| /****************************************************************************** |
| * |
| * 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. |
| * |
| ******************************************************************************/ |
| |
| #define LOG_TAG "bt_btm_ble" |
| |
| #include <base/bind.h> |
| #include <base/callback.h> |
| #include <base/strings/string_number_conversions.h> |
| #include <stddef.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <list> |
| #include <vector> |
| |
| #include "bt_types.h" |
| #include "bt_utils.h" |
| #include "btm_ble_api.h" |
| #include "btm_int.h" |
| #include "btu.h" |
| #include "device/include/controller.h" |
| #include "gap_api.h" |
| #include "hcimsgs.h" |
| #include "osi/include/osi.h" |
| |
| #include "advertise_data_parser.h" |
| #include "btm_ble_int.h" |
| #include "gatt_int.h" |
| #include "gattdefs.h" |
| #include "l2c_int.h" |
| #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_MS (30 * 1000) |
| #define MIN_ADV_LENGTH 2 |
| #define BTM_VSC_CHIP_CAPABILITY_RSP_LEN_L_RELEASE 9 |
| |
| namespace { |
| |
| class AdvertisingCache { |
| public: |
| /* Set the data to |data| for device |addr_type, addr| */ |
| const std::vector<uint8_t>& Set(uint8_t addr_type, const RawAddress& addr, |
| std::vector<uint8_t> data) { |
| auto it = Find(addr_type, addr); |
| if (it != items.end()) { |
| it->data = std::move(data); |
| return it->data; |
| } |
| |
| if (items.size() > cache_max) { |
| items.pop_back(); |
| } |
| |
| items.emplace_front(addr_type, addr, std::move(data)); |
| return items.front().data; |
| } |
| |
| /* Append |data| for device |addr_type, addr| */ |
| const std::vector<uint8_t>& Append(uint8_t addr_type, const RawAddress& addr, |
| std::vector<uint8_t> data) { |
| auto it = Find(addr_type, addr); |
| if (it != items.end()) { |
| it->data.insert(it->data.end(), data.begin(), data.end()); |
| return it->data; |
| } |
| |
| if (items.size() > cache_max) { |
| items.pop_back(); |
| } |
| |
| items.emplace_front(addr_type, addr, std::move(data)); |
| return items.front().data; |
| } |
| |
| /* Clear data for device |addr_type, addr| */ |
| void Clear(uint8_t addr_type, const RawAddress& addr) { |
| auto it = Find(addr_type, addr); |
| if (it != items.end()) { |
| items.erase(it); |
| } |
| } |
| |
| private: |
| struct Item { |
| uint8_t addr_type; |
| RawAddress addr; |
| std::vector<uint8_t> data; |
| |
| Item(uint8_t addr_type, const RawAddress& addr, std::vector<uint8_t> data) |
| : addr_type(addr_type), addr(addr), data(data) {} |
| }; |
| |
| std::list<Item>::iterator Find(uint8_t addr_type, const RawAddress& addr) { |
| for (auto it = items.begin(); it != items.end(); it++) { |
| if (it->addr_type == addr_type && it->addr == addr) { |
| return it; |
| } |
| } |
| return items.end(); |
| } |
| |
| /* we keep maximum 7 devices in the cache */ |
| const size_t cache_max = 7; |
| std::list<Item> items; |
| }; |
| |
| /* Devices in this cache are waiting for eiter scan response, or chained packets |
| * on secondary channel */ |
| AdvertisingCache cache; |
| |
| } // namespace |
