_SYNC_CTRL_AUFD;
 425        chroma_ctrl1 |= SAA7134_CHROMA_CTRL1_AUTO0;
 426        chroma_ctrl1 &= ~SAA7134_CHROMA_CTRL1_FCTC;
 427        luma_control &= ~SAA7134_LUMA_CTRL_LDEL;
 428
 429        /* setup video decoder */
 430        saa_writeb(SAA7134_INCR_DELAY,            0x08);
 431        saa_writeb(SAA7134_ANALOG_IN_CTRL1,       0xc0 | mux);
 432        saa_writeb(SAA7134_ANALOG_IN_CTRL2,       0x00);
 433
 434        saa_writeb(SAA7134_ANALOG_IN_CTRL3,       0x90);
 435        saa_writeb(SAA7134_ANALOG_IN_CTRL4,       0x90);
 436        saa_writeb(SAA7134_HSYNC_START,           0xeb);
 437        saa_writeb(SAA7134_HSYNC_STOP,            0xe0);
 438        saa_writeb(SAA7134_SOURCE_TIMING1,        norm->src_timing);
 439
 440        saa_writeb(SAA7134_SYNC_CTRL,             sync_control);
 441        saa_writeb(SAA7134_LUMA_CTRL,             luma_control);
 442        saa_writeb(SAA7134_DEC_LUMA_BRIGHT,       dev->ctl_bright);
 443
 444        saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
 445                dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
 446
 447        saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
 448                dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
 449
 450        saa_writeb(SAA7134_DEC_CHROMA_HUE,        dev->ctl_hue);
 451        saa_writeb(SAA7134_CHROMA_CTRL1,          chroma_ctrl1);
 452        saa_writeb(SAA7134_CHROMA_GAIN,           norm->chroma_gain);
 453
 454        saa_writeb(SAA7134_CHROMA_CTRL2,          norm->chroma_ctrl2);
 455        saa_writeb(SAA7134_MODE_DELAY_CTRL,       0x00);
 456
 457        saa_writeb(SAA7134_ANALOG_ADC,            0x01);
 458        saa_writeb(SAA7134_VGATE_START,           0x11);
 459        saa_writeb(SAA7134_VGATE_STOP,            0xfe);
 460        saa_writeb(SAA7134_MISC_VGATE_MSB,        norm->vgate_misc);
 461        saa_writeb(SAA7134_RAW_DATA_GAIN,         0x40);
 462        saa_writeb(SAA7134_RAW_DATA_OFFSET,       0x80);
 463}
 464
 465void saa7134_set_tvnorm_hw(struct saa7134_dev *dev)
 466{
 467        saa7134_set_decoder(dev);
 468
 469        saa_call_all(dev, video, s_std, dev->tvnorm->id);
 470        /* Set the correct norm for the saa6752hs. This function
 471           does nothing if there is no saa6752hs. */
 472        saa_call_empress(dev, video, s_std, dev->tvnorm->id);
 473}
 474
 475static void set_h_prescale(struct saa7134_dev *dev, int task, int prescale)
 476{
 477        static const struct {
 478                int xpsc;
 479                int xacl;
 480                int xc2_1;
 481                int xdcg;
 482                int vpfy;
 483        } vals[] = {
 484                /* XPSC XACL XC2_1 XDCG VPFY */
 485                {    1,   0,    0,    0,   0 },
 486                {    2,   2,    1,    2,   2 },
 487                {    3,   4,    1,    3,   2 },
 488                {    4,   8,    1,    4,   2 },
 489                {    5,   8,    1,    4,   2 },
 490                {    6,   8,    1,    4,   3 },
 491                {    7,   8,    1,    4,   3 },
 492                {    8,  15,    0,    4,   3 },
 493                {    9,  15,    0,    4,   3 },
 494                {   10,  16,    1,    5,   3 },
 495        };
 496        static const int count = ARRAY_SIZE(vals);
 497        int i;
 498
 499        for (i = 0; i < count; i++)
 500                if (vals[i].xpsc == prescale)
 501                        break;
 502        if (i == count)
 503                return;
 504
 505        saa_writeb(SAA7134_H_PRESCALE(task), vals[i].xpsc);
 506        saa_writeb(SAA7134_ACC_LENGTH(task), vals[i].xacl);
 507        saa_writeb(SAA7134_LEVEL_CTRL(task),
 508                   (vals[i].xc2_1 << 3) | (vals[i].xdcg));
 509        saa_andorb(SAA7134_FIR_PREFILTER_CTRL(task), 0x0f,
 510                   (vals[i].vpfy << 2) | vals[i].vpfy);
 511}
 512
 513static void set_v_scale(struct saa7134_dev *dev, int task, int yscale)
 514{
 515        int val,mirror;
 516
 517        saa_writeb(SAA7134_V_SCALE_RATIO1(task), yscale &  0xff);
 518        saa_writeb(SAA7134_V_SCALE_RATIO2(task), yscale >> 8);
 519
 520        mirror = (dev->ctl_mirror) ? 0x02 : 0x00;
 521        if (yscale < 2048) {
 522                /* LPI */
 523                video_dbg("yscale LPI yscale=%d\n", yscale);
 524                saa_writeb(SAA7134_V_FILTER(task), 0x00 | mirror);
 525                saa_writeb(SAA7134_LUMA_CONTRAST(task), 0x40);
 526                saa_writeb(SAA7134_CHROMA_SATURATION(task), 0x40);
 527        } else {
 528                /* ACM */
 529                val = 0x40 * 1024 / yscale;
 530                video_dbg("yscale ACM yscale=%d val=0x%x\n", yscale, val);
 531                saa_writeb(SAA7134_V_FILTER(task), 0x01 | mirror);
 532                saa_writeb(SAA7134_LUMA_CONTRAST(task), val);
 533                saa_writeb(SAA7134_CHROMA_SATURATION(task), val);
 534        }
 535        saa_writeb(SAA7134_LUMA_BRIGHT(task),       0x80);
 536}
 537
 538static void set_size(struct saa7134_dev *dev, int task,
 539                     int width, int height, int interlace)
 540{
 541        int prescale,xscale,yscale,y_even,y_odd;
 542        int h_start, h_stop, v_start, v_stop;
 543        int div = interlace ? 2 : 1;
 544
 545        /* setup video scaler */
 546        h_start = dev->crop_current.left;
 547        v_start = dev->crop_current.top/2;
 548        h_stop  = (dev->crop_current.left + dev->crop_current.width -1);
 549        v_stop  = (dev->crop_current.top + dev->crop_current.height -1)/2;
 550
 551        saa_writeb(SAA7134_VIDEO_H_START1(task), h_start &  0xff);
 552        saa_writeb(SAA7134_VIDEO_H_START2(task), h_start >> 8);
 553        saa_writeb(SAA7134_VIDEO_H_STOP1(task),  h_stop  &  0xff);
 554        saa_writeb(SAA7134_VIDEO_H_STOP2(task),  h_stop  >> 8);
 555        saa_writeb(SAA7134_VIDEO_V_START1(task), v_start &  0xff);
 556        saa_writeb(SAA7134_VIDEO_V_START2(task), v_start >> 8);
 557        saa_writeb(SAA7134_VIDEO_V_STOP1(task),  v_stop  &  0xff);
 558        saa_writeb(SAA7134_VIDEO_V_STOP2(task),  v_stop  >> 8);
 559
 560        prescale = dev->crop_current.width / width;
 561        if (0 == prescale)
 562                prescale = 1;
 563        xscale = 1024 * dev->crop_current.width / prescale / width;
 564        yscale = 512 * div * dev->crop_current.height / height;
 565        video_dbg("prescale=%d xscale=%d yscale=%d\n",
 566                  prescale, xscale, yscale);
 567        set_h_prescale(dev,task,prescale);
 568        saa_writeb(SAA7134_H_SCALE_INC1(task),      xscale &  0xff);
 569        saa_writeb(SAA7134_H_SCALE_INC2(task),      xscale >> 8);
 570        set_v_scale(dev,task,yscale);
 571
 572        saa_writeb(SAA7134_VIDEO_PIXELS1(task),     width  & 0xff);
 573        saa_writeb(SAA7134_VIDEO_PIXELS2(task),     width  >> 8);
 574        saa_writeb(SAA7134_VIDEO_LINES1(task),      height/div & 0xff);
 575        saa_writeb(SAA7134_VIDEO_LINES2(task),      height/div >> 8);
 576
 577        /* deinterlace y offsets */
 578        y_odd  = dev->ctl_y_odd;
 579        y_even = dev->ctl_y_even;
 580        saa_writeb(SAA7134_V_PHASE_OFFSET0(task), y_odd);
 581        saa_writeb(SAA7134_V_PHASE_OFFSET1(task), y_even);
 582        saa_writeb(SAA7134_V_PHASE_OFFSET2(task), y_odd);
 583        saa_writeb(SAA7134_V_PHASE_OFFSET3(task), y_even);
 584}
 585
 586/* ------------------------------------------------------------------ */
 587
 588struct cliplist {
 589        __u16 position;
 590        __u8  enable;
 591        __u8  disable;
 592};
 593
