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btm_ble_gap.c
3874 lines (3422 loc) · 144 KB
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btm_ble_gap.c
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/******************************************************************************
*
* Copyright (C) 2008-2014 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 functions for BLE GAP.
*
******************************************************************************/
#include <string.h>
//#include <stdio.h>
#include <stddef.h>
#include "bt_types.h"
//#include "bt_utils.h"
#include "btm_int.h"
#include "btm_ble_api.h"
#include "btu.h"
#include "controller.h"
#include "hcimsgs.h"
#include "gap_api.h"
#if BLE_INCLUDED == TRUE
#include "l2c_int.h"
#include "gattdefs.h"
#include "gatt_int.h"
#include "btm_ble_int.h"
//#define LOG_TAG "bt_btm_ble"
//#include "osi/include/log.h"
#define BTM_BLE_NAME_SHORT 0x01
#define BTM_BLE_NAME_CMPL 0x02
#define BTM_BLE_FILTER_TARGET_UNKNOWN 0xff
#define BTM_BLE_POLICY_UNKNOWN 0xff
#define BTM_EXT_BLE_RMT_NAME_TIMEOUT 30
#define MIN_ADV_LENGTH 2
#define BTM_VSC_CHIP_CAPABILITY_RSP_LEN_L_RELEASE 9
static tBTM_BLE_VSC_CB cmn_ble_vsc_cb;
#if BLE_VND_INCLUDED == TRUE
static tBTM_BLE_CTRL_FEATURES_CBACK *p_ctrl_le_feature_rd_cmpl_cback = NULL;
#endif
tBTM_CallbackFunc conn_param_update_cb;
/*******************************************************************************
** Local functions
*******************************************************************************/
static void btm_ble_update_adv_flag(UINT8 flag);
static void btm_ble_process_adv_pkt_cont(BD_ADDR bda, UINT8 addr_type, UINT8 evt_type, UINT8 *p);
UINT8 *btm_ble_build_adv_data(tBTM_BLE_AD_MASK *p_data_mask, UINT8 **p_dst,
tBTM_BLE_ADV_DATA *p_data);
static UINT8 btm_set_conn_mode_adv_init_addr(tBTM_BLE_INQ_CB *p_cb,
BD_ADDR_PTR p_peer_addr_ptr,
tBLE_ADDR_TYPE *p_peer_addr_type,
tBLE_ADDR_TYPE *p_own_addr_type);
static void btm_ble_stop_observe(void);
static void btm_ble_stop_discover(void);
#define BTM_BLE_INQ_RESULT 0x01
#define BTM_BLE_OBS_RESULT 0x02
#define BTM_BLE_SEL_CONN_RESULT 0x04
#define BTM_BLE_DISCO_RESULT 0x08
/* LE states combo bit to check */
const UINT8 btm_le_state_combo_tbl[BTM_BLE_STATE_MAX][BTM_BLE_STATE_MAX][2] = {
{/* single state support */
{HCI_SUPP_LE_STATES_CONN_ADV_MASK, HCI_SUPP_LE_STATES_CONN_ADV_OFF}, /* conn_adv */
{HCI_SUPP_LE_STATES_INIT_MASK, HCI_SUPP_LE_STATES_INIT_OFF}, /* init */
{HCI_SUPP_LE_STATES_INIT_MASK, HCI_SUPP_LE_STATES_INIT_OFF}, /* master */
{HCI_SUPP_LE_STATES_SLAVE_MASK, HCI_SUPP_LE_STATES_SLAVE_OFF}, /* slave */
{0, 0}, /* todo: lo du dir adv, not covered ? */
{HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_OFF}, /* hi duty dir adv */
{HCI_SUPP_LE_STATES_NON_CONN_ADV_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_OFF}, /* non connectable adv */
{HCI_SUPP_LE_STATES_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_PASS_SCAN_OFF}, /* passive scan */
{HCI_SUPP_LE_STATES_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_ACTIVE_SCAN_OFF}, /* active scan */
{HCI_SUPP_LE_STATES_SCAN_ADV_MASK, HCI_SUPP_LE_STATESSCAN_ADV_OFF} /* scanable adv */
},
{ /* conn_adv =0 */
{0, 0}, /* conn_adv */
{HCI_SUPP_LE_STATES_CONN_ADV_INIT_MASK, HCI_SUPP_LE_STATES_CONN_ADV_INIT_OFF}, /* init: 32 */
{HCI_SUPP_LE_STATES_CONN_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_CONN_ADV_MASTER_OFF}, /* master: 35 */
{HCI_SUPP_LE_STATES_CONN_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_CONN_ADV_SLAVE_OFF}, /* slave: 38,*/
{0, 0}, /* lo du dir adv */
{0, 0}, /* hi duty dir adv */
{0, 0}, /* non connectable adv */
{HCI_SUPP_LE_STATES_CONN_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_CONN_ADV_PASS_SCAN_OFF}, /* passive scan */
{HCI_SUPP_LE_STATES_CONN_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_CONN_ADV_ACTIVE_SCAN_OFF}, /* active scan */
{0, 0} /* scanable adv */
},
{ /* init */
{HCI_SUPP_LE_STATES_CONN_ADV_INIT_MASK, HCI_SUPP_LE_STATES_CONN_ADV_INIT_OFF}, /* conn_adv: 32 */
{0, 0}, /* init */
{HCI_SUPP_LE_STATES_INIT_MASTER_MASK, HCI_SUPP_LE_STATES_INIT_MASTER_OFF}, /* master 28 */
{HCI_SUPP_LE_STATES_INIT_MASTER_SLAVE_MASK, HCI_SUPP_LE_STATES_INIT_MASTER_SLAVE_OFF}, /* slave 41 */
{HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_INIT_MASK, HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_INIT_OFF} ,/* lo du dir adv 34 */
{HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_INIT_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_INIT_OFF}, /* hi duty dir adv 33 */
{HCI_SUPP_LE_STATES_NON_CONN_INIT_MASK, HCI_SUPP_LE_STATES_NON_CONN_INIT_OFF}, /* non connectable adv */
{HCI_SUPP_LE_STATES_PASS_SCAN_INIT_MASK, HCI_SUPP_LE_STATES_PASS_SCAN_INIT_OFF}, /* passive scan */
{HCI_SUPP_LE_STATES_ACTIVE_SCAN_INIT_MASK, HCI_SUPP_LE_STATES_ACTIVE_SCAN_INIT_OFF}, /* active scan */
{HCI_SUPP_LE_STATES_SCAN_ADV_INIT_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_INIT_OFF} /* scanable adv */
},
{ /* master */
{HCI_SUPP_LE_STATES_CONN_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_CONN_ADV_MASTER_OFF}, /* conn_adv: 35 */
{HCI_SUPP_LE_STATES_INIT_MASTER_MASK, HCI_SUPP_LE_STATES_INIT_MASTER_OFF}, /* init 28 */
{HCI_SUPP_LE_STATES_INIT_MASTER_MASK, HCI_SUPP_LE_STATES_INIT_MASTER_OFF}, /* master 28 */
{HCI_SUPP_LE_STATES_CONN_ADV_INIT_MASK, HCI_SUPP_LE_STATES_CONN_ADV_INIT_OFF}, /* slave: 32 */
{HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_MASTER_OFF}, /* lo duty cycle adv 37 */
{HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASTER_OFF}, /* hi duty cycle adv 36 */
{HCI_SUPP_LE_STATES_NON_CONN_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_MASTER_OFF}, /* non connectable adv */
{HCI_SUPP_LE_STATES_PASS_SCAN_MASTER_MASK, HCI_SUPP_LE_STATES_PASS_SCAN_MASTER_OFF}, /* passive scan */
{HCI_SUPP_LE_STATES_ACTIVE_SCAN_MASTER_MASK, HCI_SUPP_LE_STATES_ACTIVE_SCAN_MASTER_OFF}, /* active scan */
{HCI_SUPP_LE_STATES_SCAN_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_MASTER_OFF} /* scanable adv */
},
{ /* slave */
{HCI_SUPP_LE_STATES_CONN_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_CONN_ADV_SLAVE_OFF}, /* conn_adv: 38,*/
{HCI_SUPP_LE_STATES_INIT_MASTER_SLAVE_MASK, HCI_SUPP_LE_STATES_INIT_MASTER_SLAVE_OFF}, /* init 41 */
{HCI_SUPP_LE_STATES_INIT_MASTER_SLAVE_MASK, HCI_SUPP_LE_STATES_INIT_MASTER_SLAVE_OFF}, /* master 41 */
{HCI_SUPP_LE_STATES_CONN_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_CONN_ADV_SLAVE_OFF}, /* slave: 38,*/
{HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_SLAVE_OFF}, /* lo duty cycle adv 40 */
{HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_SLAVE_OFF}, /* hi duty cycle adv 39 */
{HCI_SUPP_LE_STATES_NON_CONN_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_SLAVE_OFF}, /* non connectable adv */
{HCI_SUPP_LE_STATES_PASS_SCAN_SLAVE_MASK, HCI_SUPP_LE_STATES_PASS_SCAN_SLAVE_OFF}, /* passive scan */
{HCI_SUPP_LE_STATES_ACTIVE_SCAN_SLAVE_MASK, HCI_SUPP_LE_STATES_ACTIVE_SCAN_SLAVE_OFF}, /* active scan */
{HCI_SUPP_LE_STATES_SCAN_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_SLAVE_OFF} /* scanable adv */
},
{ /* lo duty cycle adv */
{0, 0}, /* conn_adv: 38,*/
{HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_INIT_MASK, HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_INIT_OFF} ,/* init 34 */
{HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_MASTER_OFF}, /* master 37 */
{HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_LO_DUTY_DIR_ADV_SLAVE_OFF}, /* slave: 40 */
{0, 0}, /* lo duty cycle adv 40 */
{0, 0}, /* hi duty cycle adv 39 */
{0, 0}, /* non connectable adv */
{0, 0}, /* TODO: passive scan, not covered? */
{0, 0}, /* TODO: active scan, not covered? */
{0, 0} /* scanable adv */
},
{ /* hi duty cycle adv */
{0, 0}, /* conn_adv: 38,*/
{HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_INIT_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_INIT_OFF}, /* init 33 */
{HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_MASTER_OFF}, /* master 36 */
{HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_SLAVE_OFF}, /* slave: 39*/
{0, 0}, /* lo duty cycle adv 40 */
{0, 0}, /* hi duty cycle adv 39 */
{0, 0}, /* non connectable adv */
{HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_PASS_SCAN_OFF}, /* passive scan */
{HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_ACTIVE_SCAN_OFF}, /* active scan */
{0, 0} /* scanable adv */
},
{ /* non connectable adv */
{0, 0}, /* conn_adv: */
