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components/bt/host/bluedroid/bta/hf_client/bta_hf_client_rfc.c
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/******************************************************************************
*
* Copyright (c) 2014 The Android Open Source Project
* Copyright (C) 2004-2012 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 file contains the audio gateway functions controlling the RFCOMM
* connections.
*
******************************************************************************/
#include <string.h>
#include "common/bt_defs.h"
#include "bta/bta_api.h"
#include "bta_hf_client_int.h"
#include "stack/port_api.h"
#include "osi/allocator.h"
#if (BTA_HF_INCLUDED == TRUE)
/*******************************************************************************
**
** Function bta_hf_client_port_cback
**
** Description RFCOMM Port callback
**
**
** Returns void
**
*******************************************************************************/
static void bta_hf_client_port_cback(UINT32 code, UINT16 port_handle)
{
BT_HDR *p_buf;
UNUSED(code);
/* ignore port events for port handles other than connected handle */
if (port_handle != bta_hf_client_cb.scb.conn_handle) {
APPL_TRACE_DEBUG("bta_hf_client_port_cback ignoring handle:%d conn_handle = %d",
port_handle, bta_hf_client_cb.scb.conn_handle);
return;
}
if ((p_buf = (BT_HDR *) osi_malloc(sizeof(BT_HDR))) != NULL) {
p_buf->event = BTA_HF_CLIENT_RFC_DATA_EVT;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function bta_hf_client_mgmt_cback
**
** Description RFCOMM management callback
**
**
** Returns void
**
*******************************************************************************/
static void bta_hf_client_mgmt_cback(UINT32 code, UINT16 port_handle, void* data)
{
tBTA_HF_CLIENT_RFC *p_buf;
UINT16 event;
APPL_TRACE_DEBUG("bta_hf_client_mgmt_cback : code = %d, port_handle = %d, conn_handle = %d, serv_handle = %d",
code, port_handle, bta_hf_client_cb.scb.conn_handle, bta_hf_client_cb.scb.serv_handle);
/* ignore close event for port handles other than connected handle */
if ((code != PORT_SUCCESS) && (port_handle != bta_hf_client_cb.scb.conn_handle)) {
APPL_TRACE_DEBUG("bta_hf_client_mgmt_cback ignoring handle:%d", port_handle);
return;
}
if (code == PORT_SUCCESS) {
if ((bta_hf_client_cb.scb.conn_handle && (port_handle == bta_hf_client_cb.scb.conn_handle)) || /* outgoing connection */
(port_handle == bta_hf_client_cb.scb.serv_handle)) { /* incoming connection */
event = BTA_HF_CLIENT_RFC_OPEN_EVT;
} else {
APPL_TRACE_ERROR ("bta_hf_client_mgmt_cback: PORT_SUCCESS, ignoring handle = %d", port_handle);
return;
}
}
/* distinguish server close events */
else if (port_handle == bta_hf_client_cb.scb.conn_handle) {
event = BTA_HF_CLIENT_RFC_CLOSE_EVT;
} else {
event = BTA_HF_CLIENT_RFC_SRV_CLOSE_EVT;
}
if ((p_buf = (tBTA_HF_CLIENT_RFC *) osi_malloc(sizeof(tBTA_HF_CLIENT_RFC))) != NULL) {
p_buf->hdr.event = event;
p_buf->port_handle = port_handle;
bta_sys_sendmsg(p_buf);
}
}
/*******************************************************************************
**
** Function bta_hf_client_setup_port
**
** Description Setup RFCOMM port for use by HF Client.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_setup_port(UINT16 handle)
{
PORT_SetEventMask(handle, PORT_EV_RXCHAR);
PORT_SetEventCallback(handle, bta_hf_client_port_cback);
}
/*******************************************************************************
