| /****************************************************************************** |
| * |
| * Copyright (C) 1999-2012 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 functions for BLE whitelist operation. |
| * |
| ******************************************************************************/ |
| |
| #include <assert.h> |
| #include <string.h> |
| |
| #include "device/include/controller.h" |
| #include "osi/include/allocator.h" |
| #include "osi/include/hash_map.h" |
| #include "bt_types.h" |
| #include "btu.h" |
| #include "btm_int.h" |
| #include "l2c_int.h" |
| #include "hcimsgs.h" |
| #include "bt_utils.h" |
| |
| #ifndef BTM_BLE_SCAN_PARAM_TOUT |
| #define BTM_BLE_SCAN_PARAM_TOUT 50 /* 50 seconds */ |
| #endif |
| |
| #if (BLE_INCLUDED == TRUE) |
| |
| static void btm_suspend_wl_activity(tBTM_BLE_WL_STATE wl_state); |
| static void btm_resume_wl_activity(tBTM_BLE_WL_STATE wl_state); |
| |
| // Unfortunately (for now?) we have to maintain a copy of the device whitelist |
| // on the host to determine if a device is pending to be connected or not. This |
| // controls whether the host should keep trying to scan for whitelisted |
| // peripherals or not. |
| // TODO: Move all of this to controller/le/background_list or similar? |
| static const size_t background_connection_buckets = 42; |
| static hash_map_t *background_connections = NULL; |
| |
| typedef struct background_connection_t { |
| bt_bdaddr_t address; |
| } background_connection_t; |
| |
| static bool bdaddr_equality_fn(const void *x, const void *y) { |
| return bdaddr_equals((bt_bdaddr_t *)x, (bt_bdaddr_t *)y); |
| } |
| |
| static void background_connections_lazy_init() |
| { |
| if (!background_connections) { |
| background_connections = hash_map_new(background_connection_buckets, |
| hash_function_bdaddr, NULL, osi_free, bdaddr_equality_fn); |
| assert(background_connections); |
| } |
| } |
| |
| static void background_connection_add(bt_bdaddr_t *address) { |
| assert(address); |
| background_connections_lazy_init(); |
| background_connection_t *connection = hash_map_get(background_connections, address); |
| if (!connection) { |
| connection = osi_calloc(sizeof(background_connection_t)); |
| connection->address = *address; |
| hash_map_set(background_connections, &(connection->address), connection); |
| } |
| } |
| |
| static void background_connection_remove(bt_bdaddr_t *address) { |
| if (address && background_connections) |
| hash_map_erase(background_connections, address); |
| } |
| |
| static void background_connections_clear() { |
| if (background_connections) |
| hash_map_clear(background_connections); |
| } |
| |
| static bool background_connections_pending_cb(hash_map_entry_t *hash_entry, void *context) { |
| bool *pending_connections = context; |
| background_connection_t *connection = hash_entry->data; |
| const bool connected = BTM_IsAclConnectionUp(connection->address.address, BT_TRANSPORT_LE); |
| if (!connected) { |
| *pending_connections = true; |
| return false; |
| } |
| return true; |
| } |
| |
| static bool background_connections_pending() { |
| bool pending_connections = false; |
| if (background_connections) |
| hash_map_foreach(background_connections, background_connections_pending_cb, &pending_connections); |
| return pending_connections; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function btm_update_scanner_filter_policy |
| ** |
| ** Description This function updates the filter policy of scanner |
| *******************************************************************************/ |
| void btm_update_scanner_filter_policy(tBTM_BLE_SFP scan_policy) |
| { |
| tBTM_BLE_INQ_CB *p_inq = &btm_cb.ble_ctr_cb.inq_var; |
| |
| 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", __func__); |
| |
