kopia lustrzana https://github.com/espressif/esp-idf
1770 wiersze
62 KiB
C
1770 wiersze
62 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2002-2012 Broadcom Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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/******************************************************************************
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*
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* This module contains functions for parsing and building AVDTP signaling
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* messages. It also contains functions called by the SCB or CCB state
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* machines for sending command, response, and reject messages. It also
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* contains a function that processes incoming messages and dispatches them
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* to the appropriate SCB or CCB.
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*
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******************************************************************************/
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#include <string.h>
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#include "bt_types.h"
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#include "bt_target.h"
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#include "bt_utils.h"
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#include "avdt_api.h"
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#include "avdtc_api.h"
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#include "avdt_int.h"
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#include "gki.h"
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#include "btu.h"
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#if (defined(AVDT_INCLUDED) && AVDT_INCLUDED == TRUE)
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/*****************************************************************************
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** constants
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*****************************************************************************/
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/* mask of all psc values */
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#define AVDT_MSG_PSC_MASK (AVDT_PSC_TRANS | AVDT_PSC_REPORT | AVDT_PSC_DELAY_RPT | \
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AVDT_PSC_RECOV | AVDT_PSC_HDRCMP | AVDT_PSC_MUX)
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#define AVDT_PSC_PROTECT (1<<4) /* Content Protection */
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#define AVDT_PSC_CODEC (1<<7) /* codec */
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/*****************************************************************************
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** type definitions
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*****************************************************************************/
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/* type for message building functions */
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typedef void (*tAVDT_MSG_BLD)(UINT8 **p, tAVDT_MSG *p_msg);
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/* type for message parsing functions */
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typedef UINT8 (*tAVDT_MSG_PRS)(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
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/*****************************************************************************
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** local function declarations
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*****************************************************************************/
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static void avdt_msg_bld_none(UINT8 **p, tAVDT_MSG *p_msg);
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static void avdt_msg_bld_single(UINT8 **p, tAVDT_MSG *p_msg);
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static void avdt_msg_bld_setconfig_cmd(UINT8 **p, tAVDT_MSG *p_msg);
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static void avdt_msg_bld_reconfig_cmd(UINT8 **p, tAVDT_MSG *p_msg);
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static void avdt_msg_bld_multi(UINT8 **p, tAVDT_MSG *p_msg);
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static void avdt_msg_bld_security_cmd(UINT8 **p, tAVDT_MSG *p_msg);
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static void avdt_msg_bld_discover_rsp(UINT8 **p, tAVDT_MSG *p_msg);
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static void avdt_msg_bld_svccap(UINT8 **p, tAVDT_MSG *p_msg);
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static void avdt_msg_bld_security_rsp(UINT8 **p, tAVDT_MSG *p_msg);
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static void avdt_msg_bld_all_svccap(UINT8 **p, tAVDT_MSG *p_msg);
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static void avdt_msg_bld_delay_rpt(UINT8 **p, tAVDT_MSG *p_msg);
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static UINT8 avdt_msg_prs_none(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
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static UINT8 avdt_msg_prs_single(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
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static UINT8 avdt_msg_prs_setconfig_cmd(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
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static UINT8 avdt_msg_prs_reconfig_cmd(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
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static UINT8 avdt_msg_prs_multi(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
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static UINT8 avdt_msg_prs_security_cmd(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
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static UINT8 avdt_msg_prs_discover_rsp(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
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static UINT8 avdt_msg_prs_svccap(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
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static UINT8 avdt_msg_prs_all_svccap(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
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static UINT8 avdt_msg_prs_security_rsp(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
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static UINT8 avdt_msg_prs_delay_rpt (tAVDT_MSG *p_msg, UINT8 *p, UINT16 len);
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/*****************************************************************************
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** constants
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*****************************************************************************/
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/* table of information element minimum lengths used for parsing */
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const UINT8 avdt_msg_ie_len_min[] = {
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0, /* unused */
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AVDT_LEN_TRANS_MIN, /* media transport */
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AVDT_LEN_REPORT_MIN, /* reporting */
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AVDT_LEN_RECOV_MIN, /* recovery */
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AVDT_LEN_PROTECT_MIN, /* content protection */
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AVDT_LEN_HDRCMP_MIN, /* header compression */
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AVDT_LEN_MUX_MIN, /* multiplexing */
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AVDT_LEN_CODEC_MIN, /* codec */
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AVDT_LEN_DELAY_RPT_MIN /* delay report */
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};
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/* table of information element minimum lengths used for parsing */
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const UINT8 avdt_msg_ie_len_max[] = {
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0, /* unused */
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AVDT_LEN_TRANS_MAX, /* media transport */
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AVDT_LEN_REPORT_MAX, /* reporting */
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AVDT_LEN_RECOV_MAX, /* recovery */
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AVDT_LEN_PROTECT_MAX, /* content protection */
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AVDT_LEN_HDRCMP_MAX, /* header compression */
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AVDT_LEN_MUX_MAX, /* multiplexing */
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AVDT_LEN_CODEC_MAX, /* codec */
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AVDT_LEN_DELAY_RPT_MAX /* delay report */
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};
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/* table of error codes used when decoding information elements */
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const UINT8 avdt_msg_ie_err[] = {
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0, /* unused */
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AVDT_ERR_MEDIA_TRANS, /* media transport */
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AVDT_ERR_LENGTH, /* reporting */
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AVDT_ERR_RECOV_FMT, /* recovery */
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AVDT_ERR_CP_FMT, /* content protection */
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AVDT_ERR_ROHC_FMT, /* header compression */
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AVDT_ERR_MUX_FMT, /* multiplexing */
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AVDT_ERR_SERVICE, /* codec */
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AVDT_ERR_SERVICE /* delay report ?? */
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};
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/* table of packet type minimum lengths */
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static const UINT8 avdt_msg_pkt_type_len[] = {
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AVDT_LEN_TYPE_SINGLE,
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AVDT_LEN_TYPE_START,
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AVDT_LEN_TYPE_CONT,
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AVDT_LEN_TYPE_END
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};
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/* function table for building command messages */
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const tAVDT_MSG_BLD avdt_msg_bld_cmd[] = {
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avdt_msg_bld_none, /* discover */
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avdt_msg_bld_single, /* get capabilities */
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avdt_msg_bld_setconfig_cmd, /* set configuration */
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avdt_msg_bld_single, /* get configuration */
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avdt_msg_bld_reconfig_cmd, /* reconfigure */
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avdt_msg_bld_single, /* open */
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avdt_msg_bld_multi, /* start */
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avdt_msg_bld_single, /* close */
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avdt_msg_bld_multi, /* suspend */
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avdt_msg_bld_single, /* abort */
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avdt_msg_bld_security_cmd, /* security control */
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avdt_msg_bld_single, /* get all capabilities */
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avdt_msg_bld_delay_rpt /* delay report */
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};
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/* function table for building response messages */
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const tAVDT_MSG_BLD avdt_msg_bld_rsp[] = {
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avdt_msg_bld_discover_rsp, /* discover */
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avdt_msg_bld_svccap, /* get capabilities */
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avdt_msg_bld_none, /* set configuration */
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avdt_msg_bld_all_svccap, /* get configuration */
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avdt_msg_bld_none, /* reconfigure */
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avdt_msg_bld_none, /* open */
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avdt_msg_bld_none, /* start */
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avdt_msg_bld_none, /* close */
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avdt_msg_bld_none, /* suspend */
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avdt_msg_bld_none, /* abort */
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avdt_msg_bld_security_rsp, /* security control */
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avdt_msg_bld_all_svccap, /* get all capabilities */
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avdt_msg_bld_none /* delay report */
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};
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/* function table for parsing command messages */
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const tAVDT_MSG_PRS avdt_msg_prs_cmd[] = {
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avdt_msg_prs_none, /* discover */
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avdt_msg_prs_single, /* get capabilities */
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avdt_msg_prs_setconfig_cmd, /* set configuration */
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avdt_msg_prs_single, /* get configuration */
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avdt_msg_prs_reconfig_cmd, /* reconfigure */
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avdt_msg_prs_single, /* open */
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avdt_msg_prs_multi, /* start */
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avdt_msg_prs_single, /* close */
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avdt_msg_prs_multi, /* suspend */
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avdt_msg_prs_single, /* abort */
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avdt_msg_prs_security_cmd, /* security control */
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avdt_msg_prs_single, /* get all capabilities */
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avdt_msg_prs_delay_rpt /* delay report */
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};
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/* function table for parsing response messages */
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const tAVDT_MSG_PRS avdt_msg_prs_rsp[] = {
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avdt_msg_prs_discover_rsp, /* discover */
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avdt_msg_prs_svccap, /* get capabilities */
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avdt_msg_prs_none, /* set configuration */
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avdt_msg_prs_all_svccap, /* get configuration */
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avdt_msg_prs_none, /* reconfigure */
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avdt_msg_prs_none, /* open */
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avdt_msg_prs_none, /* start */
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avdt_msg_prs_none, /* close */
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avdt_msg_prs_none, /* suspend */
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avdt_msg_prs_none, /* abort */
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avdt_msg_prs_security_rsp, /* security control */
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avdt_msg_prs_all_svccap, /* get all capabilities */