{HCI_SUPP_LE_STATES_NON_CONN_INIT_MASK, HCI_SUPP_LE_STATES_NON_CONN_INIT_OFF}, /* init */
{HCI_SUPP_LE_STATES_NON_CONN_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_MASTER_OFF}, /* master */
{HCI_SUPP_LE_STATES_NON_CONN_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_SLAVE_OFF}, /* slave: */
{0, 0}, /* lo duty cycle adv */
{0, 0}, /* hi duty cycle adv */
{0, 0}, /* non connectable adv */
{HCI_SUPP_LE_STATES_NON_CONN_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_PASS_SCAN_OFF}, /* passive scan */
{HCI_SUPP_LE_STATES_NON_CONN_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_ACTIVE_SCAN_OFF}, /* active scan */
{0, 0} /* scanable adv */
},
{ /* passive scan */
{HCI_SUPP_LE_STATES_CONN_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_CONN_ADV_PASS_SCAN_OFF}, /* conn_adv: */
{HCI_SUPP_LE_STATES_PASS_SCAN_INIT_MASK, HCI_SUPP_LE_STATES_PASS_SCAN_INIT_OFF}, /* init */
{HCI_SUPP_LE_STATES_PASS_SCAN_MASTER_MASK, HCI_SUPP_LE_STATES_PASS_SCAN_MASTER_OFF}, /* master */
{HCI_SUPP_LE_STATES_PASS_SCAN_SLAVE_MASK, HCI_SUPP_LE_STATES_PASS_SCAN_SLAVE_OFF}, /* slave: */
{0, 0}, /* lo duty cycle adv */
{HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_PASS_SCAN_OFF}, /* hi duty cycle adv */
{HCI_SUPP_LE_STATES_NON_CONN_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_PASS_SCAN_OFF}, /* non connectable adv */
{0, 0}, /* passive scan */
{0, 0}, /* active scan */
{HCI_SUPP_LE_STATES_SCAN_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_PASS_SCAN_OFF} /* scanable adv */
},
{ /* active scan */
{HCI_SUPP_LE_STATES_CONN_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_CONN_ADV_ACTIVE_SCAN_OFF}, /* conn_adv: */
{HCI_SUPP_LE_STATES_ACTIVE_SCAN_INIT_MASK, HCI_SUPP_LE_STATES_ACTIVE_SCAN_INIT_OFF}, /* init */
{HCI_SUPP_LE_STATES_ACTIVE_SCAN_MASTER_MASK, HCI_SUPP_LE_STATES_ACTIVE_SCAN_MASTER_OFF}, /* master */
{HCI_SUPP_LE_STATES_ACTIVE_SCAN_SLAVE_MASK, HCI_SUPP_LE_STATES_ACTIVE_SCAN_SLAVE_OFF}, /* slave: */
{0, 0}, /* lo duty cycle adv */
{HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_HI_DUTY_DIR_ADV_ACTIVE_SCAN_OFF}, /* hi duty cycle adv */
{HCI_SUPP_LE_STATES_NON_CONN_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_NON_CONN_ADV_ACTIVE_SCAN_OFF}, /* non connectable adv */
{0, 0}, /* TODO: passive scan */
{0, 0}, /* TODO: active scan */
{HCI_SUPP_LE_STATES_SCAN_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_ACTIVE_SCAN_OFF} /* scanable adv */
},
{ /* scanable adv */
{0, 0}, /* conn_adv: */
{HCI_SUPP_LE_STATES_SCAN_ADV_INIT_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_INIT_OFF}, /* init */
{HCI_SUPP_LE_STATES_SCAN_ADV_MASTER_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_MASTER_OFF}, /* master */
{HCI_SUPP_LE_STATES_SCAN_ADV_SLAVE_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_SLAVE_OFF}, /* slave: */
{0, 0}, /* lo duty cycle adv */
{0, 0}, /* hi duty cycle adv */
{0, 0}, /* non connectable adv */
{HCI_SUPP_LE_STATES_SCAN_ADV_PASS_SCAN_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_PASS_SCAN_OFF}, /* passive scan */
{HCI_SUPP_LE_STATES_SCAN_ADV_ACTIVE_SCAN_MASK, HCI_SUPP_LE_STATES_SCAN_ADV_ACTIVE_SCAN_OFF}, /* active scan */
{0, 0} /* scanable adv */
}
};
/* check LE combo state supported */
#define BTM_LE_STATES_SUPPORTED(x, y, z) ((x)[(z)] & (y))
/*******************************************************************************
**
** Function BTM_BleRegiseterConnParamCallback
**
** Description register connection parameters update callback func
**
** Returns void
**
*******************************************************************************/
void BTM_BleRegiseterConnParamCallback(tBTM_UPDATE_CONN_PARAM_CBACK *update_conn_param_cb)
{
conn_param_update_cb.update_conn_param_cb = update_conn_param_cb;
}
/*******************************************************************************
**
** Function BTM_BleUpdateAdvWhitelist
**
** Description Add or remove device from advertising white list
**
** Returns void
**
*******************************************************************************/
BOOLEAN BTM_BleUpdateAdvWhitelist(BOOLEAN add_remove, BD_ADDR remote_bda, tBTM_ADD_WHITELIST_CBACK *add_wl_cb)
{
return btm_update_dev_to_white_list(add_remove, remote_bda, add_wl_cb);
