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 codes used for VCHI communication */
11 #define VC_AUDIO_WRITE_COOKIE1 VCHIQ_MAKE_FOURCC('B', 'C', 'M', 'A')
12 #define VC_AUDIO_WRITE_COOKIE2 VCHIQ_MAKE_FOURCC('D', 'A', 'T', 'A')
15 * List of screens that are currently supported
16 * All message types supported for HOST->VC direction
19 enum vc_audio_msg_type {
20 VC_AUDIO_MSG_TYPE_RESULT, // Generic result
21 VC_AUDIO_MSG_TYPE_COMPLETE, // Generic result
22 VC_AUDIO_MSG_TYPE_CONFIG, // Configure audio
23 VC_AUDIO_MSG_TYPE_CONTROL, // Configure audio
24 VC_AUDIO_MSG_TYPE_OPEN, // Configure audio
25 VC_AUDIO_MSG_TYPE_CLOSE, // Configure audio
26 VC_AUDIO_MSG_TYPE_START, // Configure audio
27 VC_AUDIO_MSG_TYPE_STOP, // Configure audio
28 VC_AUDIO_MSG_TYPE_WRITE, // Configure audio
32 /* configure the audio */
34 struct vc_audio_config {
40 struct vc_audio_control {
45 struct vc_audio_open {
49 struct vc_audio_close {
53 struct vc_audio_start {
57 struct vc_audio_stop {
61 /* configure the write audio samples */
62 struct vc_audio_write {
63 u32 count; // in bytes
70 /* Generic result for a request (VC->HOST) */
71 struct vc_audio_result {
72 s32 success; // Success value
75 /* Generic result for a request (VC->HOST) */
76 struct vc_audio_complete {
77 s32 count; // Success value
82 /* Message header for all messages in HOST->VC direction */
84 s32 type; /* Message type (VC_AUDIO_MSG_TYPE) */
86 struct vc_audio_config config;
87 struct vc_audio_control control;
88 struct vc_audio_open open;
89 struct vc_audio_close close;
90 struct vc_audio_start start;
91 struct vc_audio_stop stop;
92 struct vc_audio_write write;
93 struct vc_audio_result result;
94 struct vc_audio_complete complete;
98 #endif /* _VC_AUDIO_DEFS_H_ */