2019-10-09 09:24:30 +00:00
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/******************************************************************************
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*
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* Copyright (C) 2004-2012 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 file contains the audio gateway functions controlling the RFCOMM
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* connections.
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*
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******************************************************************************/
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#include <string.h>
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#include "bta_ag_int.h"
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#include "bta/bta_api.h"
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#include "bta/bta_sys.h"
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#include "bta/bta_ag_api.h"
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#include "bta/bta_ag_co.h"
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#include "bta/utl.h"
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#include "stack/btm_api.h"
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#include "stack/port_api.h"
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#include "stack/rfcdefs.h"
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#include "common/bt_trace.h"
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#include "osi/allocator.h"
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#if (BTA_AG_INCLUDED == TRUE)
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/* Event mask for RfCOMM port callback */
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#define BTA_AG_PORT_EV_MASK PORT_EV_RXCHAR
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/* each scb has its own rfcomm callbacks */
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void bta_ag_port_cback_1(UINT32 code, UINT16 port_handle);
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void bta_ag_port_cback_2(UINT32 code, UINT16 port_handle);
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void bta_ag_port_cback_3(UINT32 code, UINT16 port_handle);
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void bta_ag_mgmt_cback_1(UINT32 code, UINT16 port_handle);
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void bta_ag_mgmt_cback_2(UINT32 code, UINT16 port_handle);
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void bta_ag_mgmt_cback_3(UINT32 code, UINT16 port_handle);
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int bta_ag_data_cback_1(UINT16 port_handle, void *p_data, UINT16 len);
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int bta_ag_data_cback_2(UINT16 port_handle, void *p_data, UINT16 len);
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int bta_ag_data_cback_3(UINT16 port_handle, void *p_data, UINT16 len);
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/* rfcomm callback function tables */
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typedef tPORT_CALLBACK *tBTA_AG_PORT_CBACK;
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const tBTA_AG_PORT_CBACK bta_ag_port_cback_tbl[] =
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{
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bta_ag_port_cback_1,
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bta_ag_port_cback_2,
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bta_ag_port_cback_3
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};
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const tBTA_AG_PORT_CBACK bta_ag_mgmt_cback_tbl[] =
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{
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bta_ag_mgmt_cback_1,
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bta_ag_mgmt_cback_2,
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bta_ag_mgmt_cback_3
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};
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typedef tPORT_DATA_CALLBACK *tBTA_AG_DATA_CBACK;
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const tBTA_AG_DATA_CBACK bta_ag_data_cback_tbl[] =
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{
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bta_ag_data_cback_1,
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bta_ag_data_cback_2,
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bta_ag_data_cback_3
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};
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/*******************************************************************************
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**
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** Function bta_ag_port_cback
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**
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** Description RFCOMM Port callback
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**
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**
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** Returns void
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**
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*******************************************************************************/
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static void bta_ag_port_cback(UINT32 code, UINT16 port_handle, UINT16 handle)
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{
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BT_HDR *p_buf;
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tBTA_AG_SCB *p_scb;
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UNUSED(code);
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if ((p_scb = bta_ag_scb_by_idx(handle)) != NULL) {
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/* ignore port events for port handles other than connected handle */
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if (port_handle != p_scb->conn_handle) {
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APPL_TRACE_DEBUG("ag_port_cback ignoring handle:%d conn_handle = %d other handle = %d",
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port_handle, p_scb->conn_handle, handle);
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return;
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}
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if ((p_buf = (BT_HDR *) osi_malloc(sizeof(BT_HDR))) != NULL) {
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p_buf->event = BTA_AG_RFC_DATA_EVT;
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p_buf->layer_specific = handle;
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bta_sys_sendmsg(p_buf);
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}
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}
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}
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/*******************************************************************************
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**
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** Function bta_ag_mgmt_cback
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**
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** Description RFCOMM management callback
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**
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**
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** Returns void
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**
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*******************************************************************************/
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static void bta_ag_mgmt_cback(UINT32 code, UINT16 port_handle, UINT16 handle)
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{
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tBTA_AG_RFC *p_buf;
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tBTA_AG_SCB *p_scb;
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UINT16 event;
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UINT8 i;
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BOOLEAN found_handle = FALSE;
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APPL_TRACE_DEBUG("ag_mgmt_cback : code = %d, port_handle = %d, handle = %d",
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code, port_handle, handle);
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if ((p_scb = bta_ag_scb_by_idx(handle)) != NULL) {
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/* ignore close event for port handles other than connected handle */
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if ((code != PORT_SUCCESS) && (port_handle != p_scb->conn_handle)) {
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APPL_TRACE_DEBUG("ag_mgmt_cback ignoring handle:%d", port_handle);
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return;
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}
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if (code == PORT_SUCCESS) {
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if (p_scb->conn_handle) {
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/* Outgoing connection */
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if (port_handle == p_scb->conn_handle)
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found_handle = TRUE;
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} else {
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/* Incoming connection */
