// SPDX-License-Identifier: GPL-2.0-only
/*
 * vivid-vid-common.c - common video support functions.
 *
 * Copyright 2014 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
 */

#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/videodev2.h>
#include <linux/v4l2-dv-timings.h>
#include <media/v4l2-common.h>
#include <media/v4l2-event.h>
#include <media/v4l2-dv-timings.h>

#include "vivid-core.h"
#include "vivid-vid-common.h"

const struct v4l2_dv_timings_cap vivid_dv_timings_cap = {
        .type = V4L2_DV_BT_656_1120,
        /* keep this initialization for compatibility with GCC < 4.4.6 */
        .reserved = { 0 },
        V4L2_INIT_BT_TIMINGS(16, MAX_WIDTH, 16, MAX_HEIGHT, 14000000, 775000000,
                V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT |
                V4L2_DV_BT_STD_CVT | V4L2_DV_BT_STD_GTF,
                V4L2_DV_BT_CAP_PROGRESSIVE | V4L2_DV_BT_CAP_INTERLACED)
};

/* ------------------------------------------------------------------
        Basic structures
   ------------------------------------------------------------------*/

struct vivid_fmt vivid_formats[] = {
        {
                .fourcc   = V4L2_PIX_FMT_YUYV,
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 1,
                .buffers = 1,
                .data_offset = { PLANE0_DATA_OFFSET },
        },
        {
                .fourcc   = V4L2_PIX_FMT_UYVY,
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_YVYU,
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_VYUY,
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_YUV422P,
                .vdownsampling = { 1, 1, 1 },
                .bit_depth = { 8, 4, 4 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 3,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_YUV420,
                .vdownsampling = { 1, 2, 2 },
                .bit_depth = { 8, 4, 4 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 3,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_YVU420,
                .vdownsampling = { 1, 2, 2 },
                .bit_depth = { 8, 4, 4 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 3,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_NV12,
                .vdownsampling = { 1, 2 },
                .bit_depth = { 8, 8 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 2,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_NV21,
                .vdownsampling = { 1, 2 },
                .bit_depth = { 8, 8 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 2,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_NV16,
                .vdownsampling = { 1, 1 },
                .bit_depth = { 8, 8 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 2,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_NV61,
                .vdownsampling = { 1, 1 },
                .bit_depth = { 8, 8 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 2,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_NV24,
                .vdownsampling = { 1, 1 },
                .bit_depth = { 8, 16 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 2,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_NV42,
                .vdownsampling = { 1, 1 },
                .bit_depth = { 8, 16 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 2,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_YUV555, /* uuuvvvvv ayyyyyuu */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .alpha_mask = 0x8000,
        },
        {
                .fourcc   = V4L2_PIX_FMT_YUV565, /* uuuvvvvv yyyyyuuu */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_YUV444, /* uuuuvvvv aaaayyyy */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .alpha_mask = 0xf000,
        },
        {
                .fourcc   = V4L2_PIX_FMT_YUV32, /* ayuv */
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
                .alpha_mask = 0x000000ff,
        },
        {
                .fourcc   = V4L2_PIX_FMT_AYUV32,
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
                .alpha_mask = 0x000000ff,
        },
        {
                .fourcc   = V4L2_PIX_FMT_XYUV32,
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_VUYA32,
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
                .alpha_mask = 0xff000000,
        },
        {
                .fourcc   = V4L2_PIX_FMT_VUYX32,
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_YUVA32,
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
                .alpha_mask = 0xff000000,
        },
        {
                .fourcc   = V4L2_PIX_FMT_YUVX32,
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_GREY,
                .vdownsampling = { 1 },
                .bit_depth = { 8 },
                .color_enc = TGP_COLOR_ENC_LUMA,
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_Y10,
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .color_enc = TGP_COLOR_ENC_LUMA,
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_Y12,
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .color_enc = TGP_COLOR_ENC_LUMA,
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_Y16,
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .color_enc = TGP_COLOR_ENC_LUMA,
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_Y16_BE,
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .color_enc = TGP_COLOR_ENC_LUMA,
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_RGB332, /* rrrgggbb */
                .vdownsampling = { 1 },
                .bit_depth = { 8 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .can_do_overlay = true,
        },
        {
                .fourcc   = V4L2_PIX_FMT_RGB565X, /* rrrrrggg gggbbbbb */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .can_do_overlay = true,
        },
        {
                .fourcc   = V4L2_PIX_FMT_RGB444, /* ggggbbbb xxxxrrrr */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_XRGB444, /* ggggbbbb xxxxrrrr */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_ARGB444, /* ggggbbbb aaaarrrr */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .alpha_mask = 0x00f0,
        },
        {
                .fourcc   = V4L2_PIX_FMT_RGBX444, /* bbbbxxxx rrrrgggg */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_RGBA444, /* bbbbaaaa rrrrgggg */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .alpha_mask = 0x00f0,
