56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */
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#ifndef __CC_IVGEN_H__
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#define __CC_IVGEN_H__
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#include "cc_hw_queue_defs.h"
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#define CC_IVPOOL_SEQ_LEN 8
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/*!
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* Allocates iv-pool and maps resources.
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* This function generates the first IV pool.
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*
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* \param drvdata Driver's private context
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*
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* \return int Zero for success, negative value otherwise.
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*/
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int cc_ivgen_init(struct cc_drvdata *drvdata);
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/*!
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* Free iv-pool and ivgen context.
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*
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* \param drvdata
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*/
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void cc_ivgen_fini(struct cc_drvdata *drvdata);
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/*!
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* Generates the initial pool in SRAM.
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* This function should be invoked when resuming DX driver.
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*
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* \param drvdata
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*
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* \return int Zero for success, negative value otherwise.
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*/
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int cc_init_iv_sram(struct cc_drvdata *drvdata);
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/*!
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* Acquires 16 Bytes IV from the iv-pool
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*
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* \param drvdata Driver private context
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* \param iv_out_dma Array of physical IV out addresses
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* \param iv_out_dma_len Length of iv_out_dma array (additional elements of
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* iv_out_dma array are ignore)
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* \param iv_out_size May be 8 or 16 bytes long
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* \param iv_seq IN/OUT array to the descriptors sequence
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* \param iv_seq_len IN/OUT pointer to the sequence length
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*
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* \return int Zero for success, negative value otherwise.
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*/
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int cc_get_iv(struct cc_drvdata *drvdata, dma_addr_t iv_out_dma[],
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unsigned int iv_out_dma_len, unsigned int iv_out_size,
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struct cc_hw_desc iv_seq[], unsigned int *iv_seq_len);
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#endif /*__CC_IVGEN_H__*/
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