| |
| #if (BLE_VND_INCLUDED == TRUE) |
| static tBTM_BLE_CTRL_FEATURES_CBACK* p_ctrl_le_feature_rd_cmpl_cback = NULL; |
| #endif |
| |
| /******************************************************************************* |
| * Local functions |
| ******************************************************************************/ |
| static void btm_ble_update_adv_flag(uint8_t flag); |
| static void btm_ble_process_adv_pkt_cont( |
| uint16_t evt_type, uint8_t addr_type, const RawAddress& bda, |
| uint8_t primary_phy, uint8_t secondary_phy, uint8_t advertising_sid, |
| int8_t tx_power, int8_t rssi, uint16_t periodic_adv_int, uint8_t data_len, |
| uint8_t* data); |
| static uint8_t btm_set_conn_mode_adv_init_addr(tBTM_BLE_INQ_CB* p_cb, |
| RawAddress& 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_fast_adv_timer_timeout(void* data); |
| static void btm_ble_start_slow_adv(void); |
| static void btm_ble_inquiry_timer_gap_limited_discovery_timeout(void* data); |
| static void btm_ble_inquiry_timer_timeout(void* data); |
| static void btm_ble_observer_timer_timeout(void* data); |
| |
| #define BTM_BLE_INQ_RESULT 0x01 |
| #define BTM_BLE_OBS_RESULT 0x02 |
| |
| bool ble_evt_type_is_connectable(uint16_t evt_type) { |
| return evt_type & (1 << BLE_EVT_CONNECTABLE_BIT); |
| } |
| |
| bool ble_evt_type_is_scannable(uint16_t evt_type) { |
| return evt_type & (1 << BLE_EVT_SCANNABLE_BIT); |
| } |
| |
| bool ble_evt_type_is_directed(uint16_t evt_type) { |
| return evt_type & (1 << BLE_EVT_DIRECTED_BIT); |
| } |
| |
| bool ble_evt_type_is_scan_resp(uint16_t evt_type) { |
| return evt_type & (1 << BLE_EVT_SCAN_RESPONSE_BIT); |
| } |
| |
| bool ble_evt_type_is_legacy(uint16_t evt_type) { |
| return evt_type & (1 << BLE_EVT_LEGACY_BIT); |
| } |
| |
| uint8_t ble_evt_type_data_status(uint16_t evt_type) { |
| return (evt_type >> 5) & 3; |
| } |
| |
| constexpr uint8_t UNSUPPORTED = 255; |
| |
| /* LE states combo bit to check */ |
| const uint8_t btm_le_state_combo_tbl[BTM_BLE_STATE_MAX][BTM_BLE_STATE_MAX] = { |
| { |
| /* single state support */ |
| HCI_LE_STATES_CONN_ADV_BIT, /* conn_adv */ |
| HCI_LE_STATES_INIT_BIT, /* init */ |
| HCI_LE_STATES_INIT_BIT, /* master */ |
| HCI_LE_STATES_SLAVE_BIT, /* slave */ |
| UNSUPPORTED, /* todo: lo du dir adv, not covered ? */ |
| HCI_LE_STATES_HI_DUTY_DIR_ADV_BIT, /* hi duty dir adv */ |
| HCI_LE_STATES_NON_CONN_ADV_BIT, /* non connectable adv */ |
| HCI_LE_STATES_PASS_SCAN_BIT, /* passive scan */ |
| HCI_LE_STATES_ACTIVE_SCAN_BIT, /* active scan */ |
| HCI_LE_STATES_SCAN_ADV_BIT /* scanable adv */ |
| }, |
| { |
| /* conn_adv =0 */ |
| UNSUPPORTED, /* conn_adv */ |
| HCI_LE_STATES_CONN_ADV_INIT_BIT, /* init: 32 */ |
| HCI_LE_STATES_CONN_ADV_MASTER_BIT, /* master: 35 */ |
| HCI_LE_STATES_CONN_ADV_SLAVE_BIT, /* slave: 38,*/ |
| UNSUPPORTED, /* lo du dir adv */ |
| UNSUPPORTED, /* hi duty dir adv */ |
| UNSUPPORTED, /* non connectable adv */ |
| HCI_LE_STATES_CONN_ADV_PASS_SCAN_BIT, /* passive scan */ |
| HCI_LE_STATES_CONN_ADV_ACTIVE_SCAN_BIT, /* active scan */ |
| UNSUPPORTED /* scanable adv */ |
| }, |
| { |
| /* init */ |