        },
        {
                .fourcc   = V4L2_PIX_FMT_XBGR444, /* ggggrrrr xxxxbbbb */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_ABGR444, /* ggggrrrr aaaabbbb */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .alpha_mask = 0x00f0,
        },
        {
                .fourcc   = V4L2_PIX_FMT_BGRX444, /* rrrrxxxx bbbbgggg */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_BGRA444, /* rrrraaaa bbbbgggg  */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .alpha_mask = 0x00f0,
        },
        {
                .fourcc   = V4L2_PIX_FMT_RGB555, /* gggbbbbb xrrrrrgg */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .can_do_overlay = true,
        },
        {
                .fourcc   = V4L2_PIX_FMT_XRGB555, /* gggbbbbb xrrrrrgg */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .can_do_overlay = true,
        },
        {
                .fourcc   = V4L2_PIX_FMT_ARGB555, /* gggbbbbb arrrrrgg */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .can_do_overlay = true,
                .alpha_mask = 0x8000,
        },
        {
                .fourcc   = V4L2_PIX_FMT_RGBX555, /* ggbbbbbx rrrrrggg */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .can_do_overlay = true,
        },
        {
                .fourcc   = V4L2_PIX_FMT_RGBA555, /* ggbbbbba rrrrrggg */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .can_do_overlay = true,
                .alpha_mask = 0x8000,
        },
        {
                .fourcc   = V4L2_PIX_FMT_XBGR555, /* gggrrrrr xbbbbbgg */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .can_do_overlay = true,
        },
        {
                .fourcc   = V4L2_PIX_FMT_ABGR555, /* gggrrrrr abbbbbgg */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .can_do_overlay = true,
                .alpha_mask = 0x8000,
        },
        {
                .fourcc   = V4L2_PIX_FMT_BGRX555, /* ggrrrrrx bbbbbggg */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .can_do_overlay = true,
        },
        {
                .fourcc   = V4L2_PIX_FMT_BGRA555, /* ggrrrrra bbbbbggg */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .can_do_overlay = true,
                .alpha_mask = 0x8000,
        },
        {
                .fourcc   = V4L2_PIX_FMT_RGB555X, /* xrrrrrgg gggbbbbb */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_XRGB555X, /* xrrrrrgg gggbbbbb */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_ARGB555X, /* arrrrrgg gggbbbbb */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
                .alpha_mask = 0x0080,
        },
        {
                .fourcc   = V4L2_PIX_FMT_RGB24, /* rgb */
                .vdownsampling = { 1 },
                .bit_depth = { 24 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_BGR24, /* bgr */
                .vdownsampling = { 1 },
                .bit_depth = { 24 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_BGR666, /* bbbbbbgg ggggrrrr rrxxxxxx */
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_RGB32, /* xrgb */
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_BGR32, /* bgrx */
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_XRGB32, /* xrgb */
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_XBGR32, /* bgrx */
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_ARGB32, /* argb */
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
                .alpha_mask = 0x000000ff,
        },
        {
                .fourcc   = V4L2_PIX_FMT_ABGR32, /* bgra */
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
                .alpha_mask = 0xff000000,
        },
        {
                .fourcc   = V4L2_PIX_FMT_RGBX32, /* rgbx */
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_BGRX32, /* xbgr */
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_RGBA32, /* rgba */
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
                .alpha_mask = 0x000000ff,
        },
        {
                .fourcc   = V4L2_PIX_FMT_BGRA32, /* abgr */
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
                .alpha_mask = 0xff000000,
        },
        {
                .fourcc   = V4L2_PIX_FMT_SBGGR8, /* Bayer BG/GR */
                .vdownsampling = { 1 },
                .bit_depth = { 8 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_SGBRG8, /* Bayer GB/RG */
                .vdownsampling = { 1 },
                .bit_depth = { 8 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_SGRBG8, /* Bayer GR/BG */
                .vdownsampling = { 1 },
                .bit_depth = { 8 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_SRGGB8, /* Bayer RG/GB */
                .vdownsampling = { 1 },
                .bit_depth = { 8 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_SBGGR10, /* Bayer BG/GR */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_SGBRG10, /* Bayer GB/RG */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_SGRBG10, /* Bayer GR/BG */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_SRGGB10, /* Bayer RG/GB */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_SBGGR12, /* Bayer BG/GR */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_SGBRG12, /* Bayer GB/RG */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_SGRBG12, /* Bayer GR/BG */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_SRGGB12, /* Bayer RG/GB */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_SBGGR16, /* Bayer BG/GR */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_SGBRG16, /* Bayer GB/RG */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_SGRBG16, /* Bayer GR/BG */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_SRGGB16, /* Bayer RG/GB */
                .vdownsampling = { 1 },
                .bit_depth = { 16 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_HSV24, /* HSV 24bits */
                .color_enc = TGP_COLOR_ENC_HSV,
                .vdownsampling = { 1 },
                .bit_depth = { 24 },
                .planes   = 1,
                .buffers = 1,
        },
        {
                .fourcc   = V4L2_PIX_FMT_HSV32, /* HSV 32bits */
                .color_enc = TGP_COLOR_ENC_HSV,
                .vdownsampling = { 1 },
                .bit_depth = { 32 },
                .planes   = 1,
                .buffers = 1,
        },

