1 /****************************************************************************** 2 * 3 * Copyright (C) 2002-2012 Broadcom Corporation 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 19 /****************************************************************************** 20 * 21 * This contains constants definitions and other information from the AVDTP 22 * specification. This file is intended for use internal to AVDT only. 23 * 24 ******************************************************************************/ 25 #ifndef AVDT_DEFS_H 26 #define AVDT_DEFS_H 27 28 /***************************************************************************** 29 ** constants 30 *****************************************************************************/ 31 32 /* signalling packet type */ 33 #define AVDT_PKT_TYPE_SINGLE 0 /* single packet */ 34 #define AVDT_PKT_TYPE_START 1 /* start packet */ 35 #define AVDT_PKT_TYPE_CONT 2 /* continue packet */ 36 #define AVDT_PKT_TYPE_END 3 /* end packet */ 37 38 /* signalling message type */ 39 #define AVDT_MSG_TYPE_CMD 0 /* command */ 40 #define AVDT_MSG_TYPE_GRJ 1 /* general reject */ 41 #define AVDT_MSG_TYPE_RSP 2 /* response accept */ 42 #define AVDT_MSG_TYPE_REJ 3 /* response reject */ 43 44 /* signalling messages */ 45 #define AVDT_SIG_DISCOVER 1 /* discover */ 46 #define AVDT_SIG_GETCAP 2 /* get capabilities */ 47 #define AVDT_SIG_SETCONFIG 3 /* set configuration */ 48 #define AVDT_SIG_GETCONFIG 4 /* get configuration */ 49 #define AVDT_SIG_RECONFIG 5 /* reconfigure */ 50 #define AVDT_SIG_OPEN 6 /* open */ 51 #define AVDT_SIG_START 7 /* start */ 52 #define AVDT_SIG_CLOSE 8 /* close */ 53 #define AVDT_SIG_SUSPEND 9 /* suspend */ 54 #define AVDT_SIG_ABORT 10 /* abort */ 55 #define AVDT_SIG_SECURITY 11 /* security control */ 56 #define AVDT_SIG_GET_ALLCAP 12 /* get all capabilities */ 57 #define AVDT_SIG_DELAY_RPT 13 /* delay report */ 58 59 /* maximum signal value */ 60 #define AVDT_SIG_MAX AVDT_SIG_DELAY_RPT 61 62 /* used for general reject */ 63 #define AVDT_SIG_NONE 0 64 65 /* some maximum and minimum sizes of signalling messages */ 66 #define AVDT_DISCOVER_REQ_MIN 1 67 #define AVDT_DISCOVER_REQ_MAX 124 68 69 /* service category information element field values */ 70 #define AVDT_CAT_TRANS 1 /* Media Transport */ 71 #define AVDT_CAT_REPORT 2 /* Reporting */ 72 #define AVDT_CAT_RECOV 3 /* Recovery */ 73 #define AVDT_CAT_PROTECT 4 /* Content Protection */ 74 #define AVDT_CAT_HDRCMP 5 /* Header Compression */ 75 #define AVDT_CAT_MUX 6 /* Multiplexing */ 76 #define AVDT_CAT_CODEC 7 /* Media Codec */ 77 #define AVDT_CAT_DELAY_RPT 8 /* Delay Reporting */ 78 #define AVDT_CAT_MAX_CUR AVDT_CAT_DELAY_RPT 79 80 /* min/max lengths of service category information elements */ 81 #define AVDT_LEN_TRANS_MIN 0 82 #define AVDT_LEN_REPORT_MIN 0 83 #define AVDT_LEN_RECOV_MIN 3 84 #define AVDT_LEN_PROTECT_MIN 2 85 #define AVDT_LEN_HDRCMP_MIN 1 86 #define AVDT_LEN_MUX_MIN 3 87 #define AVDT_LEN_CODEC_MIN 2 88 #define AVDT_LEN_DELAY_RPT_MIN 0 89 90 #define AVDT_LEN_TRANS_MAX 0 91 #define AVDT_LEN_REPORT_MAX 0 92 #define AVDT_LEN_RECOV_MAX 3 93 #define AVDT_LEN_PROTECT_MAX 255 94 #define AVDT_LEN_HDRCMP_MAX 1 95 #define AVDT_LEN_MUX_MAX 7 96 #define AVDT_LEN_CODEC_MAX 255 97 #define AVDT_LEN_DELAY_RPT_MAX 0 98 99 /* minimum possible size of configuration or capabilities data */ 100 #define AVDT_LEN_CFG_MIN 2 101 102 /* minimum and maximum lengths for different message types */ 103 #define AVDT_LEN_SINGLE 1 104 #define