}
/*******************************************************************************
**
** Function BTM_BleUpdateAdvFilterPolicy
**
** Description This function update the filter policy of advertiser.
**
** Parameter adv_policy: advertising filter policy
**
** Return void
*******************************************************************************/
void BTM_BleUpdateAdvFilterPolicy(tBTM_BLE_AFP adv_policy)
{
tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var;
tBLE_ADDR_TYPE init_addr_type = BLE_ADDR_PUBLIC;
BD_ADDR p_addr_ptr = {0};
UINT8 adv_mode = p_cb->adv_mode;
BTM_TRACE_EVENT ("BTM_BleUpdateAdvFilterPolicy\n");
if (!controller_get_interface()->supports_ble()) {
return;
}
if (p_cb->afp != adv_policy) {
p_cb->afp = adv_policy;
/* if adv active, stop and restart */
btm_ble_stop_adv ();
if (p_cb->connectable_mode & BTM_BLE_CONNECTABLE)
p_cb->evt_type = btm_set_conn_mode_adv_init_addr(p_cb, p_addr_ptr, &init_addr_type,
&p_cb->adv_addr_type);
btsnd_hcic_ble_write_adv_params ((UINT16)(p_cb->adv_interval_min ? p_cb->adv_interval_min :
BTM_BLE_GAP_ADV_SLOW_INT),
(UINT16)(p_cb->adv_interval_max ? p_cb->adv_interval_max :
BTM_BLE_GAP_ADV_SLOW_INT),
p_cb->evt_type,
p_cb->adv_addr_type,
init_addr_type,
p_addr_ptr,
p_cb->adv_chnl_map,
p_cb->afp);
if (adv_mode == BTM_BLE_ADV_ENABLE) {
btm_ble_start_adv ();
}
}
}
/*******************************************************************************
**
** Function btm_ble_send_extended_scan_params
**
** Description This function sends out the extended scan parameters command to the controller
**
** Parameters scan_type - Scan type
** scan_int - Scan interval
** scan_win - Scan window
** addr_type_own - Own address type
** scan_filter_policy - Scan filter policy
**
** Returns TRUE or FALSE
**
*******************************************************************************/
BOOLEAN btm_ble_send_extended_scan_params(UINT8 scan_type, UINT32 scan_int,
UINT32 scan_win, UINT8 addr_type_own,
UINT8 scan_filter_policy)
{
UINT8 scan_param[HCIC_PARAM_SIZE_BLE_WRITE_EXTENDED_SCAN_PARAM];
UINT8 *pp_scan = scan_param;
memset(scan_param, 0, HCIC_PARAM_SIZE_BLE_WRITE_EXTENDED_SCAN_PARAM);
UINT8_TO_STREAM(pp_scan, scan_type);
UINT32_TO_STREAM(pp_scan, scan_int);
UINT32_TO_STREAM(pp_scan, scan_win);
UINT8_TO_STREAM(pp_scan, addr_type_own);
UINT8_TO_STREAM(pp_scan, scan_filter_policy);
BTM_TRACE_DEBUG("%s, %d, %d", __func__, scan_int, scan_win);
if ((BTM_VendorSpecificCommand(HCI_BLE_EXTENDED_SCAN_PARAMS_OCF,
HCIC_PARAM_SIZE_BLE_WRITE_EXTENDED_SCAN_PARAM, scan_param, NULL)) != BTM_SUCCESS) {
BTM_TRACE_ERROR("%s error sending extended scan parameters", __func__);
return FALSE;
}
return TRUE;
}
/*******************************************************************************
**
** Function BTM_BleObserve
**
** Description This procedure keep the device listening for advertising
** events from a broadcast device.
**
** Parameters start: start or stop observe.
** white_list: use white list in observer mode or not.
**
** Returns void
**
*******************************************************************************/
tBTM_STATUS BTM_BleObserve(BOOLEAN start, UINT32 duration,
tBTM_INQ_RESULTS_CB *p_results_cb, tBTM_CMPL_CB *p_cmpl_cb)
{
tBTM_BLE_INQ_CB *p_inq = &btm_cb.ble_ctr_cb.inq_var;
tBTM_STATUS status = BTM_WRONG_MODE;
UINT32 scan_interval = !p_inq->scan_interval ? BTM_BLE_GAP_DISC_SCAN_INT : p_inq->scan_interval;
UINT32 scan_window = !p_inq->scan_window ? BTM_BLE_GAP_DISC_SCAN_WIN : p_inq->scan_window;
BTM_TRACE_EVENT ("%s : scan_type:%d, %d, %d\n", __func__, btm_cb.btm_inq_vars.scan_type,
p_inq->scan_interval, p_inq->scan_window);
if (!controller_get_interface()->supports_ble()) {
return BTM_ILLEGAL_VALUE;
}
if (start) {
/* shared inquiry database, do not allow observe if any inquiry is active */
if (BTM_BLE_IS_OBS_ACTIVE(btm_cb.ble_ctr_cb.scan_activity)) {
BTM_TRACE_ERROR("%s Observe Already Active", __func__);
return status;
}
btm_cb.ble_ctr_cb.p_obs_results_cb = p_results_cb;
btm_cb.ble_ctr_cb.p_obs_cmpl_cb = p_cmpl_cb;
status = BTM_CMD_STARTED;
/* scan is not started */
if (!BTM_BLE_IS_SCAN_ACTIVE(btm_cb.ble_ctr_cb.scan_activity)) {
/* allow config of scan type */
p_inq->scan_type = (p_inq->scan_type == BTM_BLE_SCAN_MODE_NONE) ?