        /* Multiplanar formats */

        {
                .fourcc   = V4L2_PIX_FMT_NV16M,
                .vdownsampling = { 1, 1 },
                .bit_depth = { 8, 8 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 2,
                .buffers = 2,
                .data_offset = { PLANE0_DATA_OFFSET, 0 },
        },
        {
                .fourcc   = V4L2_PIX_FMT_NV61M,
                .vdownsampling = { 1, 1 },
                .bit_depth = { 8, 8 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 2,
                .buffers = 2,
                .data_offset = { 0, PLANE0_DATA_OFFSET },
        },
        {
                .fourcc   = V4L2_PIX_FMT_YUV420M,
                .vdownsampling = { 1, 2, 2 },
                .bit_depth = { 8, 4, 4 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 3,
                .buffers = 3,
        },
        {
                .fourcc   = V4L2_PIX_FMT_YVU420M,
                .vdownsampling = { 1, 2, 2 },
                .bit_depth = { 8, 4, 4 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 3,
                .buffers = 3,
        },
        {
                .fourcc   = V4L2_PIX_FMT_NV12M,
                .vdownsampling = { 1, 2 },
                .bit_depth = { 8, 8 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 2,
                .buffers = 2,
        },
        {
                .fourcc   = V4L2_PIX_FMT_NV21M,
                .vdownsampling = { 1, 2 },
                .bit_depth = { 8, 8 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 2,
                .buffers = 2,
        },
        {
                .fourcc   = V4L2_PIX_FMT_YUV422M,
                .vdownsampling = { 1, 1, 1 },
                .bit_depth = { 8, 4, 4 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 3,
                .buffers = 3,
        },
        {
                .fourcc   = V4L2_PIX_FMT_YVU422M,
                .vdownsampling = { 1, 1, 1 },
                .bit_depth = { 8, 4, 4 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 3,
                .buffers = 3,
        },
        {
                .fourcc   = V4L2_PIX_FMT_YUV444M,
                .vdownsampling = { 1, 1, 1 },
                .bit_depth = { 8, 8, 8 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 3,
                .buffers = 3,
        },
        {
                .fourcc   = V4L2_PIX_FMT_YVU444M,
                .vdownsampling = { 1, 1, 1 },
                .bit_depth = { 8, 8, 8 },
                .color_enc = TGP_COLOR_ENC_YCBCR,
                .planes   = 3,
                .buffers = 3,
        },
};

/* There are this many multiplanar formats in the list */
#define VIVID_MPLANAR_FORMATS 10

const struct vivid_fmt *vivid_get_format(struct vivid_dev *dev, u32 pixelformat)
{
        const struct vivid_fmt *fmt;
        unsigned k;

        for (k = 0; k < ARRAY_SIZE(vivid_formats); k++) {
                fmt = &vivid_formats[k];
                if (fmt->fourcc == pixelformat)
                        if (fmt->buffers == 1 || dev->multiplanar)
                                return fmt;
        }

        return NULL;
}

struct vivid_dev *vivid_output_is_connected_to(struct vivid_dev *dev)
{
        struct vivid_dev *input_inst = dev->output_to_input_instance[dev->output];

