1084 lines
35 KiB
C
1084 lines
35 KiB
C
/******************************************************************************
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*
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* Copyright (C) 2006-2012 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 the action functions associated with the channel
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* control block state machine.
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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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#include "btm_api.h"
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#if (defined(AVDT_INCLUDED) && AVDT_INCLUDED == TRUE)
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/*******************************************************************************
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**
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** Function avdt_ccb_clear_ccb
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**
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** Description This function clears out certain buffers, queues, and
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** other data elements of a ccb.
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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_ccb_clear_ccb(tAVDT_CCB *p_ccb)
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{
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BT_HDR *p_buf;
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/* clear certain ccb variables */
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p_ccb->cong = FALSE;
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p_ccb->ret_count = 0;
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/* free message being fragmented */
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if (p_ccb->p_curr_msg != NULL) {
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GKI_freebuf(p_ccb->p_curr_msg);
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p_ccb->p_curr_msg = NULL;
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}
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/* free message being reassembled */
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if (p_ccb->p_rx_msg != NULL) {
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GKI_freebuf(p_ccb->p_rx_msg);
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p_ccb->p_rx_msg = NULL;
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}
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/* clear out response queue */
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while ((p_buf = (BT_HDR *) GKI_dequeue(&p_ccb->rsp_q)) != NULL) {
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GKI_freebuf(p_buf);
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}
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}
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/*******************************************************************************
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**
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** Function avdt_ccb_chan_open
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**
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** Description This function calls avdt_ad_open_req() to
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** initiate a signaling channel connection.
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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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void avdt_ccb_chan_open(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
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{
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UNUSED(p_data);
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BTM_SetOutService(p_ccb->peer_addr, BTM_SEC_SERVICE_AVDTP, AVDT_CHAN_SIG);
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avdt_ad_open_req(AVDT_CHAN_SIG, p_ccb, NULL, AVDT_INT);
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}
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/*******************************************************************************
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**
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** Function avdt_ccb_chan_close
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**
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** Description This function calls avdt_ad_close_req() to close a
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** signaling channel connection.
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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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void avdt_ccb_chan_close(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
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{
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UNUSED(p_data);
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/* close the transport channel used by this CCB */
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avdt_ad_close_req(AVDT_CHAN_SIG, p_ccb, NULL);
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}
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/*******************************************************************************
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**
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** Function avdt_ccb_chk_close
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**
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** Description This function checks for active streams on this CCB.
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** If there are none, it starts an idle timer.
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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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void avdt_ccb_chk_close(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
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{
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int i;
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tAVDT_SCB *p_scb = &avdt_cb.scb[0];
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UNUSED(p_data);
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/* see if there are any active scbs associated with this ccb */
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for (i = 0; i < AVDT_NUM_SEPS; i++, p_scb++) {
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if ((p_scb->allocated) && (p_scb->p_ccb == p_ccb)) {
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break;
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}
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}
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/* if no active scbs start idle timer */
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if (i == AVDT_NUM_SEPS) {
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btu_start_timer(&p_ccb->timer_entry, BTU_TTYPE_AVDT_CCB_IDLE, avdt_cb.rcb.idle_tout);
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}
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}
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/*******************************************************************************
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**
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** Function avdt_ccb_hdl_discover_cmd
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**
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** Description This function is called when a discover command is
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** received from the peer. It gathers up the stream
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** information for all allocated streams and initiates
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** sending of a discover response.