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for (i = 0; i < BTA_AG_NUM_IDX; i++) {
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if (port_handle == p_scb->serv_handle[i])
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found_handle = TRUE;
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}
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}
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if (!found_handle) {
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APPL_TRACE_ERROR ("bta_ag_mgmt_cback: PORT_SUCCESS, ignoring handle = %d", port_handle);
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return;
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}
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event = BTA_AG_RFC_OPEN_EVT;
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} else if (port_handle == p_scb->conn_handle) {
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/* distinguish server close events */
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event = BTA_AG_RFC_CLOSE_EVT;
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} else {
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event = BTA_AG_RFC_SRV_CLOSE_EVT;
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}
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if ((p_buf = (tBTA_AG_RFC *) osi_malloc(sizeof(tBTA_AG_RFC))) != NULL) {
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p_buf->hdr.event = event;
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p_buf->hdr.layer_specific = handle;
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p_buf->port_handle = port_handle;
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bta_sys_sendmsg(p_buf);
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}
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}
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}
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/*******************************************************************************
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**
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** Function bta_ag_data_cback
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**
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** Description RFCOMM data callback
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**
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**
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** Returns void
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**
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*******************************************************************************/
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static int bta_ag_data_cback(UINT16 port_handle, void *p_data, UINT16 len, UINT16 handle)
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{
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UNUSED(port_handle);
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/* call data call-out directly */
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2019-10-25 07:53:16 +00:00
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#if (BTM_SCO_HCI_INCLUDED == TRUE)
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2019-10-09 09:24:30 +00:00
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bta_ag_co_tx_write(handle, (UINT8 *) p_data, len);
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2019-10-25 07:53:16 +00:00
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#endif
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2019-10-09 09:24:30 +00:00
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return 0;
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}
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/*******************************************************************************
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**
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** Function bta_ag_port_cback_1 to 3
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** bta_ag_mgmt_cback_1 to 3
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**
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** Description RFCOMM callback functions. This is an easy way to
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** distinguish scb from the callback.
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**
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**
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** Returns void
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**
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*******************************************************************************/
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void bta_ag_mgmt_cback_1(UINT32 code, UINT16 handle) {bta_ag_mgmt_cback(code, handle, 1);}
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void bta_ag_mgmt_cback_2(UINT32 code, UINT16 handle) {bta_ag_mgmt_cback(code, handle, 2);}
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void bta_ag_mgmt_cback_3(UINT32 code, UINT16 handle) {bta_ag_mgmt_cback(code, handle, 3);}
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void bta_ag_port_cback_1(UINT32 code, UINT16 handle) {bta_ag_port_cback(code, handle, 1);}
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void bta_ag_port_cback_2(UINT32 code, UINT16 handle) {bta_ag_port_cback(code, handle, 2);}
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void bta_ag_port_cback_3(UINT32 code, UINT16 handle) {bta_ag_port_cback(code, handle, 3);}
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/*******************************************************************************
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**
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** Function bta_ag_data_cback_1 to 3
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**
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** Description RFCOMM data callback functions. This is an easy way to
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** distinguish scb from the callback.
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**
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**
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** Returns void
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**
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*******************************************************************************/
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int bta_ag_data_cback_1(UINT16 port_handle, void *p_data, UINT16 len)
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{
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return bta_ag_data_cback(port_handle, p_data, len, 1);
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}
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int bta_ag_data_cback_2(UINT16 port_handle, void *p_data, UINT16 len)
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{
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return bta_ag_data_cback(port_handle, p_data, len, 2);
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}
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int bta_ag_data_cback_3(UINT16 port_handle, void *p_data, UINT16 len)
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{
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return bta_ag_data_cback(port_handle, p_data, len, 3);
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}
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/*******************************************************************************
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**
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** Function bta_ag_setup_port
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**
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** Description Setup RFCOMM port for use by AG.
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**
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**
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** Returns void
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**
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*******************************************************************************/
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void bta_ag_setup_port(tBTA_AG_SCB *p_scb, UINT16 handle)
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{
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UINT16 i = bta_ag_scb_to_idx(p_scb) - 1;
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/* set up data callback if using pass through mode */
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if (bta_ag_cb.parse_mode == BTA_AG_PASS_THROUGH) {
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PORT_SetDataCallback(handle, bta_ag_data_cback_tbl[i]);
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}
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PORT_SetEventMask(handle, BTA_AG_PORT_EV_MASK);
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PORT_SetEventCallback(handle, bta_ag_port_cback_tbl[i]);
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}
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/*******************************************************************************
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**
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** Function bta_ag_start_servers
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**
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** Description Setup RFCOMM servers for use by AG.
