1 // Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef __BTC_AV_CO_H__ 16 #define __BTC_AV_CO_H__ 17 18 #include "btc_a2dp.h" 19 #include "bta/bta_av_co.h" 20 21 #if (BTA_AV_INCLUDED == TRUE) 22 /******************************************************************************* 23 ** Constants & Macros 24 ********************************************************************************/ 25 26 enum { 27 BTC_SV_AV_AA_SBC_INDEX = 0, 28 BTC_SV_AV_AA_SBC_SINK_INDEX, 29 BTC_SV_AV_AA_SEP_INDEX /* Last index */ 30 }; 31 32 /***************************************************************************** 33 ** Local data 34 *****************************************************************************/ 35 typedef struct { 36 UINT8 sep_info_idx; /* local SEP index (in BTA tables) */ 37 UINT8 seid; /* peer SEP index (in peer tables) */ 38 UINT8 codec_type; /* peer SEP codec type */ 39 UINT8 codec_caps[AVDT_CODEC_SIZE]; /* peer SEP codec capabilities */ 40 UINT8 num_protect; /* peer SEP number of CP elements */ 41 UINT8 protect_info[BTA_AV_CP_INFO_LEN]; /* peer SEP content protection info */ 42 } tBTA_AV_CO_SINK; 43 44 typedef struct { 45 BD_ADDR addr; /* address of audio/video peer */ 46 tBTA_AV_CO_SINK snks[BTC_SV_AV_AA_SEP_INDEX]; /* array of supported sinks */ 47 tBTA_AV_CO_SINK srcs[BTC_SV_AV_AA_SEP_INDEX]; /* array of supported srcs */ 48 UINT8 num_snks; /* total number of sinks at peer */ 49 UINT8 num_srcs; /* total number of srcs at peer */ 50 UINT8 num_seps; /* total number of seids at peer */ 51 UINT8 num_rx_snks; /* number of received sinks */ 52 UINT8 num_rx_srcs; /* number of received srcs */ 53 UINT8 num_sup_snks; /* number of supported sinks in the snks array */ 54 UINT8 num_sup_srcs; /* number of supported srcs in the srcs array */ 55 tBTA_AV_CO_SINK *p_snk; /* currently selected sink */ 56 tBTA_AV_CO_SINK *p_src; /* currently selected src */ 57 UINT8 codec_cfg[AVDT_CODEC_SIZE]; /* current codec configuration */ 58 BOOLEAN cp_active; /* current CP configuration */ 59 BOOLEAN acp; /* acceptor */ 60 BOOLEAN recfg_needed; /* reconfiguration is needed */ 61 BOOLEAN opened; /* opened */ 62 UINT16 mtu; /* maximum transmit unit size */ 63 UINT16 uuid_to_connect; /* uuid of peer device */ 64 } tBTA_AV_CO_PEER; 65 66 typedef struct { 67 BOOLEAN active; 68 UINT8 flag; 69 } tBTA_AV_CO_CP; 70 71 typedef struct { 72 /* Connected peer information */ 73 tBTA_AV_CO_PEER peers[BTA_AV_NUM_STRS]; 74 /* Current codec configuration - access to this variable must be protected */ 75 tBTC_AV_CODEC_INFO codec_cfg; 76 tBTC_AV_CODEC_INFO codec_cfg_setconfig; /* remote peer setconfig preference */ 77 78 tBTA_AV_CO_CP cp; 79 } tBTA_AV_CO_CB; 80 81 /* Control block instance */ 82 #if AVRC_DYNAMIC_MEMORY == FALSE 83 extern tBTA_AV_CO_CB bta_av_co_cb; 84 #else 85 extern tBTA_AV_CO_CB *bta_av_co_cb_ptr; 86 #define bta_av_co_cb (*bta_av_co_cb_ptr) 87 #endif 88 /******************************************************************************* 89 ** Functions 90 ********************************************************************************/ 91 92 /******************************************************************************* 93 ** 94 ** Function bta_av_co_cp_is_active 95 ** 96 ** Description Get the current configuration of content protection 97 ** 98 ** Returns TRUE if the current streaming has CP, FALSE otherwise 99 ** 100 *******************************************************************************/ 101 BOOLEAN bta_av_co_cp_is_active(void); 102 103 /******************************************************************************* 104 ** 105 ** Function bta_av_co_cp_get_flag 106 ** 107 ** Description Get content protection flag 108 ** BTA_AV_CP_SCMS_COPY_NEVER 109 ** BTA_AV_CP_SCMS_COPY_ONCE 110 ** BTA_AV_CP_SCMS_COPY_FREE 111 ** 112 ** Returns The current flag value 113 ** 114 *******************************************************************************/ 115 UINT8 bta_av_co_cp_get_flag(void); 116 117 /******************************************************************************* 118 ** 119 ** Function bta_av_co_cp_set_flag 