bcm2835_vcaudioreg.h revision 1.2.4.2
1 1.2.4.2 tls /* 2 1.2.4.2 tls Copyright (c) 2012, Broadcom Europe Ltd 3 1.2.4.2 tls All rights reserved. 4 1.2.4.2 tls 5 1.2.4.2 tls Redistribution and use in source and binary forms, with or without 6 1.2.4.2 tls modification, are permitted provided that the following conditions are met: 7 1.2.4.2 tls * Redistributions of source code must retain the above copyright 8 1.2.4.2 tls notice, this list of conditions and the following disclaimer. 9 1.2.4.2 tls * Redistributions in binary form must reproduce the above copyright 10 1.2.4.2 tls notice, this list of conditions and the following disclaimer in the 11 1.2.4.2 tls documentation and/or other materials provided with the distribution. 12 1.2.4.2 tls * Neither the name of the copyright holder nor the 13 1.2.4.2 tls names of its contributors may be used to endorse or promote products 14 1.2.4.2 tls derived from this software without specific prior written permission. 15 1.2.4.2 tls 16 1.2.4.2 tls THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 17 1.2.4.2 tls ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 1.2.4.2 tls WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 1.2.4.2 tls DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY 20 1.2.4.2 tls DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 1.2.4.2 tls (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 1.2.4.2 tls LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 23 1.2.4.2 tls ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 1.2.4.2 tls (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 25 1.2.4.2 tls SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 1.2.4.2 tls */ 27 1.2.4.2 tls 28 1.2.4.2 tls #ifndef _VC_AUDIO_DEFS_H_ 29 1.2.4.2 tls #define _VC_AUDIO_DEFS_H_ 30 1.2.4.2 tls 31 1.2.4.2 tls #define VC_AUDIOSERV_MIN_VER 1 32 1.2.4.2 tls #define VC_AUDIOSERV_VER 2 33 1.2.4.2 tls 34 1.2.4.2 tls // FourCC code used for VCHI connection 35 1.2.4.2 tls #define VC_AUDIO_SERVER_NAME MAKE_FOURCC("AUDS") 36 1.2.4.2 tls 37 1.2.4.2 tls // Maximum message length 38 1.2.4.2 tls #define VC_AUDIO_MAX_MSG_LEN (sizeof( VC_AUDIO_MSG_T )) 39 1.2.4.2 tls 40 1.2.4.2 tls // List of screens that are currently supported 41 1.2.4.2 tls // All message types supported for HOST->VC direction 42 1.2.4.2 tls typedef enum 43 1.2.4.2 tls { 44 1.2.4.2 tls VC_AUDIO_MSG_TYPE_RESULT, // Generic result 45 1.2.4.2 tls VC_AUDIO_MSG_TYPE_COMPLETE, // playback of samples complete 46 1.2.4.2 tls VC_AUDIO_MSG_TYPE_CONFIG, // Configure 47 1.2.4.2 tls VC_AUDIO_MSG_TYPE_CONTROL, // control 48 1.2.4.2 tls VC_AUDIO_MSG_TYPE_OPEN, // open 49 1.2.4.2 tls VC_AUDIO_MSG_TYPE_CLOSE, // close/shutdown 50 1.2.4.2 tls VC_AUDIO_MSG_TYPE_START, // start output (i.e. resume) 51 1.2.4.2 tls VC_AUDIO_MSG_TYPE_STOP, // stop output (i.e. pause) 52 1.2.4.2 tls VC_AUDIO_MSG_TYPE_WRITE, // write samples 53 1.2.4.2 tls VC_AUDIO_MSG_TYPE_MAX 54 1.2.4.2 tls 55 1.2.4.2 tls } VC_AUDIO_MSG_TYPE; 56 1.2.4.2 tls 57 1.2.4.2 tls #if 0 58 1.2.4.2 tls static const char *vc_audio_msg_type_names[] = { 59 1.2.4.2 tls "VC_AUDIO_MSG_TYPE_RESULT", 60 