/******************************************************************************
*
* Copyright (c) 2014 The Android Open Source Project
* Copyright (C) 2003-2012 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 action functions for the handsfree client.
*
******************************************************************************/
#include "bta_api.h"
#include "bta_hf_client_api.h"
#include "bta_hf_client_int.h"
#include "bta_dm_int.h"
#include "l2c_api.h"
#include "port_api.h"
#include "bta_sys.h"
#include "utl.h"
#include "bt_utils.h"
#include "osi/include/compat.h"
#include <string.h>
/*****************************************************************************
** Constants
*****************************************************************************/
/* maximum length of data to read from RFCOMM */
#define BTA_HF_CLIENT_RFC_READ_MAX 512
/*******************************************************************************
**
** Function bta_hf_client_register
**
** Description This function initializes values of the scb and sets up
** the SDP record for the services.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_register(tBTA_HF_CLIENT_DATA *p_data)
{
tBTA_HF_CLIENT evt;
tBTA_UTL_COD cod;
memset(&evt, 0, sizeof(evt));
/* initialize control block */
bta_hf_client_scb_init();
bta_hf_client_cb.scb.serv_sec_mask = p_data->api_register.sec_mask;
bta_hf_client_cb.scb.features = p_data->api_register.features;
/* initialize AT control block */
bta_hf_client_at_init();
/* create SDP records */
bta_hf_client_create_record(p_data);
/* Set the Audio service class bit */
cod.service = BTM_COD_SERVICE_AUDIO;
utl_set_device_class(&cod, BTA_UTL_SET_COD_SERVICE_CLASS);
/* start RFCOMM server */
bta_hf_client_start_server();
/* call app callback with register event */
evt.reg.status = BTA_HF_CLIENT_SUCCESS;
(*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_REGISTER_EVT, &evt);
}
/*******************************************************************************
**
** Function bta_hf_client_deregister
**
** Description This function removes the sdp records, closes the RFCOMM
** servers, and deallocates the service control block.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_deregister(tBTA_HF_CLIENT_DATA *p_data)
{
bta_hf_client_cb.scb.deregister = TRUE;
/* remove sdp record */
bta_hf_client_del_record(p_data);
/* remove rfcomm server */
bta_hf_client_close_server();
/* disable */
bta_hf_client_scb_disable();
}
/*******************************************************************************
**
** Function bta_hf_client_start_dereg
**
** Description Start a deregister event.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_start_dereg(tBTA_HF_CLIENT_DATA *p_data)
{
bta_hf_client_cb.scb.deregister = TRUE;
/* remove sdp record */
bta_hf_client_del_record(p_data);
}
/*******************************************************************************
**
** Function bta_hf_client_start_close
**
** Description Start the process of closing SCO and RFCOMM connection.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_start_close(tBTA_HF_CLIENT_DATA *p_data)
{
/* Take the link out of sniff and set L2C idle time to 0 */
bta_dm_pm_active(bta_hf_client_cb.scb.peer_addr);
L2CA_SetIdleTimeoutByBdAddr(bta_hf_client_cb.scb.peer_addr, 0, BT_TRANSPORT_BR_EDR);
/* if SCO is open close SCO and wait on RFCOMM close */
if (bta_hf_client_cb.scb.sco_state == BTA_HF_CLIENT_SCO_OPEN_ST)
{
bta_hf_client_cb.scb.sco_close_rfc = TRUE;
}
else
{
bta_hf_client_rfc_do_close(p_data);
}
/* always do SCO shutdown to handle all SCO corner cases */
bta_hf_client_sco_shutdown(NULL);
}
/*******************************************************************************
**
** Function bta_hf_client_start_open
**
** Description This starts an HF Client open.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_start_open(tBTA_HF_CLIENT_DATA *p_data)
{
BD_ADDR pending_bd_addr;
/* store parameters */
if (p_data)
{
bdcpy(bta_hf_client_cb.scb.peer_addr, p_data->api_open.bd_addr);
bta_hf_client_cb.scb.cli_sec_mask = p_data->api_open.sec_mask;
}
/* Check if RFCOMM has any incoming connection to avoid collision. */
if (PORT_IsOpening (pending_bd_addr))
{
/* Let the incoming connection goes through. */
/* Issue collision for now. */
/* We will decide what to do when we find incoming connection later.*/
bta_hf_client_collision_cback (0, BTA_ID_HS, 0, bta_hf_client_cb.scb.peer_addr);
return;
}
/* close server */
bta_hf_client_close_server();
/* set role */
bta_hf_client_cb.scb.role = BTA_HF_CLIENT_INT;
/* do service search */
bta_hf_client_do_disc();
