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48 lines
1.3 KiB
48 lines
1.3 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Copyright (c) 2011-2014, The Linux Foundation. All rights reserved. |
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*/ |
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#ifndef _DMA_H_ |
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#define _DMA_H_ |
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#include <linux/dmaengine.h> |
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/* maximum data transfer block size between BAM and CE */ |
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#define QCE_BAM_BURST_SIZE 64 |
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#define QCE_AUTHIV_REGS_CNT 16 |
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#define QCE_AUTH_BYTECOUNT_REGS_CNT 4 |
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#define QCE_CNTRIV_REGS_CNT 4 |
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struct qce_result_dump { |
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u32 auth_iv[QCE_AUTHIV_REGS_CNT]; |
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u32 auth_byte_count[QCE_AUTH_BYTECOUNT_REGS_CNT]; |
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u32 encr_cntr_iv[QCE_CNTRIV_REGS_CNT]; |
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u32 status; |
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u32 status2; |
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}; |
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#define QCE_IGNORE_BUF_SZ (2 * QCE_BAM_BURST_SIZE) |
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#define QCE_RESULT_BUF_SZ \ |
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ALIGN(sizeof(struct qce_result_dump), QCE_BAM_BURST_SIZE) |
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struct qce_dma_data { |
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struct dma_chan *txchan; |
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struct dma_chan *rxchan; |
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struct qce_result_dump *result_buf; |
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void *ignore_buf; |
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}; |
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int qce_dma_request(struct device *dev, struct qce_dma_data *dma); |
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void qce_dma_release(struct qce_dma_data *dma); |
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int qce_dma_prep_sgs(struct qce_dma_data *dma, struct scatterlist *sg_in, |
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int in_ents, struct scatterlist *sg_out, int out_ents, |
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dma_async_tx_callback cb, void *cb_param); |
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void qce_dma_issue_pending(struct qce_dma_data *dma); |
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int qce_dma_terminate_all(struct qce_dma_data *dma); |
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struct scatterlist * |
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qce_sgtable_add(struct sg_table *sgt, struct scatterlist *sg_add, |
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unsigned int max_len); |
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#endif /* _DMA_H_ */
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