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Diffstat (limited to 'stack/avdt/avdt_defs.h')
| -rw-r--r-- | stack/avdt/avdt_defs.h | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/stack/avdt/avdt_defs.h b/stack/avdt/avdt_defs.h new file mode 100644 index 0000000..b6dbbc4 --- /dev/null +++ b/stack/avdt/avdt_defs.h @@ -0,0 +1,203 @@ +/****************************************************************************** + * + * 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 */ + |