| p_inq->sfp = scan_policy; |
| p_inq->scan_type = p_inq->scan_type == BTM_BLE_SCAN_MODE_NONE ? BTM_BLE_SCAN_MODE_ACTI : p_inq->scan_type; |
| |
| if (btm_cb.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, |
| scan_policy); |
| } |
| 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, |
| scan_policy); |
| } |
| } |
| /******************************************************************************* |
| ** |
| ** Function btm_add_dev_to_controller |
| ** |
| ** Description This function load the device into controller white list |
| *******************************************************************************/ |
| BOOLEAN btm_add_dev_to_controller (BOOLEAN to_add, BD_ADDR bd_addr) |
| { |
| tBTM_SEC_DEV_REC *p_dev_rec = btm_find_dev (bd_addr); |
| tBLE_ADDR_TYPE addr_type = BLE_ADDR_PUBLIC; |
| BOOLEAN started = FALSE; |
| BD_ADDR dummy_bda = {0}; |
| tBT_DEVICE_TYPE dev_type; |
| |
| if (p_dev_rec != NULL && |
| p_dev_rec->device_type & BT_DEVICE_TYPE_BLE) |
| { |
| if (to_add) |
| { |
| if (p_dev_rec->ble.ble_addr_type == BLE_ADDR_PUBLIC || !BTM_BLE_IS_RESOLVE_BDA(bd_addr)) |
| { |
| started = btsnd_hcic_ble_add_white_list (p_dev_rec->ble.ble_addr_type, bd_addr); |
| p_dev_rec->ble.in_controller_list |= BTM_WHITE_LIST_BIT; |
| } |
| else if (memcmp(p_dev_rec->ble.static_addr, bd_addr, BD_ADDR_LEN) != 0 && |
| memcmp(p_dev_rec->ble.static_addr, dummy_bda, BD_ADDR_LEN) != 0) |
| { |
| started = btsnd_hcic_ble_add_white_list (p_dev_rec->ble.static_addr_type, |
| p_dev_rec->ble.static_addr); |
| p_dev_rec->ble.in_controller_list |= BTM_WHITE_LIST_BIT; |
| } |
| } |
| else |
| { |
| if (p_dev_rec->ble.ble_addr_type == BLE_ADDR_PUBLIC || !BTM_BLE_IS_RESOLVE_BDA(bd_addr)) |
| { |
| started = btsnd_hcic_ble_remove_from_white_list (p_dev_rec->ble.ble_addr_type, bd_addr); |
| } |
| if (memcmp(p_dev_rec->ble.static_addr, dummy_bda, BD_ADDR_LEN) != 0 && |
| memcmp(p_dev_rec->ble.static_addr, bd_addr, BD_ADDR_LEN) != 0) |
| { |
| started = btsnd_hcic_ble_remove_from_white_list (p_dev_rec->ble.static_addr_type, p_dev_rec->ble.static_addr); |
| } |
| p_dev_rec->ble.in_controller_list &= ~BTM_WHITE_LIST_BIT; |
| } |
| } /* if not a known device, shall we add it? */ |
| else |
| { |
| BTM_ReadDevInfo(bd_addr, &dev_type, &addr_type); |
| |
| started = btsnd_hcic_ble_remove_from_white_list (addr_type, bd_addr); |
| if (to_add) |
| started = btsnd_hcic_ble_add_white_list (addr_type, bd_addr); |
| } |
| |
| return started; |
| |
| } |
| /******************************************************************************* |
| ** |
| ** Function btm_execute_wl_dev_operation |
| ** |
| ** Description execute the pending whitelist device operation(loading or removing) |
| *******************************************************************************/ |
| BOOLEAN btm_execute_wl_dev_operation(void) |
| { |
| tBTM_BLE_WL_OP *p_dev_op = btm_cb.ble_ctr_cb.wl_op_q; |
| UINT8 i = 0; |
| BOOLEAN rt = TRUE; |
| |
| for (i = 0; i < BTM_BLE_MAX_BG_CONN_DEV_NUM && rt; i ++, p_dev_op ++) |
| { |
| if (p_dev_op->in_use) |
| { |
| rt = btm_add_dev_to_controller(p_dev_op->to_add, p_dev_op->bd_addr); |
| memset(p_dev_op, 0, sizeof(tBTM_BLE_WL_OP)); |
| } |
| else |
| break; |
| } |
| return rt; |
| } |
| /******************************************************************************* |
| ** |
| ** Function btm_enq_wl_dev_operation |
| ** |
| ** Description enqueue the pending whitelist device operation(loading or removing). |
| *******************************************************************************/ |
| void btm_enq_wl_dev_operation(BOOLEAN to_add, BD_ADDR bd_addr) |
| { |
| tBTM_BLE_WL_OP *p_dev_op = btm_cb.ble_ctr_cb.wl_op_q; |
| UINT8 i = 0; |
| |
| for (i = 0; i < BTM_BLE_MAX_BG_CONN_DEV_NUM; i ++, p_dev_op ++) |
| { |
