/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (c) 2022 Rockchip Electronics Co. Ltd. */
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#ifndef __RK_CRYPTO_UTILS_H__
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#define __RK_CRYPTO_UTILS_H__
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#include <linux/dma-mapping.h>
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#include <linux/scatterlist.h>
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#include "rk_crypto_core.h"
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/* Default 256 x 4K = 1MByte */
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#define RK_DEFAULT_LLI_CNT 256
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struct crypto_lli_desc {
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u32 src_addr;
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u32 src_len;
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u32 dst_addr;
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u32 dst_len;
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u32 user_define;
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u32 reserve;
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u32 dma_ctrl;
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u32 next_addr;
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};
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struct rk_hw_desc {
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struct device *dev;
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struct crypto_lli_desc *lli_aad;
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struct crypto_lli_desc *lli_head;
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struct crypto_lli_desc *lli_tail;
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dma_addr_t lli_head_dma;
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dma_addr_t lli_aad_dma;
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u32 total;
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};
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void rk_crypto_write_regs(struct rk_crypto_dev *rk_dev, u32 base_addr, const u8 *data, u32 bytes);
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void rk_crypto_clear_regs(struct rk_crypto_dev *rk_dev, u32 base_addr, u32 words);
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void rk_crypto_read_regs(struct rk_crypto_dev *rk_dev, u32 base_addr, u8 *data, u32 bytes);
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bool rk_crypto_check_align(struct scatterlist *src_sg, size_t src_nents,
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struct scatterlist *dst_sg, size_t dst_nents,
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int align_mask);
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bool rk_crypto_check_dmafd(struct scatterlist *sgl, size_t nents);
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u64 rk_crypto_hw_desc_maxlen(struct scatterlist *sg, u64 len, u32 *max_nents);
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int rk_crypto_hw_desc_alloc(struct device *dev, struct rk_hw_desc *hw_desc);
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int rk_crypto_hw_desc_init(struct rk_hw_desc *hw_desc,
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struct scatterlist *src_sg,
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struct scatterlist *dst_sg,
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u64 len);
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void rk_crypto_hw_desc_free(struct rk_hw_desc *hw_desc);
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void rk_crypto_dump_hw_desc(struct rk_hw_desc *hw_desc);
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#endif
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