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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2024, Ideas On Board
 *
 * RkISP1 ISP Parameters
 */

#include "params.h"

#include <map>
#include <stddef.h>
#include <string.h>

#include <linux/rkisp1-config.h>
#include <linux/videodev2.h>

#include <libcamera/base/log.h>
#include <libcamera/base/utils.h>

namespace libcamera {

LOG_DEFINE_CATEGORY(RkISP1Params)

namespace ipa::rkisp1 {

namespace {

struct BlockTypeInfo {
	enum rkisp1_ext_params_block_type type;
	size_t size;
	size_t offset;
	uint32_t enableBit;
};

#define RKISP1_BLOCK_TYPE_ENTRY(block, id, type, category, bit)			\
	{ BlockType::block, {							\
		RKISP1_EXT_PARAMS_BLOCK_TYPE_##id,				\
		sizeof(struct rkisp1_cif_isp_##type##_config),			\
		offsetof(struct rkisp1_params_cfg, category.type##_config),	\
		RKISP1_CIF_ISP_MODULE_##bit,					\
	} }

#define RKISP1_BLOCK_TYPE_ENTRY_MEAS(block, id, type)				\
	RKISP1_BLOCK_TYPE_ENTRY(block, id##_MEAS, type, meas, id)

#define RKISP1_BLOCK_TYPE_ENTRY_OTHERS(block, id, type)				\
	RKISP1_BLOCK_TYPE_ENTRY(block, id, type, others, id)

#define RKISP1_BLOCK_TYPE_ENTRY_EXT(block, id, type)				\
	{ BlockType::block, {							\
		RKISP1_EXT_PARAMS_BLOCK_TYPE_##id,				\
		sizeof(struct rkisp1_cif_isp_##type##_config),			\
		0, 0,								\
	} }

const std::map<BlockType, BlockTypeInfo> kBlockTypeInfo = {
	RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Bls, BLS, bls),
	RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Dpcc, DPCC, dpcc),
	RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Sdg, SDG, sdg),
	RKISP1_BLOCK_TYPE_ENTRY_OTHERS(AwbGain, AWB_GAIN, awb_gain),
	RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Flt, FLT, flt),
	RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Bdm, BDM, bdm),
	RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Ctk, CTK, ctk),
	RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Goc, GOC, goc),
	RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Dpf, DPF, dpf),
	RKISP1_BLOCK_TYPE_ENTRY_OTHERS(DpfStrength, DPF_STRENGTH, dpf_strength),
	RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Cproc, CPROC, cproc),
	RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Ie, IE, ie),
	RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Lsc, LSC, lsc),
	RKISP1_BLOCK_TYPE_ENTRY_MEAS(Awb, AWB, awb_meas),
	RKISP1_BLOCK_TYPE_ENTRY_MEAS(Hst, HST, hst),
	RKISP1_BLOCK_TYPE_ENTRY_MEAS(Aec, AEC, aec),
	RKISP1_BLOCK_TYPE_ENTRY_MEAS(Afc, AFC, afc),
	RKISP1_BLOCK_TYPE_ENTRY_EXT(CompandBls, COMPAND_BLS, compand_bls),
	RKISP1_BLOCK_TYPE_ENTRY_EXT(CompandExpand, COMPAND_EXPAND, compand_curve),
	RKISP1_BLOCK_TYPE_ENTRY_EXT(CompandCompress, COMPAND_COMPRESS, compand_curve),
};

} /* namespace */

RkISP1ParamsBlockBase::RkISP1ParamsBlockBase(RkISP1Params *params, BlockType type,
					     const Span<uint8_t> &data)
	: params_(params), type_(type)
{
	if (params_->format() == V4L2_META_FMT_RK_ISP1_EXT_PARAMS) {
		header_ = data.subspan(0, sizeof(rkisp1_ext_params_block_header));
		data_ = data.subspan(sizeof(rkisp1_ext_params_block_header));
	} else {
		data_ = data;
	}
}

void RkISP1ParamsBlockBase::setEnabled(bool enabled)
{
	/*