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avdt_msg_prs_none /* delay report */
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};
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/* command message-to-event lookup table */
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const UINT8 avdt_msg_cmd_2_evt[] = {
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AVDT_CCB_MSG_DISCOVER_CMD_EVT + AVDT_CCB_MKR, /* discover */
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AVDT_CCB_MSG_GETCAP_CMD_EVT + AVDT_CCB_MKR, /* get capabilities */
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AVDT_SCB_MSG_SETCONFIG_CMD_EVT, /* set configuration */
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AVDT_SCB_MSG_GETCONFIG_CMD_EVT, /* get configuration */
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AVDT_SCB_MSG_RECONFIG_CMD_EVT, /* reconfigure */
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AVDT_SCB_MSG_OPEN_CMD_EVT, /* open */
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AVDT_CCB_MSG_START_CMD_EVT + AVDT_CCB_MKR, /* start */
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AVDT_SCB_MSG_CLOSE_CMD_EVT, /* close */
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AVDT_CCB_MSG_SUSPEND_CMD_EVT + AVDT_CCB_MKR, /* suspend */
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AVDT_SCB_MSG_ABORT_CMD_EVT, /* abort */
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AVDT_SCB_MSG_SECURITY_CMD_EVT, /* security control */
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AVDT_CCB_MSG_GETCAP_CMD_EVT + AVDT_CCB_MKR, /* get all capabilities */
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AVDT_SCB_MSG_DELAY_RPT_CMD_EVT /* delay report */
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};
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/* response message-to-event lookup table */
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const UINT8 avdt_msg_rsp_2_evt[] = {
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AVDT_CCB_MSG_DISCOVER_RSP_EVT + AVDT_CCB_MKR, /* discover */
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AVDT_CCB_MSG_GETCAP_RSP_EVT + AVDT_CCB_MKR, /* get capabilities */
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AVDT_SCB_MSG_SETCONFIG_RSP_EVT, /* set configuration */
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AVDT_SCB_MSG_GETCONFIG_RSP_EVT, /* get configuration */
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AVDT_SCB_MSG_RECONFIG_RSP_EVT, /* reconfigure */
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AVDT_SCB_MSG_OPEN_RSP_EVT, /* open */
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AVDT_CCB_MSG_START_RSP_EVT + AVDT_CCB_MKR, /* start */
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AVDT_SCB_MSG_CLOSE_RSP_EVT, /* close */
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AVDT_CCB_MSG_SUSPEND_RSP_EVT + AVDT_CCB_MKR, /* suspend */
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AVDT_SCB_MSG_ABORT_RSP_EVT, /* abort */
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AVDT_SCB_MSG_SECURITY_RSP_EVT, /* security control */
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AVDT_CCB_MSG_GETCAP_RSP_EVT + AVDT_CCB_MKR, /* get all capabilities */
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AVDT_SCB_MSG_DELAY_RPT_RSP_EVT /* delay report */
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};
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/* reject message-to-event lookup table */
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const UINT8 avdt_msg_rej_2_evt[] = {
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AVDT_CCB_MSG_DISCOVER_RSP_EVT + AVDT_CCB_MKR, /* discover */
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AVDT_CCB_MSG_GETCAP_RSP_EVT + AVDT_CCB_MKR, /* get capabilities */
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AVDT_SCB_MSG_SETCONFIG_REJ_EVT, /* set configuration */
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AVDT_SCB_MSG_GETCONFIG_RSP_EVT, /* get configuration */
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AVDT_SCB_MSG_RECONFIG_RSP_EVT, /* reconfigure */
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AVDT_SCB_MSG_OPEN_REJ_EVT, /* open */
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AVDT_CCB_MSG_START_RSP_EVT + AVDT_CCB_MKR, /* start */
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AVDT_SCB_MSG_CLOSE_RSP_EVT, /* close */
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AVDT_CCB_MSG_SUSPEND_RSP_EVT + AVDT_CCB_MKR, /* suspend */
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AVDT_SCB_MSG_ABORT_RSP_EVT, /* abort */
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AVDT_SCB_MSG_SECURITY_RSP_EVT, /* security control */
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AVDT_CCB_MSG_GETCAP_RSP_EVT + AVDT_CCB_MKR, /* get all capabilities */
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0 /* delay report */
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};
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/*******************************************************************************
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**
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** Function avdt_msg_bld_cfg
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**
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** Description This function builds the configuration parameters contained
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** in a command or response message.
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**
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**
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** Returns void.
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**
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*******************************************************************************/
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static void avdt_msg_bld_cfg(UINT8 **p, tAVDT_CFG *p_cfg)
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{
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UINT8 len;
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/* for now, just build media transport, codec, and content protection, and multiplexing */
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/* media transport */
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if (p_cfg->psc_mask & AVDT_PSC_TRANS) {
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*(*p)++ = AVDT_CAT_TRANS;
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*(*p)++ = 0; /* length */
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}
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#if AVDT_REPORTING == TRUE
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/* reporting transport */
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if (p_cfg->psc_mask & AVDT_PSC_REPORT) {
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*(*p)++ = AVDT_CAT_REPORT;
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*(*p)++ = 0; /* length */
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}
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#endif
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/* codec */
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if (p_cfg->num_codec != 0) {
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*(*p)++ = AVDT_CAT_CODEC;
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len = p_cfg->codec_info[0] + 1;
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if ( len > AVDT_CODEC_SIZE ) {
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len = AVDT_CODEC_SIZE;
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}
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memcpy(*p, p_cfg->codec_info, len);
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*p += len;
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}
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/* content protection */
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if (p_cfg->num_protect != 0) {
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*(*p)++ = AVDT_CAT_PROTECT;
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len = p_cfg->protect_info[0] + 1;
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if ( len > AVDT_PROTECT_SIZE ) {
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len = AVDT_PROTECT_SIZE;
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}
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memcpy(*p, p_cfg->protect_info, len);
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*p += len;
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}
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#if AVDT_MULTIPLEXING == TRUE
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/* multiplexing */
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if (p_cfg->psc_mask & AVDT_PSC_MUX) {
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*(*p)++ = AVDT_CAT_MUX;
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/* length */
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if (p_cfg->psc_mask & AVDT_PSC_RECOV) {
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*(*p)++ = 7; /* frag (1) + media + report + recovery */
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} else if (p_cfg->psc_mask & AVDT_PSC_REPORT) {
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*(*p)++ = 5; /* frag (1) + media + report */
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} else {
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*(*p)++ = 3; /* frag (1) + media */
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}
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/* allow fragmentation */
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if (p_cfg->mux_mask & AVDT_MUX_FRAG) {
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*(*p)++ = 0x80;
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} else {
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*(*p)++ = 0;
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}
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/* media transport session */
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*(*p)++ = p_cfg->mux_tsid_media << 3; /* TSID */
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*(*p)++ = p_cfg->mux_tcid_media << 3; /* TCID */
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if (p_cfg->psc_mask & AVDT_PSC_RECOV) {
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/* reporting transport session */
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*(*p)++ = p_cfg->mux_tsid_report << 3; /* TSID */
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*(*p)++ = p_cfg->mux_tcid_report << 3; /* TCID */
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/* recovery transport session */
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*(*p)++ = p_cfg->mux_tsid_recov << 3; /* TSID */
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*(*p)++ = p_cfg->mux_tcid_recov << 3; /* TCID */
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} else if (p_cfg->psc_mask & AVDT_PSC_REPORT) {
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/* reporting transport session */
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*(*p)++ = p_cfg->mux_tsid_report << 3; /* TSID */
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*(*p)++ = p_cfg->mux_tcid_report << 3; /* TCID */
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}
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}
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#endif
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/* delay report */
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if (p_cfg->psc_mask & AVDT_PSC_DELAY_RPT) {
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*(*p)++ = AVDT_CAT_DELAY_RPT;
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*(*p)++ = 0; /* length */
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}
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}
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/*******************************************************************************
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**
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** Function avdt_msg_bld_none
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**
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** Description This message building function builds an empty message.
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**
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**
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** Returns void.
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**
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*******************************************************************************/
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static void avdt_msg_bld_none(UINT8 **p, tAVDT_MSG *p_msg)
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{
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UNUSED(p);
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UNUSED(p_msg);
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return;
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}
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/*******************************************************************************
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**
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** Function avdt_msg_bld_single
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**
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** Description This message building function builds a message containing
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** a single SEID.
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**
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**
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** Returns void.
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**
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*******************************************************************************/
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static void avdt_msg_bld_single(UINT8 **p, tAVDT_MSG *p_msg)
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{
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AVDT_MSG_BLD_SEID(*p, p_msg->single.seid);
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}
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/*******************************************************************************
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**
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** Function avdt_msg_bld_setconfig_cmd
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**
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** Description This message building function builds a set configuration
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** command message.
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**
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**
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** Returns void.
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**
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*******************************************************************************/
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static void avdt_msg_bld_setconfig_cmd(UINT8 **p, tAVDT_MSG *p_msg)
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{
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AVDT_MSG_BLD_SEID(*p, p_msg->config_cmd.hdr.seid);
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AVDT_MSG_BLD_SEID(*p, p_msg->config_cmd.int_seid);
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avdt_msg_bld_cfg(p, p_msg->config_cmd.p_cfg);
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}
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/*******************************************************************************
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**
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** Function avdt_msg_bld_reconfig_cmd
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**
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** Description This message building function builds a reconfiguration
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** command message.
