/* SPDX-License-Identifier: GPL-2.0 */ /* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */ #ifndef __CC_IVGEN_H__ #define __CC_IVGEN_H__ #include "cc_hw_queue_defs.h" #define CC_IVPOOL_SEQ_LEN 8 /*! * Allocates iv-pool and maps resources. * This function generates the first IV pool. * * \param drvdata Driver's private context * * \return int Zero for success, negative value otherwise. */ int cc_ivgen_init(struct cc_drvdata *drvdata); /*! * Free iv-pool and ivgen context. * * \param drvdata */ void cc_ivgen_fini(struct cc_drvdata *drvdata); /*! * Generates the initial pool in SRAM. * This function should be invoked when resuming DX driver. * * \param drvdata * * \return int Zero for success, negative value otherwise. */ int cc_init_iv_sram(struct cc_drvdata *drvdata); /*! * Acquires 16 Bytes IV from the iv-pool * * \param drvdata Driver private context * \param iv_out_dma Array of physical IV out addresses * \param iv_out_dma_len Length of iv_out_dma array (additional elements of * iv_out_dma array are ignore) * \param iv_out_size May be 8 or 16 bytes long * \param iv_seq IN/OUT array to the descriptors sequence * \param iv_seq_len IN/OUT pointer to the sequence length * * \return int Zero for success, negative value otherwise. */ int cc_get_iv(struct cc_drvdata *drvdata, dma_addr_t iv_out_dma[], unsigned int iv_out_dma_len, unsigned int iv_out_size, struct cc_hw_desc iv_seq[], unsigned int *iv_seq_len); #endif /*__CC_IVGEN_H__*/