diff options
Diffstat (limited to 'stack/avdt/avdt_ccb_act.c')
| -rw-r--r-- | stack/avdt/avdt_ccb_act.c | 135 |
1 files changed, 74 insertions, 61 deletions
diff --git a/stack/avdt/avdt_ccb_act.c b/stack/avdt/avdt_ccb_act.c index 87de480..5719be9 100644 --- a/stack/avdt/avdt_ccb_act.c +++ b/stack/avdt/avdt_ccb_act.c @@ -1,14 +1,27 @@ -/***************************************************************************** -** -** Name: avdt_ccb_act.c -** -** Description: This module contains the action functions associated -** with the channel control block state machine. -** -** Copyright (c) 2006-2008, Broadcom Corp., All Rights Reserved. -** WIDCOMM Bluetooth Core. Proprietary and confidential. -** -*****************************************************************************/ +/****************************************************************************** + * + * Copyright (C) 2006-2012 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 action functions associated with the channel + * control block state machine. + * + ******************************************************************************/ #include <string.h> #include "data_types.h" @@ -24,9 +37,9 @@ ** ** Function avdt_ccb_clear_ccb ** -** Description This function clears out certain buffers, queues, and +** Description This function clears out certain buffers, queues, and ** other data elements of a ccb. -** +** ** ** Returns void. ** @@ -66,7 +79,7 @@ static void avdt_ccb_clear_ccb(tAVDT_CCB *p_ccb) ** ** Description This function calls avdt_ad_open_req() to ** initiate a signaling channel connection. -** +** ** ** Returns void. ** @@ -83,7 +96,7 @@ void avdt_ccb_chan_open(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** ** Description This function calls avdt_ad_close_req() to close a ** signaling channel connection. -** +** ** ** Returns void. ** @@ -100,7 +113,7 @@ void avdt_ccb_chan_close(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** ** Description This function checks for active streams on this CCB. ** If there are none, it starts an idle timer. -** +** ** ** Returns void. ** @@ -134,7 +147,7 @@ void avdt_ccb_chk_close(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** received from the peer. It gathers up the stream ** information for all allocated streams and initiates ** sending of a discover response. -** +** ** ** Returns void. ** @@ -144,7 +157,7 @@ void avdt_ccb_hdl_discover_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) tAVDT_SEP_INFO sep_info[AVDT_NUM_SEPS]; tAVDT_SCB *p_scb = &avdt_cb.scb[0]; int i; - + p_data->msg.discover_rsp.p_sep_info = sep_info; p_data->msg.discover_rsp.num_seps = 0; @@ -174,7 +187,7 @@ void avdt_ccb_hdl_discover_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** Description This function is called when a discover response or ** reject is received from the peer. It calls the application ** callback function with the results. -** +** ** ** Returns void. ** @@ -185,7 +198,7 @@ void avdt_ccb_hdl_discover_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) p_ccb->proc_busy = FALSE; /* call app callback with results */ - (*p_ccb->proc_cback)(0, p_ccb->peer_addr, AVDT_DISCOVER_CFM_EVT, + (*p_ccb->proc_cback)(0, p_ccb->peer_addr, AVDT_DISCOVER_CFM_EVT, (tAVDT_CTRL *)(&p_data->msg.discover_rsp)); } @@ -197,7 +210,7 @@ void avdt_ccb_hdl_discover_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** is received from the peer. It retrieves the stream ** configuration for the requested stream and initiates ** sending of a get capabilities response. -** +** ** ** Returns void. ** @@ -221,7 +234,7 @@ void avdt_ccb_hdl_getcap_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** Description This function is called with a get capabilities response ** or reject is received from the peer. It calls the ** application callback function with the results. -** +** ** ** Returns void. ** @@ -232,7 +245,7 @@ void avdt_ccb_hdl_getcap_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) p_ccb->proc_busy = FALSE; /* call app callback with results */ - (*p_ccb->proc_cback)(0, p_ccb->peer_addr, AVDT_GETCAP_CFM_EVT, + (*p_ccb->proc_cback)(0, p_ccb->peer_addr, AVDT_GETCAP_CFM_EVT, (tAVDT_CTRL *)(&p_data->msg.svccap)); } @@ -244,7 +257,7 @@ void avdt_ccb_hdl_getcap_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** from the peer. It verifies that all requested streams ** are in the proper state. If so, it initiates sending of ** a start response. Otherwise it sends a start reject. -** +** ** ** Returns void. ** @@ -278,7 +291,7 @@ void avdt_ccb_hdl_start_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** is received from the peer. Using the SEIDs stored in the ** current command message, it sends a start response or start ** reject event to each SCB associated with the command. -** +** ** ** Returns void. ** @@ -316,7 +329,7 @@ void avdt_ccb_hdl_start_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** in the proper state. If so, it initiates sending of a ** suspend response. Otherwise it sends a suspend reject. -** +** ** ** Returns void. ** @@ -351,7 +364,7 @@ void avdt_ccb_hdl_suspend_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** current command message, it sends a suspend response or ** suspend reject event to each SCB associated with the command. ** -** +** ** ** Returns void. ** @@ -388,7 +401,7 @@ void avdt_ccb_hdl_suspend_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** peer. It copies variables needed for the procedure from ** the event to the CCB. It marks the CCB as busy and then ** sends a discover command. -** +** ** ** Returns void. ** @@ -414,7 +427,7 @@ void avdt_ccb_snd_discover_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** Description This function is called to send a discover response to ** the peer. It takes the stream information passed in the ** event and sends a discover response. -** +** ** ** Returns