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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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void avdt_ccb_hdl_discover_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
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{
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tAVDT_SEP_INFO sep_info[AVDT_NUM_SEPS];
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tAVDT_SCB *p_scb = &avdt_cb.scb[0];
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int i;
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p_data->msg.discover_rsp.p_sep_info = sep_info;
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p_data->msg.discover_rsp.num_seps = 0;
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/* for all allocated scbs */
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for (i = 0; i < AVDT_NUM_SEPS; i++, p_scb++) {
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if (p_scb->allocated) {
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/* copy sep info */
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sep_info[p_data->msg.discover_rsp.num_seps].in_use = p_scb->in_use;
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sep_info[p_data->msg.discover_rsp.num_seps].seid = i + 1;
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sep_info[p_data->msg.discover_rsp.num_seps].media_type = p_scb->cs.media_type;
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sep_info[p_data->msg.discover_rsp.num_seps].tsep = p_scb->cs.tsep;
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p_data->msg.discover_rsp.num_seps++;
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}
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}
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/* send response */
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avdt_ccb_event(p_ccb, AVDT_CCB_API_DISCOVER_RSP_EVT, p_data);
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}
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/*******************************************************************************
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**
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** Function avdt_ccb_hdl_discover_rsp
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**
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** Description This function is called when a discover response or
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** reject is received from the peer. It calls the application
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** callback function with the results.
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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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void avdt_ccb_hdl_discover_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
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{
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/* we're done with procedure */
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p_ccb->proc_busy = FALSE;
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/* call app callback with results */
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(*p_ccb->proc_cback)(0, p_ccb->peer_addr, AVDT_DISCOVER_CFM_EVT,
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(tAVDT_CTRL *)(&p_data->msg.discover_rsp));
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}
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/*******************************************************************************
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**
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** Function avdt_ccb_hdl_getcap_cmd
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**
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** Description This function is called when a get capabilities command
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** is received from the peer. It retrieves the stream
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** configuration for the requested stream and initiates
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** sending of a get capabilities response.
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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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void avdt_ccb_hdl_getcap_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
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{
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tAVDT_SCB *p_scb;
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/* look up scb for seid sent to us */
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p_scb = avdt_scb_by_hdl(p_data->msg.single.seid);
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p_data->msg.svccap.p_cfg = &p_scb->cs.cfg;
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avdt_ccb_event(p_ccb, AVDT_CCB_API_GETCAP_RSP_EVT, p_data);
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}
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/*******************************************************************************
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**
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** Function avdt_ccb_hdl_getcap_rsp
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**
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** Description This function is called with a get capabilities response
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** or reject is received from the peer. It calls the
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** application callback function with the results.
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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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void avdt_ccb_hdl_getcap_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
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{
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/* we're done with procedure */
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p_ccb->proc_busy = FALSE;
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/* call app callback with results */
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(*p_ccb->proc_cback)(0, p_ccb->peer_addr, AVDT_GETCAP_CFM_EVT,
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(tAVDT_CTRL *)(&p_data->msg.svccap));
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}
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/*******************************************************************************
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**
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** Function avdt_ccb_hdl_start_cmd
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**
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** Description This function is called when a start command is received
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** from the peer. It verifies that all requested streams
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** are in the proper state. If so, it initiates sending of
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** a start response. Otherwise it sends a start reject.
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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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void avdt_ccb_hdl_start_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
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{
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UINT8 err_code = 0;
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/* verify all streams in the right state */
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UINT8 seid = avdt_scb_verify(p_ccb, AVDT_VERIFY_START, p_data->msg.multi.seid_list,
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p_data->msg.multi.num_seps, &err_code);
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if (seid == 0 && err_code == 0) {
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/* we're ok, send response */
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avdt_ccb_event(p_ccb, AVDT_CCB_API_START_RSP_EVT, p_data);
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} else {
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/* not ok, send reject */
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p_data->msg.hdr.err_code = err_code;
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p_data->msg.hdr.err_param = seid;
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avdt_msg_send_rej(p_ccb, AVDT_SIG_START, &p_data->msg);
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}
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}
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/*******************************************************************************
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**
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** Function avdt_ccb_hdl_start_rsp
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**
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** Description This function is called when a start response or reject
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** is received from the peer. Using the SEIDs stored in the
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** current command message, it sends a start response or start
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** reject event to each SCB associated with the command.
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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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void avdt_ccb_hdl_start_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
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{
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UINT8 event;
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int i;
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UINT8 *p;
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tAVDT_SCB *p_scb;
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/* determine rsp or rej event */
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event = (p_data->msg.hdr.err_code == 0) ?
