diff options
Diffstat (limited to 'stack/avdt/avdt_ad.c')
| -rw-r--r-- | stack/avdt/avdt_ad.c | 67 |
1 files changed, 40 insertions, 27 deletions
diff --git a/stack/avdt/avdt_ad.c b/stack/avdt/avdt_ad.c index cebbb93..92f429a 100644 --- a/stack/avdt/avdt_ad.c +++ b/stack/avdt/avdt_ad.c @@ -1,13 +1,26 @@ -/***************************************************************************** -** -** Name: avdt_ad.c -** -** Description: This module contains the AVDTP adaption layer. -** -** Copyright (c) 2002-2004, WIDCOMM Inc., All Rights Reserved. -** WIDCOMM Bluetooth Core. Proprietary and confidential. -** -*****************************************************************************/ +/****************************************************************************** + * + * Copyright (C) 2002-2012 Broadcom Corporation + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + ******************************************************************************/ + +/****************************************************************************** + * + * This module contains the AVDTP adaption layer. + * + ******************************************************************************/ #include <string.h> #include "data_types.h" @@ -25,7 +38,7 @@ ** Function avdt_ad_type_to_tcid ** ** Description Derives the TCID from the channel type and SCB. -** +** ** ** Returns TCID value. ** @@ -53,7 +66,7 @@ UINT8 avdt_ad_type_to_tcid(UINT8 type, tAVDT_SCB *p_scb) ** Function avdt_ad_tcid_to_type ** ** Description Derives the channel type from the TCID. -** +** ** ** Returns Channel type value. ** @@ -85,7 +98,7 @@ static UINT8 avdt_ad_tcid_to_type(UINT8 tcid) ** Function avdt_ad_init ** ** Description Initialize adaption layer. -** +** ** ** Returns Nothing. ** @@ -110,7 +123,7 @@ void avdt_ad_init(void) ** ** Description Find adaption layer transport channel table entry matching ** the given state. -** +** ** ** Returns Pointer to matching entry. For control channel it returns ** the matching entry. For media or other it returns the @@ -180,7 +193,7 @@ tAVDT_TC_TBL *avdt_ad_tc_tbl_by_st(UINT8 type, tAVDT_CCB *p_ccb, UINT8 state) ** Function avdt_ad_tc_tbl_by_lcid ** ** Description Find adaption layer transport channel table entry by LCID. -** +** ** ** Returns Pointer to entry. ** @@ -188,7 +201,7 @@ tAVDT_TC_TBL *avdt_ad_tc_tbl_by_st(UINT8 type, tAVDT_CCB *p_ccb, UINT8 state) tAVDT_TC_TBL *avdt_ad_tc_tbl_by_lcid(UINT16 lcid) { UINT8 idx; - + idx = avdt_cb.ad.lcid_tbl[lcid - L2CAP_BASE_APPL_CID]; if (idx < AVDT_NUM_TC_TBL) @@ -208,7 +221,7 @@ tAVDT_TC_TBL *avdt_ad_tc_tbl_by_lcid(UINT16 lcid) ** ** Description This function retrieves the transport channel table entry ** for a particular channel. -** +** ** ** Returns Pointer to transport channel table entry. ** @@ -242,7 +255,7 @@ tAVDT_TC_TBL *avdt_ad_tc_tbl_by_type(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_ ** Function avdt_ad_tc_tbl_alloc ** ** Description Allocate an entry in the traffic channel table. -** +** ** ** Returns Pointer to entry. ** @@ -278,7 +291,7 @@ tAVDT_TC_TBL *avdt_ad_tc_tbl_alloc(tAVDT_CCB *p_ccb) ** Function avdt_ad_tc_tbl_to_idx ** ** Description Convert a transport channel table entry to an index. -** +** ** ** Returns Index value. ** @@ -299,7 +312,7 @@ UINT8 avdt_ad_tc_tbl_to_idx(tAVDT_TC_TBL *p_tbl) ** the channel and sends it a close event. The reason ** parameter is the same value passed by the L2CAP ** callback function. -** +** ** ** Returns Nothing. ** @@ -345,7 +358,7 @@ void avdt_ad_tc_close_ind(tAVDT_TC_TBL *p_tbl, UINT16 reason) ** Description This function is called by the L2CAP interface when ** the L2CAP channel is opened. It looks up the CCB or SCB ** for the channel and sends it an open event. -** +** ** ** Returns Nothing. ** @@ -402,7 +415,7 @@ void avdt_ad_tc_open_ind(tAVDT_TC_TBL *p_tbl) ** or SCB for the channel and sends it a congestion event. ** The is_congested parameter is the same value passed by ** the L2CAP callback function. -** +** ** ** Returns Nothing. ** @@ -438,7 +451,7 @@ void avdt_ad_tc_cong_ind(tAVDT_TC_TBL *p_tbl, BOOLEAN is_congested) ** Description This function is called by the L2CAP interface layer when ** incoming data is received from L2CAP. It looks up the CCB ** or SCB for the channel and routes the data accordingly. -** +** ** ** Returns Nothing. ** @@ -479,7 +492,7 @@ void avdt_ad_tc_data_ind(tAVDT_TC_TBL *p_tbl, BT_HDR *p_buf) ** transport channel. It looks up the LCID of the channel ** based on the type, CCB, and SCB (if present). Then it ** passes the data to L2CA_DataWrite(). -** +** ** ** Returns AVDT_AD_SUCCESS, if data accepted, else FALSE ** AVDT_AD_CONGESTED, if data accepted and the channel is congested @@ -509,7 +522,7 @@ UINT8 avdt_ad_write_req(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb, BT_HDR * ** as an initiator the function will start an L2CAP connection. ** When opened as an acceptor the function simply configures ** the table entry to listen for an incoming channel. -** +** ** ** Returns Nothing. ** @@ -536,7 +549,7 @@ void avdt_ad_open_req(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb, UINT8 role /* otherwise get mtu from scb */ p_tbl->my_mtu = p_scb->cs.mtu; p_tbl->my_flush_to = p_scb->cs.flush_to; - + /* also set scb_hdl in rt_tbl */ avdt_cb.ad.rt_tbl[avdt_ccb_to_idx(p_ccb)][p_tbl->tcid].scb_hdl = avdt_scb_to_hdl(p_scb); AVDT_TRACE_DEBUG3("avdt_cb.ad.rt_tbl[%d][%d].scb_hdl = %d", @@ -582,7 +595,7 @@ void avdt_ad_open_req(UINT8 type, tAVDT_CCB *p_ccb, tAVDT_SCB *p_scb, UINT8 role ** Description This function is called by a CCB or SCB to close a ** transport channel. The function looks up the LCID for the ** channel and calls L2CA_DisconnectReq(). -** +** ** ** Returns Nothing. ** |