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**
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**
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** Returns void.
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|
**
|
|
*******************************************************************************/
|
|
static void avdt_msg_bld_reconfig_cmd(UINT8 **p, tAVDT_MSG *p_msg)
|
|
{
|
|
AVDT_MSG_BLD_SEID(*p, p_msg->reconfig_cmd.hdr.seid);
|
|
|
|
/* force psc mask zero to build only codec and security */
|
|
p_msg->reconfig_cmd.p_cfg->psc_mask = 0;
|
|
avdt_msg_bld_cfg(p, p_msg->reconfig_cmd.p_cfg);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_bld_multi
|
|
**
|
|
** Description This message building function builds a message containing
|
|
** multiple SEID's.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
static void avdt_msg_bld_multi(UINT8 **p, tAVDT_MSG *p_msg)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < p_msg->multi.num_seps; i++) {
|
|
AVDT_MSG_BLD_SEID(*p, p_msg->multi.seid_list[i]);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_bld_security_cmd
|
|
**
|
|
** Description This message building function builds a security
|
|
** command message.
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
static void avdt_msg_bld_security_cmd(UINT8 **p, tAVDT_MSG *p_msg)
|
|
{
|
|
AVDT_MSG_BLD_SEID(*p, p_msg->security_cmd.hdr.seid);
|
|
memcpy(*p, p_msg->security_cmd.p_data, p_msg->security_cmd.len);
|
|
*p += p_msg->security_cmd.len;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_bld_delay_rpt
|
|
**
|
|
** Description This message building function builds a delay report
|
|
** command message.
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
static void avdt_msg_bld_delay_rpt(UINT8 **p, tAVDT_MSG *p_msg)
|
|
{
|
|
AVDT_MSG_BLD_SEID(*p, p_msg->delay_rpt_cmd.hdr.seid);
|
|
UINT16_TO_BE_STREAM(*p, p_msg->delay_rpt_cmd.delay);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_bld_discover_rsp
|
|
**
|
|
** Description This message building function builds a discover
|
|
** response message.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
static void avdt_msg_bld_discover_rsp(UINT8 **p, tAVDT_MSG *p_msg)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < p_msg->discover_rsp.num_seps; i++) {
|
|
/* build discover rsp info */
|
|
AVDT_MSG_BLD_DISC(*p, p_msg->discover_rsp.p_sep_info[i].seid,
|
|
p_msg->discover_rsp.p_sep_info[i].in_use,
|
|
p_msg->discover_rsp.p_sep_info[i].media_type,
|
|
p_msg->discover_rsp.p_sep_info[i].tsep);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_bld_svccap
|
|
**
|
|
** Description This message building function builds a message containing
|
|
** service capabilities parameters.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
static void avdt_msg_bld_svccap(UINT8 **p, tAVDT_MSG *p_msg)
|
|
{
|
|
tAVDT_CFG cfg;
|
|
|
|
/* make sure the delay report category is not reported */
|
|
memcpy (&cfg, p_msg->svccap.p_cfg, sizeof(tAVDT_CFG));
|
|
cfg.psc_mask &= ~AVDT_PSC_DELAY_RPT;
|
|
avdt_msg_bld_cfg(p, &cfg);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_bld_all_svccap
|
|
**
|
|
** Description This message building function builds a message containing
|
|
** service capabilities parameters.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
static void avdt_msg_bld_all_svccap(UINT8 **p, tAVDT_MSG *p_msg)
|
|
{
|
|
avdt_msg_bld_cfg(p, p_msg->svccap.p_cfg);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_bld_security_rsp
|
|
**
|
|
** Description This message building function builds a security
|
|
** response message.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
static void avdt_msg_bld_security_rsp(UINT8 **p, tAVDT_MSG *p_msg)
|
|
{
|
|
memcpy(*p, p_msg->security_rsp.p_data, p_msg->security_rsp.len);
|
|
*p += p_msg->security_rsp.len;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_prs_cfg
|
|
**
|
|
** Description This message parsing function parses the configuration
|
|
** parameters field of a message.
|
|
**
|
|
**
|
|
** Returns Error code or zero if no error, and element that failed
|
|
** in p_elem.
|
|
**
|
|
*******************************************************************************/
|
|
static UINT8 avdt_msg_prs_cfg(tAVDT_CFG *p_cfg, UINT8 *p, UINT16 len, UINT8 *p_elem, UINT8 sig_id)
|
|
{
|
|
UINT8 *p_end;
|
|
UINT8 elem = 0;
|
|
UINT8 elem_len;
|
|
UINT8 tmp;
|
|
UINT8 err = 0;
|
|
UINT8 protect_offset = 0;
|
|
|
|
if (!p_cfg) {
|
|
AVDT_TRACE_ERROR ("not expecting this cfg");
|
|
return AVDT_ERR_BAD_STATE;
|
|
}
|
|
|
|
p_cfg->psc_mask = 0;
|
|
p_cfg->num_codec = 0;
|
|
p_cfg->num_protect = 0;
|
|
#if AVDT_MULTIPLEXING == TRUE
|
|
p_cfg->mux_mask = 0;
|
|
#endif
|
|
|
|
/* while there is still data to parse */
|
|
p_end = p + len;
|
|
while ((p < p_end) && (err == 0)) {
|
|
/* verify overall length */
|
|
if ((p_end - p) < AVDT_LEN_CFG_MIN) {
|
|
err = AVDT_ERR_PAYLOAD;
|
|
break;
|
|
}
|
|
|
|
/* get and verify info elem id, length */
|
|
elem = *p++;
|
|
elem_len = *p++;
|
|
|
|
if ((elem == 0) || (elem > AVDT_CAT_MAX_CUR)) {
|
|
/* this may not be really bad.
|
|
* It may be a service category that is too new for us.
|
|
* allow these to be parsed without reporting an error.
|
|
* If this is a "capability" (as in GetCapRsp & GetConfigRsp), this is filtered out.
|
|
* If this is a Configuration (as in SetConfigCmd & ReconfigCmd),
|
|
* this will be marked as an error in the caller of this function */
|
|
if ((sig_id == AVDT_SIG_SETCONFIG) || (sig_id == AVDT_SIG_RECONFIG)) {
|
|
/* Cannot accept unknown category. */
|
|
err = AVDT_ERR_CATEGORY;
|
|
break;
|
|
} else { /* GETCAP or GET_ALLCAP */
|
|
/* Skip unknown categories. */
|
|
p += elem_len;
|
|
AVDT_TRACE_DEBUG("skipping unknown service category=%d len: %d\n", elem, elem_len);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if ((elem_len > avdt_msg_ie_len_max[elem]) ||
|
|
(elem_len < avdt_msg_ie_len_min[elem])) {
|
|
err = avdt_msg_ie_err[elem];
|
|
break;
|
|
}
|
|
|
|
/* add element to psc mask, but mask out codec or protect */
|
|
p_cfg->psc_mask |= (1 << elem);
|
|
AVDT_TRACE_DEBUG("elem=%d elem_len: %d psc_mask=0x%x\n", elem, elem_len, p_cfg->psc_mask);
|
|
|
|
/* parse individual information elements with additional parameters */
|
|
switch (elem) {
|
|
case AVDT_CAT_RECOV:
|
|
p_cfg->recov_type = *p++;
|
|
p_cfg->recov_mrws = *p++;
|
|
p_cfg->recov_mnmp = *p++;
|
|
if (p_cfg->recov_type != AVDT_RECOV_RFC2733) {
|
|
err = AVDT_ERR_RECOV_TYPE;
|
|
} else if ((p_cfg->recov_mrws < AVDT_RECOV_MRWS_MIN) ||
|
|
(p_cfg->recov_mrws > AVDT_RECOV_MRWS_MAX) ||
|
|
(p_cfg->recov_mnmp < AVDT_RECOV_MNMP_MIN) ||
|
|
(p_cfg->recov_mnmp > AVDT_RECOV_MNMP_MAX)) {
|
|
err = AVDT_ERR_RECOV_FMT;
|
|
}
|
|
break;
|
|
|
|
case AVDT_CAT_PROTECT:
|
|
p_cfg->psc_mask &= ~AVDT_PSC_PROTECT;
|
|
if ((elem_len + protect_offset) < AVDT_PROTECT_SIZE) {
|
|
p_cfg->num_protect++;
|
|
p_cfg->protect_info[protect_offset] = elem_len;
|
|
protect_offset++;
|
|
memcpy(&p_cfg->protect_info[protect_offset], p, elem_len);
