drivers/media/platform/vivid/vivid-core.h

   1 /*
   2  * vivid-core.h - core datastructures
   3  *
   4  * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
   5  *
   6  * This program is free software; you may redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  11  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  12  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  13  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  14  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  15  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  16  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  17  * SOFTWARE.
  18  */
  19
  20 #ifndef _VIVID_CORE_H_
  21 #define _VIVID_CORE_H_
  22
  23 #include <linux/fb.h>
  24 #include <media/videobuf2-v4l2.h>
  25 #include <media/v4l2-device.h>
  26 #include <media/v4l2-dev.h>
  27 #include <media/v4l2-ctrls.h>
  28 #include <media/sensor_common.h>
  29 #include "vivid-tpg.h"
  30 #include "vivid-rds-gen.h"
  31 #include "vivid-vbi-gen.h"
  32
  33 #define dprintk(dev, level, fmt, arg...) \
  34         v4l2_dbg(level, vivid_debug, &dev->v4l2_dev, fmt, ## arg)
  35
  36 /* Maximum allowed frame rate
  37  *
  38  * vivid will allow setting timeperframe in [1/FPS_MAX - FPS_MAX/1] range.
  39  *
  40  * Ideally FPS_MAX should be infinity, i.e. practically UINT_MAX, but that
  41  * might hit application errors when they manipulate these values.
  42  *
  43  * Besides, for tpf < 10ms image-generation logic should be changed, to avoid
  44  * producing frames with equal content.
  45  */
  46 #define FPS_MAX 100
  47
  48 /* The maximum number of clip rectangles */
  49 #define MAX_CLIPS  16
  50 /* The maximum number of inputs */
  51 #define MAX_INPUTS 16
  52 /* The maximum number of outputs */
  53 #define MAX_OUTPUTS 16
  54 /* The maximum up or down scaling factor is 4 */
  55 #define MAX_ZOOM  4
  56 /* The maximum image width/height are set to 4K DMT */
  57 #define MAX_WIDTH  4096
  58 #define MAX_HEIGHT 2160
  59 /* The minimum image width/height */
  60 #define MIN_WIDTH  16
  61 #define MIN_HEIGHT 16
  62 /* Metadata height max/default */
  63 #define MAX_METADATA_HEIGHT 16
  64 #define DEF_METADATA_HEIGHT 1
  65 /* The data_offset of plane 0 for the multiplanar formats */
  66 #define PLANE0_DATA_OFFSET 128
  67
  68 /* The supported TV frequency range in MHz */
  69 #define MIN_TV_FREQ (44U * 16U)
  70 #define MAX_TV_FREQ (958U * 16U)
  71
  72 /* The number of samples returned in every SDR buffer */
  73 #define SDR_CAP_SAMPLES_PER_BUF 0x4000
  74
  75 /* used by the threads to know when to resync internal counters */
  76 #define JIFFIES_PER_DAY (3600U * 24U * HZ)
  77 #define JIFFIES_RESYNC (JIFFIES_PER_DAY * (0xf0000000U / JIFFIES_PER_DAY))
  78
  79 extern const struct v4l2_rect vivid_min_rect;
  80 extern const struct v4l2_rect vivid_max_rect;
  81 extern unsigned vivid_debug;
  82
  83 struct vivid_fmt {
  84         u32     fourcc;          /* v4l2 format id */
  85         bool    is_yuv;
  86         bool    can_do_overlay;
  87         bool    is_metadata[TPG_MAX_PLANES];
  88         u8      vdownsampling[TPG_MAX_PLANES];
  89         u8      packedpixels;
  90         u32     alpha_mask;
  91         u8      planes;
  92         u8      buffers;
  93         u32     data_offset[TPG_MAX_PLANES];
  94         u32     bit_depth[TPG_MAX_PLANES];
  95 };
  96
  97 extern struct vivid_fmt vivid_formats[];
  98
  99 /* buffer for one video frame */
 100 struct vivid_buffer {
 101         /* common v4l buffer stuff -- must be first */
 102         struct vb2_v4l2_buffer vb;
 103         struct list_head        list;
 104 };
 105
 106 enum vivid_input {
 107         WEBCAM,
 108         TV,
 109         SVID,
 110         HDMI,
 111 };
 112
 113 enum vivid_signal_mode {
 114         CURRENT_DV_TIMINGS,
 115         CURRENT_STD = CURRENT_DV_TIMINGS,
 116         NO_SIGNAL,
 117         NO_LOCK,
 118         OUT_OF_RANGE,
 119         SELECTED_DV_TIMINGS,
 120         SELECTED_STD = SELECTED_DV_TIMINGS,
 121         CYCLE_DV_TIMINGS,
 122         CYCLE_STD = CYCLE_DV_TIMINGS,
 123         CUSTOM_DV_TIMINGS,
 124 };
 125
 126 enum vivid_colorspace {
 127         VIVID_CS_170M,
 128         VIVID_CS_709,
 129         VIVID_CS_SRGB,
 130         VIVID_CS_ADOBERGB,
 131         VIVID_CS_2020,