| HCI_LE_STATES_CONN_ADV_INIT_BIT, /* conn_adv: 32 */ |
| UNSUPPORTED, /* init */ |
| HCI_LE_STATES_INIT_MASTER_BIT, /* master 28 */ |
| HCI_LE_STATES_INIT_MASTER_SLAVE_BIT, /* slave 41 */ |
| HCI_LE_STATES_LO_DUTY_DIR_ADV_INIT_BIT, /* lo du dir adv 34 */ |
| HCI_LE_STATES_HI_DUTY_DIR_ADV_INIT_BIT, /* hi duty dir adv 33 */ |
| HCI_LE_STATES_NON_CONN_INIT_BIT, /* non connectable adv */ |
| HCI_LE_STATES_PASS_SCAN_INIT_BIT, /* passive scan */ |
| HCI_LE_STATES_ACTIVE_SCAN_INIT_BIT, /* active scan */ |
| HCI_LE_STATES_SCAN_ADV_INIT_BIT /* scanable adv */ |
| |
| }, |
| { |
| /* master */ |
| HCI_LE_STATES_CONN_ADV_MASTER_BIT, /* conn_adv: 35 */ |
| HCI_LE_STATES_INIT_MASTER_BIT, /* init 28 */ |
| HCI_LE_STATES_INIT_MASTER_BIT, /* master 28 */ |
| HCI_LE_STATES_CONN_ADV_INIT_BIT, /* slave: 32 */ |
| HCI_LE_STATES_LO_DUTY_DIR_ADV_MASTER_BIT, /* lo duty cycle adv 37 */ |
| HCI_LE_STATES_HI_DUTY_DIR_ADV_MASTER_BIT, /* hi duty cycle adv 36 */ |
| HCI_LE_STATES_NON_CONN_ADV_MASTER_BIT, /* non connectable adv*/ |
| HCI_LE_STATES_PASS_SCAN_MASTER_BIT, /* passive scan */ |
| HCI_LE_STATES_ACTIVE_SCAN_MASTER_BIT, /* active scan */ |
| HCI_LE_STATES_SCAN_ADV_MASTER_BIT /* scanable adv */ |
| |
| }, |
| { |
| /* slave */ |
| HCI_LE_STATES_CONN_ADV_SLAVE_BIT, /* conn_adv: 38,*/ |
| HCI_LE_STATES_INIT_MASTER_SLAVE_BIT, /* init 41 */ |
| HCI_LE_STATES_INIT_MASTER_SLAVE_BIT, /* master 41 */ |
| HCI_LE_STATES_CONN_ADV_SLAVE_BIT, /* slave: 38,*/ |
| HCI_LE_STATES_LO_DUTY_DIR_ADV_SLAVE_BIT, /* lo duty cycle adv 40 */ |
| HCI_LE_STATES_HI_DUTY_DIR_ADV_SLAVE_BIT, /* hi duty cycle adv 39 */ |
| HCI_LE_STATES_NON_CONN_ADV_SLAVE_BIT, /* non connectable adv */ |
| HCI_LE_STATES_PASS_SCAN_SLAVE_BIT, /* passive scan */ |
| HCI_LE_STATES_ACTIVE_SCAN_SLAVE_BIT, /* active scan */ |
| HCI_LE_STATES_SCAN_ADV_SLAVE_BIT /* scanable adv */ |
| |
| }, |
| { |
| /* lo duty cycle adv */ |
| UNSUPPORTED, /* conn_adv: 38,*/ |
| HCI_LE_STATES_LO_DUTY_DIR_ADV_INIT_BIT, /* init 34 */ |
| HCI_LE_STATES_LO_DUTY_DIR_ADV_MASTER_BIT, /* master 37 */ |
| HCI_LE_STATES_LO_DUTY_DIR_ADV_SLAVE_BIT, /* slave: 40 */ |
| UNSUPPORTED, /* lo duty cycle adv 40 */ |
| UNSUPPORTED, /* hi duty cycle adv 39 */ |
| UNSUPPORTED, /* non connectable adv */ |
| UNSUPPORTED, /* TODO: passive scan, not covered? */ |
| UNSUPPORTED, /* TODO: active scan, not covered? */ |
| UNSUPPORTED /* scanable adv */ |
| }, |
| { |
| /* hi duty cycle adv */ |
| UNSUPPORTED, /* conn_adv: 38,*/ |
| HCI_LE_STATES_HI_DUTY_DIR_ADV_INIT_BIT, /* init 33 */ |
| HCI_LE_STATES_HI_DUTY_DIR_ADV_MASTER_BIT, /* master 36 */ |
| HCI_LE_STATES_HI_DUTY_DIR_ADV_SLAVE_BIT, /* slave: 39*/ |
| UNSUPPORTED, /* lo duty cycle adv 40 */ |
| UNSUPPORTED, /* hi duty cycle adv 39 */ |
| UNSUPPORTED, /* non connectable adv */ |
| HCI_LE_STATES_HI_DUTY_DIR_ADV_PASS_SCAN_BIT, /* passive scan */ |
| HCI_LE_STATES_HI_DUTY_DIR_ADV_ACTIVE_SCAN_BIT, /* active scan */ |
| UNSUPPORTED /* scanable adv */ |
| }, |
| { |
| /* non connectable adv */ |
| UNSUPPORTED, /* conn_adv: */ |
| HCI_LE_STATES_NON_CONN_INIT_BIT, /* init */ |
| HCI_LE_STATES_NON_CONN_ADV_MASTER_BIT, /* master */ |