|
|
protect_offset += elem_len;
|
|
}
|
|
p += elem_len;
|
|
break;
|
|
|
|
case AVDT_CAT_HDRCMP:
|
|
p_cfg->hdrcmp_mask = *p++;
|
|
break;
|
|
|
|
#if AVDT_MULTIPLEXING == TRUE
|
|
case AVDT_CAT_MUX:
|
|
/* verify length */
|
|
AVDT_TRACE_WARNING("psc_mask=0x%x elem_len=%d\n", p_cfg->psc_mask, elem_len);
|
|
if ( ((0 == (p_cfg->psc_mask & (AVDT_PSC_RECOV | AVDT_PSC_REPORT))) && (elem_len != 3))
|
|
|| (((p_cfg->psc_mask & AVDT_PSC_REPORT) && !(p_cfg->psc_mask & AVDT_PSC_RECOV))
|
|
&& (elem_len != 5))
|
|
|| ((!(p_cfg->psc_mask & AVDT_PSC_REPORT) && (p_cfg->psc_mask & AVDT_PSC_RECOV))
|
|
&& (elem_len != 5))
|
|
|| (((p_cfg->psc_mask & AVDT_PSC_REPORT) && (p_cfg->psc_mask & AVDT_PSC_RECOV))
|
|
&& (elem_len != 7)) ) {
|
|
err = AVDT_ERR_MUX_FMT;
|
|
break;
|
|
}
|
|
|
|
/* parse fragmentation */
|
|
p_cfg->mux_mask = *p++ & (UINT8)AVDT_MUX_FRAG;
|
|
|
|
/* parse TSIDs and TCIDs */
|
|
if (--elem_len) {
|
|
p_cfg->mux_tsid_media = (*p++) >> 3;
|
|
} else {
|
|
break;
|
|
}
|
|
|
|
if (--elem_len) {
|
|
p_cfg->mux_tcid_media = (*p++) >> 3;
|
|
} else {
|
|
break;
|
|
}
|
|
|
|
if (--elem_len) {
|
|
p_cfg->mux_tsid_report = (*p++) >> 3;
|
|
} else {
|
|
break;
|
|
}
|
|
|
|
if (--elem_len) {
|
|
p_cfg->mux_tcid_report = (*p++) >> 3;
|
|
} else {
|
|
break;
|
|
}
|
|
|
|
if (--elem_len) {
|
|
p_cfg->mux_tsid_recov = (*p++) >> 3;
|
|
} else {
|
|
break;
|
|
}
|
|
|
|
if (--elem_len) {
|
|
p_cfg->mux_tcid_recov = (*p++) >> 3;
|
|
} else {
|
|
break;
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
case AVDT_CAT_CODEC:
|
|
p_cfg->psc_mask &= ~AVDT_PSC_CODEC;
|
|
tmp = elem_len;
|
|
if (elem_len >= AVDT_CODEC_SIZE) {
|
|
tmp = AVDT_CODEC_SIZE - 1;
|
|
}
|
|
p_cfg->num_codec++;
|
|
p_cfg->codec_info[0] = elem_len;
|
|
memcpy(&p_cfg->codec_info[1], p, tmp);
|
|
p += elem_len;
|
|
break;
|
|
|
|
case AVDT_CAT_DELAY_RPT:
|
|
break;
|
|
|
|
default:
|
|
p += elem_len;
|
|
break;
|
|
} /* switch */
|
|
} /* while ! err, !end*/
|
|
*p_elem = elem;
|
|
AVDT_TRACE_DEBUG("err=0x%x, elem:0x%x psc_mask=0x%x\n", err, elem, p_cfg->psc_mask);
|
|
|
|
return err;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_prs_none
|
|
**
|
|
** Description This message parsing function parses a message with no parameters.
|
|
|
|
**
|
|
**
|
|
** Returns Error code or zero if no error.
|
|
**
|
|
*******************************************************************************/
|
|
static UINT8 avdt_msg_prs_none(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
|
|
{
|
|
UNUSED(p_msg);
|
|
UNUSED(p);
|
|
UNUSED(len);
|
|
return 0;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_prs_single
|
|
**
|
|
** Description This message parsing function parses a message with a
|
|
** single SEID.
|
|
**
|
|
**
|
|
** Returns Error code or zero if no error.
|
|
**
|
|
*******************************************************************************/
|
|
static UINT8 avdt_msg_prs_single(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
|
|
{
|
|
UINT8 err = 0;
|
|
|
|
/* verify len */
|
|
if (len != AVDT_LEN_SINGLE) {
|
|
err = AVDT_ERR_LENGTH;
|
|
} else {
|
|
AVDT_MSG_PRS_SEID(p, p_msg->single.seid);
|
|
|
|
if (avdt_scb_by_hdl(p_msg->single.seid) == NULL) {
|
|
err = AVDT_ERR_SEID;
|
|
}
|
|
}
|
|
return err;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_prs_setconfig_cmd
|
|
**
|
|
** Description This message parsing function parses a set configuration
|
|
** command message.
|
|
**
|
|
**
|
|
** Returns Error code or zero if no error.
|
|
**
|
|
*******************************************************************************/
|
|
static UINT8 avdt_msg_prs_setconfig_cmd(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
|
|
{
|
|
UINT8 err = 0;
|
|
|
|
p_msg->hdr.err_param = 0;
|
|
|
|
/* verify len */
|
|
if (len < AVDT_LEN_SETCONFIG_MIN) {
|
|
err = AVDT_ERR_LENGTH;
|
|
} else {
|
|
/* get seids */
|
|
AVDT_MSG_PRS_SEID(p, p_msg->config_cmd.hdr.seid);
|
|
if (avdt_scb_by_hdl(p_msg->config_cmd.hdr.seid) == NULL) {
|
|
err = AVDT_ERR_SEID;
|
|
}
|
|
|
|
AVDT_MSG_PRS_SEID(p, p_msg->config_cmd.int_seid);
|
|
if ((p_msg->config_cmd.int_seid < AVDT_SEID_MIN) ||
|
|
(p_msg->config_cmd.int_seid > AVDT_SEID_MAX)) {
|
|
err = AVDT_ERR_SEID;
|
|
}
|
|
}
|
|
|
|
if (!err) {
|
|
/* parse configuration parameters */
|
|
len -= 2;
|
|
err = avdt_msg_prs_cfg(p_msg->config_cmd.p_cfg, p, len, &p_msg->hdr.err_param, AVDT_SIG_SETCONFIG);
|
|
|
|
if (!err) {
|
|
/* verify protocol service capabilities are supported */
|
|
if (((p_msg->config_cmd.p_cfg->psc_mask & (~AVDT_PSC)) != 0) ||
|
|
(p_msg->config_cmd.p_cfg->num_codec == 0)) {
|
|
err = AVDT_ERR_INVALID_CAP;
|
|
}
|
|
}
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_prs_reconfig_cmd
|
|
**
|
|
** Description This message parsing function parses a reconfiguration
|
|
** command message.
|
|
**
|
|
**
|
|
** Returns Error code or zero if no error.
|
|
**
|
|
*******************************************************************************/
|
|
static UINT8 avdt_msg_prs_reconfig_cmd(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
|
|
{
|
|
UINT8 err = 0;
|
|
|
|
p_msg->hdr.err_param = 0;
|
|
|
|
/* verify len */
|
|
if (len < AVDT_LEN_RECONFIG_MIN) {
|
|
err = AVDT_ERR_LENGTH;
|
|
} else {
|
|
/* get seid */
|
|
AVDT_MSG_PRS_SEID(p, p_msg->reconfig_cmd.hdr.seid);
|
|
if (avdt_scb_by_hdl(p_msg->reconfig_cmd.hdr.seid) == NULL) {
|
|
err = AVDT_ERR_SEID;
|
|
} else {
|
|
/* parse config parameters */
|
|
len--;
|
|
err = avdt_msg_prs_cfg(p_msg->config_cmd.p_cfg, p, len, &p_msg->hdr.err_param, AVDT_SIG_RECONFIG);
|
|
|
|
/* verify no protocol service capabilities in parameters */
|
|
if (!err) {
|
|
AVDT_TRACE_DEBUG("avdt_msg_prs_reconfig_cmd psc_mask=0x%x/0x%x\n", p_msg->config_cmd.p_cfg->psc_mask, AVDT_MSG_PSC_MASK);
|
|
if ((p_msg->config_cmd.p_cfg->psc_mask != 0) ||
|
|
(p_msg->config_cmd.p_cfg->num_codec == 0 && p_msg->config_cmd.p_cfg->num_protect == 0)) {
|
|
err = AVDT_ERR_INVALID_CAP;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return err;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_prs_multi
|
|
**
|
|
** Description This message parsing function parses a message containing
|
|
** multiple SEID's.
|
|
**
|
|
**
|
|
** Returns Error code or zero if no error.
|
|
**
|
|
*******************************************************************************/
|
|
static UINT8 avdt_msg_prs_multi(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
|
|
{
|
|
int i;
|
|
UINT8 err = 0;
|
|
|
|
p_msg->hdr.err_param = 0;
|
|
|
|
/* verify len */
|
|
if (len < AVDT_LEN_MULTI_MIN || (len > AVDT_NUM_SEPS)) {
|
|
err = AVDT_ERR_LENGTH;
|
|
} else {
|
|
/* get and verify all seps */
|
|
for (i = 0; i < len; i++) {
|
|
AVDT_MSG_PRS_SEID(p, p_msg->multi.seid_list[i]);
|
|
if (avdt_scb_by_hdl(p_msg->multi.seid_list[i]) == NULL) {
|
|
err = AVDT_ERR_SEID;
|
|
p_msg->hdr.err_param = p_msg->multi.seid_list[i];
|
|
break;
|
|
}
|
|
}
|
|
p_msg->multi.num_seps = (UINT8)i;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_prs_security_cmd