 132         VIVID_CS_DCI_P3,
 133         VIVID_CS_240M,
 134         VIVID_CS_SYS_M,
 135         VIVID_CS_SYS_BG,
 136 };
 137
 138 #define VIVID_INVALID_SIGNAL(mode) \
 139         ((mode) == NO_SIGNAL || (mode) == NO_LOCK || (mode) == OUT_OF_RANGE)
 140
 141 struct vivid_dev {
 142         unsigned                        inst;
 143         struct v4l2_device              v4l2_dev;
 144         struct v4l2_ctrl_handler        ctrl_hdl_user_gen;
 145         struct v4l2_ctrl_handler        ctrl_hdl_user_vid;
 146         struct v4l2_ctrl_handler        ctrl_hdl_user_aud;
 147         struct v4l2_ctrl_handler        ctrl_hdl_streaming;
 148         struct v4l2_ctrl_handler        ctrl_hdl_sdtv_cap;
 149         struct v4l2_ctrl_handler        ctrl_hdl_loop_cap;
 150         struct video_device             vid_cap_dev;
 151         struct v4l2_ctrl_handler        ctrl_hdl_vid_cap;
 152         struct video_device             vid_out_dev;
 153         struct v4l2_ctrl_handler        ctrl_hdl_vid_out;
 154         struct video_device             vbi_cap_dev;
 155         struct v4l2_ctrl_handler        ctrl_hdl_vbi_cap;
 156         struct video_device             vbi_out_dev;
 157         struct v4l2_ctrl_handler        ctrl_hdl_vbi_out;
 158         struct video_device             radio_rx_dev;
 159         struct v4l2_ctrl_handler        ctrl_hdl_radio_rx;
 160         struct video_device             radio_tx_dev;
 161         struct v4l2_ctrl_handler        ctrl_hdl_radio_tx;
 162         struct video_device             sdr_cap_dev;
 163         struct v4l2_ctrl_handler        ctrl_hdl_sdr_cap;
 164         spinlock_t                      slock;
 165         struct mutex                    mutex;
 166         struct mutex                    mutex_framerate;
 167
 168         /* capabilities */
 169         u32                             vid_cap_caps;
 170         u32                             vid_out_caps;
 171         u32                             vbi_cap_caps;
 172         u32                             vbi_out_caps;
 173         u32                             sdr_cap_caps;
 174         u32                             radio_rx_caps;
 175         u32                             radio_tx_caps;
 176
 177         /* supported features */
 178         bool                            multiplanar;
 179         unsigned                        num_inputs;
 180         u8                              input_type[MAX_INPUTS];
 181         u8                              input_name_counter[MAX_INPUTS];
 182         unsigned                        num_outputs;
 183         u8                              output_type[MAX_OUTPUTS];
 184         u8                              output_name_counter[MAX_OUTPUTS];
 185         bool                            has_audio_inputs;
 186         bool                            has_audio_outputs;
 187         bool                            has_vid_cap;
 188         bool                            has_vid_out;
 189         bool                            has_vbi_cap;
 190         bool                            has_raw_vbi_cap;
 191         bool                            has_sliced_vbi_cap;
 192         bool                            has_vbi_out;
 193         bool                            has_raw_vbi_out;
 194         bool                            has_sliced_vbi_out;
 195         bool                            has_radio_rx;
 196         bool                            has_radio_tx;
 197         bool                            has_sdr_cap;
 198         bool                            has_fb;
 199
 200         bool                            can_loop_video;
 201
 202         /* controls */
 203         struct v4l2_ctrl                *brightness;
 204         struct v4l2_ctrl                *contrast;
 205         struct v4l2_ctrl                *saturation;
 206         struct v4l2_ctrl                *hue;
 207         struct {
 208                 /* autogain/gain cluster */
 209                 struct v4l2_ctrl        *autogain;
 210                 struct v4l2_ctrl        *gain;
 211         };
 212         struct v4l2_ctrl                *volume;
 213         struct v4l2_ctrl                *mute;
 214         struct v4l2_ctrl                *alpha;
 215         struct v4l2_ctrl                *button;
