tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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#else
34static inline int hda_sdw_bpt_open(struct device *dev, int link_id,
35 struct hdac_ext_stream **bpt_tx_stream,
36 struct snd_dma_buffer *dmab_tx_bdl, u32 bpt_tx_num_bytes,
37 u32 tx_dma_bandwidth, struct hdac_ext_stream **bpt_rx_stream,
38 struct snd_dma_buffer *dmab_rx_bdl, u32 bpt_rx_num_bytes,
39 u32 rx_dma_bandwidth)
40{
41 WARN_ONCE(1, "SoundWire BPT is disabled");
42 return -EOPNOTSUPP;
43}
44
45static inline int hda_sdw_bpt_send_async(struct device *dev, struct hdac_ext_stream *bpt_tx_stream,
46 struct hdac_ext_stream *bpt_rx_stream)
47{
48 WARN_ONCE(1, "SoundWire BPT is disabled");
49 return -EOPNOTSUPP;
50}
51
52static inline int hda_sdw_bpt_wait(struct device *dev, struct hdac_ext_stream *bpt_tx_stream,
53 struct hdac_ext_stream *bpt_rx_stream)
54{
55 WARN_ONCE(1, "SoundWire BPT is disabled");
56 return -EOPNOTSUPP;
57}
58
59static inline int hda_sdw_bpt_close(struct device *dev, struct hdac_ext_stream *bpt_tx_stream,
60 struct snd_dma_buffer *dmab_tx_bdl,
61 struct hdac_ext_stream *bpt_rx_stream,
62 struct snd_dma_buffer *dmab_rx_bdl)
63{
64 WARN_ONCE(1, "SoundWire BPT is disabled");
65 return -EOPNOTSUPP;
66}
67#endif
68
69#endif /* __HDA_SDW_BPT_H */