|
|
**
|
|
** Description This message parsing function parses a security
|
|
** command message.
|
|
**
|
|
**
|
|
** Returns Error code or zero if no error.
|
|
**
|
|
*******************************************************************************/
|
|
static UINT8 avdt_msg_prs_security_cmd(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
|
|
{
|
|
UINT8 err = 0;
|
|
|
|
/* verify len */
|
|
if (len < AVDT_LEN_SECURITY_MIN) {
|
|
err = AVDT_ERR_LENGTH;
|
|
} else {
|
|
/* get seid */
|
|
AVDT_MSG_PRS_SEID(p, p_msg->security_cmd.hdr.seid);
|
|
if (avdt_scb_by_hdl(p_msg->security_cmd.hdr.seid) == NULL) {
|
|
err = AVDT_ERR_SEID;
|
|
} else {
|
|
p_msg->security_cmd.p_data = p;
|
|
p_msg->security_cmd.len = len - 1;
|
|
}
|
|
}
|
|
return err;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_prs_discover_rsp
|
|
**
|
|
** Description This message parsing function parses a discover
|
|
** response message.
|
|
**
|
|
**
|
|
** Returns Error code or zero if no error.
|
|
**
|
|
*******************************************************************************/
|
|
static UINT8 avdt_msg_prs_discover_rsp(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
|
|
{
|
|
int i;
|
|
UINT8 err = 0;
|
|
|
|
/* determine number of seps; seps in msg is len/2, but set to minimum
|
|
** of seps app has supplied memory for and seps in msg
|
|
*/
|
|
if (p_msg->discover_rsp.num_seps > (len / 2)) {
|
|
p_msg->discover_rsp.num_seps = (len / 2);
|
|
}
|
|
|
|
/* parse out sep info */
|
|
for (i = 0; i < p_msg->discover_rsp.num_seps; i++) {
|
|
/* parse discover rsp info */
|
|
AVDT_MSG_PRS_DISC(p, p_msg->discover_rsp.p_sep_info[i].seid,
|
|
p_msg->discover_rsp.p_sep_info[i].in_use,
|
|
p_msg->discover_rsp.p_sep_info[i].media_type,
|
|
p_msg->discover_rsp.p_sep_info[i].tsep);
|
|
|
|
/* verify that seid is valid */
|
|
if ((p_msg->discover_rsp.p_sep_info[i].seid < AVDT_SEID_MIN) ||
|
|
(p_msg->discover_rsp.p_sep_info[i].seid > AVDT_SEID_MAX)) {
|
|
err = AVDT_ERR_SEID;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_prs_svccap
|
|
**
|
|
** Description This message parsing function parses a message containing
|
|
** service capabilities parameters.
|
|
**
|
|
**
|
|
** Returns Error code or zero if no error.
|
|
**
|
|
*******************************************************************************/
|
|
static UINT8 avdt_msg_prs_svccap(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
|
|
{
|
|
/* parse parameters */
|
|
UINT8 err = avdt_msg_prs_cfg(p_msg->svccap.p_cfg, p, len, &p_msg->hdr.err_param, AVDT_SIG_GETCAP);
|
|
if (p_msg->svccap.p_cfg) {
|
|
p_msg->svccap.p_cfg->psc_mask &= AVDT_LEG_PSC;
|
|
}
|
|
|
|
return (err);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_prs_all_svccap
|
|
**
|
|
** Description This message parsing function parses a message containing
|
|
** service capabilities parameters.
|
|
**
|
|
**
|
|
** Returns Error code or zero if no error.
|
|
**
|
|
*******************************************************************************/
|
|
static UINT8 avdt_msg_prs_all_svccap(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
|
|
{
|
|
UINT8 err = avdt_msg_prs_cfg(p_msg->svccap.p_cfg, p, len, &p_msg->hdr.err_param, AVDT_SIG_GET_ALLCAP);
|
|
if (p_msg->svccap.p_cfg) {
|
|
p_msg->svccap.p_cfg->psc_mask &= AVDT_MSG_PSC_MASK;
|
|
}
|
|
return (err);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_prs_security_rsp
|
|
**
|
|
** Description This message parsing function parsing a security
|
|
** response message.
|
|
**
|
|
**
|
|
** Returns Error code or zero if no error.
|
|
**
|
|
*******************************************************************************/
|
|
static UINT8 avdt_msg_prs_security_rsp(tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
|
|
{
|
|
p_msg->security_rsp.p_data = p;
|
|
p_msg->security_rsp.len = len;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_prs_rej
|
|
**
|
|
** Description
|
|
**
|
|
**
|
|
** Returns Error code or zero if no error.
|
|
**
|
|
*******************************************************************************/
|
|
static UINT8 avdt_msg_prs_rej(tAVDT_MSG *p_msg, UINT8 *p, UINT8 sig)
|
|
{
|
|
if ((sig == AVDT_SIG_SETCONFIG) || (sig == AVDT_SIG_RECONFIG)) {
|
|
p_msg->hdr.err_param = *p++;
|
|
p_msg->hdr.err_code = *p;
|
|
} else if ((sig == AVDT_SIG_START) || (sig == AVDT_SIG_SUSPEND)) {
|
|
AVDT_MSG_PRS_SEID(p, p_msg->hdr.err_param);
|
|
p_msg->hdr.err_code = *p;
|
|
} else {
|
|
p_msg->hdr.err_code = *p;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_prs_delay_rpt
|
|
**
|
|
** Description This message parsing function parses a security
|
|
** command message.
|
|
**
|
|
**
|
|
** Returns Error code or zero if no error.
|
|
**
|
|
*******************************************************************************/
|
|
static UINT8 avdt_msg_prs_delay_rpt (tAVDT_MSG *p_msg, UINT8 *p, UINT16 len)
|
|
{
|
|
UINT8 err = 0;
|
|
|
|
/* verify len */
|
|
if (len != AVDT_LEN_DELAY_RPT) {
|
|
AVDT_TRACE_WARNING("avdt_msg_prs_delay_rpt expected len: %u got: %u\n", AVDT_LEN_DELAY_RPT, len);
|
|
err = AVDT_ERR_LENGTH;
|
|
} else {
|
|
/* get seid */
|
|
AVDT_MSG_PRS_SEID (p, p_msg->delay_rpt_cmd.hdr.seid);
|
|
|
|
if (avdt_scb_by_hdl(p_msg->delay_rpt_cmd.hdr.seid) == NULL) {
|
|
err = AVDT_ERR_SEID;
|
|
} else {
|
|
BE_STREAM_TO_UINT16 (p_msg->delay_rpt_cmd.delay, p);
|
|
AVDT_TRACE_DEBUG("avdt_msg_prs_delay_rpt delay: %u\n", p_msg->delay_rpt_cmd.delay);
|
|
}
|
|
}
|
|
return err;