 216         struct v4l2_ctrl                *boolean;
 217         struct v4l2_ctrl                *int32;
 218         struct v4l2_ctrl                *int64;
 219         struct v4l2_ctrl                *menu;
 220         struct v4l2_ctrl                *string;
 221         struct v4l2_ctrl                *bitmask;
 222         struct v4l2_ctrl                *int_menu;
 223         struct v4l2_ctrl                *test_pattern;
 224         struct v4l2_ctrl                *colorspace;
 225         struct v4l2_ctrl                *rgb_range_cap;
 226         struct v4l2_ctrl                *real_rgb_range_cap;
 227         struct v4l2_ctrl                *framelength;
 228         struct v4l2_ctrl                *ctrl_signalprops;
 229         struct v4l2_ctrl                *ctrl_imageprops;
 230         struct v4l2_ctrl                *ctrl_controlprops;
 231         struct v4l2_ctrl                *ctrl_dvtimings;
 232         struct v4l2_ctrl                *ctrl_sensormodes;
 233         struct {
 234                 /* std_signal_mode/standard cluster */
 235                 struct v4l2_ctrl        *ctrl_std_signal_mode;
 236                 struct v4l2_ctrl        *ctrl_standard;
 237         };
 238         struct {
 239                 /* dv_timings_signal_mode/timings cluster */
 240                 struct v4l2_ctrl        *ctrl_dv_timings_signal_mode;
 241                 struct v4l2_ctrl        *ctrl_dv_timings;
 242         };
 243         struct v4l2_ctrl                *ctrl_has_crop_cap;
 244         struct v4l2_ctrl                *ctrl_has_compose_cap;
 245         struct v4l2_ctrl                *ctrl_has_scaler_cap;
 246         struct v4l2_ctrl                *ctrl_has_crop_out;
 247         struct v4l2_ctrl                *ctrl_has_compose_out;
 248         struct v4l2_ctrl                *ctrl_has_scaler_out;
 249         struct v4l2_ctrl                *ctrl_tx_mode;
 250         struct v4l2_ctrl                *ctrl_tx_rgb_range;
 251
 252         struct v4l2_ctrl                *radio_tx_rds_pi;
 253         struct v4l2_ctrl                *radio_tx_rds_pty;
 254         struct v4l2_ctrl                *radio_tx_rds_mono_stereo;
 255         struct v4l2_ctrl                *radio_tx_rds_art_head;
 256         struct v4l2_ctrl                *radio_tx_rds_compressed;
 257         struct v4l2_ctrl                *radio_tx_rds_dyn_pty;
 258         struct v4l2_ctrl                *radio_tx_rds_ta;
 259         struct v4l2_ctrl                *radio_tx_rds_tp;
 260         struct v4l2_ctrl                *radio_tx_rds_ms;
 261         struct v4l2_ctrl                *radio_tx_rds_psname;
 262         struct v4l2_ctrl                *radio_tx_rds_radiotext;
 263
 264         struct v4l2_ctrl                *radio_rx_rds_pty;
 265         struct v4l2_ctrl                *radio_rx_rds_ta;
 266         struct v4l2_ctrl                *radio_rx_rds_tp;
 267         struct v4l2_ctrl                *radio_rx_rds_ms;
 268         struct v4l2_ctrl                *radio_rx_rds_psname;
 269         struct v4l2_ctrl                *radio_rx_rds_radiotext;
 270
 271         unsigned                        input_brightness[MAX_INPUTS];
 272         unsigned                        osd_mode;
 273         unsigned                        button_pressed;
 274         bool                            sensor_hflip;
 275         bool                            sensor_vflip;
 276         bool                            hflip;
 277         bool                            vflip;
 278         bool                            vbi_cap_interlaced;
 279         bool                            loop_video;
 280
 281         /* Framebuffer */
 282         unsigned long                   video_pbase;
 283         void                            *video_vbase;
 284         u32                             video_buffer_size;
 285         int                             display_width;
 286         int                             display_height;
 287         int                             display_byte_stride;
 288         int                             bits_per_pixel;
 289         int                             bytes_per_pixel;
 290         struct fb_info                  fb_info;
 291         struct fb_var_screeninfo        fb_defined;
 292         struct fb_fix_screeninfo        fb_fix;
