| /****************************************************************************** |
| * |
| * Copyright (C) 2009-2012 Broadcom Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ******************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * This is the implementation file for the MCAP Data Channel Action |
| * Functions. |
| * |
| ******************************************************************************/ |
| |
| #include <stddef.h> |
| #include "bt_target.h" |
| #include "bt_utils.h" |
| #include "bt_common.h" |
| #include "mca_api.h" |
| #include "mca_int.h" |
| #include "osi/include/osi.h" |
| |
| /******************************************************************************* |
| * |
| * Function mca_dcb_report_cong |
| * |
| * Description This function is called to report the congestion flag. |
| * |
| * Returns void. |
| * |
| ******************************************************************************/ |
| void mca_dcb_report_cong (tMCA_DCB *p_dcb) |
| { |
| tMCA_CTRL evt_data; |
| |
| evt_data.cong_chg.cong = p_dcb->cong; |
| evt_data.cong_chg.mdl = mca_dcb_to_hdl(p_dcb); |
| evt_data.cong_chg.mdl_id = p_dcb->mdl_id; |
| mca_ccb_report_event (p_dcb->p_ccb, MCA_CONG_CHG_EVT, &evt_data); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function mca_dcb_tc_open |
| * |
| * Description This function is called to report MCA_OPEN_IND_EVT or |
| * MCA_OPEN_CFM_EVT event. |
| * It also clears the congestion flag (dcb.cong). |
| * |
| * Returns void. |
| * |
| ******************************************************************************/ |
| void mca_dcb_tc_open (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data) |
| { |
| tMCA_CTRL evt_data; |
| tMCA_CCB *p_ccb = p_dcb->p_ccb; |
| uint8_t event = MCA_OPEN_IND_EVT; |
| |
| if (p_data->open.param == MCA_INT) |
| event = MCA_OPEN_CFM_EVT; |
| p_dcb->cong = false; |
| evt_data.open_cfm.mtu = p_data->open.peer_mtu; |
| evt_data.open_cfm.mdl_id = p_dcb->mdl_id; |
| evt_data.open_cfm.mdl = mca_dcb_to_hdl(p_dcb); |
| mca_ccb_event (p_ccb, MCA_CCB_DL_OPEN_EVT, NULL); |
| mca_ccb_report_event (p_ccb, event, &evt_data); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function mca_dcb_cong |
| * |
| * Description This function sets the congestion state for the DCB. |
| * |
| * Returns void. |
| * |
| ******************************************************************************/ |
| void mca_dcb_cong (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data) |
| { |
| p_dcb->cong = p_data->llcong; |
| mca_dcb_report_cong(p_dcb); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function mca_dcb_free_data |
| * |
| * Description This function frees the received message. |
| * |
| * Returns void. |
| * |
| ******************************************************************************/ |
| void mca_dcb_free_data(UNUSED_ATTR tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data) |
| { |
| osi_free(p_data); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function mca_dcb_do_disconn |
| * |
| * Description This function closes a data channel. |
| * |
| * Returns void. |
| * |
| ******************************************************************************/ |
| void mca_dcb_do_disconn (tMCA_DCB *p_dcb, |
| UNUSED_ATTR tMCA_DCB_EVT *p_data) |
| { |
| tMCA_CLOSE close; |
| |
| if ((p_dcb->lcid == 0) || (L2CA_DisconnectReq(p_dcb->lcid) == false)) |
| { |
| close.param = MCA_INT; |
| close.reason = L2CAP_DISC_OK; |
| close.lcid = 0; |
| mca_dcb_event(p_dcb, MCA_DCB_TC_CLOSE_EVT, (tMCA_DCB_EVT *) &close); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function mca_dcb_snd_data |
| * |
| * Description This function sends the data from application to the peer device. |
| * |
| * Returns void. |
| * |
| ******************************************************************************/ |
| void mca_dcb_snd_data (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data) |
| { |
| uint8_t status; |
| |
| /* do not need to check cong, because API already checked the status */ |
| status = L2CA_DataWrite (p_dcb->lcid, p_data->p_pkt); |
| if (status == L2CAP_DW_CONGESTED) |
| { |
| p_dcb->cong = true; |
| mca_dcb_report_cong(p_dcb); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function mca_dcb_hdl_data |
| * |
| * Description This function reports the received data through the data |
| * callback function. |
| * |
| * Returns void. |
| * |
| ******************************************************************************/ |
| void mca_dcb_hdl_data (tMCA_DCB *p_dcb, tMCA_DCB_EVT *p_data) |
| { |
| (*p_dcb->p_cs->p_data_cback) (mca_dcb_to_hdl(p_dcb), (BT_HDR *)p_data); |
| } |
| |