| HCI_LE_STATES_NON_CONN_ADV_SLAVE_BIT, /* slave: */ |
| UNSUPPORTED, /* lo duty cycle adv */ |
| UNSUPPORTED, /* hi duty cycle adv */ |
| UNSUPPORTED, /* non connectable adv */ |
| HCI_LE_STATES_NON_CONN_ADV_PASS_SCAN_BIT, /* passive scan */ |
| HCI_LE_STATES_NON_CONN_ADV_ACTIVE_SCAN_BIT, /* active scan */ |
| UNSUPPORTED /* scanable adv */ |
| }, |
| { |
| /* passive scan */ |
| HCI_LE_STATES_CONN_ADV_PASS_SCAN_BIT, /* conn_adv: */ |
| HCI_LE_STATES_PASS_SCAN_INIT_BIT, /* init */ |
| HCI_LE_STATES_PASS_SCAN_MASTER_BIT, /* master */ |
| HCI_LE_STATES_PASS_SCAN_SLAVE_BIT, /* slave: */ |
| UNSUPPORTED, /* lo duty cycle adv */ |
| HCI_LE_STATES_HI_DUTY_DIR_ADV_PASS_SCAN_BIT, /* hi duty cycle adv */ |
| HCI_LE_STATES_NON_CONN_ADV_PASS_SCAN_BIT, /* non connectable adv */ |
| UNSUPPORTED, /* passive scan */ |
| UNSUPPORTED, /* active scan */ |
| HCI_LE_STATES_SCAN_ADV_PASS_SCAN_BIT /* scanable adv */ |
| }, |
| { |
| /* active scan */ |
| HCI_LE_STATES_CONN_ADV_ACTIVE_SCAN_BIT, /* conn_adv: */ |
| HCI_LE_STATES_ACTIVE_SCAN_INIT_BIT, /* init */ |
| HCI_LE_STATES_ACTIVE_SCAN_MASTER_BIT, /* master */ |
| HCI_LE_STATES_ACTIVE_SCAN_SLAVE_BIT, /* slave: */ |
| UNSUPPORTED, /* lo duty cycle adv */ |
| HCI_LE_STATES_HI_DUTY_DIR_ADV_ACTIVE_SCAN_BIT, /* hi duty cycle adv */ |
| HCI_LE_STATES_NON_CONN_ADV_ACTIVE_SCAN_BIT, /* non connectable adv */ |
| UNSUPPORTED, /* TODO: passive scan */ |
| UNSUPPORTED, /* TODO: active scan */ |
| HCI_LE_STATES_SCAN_ADV_ACTIVE_SCAN_BIT /* scanable adv */ |
| }, |
| { |
| /* scanable adv */ |
| UNSUPPORTED, /* conn_adv: */ |
| HCI_LE_STATES_SCAN_ADV_INIT_BIT, /* init */ |
| HCI_LE_STATES_SCAN_ADV_MASTER_BIT, /* master */ |
| HCI_LE_STATES_SCAN_ADV_SLAVE_BIT, /* slave: */ |
| UNSUPPORTED, /* lo duty cycle adv */ |
| UNSUPPORTED, /* hi duty cycle adv */ |
| UNSUPPORTED, /* non connectable adv */ |
| HCI_LE_STATES_SCAN_ADV_PASS_SCAN_BIT, /* passive scan */ |
| HCI_LE_STATES_SCAN_ADV_ACTIVE_SCAN_BIT, /* active scan */ |
| UNSUPPORTED /* scanable adv */ |
| }}; |
| |
| /* check LE combo state supported */ |
| inline bool BTM_LE_STATES_SUPPORTED(const uint8_t* x, uint8_t bit_num) { |
| uint8_t mask = 1 << (bit_num % 8); |
| uint8_t offset = bit_num / 8; |
| return ((x)[offset] & mask); |
| } |
| |
| /******************************************************************************* |
| * |
| * 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; |
| RawAddress adv_address = RawAddress::kEmpty; |
| uint8_t adv_mode = p_cb->adv_mode; |
| |
| BTM_TRACE_EVENT("BTM_BleUpdateAdvFilterPolicy"); |
| |
| 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, adv_address, &init_addr_type, &p_cb->adv_addr_type); |
| |
| btsnd_hcic_ble_write_adv_params( |
| (uint16_t)(p_cb->adv_interval_min ? p_cb->adv_interval_min |
| : BTM_BLE_GAP_ADV_SLOW_INT), |
| (uint16_t)(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, adv_address, |
| p_cb->adv_chnl_map, p_cb->afp); |
| |
| if (adv_mode == BTM_BLE_ADV_ENABLE) btm_ble_start_adv(); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * 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(bool start, uint8_t 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_t scan_interval = |
