1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright 2011 Broadcom Corporation. All rights reserved. */
4 #ifndef _VC_AUDIO_DEFS_H_
5 #define _VC_AUDIO_DEFS_H_
7 #define VC_AUDIOSERV_MIN_VER 1
8 #define VC_AUDIOSERV_VER 2
10 /* FourCC code used for VCHI connection */
11 #define VC_AUDIO_SERVER_NAME MAKE_FOURCC("AUDS")
14 * List of screens that are currently supported
15 * All message types supported for HOST->VC direction
18 enum vc_audio_msg_type {
19 VC_AUDIO_MSG_TYPE_RESULT, // Generic result
20 VC_AUDIO_MSG_TYPE_COMPLETE, // Generic result
21 VC_AUDIO_MSG_TYPE_CONFIG, // Configure audio
22 VC_AUDIO_MSG_TYPE_CONTROL, // Configure audio
23 VC_AUDIO_MSG_TYPE_OPEN, // Configure audio
24 VC_AUDIO_MSG_TYPE_CLOSE, // Configure audio
25 VC_AUDIO_MSG_TYPE_START, // Configure audio
26 VC_AUDIO_MSG_TYPE_STOP, // Configure audio
27 VC_AUDIO_MSG_TYPE_WRITE, // Configure audio
31 /* configure the audio */
33 struct vc_audio_config {
39 struct vc_audio_control {
44 struct vc_audio_open {
48 struct vc_audio_close {
52 struct vc_audio_start {
56 struct vc_audio_stop {
60 /* configure the write audio samples */
61 struct vc_audio_write {
62 u32 count; // in bytes
69 /* Generic result for a request (VC->HOST) */
70 struct vc_audio_result {
71 s32 success; // Success value
74 /* Generic result for a request (VC->HOST) */
75 struct vc_audio_complete {
76 s32 count; // Success value
81 /* Message header for all messages in HOST->VC direction */
83 s32 type; /* Message type (VC_AUDIO_MSG_TYPE) */
85 struct vc_audio_config config;
86 struct vc_audio_control control;
87 struct vc_audio_open open;
88 struct vc_audio_close close;
89 struct vc_audio_start start;
90 struct vc_audio_stop stop;
91 struct vc_audio_write write;
92 struct vc_audio_result result;
93 struct vc_audio_complete complete;
97 #endif /* _VC_AUDIO_DEFS_H_ */