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AVDT_SCB_MSG_START_RSP_EVT : AVDT_SCB_MSG_START_REJ_EVT;
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/* get to where seid's are stashed in current cmd */
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p = (UINT8 *)(p_ccb->p_curr_cmd + 1);
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/* little trick here; length of current command equals number of streams */
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for (i = 0; i < p_ccb->p_curr_cmd->len; i++) {
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if ((p_scb = avdt_scb_by_hdl(p[i])) != NULL) {
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avdt_scb_event(p_scb, event, (tAVDT_SCB_EVT *) &p_data->msg);
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}
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}
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}
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/*******************************************************************************
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**
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** Function avdt_ccb_hdl_suspend_cmd
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**
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** Description This function is called when a suspend command is received
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** from the peer. It verifies that all requested streams are
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** in the proper state. If so, it initiates sending of a
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** suspend response. Otherwise it sends a suspend reject.
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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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void avdt_ccb_hdl_suspend_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
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{
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UINT8 seid;
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UINT8 err_code = 0;
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/* verify all streams in the right state */
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if ((seid = avdt_scb_verify(p_ccb, AVDT_VERIFY_SUSPEND, p_data->msg.multi.seid_list,
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p_data->msg.multi.num_seps, &err_code)) == 0 &&
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err_code == 0) {
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/* we're ok, send response */
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avdt_ccb_event(p_ccb, AVDT_CCB_API_SUSPEND_RSP_EVT, p_data);
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} else {
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/* not ok, send reject */
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p_data->msg.hdr.err_code = err_code;
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p_data->msg.hdr.err_param = seid;
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avdt_msg_send_rej(p_ccb, AVDT_SIG_SUSPEND, &p_data->msg);
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}
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}
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/*******************************************************************************
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**
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** Function avdt_ccb_hdl_suspend_rsp
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**
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** Description This function is called when a suspend response or reject
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** is received from the peer. Using the SEIDs stored in the
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** current command message, it sends a suspend response or
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** suspend reject event to each SCB associated with the command.
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**
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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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void avdt_ccb_hdl_suspend_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
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{
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UINT8 event;
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int i;
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UINT8 *p;
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tAVDT_SCB *p_scb;
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/* determine rsp or rej event */
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event = (p_data->msg.hdr.err_code == 0) ?
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AVDT_SCB_MSG_SUSPEND_RSP_EVT : AVDT_SCB_MSG_SUSPEND_REJ_EVT;
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/* get to where seid's are stashed in current cmd */
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p = (UINT8 *)(p_ccb->p_curr_cmd + 1);
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/* little trick here; length of current command equals number of streams */
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for (i = 0; i < p_ccb->p_curr_cmd->len; i++) {
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if ((p_scb = avdt_scb_by_hdl(p[i])) != NULL) {
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avdt_scb_event(p_scb, event, (tAVDT_SCB_EVT *) &p_data->msg);
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}
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}
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}
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/*******************************************************************************
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**
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** Function avdt_ccb_snd_discover_cmd
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**
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** Description This function is called to send a discover command to the
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** peer. It copies variables needed for the procedure from
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** the event to the CCB. It marks the CCB as busy and then
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** sends a discover command.
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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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void avdt_ccb_snd_discover_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
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{
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/* store info in ccb struct */
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p_ccb->p_proc_data = p_data->discover.p_sep_info;
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p_ccb->proc_cback = p_data->discover.p_cback;
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p_ccb->proc_param = p_data->discover.num_seps;
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/* we're busy */
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p_ccb->proc_busy = TRUE;
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/* build and queue discover req */
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avdt_msg_send_cmd(p_ccb, NULL, AVDT_SIG_DISCOVER, NULL);
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}
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/*******************************************************************************
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**
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** Function avdt_ccb_snd_discover_rsp
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**
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** Description This function is called to send a discover response to
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** the peer. It takes the stream information passed in the
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** event and sends a discover response.