BTM_BLE_SCAN_MODE_ACTI : p_inq->scan_type;
/* assume observe always not using white list */
#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
/* enable resolving list */
btm_ble_enable_resolving_list_for_platform(BTM_BLE_RL_SCAN);
#endif
if (cmn_ble_vsc_cb.extended_scan_support == 0) {
btsnd_hcic_ble_set_scan_params(p_inq->scan_type, (UINT16)scan_interval,
(UINT16)scan_window,
btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type,
BTM_BLE_DEFAULT_SFP);
} else {
btm_ble_send_extended_scan_params(p_inq->scan_type, scan_interval, scan_window,
btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type,
BTM_BLE_DEFAULT_SFP);
}
p_inq->scan_duplicate_filter = BTM_BLE_DUPLICATE_DISABLE;
status = btm_ble_start_scan();
}
if (status == BTM_CMD_STARTED) {
btm_cb.ble_ctr_cb.scan_activity |= BTM_LE_OBSERVE_ACTIVE;
if (duration != 0)
/* start observer timer */
{
btu_start_timer (&btm_cb.ble_ctr_cb.obs_timer_ent, BTU_TTYPE_BLE_OBSERVE, duration);
}
}
} else if (BTM_BLE_IS_OBS_ACTIVE(btm_cb.ble_ctr_cb.scan_activity)) {
status = BTM_CMD_STARTED;
btm_ble_stop_observe();
} else {
BTM_TRACE_ERROR("%s Observe not active\n", __func__);
}
return status;
}
/*******************************************************************************
**
** Function BTM_BleScan
**
** Description This procedure keep the device listening for advertising
** events from a broadcast device.
**
** Parameters start: start or stop scan.
** white_list: use white list in observer mode or not.
**
** Returns void
**
*******************************************************************************/
tBTM_STATUS BTM_BleScan(BOOLEAN start, UINT32 duration,
tBTM_INQ_RESULTS_CB *p_results_cb, tBTM_CMPL_CB *p_cmpl_cb)
{
tBTM_BLE_INQ_CB *p_inq = &btm_cb.ble_ctr_cb.inq_var;
tBTM_STATUS status = BTM_WRONG_MODE;
if (!controller_get_interface()->supports_ble()) {
return BTM_ILLEGAL_VALUE;
}
if (start) {
/* shared inquiry database, do not allow scan if any inquiry is active */
if (BTM_BLE_IS_DISCO_ACTIVE(btm_cb.ble_ctr_cb.scan_activity)) {
BTM_TRACE_ERROR("%s scan already active", __func__);
return status;
}
btm_cb.ble_ctr_cb.p_scan_results_cb = p_results_cb;
btm_cb.ble_ctr_cb.p_scan_cmpl_cb = p_cmpl_cb;
status = BTM_CMD_STARTED;
/* scan is not started */
if (!BTM_BLE_IS_SCAN_ACTIVE(btm_cb.ble_ctr_cb.scan_activity)) {
/* assume observe always not using white list */
#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
/* enable resolving list */
btm_ble_enable_resolving_list_for_platform(BTM_BLE_RL_SCAN);
#endif
p_inq->scan_duplicate_filter = BTM_BLE_DUPLICATE_DISABLE;
status = btm_ble_start_scan();
}
if (status == BTM_CMD_STARTED) {
btm_cb.ble_ctr_cb.scan_activity |= BTM_LE_DISCOVER_ACTIVE;
if (duration != 0)
/* start observer timer */
{
btu_start_timer (&btm_cb.ble_ctr_cb.scan_timer_ent, BTU_TTYPE_BLE_SCAN, duration);
}
}
} else if (BTM_BLE_IS_DISCO_ACTIVE(btm_cb.ble_ctr_cb.scan_activity)) {
status = BTM_CMD_STARTED;
btm_ble_stop_discover();
} else {
BTM_TRACE_ERROR("%s scan not active\n", __func__);
}
return status;
}
/*******************************************************************************
**
** Function BTM_BleBroadcast
**
** Description This function is to start or stop broadcasting.
**
** Parameters start: start or stop broadcasting.
**
** Returns status.
**
*******************************************************************************/
tBTM_STATUS BTM_BleBroadcast(BOOLEAN start, tBTM_START_STOP_ADV_CMPL_CBACK *p_stop_adv_cback)
{
tBTM_STATUS status = BTM_NO_RESOURCES;
tBTM_LE_RANDOM_CB *p_addr_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var;
UINT8 evt_type = p_cb->scan_rsp ? BTM_BLE_DISCOVER_EVT : BTM_BLE_NON_CONNECT_EVT;
if (!controller_get_interface()->supports_ble()) {
return BTM_ILLEGAL_VALUE;
}
#ifdef BTM_BLE_PC_ADV_TEST_MODE
if (BTM_BLE_PC_ADV_TEST_MODE) {
evt_type = p_cb->scan_rsp ? BTM_BLE_CONNECT_EVT : BTM_BLE_NON_CONNECT_EVT;
}
#endif
// if adv state is BTM_BLE_ADV_PENDING, return immediately
if (p_cb->state == BTM_BLE_ADV_PENDING) {
if (p_stop_adv_cback) {
(*p_stop_adv_cback)(HCI_ERR_ILLEGAL_COMMAND);
}
return BTM_BUSY;
}
if (start && p_cb->adv_mode == BTM_BLE_ADV_DISABLE) {
/* update adv params */
if (!btsnd_hcic_ble_write_adv_params ((UINT16)(p_cb->adv_interval_min ? p_cb->adv_interval_min :
BTM_BLE_GAP_ADV_INT),
(UINT16)(p_cb->adv_interval_max ? p_cb->adv_interval_max :
BTM_BLE_GAP_ADV_INT),
evt_type,
p_addr_cb->own_addr_type,
p_cb->direct_bda.type,
p_cb->direct_bda.bda,
p_cb->adv_chnl_map,
p_cb->afp))
{
status = BTM_NO_RESOURCES;
} else {
p_cb->evt_type = evt_type;
}
status = btm_ble_start_adv ();
} else if (!start && p_cb->adv_mode == BTM_BLE_ADV_ENABLE) {
//save the stop adv callback to the BTM env.