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**
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**
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** Returns void
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**
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*******************************************************************************/
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void bta_ag_start_servers(tBTA_AG_SCB *p_scb, tBTA_SERVICE_MASK services)
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{
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int bta_ag_port_status;
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services >>= BTA_HSP_SERVICE_ID;
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for (int i = 0; i < BTA_AG_NUM_IDX && services != 0; i++, services >>= 1) {
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/* if service is set in mask */
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if (services & 1) {
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BTM_SetSecurityLevel(FALSE, "", bta_ag_sec_id[i], p_scb->serv_sec_mask,
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BT_PSM_RFCOMM, BTM_SEC_PROTO_RFCOMM, bta_ag_cb.profile[i].scn);
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bta_ag_port_status = RFCOMM_CreateConnection(bta_ag_uuid[i], bta_ag_cb.profile[i].scn,
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TRUE, BTA_AG_MTU, (UINT8 *) bd_addr_any, &(p_scb->serv_handle[i]),
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bta_ag_mgmt_cback_tbl[bta_ag_scb_to_idx(p_scb) - 1]);
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if( bta_ag_port_status == PORT_SUCCESS ) {
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bta_ag_setup_port(p_scb, p_scb->serv_handle[i]);
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} else {
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/* TODO: CR#137125 to handle to error properly */
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APPL_TRACE_DEBUG("bta_ag_start_servers: RFCOMM_CreateConnection returned error:%d", bta_ag_port_status);
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}
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}
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}
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}
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/*******************************************************************************
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**
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** Function bta_ag_close_servers
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**
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** Description Close RFCOMM servers port for use by AG.
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**
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**
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** Returns void
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**
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*******************************************************************************/
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void bta_ag_close_servers(tBTA_AG_SCB *p_scb, tBTA_SERVICE_MASK services)
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{
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int i;
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services >>= BTA_HSP_SERVICE_ID;
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for (i = 0; i < BTA_AG_NUM_IDX && services != 0; i++, services >>= 1) {
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/* if service is set in mask */
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if (services & 1) {
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RFCOMM_RemoveServer(p_scb->serv_handle[i]);
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p_scb->serv_handle[i] = 0;
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}
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}
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}
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/*******************************************************************************
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**
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** Function bta_ag_is_server_closed
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**
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** Description Returns TRUE if all servers are closed.
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**
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**
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** Returns TRUE if all servers are closed, FALSE otherwise
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**
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*******************************************************************************/
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BOOLEAN bta_ag_is_server_closed (tBTA_AG_SCB *p_scb)
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{
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UINT8 i;
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BOOLEAN is_closed = TRUE;
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for (i = 0; i < BTA_AG_NUM_IDX; i++) {
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if (p_scb->serv_handle[i] != 0)
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is_closed = FALSE;
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}
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return is_closed;
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}
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/*******************************************************************************
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**
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** Function bta_ag_rfc_do_open
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**
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** Description Open an RFCOMM connection to the peer device.
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**
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**
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** Returns void
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**
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*******************************************************************************/
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void bta_ag_rfc_do_open(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
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{
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BTM_SetSecurityLevel(TRUE, "", bta_ag_sec_id[p_scb->conn_service],
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p_scb->cli_sec_mask, BT_PSM_RFCOMM, BTM_SEC_PROTO_RFCOMM, p_scb->peer_scn);
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if (RFCOMM_CreateConnection(bta_ag_uuid[p_scb->conn_service], p_scb->peer_scn,
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FALSE, BTA_AG_MTU, p_scb->peer_addr, &(p_scb->conn_handle),
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bta_ag_mgmt_cback_tbl[bta_ag_scb_to_idx(p_scb) - 1]) == PORT_SUCCESS) {
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bta_ag_setup_port(p_scb, p_scb->conn_handle);
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APPL_TRACE_DEBUG("bta_ag_rfc_do_open : conn_handle = %d", p_scb->conn_handle);
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} else {
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/* RFCOMM create connection failed; send ourselves RFCOMM close event */
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bta_ag_sm_execute(p_scb, BTA_AG_RFC_CLOSE_EVT, p_data);
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}
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}
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/*******************************************************************************
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**
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** Function bta_ag_rfc_do_close
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**
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** Description Close RFCOMM connection.
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**
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**
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** Returns void
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**
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*******************************************************************************/
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void bta_ag_rfc_do_close(tBTA_AG_SCB *p_scb, tBTA_AG_DATA *p_data)
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{
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tBTA_AG_RFC *p_buf;
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UNUSED(p_data);
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if (p_scb->conn_handle) {
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RFCOMM_RemoveConnection(p_scb->conn_handle);
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} else {
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/* Close API was called while AG is in Opening state. */
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/* Need to trigger the state machine to send callback to the app */
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/* and move back to INIT state. */
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if ((p_buf = (tBTA_AG_RFC *) osi_malloc(sizeof(tBTA_AG_RFC))) != NULL) {
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p_buf->hdr.event = BTA_AG_RFC_CLOSE_EVT;
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p_buf->hdr.layer_specific = bta_ag_scb_to_idx(p_scb);
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bta_sys_sendmsg(p_buf);
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}
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/* Cancel SDP if it had been started. */
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/*
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if(p_scb->p_disc_db)
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{
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(void)SDP_CancelServiceSearch (p_scb->p_disc_db);
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}
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*/
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}
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}
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#endif /* #if (BTA_AG_INCLUDED == TRUE) */
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