| !p_inq->scan_interval ? BTM_BLE_GAP_DISC_SCAN_INT : p_inq->scan_interval; |
| uint32_t 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", __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 |
| |
| btm_send_hci_set_scan_params( |
| p_inq->scan_type, (uint16_t)scan_interval, (uint16_t)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 */ |
| period_ms_t duration_ms = duration * 1000; |
| alarm_set_on_mloop(btm_cb.ble_ctr_cb.observer_timer, duration_ms, |
| btm_ble_observer_timer_timeout, NULL); |
| } |
| } |
| } 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", __func__); |
| } |
| |
| 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_t status = 0xFF; |
| uint8_t* 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); |
| |
| btm_ble_adv_init(); |
| |
| if (btm_cb.cmn_ble_vsc_cb.max_filter > 0) btm_ble_adv_filter_init(); |
| |
| #if (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 /* (BLE_PRIVACY_SPT == TRUE) */ |
| |
| 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 /* (BLE_VND_INCLUDED == TRUE) */ |
| |
| /******************************************************************************* |
| * |
| * 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 |
| * |
| ******************************************************************************/ |
| #if (BLE_VND_INCLUDED == TRUE) |
| extern void BTM_BleReadControllerFeatures( |
| tBTM_BLE_CTRL_FEATURES_CBACK* p_vsc_cback) { |
| if (true == btm_cb.cmn_ble_vsc_cb.values_read) return; |
| |
| BTM_TRACE_DEBUG("BTM_BleReadControllerFeatures"); |
| |
| p_ctrl_le_feature_rd_cmpl_cback = p_vsc_cback; |
| BTM_VendorSpecificCommand(HCI_BLE_VENDOR_CAP_OCF, 0, NULL, |
| btm_ble_vendor_capability_vsc_cmpl_cback); |
| } |
| #else |
| extern void BTM_BleReadControllerFeatures( |
| UNUSED_ATTR tBTM_BLE_CTRL_FEATURES_CBACK* p_vsc_cback) {} |
| #endif |
| |
| /******************************************************************************* |
| * |
| * 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(bool 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 bool privacy mode set success; otherwise failed. |
| * |
| ******************************************************************************/ |
| bool BTM_BleConfigPrivacy(bool privacy_mode) { |
| #if (BLE_PRIVACY_SPT == TRUE) |
| tBTM_BLE_CB* p_cb = &btm_cb.ble_ctr_cb; |
| |
| BTM_TRACE_EVENT("%s", __func__); |
| |
| /* if LE is not supported, return error */ |
| if (!controller_get_interface()->supports_ble()) return false; |
| |
| uint8_t addr_resolution = 0; |
| 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; |
| } 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(base::Bind(&btm_gen_resolve_paddr_low)); |
| |
| /* 4.2 controller only allow privacy 1.2 or mixed mode, resolvable private |
| * address in controller */ |
| if (controller_get_interface()->supports_ble_privacy()) { |
| addr_resolution = 1; |
| /* 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; |
| } |
| |
| GAP_BleAttrDBUpdate(GATT_UUID_GAP_CENTRAL_ADDR_RESOL, |