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_send
|
|
**
|
|
** Description Send, and if necessary fragment the next message.
|
|
**
|
|
**
|
|
** Returns Congested state; TRUE if CCB congested, FALSE if not.
|
|
**
|
|
*******************************************************************************/
|
|
BOOLEAN avdt_msg_send(tAVDT_CCB *p_ccb, BT_HDR *p_msg)
|
|
{
|
|
UINT16 curr_msg_len;
|
|
UINT8 pkt_type;
|
|
UINT8 hdr_len;
|
|
tAVDT_TC_TBL *p_tbl;
|
|
BT_HDR *p_buf;
|
|
UINT8 *p;
|
|
UINT8 label;
|
|
UINT8 msg;
|
|
UINT8 sig;
|
|
UINT8 nosp = 0; /* number of subsequent packets */
|
|
|
|
/* look up transport channel table entry to get peer mtu */
|
|
p_tbl = avdt_ad_tc_tbl_by_type(AVDT_CHAN_SIG, p_ccb, NULL);
|
|
|
|
/* set the current message if there is a message passed in */
|
|
if (p_msg != NULL) {
|
|
p_ccb->p_curr_msg = p_msg;
|
|
}
|
|
|
|
/* store copy of curr_msg->len */
|
|
curr_msg_len = p_ccb->p_curr_msg->len;
|
|
|
|
/* while not congested and we haven't sent it all */
|
|
while ((!p_ccb->cong) && (p_ccb->p_curr_msg != NULL)) {
|
|
/* check what kind of message we've got here; we are using the offset
|
|
** to indicate that a message is being fragmented
|
|
*/
|
|
|
|
/* if message isn't being fragmented and it fits in mtu */
|
|
if ((p_ccb->p_curr_msg->offset == AVDT_MSG_OFFSET) &&
|
|
(p_ccb->p_curr_msg->len <= p_tbl->peer_mtu - AVDT_LEN_TYPE_SINGLE)) {
|
|
pkt_type = AVDT_PKT_TYPE_SINGLE;
|
|
hdr_len = AVDT_LEN_TYPE_SINGLE;
|
|
p_buf = p_ccb->p_curr_msg;
|
|
}
|
|
/* if message isn't being fragmented and it doesn't fit in mtu */
|
|
else if ((p_ccb->p_curr_msg->offset == AVDT_MSG_OFFSET) &&
|
|
(p_ccb->p_curr_msg->len > p_tbl->peer_mtu - AVDT_LEN_TYPE_SINGLE)) {
|
|
pkt_type = AVDT_PKT_TYPE_START;
|
|
hdr_len = AVDT_LEN_TYPE_START;
|
|
nosp = (p_ccb->p_curr_msg->len + AVDT_LEN_TYPE_START - p_tbl->peer_mtu) /
|
|
(p_tbl->peer_mtu - 1) + 2;
|
|
|
|
/* get a new buffer for fragment we are sending */
|
|
if ((p_buf = (BT_HDR *) GKI_getpoolbuf(AVDT_CMD_POOL_ID)) == NULL) {
|
|
/* do we even want to try and recover from this? could do so
|
|
by setting retransmission timer */
|
|
return TRUE;
|
|
}
|
|
|
|
/* copy portion of data from current message to new buffer */
|
|
p_buf->offset = L2CAP_MIN_OFFSET + hdr_len;
|
|
p_buf->len = p_tbl->peer_mtu - hdr_len;
|
|
memcpy((UINT8 *)(p_buf + 1) + p_buf->offset,
|
|
(UINT8 *)(p_ccb->p_curr_msg + 1) + p_ccb->p_curr_msg->offset, p_buf->len);
|
|
}
|
|
/* if message is being fragmented and remaining bytes don't fit in mtu */
|
|
else if ((p_ccb->p_curr_msg->offset > AVDT_MSG_OFFSET) &&
|
|
(p_ccb->p_curr_msg->len > (p_tbl->peer_mtu - AVDT_LEN_TYPE_CONT))) {
|
|
pkt_type = AVDT_PKT_TYPE_CONT;
|
|
hdr_len = AVDT_LEN_TYPE_CONT;
|
|
|
|
/* get a new buffer for fragment we are sending */
|
|
if ((p_buf = (BT_HDR *) GKI_getpoolbuf(AVDT_CMD_POOL_ID)) == NULL) {
|
|
/* do we even want to try and recover from this? could do so
|
|
by setting retransmission timer */
|
|
return TRUE;
|
|
}
|
|
|
|
/* copy portion of data from current message to new buffer */
|
|
p_buf->offset = L2CAP_MIN_OFFSET + hdr_len;
|
|
p_buf->len = p_tbl->peer_mtu - hdr_len;
|
|
memcpy((UINT8 *)(p_buf + 1) + p_buf->offset,
|
|
(UINT8 *)(p_ccb->p_curr_msg + 1) + p_ccb->p_curr_msg->offset, p_buf->len);
|
|
}
|
|
/* if message is being fragmented and remaining bytes do fit in mtu */
|
|
else {
|
|
pkt_type = AVDT_PKT_TYPE_END;
|
|
hdr_len = AVDT_LEN_TYPE_END;
|
|
p_buf = p_ccb->p_curr_msg;
|
|
}
|
|
|
|
/* label, sig id, msg type are in hdr of p_curr_msg */
|
|
label = AVDT_LAYERSPEC_LABEL(p_ccb->p_curr_msg->layer_specific);
|
|
msg = AVDT_LAYERSPEC_MSG(p_ccb->p_curr_msg->layer_specific);
|
|
sig = (UINT8) p_ccb->p_curr_msg->event;
|
|
AVDT_TRACE_DEBUG("avdt_msg_send label:%d, msg:%d, sig:%d\n", label, msg, sig);
|
|
|
|
/* keep track of how much of msg we've sent */
|
|
curr_msg_len -= p_buf->len;
|
|
if (curr_msg_len == 0) {
|
|
/* entire message sent; mark as finished */
|
|
p_ccb->p_curr_msg = NULL;
|
|
|
|
/* start timer here for commands */
|
|
if (msg == AVDT_MSG_TYPE_CMD) {
|
|
/* if retransmit timeout set to zero, sig doesn't use retransmit */
|
|
if ((sig == AVDT_SIG_DISCOVER) || (sig == AVDT_SIG_GETCAP) ||
|
|
(sig == AVDT_SIG_SECURITY) || (avdt_cb.rcb.ret_tout == 0)) {
|
|
btu_start_timer(&p_ccb->timer_entry, BTU_TTYPE_AVDT_CCB_RSP, avdt_cb.rcb.sig_tout);
|
|
} else if (sig != AVDT_SIG_DELAY_RPT) {
|
|
btu_start_timer(&p_ccb->timer_entry, BTU_TTYPE_AVDT_CCB_RET, avdt_cb.rcb.ret_tout);
|
|
}
|
|
}
|
|
} else {
|
|
/* message being fragmented and not completely sent */
|
|
p_ccb->p_curr_msg->len -= p_buf->len;
|
|
p_ccb->p_curr_msg->offset += p_buf->len;
|
|
}
|
|
|
|
/* set up to build header */
|
|
p_buf->len += hdr_len;
|
|
p_buf->offset -= hdr_len;
|
|
p = (UINT8 *)(p_buf + 1) + p_buf->offset;
|
|
|
|
/* build header */
|
|
AVDT_MSG_BLD_HDR(p, label, pkt_type, msg);
|
|
if (pkt_type == AVDT_PKT_TYPE_START) {
|
|
AVDT_MSG_BLD_NOSP(p, nosp);
|
|
}
|
|
if ((pkt_type == AVDT_PKT_TYPE_START) || (pkt_type == AVDT_PKT_TYPE_SINGLE)) {
|
|
AVDT_MSG_BLD_SIG(p, sig);
|
|
}
|
|
|
|
/* send msg buffer down */
|
|
avdt_ad_write_req(AVDT_CHAN_SIG, p_ccb, NULL, p_buf);
|
|
}
|
|
return (p_ccb->cong);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_asmbl
|
|
**
|
|
** Description Reassemble incoming message.
|
|
**
|
|
**
|
|
** Returns Pointer to reassembled message; NULL if no message
|
|
** available.
|
|
**
|
|
*******************************************************************************/
|
|
BT_HDR *avdt_msg_asmbl(tAVDT_CCB *p_ccb, BT_HDR *p_buf)
|
|
{
|
|
UINT8 *p;
|
|
UINT8 pkt_type;
|
|
BT_HDR *p_ret;
|
|
UINT16 buf_len;
|
|
|
|
/* parse the message header */
|
|
p = (UINT8 *)(p_buf + 1) + p_buf->offset;
|
|
AVDT_MSG_PRS_PKT_TYPE(p, pkt_type);
|
|
|
|
/* quick sanity check on length */
|
|
if (p_buf->len < avdt_msg_pkt_type_len[pkt_type]) {
|
|
GKI_freebuf(p_buf);
|
|
AVDT_TRACE_WARNING("Bad length during reassembly");
|
|
p_ret = NULL;
|
|
}
|
|
/* single packet */
|
|
else if (pkt_type == AVDT_PKT_TYPE_SINGLE) {
|
|
/* if reassembly in progress drop message and process new single */
|
|
if (p_ccb->p_rx_msg != NULL) {
|
|
GKI_freebuf(p_ccb->p_rx_msg);
|
|
p_ccb->p_rx_msg = NULL;
|
|
AVDT_TRACE_WARNING("Got single during reassembly");
|
|
}
|
|
p_ret = p_buf;
|
|
}
|
|
/* start packet */
|
|
else if (pkt_type == AVDT_PKT_TYPE_START) {
|
|
/* if reassembly in progress drop message and process new single */
|
|
if (p_ccb->p_rx_msg != NULL) {
|
|
GKI_freebuf(p_ccb->p_rx_msg);
|
|
AVDT_TRACE_WARNING("Got start during reassembly");
|
|
}
|
|
p_ccb->p_rx_msg = p_buf;
|
|
|
|
/* copy first header byte over nosp */
|
|
*(p + 1) = *p;
|
|
|
|
/* set offset to point to where to copy next */
|
|
p_ccb->p_rx_msg->offset += p_ccb->p_rx_msg->len;
|
|
|
|
/* adjust length for packet header */
|
|
p_ccb->p_rx_msg->len -= 1;
|
|
|
|
p_ret = NULL;
|
|
}
|
|
/* continue or end */
|
|
else {
|
|
/* if no reassembly in progress drop message */
|
|
if (p_ccb->p_rx_msg == NULL) {
|
|
GKI_freebuf(p_buf);
|
|
AVDT_TRACE_WARNING("Pkt type=%d out of order\n", pkt_type);
|
|
p_ret = NULL;
|
|
} else {
|
|
/* get size of buffer holding assembled message */
|
|
buf_len = GKI_get_buf_size(p_ccb->p_rx_msg) - sizeof(BT_HDR);
|
|
|
|
/* adjust offset and len of fragment for header byte */
|
|
p_buf->offset += AVDT_LEN_TYPE_CONT;
|
|
p_buf->len -= AVDT_LEN_TYPE_CONT;
|
|
|
|
/* verify length */
|
|
if ((p_ccb->p_rx_msg->offset + p_buf->len) > buf_len) {
|
|
/* won't fit; free everything */
|
|
GKI_freebuf(p_ccb->p_rx_msg);
|
|
p_ccb->p_rx_msg = NULL;
|
|
GKI_freebuf(p_buf);
|
|
p_ret = NULL;
|
|
} else {
|
|
/* copy contents of p_buf to p_rx_msg */
|
|
memcpy((UINT8 *)(p_ccb->p_rx_msg + 1) + p_ccb->p_rx_msg->offset,
|
|
(UINT8 *)(p_buf + 1) + p_buf->offset, p_buf->len);
|
|
|
|
if (pkt_type == AVDT_PKT_TYPE_END) {
|
|
p_ccb->p_rx_msg->offset -= p_ccb->p_rx_msg->len;
|
|
p_ccb->p_rx_msg->len += p_buf->len;
|
|
p_ret = p_ccb->p_rx_msg;
|
|
p_ccb->p_rx_msg = NULL;
|
|
} else {
|
|
p_ccb->p_rx_msg->offset += p_buf->len;
|
|
p_ccb->p_rx_msg->len += p_buf->len;
|
|
p_ret = NULL;
|
|
}
|
|
GKI_freebuf(p_buf);
