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