p_cb->p_stop_adv_cb = p_stop_adv_cback;
status = btm_ble_stop_adv();
#if BLE_PRIVACY_SPT == TRUE
btm_ble_disable_resolving_list(BTM_BLE_RL_ADV, TRUE);
#endif
} else {
/*
1. start adv when adv has already started (not used)
2. stop adv shen adv has already stoped
*/
status = BTM_SUCCESS;
if (p_stop_adv_cback) {
(*p_stop_adv_cback)(status);
}
}
return status;
}
#if BLE_VND_INCLUDED == TRUE
/*******************************************************************************
**
** Function btm_vsc_brcm_features_complete
**
** Description Command Complete callback for HCI_BLE_VENDOR_CAP_OCF
**
** Returns void
**
*******************************************************************************/
static void btm_ble_vendor_capability_vsc_cmpl_cback (tBTM_VSC_CMPL *p_vcs_cplt_params)
{
UINT8 status = 0xFF;
UINT8 *p;
BTM_TRACE_DEBUG("%s", __func__);
/* Check status of command complete event */
if ((p_vcs_cplt_params->opcode == HCI_BLE_VENDOR_CAP_OCF) &&
(p_vcs_cplt_params->param_len > 0)) {
p = p_vcs_cplt_params->p_param_buf;
STREAM_TO_UINT8(status, p);
}
if (status == HCI_SUCCESS) {
STREAM_TO_UINT8(btm_cb.cmn_ble_vsc_cb.adv_inst_max, p);
STREAM_TO_UINT8(btm_cb.cmn_ble_vsc_cb.rpa_offloading, p);
STREAM_TO_UINT16(btm_cb.cmn_ble_vsc_cb.tot_scan_results_strg, p);
STREAM_TO_UINT8(btm_cb.cmn_ble_vsc_cb.max_irk_list_sz, p);
STREAM_TO_UINT8(btm_cb.cmn_ble_vsc_cb.filter_support, p);
STREAM_TO_UINT8(btm_cb.cmn_ble_vsc_cb.max_filter, p);
STREAM_TO_UINT8(btm_cb.cmn_ble_vsc_cb.energy_support, p);
if (p_vcs_cplt_params->param_len > BTM_VSC_CHIP_CAPABILITY_RSP_LEN_L_RELEASE) {
STREAM_TO_UINT16(btm_cb.cmn_ble_vsc_cb.version_supported, p);
} else {
btm_cb.cmn_ble_vsc_cb.version_supported = BTM_VSC_CHIP_CAPABILITY_L_VERSION;
}
if (btm_cb.cmn_ble_vsc_cb.version_supported >= BTM_VSC_CHIP_CAPABILITY_M_VERSION) {
STREAM_TO_UINT16(btm_cb.cmn_ble_vsc_cb.total_trackable_advertisers, p);
STREAM_TO_UINT16(btm_cb.cmn_ble_vsc_cb.extended_scan_support, p);
STREAM_TO_UINT16(btm_cb.cmn_ble_vsc_cb.debug_logging_supported, p);
}
btm_cb.cmn_ble_vsc_cb.values_read = TRUE;
}
BTM_TRACE_DEBUG("%s: stat=%d, irk=%d, ADV ins:%d, rpa=%d, ener=%d, ext_scan=%d",
__func__, status, btm_cb.cmn_ble_vsc_cb.max_irk_list_sz,
btm_cb.cmn_ble_vsc_cb.adv_inst_max, btm_cb.cmn_ble_vsc_cb.rpa_offloading,
btm_cb.cmn_ble_vsc_cb.energy_support, btm_cb.cmn_ble_vsc_cb.extended_scan_support);
if (BTM_BleMaxMultiAdvInstanceCount() > 0) {
btm_ble_multi_adv_init();
}
if (btm_cb.cmn_ble_vsc_cb.max_filter > 0) {
btm_ble_adv_filter_init();
}
#if (defined BLE_PRIVACY_SPT && BLE_PRIVACY_SPT == TRUE)
/* VS capability included and non-4.2 device */
if (btm_cb.cmn_ble_vsc_cb.max_irk_list_sz > 0 &&
controller_get_interface()->get_ble_resolving_list_max_size() == 0) {
btm_ble_resolving_list_init(btm_cb.cmn_ble_vsc_cb.max_irk_list_sz);
}
#endif
if (btm_cb.cmn_ble_vsc_cb.tot_scan_results_strg > 0) {
btm_ble_batchscan_init();
}
if (p_ctrl_le_feature_rd_cmpl_cback != NULL) {
p_ctrl_le_feature_rd_cmpl_cback(status);
}
}
#endif
/*******************************************************************************
**
** Function BTM_BleGetVendorCapabilities
**
** Description This function reads local LE features
**
** Parameters p_cmn_vsc_cb : Locala LE capability structure
**
** Returns void
**
*******************************************************************************/
extern void BTM_BleGetVendorCapabilities(tBTM_BLE_VSC_CB *p_cmn_vsc_cb)
{
BTM_TRACE_DEBUG("BTM_BleGetVendorCapabilities");
if (NULL != p_cmn_vsc_cb) {
*p_cmn_vsc_cb = btm_cb.cmn_ble_vsc_cb;
}
}
/******************************************************************************
**
** Function BTM_BleReadControllerFeatures
**
** Description Reads BLE specific controller features
**
** Parameters: tBTM_BLE_CTRL_FEATURES_CBACK : Callback to notify when features are read
**
** Returns void
**
*******************************************************************************/
extern void BTM_BleReadControllerFeatures(tBTM_BLE_CTRL_FEATURES_CBACK *p_vsc_cback)
{
if (TRUE == btm_cb.cmn_ble_vsc_cb.values_read) {
return;
}
#if BLE_VND_INCLUDED == TRUE
BTM_TRACE_DEBUG("BTM_BleReadControllerFeatures");
p_ctrl_le_feature_rd_cmpl_cback = p_vsc_cback;
if ( BTM_VendorSpecificCommand (HCI_BLE_VENDOR_CAP_OCF,
0,
NULL,
btm_ble_vendor_capability_vsc_cmpl_cback)
!= BTM_CMD_STARTED) {
BTM_TRACE_ERROR("LE Get_Vendor Capabilities Command Failed.");
}
#else
UNUSED(p_vsc_cback);
#endif
return ;