|
|
}
|
|
}
|
|
}
|
|
return p_ret;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_send_cmd
|
|
**
|
|
** Description This function is called to send a command message. The
|
|
** sig_id parameter indicates the message type, p_params
|
|
** points to the message parameters, if any. It gets a buffer
|
|
** from the AVDTP command pool, executes the message building
|
|
** function for this message type. It then queues the message
|
|
** in the command queue for this CCB.
|
|
**
|
|
**
|
|
** Returns Nothing.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_msg_send_cmd(tAVDT_CCB *p_ccb, void *p_scb, UINT8 sig_id, tAVDT_MSG *p_params)
|
|
{
|
|
BT_HDR *p_buf;
|
|
UINT8 *p;
|
|
UINT8 *p_start;
|
|
|
|
/* get a buffer */
|
|
p_buf = (BT_HDR *) GKI_getpoolbuf(AVDT_CMD_POOL_ID);
|
|
if (p_buf == NULL) {
|
|
AVDT_TRACE_ERROR("avdt_msg_send_cmd out of buffer!!");
|
|
return;
|
|
}
|
|
|
|
/* set up gki buf pointer and offset */
|
|
p_buf->offset = AVDT_MSG_OFFSET;
|
|
p_start = p = (UINT8 *)(p_buf + 1) + p_buf->offset;
|
|
|
|
/* execute parameter building function to build message */
|
|
(*avdt_msg_bld_cmd[sig_id - 1])(&p, p_params);
|
|
|
|
/* set len */
|
|
p_buf->len = (UINT16) (p - p_start);
|
|
|
|
/* now store scb hdls, if any, in buf */
|
|
if (p_scb != NULL) {
|
|
p = (UINT8 *)(p_buf + 1);
|
|
|
|
/* for start and suspend, p_scb points to array of handles */
|
|
if ((sig_id == AVDT_SIG_START) || (sig_id == AVDT_SIG_SUSPEND)) {
|
|
memcpy(p, (UINT8 *) p_scb, p_buf->len);
|
|
}
|
|
/* for all others, p_scb points to scb as usual */
|
|
else {
|
|
*p = avdt_scb_to_hdl((tAVDT_SCB *) p_scb);
|
|
}
|
|
}
|
|
|
|
/* stash sig, label, and message type in buf */
|
|
p_buf->event = sig_id;
|
|
AVDT_BLD_LAYERSPEC(p_buf->layer_specific, AVDT_MSG_TYPE_CMD, p_ccb->label);
|
|
|
|
/* increment label */
|
|
p_ccb->label = (p_ccb->label + 1) % 16;
|
|
|
|
/* queue message and trigger ccb to send it */
|
|
GKI_enqueue(&p_ccb->cmd_q, p_buf);
|
|
avdt_ccb_event(p_ccb, AVDT_CCB_SENDMSG_EVT, NULL);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_send_rsp
|
|
**
|
|
** Description This function is called to send a response message. The
|
|
** sig_id parameter indicates the message type, p_params
|
|
** points to the message parameters, if any. It gets a buffer
|
|
** from the AVDTP command pool, executes the message building
|
|
** function for this message type. It then queues the message
|
|
** in the response queue for this CCB.
|
|
**
|
|
**
|
|
** Returns Nothing.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_msg_send_rsp(tAVDT_CCB *p_ccb, UINT8 sig_id, tAVDT_MSG *p_params)
|
|
{
|
|
BT_HDR *p_buf;
|
|
UINT8 *p;
|
|
UINT8 *p_start;
|
|
|
|
/* get a buffer */
|
|
p_buf = (BT_HDR *) GKI_getpoolbuf(AVDT_CMD_POOL_ID);
|
|
if (p_buf == NULL) {
|
|
return;
|
|
}
|
|
|
|
/* set up gki buf pointer and offset */
|
|
p_buf->offset = AVDT_MSG_OFFSET;
|
|
p_start = p = (UINT8 *)(p_buf + 1) + p_buf->offset;
|
|
|
|
/* execute parameter building function to build message */
|
|
(*avdt_msg_bld_rsp[sig_id - 1])(&p, p_params);
|
|
|
|
/* set length */
|
|
p_buf->len = (UINT16) (p - p_start);
|
|
|
|
/* stash sig, label, and message type in buf */
|
|
p_buf->event = sig_id;
|
|
AVDT_BLD_LAYERSPEC(p_buf->layer_specific, AVDT_MSG_TYPE_RSP, p_params->hdr.label);
|
|
|
|
/* queue message and trigger ccb to send it */
|
|
GKI_enqueue(&p_ccb->rsp_q, p_buf);
|
|
avdt_ccb_event(p_ccb, AVDT_CCB_SENDMSG_EVT, NULL);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_send_rej
|
|
**
|
|
** Description This function is called to send a reject message. The
|
|
** sig_id parameter indicates the message type. It gets
|
|
** a buffer from the AVDTP command pool and builds the
|
|
** message based on the message type and the error code.
|
|
** It then queues the message in the response queue for
|
|
** this CCB.
|
|
**
|
|
**
|
|
** Returns Nothing.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_msg_send_rej(tAVDT_CCB *p_ccb, UINT8 sig_id, tAVDT_MSG *p_params)
|
|
{
|
|
BT_HDR *p_buf;
|
|
UINT8 *p;
|
|
UINT8 *p_start;
|
|
|
|
/* get a buffer */
|
|
p_buf = (BT_HDR *) GKI_getpoolbuf(AVDT_CMD_POOL_ID);
|
|
if (p_buf == NULL) {
|
|
return;
|
|
}
|
|
|
|
/* set up gki buf pointer and offset */
|
|
p_buf->offset = AVDT_MSG_OFFSET;
|
|
p_start = p = (UINT8 *)(p_buf + 1) + p_buf->offset;
|
|
|
|
/* if sig id included, build into message */
|
|
if (sig_id != AVDT_SIG_NONE) {
|
|
/* if this sig has a parameter, add the parameter */
|
|
if ((sig_id == AVDT_SIG_SETCONFIG) ||
|
|
(sig_id == AVDT_SIG_RECONFIG)) {
|
|
AVDT_MSG_BLD_PARAM(p, p_params->hdr.err_param);
|
|
} else if ((sig_id == AVDT_SIG_START) ||
|
|
(sig_id == AVDT_SIG_SUSPEND)) {
|
|
AVDT_MSG_BLD_SEID(p, p_params->hdr.err_param);
|
|
}
|
|
|
|
/* add the error code */
|
|
AVDT_MSG_BLD_ERR(p, p_params->hdr.err_code);
|
|
}
|
|
AVDT_TRACE_DEBUG("avdt_msg_send_rej");
|
|
|
|
/* calculate length */
|
|
p_buf->len = (UINT16) (p - p_start);
|
|
|
|
/* stash sig, label, and message type in buf */
|
|
p_buf->event = sig_id;
|
|
AVDT_BLD_LAYERSPEC(p_buf->layer_specific, AVDT_MSG_TYPE_REJ, p_params->hdr.label);
|
|
|
|
/* queue message and trigger ccb to send it */
|
|
GKI_enqueue(&p_ccb->rsp_q, p_buf);
|
|
avdt_ccb_event(p_ccb, AVDT_CCB_SENDMSG_EVT, NULL);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_send_grej
|
|
**
|
|
** Description This function is called to send a general reject message. The
|
|
** sig_id parameter indicates the message type. It gets
|
|
** a buffer from the AVDTP command pool and builds the
|
|
** message based on the message type and the error code.
|
|
** It then queues the message in the response queue for
|
|
** this CCB.
|
|
**
|
|
**
|
|
** Returns Nothing.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_msg_send_grej(tAVDT_CCB *p_ccb, UINT8 sig_id, tAVDT_MSG *p_params)
|
|
{
|
|
BT_HDR *p_buf;
|
|
UINT8 *p;
|
|
UINT8 *p_start;
|
|
|
|
/* get a buffer */
|
|
p_buf = (BT_HDR *) GKI_getpoolbuf(AVDT_CMD_POOL_ID);
|
|
if (p_buf == NULL) {
|
|
return;
|
|
}
|
|
|
|
/* set up gki buf pointer and offset */
|
|
p_buf->offset = AVDT_MSG_OFFSET;
|
|
p_start = p = (UINT8 *)(p_buf + 1) + p_buf->offset;
|
|
|
|
/* calculate length */
|
|
p_buf->len = (UINT16) (p - p_start);
|
|
|
|
/* stash sig, label, and message type in buf */
|
|
p_buf->event = 0;
|
|
AVDT_BLD_LAYERSPEC(p_buf->layer_specific, 0, p_params->hdr.label);
|
|
AVDT_TRACE_DEBUG("avdt_msg_send_grej");
|
|
|
|
/* queue message and trigger ccb to send it */
|
|
GKI_enqueue(&p_ccb->rsp_q, p_buf);
|
|
avdt_ccb_event(p_ccb, AVDT_CCB_SENDMSG_EVT, NULL);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_msg_ind