 293
 294         /* Error injection */
 295         bool                            queue_setup_error;
 296         bool                            buf_prepare_error;
 297         bool                            start_streaming_error;
 298         bool                            dqbuf_error;
 299         bool                            seq_wrap;
 300         bool                            time_wrap;
 301         __kernel_time_t                 time_wrap_offset;
 302         unsigned                        perc_dropped_buffers;
 303         enum vivid_signal_mode          std_signal_mode;
 304         unsigned                        query_std_last;
 305         v4l2_std_id                     query_std;
 306         enum tpg_video_aspect           std_aspect_ratio;
 307
 308         enum vivid_signal_mode          dv_timings_signal_mode;
 309         char                            **query_dv_timings_qmenu;
 310         unsigned                        query_dv_timings_size;
 311         unsigned                        query_dv_timings_last;
 312         unsigned                        query_dv_timings;
 313         enum tpg_video_aspect           dv_timings_aspect_ratio;
 314
 315         /* Input */
 316         unsigned                        input;
 317         v4l2_std_id                     std_cap;
 318         struct v4l2_dv_timings          dv_timings_cap;
 319         u32                             service_set_cap;
 320         struct vivid_vbi_gen_data       vbi_gen;
 321         u8                              *edid;
 322         unsigned                        edid_blocks;
 323         unsigned                        edid_max_blocks;
 324         unsigned                        webcam_size_idx;
 325         unsigned                        webcam_ival_idx;
 326         unsigned                        tv_freq;
 327         unsigned                        tv_audmode;
 328         unsigned                        tv_field_cap;
 329         unsigned                        tv_audio_input;
 330
 331         /* Capture Overlay */
 332         struct v4l2_framebuffer         fb_cap;
 333         struct v4l2_fh                  *overlay_cap_owner;
 334         void                            *fb_vbase_cap;
 335         int                             overlay_cap_top, overlay_cap_left;
 336         enum v4l2_field                 overlay_cap_field;
 337         void                            *bitmap_cap;
 338         struct v4l2_clip                clips_cap[MAX_CLIPS];
 339         struct v4l2_clip                try_clips_cap[MAX_CLIPS];
 340         unsigned                        clipcount_cap;
 341
 342         /* Output */
 343         unsigned                        output;
 344         v4l2_std_id                     std_out;
 345         struct v4l2_dv_timings          dv_timings_out;
 346         u32                             colorspace_out;
 347         u32                             ycbcr_enc_out;
 348         u32                             quantization_out;
 349         u32                             xfer_func_out;
 350         u32                             service_set_out;
 351         unsigned                        bytesperline_out[TPG_MAX_PLANES];
 352         unsigned                        height_out[TPG_MAX_PLANES];
 353         unsigned                        tv_field_out;
 354         unsigned                        tv_audio_output;
 355         bool                            vbi_out_have_wss;
 356         u8                              vbi_out_wss[2];
 357         bool                            vbi_out_have_cc[2];
 358         u8                              vbi_out_cc[2][2];
 359         bool                            dvi_d_out;
 360         u8                              *scaled_line;
 361         u8                              *blended_line;
 362         unsigned                        cur_scaled_line;
 363
 364         /* Output Overlay */
 365         void                            *fb_vbase_out;
 366         bool                            overlay_out_enabled;
 367         int                             overlay_out_top, overlay_out_left;
 368         void                            *bitmap_out;
 369         struct v4l2_clip                clips_out[MAX_CLIPS];
 370         struct v4l2_clip                try_clips_out[MAX_CLIPS];
