// SPDX-License-Identifier: GPL-2.0-or-later

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/usb/uvc.h>
#include <linux/videodev2.h>

/* ------------------------------------------------------------------------
 * Video formats
 */

static const struct uvc_format_desc uvc_fmts[] = {
        {
                .guid           = UVC_GUID_FORMAT_YUY2,
                .fcc            = V4L2_PIX_FMT_YUYV,
        },
        {
                .guid           = UVC_GUID_FORMAT_YUY2_ISIGHT,
                .fcc            = V4L2_PIX_FMT_YUYV,
        },
        {
                .guid           = UVC_GUID_FORMAT_NV12,
                .fcc            = V4L2_PIX_FMT_NV12,
        },
        {
                .guid           = UVC_GUID_FORMAT_MJPEG,
                .fcc            = V4L2_PIX_FMT_MJPEG,
        },
        {
                .guid           = UVC_GUID_FORMAT_YV12,
                .fcc            = V4L2_PIX_FMT_YVU420,
        },
        {
                .guid           = UVC_GUID_FORMAT_I420,
                .fcc            = V4L2_PIX_FMT_YUV420,
        },
        {
                .guid           = UVC_GUID_FORMAT_M420,
                .fcc            = V4L2_PIX_FMT_M420,
        },
        {
                .guid           = UVC_GUID_FORMAT_P010,
                .fcc            = V4L2_PIX_FMT_P010,
        },
        {
                .guid           = UVC_GUID_FORMAT_UYVY,
                .fcc            = V4L2_PIX_FMT_UYVY,
        },
        {
                .guid           = UVC_GUID_FORMAT_Y800,
                .fcc            = V4L2_PIX_FMT_GREY,
        },
        {
                .guid           = UVC_GUID_FORMAT_Y8,
                .fcc            = V4L2_PIX_FMT_GREY,
        },
        {
                .guid           = UVC_GUID_FORMAT_D3DFMT_L8,
                .fcc            = V4L2_PIX_FMT_GREY,
        },
        {
                .guid           = UVC_GUID_FORMAT_KSMEDIA_L8_IR,
                .fcc            = V4L2_PIX_FMT_GREY,
        },
        {
                .guid           = UVC_GUID_FORMAT_Y10,
                .fcc            = V4L2_PIX_FMT_Y10,
        },
        {
                .guid           = UVC_GUID_FORMAT_Y12,
                .fcc            = V4L2_PIX_FMT_Y12,
        },
        {
                .guid           = UVC_GUID_FORMAT_Y16,
                .fcc            = V4L2_PIX_FMT_Y16,
        },
        {
                .guid           = UVC_GUID_FORMAT_BY8,
                .fcc            = V4L2_PIX_FMT_SBGGR8,
        },
        {
                .guid           = UVC_GUID_FORMAT_BA81,
                .fcc            = V4L2_PIX_FMT_SBGGR8,
        },
        {
                .guid           = UVC_GUID_FORMAT_GBRG,
                .fcc            = V4L2_PIX_FMT_SGBRG8,
        },
        {
                .guid           = UVC_GUID_FORMAT_GRBG,
                .fcc            = V4L2_PIX_FMT_SGRBG8,
        },
        {
                .guid           = UVC_GUID_FORMAT_RGGB,
                .fcc            = V4L2_PIX_FMT_SRGGB8,
        },
        {
                .guid           = UVC_GUID_FORMAT_RGBP,
                .fcc            = V4L2_PIX_FMT_RGB565,
        },
        {
                .guid           = UVC_GUID_FORMAT_D3DFMT_R5G6B5,
                .fcc            = V4L2_PIX_FMT_RGB565,
        },
        {
                .guid           = UVC_GUID_FORMAT_BGR3,
                .fcc            = V4L2_PIX_FMT_BGR24,
        },
        {
                .guid           = UVC_GUID_FORMAT_BGR4,
                .fcc            = V4L2_PIX_FMT_XBGR32,
        },
        {
                .guid           = UVC_GUID_FORMAT_H264,
                .fcc            = V4L2_PIX_FMT_H264,
        },
        {
                .guid           = UVC_GUID_FORMAT_H265,
                .fcc            = V4L2_PIX_FMT_HEVC,
        },
        {
                .guid           = UVC_GUID_FORMAT_Y8I,
                .fcc            = V4L2_PIX_FMT_Y8I,
        },
        {
                .guid           = UVC_GUID_FORMAT_Y12I,
                .fcc            = V4L2_PIX_FMT_Y12I,
        },
        {
                .guid           = UVC_GUID_FORMAT_Y16I,
                .fcc            = V4L2_PIX_FMT_Y16I,
        },
        {
                .guid           = UVC_GUID_FORMAT_Z16,
                .fcc            = V4L2_PIX_FMT_Z16,
        },
        {
                .guid           = UVC_GUID_FORMAT_RW10,
                .fcc            = V4L2_PIX_FMT_SRGGB10P,
        },
        {
                .guid           = UVC_GUID_FORMAT_BG16,
                .fcc            = V4L2_PIX_FMT_SBGGR16,
        },
        {
                .guid           = UVC_GUID_FORMAT_GB16,
                .fcc            = V4L2_PIX_FMT_SGBRG16,
        },
        {
                .guid           = UVC_GUID_FORMAT_RG16,
                .fcc            = V4L2_PIX_FMT_SRGGB16,
        },
        {
                .guid           = UVC_GUID_FORMAT_GR16,
                .fcc            = V4L2_PIX_FMT_SGRBG16,
        },
        {
                .guid           = UVC_GUID_FORMAT_INVZ,
                .fcc            = V4L2_PIX_FMT_Z16,
        },
        {
                .guid           = UVC_GUID_FORMAT_INVI,
                .fcc            = V4L2_PIX_FMT_Y10,
        },
        {
                .guid           = UVC_GUID_FORMAT_INZI,
                .fcc            = V4L2_PIX_FMT_INZI,
        },
        {
                .guid           = UVC_GUID_FORMAT_CNF4,
                .fcc            = V4L2_PIX_FMT_CNF4,
        },
        {
                .guid           = UVC_GUID_FORMAT_HEVC,
                .fcc            = V4L2_PIX_FMT_HEVC,
        },
};

const struct uvc_format_desc *uvc_format_by_guid(const u8 guid[16])
{
        unsigned int len = ARRAY_SIZE(uvc_fmts);
        unsigned int i;

        for (i = 0; i < len; ++i) {
                if (memcmp(guid, uvc_fmts[i].guid, 16) == 0)
                        return &uvc_fmts[i];
        }

        return NULL;
}
EXPORT_SYMBOL_GPL(uvc_format_by_guid);

MODULE_DESCRIPTION("USB Video Class common code");
MODULE_LICENSE("GPL");