| if (p_dev_op->in_use && !memcmp(p_dev_op->bd_addr, bd_addr, BD_ADDR_LEN)) |
| { |
| p_dev_op->to_add = to_add; |
| return; |
| } |
| else if (!p_dev_op->in_use) |
| break; |
| } |
| if (i != BTM_BLE_MAX_BG_CONN_DEV_NUM) |
| { |
| p_dev_op->in_use = TRUE; |
| p_dev_op->to_add = to_add; |
| memcpy(p_dev_op->bd_addr, bd_addr, BD_ADDR_LEN); |
| } |
| else |
| { |
| BTM_TRACE_ERROR("max pending WL operation reached, discard"); |
| } |
| return; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function btm_update_dev_to_white_list |
| ** |
| ** Description This function adds or removes a device into/from |
| ** the white list. |
| ** |
| *******************************************************************************/ |
| BOOLEAN btm_update_dev_to_white_list(BOOLEAN to_add, BD_ADDR bd_addr) |
| { |
| tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb; |
| |
| if (to_add && p_cb->white_list_avail_size == 0) |
| { |
| BTM_TRACE_ERROR("%s Whitelist full, unable to add device", __func__); |
| return FALSE; |
| } |
| |
| if (to_add) |
| background_connection_add((bt_bdaddr_t*)bd_addr); |
| else |
| background_connection_remove((bt_bdaddr_t*)bd_addr); |
| |
| btm_suspend_wl_activity(p_cb->wl_state); |
| btm_enq_wl_dev_operation(to_add, bd_addr); |
| btm_resume_wl_activity(p_cb->wl_state); |
| return TRUE; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function btm_ble_clear_white_list |
| ** |
| ** Description This function clears the white list. |
| ** |
| *******************************************************************************/ |
| void btm_ble_clear_white_list (void) |
| { |
| BTM_TRACE_EVENT ("btm_ble_clear_white_list"); |
| btsnd_hcic_ble_clear_white_list(); |
| background_connections_clear(); |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function btm_ble_clear_white_list_complete |
| ** |
| ** Description Indicates white list cleared. |
| ** |
| *******************************************************************************/ |
| void btm_ble_clear_white_list_complete(UINT8 *p_data, UINT16 evt_len) |
| { |
| tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb; |
| UINT8 status; |
| UNUSED(evt_len); |
| |
| BTM_TRACE_EVENT ("btm_ble_clear_white_list_complete"); |
| STREAM_TO_UINT8 (status, p_data); |
| |
| if (status == HCI_SUCCESS) |
| p_cb->white_list_avail_size = controller_get_interface()->get_ble_white_list_size(); |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function btm_ble_white_list_init |
| ** |
| ** Description Initialize white list size |
| ** |
| *******************************************************************************/ |
| void btm_ble_white_list_init(UINT8 white_list_size) |
| { |
| BTM_TRACE_DEBUG("%s white_list_size = %d", __func__, white_list_size); |
| btm_cb.ble_ctr_cb.white_list_avail_size = white_list_size; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function btm_ble_add_2_white_list_complete |
| ** |
| ** Description White list element added |
| ** |
| *******************************************************************************/ |
| void btm_ble_add_2_white_list_complete(UINT8 status) |
| { |
| BTM_TRACE_EVENT("%s status=%d", __func__, status); |
| if (status == HCI_SUCCESS) |
| --btm_cb.ble_ctr_cb.white_list_avail_size; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function btm_ble_remove_from_white_list_complete |
| ** |
| ** Description White list element removal complete |
| ** |
| *******************************************************************************/ |
| void btm_ble_remove_from_white_list_complete(UINT8 *p, UINT16 evt_len) |
| { |
| UNUSED(evt_len); |
| BTM_TRACE_EVENT ("%s status=%d", __func__, *p); |
| if (*p == HCI_SUCCESS) |
| ++btm_cb.ble_ctr_cb.white_list_avail_size; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function btm_ble_start_auto_conn |
