/****************************************************************************** * * Copyright (C) 2002-2012 Broadcom Corporation * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ******************************************************************************/ /****************************************************************************** * * This contains constants definitions and other information from the AVDTP * specification. This file is intended for use internal to AVDT only. * ******************************************************************************/ #ifndef AVDT_DEFS_H #define AVDT_DEFS_H /***************************************************************************** * constants ****************************************************************************/ /* signalling packet type */ #define AVDT_PKT_TYPE_SINGLE 0 /* single packet */ #define AVDT_PKT_TYPE_START 1 /* start packet */ #define AVDT_PKT_TYPE_CONT 2 /* continue packet */ #define AVDT_PKT_TYPE_END 3 /* end packet */ /* signalling message type */ #define AVDT_MSG_TYPE_CMD 0 /* command */ #define AVDT_MSG_TYPE_GRJ 1 /* general reject */ #define AVDT_MSG_TYPE_RSP 2 /* response accept */ #define AVDT_MSG_TYPE_REJ 3 /* response reject */ /* signalling messages */ #define AVDT_SIG_DISCOVER 1 /* discover */ #define AVDT_SIG_GETCAP 2 /* get capabilities */ #define AVDT_SIG_SETCONFIG 3 /* set configuration */ #define AVDT_SIG_GETCONFIG 4 /* get configuration */ #define AVDT_SIG_RECONFIG 5 /* reconfigure */ #define AVDT_SIG_OPEN 6 /* open */ #define AVDT_SIG_START 7 /* start */ #define AVDT_SIG_CLOSE 8 /* close */ #define AVDT_SIG_SUSPEND 9 /* suspend */ #define AVDT_SIG_ABORT 10 /* abort */ #define AVDT_SIG_SECURITY 11 /* security control */ #define AVDT_SIG_GET_ALLCAP 12 /* get all capabilities */ #define AVDT_SIG_DELAY_RPT 13 /* delay report */ /* maximum signal value */ #define AVDT_SIG_MAX AVDT_SIG_DELAY_RPT /* used for general reject */ #define AVDT_SIG_NONE 0 /* some maximum and minimum sizes of signalling messages */ #define AVDT_DISCOVER_REQ_MIN 1 #define AVDT_DISCOVER_REQ_MAX 124 /* service category information element field values */ #define AVDT_CAT_TRANS 1 /* Media Transport */ #define AVDT_CAT_REPORT 2 /* Reporting */ #define AVDT_CAT_RECOV 3 /* Recovery */ #define AVDT_CAT_PROTECT 4 /* Content Protection */ #define AVDT_CAT_HDRCMP 5 /* Header Compression */ #define AVDT_CAT_MUX 6 /* Multiplexing */ #define AVDT_CAT_CODEC 7 /* Media Codec */ #define AVDT_CAT_DELAY_RPT 8 /* Delay Reporting */ #define AVDT_CAT_MAX_CUR AVDT_CAT_DELAY_RPT /* min/max lengths of service category information elements */ #define AVDT_LEN_TRANS_MIN 0 #define AVDT_LEN_REPORT_MIN 0 #define AVDT_LEN_RECOV_MIN 3 #define AVDT_LEN_PROTECT_MIN 2 #define AVDT_LEN_HDRCMP_MIN 1 #define AVDT_LEN_MUX_MIN 3 #define AVDT_LEN_CODEC_MIN 2 #define AVDT_LEN_DELAY_RPT_MIN 0 #define AVDT_LEN_TRANS_MAX 0 #define AVDT_LEN_REPORT_MAX 0 #define AVDT_LEN_RECOV_MAX 3 #define AVDT_LEN_PROTECT_MAX 255 #define AVDT_LEN_HDRCMP_MAX 1 #define AVDT_LEN_MUX_MAX 7 #define AVDT_LEN_CODEC_MAX 255 #define AVDT_LEN_DELAY_RPT_MAX 0 /* minimum possible size of configuration or capabilities data */ #define AVDT_LEN_CFG_MIN 2 /* minimum and maximum lengths for different message types */ #define AVDT_LEN_SINGLE 1 #define AVDT_LEN_SETCONFIG_MIN 2 #define AVDT_LEN_RECONFIG_MIN 1 #define AVDT_LEN_MULTI_MIN 1 #define AVDT_LEN_SECURITY_MIN 1 #define AVDT_LEN_DELAY_RPT 3 /* header lengths for different packet types */ #define AVDT_LEN_TYPE_SINGLE 2 /* single packet */ #define AVDT_LEN_TYPE_START 3 /* start packet */ #define AVDT_LEN_TYPE_CONT 1 /* continue packet */ #define AVDT_LEN_TYPE_END 1 /* end packet */ /* length of general reject message */ #define AVDT_LEN_GEN_REJ 2 /* recovery service capabilities information elements */ /* min value for maximum recovery window */ #define AVDT_RECOV_MRWS_MIN 0x01 /* max value for maximum recovery window */ #define AVDT_RECOV_MRWS_MAX 0x18 /* min value for maximum number of media packets */ #define AVDT_RECOV_MNMP_MIN 0x01 /* max value for maximum number of media packets */ #define AVDT_RECOV_MNMP_MAX 0x18 /* SEID value range */ #define AVDT_SEID_MIN 0x01 #define AVDT_SEID_MAX 0x3E /* first byte of media packet header */ #define AVDT_MEDIA_OCTET1 0x80 /* for adaptation layer header */ /* coding of length field */ #define AVDT_ALH_LCODE_MASK 0x03 /* No length field present. Take length from l2cap */ #define AVDT_ALH_LCODE_NONE 0x00 /* 16bit length field */ #define AVDT_ALH_LCODE_16BIT 0x01 /* 9 bit length field, MSB = 0, 8 LSBs in 1 octet following */ #define AVDT_ALH_LCODE_9BITM0 0x02 /* 9 bit length field, MSB = 1, 8 LSBs in 1 octet following */ #define AVDT_ALH_LCODE_9BITM1 0x03 /* set this for continuation packet */ #define AVDT_ALH_FRAG_MASK 0x04 /***************************************************************************** * message parsing and building macros ****************************************************************************/ #define AVDT_MSG_PRS_HDR(p, lbl, pkt, msg) \ do { \ (lbl) = (*(p) >> 4) & 0x0F; \ (pkt) = (*(p) >> 2) & 0x03; \ (msg) = *(p)++ & 0x03; \ } while (0) #define AVDT_MSG_PRS_DISC(p, seid, in_use, type, tsep) \ do { \ (seid) = *(p) >> 2; \ (in_use) = (*(p)++ >> 1) & 0x01; \ (type) = (*(p) >> 4) & 0x0F; \ (tsep) = (*(p)++ >> 3) & 0x01; \ } while (0) #define AVDT_MSG_PRS_SIG(p, sig) \ do { \ (sig) = (*(p)++) & 0x3F; \ } while (0) #define AVDT_MSG_PRS_SEID(p, seid) \ do { \ (seid) = ((*(p)++) >> 2) & 0x3F; \ } while (0) #define AVDT_MSG_PRS_PKT_TYPE(p, pkt) \ do { \ (pkt) = (*(p) >> 2) & 0x03; \ } while (0) #define AVDT_MSG_PRS_OCTET1(p, o_v, o_p, o_x, o_cc) \ do { \ (o_v) = (*(p) >> 6) & 0x02; \ (o_p) = (*(p) >> 5) & 0x01; \ (o_x) = (*(p) >> 4) & 0x01; \ (o_cc) = (*(p)++) & 0x0F; \ } while (0) #define AVDT_MSG_PRS_RPT_OCTET1(p, o_v, o_p, o_cc) \ do { \ (o_v) = (*(p) >> 6) & 0x02; \ (o_p) = (*(p) >> 5) & 0x01; \ (o_cc) = (*(p)++) & 0x1F; \ } while (0) #define AVDT_MSG_PRS_M_PT(p, m_pt, marker) \ do { \ (marker) = (*(p) >> 7) & 0x01; \ (m_pt) = (*(p)++) & 0x7F; \ } while (0) #define AVDT_MSG_BLD_HDR(p, lbl, pkt, msg) \ do { \ *(p)++ = (uint8_t)((lbl) << 4) | ((pkt) << 2) | (msg); \ } while (0) #define AVDT_MSG_BLD_DISC(p, seid, in_use, type, tsep) \ do { \ *(p)++ = (uint8_t)(((seid) << 2) | ((in_use) << 1)); \ *(p)++ = (uint8_t)(((type) << 4) | ((tsep) << 3)); \ } while (0) #define AVDT_MSG_BLD_SIG(p, sig) \ do { \ *(p)++ = (uint8_t)(sig); \ } while (0) #define AVDT_MSG_BLD_SEID(p, seid) \ do { \ *(p)++ = (uint8_t)((seid) << 2); \ } while (0) #define AVDT_MSG_BLD_ERR(p, err) \ do { \ *(p)++ = (uint8_t)(err); \ } while (0) #define AVDT_MSG_BLD_PARAM(p, param) \ do { \ *(p)++ = (uint8_t)(param); \ } while (0) #define AVDT_MSG_BLD_NOSP(p, nosp) \ do { \ *(p)++ = (uint8_t)(nosp); \ } while (0) #endif /* AVDT_DEFS_H */