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378 lines
14 KiB
378 lines
14 KiB
/******************************************************************************
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*
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* Copyright 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 <base/bind.h>
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#include <cstring>
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#include "bta/ag/bta_ag_int.h"
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#include "osi/include/osi.h"
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#include "stack/include/btu.h" // do_in_main_thread
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#include "stack/include/port_api.h"
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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_t code, uint16_t port_handle);
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void bta_ag_port_cback_2(uint32_t code, uint16_t port_handle);
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void bta_ag_port_cback_3(uint32_t code, uint16_t port_handle);
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void bta_ag_port_cback_4(uint32_t code, uint16_t port_handle);
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void bta_ag_port_cback_5(uint32_t code, uint16_t port_handle);
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void bta_ag_port_cback_6(uint32_t code, uint16_t port_handle);
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void bta_ag_mgmt_cback_1(uint32_t code, uint16_t port_handle);
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void bta_ag_mgmt_cback_2(uint32_t code, uint16_t port_handle);
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void bta_ag_mgmt_cback_3(uint32_t code, uint16_t port_handle);
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void bta_ag_mgmt_cback_4(uint32_t code, uint16_t port_handle);
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void bta_ag_mgmt_cback_5(uint32_t code, uint16_t port_handle);
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void bta_ag_mgmt_cback_6(uint32_t code, uint16_t port_handle);
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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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bta_ag_port_cback_1, bta_ag_port_cback_2, bta_ag_port_cback_3,
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bta_ag_port_cback_4, bta_ag_port_cback_5, bta_ag_port_cback_6};
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const tBTA_AG_PORT_CBACK bta_ag_mgmt_cback_tbl[] = {
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bta_ag_mgmt_cback_1, bta_ag_mgmt_cback_2, bta_ag_mgmt_cback_3,
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bta_ag_mgmt_cback_4, bta_ag_mgmt_cback_5, bta_ag_mgmt_cback_6};
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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(UNUSED_ATTR uint32_t code, uint16_t port_handle,
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uint16_t handle) {
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tBTA_AG_SCB* p_scb = bta_ag_scb_by_idx(handle);
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if (p_scb != nullptr) {
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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_ERROR(
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"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 (!bta_ag_scb_open(p_scb)) {
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LOG(ERROR) << __func__ << ": rfcomm data on an unopened control block "
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<< handle << " peer_addr " << p_scb->peer_addr << " state "
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<< std::to_string(p_scb->state);
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}
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do_in_main_thread(FROM_HERE,
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base::Bind(&bta_ag_sm_execute_by_handle, handle,
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BTA_AG_RFC_DATA_EVT, tBTA_AG_DATA::kEmpty));
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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_t code, uint16_t port_handle,
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uint16_t handle) {
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tBTA_AG_SCB* p_scb = bta_ag_scb_by_idx(handle);
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APPL_TRACE_DEBUG("%s: code=%d, port_handle=%d, scb_handle=%d, p_scb=0x%08x",
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__func__, code, port_handle, handle, p_scb);
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if (p_scb == nullptr) {
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LOG(WARNING) << __func__ << ": cannot find scb, code=" << code
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<< ", port_handle=" << port_handle << ", handle=" << handle;
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return;
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}
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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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LOG(WARNING) << __func__ << ": ignore open failure for unmatched "
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<< "port_handle " << port_handle << ", scb_handle=" << handle;
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return;
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}
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uint16_t event;
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if (code == PORT_SUCCESS) {
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bool found_handle = false;
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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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}
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} else {
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/* Incoming connection */
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for (uint16_t service_port_handle : p_scb->serv_handle) {
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if (port_handle == service_port_handle) {
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found_handle = true;
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break;
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}
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}
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}
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if (!found_handle) {
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LOG(ERROR) << __func__ << ": port opened successfully, but port_handle "
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<< port_handle << " is unknown"
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<< ", scb_handle=" << 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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tBTA_AG_DATA data = {};
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data.rfc.port_handle = port_handle;
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do_in_main_thread(
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FROM_HERE, base::Bind(&bta_ag_sm_execute_by_handle, handle, event, data));
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}
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/*******************************************************************************
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*
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* Function bta_ag_port_cback_1 to 6
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* bta_ag_mgmt_cback_1 to 6
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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_t code, uint16_t port_handle) {
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bta_ag_mgmt_cback(code, port_handle, 1);
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}
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void bta_ag_mgmt_cback_2(uint32_t code, uint16_t port_handle) {
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bta_ag_mgmt_cback(code, port_handle, 2);
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}
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void bta_ag_mgmt_cback_3(uint32_t code, uint16_t port_handle) {
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bta_ag_mgmt_cback(code, port_handle, 3);
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}
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void bta_ag_mgmt_cback_4(uint32_t code, uint16_t port_handle) {
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bta_ag_mgmt_cback(code, port_handle, 4);