 594static void set_cliplist(struct saa7134_dev *dev, int reg,
 595                        struct cliplist *cl, int entries, char *name)
 596{
 597        __u8 winbits = 0;
 598        int i;
 599
 600        for (i = 0; i < entries; i++) {
 601                winbits |= cl[i].enable;
 602                winbits &= ~cl[i].disable;
 603                if (i < 15 && cl[i].position == cl[i+1].position)
 604                        continue;
 605                saa_writeb(reg + 0, winbits);
 606                saa_writeb(reg + 2, cl[i].position & 0xff);
 607                saa_writeb(reg + 3, cl[i].position >> 8);
 608                video_dbg("clip: %s winbits=%02x pos=%d\n",
 609                        name,winbits,cl[i].position);
 610                reg += 8;
 611        }
 612        for (; reg < 0x400; reg += 8) {
 613                saa_writeb(reg+ 0, 0);
 614                saa_writeb(reg + 1, 0);
 615                saa_writeb(reg + 2, 0);
 616                saa_writeb(reg + 3, 0);
 617        }
 618}
 619
 620static int clip_range(int val)
 621{
 622        if (val < 0)
 623                val = 0;
 624        return val;
 625}
 626
 627/* Sort into smallest position first order */
 628static int cliplist_cmp(const void *a, const void *b)
 629{
 630        const struct cliplist *cla = a;
 631        const struct cliplist *clb = b;
 632        if (cla->position < clb->position)
 633                return -1;
 634        if (cla->position > clb->position)
 635                return 1;
 636        return 0;
 637}
 638
 639static int setup_clipping(struct saa7134_dev *dev, struct v4l2_clip *clips,
 640                          int nclips, int interlace)
 641{
 642        struct cliplist col[16], row[16];
 643        int cols = 0, rows = 0, i;
 644        int div = interlace ? 2 : 1;
 645
 646        memset(col, 0, sizeof(col));
 647        memset(row, 0, sizeof(row));
 648        for (i = 0; i < nclips && i < 8; i++) {
 649                col[cols].position = clip_range(clips[i].c.left);
 650                col[cols].enable   = (1 << i);
 651                cols++;
 652                col[cols].position = clip_range(clips[i].c.left+clips[i].c.width);
 653                col[cols].disable  = (1 << i);
 654                cols++;
 655                row[rows].position = clip_range(clips[i].c.top / div);
 656                row[rows].enable   = (1 << i);
 657                rows++;
 658                row[rows].position = clip_range((clips[i].c.top + clips[i].c.height)
 659                                                / div);
 660                row[rows].disable  = (1 << i);
 661                rows++;
 662        }
 663        sort(col, cols, sizeof col[0], cliplist_cmp, NULL);
 664        sort(row, rows, sizeof row[0], cliplist_cmp, NULL);
 665        set_cliplist(dev,0x380,col,cols,"cols");
 666        set_cliplist(dev,0x384,row,rows,"rows");
 667        return 0;
 668}
 669
 670static int verify_preview(struct saa7134_dev *dev, struct v4l2_window *win, bool try)
 671{
 672        enum v4l2_field field;
 673        int maxw, maxh;
 674
 675        if (!try && (dev->ovbuf.base == NULL || dev->ovfmt == NULL))
 676                return -EINVAL;
 677        if (win->w.width < 48)
 678                win->w.width = 48;
 679        if (win->w.height < 32)
 680                win->w.height = 32;
 681        if (win->clipcount > 8)
 682                win->clipcount = 8;
 683
 684        win->chromakey = 0;
 685        win->global_alpha = 0;
 686        field = win->field;
 687        maxw  = dev->crop_current.width;
 688        maxh  = dev->crop_current.height;
 689
 690        if (V4L2_FIELD_ANY == field) {
 691                field = (win->w.height > maxh/2)
 692                        ? V4L2_FIELD_INTERLACED
 693                        : V4L2_FIELD_TOP;
 694        }
 695        switch (field) {
 696        case V4L2_FIELD_TOP:
 697        case V4L2_FIELD_BOTTOM:
 698                maxh = maxh / 2;
 699                break;
 700        default:
 701                field = V4L2_FIELD_INTERLACED;
 702                break;
 703        }
 704
 705        win->field = field;
 706        if (win->w.width > maxw)
 707                win->w.width = maxw;
 708        if (win->w.height > maxh)
 709                win->w.height = maxh;
 710        return 0;
 711}
 712
 713static int start_preview(struct saa7134_dev *dev)
 714{
 715        unsigned long base,control,bpl;
 716        int err;
 717
 718        err = verify_preview(dev, &dev->win, false);
 719        if (0 != err)
 720                return err;
 721
 722        dev->ovfield = dev->win.field;
 723        video_dbg("start_preview %dx%d+%d+%d %s field=%s\n",
 724                dev->win.w.width, dev->win.w.height,
 725                dev->win.w.left, dev->win.w.top,
 726                dev->ovfmt->name, v4l2_field_names[dev->ovfield]);
 727
 728        /* setup window + clipping */
 729        set_size(dev, TASK_B, dev->win.w.width, dev->win.w.height,
 730                 V4L2_FIELD_HAS_BOTH(dev->ovfield));
 731        setup_clipping(dev, dev->clips, dev->nclips,
 732                       V4L2_FIELD_HAS_BOTH(dev->ovfield));
 733        if (dev->ovfmt->yuv)
 734                saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x03);
 735        else
 736                saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x01);
 737        saa_writeb(SAA7134_OFMT_VIDEO_B, dev->ovfmt->pm | 0x20);
 738
 739        /* dma: setup channel 1 (= Video Task B) */
 740        base  = (unsigned long)dev->ovbuf.base;
 741        base += dev->ovbuf.fmt.bytesperline * dev->win.w.top;
 742        base += dev->ovfmt->depth/8         * dev->win.w.left;
 743        bpl   = dev->ovbuf.fmt.bytesperline;
 744        control = SAA7134_RS_CONTROL_BURST_16;
 745        if (dev->ovfmt->bswap)
 746                control |= SAA7134_RS_CONTROL_BSWAP;
 747        if (dev->ovfmt->wswap)
 748                control |= SAA7134_RS_CONTROL_WSWAP;
 749        if (V4L2_FIELD_HAS_BOTH(dev->ovfield)) {
 750                saa_writel(SAA7134_RS_BA1(1),base);
 751                saa_writel(SAA7134_RS_BA2(1),base+bpl);
 752                saa_writel(SAA7134_RS_PITCH(1),bpl*2);
 753                saa_writel(SAA7134_RS_CONTROL(1),control);
 754        } else {
 755                saa_writel(SAA7134_RS_BA1(1),base);
 756                saa_writel(SAA7134_RS_BA2(1),base);
 757                saa_writel(SAA7134_RS_PITCH(1),bpl);
 758                saa_writel(SAA7134_RS_CONTROL(1),control);
 759        }
 760
 761        /* start dma */
 762        dev->ovenable = 1;
 763        saa7134_set_dmabits(dev);
 764
 765        return 0;
 766}
 767
 768static int stop_preview(struct saa7134_dev *dev)
 769{
 770        dev->ovenable = 0;
 771        saa7134_set_dmabits(dev);
 772        return 0;
 773}
 774
 775/*
 776 * Media Controller helper functions
 777 */
 778
 779static int saa7134_enable_analog_tuner(struct saa7134_dev *dev)
 780{
 781#ifdef CONFIG_MEDIA_CONTROLLER
 782        struct media_device *mdev = dev->media_dev;
 783        struct media_entity *source;
 784        struct media_link *link, *found_link = NULL;
 785        int ret, active_links = 0;
 786
 787        if (!mdev || !dev->decoder)
 788                return 0;
 789
 790        /*
 791         * This will find the tuner that is connected into the decoder.
 792         * Technically, this is not 100% correct, as the device may be
 793         * using an analog input instead of the tuner. However, as we can't
 794         * do DVB streaming while the DMA engine is being used for V4L2,
 795         * this should be enough for the actual needs.