 371         unsigned                        clipcount_out;
 372         unsigned                        fbuf_out_flags;
 373         u32                             chromakey_out;
 374         u8                              global_alpha_out;
 375
 376         /* video capture */
 377         struct tpg_data                 tpg;
 378         unsigned                        ms_vid_cap;
 379         bool                            must_blank[VIDEO_MAX_FRAME];
 380
 381         struct vivid_fmt                *fmt_cap;
 382         struct v4l2_fract               timeperframe_vid_cap;
 383         enum v4l2_field                 field_cap;
 384         struct v4l2_rect                src_rect;
 385         struct v4l2_rect                fmt_cap_rect;
 386         struct v4l2_rect                crop_cap;
 387         struct v4l2_rect                compose_cap;
 388         struct v4l2_rect                crop_bounds_cap;
 389         struct vb2_queue                vb_vid_cap_q;
 390         struct list_head                vid_cap_active;
 391         struct vb2_queue                vb_vbi_cap_q;
 392         struct list_head                vbi_cap_active;
 393
 394         /* thread for generating video capture stream */
 395         struct task_struct              *kthread_vid_cap;
 396         unsigned long                   jiffies_vid_cap;
 397         u32                             cap_seq_offset;
 398         u32                             cap_seq_count;
 399         bool                            cap_seq_resync;
 400         u32                             vid_cap_seq_start;
 401         u32                             vid_cap_seq_count;
 402         bool                            vid_cap_streaming;
 403         u32                             vbi_cap_seq_start;
 404         u32                             vbi_cap_seq_count;
 405         bool                            vbi_cap_streaming;
 406         bool                            stream_sliced_vbi_cap;
 407         u32                             embedded_data_height;
 408         u32                             fmt_out_metadata_height;
 409
 410         /* added for NV sensor emulation */
 411         struct sensor_properties        sensor_props;
 412
 413         /* video output */
 414         struct vivid_fmt                *fmt_out;
 415         struct v4l2_fract               timeperframe_vid_out;
 416         enum v4l2_field                 field_out;
 417         struct v4l2_rect                sink_rect;
 418         struct v4l2_rect                fmt_out_rect;
 419         struct v4l2_rect                crop_out;
 420         struct v4l2_rect                compose_out;
 421         struct v4l2_rect                compose_bounds_out;
 422         struct vb2_queue                vb_vid_out_q;
 423         struct list_head                vid_out_active;
 424         struct vb2_queue                vb_vbi_out_q;
 425         struct list_head                vbi_out_active;
 426
 427         /* video loop precalculated rectangles */
 428
 429         /*
 430          * Intersection between what the output side composes and the capture side
 431          * crops. I.e., what actually needs to be copied from the output buffer to
 432          * the capture buffer.
 433          */
 434         struct v4l2_rect                loop_vid_copy;
 435         /* The part of the output buffer that (after scaling) corresponds to loop_vid_copy. */
 436         struct v4l2_rect                loop_vid_out;
 437         /* The part of the capture buffer that (after scaling) corresponds to loop_vid_copy. */
 438         struct v4l2_rect                loop_vid_cap;
 439         /*
 440          * The intersection of the framebuffer, the overlay output window and
 441          * loop_vid_copy. I.e., the part of the framebuffer that actually should be
 442          * blended with the compose_out rectangle. This uses the framebuffer origin.
 443          */
 444         struct v4l2_rect                loop_fb_copy;
 445         /* The same as loop_fb_copy but with compose_out origin. */
 446         struct v4l2_rect                loop_vid_overlay;
 447         /*
 448          * The part of the capture buffer that (after scaling) corresponds
 449          * to loop_vid_overlay.