120 ** 121 ** Description Set content protection flag 122 ** BTA_AV_CP_SCMS_COPY_NEVER 123 ** BTA_AV_CP_SCMS_COPY_ONCE 124 ** BTA_AV_CP_SCMS_COPY_FREE 125 ** 126 ** Returns TRUE if setting the SCMS flag is supported else FALSE 127 ** 128 *******************************************************************************/ 129 BOOLEAN bta_av_co_cp_set_flag(UINT8 cp_flag); 130 131 /******************************************************************************* 132 ** 133 ** Function bta_av_co_audio_codec_reset 134 ** 135 ** Description Reset the current codec configuration 136 ** 137 ** Returns void 138 ** 139 *******************************************************************************/ 140 void bta_av_co_audio_codec_reset(void); 141 142 /******************************************************************************* 143 ** 144 ** Function bta_av_co_audio_codec_supported 145 ** 146 ** Description Check if all opened connections are compatible with a codec 147 ** configuration 148 ** 149 ** Returns TRUE if all opened devices support this codec, FALSE otherwise 150 ** 151 *******************************************************************************/ 152 BOOLEAN bta_av_co_audio_codec_supported(tBTC_AV_STATUS *p_status); 153 154 /******************************************************************************* 155 ** 156 ** Function bta_av_co_audio_set_codec 157 ** 158 ** Description Set the current codec configuration from the feeding type. 159 ** This function is starting to modify the configuration, it 160 ** should be protected. 161 ** 162 ** Returns TRUE if successful, FALSE otherwise 163 ** 164 *******************************************************************************/ 165 BOOLEAN bta_av_co_audio_set_codec(const tBTC_AV_MEDIA_FEEDINGS *p_feeding, tBTC_AV_STATUS *p_status); 166 167 /******************************************************************************* 168 ** 169 ** Function bta_av_co_audio_get_sbc_config 170 ** 171 ** Description Retrieves the SBC codec configuration. If the codec in use 172 ** is not SBC, return the default SBC codec configuration. 173 ** 174 ** Returns TRUE if codec is SBC, FALSE otherwise 175 ** 176 *******************************************************************************/ 177 BOOLEAN bta_av_co_audio_get_sbc_config(tA2D_SBC_CIE *p_sbc_config, UINT16 *p_minmtu); 178 179 /******************************************************************************* 180 ** 181 ** Function bta_av_co_audio_discard_config 182 ** 183 ** Description Discard the codec configuration of a connection 184 ** 185 ** Returns Nothing 186 ** 187 *******************************************************************************/ 188 void bta_av_co_audio_discard_config(tBTA_AV_HNDL hndl); 189 190 /******************************************************************************* 191 ** 192 ** Function bta_av_co_init 193 ** 194 ** Description Initialization 195 ** 196 ** Returns Nothing 197 ** 198 *******************************************************************************/ 199 void bta_av_co_init(void); 200 201 202 /******************************************************************************* 203 ** 204 ** Function bta_av_co_peer_cp_supported 205 ** 206 ** Description Checks if the peer supports CP 207 ** 208 ** Returns TRUE if the peer supports CP 209 ** 210 *******************************************************************************/ 211 BOOLEAN bta_av_co_peer_cp_supported(tBTA_AV_HNDL hndl); 212 213 /******************************************************************************* 214 ** 215 ** Function bta_av_co_get_remote_bitpool_pref 216 ** 217 ** Description Check if remote side did a setconfig within the limits 218 ** of our exported bitpool range. If set we will set the 219 ** remote preference. 220 ** 221 ** Returns TRUE if config set, FALSE otherwize 222 ** 223 *******************************************************************************/ 224 BOOLEAN bta_av_co_get_remote_bitpool_pref(UINT8 *min, UINT8 *max); 225 226 #endif ///BTA_AV_INCLUDED == TRUE 227 228 #endif 229
