bcm2835_vcaudioreg.h revision 1.3.2.2
1 1.3.2.2 yamt /* 2 1.3.2.2 yamt Copyright (c) 2012, Broadcom Europe Ltd 3 1.3.2.2 yamt All rights reserved. 4 1.3.2.2 yamt 5 1.3.2.2 yamt Redistribution and use in source and binary forms, with or without 6 1.3.2.2 yamt modification, are permitted provided that the following conditions are met: 7 1.3.2.2 yamt * Redistributions of source code must retain the above copyright 8 1.3.2.2 yamt notice, this list of conditions and the following disclaimer. 9 1.3.2.2 yamt * Redistributions in binary form must reproduce the above copyright 10 1.3.2.2 yamt notice, this list of conditions and the following disclaimer in the 11 1.3.2.2 yamt documentation and/or other materials provided with the distribution. 12 1.3.2.2 yamt * Neither the name of the copyright holder nor the 13 1.3.2.2 yamt names of its contributors may be used to endorse or promote products 14 1.3.2.2 yamt derived from this software without specific prior written permission. 15 1.3.2.2 yamt 16 1.3.2.2 yamt THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 17 1.3.2.2 yamt ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 18 1.3.2.2 yamt WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 1.3.2.2 yamt DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY 20 1.3.2.2 yamt DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 1.3.2.2 yamt (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 1.3.2.2 yamt LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 23 1.3.2.2 yamt ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 1.3.2.2 yamt (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 25 1.3.2.2 yamt SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 1.3.2.2 yamt */ 27 1.3.2.2 yamt 28 1.3.2.2 yamt #ifndef _VC_AUDIO_DEFS_H_ 29 1.3.2.2 yamt #define _VC_AUDIO_DEFS_H_ 30 1.3.2.2 yamt 31 1.3.2.2 yamt #define VC_AUDIOSERV_MIN_VER 1 32 1.3.2.2 yamt #define VC_AUDIOSERV_VER 2 33 1.3.2.2 yamt 34 1.3.2.2 yamt // FourCC code used for VCHI connection 35 1.3.2.2 yamt #define VC_AUDIO_SERVER_NAME MAKE_FOURCC("AUDS") 36 1.3.2.2 yamt 37 1.3.2.2 yamt // Maximum message length 38 1.3.2.2 yamt #define VC_AUDIO_MAX_MSG_LEN (sizeof( VC_AUDIO_MSG_T )) 39 1.3.2.2 yamt 40 1.3.2.2 yamt // List of screens that are currently supported 41 1.3.2.2 yamt // All message types supported for HOST->VC direction 42 1.3.2.2 yamt typedef enum 43 1.3.2.2 yamt { 44 1.3.2.2 yamt VC_AUDIO_MSG_TYPE_RESULT, // Generic result 45 1.3.2.2 yamt VC_AUDIO_MSG_TYPE_COMPLETE, // playback of samples complete 46 1.3.2.2 yamt VC_AUDIO_MSG_TYPE_CONFIG, // Configure 47 1.3.2.2 yamt VC_AUDIO_MSG_TYPE_CONTROL, // control 48 1.3.2.2 yamt VC_AUDIO_MSG_TYPE_OPEN, // open 49 1.3.2.2 yamt VC_AUDIO_MSG_TYPE_CLOSE, // close/shutdown 50 1.3.2.2 yamt VC_AUDIO_MSG_TYPE_START, // start output (i.e. resume) 51 1.3.2.2 yamt VC_AUDIO_MSG_TYPE_STOP, // stop output (i.e. pause) 52 1.3.2.2 yamt VC_AUDIO_MSG_TYPE_WRITE, // write samples 53 1.3.2.2 yamt VC_AUDIO_MSG_TYPE_MAX 54 1.3.2.2 yamt 55 1.3.2.2 yamt } VC_AUDIO_MSG_TYPE; 56 1.3.2.2 yamt 57 1.3.2.2 yamt #if 0 58 1.3.2.2 yamt static const char *vc_audio_msg_type_names[] = { 59 1.3.2.2 yamt "VC_AUDIO_MSG_TYPE_RESULT", 60 1.3.2.2 yamt "VC_AUDIO_MSG_TYPE_COMPLETE", 61 1.3.2.2 yamt "VC_AUDIO_MSG_TYPE_CONFIG", 62 1.3.2.2 yamt "VC_AUDIO_MSG_TYPE_CONTROL", 63 1.3.2.2 yamt "VC_AUDIO_MSG_TYPE_OPEN", 64 1.3.2.2 yamt "VC_AUDIO_MSG_TYPE_CLOSE", 65 1.3.2.2 yamt "VC_AUDIO_MSG_TYPE_START", 66 1.3.2.2 yamt "VC_AUDIO_MSG_TYPE_STOP", 67 1.3.2.2 yamt "VC_AUDIO_MSG_TYPE_WRITE", 68 1.3.2.2 yamt "VC_AUDIO_MSG_TYPE_MAX" 69 1.3.2.2 yamt }; 70 1.3.2.2 yamt #endif 71 1.3.2.2 yamt 72 1.3.2.2 yamt // configure the audio 73 1.3.2.2 yamt typedef struct 74 1.3.2.2 yamt { 75 1.3.2.2 yamt uint32_t channels; 76 1.3.2.2 yamt uint32_t samplerate; 77 1.3.2.2 yamt uint32_t bps; 78 1.3.2.2 yamt 79 1.3.2.2 yamt } VC_AUDIO_CONFIG_T; 80 1.3.2.2 yamt 81 1.3.2.2 yamt typedef struct 82 1.3.2.2 yamt { 83 1.3.2.2 yamt uint32_t volume; 84 1.3.2.2 yamt uint32_t dest; 85 1.3.2.2 yamt 86 1.3.2.2 yamt } VC_AUDIO_CONTROL_T; 87 1.3.2.2 yamt 88 1.3.2.2 yamt // audio 89 1.3.2.2 yamt typedef struct 90 1.3.2.2 yamt { 91 1.3.2.2 yamt uint32_t dummy; 92 1.3.2.2 yamt 93 1.3.2.2 yamt } VC_AUDIO_OPEN_T; 94 1.3.2.2 yamt 95 1.3.2.2 yamt // audio 96 1.3.2.2 yamt typedef struct 97 1.3.2.2 yamt { 98 1.3.2.2 yamt uint32_t dummy; 99 1.3.2.2 yamt 100 1.3.2.2 yamt } VC_AUDIO_CLOSE_T; 101 1.3.2.2 yamt // audio 102 1.3.2.2 yamt typedef struct 103 1.3.2.2 yamt { 104 1.3.2.2 yamt uint32_t dummy; 105 1.3.2.2 yamt 106 1.3.2.2 yamt } VC_AUDIO_START_T; 107 1.3.2.2 yamt // audio 108 1.3.2.2 yamt typedef struct 109 1.3.2.2 yamt { 110 1.3.2.2 yamt uint32_t draining; 111 1.3.2.2 yamt 112 1.3.2.2 yamt } VC_AUDIO_STOP_T; 113 1.3.2.2 yamt 114 1.3.2.2 yamt // configure the write audio samples 115 1.3.2.2 yamt typedef struct 116 1.3.2.2 yamt { 117 1.3.2.2 yamt uint32_t count; // in bytes 118 1.3.2.2 yamt void *callback; 119 1.3.2.2 yamt void *cookie; 120 1.3.2.2 yamt uint16_t silence; 121 1.3.2.2 yamt uint16_t max_packet; 122 1.3.2.2 yamt } VC_AUDIO_WRITE_T; 123 1.3.2.2 yamt 124 1.3.2.2 yamt // Generic result for a request (VC->HOST) 125 1.3.2.2 yamt typedef struct 126 1.3.2.2 yamt { 127 1.3.2.2 yamt int32_t success; // Success value 128 1.3.2.2 yamt 129 1.3.2.2 yamt } VC_AUDIO_RESULT_T; 130 1.3.2.2 yamt 131 1.3.2.2 yamt // Generic result for a request (VC->HOST) 132 1.3.2.2 yamt typedef struct 133 1.3.2.2 yamt { 134 1.3.2.2 yamt int32_t count; // Success value 135 1.3.2.2 yamt void *callback; 136 1.3.2.2 yamt void *cookie; 137 1.3.2.2 yamt } VC_AUDIO_COMPLETE_T; 138 1.3.2.2 yamt 139 1.3.2.2 yamt // Message header for all messages in HOST->VC direction 140 1.3.2.2 yamt typedef struct 141 1.3.2.2 yamt { 142 1.3.2.2 yamt int32_t type; // Message type (VC_AUDIO_MSG_TYPE) 143 1.3.2.2 yamt union 144 1.3.2.2 yamt { 145 1.3.2.2 yamt VC_AUDIO_CONFIG_T config; 146 1.3.2.2 yamt VC_AUDIO_CONTROL_T control; 147 1.3.2.2 yamt VC_AUDIO_OPEN_T open; 148 1.3.2.2 yamt VC_AUDIO_CLOSE_T close; 149 1.3.2.2 yamt VC_AUDIO_START_T start; 150 1.3.2.2 yamt VC_AUDIO_STOP_T stop; 151 1.3.2.2 yamt VC_AUDIO_WRITE_T write; 152 1.3.2.2 yamt VC_AUDIO_RESULT_T result; 153 1.3.2.2 yamt VC_AUDIO_COMPLETE_T complete; 154 1.3.2.2 yamt } u; 155 1.3.2.2 yamt } VC_AUDIO_MSG_T; 156 1.3.2.2 yamt 157 1.3.2.2 yamt 158 1.3.2.2 yamt #endif // _VC_AUDIO_DEFS_H_ 159
Indexes created Sun Nov 02 07:10:05 GMT 2025