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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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void avdt_ccb_snd_discover_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
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{
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/* send response */
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avdt_msg_send_rsp(p_ccb, AVDT_SIG_DISCOVER, &p_data->msg);
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}
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/*******************************************************************************
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**
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** Function avdt_ccb_snd_getcap_cmd
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**
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** Description This function is called to send a get capabilities command
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** to the peer. It copies variables needed for the procedure
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** from the event to the CCB. It marks the CCB as busy and
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** then sends a get capabilities command.
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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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void avdt_ccb_snd_getcap_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
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{
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UINT8 sig_id = AVDT_SIG_GETCAP;
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/* store info in ccb struct */
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p_ccb->p_proc_data = p_data->getcap.p_cfg;
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p_ccb->proc_cback = p_data->getcap.p_cback;
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/* we're busy */
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p_ccb->proc_busy = TRUE;
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/* build and queue discover req */
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if (p_data->msg.hdr.sig_id == AVDT_SIG_GET_ALLCAP) {
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sig_id = AVDT_SIG_GET_ALLCAP;
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}
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avdt_msg_send_cmd(p_ccb, NULL, sig_id, (tAVDT_MSG *) &p_data->getcap.single);
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}
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/*******************************************************************************
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**
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** Function avdt_ccb_snd_getcap_rsp
|
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**
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** Description This function is called to send a get capabilities response
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** to the peer. It takes the stream information passed in the
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** event and sends a get capabilities response.
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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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void avdt_ccb_snd_getcap_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
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{
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UINT8 sig_id = AVDT_SIG_GETCAP;
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if (p_data->msg.hdr.sig_id == AVDT_SIG_GET_ALLCAP) {
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sig_id = AVDT_SIG_GET_ALLCAP;
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}
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/* send response */
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avdt_msg_send_rsp(p_ccb, sig_id, &p_data->msg);
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}
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/*******************************************************************************
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**
|
|
** Function avdt_ccb_snd_start_cmd
|
|
**
|
|
** Description This function is called to send a start command to the
|
|
** peer. It verifies that all requested streams are in the
|
|
** proper state. If so, it sends a start command. Otherwise
|
|
** send ourselves back a start reject.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_snd_start_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
int i;
|
|
tAVDT_SCB *p_scb;
|
|
tAVDT_MSG avdt_msg;
|
|
UINT8 seid_list[AVDT_NUM_SEPS];
|
|
|
|
/* make copy of our seid list */
|
|
memcpy(seid_list, p_data->msg.multi.seid_list, p_data->msg.multi.num_seps);
|
|
|
|
/* verify all streams in the right state */
|
|
if ((avdt_msg.hdr.err_param = avdt_scb_verify(p_ccb, AVDT_VERIFY_OPEN, p_data->msg.multi.seid_list,
|
|
p_data->msg.multi.num_seps, &avdt_msg.hdr.err_code)) == 0) {
|
|
/* set peer seid list in messsage */
|
|
avdt_scb_peer_seid_list(&p_data->msg.multi);
|
|
|
|
/* send command */
|
|
avdt_msg_send_cmd(p_ccb, seid_list, AVDT_SIG_START, &p_data->msg);
|
|
} else {
|
|
/* failed; send ourselves a reject for each stream */
|
|
for (i = 0; i < p_data->msg.multi.num_seps; i++) {
|
|
if ((p_scb = avdt_scb_by_hdl(seid_list[i])) != NULL) {
|
|
avdt_scb_event(p_scb, AVDT_SCB_MSG_START_REJ_EVT, (tAVDT_SCB_EVT *) &avdt_msg.hdr);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_snd_start_rsp
|
|
**
|
|
** Description This function is called to send a start response to the
|
|
** peer. It takes the stream information passed in the event
|
|
** and sends a start response. Then it sends a start event
|
|
** to the SCB for each stream.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_snd_start_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
tAVDT_SCB *p_scb;
|
|
int i;
|
|
|
|
/* send response message */
|
|
avdt_msg_send_rsp(p_ccb, AVDT_SIG_START, &p_data->msg);
|
|
|
|
/* send start event to each scb */
|
|
for (i = 0; i < p_data->msg.multi.num_seps; i++) {
|
|
if ((p_scb = avdt_scb_by_hdl(p_data->msg.multi.seid_list[i])) != NULL) {
|
|
avdt_scb_event(p_scb, AVDT_SCB_MSG_START_CMD_EVT, NULL);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_snd_suspend_cmd