}
/*******************************************************************************
**
** Function BTM_BleEnableMixedPrivacyMode
**
** Description This function is called to enabled Mixed mode if privacy 1.2
** is applicable in controller.
**
** Parameters mixed_on: mixed mode to be used or not.
**
** Returns void
**
*******************************************************************************/
void BTM_BleEnableMixedPrivacyMode(BOOLEAN mixed_on)
{
#if BLE_PRIVACY_SPT == TRUE
btm_cb.ble_ctr_cb.mixed_mode = mixed_on;
/* TODO: send VSC to enabled mixed mode */
#endif
}
/*******************************************************************************
**
** Function BTM_BleConfigPrivacy
**
** Description This function is called to enable or disable the privacy in
** LE channel of the local device.
**
** Parameters privacy_mode: privacy mode on or off.
**
** Returns BOOLEAN privacy mode set success; otherwise failed.
**
*******************************************************************************/
BOOLEAN BTM_BleConfigPrivacy(BOOLEAN privacy_mode, tBTM_SET_LOCAL_PRIVACY_CBACK *set_local_privacy_cback)
{
#if BLE_PRIVACY_SPT == TRUE
tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb;
tBTM_LE_RANDOM_CB *random_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb;
if (random_cb){
random_cb->set_local_privacy_cback = set_local_privacy_cback;
}else{
BTM_TRACE_ERROR("%s,random_cb = NULL", __func__);
}
BTM_TRACE_EVENT ("%s\n", __func__);
/* if LE is not supported, return error */
if (!controller_get_interface()->supports_ble()) {
return FALSE;
}
/*
* Temporary solutions for pair with random address:
* can't set privacy when advertising, scaning or using static random address
* We will do futher work here
*/
if (p_cb->privacy_mode == BTM_PRIVACY_NONE
&& random_cb->own_addr_type == BLE_ADDR_RANDOM) {
BTM_TRACE_ERROR("Have set random adress, can't set privacy ");
return FALSE;
}
if (!(p_cb->inq_var.state != BTM_BLE_STOP_SCAN && p_cb->inq_var.state != BTM_BLE_STOP_ADV)) {
BTM_TRACE_ERROR("Advertising or scaning now, can't set privacy ");
return FALSE;
}
#if (defined(GAP_INCLUDED) && GAP_INCLUDED == TRUE && GATTS_INCLUDED == TRUE)
uint8_t addr_resolution = 0;
#endif /* defined(GAP_INCLUDED) && GAP_INCLUDED == TRUE && GATTS_INCLUDED == TRUE */
if (!privacy_mode) { /* if privacy disabled, always use public address */
p_cb->addr_mgnt_cb.own_addr_type = BLE_ADDR_PUBLIC;
p_cb->privacy_mode = BTM_PRIVACY_NONE;
if (random_cb && random_cb->set_local_privacy_cback){
(*random_cb->set_local_privacy_cback)(BTM_SET_PRIVACY_SUCCESS);
random_cb->set_local_privacy_cback = NULL;
}
} else { /* privacy is turned on*/
/* always set host random address, used when privacy 1.1 or priavcy 1.2 is disabled */
p_cb->addr_mgnt_cb.own_addr_type = BLE_ADDR_RANDOM;
btm_gen_resolvable_private_addr((void *)btm_gen_resolve_paddr_low);
if (BTM_BleMaxMultiAdvInstanceCount() > 0) {
btm_ble_multi_adv_enb_privacy(privacy_mode);
}
/* 4.2 controller only allow privacy 1.2 or mixed mode, resolvable private address in controller */
if (controller_get_interface()->supports_ble_privacy()) {
#if (defined(GAP_INCLUDED) && GAP_INCLUDED == TRUE && GATTS_INCLUDED == TRUE)
addr_resolution = 1;
#endif /* defined(GAP_INCLUDED) && GAP_INCLUDED == TRUE && GATTS_INCLUDED == TRUE */
/* check vendor specific capability */
p_cb->privacy_mode = btm_cb.ble_ctr_cb.mixed_mode ? BTM_PRIVACY_MIXED : BTM_PRIVACY_1_2;
} else { /* 4.1/4.0 controller */
p_cb->privacy_mode = BTM_PRIVACY_1_1;
}
}
#if (defined(GAP_INCLUDED) && GAP_INCLUDED == TRUE && GATTS_INCLUDED == TRUE)
GAP_BleAttrDBUpdate (GATT_UUID_GAP_CENTRAL_ADDR_RESOL, (tGAP_BLE_ATTR_VALUE *)&addr_resolution);
#endif
return TRUE;
#else
return FALSE;
#endif
}
/*******************************************************************************
**
** Function BTM_BleMaxMultiAdvInstanceCount
**
** Description Returns max number of multi adv instances supported by controller
**
** Returns Max multi adv instance count
**
*******************************************************************************/
extern UINT8 BTM_BleMaxMultiAdvInstanceCount(void)
{
return btm_cb.cmn_ble_vsc_cb.adv_inst_max < BTM_BLE_MULTI_ADV_MAX ?