}
/*******************************************************************************
**
** Function bta_hf_client_cback_open
**
** Description Send open callback event to application.
**
**
** Returns void
**
*******************************************************************************/
static void bta_hf_client_cback_open(tBTA_HF_CLIENT_DATA *p_data, tBTA_HF_CLIENT_STATUS status)
{
tBTA_HF_CLIENT evt;
memset(&evt, 0, sizeof(evt));
/* call app callback with open event */
evt.open.status = status;
if(p_data)
{
/* if p_data is provided then we need to pick the bd address from the open api structure */
bdcpy(evt.open.bd_addr, p_data->api_open.bd_addr);
}
else
{
bdcpy(evt.open.bd_addr, bta_hf_client_cb.scb.peer_addr);
}
(*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_OPEN_EVT, &evt);
}
/*******************************************************************************
**
** Function bta_hf_client_rfc_open
**
** Description Handle RFCOMM channel open.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_rfc_open(tBTA_HF_CLIENT_DATA *p_data)
{
UNUSED(p_data);
bta_sys_conn_open(BTA_ID_HS, 1, bta_hf_client_cb.scb.peer_addr);
bta_hf_client_cback_open(NULL, BTA_HF_CLIENT_SUCCESS);
/* start SLC procedure */
bta_hf_client_slc_seq(FALSE);
}
/*******************************************************************************
**
** Function bta_hf_client_rfc_acp_open
**
** Description Handle RFCOMM channel open when accepting connection.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_rfc_acp_open(tBTA_HF_CLIENT_DATA *p_data)
{
UINT16 lcid;
BD_ADDR dev_addr;
int status;
/* set role */
bta_hf_client_cb.scb.role = BTA_HF_CLIENT_ACP;
APPL_TRACE_DEBUG ("bta_hf_client_rfc_acp_open: serv_handle = %d rfc.port_handle = %d",
bta_hf_client_cb.scb.serv_handle, p_data->rfc.port_handle);
/* get bd addr of peer */
if (PORT_SUCCESS != (status=PORT_CheckConnection(p_data->rfc.port_handle, dev_addr, &lcid)))
{
APPL_TRACE_DEBUG ("bta_hf_client_rfc_acp_open error PORT_CheckConnection returned status %d", status);
}
/* Collision Handling */
if (alarm_is_scheduled(bta_hf_client_cb.scb.collision_timer)) {
alarm_cancel(bta_hf_client_cb.scb.collision_timer);
if (bdcmp (dev_addr, bta_hf_client_cb.scb.peer_addr) == 0)
{
/* If incoming and outgoing device are same, nothing more to do. */
/* Outgoing conn will be aborted because we have successful incoming conn. */
}
else
{
/* Resume outgoing connection. */
bta_hf_client_resume_open ();
}
}
bdcpy (bta_hf_client_cb.scb.peer_addr, dev_addr);
bta_hf_client_cb.scb.conn_handle = p_data->rfc.port_handle;
/* do service discovery to get features */
bta_hf_client_do_disc();
/* continue with open processing */
bta_hf_client_rfc_open(p_data);
}
/*******************************************************************************
**
** Function bta_hf_client_rfc_fail
**
** Description RFCOMM connection failed.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_rfc_fail(tBTA_HF_CLIENT_DATA *p_data)
{
UNUSED(p_data);
/* reinitialize stuff */
bta_hf_client_cb.scb.conn_handle = 0;
bta_hf_client_cb.scb.peer_features = 0;
bta_hf_client_cb.scb.chld_features = 0;
bta_hf_client_cb.scb.role = BTA_HF_CLIENT_ACP;
bta_hf_client_cb.scb.svc_conn = FALSE;
bta_hf_client_cb.scb.send_at_reply = FALSE;
bta_hf_client_cb.scb.negotiated_codec = BTM_SCO_CODEC_CVSD;
bta_hf_client_at_reset();
/* reopen server */
bta_hf_client_start_server();
/* call open cback w. failure */
bta_hf_client_cback_open(NULL, BTA_HF_CLIENT_FAIL_RFCOMM);
}
/*******************************************************************************
**
** Function bta_hf_client_disc_fail
**
** Description This function handles a discovery failure.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_disc_fail(tBTA_HF_CLIENT_DATA *p_data)
{
UNUSED(p_data);
/* reopen server */
bta_hf_client_start_server();
/* reinitialize stuff */
/* call open cback w. failure */
bta_hf_client_cback_open(NULL, BTA_HF_CLIENT_FAIL_SDP);
}
/*******************************************************************************
**
** Function bta_hf_client_open_fail
**
** Description open connection failed.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_open_fail(tBTA_HF_CLIENT_DATA *p_data)
{
