| /****************************************************************************** |
| * |
| * 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 */ |
| #define AVDT_RECOV_MRWS_MIN 0x01 /* min value for maximum recovery window */ |
| #define AVDT_RECOV_MRWS_MAX 0x18 /* max value for maximum recovery window */ |
| #define AVDT_RECOV_MNMP_MIN 0x01 /* min value for maximum number of media packets */ |
| #define AVDT_RECOV_MNMP_MAX 0x18 /* max value for maximum number of media packets */ |
| |
| /* 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 */ |
| #define AVDT_ALH_LCODE_MASK 0x03 /* coding of length field */ |
| #define AVDT_ALH_LCODE_NONE 0x00 /* No length field present. Take length from l2cap */ |
| #define AVDT_ALH_LCODE_16BIT 0x01 /* 16bit length field */ |
| #define AVDT_ALH_LCODE_9BITM0 0x02 /* 9 bit length field, MSB = 0, 8 LSBs in 1 octet following */ |
| #define AVDT_ALH_LCODE_9BITM1 0x03 /* 9 bit length field, MSB = 1, 8 LSBs in 1 octet following */ |
| |
| #define AVDT_ALH_FRAG_MASK 0x04 /* set this for continuation packet */ |
| |
| /***************************************************************************** |
| ** message parsing and building macros |
| *****************************************************************************/ |
| |
| #define AVDT_MSG_PRS_HDR(p, lbl, pkt, msg) \ |
| lbl = *(p) >> 4; \ |
| pkt = (*(p) >> 2) & 0x03; \ |
| msg = *(p)++ & 0x03; |
| |
| #define AVDT_MSG_PRS_DISC(p, seid, in_use, type, tsep) \ |
| seid = *(p) >> 2; \ |
| in_use = (*(p)++ >> 1) & 0x01; \ |
| type = *(p) >> 4; \ |
| tsep = (*(p)++ >> 3) & 0x01; |
| |
| #define AVDT_MSG_PRS_SIG(p, sig) \ |
| sig = *(p)++ & 0x3F; |
| |
| #define AVDT_MSG_PRS_SEID(p, seid) \ |
| seid = *(p)++ >> 2; |
| |
| #define AVDT_MSG_PRS_PKT_TYPE(p, pkt) \ |
| pkt = (*(p) >> 2) & 0x03; |
| |
| #define AVDT_MSG_PRS_OCTET1(p, o_v, o_p, o_x, o_cc) \ |
| o_v = *(p) >> 6; \ |
| o_p = (*(p) >> 5) & 0x01; \ |
| o_x = (*(p) >> 4) & 0x01; \ |
| o_cc = *(p)++ & 0x0F; |
| |
| #define AVDT_MSG_PRS_RPT_OCTET1(p, o_v, o_p, o_cc) \ |
| o_v = *(p) >> 6; \ |
| o_p = (*(p) >> 5) & 0x01; \ |
| o_cc = *(p)++ & 0x1F; |
| |
| #define AVDT_MSG_PRS_M_PT(p, m_pt, marker) \ |
| marker = *(p) >> 7; \ |
| m_pt = *(p)++ & 0x7F; |
| |
| #define AVDT_MSG_BLD_HDR(p, lbl, pkt, msg) \ |
| *(p)++ = (UINT8) ((lbl) << 4) | ((pkt) << 2) | (msg); |
| |
| #define AVDT_MSG_BLD_DISC(p, seid, in_use, type, tsep) \ |
| *(p)++ = (UINT8) (((seid) << 2) | ((in_use) << 1)); \ |
| *(p)++ = (UINT8) (((type) << 4) | ((tsep) << 3)); |
| |
| #define AVDT_MSG_BLD_SIG(p, sig) \ |
| *(p)++ = (UINT8) (sig); |
| |
| #define AVDT_MSG_BLD_SEID(p, seid) \ |
| *(p)++ = (UINT8) ((seid) << 2); |
| |
| #define AVDT_MSG_BLD_ERR(p, err) \ |
| *(p)++ = (UINT8) (err); |
| |
| #define AVDT_MSG_BLD_PARAM(p, param) \ |
| *(p)++ = (UINT8) (param); |
| |
| #define AVDT_MSG_BLD_NOSP(p, nosp) \ |
| *(p)++ = (UINT8) (nosp); |
| |
| #endif /* AVDT_DEFS_H */ |
| |
