46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2018 MediaTek Inc.
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*/
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#ifndef AUDIO_RINGBUF_H
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#define AUDIO_RINGBUF_H
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/*
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* real data operation with ringbuffer
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* when moving memory.
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*/
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struct RingBuf {
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char *pBufBase;
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char *pBufEnd;
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char *pRead;
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char *pWrite;
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int bufLen;
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int datacount;
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};
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struct audio_dsp_dram {
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unsigned long long phy_addr;
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unsigned long long va_addr;
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unsigned long long size;
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unsigned char *vir_addr;
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};
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void reset_audio_dma_buf(struct snd_dma_buffer *dma_buf);
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void dump_rbuf(struct RingBuf *ring_buffer);
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void dump_rbuf_s(const char *appendingstring, struct RingBuf *ring_buffer);
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int init_ring_buf(struct RingBuf *buf, char *vaaddr, int size);
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void RingBuf_update_readptr(struct RingBuf *RingBuf1, unsigned int count);
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unsigned int RingBuf_getFreeSpace(const struct RingBuf *RingBuf1);
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void Ringbuf_Check(struct RingBuf *RingBuf1);
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void RingBuf_copyFromUserLinear(struct RingBuf *RingBuf1, void __user *buf,
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unsigned int count);
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void RingBuf_copyFromLinear(struct RingBuf *RingBuf1, const char *buf,
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unsigned int count);
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void RingBuf_Reset(struct RingBuf *RingBuf1);
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int RingBuf_Clear(struct RingBuf *RingBuf1);
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#endif /* end of AUDIO_RINGBUF_H */
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