 796         */
 797        list_for_each_entry(link, &dev->decoder->links, list) {
 798                if (link->sink->entity == dev->decoder) {
 799                        found_link = link;
 800                        if (link->flags & MEDIA_LNK_FL_ENABLED)
 801                                active_links++;
 802                        break;
 803                }
 804        }
 805
 806        if (active_links == 1 || !found_link)
 807                return 0;
 808
 809        source = found_link->source->entity;
 810        list_for_each_entry(link, &source->links, list) {
 811                struct media_entity *sink;
 812                int flags = 0;
 813
 814                sink = link->sink->entity;
 815
 816                if (sink == dev->decoder)
 817                        flags = MEDIA_LNK_FL_ENABLED;
 818
 819                ret = media_entity_setup_link(link, flags);
 820                if (ret) {
 821                        pr_err("Couldn't change link %s->%s to %s. Error %d\n",
 822                               source->name, sink->name,
 823                               flags ? "enabled" : "disabled",
 824                               ret);
 825                        return ret;
 826                }
 827        }
 828#endif
 829        return 0;
 830}
 831
 832/* ------------------------------------------------------------------ */
 833
 834static int buffer_activate(struct saa7134_dev *dev,
 835                           struct saa7134_buf *buf,
 836                           struct saa7134_buf *next)
 837{
 838        struct saa7134_dmaqueue *dmaq = buf->vb2.vb2_buf.vb2_queue->drv_priv;
 839        unsigned long base,control,bpl;
 840        unsigned long bpl_uv,lines_uv,base2,base3,tmp; /* planar */
 841
 842        video_dbg("buffer_activate buf=%p\n", buf);
 843        buf->top_seen = 0;
 844
 845        set_size(dev, TASK_A, dev->width, dev->height,
 846                 V4L2_FIELD_HAS_BOTH(dev->field));
 847        if (dev->fmt->yuv)
 848                saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x03);
 849        else
 850                saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x01);
 851        saa_writeb(SAA7134_OFMT_VIDEO_A, dev->fmt->pm);
 852
 853        /* DMA: setup channel 0 (= Video Task A0) */
 854        base  = saa7134_buffer_base(buf);
 855        if (dev->fmt->planar)
 856                bpl = dev->width;
 857        else
 858                bpl = (dev->width * dev->fmt->depth) / 8;
 859        control = SAA7134_RS_CONTROL_BURST_16 |
 860                SAA7134_RS_CONTROL_ME |
 861                (dmaq->pt.dma >> 12);
 862        if (dev->fmt->bswap)
 863                control |= SAA7134_RS_CONTROL_BSWAP;
 864        if (dev->fmt->wswap)
 865                control |= SAA7134_RS_CONTROL_WSWAP;
 866        if (V4L2_FIELD_HAS_BOTH(dev->field)) {
 867                /* interlaced */
 868                saa_writel(SAA7134_RS_BA1(0),base);
 869                saa_writel(SAA7134_RS_BA2(0),base+bpl);
 870                saa_writel(SAA7134_RS_PITCH(0),bpl*2);
 871        } else {
 872                /* non-interlaced */
 873                saa_writel(SAA7134_RS_BA1(0),base);
 874                saa_writel(SAA7134_RS_BA2(0),base);
 875                saa_writel(SAA7134_RS_PITCH(0),bpl);
 876        }
 877        saa_writel(SAA7134_RS_CONTROL(0),control);
 878
 879        if (dev->fmt->planar) {
 880                /* DMA: setup channel 4+5 (= planar task A) */
 881                bpl_uv   = bpl >> dev->fmt->hshift;
 882                lines_uv = dev->height >> dev->fmt->vshift;
 883                base2    = base + bpl * dev->height;
 884                base3    = base2 + bpl_uv * lines_uv;
 885                if (dev->fmt->uvswap)
 886                        tmp = base2, base2 = base3, base3 = tmp;
 887                video_dbg("uv: bpl=%ld lines=%ld base2/3=%ld/%ld\n",
 888                        bpl_uv,lines_uv,base2,base3);
 889                if (V4L2_FIELD_HAS_BOTH(dev->field)) {
 890                        /* interlaced */
 891                        saa_writel(SAA7134_RS_BA1(4),base2);
 892                        saa_writel(SAA7134_RS_BA2(4),base2+bpl_uv);
 893                        saa_writel(SAA7134_RS_PITCH(4),bpl_uv*2);
 894                        saa_writel(SAA7134_RS_BA1(5),base3);
 895                        saa_writel(SAA7134_RS_BA2(5),base3+bpl_uv);
 896                        saa_writel(SAA7134_RS_PITCH(5),bpl_uv*2);
 897                } else {
 898                        /* non-interlaced */
 899                        saa_writel(SAA7134_RS_BA1(4),base2);
 900                        saa_writel(SAA7134_RS_BA2(4),base2);
 901                        saa_writel(SAA7134_RS_PITCH(4),bpl_uv);
 902                        saa_writel(SAA7134_RS_BA1(5),base3);
 903                        saa_writel(SAA7134_RS_BA2(5),base3);
 904                        saa_writel(SAA7134_RS_PITCH(5),bpl_uv);
 905                }
 906                saa_writel(SAA7134_RS_CONTROL(4),control);
 907                saa_writel(SAA7134_RS_CONTROL(5),control);
 908        }
 909
 910        /* start DMA */
 911        saa7134_set_dmabits(dev);
 912        mod_timer(&dmaq->timeout, jiffies + BUFFER_TIMEOUT);
 913        return 0;
 914}
 915
 916static int buffer_init(struct vb2_buffer *vb2)
 917{
 918        struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
 919        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
 920        struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 921
 922        dmaq->curr = NULL;
 923        buf->activate = buffer_activate;
 924        return 0;
 925}
 926
 927static int buffer_prepare(struct vb2_buffer *vb2)
 928{
 929        struct saa7134_dmaqueue *dmaq = vb2->vb2_queue->drv_priv;
 930        struct saa7134_dev *dev = dmaq->dev;
 931        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb2);
 932        struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 933        struct sg_table *dma = vb2_dma_sg_plane_desc(vb2, 0);
 934        unsigned int size;
 935
 936        if (dma->sgl->offset) {
 937                pr_err("The buffer is not page-aligned\n");
 938                return -EINVAL;
 939        }
 940        size = (dev->width * dev->height * dev->fmt->depth) >> 3;
 941        if (vb2_plane_size(vb2, 0) < size)
 942                return -EINVAL;
 943
 944        vb2_set_plane_payload(vb2, 0, size);
 945        vbuf->field = dev->field;
 946
 947        return saa7134_pgtable_build(dev->pci, &dmaq->pt, dma->sgl, dma->nents,
 948                                    saa7134_buffer_startpage(buf));
 949}
 950
 951static int queue_setup(struct vb2_queue *q,
 952                           unsigned int *nbuffers, unsigned int *nplanes,
 953                           unsigned int sizes[], struct device *alloc_devs[])
 954{
 955        struct saa7134_dmaqueue *dmaq = q->drv_priv;
 956        struct saa7134_dev *dev = dmaq->dev;
 957        int size = dev->fmt->depth * dev->width * dev->height >> 3;
 958
 959        if (dev->width    < 48 ||
 960            dev->height   < 32 ||
 961            dev->width/4  > dev->crop_current.width  ||
 962            dev->height/4 > dev->crop_current.height ||
 963            dev->width    > dev->crop_bounds.width  ||
 964            dev->height   > dev->crop_bounds.height)
 965                return -EINVAL;
 966
 967        *nbuffers = saa7134_buffer_count(size, *nbuffers);
 968        *nplanes = 1;
 969        sizes[0] = size;
 970
 971        saa7134_enable_analog_tuner(dev);
 972
 973        return 0;
 974}
 975
 976/*
 977 * move buffer to hardware queue
 978 */
 979void saa7134_vb2_buffer_queue(struct vb2_buffer *vb)
 980{
 981        struct saa7134_dmaqueue *dmaq = vb->vb2_queue->drv_priv;
 982        struct saa7134_dev *dev = dmaq->dev;
 983        struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 984        struct saa7134_buf *buf = container_of(vbuf, struct saa7134_buf, vb2);
 985
 986        saa7134_buffer_queue(dev, dmaq, buf);
 987}
 988EXPORT_SYMBOL_GPL(saa7134_vb2_buffer_queue);
 989
 990int saa7134_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
 991{
 992        struct saa7134_dmaqueue *dmaq = vq->drv_priv;
 993        struct saa7134_dev *dev = dmaq->dev;
 994
 995        /*
 996         * Planar video capture and TS share the same DMA channel,
 997         * so only one can be active at a time.
 998         */
 999        if (card_is_empress(dev) && vb2_is_busy(&dev->empress_vbq) &&
1000            dmaq == &dev->video_q && dev->fmt->planar) {
1001                struct saa7134_buf *buf, *tmp;
1002
1003                list_for_each_entry_safe(buf, tmp, &dmaq->queue, entry) {
1004                        list_del(&buf->entry);
1005                        vb2_buffer_done(&buf->vb2.vb2_buf,
1006                                        VB2_BUF_STATE_QUEUED);
1007                }
1008                if (dmaq->curr) {
1009                        vb2_buffer_done(&dmaq->curr->vb2.vb2_buf,
1010                                        VB2_BUF_STATE_QUEUED);
1011                        dmaq->curr = NULL;
1012                }
1013                return -EBUSY;
1014        }
1015
1016        /* The SAA7134 has a 1K FIFO; the datasheet suggests that when
1017         * configured conservatively, there's 22 usec of buffering for video.
1018         * We therefore request a DMA latency of 20 usec, giving us 2 usec of
1019         * margin in case the FIFO is configured differently to the datasheet.
1020         * Unfortunately, I lack register-level documentation to check the
1021         * Linux FIFO setup and confirm the perfect value.