void. ** @@ -433,7 +446,7 @@ void avdt_ccb_snd_discover_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** to the peer. It copies variables needed for the procedure ** from the event to the CCB. It marks the CCB as busy and ** then sends a get capabilities command. -** +** ** ** Returns void. ** @@ -463,7 +476,7 @@ void avdt_ccb_snd_getcap_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** Description This function is called to send a get capabilities response ** to the peer. It takes the stream information passed in the ** event and sends a get capabilities response. -** +** ** ** Returns void. ** @@ -487,7 +500,7 @@ void avdt_ccb_snd_getcap_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** 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. ** @@ -533,7 +546,7 @@ void avdt_ccb_snd_start_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** 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. ** @@ -565,7 +578,7 @@ void avdt_ccb_snd_start_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** 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. ** @@ -611,14 +624,14 @@ void avdt_ccb_snd_suspend_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** 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; + tAVDT_SCB *p_scb; int i; /* send response message */ @@ -643,7 +656,7 @@ void avdt_ccb_snd_suspend_rsp(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** 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. ** @@ -686,9 +699,9 @@ void avdt_ccb_clear_cmds(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** 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 +** The currently pending command is freed and we fake a ** reject message back to ourselves. -** +** ** ** Returns void. ** @@ -705,7 +718,7 @@ void avdt_ccb_cmd_fail(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_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]; @@ -722,7 +735,7 @@ void avdt_ccb_cmd_fail(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) avdt_scb_event(p_scb, evt, (tAVDT_SCB_EVT *) &msg); } } - + GKI_freebuf(p_ccb->p_curr_cmd); p_ccb->p_curr_cmd = NULL; } @@ -734,7 +747,7 @@ void avdt_ccb_cmd_fail(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** ** Description This function is called when a response is received for a ** currently pending command. The command is freed. -** +** ** ** Returns void. ** @@ -754,7 +767,7 @@ void avdt_ccb_free_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** ** Description This function is called to set the congestion state for ** the CCB. -** +** ** ** Returns void. ** @@ -772,7 +785,7 @@ void avdt_ccb_cong_state(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** 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. ** @@ -805,7 +818,7 @@ void avdt_ccb_ret_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) 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); } @@ -817,7 +830,7 @@ void avdt_ccb_ret_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** ** Description This function is called the send the next command, ** if any, in the command queue. -** +** ** ** Returns void. ** @@ -848,8 +861,8 @@ void avdt_ccb_snd_cmd(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** ** Function avdt_ccb_snd_msg ** -** Description -** +** Description +** ** ** Returns void. ** @@ -878,7 +891,7 @@ void avdt_ccb_snd_msg(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) } } } - + /* do we have commands to send? send next command */ avdt_ccb_snd_cmd(p_ccb, NULL); } @@ -891,7 +904,7 @@ void avdt_ccb_snd_msg(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** 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. ** @@ -906,7 +919,7 @@ void avdt_ccb_set_reconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** Function avdt_ccb_clr_reconn ** ** Description This function is called to clear the reconn variable. -** +** ** ** Returns void. ** @@ -923,7 +936,7 @@ void avdt_ccb_clr_reconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** 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. ** @@ -957,7 +970,7 @@ void avdt_ccb_chk_reconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** ** Description This function stops the CCB timer if the idle timer is ** running. -** +** ** ** Returns void. ** @@ -975,7 +988,7 @@ void avdt_ccb_chk_timer(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** Function avdt_ccb_set_conn ** ** Description Set CCB variables associated with AVDT_ConnectReq(). -** +** ** ** Returns void. ** @@ -995,7 +1008,7 @@ void avdt_ccb_set_conn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** Function avdt_ccb_set_disconn ** ** Description Set CCB variables associated with AVDT_DisconnectReq(). -** +** ** ** Returns void. ** @@ -1016,7 +1029,7 @@ void avdt_ccb_set_disconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** Function avdt_ccb_do_disconn ** ** Description Do action associated with AVDT_DisconnectReq(). -** +** ** ** Returns void. ** @@ -1035,7 +1048,7 @@ void avdt_ccb_do_disconn(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** Function avdt_ccb_ll_closed ** ** Description Clear commands from and deallocate CCB. -** +** ** ** Returns void. ** @@ -1063,7 +1076,7 @@ void avdt_ccb_ll_closed(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) { avdt_ctrl.hdr.err_code = 0; (*p_cback)(0, bd_addr, AVDT_DISCONNECT_IND_EVT, &avdt_ctrl); - } + } } /******************************************************************************* @@ -1071,7 +1084,7 @@ void avdt_ccb_ll_closed(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) ** Function avdt_ccb_ll_opened ** ** Description Call callback on open. -** +** ** ** Returns void. ** @@ -1081,7 +1094,7 @@ 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; @@ -1091,5 +1104,5 @@ void avdt_ccb_ll_opened(tAVDT_CCB *p_ccb, tAVDT_CCB_EVT *p_data) 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); - } + } } |