| ** |
| ** Description This function is to start/stop auto connection procedure. |
| ** |
| ** Parameters start: TRUE to start; FALSE to stop. |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| BOOLEAN btm_ble_start_auto_conn(BOOLEAN start) |
| { |
| tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb; |
| BD_ADDR dummy_bda = {0}; |
| BOOLEAN exec = TRUE; |
| UINT16 scan_int; |
| UINT16 scan_win; |
| UINT8 own_addr_type = p_cb->addr_mgnt_cb.own_addr_type; |
| UINT8 peer_addr_type = BLE_ADDR_PUBLIC; |
| |
| if (start) |
| { |
| if (p_cb->conn_state == BLE_CONN_IDLE && background_connections_pending() |
| && btm_ble_topology_check(BTM_BLE_STATE_INIT)) |
| { |
| p_cb->wl_state |= BTM_BLE_WL_INIT; |
| |
| btm_execute_wl_dev_operation(); |
| |
| #if BLE_PRIVACY_SPT == TRUE |
| btm_ble_enable_resolving_list_for_platform(BTM_BLE_RL_INIT); |
| #endif |
| scan_int = (p_cb->scan_int == BTM_BLE_SCAN_PARAM_UNDEF) ? |
| BTM_BLE_SCAN_SLOW_INT_1 : p_cb->scan_int; |
| scan_win = (p_cb->scan_win == BTM_BLE_SCAN_PARAM_UNDEF) ? |
| BTM_BLE_SCAN_SLOW_WIN_1 : p_cb->scan_win; |
| |
| #if BLE_PRIVACY_SPT == TRUE |
| if (btm_cb.ble_ctr_cb.rl_state != BTM_BLE_RL_IDLE |
| && controller_get_interface()->supports_ble_privacy()) |
| { |
| own_addr_type |= BLE_ADDR_TYPE_ID_BIT; |
| peer_addr_type |= BLE_ADDR_TYPE_ID_BIT; |
| } |
| #endif |
| |
| if (!btsnd_hcic_ble_create_ll_conn (scan_int, /* UINT16 scan_int */ |
| scan_win, /* UINT16 scan_win */ |
| 0x01, /* UINT8 white_list */ |
| peer_addr_type, /* UINT8 addr_type_peer */ |
| dummy_bda, /* BD_ADDR bda_peer */ |
| own_addr_type, /* UINT8 addr_type_own */ |
| BTM_BLE_CONN_INT_MIN_DEF, /* UINT16 conn_int_min */ |
| BTM_BLE_CONN_INT_MAX_DEF, /* UINT16 conn_int_max */ |
| BTM_BLE_CONN_SLAVE_LATENCY_DEF, /* UINT16 conn_latency */ |
| BTM_BLE_CONN_TIMEOUT_DEF, /* UINT16 conn_timeout */ |
| 0, /* UINT16 min_len */ |
| 0)) /* UINT16 max_len */ |
| { |
| /* start auto connection failed */ |
| exec = FALSE; |
| p_cb->wl_state &= ~BTM_BLE_WL_INIT; |
| } |
| else |
| { |
| btm_ble_set_conn_st (BLE_BG_CONN); |
| } |
| } |
| else |
| { |
| exec = FALSE; |
| } |
| } |
| else |
| { |
| if (p_cb->conn_state == BLE_BG_CONN) |
| { |
| btsnd_hcic_ble_create_conn_cancel(); |
| btm_ble_set_conn_st (BLE_CONN_CANCEL); |
| p_cb->wl_state &= ~BTM_BLE_WL_INIT; |
| } |
| else |
| { |
| BTM_TRACE_DEBUG("conn_st = %d, not in auto conn state, cannot stop", p_cb->conn_state); |
| exec = FALSE; |
| } |
| } |
| return exec; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function btm_ble_start_select_conn |
| ** |
| ** Description This function is to start/stop selective connection procedure. |
| ** |
| ** Parameters start: TRUE to start; FALSE to stop. |
| ** p_select_cback: callback function to return application |
| ** selection. |
| ** |
| ** Returns BOOLEAN: selective connectino procedure is started. |
| ** |
| *******************************************************************************/ |
| BOOLEAN btm_ble_start_select_conn(BOOLEAN start, tBTM_BLE_SEL_CBACK *p_select_cback) |
| { |
| tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb; |
| UINT32 scan_int = p_cb->scan_int == BTM_BLE_SCAN_PARAM_UNDEF ? BTM_BLE_SCAN_FAST_INT : p_cb->scan_int; |
| UINT32 scan_win = p_cb->scan_win == BTM_BLE_SCAN_PARAM_UNDEF ? BTM_BLE_SCAN_FAST_WIN : p_cb->scan_win; |
| |
| BTM_TRACE_EVENT ("%s", __func__); |
| |
| if (start) |
| { |
| if (!BTM_BLE_IS_SCAN_ACTIVE(p_cb->scan_activity)) |
| { |
| if (p_select_cback != NULL) |
| btm_cb.ble_ctr_cb.p_select_cback = p_select_cback; |
| |
| btm_execute_wl_dev_operation(); |
| |
| btm_update_scanner_filter_policy(SP_ADV_WL); |
| btm_cb.ble_ctr_cb.inq_var.scan_type = BTM_BLE_SCAN_MODE_PASS; |
| |