1022         */
1023        if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
1024            (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
1025                pm_qos_add_request(&dev->qos_request,
1026                        PM_QOS_CPU_DMA_LATENCY, 20);
1027        dmaq->seq_nr = 0;
1028
1029        return 0;
1030}
1031
1032void saa7134_vb2_stop_streaming(struct vb2_queue *vq)
1033{
1034        struct saa7134_dmaqueue *dmaq = vq->drv_priv;
1035        struct saa7134_dev *dev = dmaq->dev;
1036
1037        saa7134_stop_streaming(dev, dmaq);
1038
1039        if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
1040            (dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
1041                pm_qos_remove_request(&dev->qos_request);
1042}
1043
1044static const struct vb2_ops vb2_qops = {
1045        .queue_setup    = queue_setup,
1046        .buf_init       = buffer_init,
1047        .buf_prepare    = buffer_prepare,
1048        .buf_queue      = saa7134_vb2_buffer_queue,
1049        .wait_prepare   = vb2_ops_wait_prepare,
1050        .wait_finish    = vb2_ops_wait_finish,
1051        .start_streaming = saa7134_vb2_start_streaming,
1052        .stop_streaming = saa7134_vb2_stop_streaming,
1053};
1054
1055/* ------------------------------------------------------------------ */
1056
1057static int saa7134_s_ctrl(struct v4l2_ctrl *ctrl)
1058{
1059        struct saa7134_dev *dev = container_of(ctrl->handler, struct saa7134_dev, ctrl_handler);
1060        unsigned long flags;
1061        int restart_overlay = 0;
1062
1063        switch (ctrl->id) {
1064        case V4L2_CID_BRIGHTNESS:
1065                dev->ctl_bright = ctrl->val;
1066                saa_writeb(SAA7134_DEC_LUMA_BRIGHT, ctrl->val);
1067                break;
1068        case V4L2_CID_HUE:
1069                dev->ctl_hue = ctrl->val;
1070                saa_writeb(SAA7134_DEC_CHROMA_HUE, ctrl->val);
1071                break;
1072        case V4L2_CID_CONTRAST:
1073                dev->ctl_contrast = ctrl->val;
1074                saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1075                           dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1076                break;
1077        case V4L2_CID_SATURATION:
1078                dev->ctl_saturation = ctrl->val;
1079                saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1080                           dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1081                break;
1082        case V4L2_CID_AUDIO_MUTE:
1083                dev->ctl_mute = ctrl->val;
1084                saa7134_tvaudio_setmute(dev);
1085                break;
1086        case V4L2_CID_AUDIO_VOLUME:
1087                dev->ctl_volume = ctrl->val;
1088                saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
1089                break;
1090        case V4L2_CID_PRIVATE_INVERT:
1091                dev->ctl_invert = ctrl->val;
1092                saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
1093                           dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
1094                saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
1095                           dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
1096                break;
1097        case V4L2_CID_HFLIP:
1098                dev->ctl_mirror = ctrl->val;
1099                restart_overlay = 1;
1100                break;
1101        case V4L2_CID_PRIVATE_Y_EVEN:
1102                dev->ctl_y_even = ctrl->val;
1103                restart_overlay = 1;
1104                break;
1105        case V4L2_CID_PRIVATE_Y_ODD:
1106                dev->ctl_y_odd = ctrl->val;
1107                restart_overlay = 1;
1108                break;
1109        case V4L2_CID_PRIVATE_AUTOMUTE:
1110        {
1111                struct v4l2_priv_tun_config tda9887_cfg;
1112
1113                tda9887_cfg.tuner = TUNER_TDA9887;
1114                tda9887_cfg.priv = &dev->tda9887_conf;
1115
1116                dev->ctl_automute = ctrl->val;
1117                if (dev->tda9887_conf) {
1118                        if (dev->ctl_automute)
1119                                dev->tda9887_conf |= TDA9887_AUTOMUTE;
1120                        else
1121                                dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
1122
1123                        saa_call_all(dev, tuner, s_config, &tda9887_cfg);
1124                }
1125                break;
1126        }
1127        default:
1128                return -EINVAL;
1129        }
1130        if (restart_overlay && dev->overlay_owner) {
1131                spin_lock_irqsave(&dev->slock, flags);
1132                stop_preview(dev);
1133                start_preview(dev);
1134                spin_unlock_irqrestore(&dev->slock, flags);
1135        }
1136        return 0;
1137}
1138
1139/* ------------------------------------------------------------------ */
1140
1141static int video_open(struct file *file)
1142{
1143        struct video_device *vdev = video_devdata(file);
1144        struct saa7134_dev *dev = video_drvdata(file);
1145        int ret = v4l2_fh_open(file);
1146
1147        if (ret < 0)
1148                return ret;
1149
1150        mutex_lock(&dev->lock);
1151        if (vdev->vfl_type == VFL_TYPE_RADIO) {
1152                /* switch to radio mode */
1153                saa7134_tvaudio_setinput(dev, &card(dev).radio);
1154                saa_call_all(dev, tuner, s_radio);
1155        } else {
1156                /* switch to video/vbi mode */
1157                video_mux(dev, dev->ctl_input);
1158        }
1159        mutex_unlock(&dev->lock);
1160
1161        return 0;
1162}
1163
1164static int video_release(struct file *file)
1165{
1166        struct video_device *vdev = video_devdata(file);
1167        struct saa7134_dev *dev = video_drvdata(file);
1168        struct v4l2_fh *fh = file->private_data;
1169        struct saa6588_command cmd;
1170        unsigned long flags;
1171
1172        mutex_lock(&dev->lock);
1173        saa7134_tvaudio_close(dev);
1174
1175        /* turn off overlay */
1176        if (fh == dev->overlay_owner) {
1177                spin_lock_irqsave(&dev->slock,flags);
1178                stop_preview(dev);
1179                spin_unlock_irqrestore(&dev->slock,flags);
1180                dev->overlay_owner = NULL;
1181        }
1182
1183        if (vdev->vfl_type == VFL_TYPE_RADIO)
1184                v4l2_fh_release(file);
1185        else
1186                _vb2_fop_release(file, NULL);
1187
1188        /* ts-capture will not work in planar mode, so turn it off Hac: 04.05*/
1189        saa_andorb(SAA7134_OFMT_VIDEO_A, 0x1f, 0);
1190        saa_andorb(SAA7134_OFMT_VIDEO_B, 0x1f, 0);
1191        saa_andorb(SAA7134_OFMT_DATA_A, 0x1f, 0);
1192        saa_andorb(SAA7134_OFMT_DATA_B, 0x1f, 0);
1193
1194        saa_call_all(dev, tuner, standby);
1195        if (vdev->vfl_type == VFL_TYPE_RADIO)
1196                saa_call_all(dev, core, ioctl, SAA6588_CMD_CLOSE, &cmd);
1197        mutex_unlock(&dev->lock);
1198
1199        return 0;
1200}
1201
1202static ssize_t radio_read(struct file *file, char __user *data,
1203                         size_t count, loff_t *ppos)
1204{
1205        struct saa7134_dev *dev = video_drvdata(file);
1206        struct saa6588_command cmd;
1207
1208        cmd.block_count = count/3;
1209        cmd.nonblocking = file->f_flags & O_NONBLOCK;
1210        cmd.buffer = data;
1211        cmd.instance = file;
1212        cmd.result = -ENODEV;
1213
1214        mutex_lock(&dev->lock);
1215        saa_call_all(dev, core, ioctl, SAA6588_CMD_READ, &cmd);
1216        mutex_unlock(&dev->lock);
1217
1218        return cmd.result;
1219}
1220
1221static __poll_t radio_poll(struct file *file, poll_table *wait)
1222{
1223        struct saa7134_dev *dev = video_drvdata(file);
1224        struct saa6588_command cmd;
1225        __poll_t rc = v4l2_ctrl_poll(file, wait);
1226
1227        cmd.instance = file;
1228        cmd.event_list = wait;
1229        cmd.poll_mask = 0;
1230        mutex_lock(&dev->lock);
1231        saa_call_all(dev, core, ioctl, SAA6588_CMD_POLL, &cmd);
1232        mutex_unlock(&dev->lock);
1233
1234        return rc | cmd.poll_mask;
1235}
1236
1237/* ------------------------------------------------------------------ */
1238
1239static int saa7134_try_get_set_fmt_vbi_cap(struct file *file, void *priv,
1240                                                struct v4l2_format *f)
1241{
1242        struct saa7134_dev *dev = video_drvdata(file);
1243        struct saa7134_tvnorm *norm = dev->tvnorm;
1244
1245        memset(&f->fmt.vbi.reserved, 0, sizeof(f->fmt.vbi.reserved));
1246        f->fmt.vbi.sampling_rate = 6750000 * 4;
1247        f->fmt.vbi.samples_per_line = 2048 /* VBI_LINE_LENGTH */;
1248        f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
1249        f->fmt.vbi.offset = 64 * 4;
1250        f->fmt.vbi.start[0] = norm->vbi_v_start_0;
1251        f->fmt.vbi.count[0] = norm->vbi_v_stop_0 - norm->vbi_v_start_0 +1;
1252        f->fmt.vbi.start[1] = norm->vbi_v_start_1;
1253        f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
1254        f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
1255
1256        return 0;
1257}
1258
1259static int saa7134_g_fmt_vid_cap(struct file *file, void *priv,
1260                                struct v4l2_format *f)
1261{
1262        struct saa7134_dev *dev = video_drvdata(file);
1263
1264        f->fmt.pix.width        = dev->width;
1265        f->fmt.pix.height       = dev->height;
1266        f->fmt.pix.field        = dev->field;
1267        f->fmt.pix.pixelformat  = dev->fmt->fourcc;
1268        if (dev->fmt->planar)
1269                f->fmt.pix.bytesperline = f->fmt.pix.width;
1270        else
1271                f->fmt.pix.bytesperline =
1272                        (f->fmt.pix.width * dev->fmt->depth) / 8;
1273        f->fmt.pix.sizeimage =
1274                (f->fmt.pix.height * f->fmt.pix.width * dev->fmt->depth) / 8;
1275        f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
1276        return 0;
1277}
1278
1279static int saa7134_g_fmt_vid_overlay(struct file *file, void *priv,
1280                                struct v4l2_format *f)
1281{
1282        struct saa7134_dev *dev = video_drvdata(file);
1283        struct v4l2_clip __user *clips = f->fmt.win.clips;
1284        u32 clipcount = f->fmt.win.clipcount;
1285        int err = 0;
1286        int i;
1287
1288        if (saa7134_no_overlay > 0) {
1289                pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1290                return -EINVAL;
1291        }
1292        f->fmt.win = dev->win;
1293        f->fmt.win.clips = clips;
1294        if (clips == NULL)
1295                clipcount = 0;
1296        if (dev->nclips < clipcount)
1297                clipcount = dev->nclips;
1298        f->fmt.win.clipcount = clipcount;
