| /***************************************************************************** |
| * Copyright 2011 Broadcom Corporation. All rights reserved. |
| * |
| * Unless you and Broadcom execute a separate written software license |
| * agreement governing use of this software, this software is licensed to you |
| * under the terms of the GNU General Public License version 2, available at |
| * http://www.broadcom.com/licenses/GPLv2.php (the "GPL"). |
| * |
| * Notwithstanding the above, under no circumstances may you combine this |
| * software in any way with any other Broadcom software provided under a |
| * license other than the GPL, without Broadcom's express prior written |
| * consent. |
| *****************************************************************************/ |
| |
| #ifndef _VC_AUDIO_DEFS_H_ |
| #define _VC_AUDIO_DEFS_H_ |
| |
| #define VC_AUDIOSERV_MIN_VER 1 |
| #define VC_AUDIOSERV_VER 2 |
| |
| /* FourCC code used for VCHI connection */ |
| #define VC_AUDIO_SERVER_NAME MAKE_FOURCC("AUDS") |
| |
| /* |
| * List of screens that are currently supported |
| * All message types supported for HOST->VC direction |
| */ |
| |
| enum vc_audio_msg_type { |
| VC_AUDIO_MSG_TYPE_RESULT, // Generic result |
| VC_AUDIO_MSG_TYPE_COMPLETE, // Generic result |
| VC_AUDIO_MSG_TYPE_CONFIG, // Configure audio |
| VC_AUDIO_MSG_TYPE_CONTROL, // Configure audio |
| VC_AUDIO_MSG_TYPE_OPEN, // Configure audio |
| VC_AUDIO_MSG_TYPE_CLOSE, // Configure audio |
| VC_AUDIO_MSG_TYPE_START, // Configure audio |
| VC_AUDIO_MSG_TYPE_STOP, // Configure audio |
| VC_AUDIO_MSG_TYPE_WRITE, // Configure audio |
| VC_AUDIO_MSG_TYPE_MAX |
| }; |
| |
| /* configure the audio */ |
| |
| struct vc_audio_config { |
| u32 channels; |
| u32 samplerate; |
| u32 bps; |
| }; |
| |
| struct vc_audio_control { |
| u32 volume; |
| u32 dest; |
| }; |
| |
| struct vc_audio_open { |
| u32 dummy; |
| }; |
| |
| struct vc_audio_close { |
| u32 dummy; |
| }; |
| |
| struct vc_audio_start { |
| u32 dummy; |
| }; |
| |
| struct vc_audio_stop { |
| u32 draining; |
| }; |
| |
| /* configure the write audio samples */ |
| struct vc_audio_write { |
| u32 count; // in bytes |
| u32 cookie1; |
| u32 cookie2; |
| s16 silence; |
| s16 max_packet; |
| }; |
| |
| /* Generic result for a request (VC->HOST) */ |
| struct vc_audio_result { |
| s32 success; // Success value |
| }; |
| |
| /* Generic result for a request (VC->HOST) */ |
| struct vc_audio_complete { |
| s32 count; // Success value |
| u32 cookie1; |
| u32 cookie2; |
| }; |
| |
| /* Message header for all messages in HOST->VC direction */ |
| struct vc_audio_msg { |
| s32 type; /* Message type (VC_AUDIO_MSG_TYPE) */ |
| union { |
| struct vc_audio_config config; |
| struct vc_audio_control control; |
| struct vc_audio_open open; |
| struct vc_audio_close close; |
| struct vc_audio_start start; |
| struct vc_audio_stop stop; |
| struct vc_audio_write write; |
| struct vc_audio_result result; |
| struct vc_audio_complete complete; |
| } u; |
| }; |
| |
| #endif /* _VC_AUDIO_DEFS_H_ */ |