| /* Process advertising packets only from devices in the white list */ |
| if (btm_cb.cmn_ble_vsc_cb.extended_scan_support == 0) |
| { |
| /* use passive scan by default */ |
| if (!btsnd_hcic_ble_set_scan_params(BTM_BLE_SCAN_MODE_PASS, |
| scan_int, |
| scan_win, |
| p_cb->addr_mgnt_cb.own_addr_type, |
| SP_ADV_WL)) |
| { |
| return FALSE; |
| } |
| } |
| else |
| { |
| if (!btm_ble_send_extended_scan_params(BTM_BLE_SCAN_MODE_PASS, |
| scan_int, |
| scan_win, |
| p_cb->addr_mgnt_cb.own_addr_type, |
| SP_ADV_WL)) |
| { |
| return FALSE; |
| } |
| } |
| |
| if (!btm_ble_topology_check(BTM_BLE_STATE_PASSIVE_SCAN)) |
| { |
| BTM_TRACE_ERROR("peripheral device cannot initiate passive scan for a selective connection"); |
| return FALSE; |
| } |
| else if (background_connections_pending()) |
| { |
| #if BLE_PRIVACY_SPT == TRUE |
| btm_ble_enable_resolving_list_for_platform(BTM_BLE_RL_SCAN); |
| #endif |
| if (!btsnd_hcic_ble_set_scan_enable(TRUE, TRUE)) /* duplicate filtering enabled */ |
| return FALSE; |
| |
| /* mark up inquiry status flag */ |
| p_cb->scan_activity |= BTM_LE_SELECT_CONN_ACTIVE; |
| p_cb->wl_state |= BTM_BLE_WL_SCAN; |
| } |
| } |
| else |
| { |
| BTM_TRACE_ERROR("scan active, can not start selective connection procedure"); |
| return FALSE; |
| } |
| } |
| else /* disable selective connection mode */ |
| { |
| p_cb->scan_activity &= ~BTM_LE_SELECT_CONN_ACTIVE; |
| p_cb->p_select_cback = NULL; |
| p_cb->wl_state &= ~BTM_BLE_WL_SCAN; |
| |
| /* stop scanning */ |
| if (!BTM_BLE_IS_SCAN_ACTIVE(p_cb->scan_activity)) |
| btm_ble_stop_scan(); /* duplicate filtering enabled */ |
| } |
| return TRUE; |
| } |
| /******************************************************************************* |
| ** |
| ** Function btm_ble_initiate_select_conn |
| ** |
| ** Description This function is to start/stop selective connection procedure. |
| ** |
| ** Parameters start: TRUE to start; FALSE to stop. |
| ** p_select_cback: callback function to return application |
| ** selection. |
| ** |
| ** Returns BOOLEAN: selective connectino procedure is started. |
| ** |
| *******************************************************************************/ |
| void btm_ble_initiate_select_conn(BD_ADDR bda) |
| { |
| BTM_TRACE_EVENT ("btm_ble_initiate_select_conn"); |
| |
| /* use direct connection procedure to initiate connection */ |
| if (!L2CA_ConnectFixedChnl(L2CAP_ATT_CID, bda)) |
| { |
| BTM_TRACE_ERROR("btm_ble_initiate_select_conn failed"); |
| } |
| } |
| /******************************************************************************* |
| ** |
| ** Function btm_ble_suspend_bg_conn |
| ** |
| ** Description This function is to suspend an active background connection |
| ** procedure. |
| ** |
| ** Parameters none. |
| ** |
| ** Returns none. |
| ** |
| *******************************************************************************/ |
| BOOLEAN btm_ble_suspend_bg_conn(void) |
| { |
| BTM_TRACE_EVENT ("%s", __func__); |
| |
| if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_AUTO) |
| return btm_ble_start_auto_conn(FALSE); |
| else if (btm_cb.ble_ctr_cb.bg_conn_type == BTM_BLE_CONN_SELECTIVE) |
| return btm_ble_start_select_conn(FALSE, NULL); |
| |
| return FALSE; |
| } |
| /******************************************************************************* |
| ** |
| ** Function btm_suspend_wl_activity |
| ** |
| ** Description This function is to suspend white list related activity |
| ** |
| ** Returns none. |
| ** |
| *******************************************************************************/ |
| static void btm_suspend_wl_activity(tBTM_BLE_WL_STATE wl_state) |
| { |
| if (wl_state & BTM_BLE_WL_INIT) |
| { |
| btm_ble_start_auto_conn(FALSE); |
| } |
| if (wl_state & BTM_BLE_WL_SCAN) |
| { |