        if (!input_inst)
                return NULL;
        if (input_inst->input != dev->output_to_input_index[dev->output])
                return NULL;
        return input_inst;
}

struct vivid_dev *vivid_input_is_connected_to(struct vivid_dev *dev)
{
        s32 connected_output = dev->input_is_connected_to_output[dev->input];

        if (connected_output < FIXED_MENU_ITEMS)
                return NULL;
        struct vivid_dev *output_inst = NULL;

        if (vivid_is_hdmi_cap(dev)) {
                output_inst = vivid_ctrl_hdmi_to_output_instance[connected_output];
                if (vivid_ctrl_hdmi_to_output_index[connected_output] != output_inst->output)
                        return NULL;
                return output_inst;
        } else if (vivid_is_svid_cap(dev)) {
                output_inst = vivid_ctrl_svid_to_output_instance[connected_output];
                if (vivid_ctrl_svid_to_output_index[connected_output] != output_inst->output)
                        return NULL;
                return output_inst;
        } else {
                return NULL;
        }
        return output_inst;
}

bool vivid_vid_can_loop(struct vivid_dev *dev)
{
        struct vivid_dev *output_inst = vivid_input_is_connected_to(dev);

        if (!output_inst)
                return false;
        if (!vb2_is_streaming(&output_inst->vb_vid_out_q))
                return false;
        if (dev->src_rect.width != output_inst->sink_rect.width ||
            dev->src_rect.height != output_inst->sink_rect.height)
                return false;
        if (dev->fmt_cap->fourcc != output_inst->fmt_out->fourcc)
                return false;
        if (dev->field_cap != output_inst->field_out)
                return false;
        /*
         * While this can be supported, it is just too much work
         * to actually implement.
         */
        if (dev->field_cap == V4L2_FIELD_SEQ_TB ||
            dev->field_cap == V4L2_FIELD_SEQ_BT)
                return false;
        if (vivid_is_hdmi_cap(dev))
                return true;
        if (!(dev->std_cap[dev->input] & V4L2_STD_525_60) !=
            !(output_inst->std_out & V4L2_STD_525_60))
                return false;
        return true;
}

void vivid_send_input_source_change(struct vivid_dev *dev, unsigned int input_index)
{
        struct v4l2_event ev = {
                .type = V4L2_EVENT_SOURCE_CHANGE,
                .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
        };
        ev.id = input_index;

        if (video_is_registered(&dev->vid_cap_dev) && dev->has_vid_cap)
                v4l2_event_queue(&dev->vid_cap_dev, &ev);
        if (dev->input_type[input_index] == TV || dev->input_type[input_index] == SVID)
                if (video_is_registered(&dev->vbi_cap_dev) && dev->has_vbi_cap)
                        v4l2_event_queue(&dev->vbi_cap_dev, &ev);
}

void vivid_send_source_change(struct vivid_dev *dev, unsigned int type)
{
        for (int i = 0; i < dev->num_inputs; i++)
                if (dev->input_type[i] == type)
                        vivid_send_input_source_change(dev, i);
}

/*
 * Conversion function that converts a single-planar format to a
 * single-plane multiplanar format.
 */
void fmt_sp2mp(const struct v4l2_format *sp_fmt, struct v4l2_format *mp_fmt)
{
        struct v4l2_pix_format_mplane *mp = &mp_fmt->fmt.pix_mp;
        struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0];
        const struct v4l2_pix_format *pix = &sp_fmt->fmt.pix;
        bool is_out = sp_fmt->type == V4L2_BUF_TYPE_VIDEO_OUTPUT;

        memset(mp->reserved, 0, sizeof(mp->reserved));
        mp_fmt->type = is_out ? V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE :
                           V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
        mp->width = pix->width;
        mp->height = pix->height;
        mp->pixelformat = pix->pixelformat;
        mp->field = pix->field;
        mp->colorspace = pix->colorspace;
        mp->xfer_func = pix->xfer_func;
        /* Also copies hsv_enc */
        mp->ycbcr_enc = pix->ycbcr_enc;
        mp->quantization = pix->quantization;
        mp->num_planes = 1;
        mp->flags = pix->flags;
        ppix->sizeimage = pix->sizeimage;
        ppix->bytesperline = pix->bytesperline;
        memset(ppix->reserved, 0, sizeof(ppix->reserved));
}

int fmt_sp2mp_func(struct file *file, void *priv,
                struct v4l2_format *f, fmtfunc func)
{
        struct v4l2_format fmt;
        struct v4l2_pix_format_mplane *mp = &fmt.fmt.pix_mp;
        struct v4l2_plane_pix_format *ppix = &mp->plane_fmt[0];
        struct v4l2_pix_format *pix = &f->fmt.pix;
        int ret;

