163 lines
5.2 KiB
C
Executable File
163 lines
5.2 KiB
C
Executable File
/******************************************************************************
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*
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* Copyright (C) 2009-2012 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 is the implementation file for the MCAP Data Channel Action
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* Functions.
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*
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******************************************************************************/
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#include "bt_target.h"
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#include "gki.h"
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#include "mca_api.h"
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#include "mca_int.h"
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/*******************************************************************************
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**
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** Function mca_dcb_report_cong
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**
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** Description This function is called to report the congestion flag.
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**
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** Returns void.
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**
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*******************************************************************************/
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void mca_dcb_report_cong (tMCA_DCB *p_dcb)
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{
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tMCA_CTRL evt_data;
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evt_data.cong_chg.cong = p_dcb->cong;
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evt_data.cong_chg.mdl = mca_dcb_to_hdl(p_dcb);
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evt_data.cong_chg.mdl_id = p_dcb->mdl_id;
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mca_ccb_report_event (p_dcb->p_ccb, MCA_CONG_CHG_EVT, &evt_data);
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}
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/*******************************************************************************
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**
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** Function mca_dcb_tc_open
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**
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** Description This function is called to report MCA_OPEN_IND_EVT or
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** MCA_OPEN_CFM_EVT event.
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** It also clears the congestion flag (dcb.cong).
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**
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** Returns void.
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**
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*******************************************************************************/
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void mca_dcb_tc_open (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data)
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{
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tMCA_CTRL evt_data;
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tMCA_CCB *p_ccb = p_dcb->p_ccb;
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UINT8 event = MCA_OPEN_IND_EVT;
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if (p_data->open.param == MCA_INT)
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event = MCA_OPEN_CFM_EVT;
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p_dcb->cong = FALSE;
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evt_data.open_cfm.mtu = p_data->open.peer_mtu;
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evt_data.open_cfm.mdl_id = p_dcb->mdl_id;
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evt_data.open_cfm.mdl = mca_dcb_to_hdl(p_dcb);
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mca_ccb_event (p_ccb, MCA_CCB_DL_OPEN_EVT, NULL);
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mca_ccb_report_event (p_ccb, event, &evt_data);
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}
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/*******************************************************************************
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**
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** Function mca_dcb_cong
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**
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** Description This function sets the congestion state for the DCB.
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**
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** Returns void.
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**
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*******************************************************************************/
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void mca_dcb_cong (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data)
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{
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p_dcb->cong = p_data->llcong;
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mca_dcb_report_cong(p_dcb);
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}
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/*******************************************************************************
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**
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** Function mca_dcb_free_data
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**
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** Description This function frees the received message.
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**
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** Returns void.
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**
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*******************************************************************************/
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void mca_dcb_free_data (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data)
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{
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GKI_freebuf (p_data);
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}
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/*******************************************************************************
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**
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** Function mca_dcb_do_disconn
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**
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** Description This function closes a data channel.
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**
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** Returns void.
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**
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*******************************************************************************/
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void mca_dcb_do_disconn (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data)
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{
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tMCA_CLOSE close;
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if ((p_dcb->lcid == 0) || (L2CA_DisconnectReq(p_dcb->lcid) == FALSE))
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{
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close.param = MCA_INT;
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close.reason = L2CAP_DISC_OK;
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close.lcid = 0;
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mca_dcb_event(p_dcb, MCA_DCB_TC_CLOSE_EVT, (tMCA_DCB_EVT *) &close);
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}
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}
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/*******************************************************************************
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**
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** Function mca_dcb_snd_data
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**
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** Description This function sends the data from application to the peer device.
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**
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** Returns void.
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**
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*******************************************************************************/
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void mca_dcb_snd_data (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data)
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{
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UINT8 status;
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/* do not need to check cong, because API already checked the status */
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status = L2CA_DataWrite (p_dcb->lcid, p_data->p_pkt);
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if (status == L2CAP_DW_CONGESTED)
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{
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p_dcb->cong = TRUE;
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mca_dcb_report_cong(p_dcb);
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}
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}
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/*******************************************************************************
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**
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** Function mca_dcb_hdl_data
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**
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** Description This function reports the received data through the data
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** callback function.
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**
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** Returns void.
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**
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*******************************************************************************/
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void mca_dcb_hdl_data (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data)
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{
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(*p_dcb->p_cs->p_data_cback) (mca_dcb_to_hdl(p_dcb), (BT_HDR *)p_data);
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}
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