|
|
**
|
|
** Description This function is called to send a suspend command to the
|
|
** peer. It verifies that all requested streams are in the
|
|
** proper state. If so, it sends a suspend command.
|
|
** Otherwise it calls the callback function for each requested
|
|
** stream and sends a suspend confirmation with failure.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_snd_suspend_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
int i;
|
|
tAVDT_SCB *p_scb;
|
|
tAVDT_MSG avdt_msg;
|
|
UINT8 seid_list[AVDT_NUM_SEPS];
|
|
|
|
/* make copy of our seid list */
|
|
memcpy(seid_list, p_data->msg.multi.seid_list, p_data->msg.multi.num_seps);
|
|
|
|
/* verify all streams in the right state */
|
|
if ((avdt_msg.hdr.err_param = avdt_scb_verify(p_ccb, AVDT_VERIFY_STREAMING, p_data->msg.multi.seid_list,
|
|
p_data->msg.multi.num_seps, &avdt_msg.hdr.err_code)) == 0) {
|
|
/* set peer seid list in messsage */
|
|
avdt_scb_peer_seid_list(&p_data->msg.multi);
|
|
|
|
/* send command */
|
|
avdt_msg_send_cmd(p_ccb, seid_list, AVDT_SIG_SUSPEND, &p_data->msg);
|
|
} else {
|
|
/* failed; send ourselves a reject for each stream */
|
|
for (i = 0; i < p_data->msg.multi.num_seps; i++) {
|
|
if ((p_scb = avdt_scb_by_hdl(seid_list[i])) != NULL) {
|
|
avdt_scb_event(p_scb, AVDT_SCB_MSG_SUSPEND_REJ_EVT, (tAVDT_SCB_EVT *) &avdt_msg.hdr);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_snd_suspend_rsp
|
|
**
|
|
** Description This function is called to send a suspend response to the
|
|
** peer. It takes the stream information passed in the event
|
|
** and sends a suspend response. Then it sends a suspend event
|
|
** to the SCB for each stream.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_snd_suspend_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
tAVDT_SCB *p_scb;
|
|
int i;
|
|
|
|
/* send response message */
|
|
avdt_msg_send_rsp(p_ccb, AVDT_SIG_SUSPEND, &p_data->msg);
|
|
|
|
/* send start event to each scb */
|
|
for (i = 0; i < p_data->msg.multi.num_seps; i++) {
|
|
if ((p_scb = avdt_scb_by_hdl(p_data->msg.multi.seid_list[i])) != NULL) {
|
|
avdt_scb_event(p_scb, AVDT_SCB_MSG_SUSPEND_CMD_EVT, NULL);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_clear_cmds
|
|
**
|
|
** Description This function is called when the signaling channel is
|
|
** closed to clean up any pending commands. For each pending
|
|
** command in the command queue, it frees the command and
|
|
** calls the application callback function indicating failure.
|
|
** Certain CCB variables are also initialized.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_clear_cmds(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
int i;
|
|
tAVDT_SCB *p_scb = &avdt_cb.scb[0];
|
|
UINT8 err_code = AVDT_ERR_CONNECT;
|
|
UNUSED(p_data);
|
|
|
|
/* clear the ccb */
|
|
avdt_ccb_clear_ccb(p_ccb);
|
|
|
|
/* clear out command queue; this is a little tricky here; we need
|
|
** to handle the case where there is a command on deck in p_curr_cmd,
|
|
** plus we need to clear out the queue
|
|
*/
|
|
do {
|
|
/* we know p_curr_cmd = NULL after this */
|
|
avdt_ccb_cmd_fail(p_ccb, (tAVDT_CCB_EVT *) &err_code);
|
|
|
|
/* set up next message */
|
|
p_ccb->p_curr_cmd = (BT_HDR *) GKI_dequeue(&p_ccb->cmd_q);
|
|
|
|
} while (p_ccb->p_curr_cmd != NULL);
|
|
|
|
/* send a CC_CLOSE_EVT any active scbs associated with this ccb */
|
|
for (i = 0; i < AVDT_NUM_SEPS; i++, p_scb++) {
|
|
if ((p_scb->allocated) && (p_scb->p_ccb == p_ccb)) {
|
|
avdt_scb_event(p_scb, AVDT_SCB_CC_CLOSE_EVT, NULL);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_cmd_fail