1.2.4.2 tls "VC_AUDIO_MSG_TYPE_COMPLETE", 61 1.2.4.2 tls "VC_AUDIO_MSG_TYPE_CONFIG", 62 1.2.4.2 tls "VC_AUDIO_MSG_TYPE_CONTROL", 63 1.2.4.2 tls "VC_AUDIO_MSG_TYPE_OPEN", 64 1.2.4.2 tls "VC_AUDIO_MSG_TYPE_CLOSE", 65 1.2.4.2 tls "VC_AUDIO_MSG_TYPE_START", 66 1.2.4.2 tls "VC_AUDIO_MSG_TYPE_STOP", 67 1.2.4.2 tls "VC_AUDIO_MSG_TYPE_WRITE", 68 1.2.4.2 tls "VC_AUDIO_MSG_TYPE_MAX" 69 1.2.4.2 tls }; 70 1.2.4.2 tls #endif 71 1.2.4.2 tls 72 1.2.4.2 tls // configure the audio 73 1.2.4.2 tls typedef struct 74 1.2.4.2 tls { 75 1.2.4.2 tls uint32_t channels; 76 1.2.4.2 tls uint32_t samplerate; 77 1.2.4.2 tls uint32_t bps; 78 1.2.4.2 tls 79 1.2.4.2 tls } VC_AUDIO_CONFIG_T; 80 1.2.4.2 tls 81 1.2.4.2 tls typedef struct 82 1.2.4.2 tls { 83 1.2.4.2 tls uint32_t volume; 84 1.2.4.2 tls uint32_t dest; 85 1.2.4.2 tls 86 1.2.4.2 tls } VC_AUDIO_CONTROL_T; 87 1.2.4.2 tls 88 1.2.4.2 tls // audio 89 1.2.4.2 tls typedef struct 90 1.2.4.2 tls { 91 1.2.4.2 tls uint32_t dummy; 92 1.2.4.2 tls 93 1.2.4.2 tls } VC_AUDIO_OPEN_T; 94 1.2.4.2 tls 95 1.2.4.2 tls // audio 96 1.2.4.2 tls typedef struct 97 1.2.4.2 tls { 98 1.2.4.2 tls uint32_t dummy; 99 1.2.4.2 tls 100 1.2.4.2 tls } VC_AUDIO_CLOSE_T; 101 1.2.4.2 tls // audio 102 1.2.4.2 tls typedef struct 103 1.2.4.2 tls { 104 1.2.4.2 tls uint32_t dummy; 105 1.2.4.2 tls 106 1.2.4.2 tls } VC_AUDIO_START_T; 107 1.2.4.2 tls // audio 108 1.2.4.2 tls typedef struct 109 1.2.4.2 tls { 110 1.2.4.2 tls uint32_t draining; 111 1.2.4.2 tls 112 1.2.4.2 tls } VC_AUDIO_STOP_T; 113 1.2.4.2 tls 114 1.2.4.2 tls // configure the write audio samples 115 1.2.4.2 tls typedef struct 116 1.2.4.2 tls { 117 1.2.4.2 tls uint32_t count; // in bytes 118 1.2.4.2 tls void *callback; 119 1.2.4.2 tls void *cookie; 120 1.2.4.2 tls uint16_t silence; 121 1.2.4.2 tls uint16_t max_packet; 122 1.2.4.2 tls } VC_AUDIO_WRITE_T; 123 1.2.4.2 tls 124 1.2.4.2 tls // Generic result for a request (VC->HOST) 125 1.2.4.2 tls typedef struct 126 1.2.4.2 tls { 127 1.2.4.2 tls int32_t success; // Success value 128 1.2.4.2 tls 129 1.2.4.2 tls } VC_AUDIO_RESULT_T; 130 1.2.4.2 tls 131 1.2.4.2 tls // Generic result for a request (VC->HOST) 132 1.2.4.2 tls typedef struct 133 1.2.4.2 tls { 134 1.2.4.2 tls int32_t count; // Success value 135 1.2.4.2 tls void *callback; 136 1.2.4.2 tls void *cookie; 137 1.2.4.2 tls } VC_AUDIO_COMPLETE_T; 138 1.2.4.2 tls 139 1.2.4.2 tls // Message header for all messages in HOST->VC direction 140 1.2.4.2 tls typedef struct 141 1.2.4.2 tls { 142 1.2.4.2 tls int32_t type; // Message type (VC_AUDIO_MSG_TYPE) 143 1.2.4.2 tls union 144 1.2.4.2 tls { 145 1.2.4.2 tls VC_AUDIO_CONFIG_T config; 146 1.2.4.2 tls VC_AUDIO_CONTROL_T control; 147 1.2.4.2 tls VC_AUDIO_OPEN_T open; 148 1.2.4.2 tls VC_AUDIO_CLOSE_T close; 149 1.2.4.2 tls VC_AUDIO_START_T start; 150 1.2.4.2 tls VC_AUDIO_STOP_T stop; 151 1.2.4.2 tls VC_AUDIO_WRITE_T write; 152 1.2.4.2 tls VC_AUDIO_RESULT_T result; 153 1.2.4.2 tls VC_AUDIO_COMPLETE_T complete; 154 1.2.4.2 tls } u; 155 1.2.4.2 tls } VC_AUDIO_MSG_T; 156 1.2.4.2 tls 157 1.2.4.2 tls 158 1.2.4.2 tls #endif // _VC_AUDIO_DEFS_H_ 159
Indexes created Sun Nov 02 07:10:05 GMT 2025