hda-sdw-bpt.h

 1/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
 2/*
 3 * This file is provided under a dual BSD/GPLv2 license.  When using or
 4 * redistributing this file, you may do so under either license.
 5 *
 6 * Copyright(c) 2025 Intel Corporation.
 7 */
 8
 9#ifndef __HDA_SDW_BPT_H
10#define __HDA_SDW_BPT_H
11
12#include <linux/device.h>
13
14struct hdac_ext_stream;
15struct snd_dma_buffer;
16
17#if IS_ENABLED(CONFIG_SND_SOF_SOF_HDA_SDW_BPT)
18int hda_sdw_bpt_open(struct device *dev, int link_id, struct hdac_ext_stream **bpt_tx_stream,
19		     struct snd_dma_buffer *dmab_tx_bdl, u32 bpt_tx_num_bytes,
20		     u32 tx_dma_bandwidth, struct hdac_ext_stream **bpt_rx_stream,
21		     struct snd_dma_buffer *dmab_rx_bdl, u32 bpt_rx_num_bytes,
22		     u32 rx_dma_bandwidth);
23
24int hda_sdw_bpt_send_async(struct device *dev, struct hdac_ext_stream *bpt_tx_stream,
25			   struct hdac_ext_stream *bpt_rx_stream);
26
27int hda_sdw_bpt_wait(struct device *dev, struct hdac_ext_stream *bpt_tx_stream,
28		     struct hdac_ext_stream *bpt_rx_stream);
29
30int hda_sdw_bpt_close(struct device *dev, struct hdac_ext_stream *bpt_tx_stream,
31		      struct snd_dma_buffer *dmab_tx_bdl, struct hdac_ext_stream *bpt_rx_stream,
32		      struct snd_dma_buffer *dmab_rx_bdl);
33
34unsigned int hda_sdw_bpt_get_buf_size_alignment(unsigned int dma_bandwidth);
35#else
36static inline int hda_sdw_bpt_open(struct device *dev, int link_id,
37				   struct hdac_ext_stream **bpt_tx_stream,
38				   struct snd_dma_buffer *dmab_tx_bdl, u32 bpt_tx_num_bytes,
39				   u32 tx_dma_bandwidth, struct hdac_ext_stream **bpt_rx_stream,
40				   struct snd_dma_buffer *dmab_rx_bdl, u32 bpt_rx_num_bytes,
41				   u32 rx_dma_bandwidth)
42{
43	WARN_ONCE(1, "SoundWire BPT is disabled");
44	return -EOPNOTSUPP;
45}
46
47static inline int hda_sdw_bpt_send_async(struct device *dev, struct hdac_ext_stream *bpt_tx_stream,
48					 struct hdac_ext_stream *bpt_rx_stream)
49{
50	WARN_ONCE(1, "SoundWire BPT is disabled");
51	return -EOPNOTSUPP;
52}
53
54static inline int hda_sdw_bpt_wait(struct device *dev, struct hdac_ext_stream *bpt_tx_stream,
55				   struct hdac_ext_stream *bpt_rx_stream)
56{
57	WARN_ONCE(1, "SoundWire BPT is disabled");
58	return -EOPNOTSUPP;
59}
60
61static inline int hda_sdw_bpt_close(struct device *dev, struct hdac_ext_stream *bpt_tx_stream,
62				    struct snd_dma_buffer *dmab_tx_bdl,
63				    struct hdac_ext_stream *bpt_rx_stream,
64				    struct snd_dma_buffer *dmab_rx_bdl)
65{
66	WARN_ONCE(1, "SoundWire BPT is disabled");
67	return -EOPNOTSUPP;
68}
69
70static inline unsigned int hda_sdw_bpt_get_buf_size_alignment(unsigned int dma_bandwidth)
71{
72	return 0;
73}
74#endif
75
76#endif /* __HDA_SDW_BPT_H */