|
|
**
|
|
** Description This function is called when there is a response timeout.
|
|
** The currently pending command is freed and we fake a
|
|
** reject message back to ourselves.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_cmd_fail(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
tAVDT_MSG msg;
|
|
UINT8 evt;
|
|
tAVDT_SCB *p_scb;
|
|
|
|
if (p_ccb->p_curr_cmd != NULL) {
|
|
/* set up data */
|
|
msg.hdr.err_code = p_data->err_code;
|
|
msg.hdr.err_param = 0;
|
|
msg.hdr.ccb_idx = avdt_ccb_to_idx(p_ccb);
|
|
|
|
/* pretend that we received a rej message */
|
|
evt = avdt_msg_rej_2_evt[p_ccb->p_curr_cmd->event - 1];
|
|
|
|
if (evt & AVDT_CCB_MKR) {
|
|
avdt_ccb_event(p_ccb, (UINT8) (evt & ~AVDT_CCB_MKR), (tAVDT_CCB_EVT *) &msg);
|
|
} else {
|
|
/* we get the scb out of the current cmd */
|
|
p_scb = avdt_scb_by_hdl(*((UINT8 *)(p_ccb->p_curr_cmd + 1)));
|
|
if (p_scb != NULL) {
|
|
avdt_scb_event(p_scb, evt, (tAVDT_SCB_EVT *) &msg);
|
|
}
|
|
}
|
|
|
|
GKI_freebuf(p_ccb->p_curr_cmd);
|
|
p_ccb->p_curr_cmd = NULL;
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_free_cmd
|
|
**
|
|
** Description This function is called when a response is received for a
|
|
** currently pending command. The command is freed.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_free_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
UNUSED(p_data);
|
|
|
|
if (p_ccb->p_curr_cmd != NULL) {
|
|
GKI_freebuf(p_ccb->p_curr_cmd);
|
|
p_ccb->p_curr_cmd = NULL;
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_cong_state
|
|
**
|
|
** Description This function is called to set the congestion state for
|
|
** the CCB.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_cong_state(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
p_ccb->cong = p_data->llcong;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_ret_cmd
|
|
**
|
|
** Description This function is called to retransmit the currently
|
|
** pending command. The retransmission count is incremented.
|
|
** If the count reaches the maximum number of retransmissions,
|
|
** the event is treated as a response timeout.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_ret_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
UINT8 err_code = AVDT_ERR_TIMEOUT;
|
|
BT_HDR *p_msg;
|
|
|
|
p_ccb->ret_count++;
|
|
if (p_ccb->ret_count == AVDT_RET_MAX) {
|
|
/* command failed */
|
|
p_ccb->ret_count = 0;
|
|
avdt_ccb_cmd_fail(p_ccb, (tAVDT_CCB_EVT *) &err_code);
|
|
|
|
/* go to next queued command */
|
|
avdt_ccb_snd_cmd(p_ccb, p_data);
|
|
} else {
|
|
/* if command pending and we're not congested and not sending a fragment */
|
|
if ((!p_ccb->cong) && (p_ccb->p_curr_msg == NULL) && (p_ccb->p_curr_cmd != NULL)) {
|
|
/* make copy of message in p_curr_cmd and send it */
|
|
if ((p_msg = (BT_HDR *) GKI_getpoolbuf(AVDT_CMD_POOL_ID)) != NULL) {
|
|
memcpy(p_msg, p_ccb->p_curr_cmd,
|
|
(sizeof(BT_HDR) + p_ccb->p_curr_cmd->offset + p_ccb->p_curr_cmd->len));
|
|
avdt_msg_send(p_ccb, p_msg);
|
|
}
|
|
}
|
|
|
|
/* restart timer */
|
|
btu_start_timer(&p_ccb->timer_entry, BTU_TTYPE_AVDT_CCB_RET, avdt_cb.rcb.ret_tout);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_snd_cmd
|
|
**
|
|
** Description This function is called the send the next command,
|
|
** if any, in the command queue.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_snd_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
BT_HDR *p_msg;