AVDT_LEN_SETCONFIG_MIN 2 105 #define AVDT_LEN_RECONFIG_MIN 1 106 #define AVDT_LEN_MULTI_MIN 1 107 #define AVDT_LEN_SECURITY_MIN 1 108 #define AVDT_LEN_DELAY_RPT 3 109 110 /* header lengths for different packet types */ 111 #define AVDT_LEN_TYPE_SINGLE 2 /* single packet */ 112 #define AVDT_LEN_TYPE_START 3 /* start packet */ 113 #define AVDT_LEN_TYPE_CONT 1 /* continue packet */ 114 #define AVDT_LEN_TYPE_END 1 /* end packet */ 115 116 /* length of general reject message */ 117 #define AVDT_LEN_GEN_REJ 2 118 119 /* recovery service capabilities information elements */ 120 #define AVDT_RECOV_MRWS_MIN 0x01 /* min value for maximum recovery window */ 121 #define AVDT_RECOV_MRWS_MAX 0x18 /* max value for maximum recovery window */ 122 #define AVDT_RECOV_MNMP_MIN 0x01 /* min value for maximum number of media packets */ 123 #define AVDT_RECOV_MNMP_MAX 0x18 /* max value for maximum number of media packets */ 124 125 /* SEID value range */ 126 #define AVDT_SEID_MIN 0x01 127 #define AVDT_SEID_MAX 0x3E 128 129 /* first byte of media packet header */ 130 #define AVDT_MEDIA_OCTET1 0x80 131 132 /* for adaptation layer header */ 133 #define AVDT_ALH_LCODE_MASK 0x03 /* coding of length field */ 134 #define AVDT_ALH_LCODE_NONE 0x00 /* No length field present. Take length from l2cap */ 135 #define AVDT_ALH_LCODE_16BIT 0x01 /* 16bit length field */ 136 #define AVDT_ALH_LCODE_9BITM0 0x02 /* 9 bit length field, MSB = 0, 8 LSBs in 1 octet following */ 137 #define AVDT_ALH_LCODE_9BITM1 0x03 /* 9 bit length field, MSB = 1, 8 LSBs in 1 octet following */ 138 139 #define AVDT_ALH_FRAG_MASK 0x04 /* set this for continuation packet */ 140 141 /***************************************************************************** 142 ** message parsing and building macros 143 *****************************************************************************/ 144 145 #define AVDT_MSG_PRS_HDR(p, lbl, pkt, msg) \ 146 lbl = *(p) >> 4; \ 147 pkt = (*(p) >> 2) & 0x03; \ 148 msg = *(p)++ & 0x03; 149 150 #define AVDT_MSG_PRS_DISC(p, seid, in_use, type, tsep) \ 151 seid = *(p) >> 2; \ 152 in_use = (*(p)++ >> 1) & 0x01; \ 153 type = *(p) >> 4; \ 154 tsep = (*(p)++ >> 3) & 0x01; 155 156 #define AVDT_MSG_PRS_SIG(p, sig) \ 157 sig = *(p)++ & 0x3F; 158 159 #define AVDT_MSG_PRS_SEID(p, seid) \ 160 seid = *(p)++ >> 2; 161 162 #define AVDT_MSG_PRS_PKT_TYPE(p, pkt) \ 163 pkt = (*(p) >> 2) & 0x03; 164 165 #define AVDT_MSG_PRS_OCTET1(p, o_v, o_p, o_x, o_cc) \ 166 o_v = *(p) >> 6; \ 167 o_p = (*(p) >> 5) & 0x01; \ 168 o_x = (*(p) >> 4) & 0x01; \ 169 o_cc = *(p)++ & 0x0F; 170 171 #define AVDT_MSG_PRS_RPT_OCTET1(p, o_v, o_p, o_cc) \ 172 o_v = *(p) >> 6; \ 173 o_p = (*(p) >> 5) & 0x01; \ 174 o_cc = *(p)++ & 0x1F; 175 176 #define AVDT_MSG_PRS_M_PT(p, m_pt, marker) \ 177 marker = *(p) >> 7; \ 178 m_pt = *(p)++ & 0x7F; 179 180 #define AVDT_MSG_BLD_HDR(p, lbl, pkt, msg) \ 181 *(p)++ = (UINT8) ((lbl) << 4) | ((pkt) << 2) | (msg); 182 183 #define AVDT_MSG_BLD_DISC(p, seid, in_use, type, tsep) \ 184 *(p)++ = (UINT8) (((seid) << 2) | ((in_use) << 1)); \ 185 *(p)++ = (UINT8) (((type) << 4) | ((tsep) << 3)); 186 187 #define AVDT_MSG_BLD_SIG(p, sig) \ 188 *(p)++ = (UINT8) (sig); 189 190 #define AVDT_MSG_BLD_SEID(p, seid) \ 191 *(p)++ = (UINT8) ((seid) << 2); 192 193 #define AVDT_MSG_BLD_ERR(p, err) \ 194 *(p)++ = (UINT8) (err); 195 196 #define AVDT_MSG_BLD_PARAM(p, param) \ 197 *(p)++ = (UINT8) (param); 198 199 #define AVDT_MSG_BLD_NOSP(p, nosp) \ 200 *(p)++ = (UINT8) (nosp); 201 202 #endif /* AVDT_DEFS_H */ 203 204