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33 lines
827 B
C
33 lines
827 B
C
/*
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* Copyright (c) 2022-2024, ArtInChip Technology Co., Ltd
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef __INCLUDE_BOUNCEBUF_H__
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#define __INCLUDE_BOUNCEBUF_H__
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#define GEN_BB_READ (1 << 0)
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#define GEN_BB_WRITE (1 << 1)
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#define GEN_BB_RW (GEN_BB_READ | GEN_BB_WRITE)
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struct bounce_buffer {
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void *user_buffer;
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void *bounce_buffer;
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size_t len;
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size_t len_aligned;
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unsigned int flags;
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};
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int bounce_buffer_start(struct bounce_buffer *state, void *data,
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size_t len, unsigned int flags);
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int bounce_buffer_start_extalign(struct bounce_buffer *state, void *data,
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size_t len, unsigned int flags,
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size_t alignment,
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int (*addr_is_aligned)(struct bounce_buffer *state));
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int bounce_buffer_stop(struct bounce_buffer *state);
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#endif
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