devices/virtio/snd/
layout.rs

1// Copyright 2020 The ChromiumOS Authors
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5use data_model::Le32;
6use data_model::Le64;
7use serde::Deserialize;
8use serde::Serialize;
9use zerocopy::FromBytes;
10use zerocopy::Immutable;
11use zerocopy::IntoBytes;
12use zerocopy::KnownLayout;
13
14use crate::virtio::snd::constants::StatusCode;
15use crate::virtio::snd::constants::VIRTIO_SND_CHMAP_MAX_SIZE;
16
17#[derive(
18    Copy, Clone, Default, FromBytes, Immutable, IntoBytes, KnownLayout, Serialize, Deserialize,
19)]
20#[repr(C)]
21pub struct virtio_snd_hdr {
22    pub code: Le32,
23}
24
25#[derive(Copy, Clone, Default, FromBytes, Immutable, IntoBytes, KnownLayout)]
26#[repr(C)]
27pub struct virtio_snd_jack_hdr {
28    pub hdr: virtio_snd_hdr,
29    pub jack_id: Le32,
30}
31
32#[derive(Copy, Clone, Default, FromBytes, Immutable, IntoBytes, KnownLayout)]
33#[repr(C)]
34pub struct virtio_snd_event {
35    pub hdr: virtio_snd_hdr,
36    pub data: Le32,
37}
38
39#[derive(Copy, Clone, Default, FromBytes, Immutable, IntoBytes, KnownLayout)]
40#[repr(C)]
41pub struct virtio_snd_query_info {
42    pub hdr: virtio_snd_hdr,
43    pub start_id: Le32,
44    pub count: Le32,
45    pub size: Le32,
46}
47
48#[derive(
49    Copy,
50    Clone,
51    Default,
52    FromBytes,
53    Immutable,
54    IntoBytes,
55    KnownLayout,
56    Serialize,
57    Deserialize,
58    PartialEq,
59    Eq,
60    Debug,
61)]
62#[repr(C)]
63pub struct virtio_snd_info {
64    pub hda_fn_nid: Le32,
65}
66
67#[derive(
68    Copy,
69    Clone,
70    Default,
71    FromBytes,
72    Immutable,
73    IntoBytes,
74    KnownLayout,
75    Serialize,
76    Deserialize,
77    PartialEq,
78    Eq,
79    Debug,
80)]
81#[repr(C)]
82pub struct virtio_snd_pcm_info {
83    pub hdr: virtio_snd_info,
84    pub features: Le32, /* 1 << VIRTIO_SND_PCM_F_XXX */
85    pub formats: Le64,  /* 1 << VIRTIO_SND_PCM_FMT_XXX */
86    pub rates: Le64,    /* 1 << VIRTIO_SND_PCM_RATE_XXX */
87    pub direction: u8,
88    pub channels_min: u8,
89    pub channels_max: u8,
90
91    pub padding: [u8; 5],
92}
93
94#[derive(
95    Copy, Clone, Default, FromBytes, Immutable, IntoBytes, KnownLayout, Serialize, Deserialize,
96)]
97#[repr(C)]
98pub struct virtio_snd_pcm_hdr {
99    pub hdr: virtio_snd_hdr,
100    pub stream_id: Le32,
101}
102
103#[derive(
104    Copy, Clone, Default, FromBytes, Immutable, IntoBytes, KnownLayout, Serialize, Deserialize,
105)]
106#[repr(C)]
107pub struct virtio_snd_pcm_set_params {
108    pub hdr: virtio_snd_pcm_hdr,
109    pub buffer_bytes: Le32,
110    pub period_bytes: Le32,
111    pub features: Le32, /* 1 << VIRTIO_SND_PCM_F_XXX */
112    pub channels: u8,
113    pub format: u8,
114    pub rate: u8,
115    pub padding: u8,
116}
117
118#[derive(Copy, Clone, FromBytes, Immutable, IntoBytes, KnownLayout)]
119#[repr(C)]
120pub struct virtio_snd_pcm_xfer {
121    pub stream_id: Le32,
122}
123
124#[derive(Copy, Clone, Default, FromBytes, Immutable, IntoBytes, KnownLayout)]
125#[repr(C)]
126pub struct virtio_snd_pcm_status {
127    pub status: Le32,
128    pub latency_bytes: Le32,
129}
130
131impl virtio_snd_pcm_status {
132    pub fn new(status: StatusCode, latency_bytes: u32) -> Self {
133        Self {
134            status: Le32::from(status as u32),
135            latency_bytes: Le32::from(latency_bytes),
136        }
137    }
138}
139
140#[derive(
141    Copy,
142    Clone,
143    Default,
144    FromBytes,
145    Immutable,
146    IntoBytes,
147    KnownLayout,
148    Serialize,
149    Deserialize,
150    PartialEq,
151    Eq,
152    Debug,
153)]
154#[repr(C)]
155pub struct virtio_snd_jack_info {
156    pub hdr: virtio_snd_info,
157    pub features: Le32, /* 1 << VIRTIO_SND_JACK_F_XXX */
158    pub hda_reg_defconf: Le32,
159    pub hda_reg_caps: Le32,
160    pub connected: u8,
161    pub padding: [u8; 7],
162}
163
164#[derive(Copy, Clone, Default, FromBytes, Immutable, IntoBytes, KnownLayout)]
165#[repr(C)]
166pub struct virtio_snd_jack_remap {
167    pub hdr: virtio_snd_jack_hdr, /* .code = VIRTIO_SND_R_JACK_REMAP */
168    pub association: Le32,
169    pub sequence: Le32,
170}
171
172#[derive(
173    Copy,
174    Clone,
175    Default,
176    FromBytes,
177    Immutable,
178    IntoBytes,
179    KnownLayout,
180    Serialize,
181    Deserialize,
182    PartialEq,
183    Eq,
184    Debug,
185)]
186#[repr(C)]
187pub struct virtio_snd_chmap_info {
188    pub hdr: virtio_snd_info,
189    pub direction: u8,
190    pub channels: u8,
191    pub positions: [u8; VIRTIO_SND_CHMAP_MAX_SIZE],
192}
devices/virtio/snd/layout.rs

devices/virtio/snd/
layout.rs