        /* Converts to a mplane format */
        fmt_sp2mp(f, &fmt);
        /* Passes it to the generic mplane format function */
        ret = func(file, priv, &fmt);
        /* Copies back the mplane data to the single plane format */
        pix->width = mp->width;
        pix->height = mp->height;
        pix->pixelformat = mp->pixelformat;
        pix->field = mp->field;
        pix->colorspace = mp->colorspace;
        pix->xfer_func = mp->xfer_func;
        /* Also copies hsv_enc */
        pix->ycbcr_enc = mp->ycbcr_enc;
        pix->quantization = mp->quantization;
        pix->sizeimage = ppix->sizeimage;
        pix->bytesperline = ppix->bytesperline;
        pix->flags = mp->flags;
        return ret;
}

int vivid_vid_adjust_sel(unsigned flags, struct v4l2_rect *r)
{
        unsigned w = r->width;
        unsigned h = r->height;

        /* sanitize w and h in case someone passes ~0 as the value */
        w &= 0xffff;
        h &= 0xffff;
        if (!(flags & V4L2_SEL_FLAG_LE)) {
                w++;
                h++;
                if (w < 2)
                        w = 2;
                if (h < 2)
                        h = 2;
        }
        if (!(flags & V4L2_SEL_FLAG_GE)) {
                if (w > MAX_WIDTH)
                        w = MAX_WIDTH;
                if (h > MAX_HEIGHT)
                        h = MAX_HEIGHT;
        }
        w = w & ~1;
        h = h & ~1;
        if (w < 2 || h < 2)
                return -ERANGE;
        if (w > MAX_WIDTH || h > MAX_HEIGHT)
                return -ERANGE;
        if (r->top < 0)
                r->top = 0;
        if (r->left < 0)
                r->left = 0;
        /* sanitize left and top in case someone passes ~0 as the value */
        r->left &= 0xfffe;
        r->top &= 0xfffe;
        if (r->left + w > MAX_WIDTH)
                r->left = MAX_WIDTH - w;
        if (r->top + h > MAX_HEIGHT)
                r->top = MAX_HEIGHT - h;
        if ((flags & (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE)) ==
                        (V4L2_SEL_FLAG_GE | V4L2_SEL_FLAG_LE) &&
            (r->width != w || r->height != h))
                return -ERANGE;
        r->width = w;
        r->height = h;
        return 0;
}

int vivid_enum_fmt_vid(struct file *file, void  *priv,
                                        struct v4l2_fmtdesc *f)
{
        struct vivid_dev *dev = video_drvdata(file);
        const struct vivid_fmt *fmt;

        if (f->index >= ARRAY_SIZE(vivid_formats) -
            (dev->multiplanar ? 0 : VIVID_MPLANAR_FORMATS))
                return -EINVAL;

        fmt = &vivid_formats[f->index];

        f->pixelformat = fmt->fourcc;

        if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
            f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
                return 0;
        /*
         * For capture devices, we support the CSC API.
         * We allow userspace to:
         * 1. set the colorspace
         * 2. set the xfer_func
         * 3. set the ycbcr_enc on YUV formats
         * 4. set the hsv_enc on HSV formats
         * 5. set the quantization on YUV and RGB formats
         */
        f->flags |= V4L2_FMT_FLAG_CSC_COLORSPACE;
        f->flags |= V4L2_FMT_FLAG_CSC_XFER_FUNC;

        if (fmt->color_enc == TGP_COLOR_ENC_YCBCR) {
                f->flags |= V4L2_FMT_FLAG_CSC_YCBCR_ENC;
                f->flags |= V4L2_FMT_FLAG_CSC_QUANTIZATION;
        } else if (fmt->color_enc == TGP_COLOR_ENC_HSV) {
                f->flags |= V4L2_FMT_FLAG_CSC_HSV_ENC;
        } else if (fmt->color_enc == TGP_COLOR_ENC_RGB) {
                f->flags |= V4L2_FMT_FLAG_CSC_QUANTIZATION;
        }

        return 0;
}

int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
{
        struct vivid_dev *dev = video_drvdata(file);
        struct video_device *vdev = video_devdata(file);