|
|
UNUSED(p_data);
|
|
|
|
/* do we have commands to send? send next command; make sure we're clear;
|
|
** not congested, not sending fragment, not waiting for response
|
|
*/
|
|
if ((!p_ccb->cong) && (p_ccb->p_curr_msg == NULL) && (p_ccb->p_curr_cmd == NULL)) {
|
|
if ((p_msg = (BT_HDR *) GKI_dequeue(&p_ccb->cmd_q)) != NULL) {
|
|
/* make a copy of buffer in p_curr_cmd */
|
|
if ((p_ccb->p_curr_cmd = (BT_HDR *) GKI_getpoolbuf(AVDT_CMD_POOL_ID)) != NULL) {
|
|
memcpy(p_ccb->p_curr_cmd, p_msg, (sizeof(BT_HDR) + p_msg->offset + p_msg->len));
|
|
|
|
avdt_msg_send(p_ccb, p_msg);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_snd_msg
|
|
**
|
|
** Description
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_snd_msg(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
BT_HDR *p_msg;
|
|
UNUSED(p_data);
|
|
|
|
/* if not congested */
|
|
if (!p_ccb->cong) {
|
|
/* are we sending a fragmented message? continue sending fragment */
|
|
if (p_ccb->p_curr_msg != NULL) {
|
|
avdt_msg_send(p_ccb, NULL);
|
|
}
|
|
/* do we have responses to send? send them */
|
|
else if (!GKI_queue_is_empty(&p_ccb->rsp_q)) {
|
|
while ((p_msg = (BT_HDR *) GKI_dequeue(&p_ccb->rsp_q)) != NULL) {
|
|
if (avdt_msg_send(p_ccb, p_msg) == TRUE) {
|
|
/* break out if congested */
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* do we have commands to send? send next command */
|
|
avdt_ccb_snd_cmd(p_ccb, NULL);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_set_reconn
|
|
**
|
|
** Description This function is called to enable a reconnect attempt when
|
|
** a channel transitions from closing to idle state. It sets
|
|
** the reconn variable to TRUE.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_set_reconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
UNUSED(p_data);
|
|
|
|
p_ccb->reconn = TRUE;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_clr_reconn
|
|
**
|
|
** Description This function is called to clear the reconn variable.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_clr_reconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
UNUSED(p_data);
|
|
|
|
p_ccb->reconn = FALSE;
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_chk_reconn
|
|
**
|
|
** Description This function is called to check if a reconnect attempt
|
|
** is enabled. If enabled, it sends an AVDT_CCB_UL_OPEN_EVT
|
|
** to the CCB. If disabled, the CCB is deallocated.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_chk_reconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
UINT8 err_code = AVDT_ERR_CONNECT;
|
|
UNUSED(p_data);
|
|
|
|
if (p_ccb->reconn) {
|
|
p_ccb->reconn = FALSE;
|
|
|
|
/* clear out ccb */
|
|
avdt_ccb_clear_ccb(p_ccb);
|
|
|
|
/* clear out current command, if any */
|
|
avdt_ccb_cmd_fail(p_ccb, (tAVDT_CCB_EVT *) &err_code);
|
|
|
|
/* reopen the signaling channel */
|
|
avdt_ccb_event(p_ccb, AVDT_CCB_UL_OPEN_EVT, NULL);
|
|
} else {
|
|
avdt_ccb_ll_closed(p_ccb, NULL);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_chk_timer
|
|
**
|
|
** Description This function stops the CCB timer if the idle timer is
|
|
** running.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_chk_timer(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
UNUSED(p_data);
|
|
|
|
if (p_ccb->timer_entry.event == BTU_TTYPE_AVDT_CCB_IDLE) {
|
|
btu_stop_timer(&p_ccb->timer_entry);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_set_conn