| btm_ble_start_select_conn(FALSE, NULL); |
| } |
| if (wl_state & BTM_BLE_WL_ADV) |
| { |
| btm_ble_stop_adv(); |
| } |
| |
| } |
| /******************************************************************************* |
| ** |
| ** Function btm_resume_wl_activity |
| ** |
| ** Description This function is to resume white list related activity |
| ** |
| ** Returns none. |
| ** |
| *******************************************************************************/ |
| static void btm_resume_wl_activity(tBTM_BLE_WL_STATE wl_state) |
| { |
| btm_ble_resume_bg_conn(); |
| |
| if (wl_state & BTM_BLE_WL_ADV) |
| { |
| btm_ble_start_adv(); |
| } |
| |
| } |
| /******************************************************************************* |
| ** |
| ** Function btm_ble_resume_bg_conn |
| ** |
| ** Description This function is to resume a background auto connection |
| ** procedure. |
| ** |
| ** Parameters none. |
| ** |
| ** Returns none. |
| ** |
| *******************************************************************************/ |
| BOOLEAN btm_ble_resume_bg_conn(void) |
| { |
| tBTM_BLE_CB *p_cb = &btm_cb.ble_ctr_cb; |
| BOOLEAN ret = FALSE; |
| |
| if (p_cb->bg_conn_type != BTM_BLE_CONN_NONE) |
| { |
| if (p_cb->bg_conn_type == BTM_BLE_CONN_AUTO) |
| ret = btm_ble_start_auto_conn(TRUE); |
| |
| if (p_cb->bg_conn_type == BTM_BLE_CONN_SELECTIVE) |
| ret = btm_ble_start_select_conn(TRUE, btm_cb.ble_ctr_cb.p_select_cback); |
| } |
| |
| return ret; |
| } |
| /******************************************************************************* |
| ** |
| ** Function btm_ble_get_conn_st |
| ** |
| ** Description This function get BLE connection state |
| ** |
| ** Returns connection state |
| ** |
| *******************************************************************************/ |
| tBTM_BLE_CONN_ST btm_ble_get_conn_st(void) |
| { |
| return btm_cb.ble_ctr_cb.conn_state; |
| } |
| /******************************************************************************* |
| ** |
| ** Function btm_ble_set_conn_st |
| ** |
| ** Description This function set BLE connection state |
| ** |
| ** Returns None. |
| ** |
| *******************************************************************************/ |
| void btm_ble_set_conn_st(tBTM_BLE_CONN_ST new_st) |
| { |
| btm_cb.ble_ctr_cb.conn_state = new_st; |
| |
| if (new_st == BLE_BG_CONN || new_st == BLE_DIR_CONN) |
| btm_ble_set_topology_mask(BTM_BLE_STATE_INIT_BIT); |
| else |
| btm_ble_clear_topology_mask(BTM_BLE_STATE_INIT_BIT); |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function btm_ble_enqueue_direct_conn_req |
| ** |
| ** Description This function enqueue the direct connection request |
| ** |
| ** Returns None. |
| ** |
| *******************************************************************************/ |
| void btm_ble_enqueue_direct_conn_req(void *p_param) |
| { |
| tBTM_BLE_CONN_REQ *p = (tBTM_BLE_CONN_REQ *)osi_getbuf(sizeof(tBTM_BLE_CONN_REQ)); |
| |
| p->p_param = p_param; |
| |
| fixed_queue_enqueue(btm_cb.ble_ctr_cb.conn_pending_q, p); |
| } |
| /******************************************************************************* |
| ** |
| ** Function btm_send_pending_direct_conn |
| ** |
| ** Description This function send the pending direct connection request in queue |
| ** |
| ** Returns TRUE if started, FALSE otherwise |
| ** |
| *******************************************************************************/ |
| BOOLEAN btm_send_pending_direct_conn(void) |
| { |
| tBTM_BLE_CONN_REQ *p_req; |
| BOOLEAN rt = FALSE; |
| |
| p_req = (tBTM_BLE_CONN_REQ*)fixed_queue_try_dequeue(btm_cb.ble_ctr_cb.conn_pending_q); |
| if (p_req != NULL) |
| { |
| rt = l2cble_init_direct_conn((tL2C_LCB *)(p_req->p_param)); |
| osi_freebuf((void *)p_req); |
| } |
| |
| return rt; |
| } |
| |
| #endif |
| |
| |