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}
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void bta_ag_mgmt_cback_5(uint32_t code, uint16_t port_handle) {
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bta_ag_mgmt_cback(code, port_handle, 5);
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}
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void bta_ag_mgmt_cback_6(uint32_t code, uint16_t port_handle) {
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bta_ag_mgmt_cback(code, port_handle, 6);
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}
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void bta_ag_port_cback_1(uint32_t code, uint16_t port_handle) {
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bta_ag_port_cback(code, port_handle, 1);
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}
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void bta_ag_port_cback_2(uint32_t code, uint16_t port_handle) {
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bta_ag_port_cback(code, port_handle, 2);
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}
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void bta_ag_port_cback_3(uint32_t code, uint16_t port_handle) {
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bta_ag_port_cback(code, port_handle, 3);
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}
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void bta_ag_port_cback_4(uint32_t code, uint16_t port_handle) {
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bta_ag_port_cback(code, port_handle, 4);
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}
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void bta_ag_port_cback_5(uint32_t code, uint16_t port_handle) {
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bta_ag_port_cback(code, port_handle, 5);
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}
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void bta_ag_port_cback_6(uint32_t code, uint16_t port_handle) {
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bta_ag_port_cback(code, port_handle, 6);
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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_t handle) {
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int port_callback_index = bta_ag_scb_to_idx(p_scb) - 1;
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CHECK_GE(port_callback_index, 0)
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<< "invalid callback index, handle=" << handle << ", bd_addr"
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<< p_scb->peer_addr;
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CHECK_LT(port_callback_index,
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static_cast<int>(sizeof(bta_ag_port_cback_tbl) /
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sizeof(bta_ag_port_cback_tbl[0])))
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<< "callback index out of bound, handle=" << handle << ", bd_addr"
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<< p_scb->peer_addr;
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PORT_SetEventMask(handle, BTA_AG_PORT_EV_MASK);
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PORT_SetEventCallback(handle, bta_ag_port_cback_tbl[port_callback_index]);
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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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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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int management_callback_index = bta_ag_scb_to_idx(p_scb) - 1;
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CHECK_GE(management_callback_index, 0)
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<< "invalid callback index, services=" << loghex(services)
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<< ", bd_addr=" << p_scb->peer_addr;
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CHECK_LT(management_callback_index,
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static_cast<int>(sizeof(bta_ag_mgmt_cback_tbl) /
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sizeof(bta_ag_mgmt_cback_tbl[0])))
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<< "callback index out of bound, services=" << loghex(services)
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<< ", bd_addr" << p_scb->peer_addr;
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int status = RFCOMM_CreateConnectionWithSecurity(
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bta_ag_uuid[i], bta_ag_cb.profile[i].scn, true, BTA_AG_MTU,
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RawAddress::kAny, &(p_scb->serv_handle[i]),
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bta_ag_mgmt_cback_tbl[management_callback_index],
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BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT);
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if (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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LOG(ERROR) << __func__ << ": RFCOMM_CreateConnectionWithSecurity ERROR "
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<< status << ", p_scb=" << p_scb
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<< ", services=" << loghex(services)
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<< ", mgmt_cback_index=" << management_callback_index;
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}
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APPL_TRACE_DEBUG("%s: p_scb=0x%08x, services=0x%04x, mgmt_cback_index=%d",
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__func__, p_scb, services, management_callback_index);
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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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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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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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bool bta_ag_is_server_closed(tBTA_AG_SCB* p_scb) {
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uint8_t xx;
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bool is_closed = true;
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for (xx = 0; xx < BTA_AG_NUM_IDX; xx++) {
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if (p_scb->serv_handle[xx] != 0) 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, const tBTA_AG_DATA& data) {
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int management_callback_index = bta_ag_scb_to_idx(p_scb) - 1;
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int status = RFCOMM_CreateConnectionWithSecurity(
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bta_ag_uuid[p_scb->conn_service], p_scb->peer_scn, false, BTA_AG_MTU,
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p_scb->peer_addr, &(p_scb->conn_handle),
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bta_ag_mgmt_cback_tbl[management_callback_index],
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BTA_SEC_AUTHENTICATE | BTA_SEC_ENCRYPT);
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APPL_TRACE_DEBUG(
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"%s: p_scb=0x%08x, conn_handle=%d, mgmt_cback_index=%d,"
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" status=%d",
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__func__, p_scb, p_scb->conn_handle, management_callback_index, status);
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if (status == PORT_SUCCESS) {
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bta_ag_setup_port(p_scb, 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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LOG(ERROR) << __func__ << ": RFCOMM_CreateConnection ERROR " << status
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<< " for " << p_scb->peer_addr;
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bta_ag_sm_execute(p_scb, BTA_AG_RFC_CLOSE_EVT, 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,
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UNUSED_ATTR const tBTA_AG_DATA& 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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do_in_main_thread(
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FROM_HERE,
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base::Bind(&bta_ag_sm_execute_by_handle, bta_ag_scb_to_idx(p_scb),
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BTA_AG_RFC_CLOSE_EVT, tBTA_AG_DATA::kEmpty));
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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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