 450          */
 451         struct v4l2_rect                loop_vid_overlay_cap;
 452
 453         /* thread for generating video output stream */
 454         struct task_struct              *kthread_vid_out;
 455         unsigned long                   jiffies_vid_out;
 456         u32                             out_seq_offset;
 457         u32                             out_seq_count;
 458         bool                            out_seq_resync;
 459         u32                             vid_out_seq_start;
 460         u32                             vid_out_seq_count;
 461         bool                            vid_out_streaming;
 462         u32                             vbi_out_seq_start;
 463         u32                             vbi_out_seq_count;
 464         bool                            vbi_out_streaming;
 465         bool                            stream_sliced_vbi_out;
 466
 467         /* SDR capture */
 468         struct vb2_queue                vb_sdr_cap_q;
 469         struct list_head                sdr_cap_active;
 470         u32                             sdr_pixelformat; /* v4l2 format id */
 471         unsigned                        sdr_buffersize;
 472         unsigned                        sdr_adc_freq;
 473         unsigned                        sdr_fm_freq;
 474         unsigned                        sdr_fm_deviation;
 475         int                             sdr_fixp_src_phase;
 476         int                             sdr_fixp_mod_phase;
 477
 478         bool                            tstamp_src_is_soe;
 479         bool                            has_crop_cap;
 480         bool                            has_compose_cap;
 481         bool                            has_scaler_cap;
 482         bool                            has_crop_out;
 483         bool                            has_compose_out;
 484         bool                            has_scaler_out;
 485
 486         /* thread for generating SDR stream */
 487         struct task_struct              *kthread_sdr_cap;
 488         unsigned long                   jiffies_sdr_cap;
 489         u32                             sdr_cap_seq_offset;
 490         u32                             sdr_cap_seq_count;
 491         bool                            sdr_cap_seq_resync;
 492
 493         /* RDS generator */
 494         struct vivid_rds_gen            rds_gen;
 495
 496         /* Radio receiver */
 497         unsigned                        radio_rx_freq;
 498         unsigned                        radio_rx_audmode;
 499         int                             radio_rx_sig_qual;
 500         unsigned                        radio_rx_hw_seek_mode;
 501         bool                            radio_rx_hw_seek_prog_lim;
 502         bool                            radio_rx_rds_controls;
 503         bool                            radio_rx_rds_enabled;
 504         unsigned                        radio_rx_rds_use_alternates;
 505         unsigned                        radio_rx_rds_last_block;
 506         struct v4l2_fh                  *radio_rx_rds_owner;
 507
 508         /* Radio transmitter */
 509         unsigned                        radio_tx_freq;
 510         unsigned                        radio_tx_subchans;
 511         bool                            radio_tx_rds_controls;
 512         unsigned                        radio_tx_rds_last_block;
 513         struct v4l2_fh                  *radio_tx_rds_owner;
 514
 515         /* Shared between radio receiver and transmitter */
 516         bool                            radio_rds_loop;
 517         struct timespec                 radio_rds_init_ts;
 518 };
 519
 520 static inline bool vivid_is_webcam(const struct vivid_dev *dev)
 521 {
 522         return dev->input_type[dev->input] == WEBCAM;
 523 }
 524
 525 static inline bool vivid_is_tv_cap(const struct vivid_dev *dev)
 526 {
 527         return dev->input_type[dev->input] == TV;
 528 }
 529
 530 static inline bool vivid_is_svid_cap(const struct vivid_dev *dev)
 531 {
 532         return dev->input_type[dev->input] == SVID;
 533 }
 534
 535 static inline bool vivid_is_hdmi_cap(const struct vivid_dev *dev)
 536 {
 537         return dev->input_type[dev->input] == HDMI;
 538 }
 539
 540 static inline bool vivid_is_sdtv_cap(const struct vivid_dev *dev)
 541 {
 542         return vivid_is_tv_cap(dev) || vivid_is_svid_cap(dev);
 543 }
 544
 545 static inline bool vivid_is_svid_out(const struct vivid_dev *dev)
 546 {
 547         return dev->output_type[dev->output] == SVID;
 548 }
 549
 550 static inline bool vivid_is_hdmi_out(const struct vivid_dev *dev)
 551 {
 552         return dev->output_type[dev->output] == HDMI;
 553 }
 554
 555 #endif