btm_cb.cmn_ble_vsc_cb.adv_inst_max : BTM_BLE_MULTI_ADV_MAX;
}
#if BLE_PRIVACY_SPT == TRUE
/*******************************************************************************
**
** Function btm_ble_resolve_random_addr_on_adv
**
** Description resolve random address complete callback.
**
** Returns void
**
*******************************************************************************/
static void btm_ble_resolve_random_addr_on_adv(void *p_rec, void *p)
{
tBTM_SEC_DEV_REC *match_rec = (tBTM_SEC_DEV_REC *) p_rec;
UINT8 addr_type = BLE_ADDR_RANDOM;
BD_ADDR bda;
UINT8 *pp = (UINT8 *)p + 1;
UINT8 evt_type;
BTM_TRACE_EVENT ("btm_ble_resolve_random_addr_on_adv ");
STREAM_TO_UINT8 (evt_type, pp);
STREAM_TO_UINT8 (addr_type, pp);
STREAM_TO_BDADDR (bda, pp);
if (match_rec) {
BTM_TRACE_DEBUG("Random match");
match_rec->ble.active_addr_type = BTM_BLE_ADDR_RRA;
memcpy(match_rec->ble.cur_rand_addr, bda, BD_ADDR_LEN);
if (btm_ble_init_pseudo_addr(match_rec, bda)) {
memcpy(bda, match_rec->bd_addr, BD_ADDR_LEN);
} else {
// Assign the original address to be the current report address
memcpy(bda, match_rec->ble.pseudo_addr, BD_ADDR_LEN);
}
}
btm_ble_process_adv_pkt_cont(bda, addr_type, evt_type, pp);
return;
}
#endif
/*******************************************************************************
**
** Function BTM_BleLocalPrivacyEnabled
**
** Description Checks if local device supports private address
**
** Returns Return TRUE if local privacy is enabled else FALSE
**
*******************************************************************************/
BOOLEAN BTM_BleLocalPrivacyEnabled(void)
{
#if BLE_PRIVACY_SPT == TRUE
return (btm_cb.ble_ctr_cb.privacy_mode != BTM_PRIVACY_NONE);
#else
return false;
#endif
}
/*******************************************************************************
**
** Function BTM_BleSetBgConnType
**
** Description This function is called to set BLE connectable mode for a
** peripheral device.
**
** Parameters bg_conn_type: it can be auto connection, or selective connection.
** p_select_cback: callback function when selective connection procedure
** is being used.
**
** Returns void
**
*******************************************************************************/
BOOLEAN BTM_BleSetBgConnType(tBTM_BLE_CONN_TYPE bg_conn_type,
tBTM_BLE_SEL_CBACK *p_select_cback)
{
BOOLEAN started = TRUE;
BTM_TRACE_EVENT ("BTM_BleSetBgConnType ");
if (!controller_get_interface()->supports_ble()) {
return FALSE;
}
if (btm_cb.ble_ctr_cb.bg_conn_type != bg_conn_type) {
switch (bg_conn_type) {
case BTM_BLE_CONN_AUTO:
btm_ble_start_auto_conn(TRUE);
break;
case BTM_BLE_CONN_SELECTIVE:
if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_AUTO) {
btm_ble_start_auto_conn(FALSE);
}
btm_ble_start_select_conn(TRUE, p_select_cback);
break;
case BTM_BLE_CONN_NONE:
if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_AUTO) {
btm_ble_start_auto_conn(FALSE);
} else if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_SELECTIVE) {
btm_ble_start_select_conn(FALSE, NULL);
}
started = TRUE;
break;
default:
BTM_TRACE_ERROR("invalid bg connection type : %d ", bg_conn_type);
started = FALSE;
break;
}
if (started) {
btm_cb.ble_ctr_cb.bg_conn_type = bg_conn_type;
}
}
return started;
}
/*******************************************************************************
**
** Function BTM_BleClearBgConnDev
**
** Description This function is called to clear the whitelist,
** end any pending whitelist connections,
* and reset the local bg device list.
**
** Parameters void
**
** Returns void
**
*******************************************************************************/
void BTM_BleClearBgConnDev(void)
{
btm_ble_start_auto_conn(FALSE);
btm_ble_clear_white_list();
gatt_reset_bgdev_list();
}
/*******************************************************************************
**
** Function BTM_BleUpdateBgConnDev
**
** Description This function is called to add or remove a device into/from
** background connection procedure. The background connection
* procedure is decided by the background connection type, it can be
* auto connection, or selective connection.
**
** Parameters add_remove: TRUE to add; FALSE to remove.
** remote_bda: device address to add/remove.
**
** Returns void
**
*******************************************************************************/
BOOLEAN BTM_BleUpdateBgConnDev(BOOLEAN add_remove, BD_ADDR remote_bda)
{
BTM_TRACE_EVENT("%s() add=%d", __func__, add_remove);
return btm_update_dev_to_white_list(add_remove, remote_bda, NULL);
}
/*******************************************************************************
**
** Function BTM_BleSetConnectableMode
**
** Description This function is called to set BLE connectable mode for a
** peripheral device.
**
** Parameters conn_mode: directed connectable mode, or non-directed.It can
** be BTM_BLE_CONNECT_EVT, BTM_BLE_CONNECT_DIR_EVT or
** BTM_BLE_CONNECT_LO_DUTY_DIR_EVT
**
** Returns BTM_ILLEGAL_VALUE if controller does not support BLE.
** BTM_SUCCESS is status set successfully; otherwise failure.
**
*******************************************************************************/
tBTM_STATUS BTM_BleSetConnectableMode(tBTM_BLE_CONN_MODE connectable_mode)
{
tBTM_BLE_INQ_CB *p_cb = &btm_cb.ble_ctr_cb.inq_var;