// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
 * Rockchip ISP1 Driver - Common definitions
 *
 * Copyright (C) 2019 Collabora, Ltd.
 */

#include <media/mipi-csi2.h>
#include <media/v4l2-rect.h>

#include "rkisp1-common.h"

static const struct rkisp1_mbus_info rkisp1_formats[] = {
        {
                .mbus_code      = MEDIA_BUS_FMT_YUYV8_2X8,
                .pixel_enc      = V4L2_PIXEL_ENC_YUV,
                .direction      = RKISP1_ISP_SD_SRC,
        }, {
                .mbus_code      = MEDIA_BUS_FMT_SRGGB10_1X10,
                .pixel_enc      = V4L2_PIXEL_ENC_BAYER,
                .mipi_dt        = MIPI_CSI2_DT_RAW10,
                .bayer_pat      = RKISP1_RAW_RGGB,
                .bus_width      = 10,
                .direction      = RKISP1_ISP_SD_SINK | RKISP1_ISP_SD_SRC,
        }, {
                .mbus_code      = MEDIA_BUS_FMT_SBGGR10_1X10,
                .pixel_enc      = V4L2_PIXEL_ENC_BAYER,
                .mipi_dt        = MIPI_CSI2_DT_RAW10,
                .bayer_pat      = RKISP1_RAW_BGGR,
                .bus_width      = 10,
                .direction      = RKISP1_ISP_SD_SINK | RKISP1_ISP_SD_SRC,
        }, {
                .mbus_code      = MEDIA_BUS_FMT_SGBRG10_1X10,
                .pixel_enc      = V4L2_PIXEL_ENC_BAYER,
                .mipi_dt        = MIPI_CSI2_DT_RAW10,
                .bayer_pat      = RKISP1_RAW_GBRG,
                .bus_width      = 10,
                .direction      = RKISP1_ISP_SD_SINK | RKISP1_ISP_SD_SRC,
        }, {
                .mbus_code      = MEDIA_BUS_FMT_SGRBG10_1X10,
                .pixel_enc      = V4L2_PIXEL_ENC_BAYER,
                .mipi_dt        = MIPI_CSI2_DT_RAW10,
                .bayer_pat      = RKISP1_RAW_GRBG,
                .bus_width      = 10,
                .direction      = RKISP1_ISP_SD_SINK | RKISP1_ISP_SD_SRC,
        }, {
                .mbus_code      = MEDIA_BUS_FMT_SRGGB12_1X12,
                .pixel_enc      = V4L2_PIXEL_ENC_BAYER,
                .mipi_dt        = MIPI_CSI2_DT_RAW12,
                .bayer_pat      = RKISP1_RAW_RGGB,
                .bus_width      = 12,
                .direction      = RKISP1_ISP_SD_SINK | RKISP1_ISP_SD_SRC,
        }, {
                .mbus_code      = MEDIA_BUS_FMT_SBGGR12_1X12,
                .pixel_enc      = V4L2_PIXEL_ENC_BAYER,
                .mipi_dt        = MIPI_CSI2_DT_RAW12,
                .bayer_pat      = RKISP1_RAW_BGGR,
                .bus_width      = 12,
                .direction      = RKISP1_ISP_SD_SINK | RKISP1_ISP_SD_SRC,
        }, {
                .mbus_code      = MEDIA_BUS_FMT_SGBRG12_1X12,
                .pixel_enc      = V4L2_PIXEL_ENC_BAYER,
                .mipi_dt        = MIPI_CSI2_DT_RAW12,
                .bayer_pat      = RKISP1_RAW_GBRG,
                .bus_width      = 12,
                .direction      = RKISP1_ISP_SD_SINK | RKISP1_ISP_SD_SRC,
        }, {
                .mbus_code      = MEDIA_BUS_FMT_SGRBG12_1X12,
                .pixel_enc      = V4L2_PIXEL_ENC_BAYER,
                .mipi_dt        = MIPI_CSI2_DT_RAW12,
                .bayer_pat      = RKISP1_RAW_GRBG,
                .bus_width      = 12,
                .direction      = RKISP1_ISP_SD_SINK | RKISP1_ISP_SD_SRC,
        }, {
                .mbus_code      = MEDIA_BUS_FMT_SRGGB8_1X8,
                .pixel_enc      = V4L2_PIXEL_ENC_BAYER,
                .mipi_dt        = MIPI_CSI2_DT_RAW8,
                .bayer_pat      = RKISP1_RAW_RGGB,
                .bus_width      = 8,
                .direction      = RKISP1_ISP_SD_SINK | RKISP1_ISP_SD_SRC,
        }, {
                .mbus_code      = MEDIA_BUS_FMT_SBGGR8_1X8,
                .pixel_enc      = V4L2_PIXEL_ENC_BAYER,
                .mipi_dt        = MIPI_CSI2_DT_RAW8,
                .bayer_pat      = RKISP1_RAW_BGGR,
                .bus_width      = 8,
                .direction      = RKISP1_ISP_SD_SINK | RKISP1_ISP_SD_SRC,
        }, {
                .mbus_code      = MEDIA_BUS_FMT_SGBRG8_1X8,
                .pixel_enc      = V4L2_PIXEL_ENC_BAYER,
                .mipi_dt        = MIPI_CSI2_DT_RAW8,
                .bayer_pat      = RKISP1_RAW_GBRG,
                .bus_width      = 8,
                .direction      = RKISP1_ISP_SD_SINK | RKISP1_ISP_SD_SRC,
        }, {
                .mbus_code      = MEDIA_BUS_FMT_SGRBG8_1X8,
                .pixel_enc      = V4L2_PIXEL_ENC_BAYER,
                .mipi_dt        = MIPI_CSI2_DT_RAW8,
                .bayer_pat      = RKISP1_RAW_GRBG,
                .bus_width      = 8,
                .direction      = RKISP1_ISP_SD_SINK | RKISP1_ISP_SD_SRC,
        }, {
                .mbus_code      = MEDIA_BUS_FMT_YUYV8_1X16,
                .pixel_enc      = V4L2_PIXEL_ENC_YUV,
                .mipi_dt        = MIPI_CSI2_DT_YUV422_8B,
                .yuv_seq        = RKISP1_CIF_ISP_ACQ_PROP_YCBYCR,
                .bus_width      = 16,
                .direction      = RKISP1_ISP_SD_SINK,
        }, {
                .mbus_code      = MEDIA_BUS_FMT_YVYU8_1X16,
                .pixel_enc      = V4L2_PIXEL_ENC_YUV,
                .mipi_dt        = MIPI_CSI2_DT_YUV422_8B,
                .yuv_seq        = RKISP1_CIF_ISP_ACQ_PROP_YCRYCB,
                .bus_width      = 16,
                .direction      = RKISP1_ISP_SD_SINK,
        }, {
                .mbus_code      = MEDIA_BUS_FMT_UYVY8_1X16,
                .pixel_enc      = V4L2_PIXEL_ENC_YUV,
                .mipi_dt        = MIPI_CSI2_DT_YUV422_8B,
                .yuv_seq        = RKISP1_CIF_ISP_ACQ_PROP_CBYCRY,
                .bus_width      = 16,
                .direction      = RKISP1_ISP_SD_SINK,
        }, {
                .mbus_code      = MEDIA_BUS_FMT_VYUY8_1X16,
                .pixel_enc      = V4L2_PIXEL_ENC_YUV,
                .mipi_dt        = MIPI_CSI2_DT_YUV422_8B,
                .yuv_seq        = RKISP1_CIF_ISP_ACQ_PROP_CRYCBY,
                .bus_width      = 16,
                .direction      = RKISP1_ISP_SD_SINK,
        },
};

