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167efc6dfd
The dma buffer need to be a multiple of data block size and the fifo size. Export a function to return the LCM of data block size and the fifo size. Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Link: https://patch.msgid.link/20251014031450.3781789-6-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
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/*
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* Copyright(c) 2025 Intel Corporation.
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*/
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#ifndef __HDA_SDW_BPT_H
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#define __HDA_SDW_BPT_H
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#include <linux/device.h>
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struct hdac_ext_stream;
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struct snd_dma_buffer;
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#if IS_ENABLED(CONFIG_SND_SOF_SOF_HDA_SDW_BPT)
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int hda_sdw_bpt_open(struct device *dev, int link_id, struct hdac_ext_stream **bpt_tx_stream,
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struct snd_dma_buffer *dmab_tx_bdl, u32 bpt_tx_num_bytes,
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u32 tx_dma_bandwidth, struct hdac_ext_stream **bpt_rx_stream,
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struct snd_dma_buffer *dmab_rx_bdl, u32 bpt_rx_num_bytes,
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u32 rx_dma_bandwidth);
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int hda_sdw_bpt_send_async(struct device *dev, struct hdac_ext_stream *bpt_tx_stream,
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struct hdac_ext_stream *bpt_rx_stream);
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int hda_sdw_bpt_wait(struct device *dev, struct hdac_ext_stream *bpt_tx_stream,
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struct hdac_ext_stream *bpt_rx_stream);
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int hda_sdw_bpt_close(struct device *dev, struct hdac_ext_stream *bpt_tx_stream,
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struct snd_dma_buffer *dmab_tx_bdl, struct hdac_ext_stream *bpt_rx_stream,
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struct snd_dma_buffer *dmab_rx_bdl);
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unsigned int hda_sdw_bpt_get_buf_size_alignment(unsigned int dma_bandwidth);
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#else
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static inline int hda_sdw_bpt_open(struct device *dev, int link_id,
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struct hdac_ext_stream **bpt_tx_stream,
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struct snd_dma_buffer *dmab_tx_bdl, u32 bpt_tx_num_bytes,
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u32 tx_dma_bandwidth, struct hdac_ext_stream **bpt_rx_stream,
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struct snd_dma_buffer *dmab_rx_bdl, u32 bpt_rx_num_bytes,
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u32 rx_dma_bandwidth)
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{
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WARN_ONCE(1, "SoundWire BPT is disabled");
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return -EOPNOTSUPP;
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}
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static inline int hda_sdw_bpt_send_async(struct device *dev, struct hdac_ext_stream *bpt_tx_stream,
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struct hdac_ext_stream *bpt_rx_stream)
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{
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WARN_ONCE(1, "SoundWire BPT is disabled");
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return -EOPNOTSUPP;
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}
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static inline int hda_sdw_bpt_wait(struct device *dev, struct hdac_ext_stream *bpt_tx_stream,
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struct hdac_ext_stream *bpt_rx_stream)
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{
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WARN_ONCE(1, "SoundWire BPT is disabled");
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return -EOPNOTSUPP;
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}
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static inline int hda_sdw_bpt_close(struct device *dev, struct hdac_ext_stream *bpt_tx_stream,
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struct snd_dma_buffer *dmab_tx_bdl,
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struct hdac_ext_stream *bpt_rx_stream,
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struct snd_dma_buffer *dmab_rx_bdl)
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{
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WARN_ONCE(1, "SoundWire BPT is disabled");
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return -EOPNOTSUPP;
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}
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static inline unsigned int hda_sdw_bpt_get_buf_size_alignment(unsigned int dma_bandwidth)
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{
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return 0;
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}
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#endif
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#endif /* __HDA_SDW_BPT_H */
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