|
|
**
|
|
** Description Set CCB variables associated with AVDT_ConnectReq().
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_set_conn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
/* save callback */
|
|
p_ccb->p_conn_cback = p_data->connect.p_cback;
|
|
|
|
/* set security level */
|
|
BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_AVDTP, p_data->connect.sec_mask,
|
|
AVDT_PSM, BTM_SEC_PROTO_AVDT, AVDT_CHAN_SIG);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_set_disconn
|
|
**
|
|
** Description Set CCB variables associated with AVDT_DisconnectReq().
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_set_disconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
/*
|
|
AVDT_TRACE_EVENT("avdt_ccb_set_disconn:conn:x%x, api:x%x",
|
|
p_ccb->p_conn_cback, p_data->disconnect.p_cback);
|
|
*/
|
|
/* save callback */
|
|
if (p_data->disconnect.p_cback) {
|
|
p_ccb->p_conn_cback = p_data->disconnect.p_cback;
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_do_disconn
|
|
**
|
|
** Description Do action associated with AVDT_DisconnectReq().
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_do_disconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
UNUSED(p_data);
|
|
|
|
/* clear any pending commands */
|
|
avdt_ccb_clear_cmds(p_ccb, NULL);
|
|
|
|
/* close channel */
|
|
avdt_ccb_chan_close(p_ccb, NULL);
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_ll_closed
|
|
**
|
|
** Description Clear commands from and deallocate CCB.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_ll_closed(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
tAVDT_CTRL_CBACK *p_cback;
|
|
BD_ADDR bd_addr;
|
|
tAVDT_CTRL avdt_ctrl;
|
|
UINT8 disc_rsn;
|
|
UNUSED(p_data);
|
|
|
|
/* clear any pending commands */
|
|
avdt_ccb_clear_cmds(p_ccb, NULL);
|
|
|
|
/* save callback pointer, bd addr */
|
|
p_cback = p_ccb->p_conn_cback;
|
|
if (!p_cback) {
|
|
p_cback = avdt_cb.p_conn_cback;
|
|
}
|
|
memcpy(bd_addr, p_ccb->peer_addr, BD_ADDR_LEN);
|
|
|
|
disc_rsn = p_ccb->disc_rsn;
|
|
|
|
/* dealloc ccb */
|
|
avdt_ccb_dealloc(p_ccb, NULL);
|
|
|
|
/* call callback */
|
|
if (p_cback) {
|
|
avdt_ctrl.hdr.err_code = 0;
|
|
avdt_ctrl.hdr.err_param = disc_rsn;
|
|
|
|
(*p_cback)(0, bd_addr, AVDT_DISCONNECT_IND_EVT, &avdt_ctrl);
|
|
}
|
|
}
|
|
|
|
/*******************************************************************************
|
|
**
|
|
** Function avdt_ccb_ll_opened
|
|
**
|
|
** Description Call callback on open.
|
|
**
|
|
**
|
|
** Returns void.
|
|
**
|
|
*******************************************************************************/
|
|
void avdt_ccb_ll_opened(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data)
|
|
{
|
|
tAVDT_CTRL avdt_ctrl;
|
|
|
|
p_ccb->ll_opened = TRUE;
|
|
|
|
if (!p_ccb->p_conn_cback) {
|
|
p_ccb->p_conn_cback = avdt_cb.p_conn_cback;
|
|
}
|
|
|
|
/* call callback */
|
|
if (p_ccb->p_conn_cback) {
|
|
avdt_ctrl.hdr.err_code = 0;
|
|
avdt_ctrl.hdr.err_param = p_data->msg.hdr.err_param;
|
|
(*p_ccb->p_conn_cback)(0, p_ccb->peer_addr, AVDT_CONNECT_IND_EVT, &avdt_ctrl);
|
|
}
|
|
}
|
|
|
|
#endif /* #if (defined(AVDT_INCLUDED) && AVDT_INCLUDED == TRUE) */
|