/* call open cback w. failure */
bta_hf_client_cback_open(p_data, BTA_HF_CLIENT_FAIL_RESOURCES);
}
/*******************************************************************************
**
** Function bta_hf_client_rfc_close
**
** Description RFCOMM connection closed.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_rfc_close(tBTA_HF_CLIENT_DATA *p_data)
{
UNUSED(p_data);
/* reinitialize stuff */
bta_hf_client_cb.scb.peer_features = 0;
bta_hf_client_cb.scb.chld_features = 0;
bta_hf_client_cb.scb.role = BTA_HF_CLIENT_ACP;
bta_hf_client_cb.scb.svc_conn = FALSE;
bta_hf_client_cb.scb.send_at_reply = FALSE;
bta_hf_client_cb.scb.negotiated_codec = BTM_SCO_CODEC_CVSD;
bta_hf_client_at_reset();
bta_sys_conn_close(BTA_ID_HS, 1, bta_hf_client_cb.scb.peer_addr);
/* call close cback */
(*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_CLOSE_EVT, NULL);
/* if not deregistering reopen server */
if (bta_hf_client_cb.scb.deregister == FALSE)
{
/* Clear peer bd_addr so instance can be reused */
bdcpy(bta_hf_client_cb.scb.peer_addr, bd_addr_null);
/* start server as it might got closed on open*/
bta_hf_client_start_server();
bta_hf_client_cb.scb.conn_handle = 0;
/* Make sure SCO is shutdown */
bta_hf_client_sco_shutdown(NULL);
bta_sys_sco_unuse(BTA_ID_HS, 1, bta_hf_client_cb.scb.peer_addr);
}
/* else close port and deallocate scb */
else
{
bta_hf_client_close_server();
bta_hf_client_scb_disable();
}
}
/*******************************************************************************
**
** Function bta_hf_client_disc_int_res
**
** Description This function handles a discovery result when initiator.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_disc_int_res(tBTA_HF_CLIENT_DATA *p_data)
{
UINT16 event = BTA_HF_CLIENT_DISC_FAIL_EVT;
APPL_TRACE_DEBUG ("bta_hf_client_disc_int_res: Status: %d", p_data->disc_result.status);
/* if found service */
if (p_data->disc_result.status == SDP_SUCCESS ||
p_data->disc_result.status == SDP_DB_FULL)
{
/* get attributes */
if (bta_hf_client_sdp_find_attr())
{
event = BTA_HF_CLIENT_DISC_OK_EVT;
}
}
/* free discovery db */
bta_hf_client_free_db(p_data);
/* send ourselves sdp ok/fail event */
bta_hf_client_sm_execute(event, p_data);
}
/*******************************************************************************
**
** Function bta_hf_client_disc_acp_res
**
** Description This function handles a discovery result when acceptor.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_disc_acp_res(tBTA_HF_CLIENT_DATA *p_data)
{
/* if found service */
if (p_data->disc_result.status == SDP_SUCCESS ||
p_data->disc_result.status == SDP_DB_FULL)
{
/* get attributes */
bta_hf_client_sdp_find_attr();
}
/* free discovery db */
bta_hf_client_free_db(p_data);
}
/*******************************************************************************
**
** Function bta_hf_client_rfc_data
**
** Description Read and process data from RFCOMM.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_rfc_data(tBTA_HF_CLIENT_DATA *p_data)
{
UINT16 len;
char buf[BTA_HF_CLIENT_RFC_READ_MAX];
UNUSED(p_data);
memset(buf, 0, sizeof(buf));
/* read data from rfcomm; if bad status, we're done */
while (PORT_ReadData(bta_hf_client_cb.scb.conn_handle, buf, BTA_HF_CLIENT_RFC_READ_MAX, &len) == PORT_SUCCESS)
{
/* if no data, we're done */
if (len == 0)
{
break;
}
bta_hf_client_at_parse(buf, len);
/* no more data to read, we're done */
if (len < BTA_HF_CLIENT_RFC_READ_MAX)
{
break;
}
}
}
/*******************************************************************************
**
** Function bta_hf_client_svc_conn_open
**
** Description Service level connection opened
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_svc_conn_open(tBTA_HF_CLIENT_DATA *p_data)
{
tBTA_HF_CLIENT evt;
UNUSED(p_data);
memset(&evt, 0, sizeof(evt));
if (!bta_hf_client_cb.scb.svc_conn)
{
/* set state variable */
bta_hf_client_cb.scb.svc_conn = TRUE;
/* call callback */
evt.conn.peer_feat = bta_hf_client_cb.scb.peer_features;
evt.conn.chld_feat = bta_hf_client_cb.scb.chld_features;
(*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_CONN_EVT, &evt);