1299
1300        for (i = 0; !err && i < clipcount; i++) {
1301                if (copy_to_user(&f->fmt.win.clips[i].c, &dev->clips[i].c,
1302                                        sizeof(struct v4l2_rect)))
1303                        err = -EFAULT;
1304        }
1305
1306        return err;
1307}
1308
1309static int saa7134_try_fmt_vid_cap(struct file *file, void *priv,
1310                                                struct v4l2_format *f)
1311{
1312        struct saa7134_dev *dev = video_drvdata(file);
1313        struct saa7134_format *fmt;
1314        enum v4l2_field field;
1315        unsigned int maxw, maxh;
1316
1317        fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1318        if (NULL == fmt)
1319                return -EINVAL;
1320
1321        field = f->fmt.pix.field;
1322        maxw  = min(dev->crop_current.width*4,  dev->crop_bounds.width);
1323        maxh  = min(dev->crop_current.height*4, dev->crop_bounds.height);
1324
1325        if (V4L2_FIELD_ANY == field) {
1326                field = (f->fmt.pix.height > maxh/2)
1327                        ? V4L2_FIELD_INTERLACED
1328                        : V4L2_FIELD_BOTTOM;
1329        }
1330        switch (field) {
1331        case V4L2_FIELD_TOP:
1332        case V4L2_FIELD_BOTTOM:
1333                maxh = maxh / 2;
1334                break;
1335        default:
1336                field = V4L2_FIELD_INTERLACED;
1337                break;
1338        }
1339
1340        f->fmt.pix.field = field;
1341        if (f->fmt.pix.width  < 48)
1342                f->fmt.pix.width  = 48;
1343        if (f->fmt.pix.height < 32)
1344                f->fmt.pix.height = 32;
1345        if (f->fmt.pix.width > maxw)
1346                f->fmt.pix.width = maxw;
1347        if (f->fmt.pix.height > maxh)
1348                f->fmt.pix.height = maxh;
1349        f->fmt.pix.width &= ~0x03;
1350        if (fmt->planar)
1351                f->fmt.pix.bytesperline = f->fmt.pix.width;
1352        else
1353                f->fmt.pix.bytesperline =
1354                        (f->fmt.pix.width * fmt->depth) / 8;
1355        f->fmt.pix.sizeimage =
1356                (f->fmt.pix.height * f->fmt.pix.width * fmt->depth) / 8;
1357        f->fmt.pix.colorspace   = V4L2_COLORSPACE_SMPTE170M;
1358
1359        return 0;
1360}
1361
1362static int saa7134_try_fmt_vid_overlay(struct file *file, void *priv,
1363                                                struct v4l2_format *f)
1364{
1365        struct saa7134_dev *dev = video_drvdata(file);
1366
1367        if (saa7134_no_overlay > 0) {
1368                pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1369                return -EINVAL;
1370        }
1371
1372        if (f->fmt.win.clips == NULL)
1373                f->fmt.win.clipcount = 0;
1374        return verify_preview(dev, &f->fmt.win, true);
1375}
1376
1377static int saa7134_s_fmt_vid_cap(struct file *file, void *priv,
1378                                        struct v4l2_format *f)
1379{
1380        struct saa7134_dev *dev = video_drvdata(file);
1381        int err;
1382
1383        err = saa7134_try_fmt_vid_cap(file, priv, f);
1384        if (0 != err)
1385                return err;
1386
1387        dev->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
1388        dev->width = f->fmt.pix.width;
1389        dev->height = f->fmt.pix.height;
1390        dev->field = f->fmt.pix.field;
1391        return 0;
1392}
1393
1394static int saa7134_s_fmt_vid_overlay(struct file *file, void *priv,
1395                                        struct v4l2_format *f)
1396{
1397        struct saa7134_dev *dev = video_drvdata(file);
1398        int err;
1399        unsigned long flags;
1400
1401        if (saa7134_no_overlay > 0) {
1402                pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1403                return -EINVAL;
1404        }
1405        if (f->fmt.win.clips == NULL)
1406                f->fmt.win.clipcount = 0;
1407        err = verify_preview(dev, &f->fmt.win, true);
1408        if (0 != err)
1409                return err;
1410
1411        dev->win    = f->fmt.win;
1412        dev->nclips = f->fmt.win.clipcount;
1413
1414        if (copy_from_user(dev->clips, f->fmt.win.clips,
1415                           sizeof(struct v4l2_clip) * dev->nclips))
1416                return -EFAULT;
1417
1418        if (priv == dev->overlay_owner) {
1419                spin_lock_irqsave(&dev->slock, flags);
1420                stop_preview(dev);
1421                start_preview(dev);
1422                spin_unlock_irqrestore(&dev->slock, flags);
1423        }
1424
1425        return 0;
1426}
1427
1428int saa7134_enum_input(struct file *file, void *priv, struct v4l2_input *i)
1429{
1430        struct saa7134_dev *dev = video_drvdata(file);
1431        unsigned int n;
1432
1433        n = i->index;
1434        if (n >= SAA7134_INPUT_MAX)
1435                return -EINVAL;
1436        if (card_in(dev, i->index).type == SAA7134_NO_INPUT)
1437                return -EINVAL;
1438        i->index = n;
1439        strscpy(i->name, saa7134_input_name[card_in(dev, n).type],
1440                sizeof(i->name));
1441        switch (card_in(dev, n).type) {
1442        case SAA7134_INPUT_TV:
1443        case SAA7134_INPUT_TV_MONO:
1444                i->type = V4L2_INPUT_TYPE_TUNER;
1445                break;
1446        default:
1447                i->type  = V4L2_INPUT_TYPE_CAMERA;
1448                break;
1449        }
1450        if (n == dev->ctl_input) {
1451                int v1 = saa_readb(SAA7134_STATUS_VIDEO1);
1452                int v2 = saa_readb(SAA7134_STATUS_VIDEO2);
1453
1454                if (0 != (v1 & 0x40))
1455                        i->status |= V4L2_IN_ST_NO_H_LOCK;
1456                if (0 != (v2 & 0x40))
1457                        i->status |= V4L2_IN_ST_NO_SIGNAL;
1458                if (0 != (v2 & 0x0e))
1459                        i->status |= V4L2_IN_ST_MACROVISION;
1460        }
1461        i->std = SAA7134_NORMS;
1462        return 0;
1463}
1464EXPORT_SYMBOL_GPL(saa7134_enum_input);
1465
1466int saa7134_g_input(struct file *file, void *priv, unsigned int *i)
1467{
1468        struct saa7134_dev *dev = video_drvdata(file);
1469
1470        *i = dev->ctl_input;
1471        return 0;
1472}
1473EXPORT_SYMBOL_GPL(saa7134_g_input);
1474
1475int saa7134_s_input(struct file *file, void *priv, unsigned int i)
1476{
1477        struct saa7134_dev *dev = video_drvdata(file);
1478
1479        if (i >= SAA7134_INPUT_MAX)
1480                return -EINVAL;
1481        if (card_in(dev, i).type == SAA7134_NO_INPUT)
1482                return -EINVAL;
1483        video_mux(dev, i);
1484        return 0;
1485}
1486EXPORT_SYMBOL_GPL(saa7134_s_input);
1487
1488int saa7134_querycap(struct file *file, void *priv,
1489                                        struct v4l2_capability *cap)
1490{
1491        struct saa7134_dev *dev = video_drvdata(file);
1492
1493        strscpy(cap->driver, "saa7134", sizeof(cap->driver));
1494        strscpy(cap->card, saa7134_boards[dev->board].name,
1495                sizeof(cap->card));
1496        sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
1497        cap->capabilities = V4L2_CAP_READWRITE | V4L2_CAP_STREAMING |
1498                            V4L2_CAP_RADIO | V4L2_CAP_VIDEO_CAPTURE |
1499                            V4L2_CAP_VBI_CAPTURE | V4L2_CAP_DEVICE_CAPS;
1500        if (dev->tuner_type != TUNER_ABSENT && dev->tuner_type != UNSET)
1501                cap->capabilities |= V4L2_CAP_TUNER;
1502        if (dev->has_rds)
1503                cap->capabilities |= V4L2_CAP_RDS_CAPTURE;
1504        if (saa7134_no_overlay <= 0)
1505                cap->capabilities |= V4L2_CAP_VIDEO_OVERLAY;
1506
1507        return 0;
1508}
1509EXPORT_SYMBOL_GPL(saa7134_querycap);
1510
1511int saa7134_s_std(struct file *file, void *priv, v4l2_std_id id)
1512{
1513        struct saa7134_dev *dev = video_drvdata(file);
1514        struct v4l2_fh *fh = priv;
1515        unsigned long flags;
1516        unsigned int i;
1517        v4l2_std_id fixup;
1518
1519        if (is_empress(file) && dev->overlay_owner) {
1520                /* Don't change the std from the mpeg device
1521                   if overlay is active. */
1522                return -EBUSY;
1523        }
1524
1525        for (i = 0; i < TVNORMS; i++)
1526                if (id == tvnorms[i].id)
1527                        break;
1528
1529        if (i == TVNORMS)
1530                for (i = 0; i < TVNORMS; i++)
1531                        if (id & tvnorms[i].id)
1532                                break;
1533        if (i == TVNORMS)
1534                return -EINVAL;
1535
1536        if ((id & V4L2_STD_SECAM) && (secam[0] != '-')) {
1537                if (secam[0] == 'L' || secam[0] == 'l') {
1538                        if (secam[1] == 'C' || secam[1] == 'c')
1539                                fixup = V4L2_STD_SECAM_LC;
1540                        else
1541                                fixup = V4L2_STD_SECAM_L;
1542                } else {
1543                        if (secam[0] == 'D' || secam[0] == 'd')
1544                                fixup = V4L2_STD_SECAM_DK;
1545                        else
1546                                fixup = V4L2_STD_SECAM;
1547                }
1548                for (i = 0; i < TVNORMS; i++) {
1549                        if (fixup == tvnorms[i].id)
1550                                break;
1551                }
1552                if (i == TVNORMS)
1553                        return -EINVAL;
1554        }
1555
1556        id = tvnorms[i].id;
1557
1558        if (!is_empress(file) && fh == dev->overlay_owner) {
1559                spin_lock_irqsave(&dev->slock, flags);
1560                stop_preview(dev);
1561                spin_unlock_irqrestore(&dev->slock, flags);
1562
1563                set_tvnorm(dev, &tvnorms[i]);
1564
1565                spin_lock_irqsave(&dev->slock, flags);
1566                start_preview(dev);
1567                spin_unlock_irqrestore(&dev->slock, flags);
1568        } else
1569                set_tvnorm(dev, &tvnorms[i]);
1570
1571        saa7134_tvaudio_do_scan(dev);
1572        return 0;
1573}
1574EXPORT_SYMBOL_GPL(saa7134_s_std);
1575
1576int saa7134_g_std(struct file *file, void *priv, v4l2_std_id *id)
1577{
1578        struct saa7134_dev *dev = video_drvdata(file);
1579
1580        *id = dev->tvnorm->id;
1581        return 0;
1582}
1583EXPORT_SYMBOL_GPL(saa7134_g_std);
1584
1585static v4l2_std_id saa7134_read_std(struct saa7134_dev *dev)
1586{
1587        static v4l2_std_id stds[] = {
1588                V4L2_STD_UNKNOWN,
1589                V4L2_STD_NTSC,
1590                V4L2_STD_PAL,
1591                V4L2_STD_SECAM };
1592
1593        v4l2_std_id result = 0;
1594
1595        u8 st1 = saa_readb(SAA7134_STATUS_VIDEO1);
1596        u8 st2 = saa_readb(SAA7134_STATUS_VIDEO2);