        if (vdev->vfl_dir == VFL_DIR_RX) {
                if (!vivid_is_sdtv_cap(dev))
                        return -ENODATA;
                *id = dev->std_cap[dev->input];
        } else {
                if (!vivid_is_svid_out(dev))
                        return -ENODATA;
                *id = dev->std_out;
        }
        return 0;
}

int vidioc_g_dv_timings(struct file *file, void *priv,
                                    struct v4l2_dv_timings *timings)
{
        struct vivid_dev *dev = video_drvdata(file);
        struct video_device *vdev = video_devdata(file);

        if (vdev->vfl_dir == VFL_DIR_RX) {
                if (!vivid_is_hdmi_cap(dev))
                        return -ENODATA;
                *timings = dev->dv_timings_cap[dev->input];
        } else {
                if (!vivid_is_hdmi_out(dev))
                        return -ENODATA;
                *timings = dev->dv_timings_out;
        }
        return 0;
}

int vidioc_enum_dv_timings(struct file *file, void *priv,
                                    struct v4l2_enum_dv_timings *timings)
{
        struct vivid_dev *dev = video_drvdata(file);
        struct video_device *vdev = video_devdata(file);

        if (vdev->vfl_dir == VFL_DIR_RX) {
                if (!vivid_is_hdmi_cap(dev))
                        return -ENODATA;
        } else {
                if (!vivid_is_hdmi_out(dev))
                        return -ENODATA;
        }
        return v4l2_enum_dv_timings_cap(timings, &vivid_dv_timings_cap,
                        NULL, NULL);
}

int vidioc_dv_timings_cap(struct file *file, void *priv,
                                    struct v4l2_dv_timings_cap *cap)
{
        struct vivid_dev *dev = video_drvdata(file);
        struct video_device *vdev = video_devdata(file);

        if (vdev->vfl_dir == VFL_DIR_RX) {
                if (!vivid_is_hdmi_cap(dev))
                        return -ENODATA;
        } else {
                if (!vivid_is_hdmi_out(dev))
                        return -ENODATA;
        }
        *cap = vivid_dv_timings_cap;
        return 0;
}

int vidioc_g_edid(struct file *file, void *priv,
                         struct v4l2_edid *edid)
{
        struct vivid_dev *dev = video_drvdata(file);
        struct vivid_dev *dev_rx = dev;
        struct video_device *vdev = video_devdata(file);
        struct cec_adapter *adap;
        unsigned int loc;

        memset(edid->reserved, 0, sizeof(edid->reserved));
        if (vdev->vfl_dir == VFL_DIR_RX) {
                if (edid->pad >= dev->num_inputs)
                        return -EINVAL;
                if (dev->input_type[edid->pad] != HDMI)
                        return -EINVAL;
                adap = dev->cec_rx_adap;
        } else {
                if (edid->pad >= dev->num_outputs)
                        return -EINVAL;
                if (dev->output_type[edid->pad] != HDMI)
                        return -EINVAL;
                dev_rx = dev->output_to_input_instance[edid->pad];
                if (!dev_rx)
                        return -ENODATA;

                unsigned int hdmi_output = dev->output_to_iface_index[edid->pad];

                adap = dev->cec_tx_adap[hdmi_output];
        }
        if (edid->start_block == 0 && edid->blocks == 0) {
                edid->blocks = dev_rx->edid_blocks;
                return 0;
        }
        if (dev_rx->edid_blocks == 0)
                return -ENODATA;
        if (edid->start_block >= dev_rx->edid_blocks)
                return -EINVAL;
        if (edid->blocks > dev_rx->edid_blocks - edid->start_block)
                edid->blocks = dev_rx->edid_blocks - edid->start_block;

        memcpy(edid->edid, dev_rx->edid + edid->start_block * 128, edid->blocks * 128);

        loc = cec_get_edid_spa_location(dev_rx->edid,
                                        dev_rx->edid_blocks * 128);
        if (vdev->vfl_dir == VFL_DIR_TX && adap && loc &&
            loc >= edid->start_block * 128 &&
            loc < (edid->start_block + edid->blocks) * 128) {
                unsigned int i;
                u8 sum = 0;

                loc -= edid->start_block * 128;
                edid->edid[loc] = adap->phys_addr >> 8;
                edid->edid[loc + 1] = adap->phys_addr & 0xff;
                loc &= ~0x7f;

                /* update the checksum */
                for (i = loc; i < loc + 127; i++)
                        sum += edid->edid[i];
                edid->edid[i] = 256 - sum;
        }
        return 0;
}