}
}
/*******************************************************************************
**
** Function bta_hf_client_cback_ind
**
** Description Send indicator callback event to application.
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_ind(tBTA_HF_CLIENT_IND_TYPE type, UINT16 value)
{
tBTA_HF_CLIENT evt;
memset(&evt, 0, sizeof(evt));
evt.ind.type = type;
evt.ind.value = value;
(*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_IND_EVT, &evt);
}
/*******************************************************************************
**
** Function bta_hf_client_evt_val
**
** Description Send event to application.
** This is a generic helper for events with common data.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_evt_val(tBTA_HF_CLIENT_EVT type, UINT16 value)
{
tBTA_HF_CLIENT evt;
memset(&evt, 0, sizeof(evt));
evt.val.value = value;
(*bta_hf_client_cb.p_cback)(type, &evt);
}
/*******************************************************************************
**
** Function bta_hf_client_operator_name
**
** Description Send operator name event to application.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_operator_name(char *name)
{
tBTA_HF_CLIENT evt;
memset(&evt, 0, sizeof(evt));
strlcpy(evt.operator.name, name, BTA_HF_CLIENT_OPERATOR_NAME_LEN + 1);
evt.operator.name[BTA_HF_CLIENT_OPERATOR_NAME_LEN] = '\0';
(*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_OPERATOR_NAME_EVT, &evt);
}
/*******************************************************************************
**
** Function bta_hf_client_clip
**
** Description Send CLIP event to application.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_clip(char *number)
{
tBTA_HF_CLIENT evt;
memset(&evt, 0, sizeof(evt));
strlcpy(evt.number.number, number, BTA_HF_CLIENT_NUMBER_LEN + 1);
evt.number.number[BTA_HF_CLIENT_NUMBER_LEN] = '\0';
(*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_CLIP_EVT, &evt);
}
/*******************************************************************************
**
** Function bta_hf_client_ccwa
**
** Description Send CLIP event to application.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_ccwa(char *number)
{
tBTA_HF_CLIENT evt;
memset(&evt, 0, sizeof(evt));
strlcpy(evt.number.number, number, BTA_HF_CLIENT_NUMBER_LEN + 1);
evt.number.number[BTA_HF_CLIENT_NUMBER_LEN] = '\0';
(*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_CCWA_EVT, &evt);
}
/*******************************************************************************
**
** Function bta_hf_client_at_result
**
** Description Send AT result event to application.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_at_result(tBTA_HF_CLIENT_AT_RESULT_TYPE type, UINT16 cme)
{
tBTA_HF_CLIENT evt;
memset(&evt, 0, sizeof(evt));
evt.result.type = type;
evt.result.cme = cme;
(*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_AT_RESULT_EVT, &evt);
}
/*******************************************************************************
**
** Function bta_hf_client_clcc
**
** Description Send clcc event to application.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_clcc(UINT32 idx, BOOLEAN incoming, UINT8 status, BOOLEAN mpty, char *number)
{
tBTA_HF_CLIENT evt;
memset(&evt, 0, sizeof(evt));
evt.clcc.idx = idx;
evt.clcc.inc = incoming;
evt.clcc.status = status;
evt.clcc.mpty = mpty;
if (number)
{
evt.clcc.number_present = TRUE;
strlcpy(evt.clcc.number, number, BTA_HF_CLIENT_NUMBER_LEN + 1);
evt.clcc.number[BTA_HF_CLIENT_NUMBER_LEN] = '\0';
}
(*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_CLCC_EVT, &evt);
}
/*******************************************************************************
**
** Function bta_hf_client_cnum
**
** Description Send cnum event to application.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_cnum(char *number, UINT16 service)
{
tBTA_HF_CLIENT evt;
memset(&evt, 0, sizeof(evt));
evt.cnum.service = service;
strlcpy(evt.cnum.number, number, BTA_HF_CLIENT_NUMBER_LEN + 1);
evt.cnum.number[BTA_HF_CLIENT_NUMBER_LEN] = '\0';
(*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_CNUM_EVT, &evt);
}
/*******************************************************************************
**
** Function bta_hf_client_binp
**
** Description Send BINP event to application.
**
**
** Returns void
**
*******************************************************************************/
void bta_hf_client_binp(char *number)
{
tBTA_HF_CLIENT evt;
memset(&evt, 0, sizeof(evt));
strlcpy(evt.number.number, number, BTA_HF_CLIENT_NUMBER_LEN + 1);
evt.number.number[BTA_HF_CLIENT_NUMBER_LEN] = '\0';
(*bta_hf_client_cb.p_cback)(BTA_HF_CLIENT_BINP_EVT, &evt);
}