1597
1598        if (!(st2 & 0x1)) /* RDCAP == 0 */
1599                result = V4L2_STD_UNKNOWN;
1600        else
1601                result = stds[st1 & 0x03];
1602
1603        return result;
1604}
1605
1606int saa7134_querystd(struct file *file, void *priv, v4l2_std_id *std)
1607{
1608        struct saa7134_dev *dev = video_drvdata(file);
1609        *std &= saa7134_read_std(dev);
1610        return 0;
1611}
1612EXPORT_SYMBOL_GPL(saa7134_querystd);
1613
1614static int saa7134_g_pixelaspect(struct file *file, void *priv,
1615                                 int type, struct v4l2_fract *f)
1616{
1617        struct saa7134_dev *dev = video_drvdata(file);
1618
1619        if (type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1620            type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1621                return -EINVAL;
1622
1623        if (dev->tvnorm->id & V4L2_STD_525_60) {
1624                f->numerator   = 11;
1625                f->denominator = 10;
1626        }
1627        if (dev->tvnorm->id & V4L2_STD_625_50) {
1628                f->numerator   = 54;
1629                f->denominator = 59;
1630        }
1631        return 0;
1632}
1633
1634static int saa7134_g_selection(struct file *file, void *f, struct v4l2_selection *sel)
1635{
1636        struct saa7134_dev *dev = video_drvdata(file);
1637
1638        if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1639            sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1640                return -EINVAL;
1641
1642        switch (sel->target) {
1643        case V4L2_SEL_TGT_CROP:
1644                sel->r = dev->crop_current;
1645                break;
1646        case V4L2_SEL_TGT_CROP_DEFAULT:
1647                sel->r = dev->crop_defrect;
1648                break;
1649        case V4L2_SEL_TGT_CROP_BOUNDS:
1650                sel->r  = dev->crop_bounds;
1651                break;
1652        default:
1653                return -EINVAL;
1654        }
1655        return 0;
1656}
1657
1658static int saa7134_s_selection(struct file *file, void *f, struct v4l2_selection *sel)
1659{
1660        struct saa7134_dev *dev = video_drvdata(file);
1661        struct v4l2_rect *b = &dev->crop_bounds;
1662        struct v4l2_rect *c = &dev->crop_current;
1663
1664        if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
1665            sel->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
1666                return -EINVAL;
1667
1668        if (sel->target != V4L2_SEL_TGT_CROP)
1669                return -EINVAL;
1670
1671        if (dev->overlay_owner)
1672                return -EBUSY;
1673        if (vb2_is_streaming(&dev->video_vbq))
1674                return -EBUSY;
1675
1676        *c = sel->r;
1677        if (c->top < b->top)
1678                c->top = b->top;
1679        if (c->top > b->top + b->height)
1680                c->top = b->top + b->height;
1681        if (c->height > b->top - c->top + b->height)
1682                c->height = b->top - c->top + b->height;
1683
1684        if (c->left < b->left)
1685                c->left = b->left;
1686        if (c->left > b->left + b->width)
1687                c->left = b->left + b->width;
1688        if (c->width > b->left - c->left + b->width)
1689                c->width = b->left - c->left + b->width;
1690        sel->r = *c;
1691        return 0;
1692}
1693
1694int saa7134_g_tuner(struct file *file, void *priv,
1695                                        struct v4l2_tuner *t)
1696{
1697        struct saa7134_dev *dev = video_drvdata(file);
1698        int n;
1699
1700        if (0 != t->index)
1701                return -EINVAL;
1702        memset(t, 0, sizeof(*t));
1703        for (n = 0; n < SAA7134_INPUT_MAX; n++) {
1704                if (card_in(dev, n).type == SAA7134_INPUT_TV ||
1705                    card_in(dev, n).type == SAA7134_INPUT_TV_MONO)
1706                        break;
1707        }
1708        if (n == SAA7134_INPUT_MAX)
1709                return -EINVAL;
1710        if (card_in(dev, n).type != SAA7134_NO_INPUT) {
1711                strscpy(t->name, "Television", sizeof(t->name));
1712                t->type = V4L2_TUNER_ANALOG_TV;
1713                saa_call_all(dev, tuner, g_tuner, t);
1714                t->capability = V4L2_TUNER_CAP_NORM |
1715                        V4L2_TUNER_CAP_STEREO |
1716                        V4L2_TUNER_CAP_LANG1 |
1717                        V4L2_TUNER_CAP_LANG2;
1718                t->rxsubchans = saa7134_tvaudio_getstereo(dev);
1719                t->audmode = saa7134_tvaudio_rx2mode(t->rxsubchans);
1720        }
1721        if (0 != (saa_readb(SAA7134_STATUS_VIDEO1) & 0x03))
1722                t->signal = 0xffff;
1723        return 0;
1724}
1725EXPORT_SYMBOL_GPL(saa7134_g_tuner);
1726
1727int saa7134_s_tuner(struct file *file, void *priv,
1728                                        const struct v4l2_tuner *t)
1729{
1730        struct saa7134_dev *dev = video_drvdata(file);
1731        int rx, mode;
1732
1733        if (0 != t->index)
1734                return -EINVAL;
1735
1736        mode = dev->thread.mode;
1737        if (UNSET == mode) {
1738                rx   = saa7134_tvaudio_getstereo(dev);
1739                mode = saa7134_tvaudio_rx2mode(rx);
1740        }
1741        if (mode != t->audmode)
1742                dev->thread.mode = t->audmode;
1743
1744        return 0;
1745}
1746EXPORT_SYMBOL_GPL(saa7134_s_tuner);
1747
1748int saa7134_g_frequency(struct file *file, void *priv,
1749                                        struct v4l2_frequency *f)
1750{
1751        struct saa7134_dev *dev = video_drvdata(file);
1752
1753        if (0 != f->tuner)
1754                return -EINVAL;
1755
1756        saa_call_all(dev, tuner, g_frequency, f);
1757
1758        return 0;
1759}
1760EXPORT_SYMBOL_GPL(saa7134_g_frequency);
1761
1762int saa7134_s_frequency(struct file *file, void *priv,
1763                                        const struct v4l2_frequency *f)
1764{
1765        struct saa7134_dev *dev = video_drvdata(file);
1766
1767        if (0 != f->tuner)
1768                return -EINVAL;
1769
1770        saa_call_all(dev, tuner, s_frequency, f);
1771
1772        saa7134_tvaudio_do_scan(dev);
1773        return 0;
1774}
1775EXPORT_SYMBOL_GPL(saa7134_s_frequency);
1776
1777static int saa7134_enum_fmt_vid_cap(struct file *file, void  *priv,
1778                                        struct v4l2_fmtdesc *f)
1779{
1780        if (f->index >= FORMATS)
1781                return -EINVAL;
1782
1783        strscpy(f->description, formats[f->index].name,
1784                sizeof(f->description));
1785
1786        f->pixelformat = formats[f->index].fourcc;
1787
1788        return 0;
1789}
1790
1791static int saa7134_enum_fmt_vid_overlay(struct file *file, void  *priv,
1792                                        struct v4l2_fmtdesc *f)
1793{
1794        if (saa7134_no_overlay > 0) {
1795                pr_err("V4L2_BUF_TYPE_VIDEO_OVERLAY: no_overlay\n");
1796                return -EINVAL;
1797        }
1798
1799        if ((f->index >= FORMATS) || formats[f->index].planar)
1800                return -EINVAL;
1801
1802        strscpy(f->description, formats[f->index].name,
1803                sizeof(f->description));
1804
1805        f->pixelformat = formats[f->index].fourcc;
1806
1807        return 0;
1808}
1809
1810static int saa7134_g_fbuf(struct file *file, void *f,
1811                                struct v4l2_framebuffer *fb)
1812{
1813        struct saa7134_dev *dev = video_drvdata(file);
1814
1815        *fb = dev->ovbuf;
1816        fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
1817
1818        return 0;
1819}
1820
1821static int saa7134_s_fbuf(struct file *file, void *f,
1822                                        const struct v4l2_framebuffer *fb)
1823{
1824        struct saa7134_dev *dev = video_drvdata(file);
1825        struct saa7134_format *fmt;
1826
1827        if (!capable(CAP_SYS_ADMIN) &&
1828           !capable(CAP_SYS_RAWIO))
1829                return -EPERM;
1830
1831        /* check args */
1832        fmt = format_by_fourcc(fb->fmt.pixelformat);
1833        if (NULL == fmt)
1834                return -EINVAL;
1835
1836        /* ok, accept it */
1837        dev->ovbuf = *fb;
1838        dev->ovfmt = fmt;
1839        if (0 == dev->ovbuf.fmt.bytesperline)
1840                dev->ovbuf.fmt.bytesperline =
1841                        dev->ovbuf.fmt.width*fmt->depth/8;
1842        return 0;
1843}
1844
1845static int saa7134_overlay(struct file *file, void *priv, unsigned int on)
1846{
1847        struct saa7134_dev *dev = video_drvdata(file);
1848        unsigned long flags;
1849
1850        if (on) {
1851                if (saa7134_no_overlay > 0) {
1852                        video_dbg("no_overlay\n");
1853                        return -EINVAL;
1854                }
1855
1856                if (dev->overlay_owner && priv != dev->overlay_owner)
1857                        return -EBUSY;
1858                dev->overlay_owner = priv;
1859                spin_lock_irqsave(&dev->slock, flags);
1860                start_preview(dev);
1861                spin_unlock_irqrestore(&dev->slock, flags);
1862        }
1863        if (!on) {
1864                if (priv != dev->overlay_owner)
1865                        return -EINVAL;
1866                spin_lock_irqsave(&dev->slock, flags);
1867                stop_preview(dev);
1868                spin_unlock_irqrestore(&dev->slock, flags);
1869                dev->overlay_owner = NULL;
1870        }
1871        return 0;
1872}
1873
1874#ifdef CONFIG_VIDEO_ADV_DEBUG
1875static int vidioc_g_register (struct file *file, void *priv,
1876                              struct v4l2_dbg_register *reg)
1877{
1878        struct saa7134_dev *dev = video_drvdata(file);
1879
1880        reg->val = saa_readb(reg->reg & 0xffffff);
1881        reg->size = 1;
1882        return 0;
1883}
1884
1885static int vidioc_s_register (struct file *file, void *priv,
1886                                const struct v4l2_dbg_register *reg)
1887{
1888        struct saa7134_dev *dev = video_drvdata(file);
1889
1890        saa_writeb(reg->reg & 0xffffff, reg->val);
1891        return 0;
1892}
1893#endif
1894
1895static int radio_g_tuner(struct file *file, void *priv,
1896                                        struct v4l2_tuner *t)
1897{
1898        struct saa7134_dev *dev = video_drvdata(file);
1899
1900        if (0 != t->index)
1901                return -EINVAL;
1902
1903        strscpy(t->name, "Radio", sizeof(t->name));
1904
1905        saa_call_all(dev, tuner, g_tuner, t);
1906        t->audmode &= V4L2_TUNER_MODE_MONO | V4L2_TUNER_MODE_STEREO;
1907        if (dev->input->amux == TV) {
1908                t->signal = 0xf800 - ((saa_readb(0x581) & 0x1f) << 11);
1909                t->rxsubchans = (saa_readb(0x529) & 0x08) ?