|
|
**
|
|
** Description This function is called by the adaption layer when an
|
|
** incoming message is received on the signaling channel.
|
|
** It parses the message and sends an event to the appropriate
|
|
** SCB or CCB for the message.
|
|
**
|
|
**
|
|
** Returns Nothing.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_msg_ind(tAVDT_CCB *p_ccb, BT_HDR *p_buf)
|
|
{
|
|
tAVDT_SCB *p_scb;
|
|
UINT8 *p;
|
|
BOOLEAN ok = TRUE;
|
|
BOOLEAN handle_rsp = FALSE;
|
|
BOOLEAN gen_rej = FALSE;
|
|
UINT8 label;
|
|
UINT8 pkt_type;
|
|
UINT8 msg_type;
|
|
UINT8 sig = 0;
|
|
tAVDT_MSG msg;
|
|
tAVDT_CFG cfg;
|
|
UINT8 err;
|
|
UINT8 evt = 0;
|
|
UINT8 scb_hdl;
|
|
|
|
/* reassemble message; if no message available (we received a fragment) return */
|
|
if ((p_buf = avdt_msg_asmbl(p_ccb, p_buf)) == NULL) {
|
|
return;
|
|
}
|
|
|
|
p = (UINT8 *)(p_buf + 1) + p_buf->offset;
|
|
|
|
/* parse the message header */
|
|
AVDT_MSG_PRS_HDR(p, label, pkt_type, msg_type);
|
|
|
|
UNUSED(pkt_type);
|
|
|
|
AVDT_TRACE_DEBUG("msg_type=%d, sig=%d\n", msg_type, sig);
|
|
/* set up label and ccb_idx in message hdr */
|
|
msg.hdr.label = label;
|
|
msg.hdr.ccb_idx = avdt_ccb_to_idx(p_ccb);
|
|
|
|
/* verify msg type */
|
|
if (msg_type == AVDT_MSG_TYPE_GRJ) {
|
|
AVDT_TRACE_WARNING("Dropping msg msg_type=%d\n", msg_type);
|
|
ok = FALSE;
|
|
}
|
|
/* check for general reject */
|
|
else if ((msg_type == AVDT_MSG_TYPE_REJ) && (p_buf->len == AVDT_LEN_GEN_REJ)) {
|
|
gen_rej = TRUE;
|
|
if (p_ccb->p_curr_cmd != NULL) {
|
|
msg.hdr.sig_id = sig = (UINT8) p_ccb->p_curr_cmd->event;
|
|
evt = avdt_msg_rej_2_evt[sig - 1];
|
|
msg.hdr.err_code = AVDT_ERR_NSC;
|
|
msg.hdr.err_param = 0;
|
|
}
|
|
} else { /* not a general reject */
|
|
/* get and verify signal */
|
|
AVDT_MSG_PRS_SIG(p, sig);
|
|
msg.hdr.sig_id = sig;
|
|
if ((sig == 0) || (sig > AVDT_SIG_MAX)) {
|
|
AVDT_TRACE_WARNING("Dropping msg sig=%d msg_type:%d\n", sig, msg_type);
|
|
ok = FALSE;
|
|
|
|
/* send a general reject */
|
|
if (msg_type == AVDT_MSG_TYPE_CMD) {
|
|
avdt_msg_send_grej(p_ccb, sig, &msg);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ok && !gen_rej) {
|
|
/* skip over header (msg length already verified during reassembly) */
|
|
p_buf->len -= AVDT_LEN_TYPE_SINGLE;
|
|
|
|
/* set up to parse message */
|
|
if ((msg_type == AVDT_MSG_TYPE_RSP) && (sig == AVDT_SIG_DISCOVER)) {
|
|
/* parse discover rsp message to struct supplied by app */
|
|
msg.discover_rsp.p_sep_info = (tAVDT_SEP_INFO *) p_ccb->p_proc_data;
|
|
msg.discover_rsp.num_seps = p_ccb->proc_param;
|
|
} else if ((msg_type == AVDT_MSG_TYPE_RSP) &&
|
|
((sig == AVDT_SIG_GETCAP) || (sig == AVDT_SIG_GET_ALLCAP))) {
|
|
/* parse discover rsp message to struct supplied by app */
|
|
msg.svccap.p_cfg = (tAVDT_CFG *) p_ccb->p_proc_data;
|
|
} else if ((msg_type == AVDT_MSG_TYPE_RSP) && (sig == AVDT_SIG_GETCONFIG)) {
|
|
/* parse get config rsp message to struct allocated locally */
|
|
msg.svccap.p_cfg = &cfg;
|
|
} else if ((msg_type == AVDT_MSG_TYPE_CMD) && (sig == AVDT_SIG_SETCONFIG)) {
|
|
/* parse config cmd message to struct allocated locally */
|
|
msg.config_cmd.p_cfg = &cfg;
|
|
} else if ((msg_type == AVDT_MSG_TYPE_CMD) && (sig == AVDT_SIG_RECONFIG)) {
|
|
/* parse reconfig cmd message to struct allocated locally */
|
|
msg.reconfig_cmd.p_cfg = &cfg;
|
|
}
|
|
|
|
/* parse message; while we're at it map message sig to event */
|
|
if (msg_type == AVDT_MSG_TYPE_CMD) {
|
|
msg.hdr.err_code = err = (*avdt_msg_prs_cmd[sig - 1])(&msg, p, p_buf->len);
|
|
evt = avdt_msg_cmd_2_evt[sig - 1];
|
|
} else if (msg_type == AVDT_MSG_TYPE_RSP) {
|
|
msg.hdr.err_code = err = (*avdt_msg_prs_rsp[sig - 1])(&msg, p, p_buf->len);
|
|
evt = avdt_msg_rsp_2_evt[sig - 1];
|
|
} else { /* msg_type == AVDT_MSG_TYPE_REJ */
|
|
err = avdt_msg_prs_rej(&msg, p, sig);
|
|
evt = avdt_msg_rej_2_evt[sig - 1];
|
|
}
|
|
|
|
/* if parsing failed */
|
|
if (err != 0) {
|
|
AVDT_TRACE_WARNING("Parsing failed sig=%d err=0x%x\n", sig, err);
|
|
|
|
/* if its a rsp or rej, drop it; if its a cmd, send a rej;
|
|
** note special case for abort; never send abort reject
|
|
*/
|
|
ok = FALSE;
|
|
if ((msg_type == AVDT_MSG_TYPE_CMD) && (sig != AVDT_SIG_ABORT)) {
|
|
avdt_msg_send_rej(p_ccb, sig, &msg);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* if its a rsp or rej, check sent cmd to see if we're waiting for
|
|
** the rsp or rej. If we didn't send a cmd for it, drop it. If
|
|
** it does match a cmd, stop timer for the cmd.
|
|
*/
|
|
if (ok) {
|
|
if ((msg_type == AVDT_MSG_TYPE_RSP) || (msg_type == AVDT_MSG_TYPE_REJ)) {
|
|
if ((p_ccb->p_curr_cmd != NULL) &&
|
|
(p_ccb->p_curr_cmd->event == sig) &&
|
|
(AVDT_LAYERSPEC_LABEL(p_ccb->p_curr_cmd->layer_specific) == label)) {
|
|
/* stop timer */
|
|
btu_stop_timer(&p_ccb->timer_entry);
|
|
|
|
/* clear retransmission count */
|
|
p_ccb->ret_count = 0;
|
|
|
|
/* later in this function handle ccb event */
|
|
handle_rsp = TRUE;
|
|
} else {
|
|
ok = FALSE;
|
|
AVDT_TRACE_WARNING("Cmd not found for rsp sig=%d label=%d\n", sig, label);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ok) {
|
|
/* if it's a ccb event send to ccb */
|
|
if (evt & AVDT_CCB_MKR) {
|
|
avdt_ccb_event(p_ccb, (UINT8)(evt & ~AVDT_CCB_MKR), (tAVDT_CCB_EVT *) &msg);
|
|
}
|
|
/* if it's a scb event */
|
|
else {
|
|
/* Scb events always have a single seid. For cmd, get seid from
|
|
** message. For rej and rsp, get seid from p_curr_cmd.
|
|
*/
|
|
if (msg_type == AVDT_MSG_TYPE_CMD) {
|
|
scb_hdl = msg.single.seid;
|
|
} else {
|
|
scb_hdl = *((UINT8 *)(p_ccb->p_curr_cmd + 1));
|
|
}
|
|
|
|
/* Map seid to the scb and send it the event. For cmd, seid has
|
|
** already been verified by parsing function.
|
|
*/
|
|
if (evt && (p_scb = avdt_scb_by_hdl(scb_hdl)) != NULL) {
|
|
avdt_scb_event(p_scb, evt, (tAVDT_SCB_EVT *) &msg);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* free message buffer */
|
|
GKI_freebuf(p_buf);
|
|
|
|
/* if its a rsp or rej, send event to ccb to free associated
|
|
** cmd msg buffer and handle cmd queue
|
|
*/
|
|
if (handle_rsp) {
|
|
avdt_ccb_event(p_ccb, AVDT_CCB_RCVRSP_EVT, NULL);
|
|
}
|
|
}
|
|
|
|
#endif /* #if (defined(AVDT_INCLUDED) && AVDT_INCLUDED == TRUE) */
|