**
** Function bta_hf_client_start_server
**
** Description Setup RFCOMM server for use by HF Client.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_start_server(void)
{
int port_status;
if (bta_hf_client_cb.scb.serv_handle > 0) {
APPL_TRACE_DEBUG("%s already started, handle: %d", __FUNCTION__, bta_hf_client_cb.scb.serv_handle);
return;
}
BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_HF_HANDSFREE, bta_hf_client_cb.scb.serv_sec_mask,
BT_PSM_RFCOMM, BTM_SEC_PROTO_RFCOMM, bta_hf_client_cb.scn);
port_status = RFCOMM_CreateConnection(UUID_SERVCLASS_HF_HANDSFREE, bta_hf_client_cb.scn,
TRUE, BTA_HF_CLIENT_MTU, (UINT8 *) bd_addr_any, &(bta_hf_client_cb.scb.serv_handle),
bta_hf_client_mgmt_cback);
if (port_status == PORT_SUCCESS) {
bta_hf_client_setup_port(bta_hf_client_cb.scb.serv_handle);
} else {
/* TODO: can we handle this better? */
APPL_TRACE_DEBUG("bta_hf_client_start_server: RFCOMM_CreateConnection returned error:%d", port_status);
}
APPL_TRACE_DEBUG("bta_hf_client_start_server handle: %d", bta_hf_client_cb.scb.serv_handle);
}
/*******************************************************************************
**
** Function bta_hf_client_close_server
**
** Description Close RFCOMM server port for use by HF Client.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_close_server(void)
{
APPL_TRACE_DEBUG("%s %d", __FUNCTION__, bta_hf_client_cb.scb.serv_handle);
if (bta_hf_client_cb.scb.serv_handle == 0) {
APPL_TRACE_DEBUG("%s already stopped", __FUNCTION__);
return;
}
RFCOMM_RemoveServer(bta_hf_client_cb.scb.serv_handle);
bta_hf_client_cb.scb.serv_handle = 0;
}
/*******************************************************************************
**
** Function bta_hf_client_rfc_do_open
**
** Description Open an RFCOMM connection to the peer device.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_rfc_do_open(tBTA_HF_CLIENT_DATA *p_data)
{
BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_HF_HANDSFREE,
bta_hf_client_cb.scb.cli_sec_mask, BT_PSM_RFCOMM,
BTM_SEC_PROTO_RFCOMM, bta_hf_client_cb.scb.peer_scn);
if (RFCOMM_CreateConnection(UUID_SERVCLASS_HF_HANDSFREE, bta_hf_client_cb.scb.peer_scn,
FALSE, BTA_HF_CLIENT_MTU, bta_hf_client_cb.scb.peer_addr, &(bta_hf_client_cb.scb.conn_handle),
bta_hf_client_mgmt_cback) == PORT_SUCCESS) {
bta_hf_client_setup_port(bta_hf_client_cb.scb.conn_handle);
APPL_TRACE_DEBUG("bta_hf_client_rfc_do_open : conn_handle = %d", bta_hf_client_cb.scb.conn_handle);
}
/* RFCOMM create connection failed; send ourselves RFCOMM close event */
else {
bta_hf_client_sm_execute(BTA_HF_CLIENT_RFC_CLOSE_EVT, p_data);
}
}
/*******************************************************************************
**
** Function bta_hf_client_rfc_do_close
**
** Description Close RFCOMM connection.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_rfc_do_close(tBTA_HF_CLIENT_DATA *p_data)
{
tBTA_HF_CLIENT_RFC *p_buf;
UNUSED(p_data);
if (bta_hf_client_cb.scb.conn_handle) {
RFCOMM_RemoveConnection(bta_hf_client_cb.scb.conn_handle);
} else {
/* Close API was called while HF Client is in Opening state. */
/* Need to trigger the state machine to send callback to the app */
/* and move back to INIT state. */
if ((p_buf = (tBTA_HF_CLIENT_RFC *) osi_malloc(sizeof(tBTA_HF_CLIENT_RFC))) != NULL) {
p_buf->hdr.event = BTA_HF_CLIENT_RFC_CLOSE_EVT;
bta_sys_sendmsg(p_buf);
}
/* Cancel SDP if it had been started. */
if (bta_hf_client_cb.scb.p_disc_db) {
(void)SDP_CancelServiceSearch (bta_hf_client_cb.scb.p_disc_db);
bta_hf_client_free_db(NULL);
}
}
}
#endif /* #if (BTA_HF_INCLUDED == TRUE) */
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