1910                                V4L2_TUNER_SUB_STEREO : V4L2_TUNER_SUB_MONO;
1911        }
1912        return 0;
1913}
1914static int radio_s_tuner(struct file *file, void *priv,
1915                                        const struct v4l2_tuner *t)
1916{
1917        struct saa7134_dev *dev = video_drvdata(file);
1918
1919        if (0 != t->index)
1920                return -EINVAL;
1921
1922        saa_call_all(dev, tuner, s_tuner, t);
1923        return 0;
1924}
1925
1926static const struct v4l2_file_operations video_fops =
1927{
1928        .owner    = THIS_MODULE,
1929        .open     = video_open,
1930        .release  = video_release,
1931        .read     = vb2_fop_read,
1932        .poll     = vb2_fop_poll,
1933        .mmap     = vb2_fop_mmap,
1934        .unlocked_ioctl   = video_ioctl2,
1935};
1936
1937static const struct v4l2_ioctl_ops video_ioctl_ops = {
1938        .vidioc_querycap                = saa7134_querycap,
1939        .vidioc_enum_fmt_vid_cap        = saa7134_enum_fmt_vid_cap,
1940        .vidioc_g_fmt_vid_cap           = saa7134_g_fmt_vid_cap,
1941        .vidioc_try_fmt_vid_cap         = saa7134_try_fmt_vid_cap,
1942        .vidioc_s_fmt_vid_cap           = saa7134_s_fmt_vid_cap,
1943        .vidioc_enum_fmt_vid_overlay    = saa7134_enum_fmt_vid_overlay,
1944        .vidioc_g_fmt_vid_overlay       = saa7134_g_fmt_vid_overlay,
1945        .vidioc_try_fmt_vid_overlay     = saa7134_try_fmt_vid_overlay,
1946        .vidioc_s_fmt_vid_overlay       = saa7134_s_fmt_vid_overlay,
1947        .vidioc_g_fmt_vbi_cap           = saa7134_try_get_set_fmt_vbi_cap,
1948        .vidioc_try_fmt_vbi_cap         = saa7134_try_get_set_fmt_vbi_cap,
1949        .vidioc_s_fmt_vbi_cap           = saa7134_try_get_set_fmt_vbi_cap,
1950        .vidioc_g_pixelaspect           = saa7134_g_pixelaspect,
1951        .vidioc_reqbufs                 = vb2_ioctl_reqbufs,
1952        .vidioc_querybuf                = vb2_ioctl_querybuf,
1953        .vidioc_qbuf                    = vb2_ioctl_qbuf,
1954        .vidioc_dqbuf                   = vb2_ioctl_dqbuf,
1955        .vidioc_expbuf                  = vb2_ioctl_expbuf,
1956        .vidioc_s_std                   = saa7134_s_std,
1957        .vidioc_g_std                   = saa7134_g_std,
1958        .vidioc_querystd                = saa7134_querystd,
1959        .vidioc_enum_input              = saa7134_enum_input,
1960        .vidioc_g_input                 = saa7134_g_input,
1961        .vidioc_s_input                 = saa7134_s_input,
1962        .vidioc_streamon                = vb2_ioctl_streamon,
1963        .vidioc_streamoff               = vb2_ioctl_streamoff,
1964        .vidioc_g_tuner                 = saa7134_g_tuner,
1965        .vidioc_s_tuner                 = saa7134_s_tuner,
1966        .vidioc_g_selection             = saa7134_g_selection,
1967        .vidioc_s_selection             = saa7134_s_selection,
1968        .vidioc_g_fbuf                  = saa7134_g_fbuf,
1969        .vidioc_s_fbuf                  = saa7134_s_fbuf,
1970        .vidioc_overlay                 = saa7134_overlay,
1971        .vidioc_g_frequency             = saa7134_g_frequency,
1972        .vidioc_s_frequency             = saa7134_s_frequency,
1973#ifdef CONFIG_VIDEO_ADV_DEBUG
1974        .vidioc_g_register              = vidioc_g_register,
1975        .vidioc_s_register              = vidioc_s_register,
1976#endif
1977        .vidioc_log_status              = v4l2_ctrl_log_status,
1978        .vidioc_subscribe_event         = v4l2_ctrl_subscribe_event,
1979        .vidioc_unsubscribe_event       = v4l2_event_unsubscribe,
1980};
1981
1982static const struct v4l2_file_operations radio_fops = {
1983        .owner    = THIS_MODULE,
1984        .open     = video_open,
1985        .read     = radio_read,
1986        .release  = video_release,
1987        .unlocked_ioctl = video_ioctl2,
1988        .poll     = radio_poll,
1989};
1990
1991static const struct v4l2_ioctl_ops radio_ioctl_ops = {
1992        .vidioc_querycap        = saa7134_querycap,
1993        .vidioc_g_tuner         = radio_g_tuner,
1994        .vidioc_s_tuner         = radio_s_tuner,
1995        .vidioc_g_frequency     = saa7134_g_frequency,
1996        .vidioc_s_frequency     = saa7134_s_frequency,
1997        .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
1998        .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
1999};
2000
2001/* ----------------------------------------------------------- */
2002/* exported stuff                                              */
2003
2004struct video_device saa7134_video_template = {
2005        .name                           = "saa7134-video",
2006        .fops                           = &video_fops,
2007        .ioctl_ops                      = &video_ioctl_ops,
2008        .tvnorms                        = SAA7134_NORMS,
2009};
2010
2011struct video_device saa7134_radio_template = {
2012        .name                   = "saa7134-radio",
2013        .fops                   = &radio_fops,
2014        .ioctl_ops              = &radio_ioctl_ops,
2015};
2016
2017static const struct v4l2_ctrl_ops saa7134_ctrl_ops = {
2018        .s_ctrl = saa7134_s_ctrl,
2019};
2020
2021static const struct v4l2_ctrl_config saa7134_ctrl_invert = {
2022        .ops = &saa7134_ctrl_ops,
2023        .id = V4L2_CID_PRIVATE_INVERT,
2024        .name = "Invert",
2025        .type = V4L2_CTRL_TYPE_BOOLEAN,
2026        .min = 0,
2027        .max = 1,
2028        .step = 1,
2029};
2030
2031static const struct v4l2_ctrl_config saa7134_ctrl_y_odd = {
2032        .ops = &saa7134_ctrl_ops,
2033        .id = V4L2_CID_PRIVATE_Y_ODD,
2034        .name = "Y Offset Odd Field",
2035        .type = V4L2_CTRL_TYPE_INTEGER,
2036        .min = 0,
2037        .max = 128,
2038        .step = 1,
2039};
2040
2041static const struct v4l2_ctrl_config saa7134_ctrl_y_even = {
2042        .ops = &saa7134_ctrl_ops,
2043        .id = V4L2_CID_PRIVATE_Y_EVEN,
2044        .name = "Y Offset Even Field",
2045        .type = V4L2_CTRL_TYPE_INTEGER,
2046        .min = 0,
2047        .max = 128,
2048        .step = 1,
2049};
2050
2051static const struct v4l2_ctrl_config saa7134_ctrl_automute = {
2052        .ops = &saa7134_ctrl_ops,
2053        .id = V4L2_CID_PRIVATE_AUTOMUTE,
2054        .name = "Automute",
2055        .type = V4L2_CTRL_TYPE_BOOLEAN,
2056        .min = 0,
2057        .max = 1,
2058        .step = 1,
2059        .def = 1,
2060};
2061
2062int saa7134_video_init1(struct saa7134_dev *dev)
2063{
2064        struct v4l2_ctrl_handler *hdl = &dev->ctrl_handler;
2065        struct vb2_queue *q;
2066        int ret;
2067
2068        /* sanitycheck insmod options */
2069        if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
2070                gbuffers = 2;
2071        if (gbufsize > gbufsize_max)
2072                gbufsize = gbufsize_max;
2073        gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
2074
2075        v4l2_ctrl_handler_init(hdl, 11);
2076        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2077                        V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
2078        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2079                        V4L2_CID_CONTRAST, 0, 127, 1, 68);
2080        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2081                        V4L2_CID_SATURATION, 0, 127, 1, 64);
2082        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2083                        V4L2_CID_HUE, -128, 127, 1, 0);
2084        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2085                        V4L2_CID_HFLIP, 0, 1, 1, 0);
2086        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2087                        V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0);
2088        v4l2_ctrl_new_std(hdl, &saa7134_ctrl_ops,
2089                        V4L2_CID_AUDIO_VOLUME, -15, 15, 1, 0);
2090        v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_invert, NULL);
2091        v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_odd, NULL);
2092        v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_y_even, NULL);
2093        v4l2_ctrl_new_custom(hdl, &saa7134_ctrl_automute, NULL);
2094        if (hdl->error)
2095                return hdl->error;
2096        if (card_has_radio(dev)) {
2097                hdl = &dev->radio_ctrl_handler;
2098                v4l2_ctrl_handler_init(hdl, 2);
2099                v4l2_ctrl_add_handler(hdl, &dev->ctrl_handler,
2100                                v4l2_ctrl_radio_filter, false);
2101                if (hdl->error)
2102                        return hdl->error;
2103        }
2104        dev->ctl_mute       = 1;
2105
2106        if (dev->tda9887_conf && saa7134_ctrl_automute.def)
2107                dev->tda9887_conf |= TDA9887_AUTOMUTE;
2108        dev->automute       = 0;
2109
2110        INIT_LIST_HEAD(&dev->video_q.queue);
2111        timer_setup(&dev->video_q.timeout, saa7134_buffer_timeout, 0);
2112        dev->video_q.dev              = dev;
2113        dev->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
2114        dev->width    = 720;
2115        dev->height   = 576;
2116        dev->field = V4L2_FIELD_INTERLACED;
2117        dev->win.w.width = dev->width;
2118        dev->win.w.height = dev->height;
2119        dev->win.field = V4L2_FIELD_INTERLACED;
2120        dev->ovbuf.fmt.width = dev->width;
2121        dev->ovbuf.fmt.height = dev->height;
2122        dev->ovbuf.fmt.pixelformat = dev->fmt->fourcc;
2123        dev->ovbuf.fmt.colorspace = V4L2_COLORSPACE_SMPTE170M;
2124
2125        if (saa7134_boards[dev->board].video_out)
2126                saa7134_videoport_init(dev);
2127
2128        q = &dev->video_vbq;
2129        q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
2130        /*
2131         * Do not add VB2_USERPTR unless explicitly requested: the saa7134 DMA
2132         * engine cannot handle transfers that do not start at the beginning
2133         * of a page. A user-provided pointer can start anywhere in a page, so
2134         * USERPTR support is a no-go unless the application knows about these
2135         * limitations and has special support for this.