const struct rkisp1_mbus_info *rkisp1_mbus_info_get_by_index(unsigned int index)
{
        if (index >= ARRAY_SIZE(rkisp1_formats))
                return NULL;

        return &rkisp1_formats[index];
}

const struct rkisp1_mbus_info *rkisp1_mbus_info_get_by_code(u32 mbus_code)
{
        unsigned int i;

        for (i = 0; i < ARRAY_SIZE(rkisp1_formats); i++) {
                const struct rkisp1_mbus_info *fmt = &rkisp1_formats[i];

                if (fmt->mbus_code == mbus_code)
                        return fmt;
        }

        return NULL;
}

static const struct v4l2_rect rkisp1_sd_min_crop = {
        .width = RKISP1_ISP_MIN_WIDTH,
        .height = RKISP1_ISP_MIN_HEIGHT,
        .top = 0,
        .left = 0,
};

void rkisp1_sd_adjust_crop_rect(struct v4l2_rect *crop,
                                const struct v4l2_rect *bounds)
{
        v4l2_rect_set_min_size(crop, &rkisp1_sd_min_crop);
        v4l2_rect_map_inside(crop, bounds);
}

void rkisp1_sd_adjust_crop(struct v4l2_rect *crop,
                           const struct v4l2_mbus_framefmt *bounds)
{
        struct v4l2_rect crop_bounds = {
                .left = 0,
                .top = 0,
                .width = bounds->width,
                .height = bounds->height,
        };

        rkisp1_sd_adjust_crop_rect(crop, &crop_bounds);
}

void rkisp1_bls_swap_regs(enum rkisp1_fmt_raw_pat_type pattern,
                          const u32 input[4], u32 output[4])
{
        static const unsigned int swap[4][4] = {
                [RKISP1_RAW_RGGB] = { 0, 1, 2, 3 },
                [RKISP1_RAW_GRBG] = { 1, 0, 3, 2 },
                [RKISP1_RAW_GBRG] = { 2, 3, 0, 1 },
                [RKISP1_RAW_BGGR] = { 3, 2, 1, 0 },
        };

        for (unsigned int i = 0; i < 4; ++i)
                output[i] = input[swap[pattern][i]];
}