2136         */
2137        q->io_modes = VB2_MMAP | VB2_DMABUF | VB2_READ;
2138        if (saa7134_userptr)
2139                q->io_modes |= VB2_USERPTR;
2140        q->drv_priv = &dev->video_q;
2141        q->ops = &vb2_qops;
2142        q->gfp_flags = GFP_DMA32;
2143        q->mem_ops = &vb2_dma_sg_memops;
2144        q->buf_struct_size = sizeof(struct saa7134_buf);
2145        q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2146        q->lock = &dev->lock;
2147        q->dev = &dev->pci->dev;
2148        ret = vb2_queue_init(q);
2149        if (ret)
2150                return ret;
2151        saa7134_pgtable_alloc(dev->pci, &dev->video_q.pt);
2152
2153        q = &dev->vbi_vbq;
2154        q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
2155        /* Don't add VB2_USERPTR, see comment above */
2156        q->io_modes = VB2_MMAP | VB2_READ;
2157        if (saa7134_userptr)
2158                q->io_modes |= VB2_USERPTR;
2159        q->drv_priv = &dev->vbi_q;
2160        q->ops = &saa7134_vbi_qops;
2161        q->gfp_flags = GFP_DMA32;
2162        q->mem_ops = &vb2_dma_sg_memops;
2163        q->buf_struct_size = sizeof(struct saa7134_buf);
2164        q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
2165        q->lock = &dev->lock;
2166        q->dev = &dev->pci->dev;
2167        ret = vb2_queue_init(q);
2168        if (ret)
2169                return ret;
2170        saa7134_pgtable_alloc(dev->pci, &dev->vbi_q.pt);
2171
2172        return 0;
2173}
2174
2175void saa7134_video_fini(struct saa7134_dev *dev)
2176{
2177        /* free stuff */
2178        vb2_queue_release(&dev->video_vbq);
2179        saa7134_pgtable_free(dev->pci, &dev->video_q.pt);
2180        vb2_queue_release(&dev->vbi_vbq);
2181        saa7134_pgtable_free(dev->pci, &dev->vbi_q.pt);
2182        v4l2_ctrl_handler_free(&dev->ctrl_handler);
2183        if (card_has_radio(dev))
2184                v4l2_ctrl_handler_free(&dev->radio_ctrl_handler);
2185}
2186
2187int saa7134_videoport_init(struct saa7134_dev *dev)
2188{
2189        /* enable video output */
2190        int vo = saa7134_boards[dev->board].video_out;
2191        int video_reg;
2192        unsigned int vid_port_opts = saa7134_boards[dev->board].vid_port_opts;
2193
2194        /* Configure videoport */
2195        saa_writeb(SAA7134_VIDEO_PORT_CTRL0, video_out[vo][0]);
2196        video_reg = video_out[vo][1];
2197        if (vid_port_opts & SET_T_CODE_POLARITY_NON_INVERTED)
2198                video_reg &= ~VP_T_CODE_P_INVERTED;
2199        saa_writeb(SAA7134_VIDEO_PORT_CTRL1, video_reg);
2200        saa_writeb(SAA7134_VIDEO_PORT_CTRL2, video_out[vo][2]);
2201        saa_writeb(SAA7134_VIDEO_PORT_CTRL4, video_out[vo][4]);
2202        video_reg = video_out[vo][5];
2203        if (vid_port_opts & SET_CLOCK_NOT_DELAYED)
2204                video_reg &= ~VP_CLK_CTRL2_DELAYED;
2205        if (vid_port_opts & SET_CLOCK_INVERTED)
2206                video_reg |= VP_CLK_CTRL1_INVERTED;
2207        saa_writeb(SAA7134_VIDEO_PORT_CTRL5, video_reg);
2208        video_reg = video_out[vo][6];
2209        if (vid_port_opts & SET_VSYNC_OFF) {
2210                video_reg &= ~VP_VS_TYPE_MASK;
2211                video_reg |= VP_VS_TYPE_OFF;
2212        }
2213        saa_writeb(SAA7134_VIDEO_PORT_CTRL6, video_reg);
2214        saa_writeb(SAA7134_VIDEO_PORT_CTRL7, video_out[vo][7]);
2215        saa_writeb(SAA7134_VIDEO_PORT_CTRL8, video_out[vo][8]);
2216
2217        /* Start videoport */
2218        saa_writeb(SAA7134_VIDEO_PORT_CTRL3, video_out[vo][3]);
2219
2220        return 0;
2221}
2222
2223int saa7134_video_init2(struct saa7134_dev *dev)
2224{
2225        /* init video hw */
2226        set_tvnorm(dev,&tvnorms[0]);
2227        video_mux(dev,0);
2228        v4l2_ctrl_handler_setup(&dev->ctrl_handler);
2229        saa7134_tvaudio_setmute(dev);
2230        saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
2231        return 0;
2232}
2233
2234void saa7134_irq_video_signalchange(struct saa7134_dev *dev)
2235{
2236        static const char *st[] = {
2237                "(no signal)", "NTSC", "PAL", "SECAM" };
2238        u32 st1,st2;
2239
2240        st1 = saa_readb(SAA7134_STATUS_VIDEO1);
2241        st2 = saa_readb(SAA7134_STATUS_VIDEO2);
2242        video_dbg("DCSDT: pll: %s, sync: %s, norm: %s\n",
2243                (st1 & 0x40) ? "not locked" : "locked",
2244                (st2 & 0x40) ? "no"         : "yes",
2245                st[st1 & 0x03]);
2246        dev->nosignal = (st1 & 0x40) || (st2 & 0x40)  || !(st2 & 0x1);
2247
2248        if (dev->nosignal) {
2249                /* no video signal -> mute audio */
2250                if (dev->ctl_automute)
2251                        dev->automute = 1;
2252                saa7134_tvaudio_setmute(dev);
2253        } else {
2254                /* wake up tvaudio audio carrier scan thread */
2255                saa7134_tvaudio_do_scan(dev);
2256        }
2257
2258        if ((st2 & 0x80) && !noninterlaced && !dev->nosignal)
2259                saa_clearb(SAA7134_SYNC_CTRL, 0x20);
2260        else
2261                saa_setb(SAA7134_SYNC_CTRL, 0x20);
2262
2263        if (dev->mops && dev->mops->signal_change)
2264                dev->mops->signal_change(dev);
2265}
2266
2267
2268void saa7134_irq_video_done(struct saa7134_dev *dev, unsigned long status)
2269{
2270        enum v4l2_field field;
2271
2272        spin_lock(&dev->slock);
2273        if (dev->video_q.curr) {
2274                field = dev->field;
2275                if (V4L2_FIELD_HAS_BOTH(field)) {
2276                        /* make sure we have seen both fields */
2277                        if ((status & 0x10) == 0x00) {
2278                                dev->video_q.curr->top_seen = 1;
2279                                goto done;
2280                        }
2281                        if (!dev->video_q.curr->top_seen)
2282                                goto done;
2283                } else if (field == V4L2_FIELD_TOP) {
2284                        if ((status & 0x10) != 0x10)
2285                                goto done;
2286                } else if (field == V4L2_FIELD_BOTTOM) {
2287                        if ((status & 0x10) != 0x00)
2288                                goto done;
2289                }
2290                saa7134_buffer_finish(dev, &dev->video_q, VB2_BUF_STATE_DONE);
2291        }
2292        saa7134_buffer_next(dev, &dev->video_q);
2293
2294 done:
2295        spin_unlock(&dev->slock);
2296}
2297