| (tGAP_BLE_ATTR_VALUE*)&addr_resolution); |
| |
| 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_t 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; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_BleLocalPrivacyEnabled |
| * |
| * Description Checks if local device supports private address |
| * |
| * Returns Return true if local privacy is enabled else false |
| * |
| ******************************************************************************/ |
| bool BTM_BleLocalPrivacyEnabled(void) { |
| #if (BLE_PRIVACY_SPT == TRUE) |
| return (btm_cb.ble_ctr_cb.privacy_mode != BTM_PRIVACY_NONE); |
| #else |
| return false; |
| #endif |
| } |
| |
| /** |
| * Set BLE connectable mode to auto connect |
| */ |
| void BTM_BleStartAutoConn() { |
| BTM_TRACE_EVENT("%s", __func__); |
| if (!controller_get_interface()->supports_ble()) return; |
| |
| if (btm_cb.ble_ctr_cb.bg_conn_type != BTM_BLE_CONN_AUTO) { |
| btm_ble_start_auto_conn(true); |
| btm_cb.ble_ctr_cb.bg_conn_type = BTM_BLE_CONN_AUTO; |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * 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 |
| * |
| ******************************************************************************/ |
| bool BTM_BleUpdateBgConnDev(bool add_remove, const RawAddress& remote_bda) { |
| BTM_TRACE_EVENT("%s() add=%d", __func__, add_remove); |
| return btm_update_dev_to_white_list(add_remove, remote_bda); |
| } |
| |
| /******************************************************************************* |
| * |
| * 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; |
| |
| BTM_TRACE_EVENT("%s connectable_mode = %d ", __func__, connectable_mode); |
| if (!controller_get_interface()->supports_ble()) return BTM_ILLEGAL_VALUE; |
| |
| p_cb->directed_conn = connectable_mode; |
| return btm_ble_set_connectability(p_cb->connectable_mode); |
| } |
| |
| #if (BLE_PRIVACY_SPT == TRUE) |
| static bool is_resolving_list_bit_set(void* data, void* context) { |
| tBTM_SEC_DEV_REC* p_dev_rec = static_cast<tBTM_SEC_DEV_REC*>(data); |
| |
| if ((p_dev_rec->ble.in_controller_list & BTM_RESOLVING_LIST_BIT) != 0) |
| return false; |
| |
| return true; |
| } |
| #endif |
| |
| /******************************************************************************* |
| * |
| * Function btm_set_conn_mode_adv_init_addr |
| * |
| * Description set initator address type and local address type based on |
| * adv mode. |
| * |
| * |
| ******************************************************************************/ |
| static uint8_t btm_set_conn_mode_adv_init_addr( |
| tBTM_BLE_INQ_CB* p_cb, RawAddress& p_peer_addr_ptr, |
| tBLE_ADDR_TYPE* p_peer_addr_type, tBLE_ADDR_TYPE* p_own_addr_type) { |
| uint8_t evt_type; |
| #if (BLE_PRIVACY_SPT == TRUE) |
| tBTM_SEC_DEV_REC* p_dev_rec; |
| #endif |
| |
| evt_type = |
| (p_cb->connectable_mode == BTM_BLE_NON_CONNECTABLE) |
| ? ((p_cb->scan_rsp) ? BTM_BLE_DISCOVER_EVT : BTM_BLE_NON_CONNECT_EVT) |
| : BTM_BLE_CONNECT_EVT; |
| |
| if (evt_type == BTM_BLE_CONNECT_EVT) { |
| evt_type = p_cb->directed_conn; |
| |
| if (p_cb->directed_conn == BTM_BLE_CONNECT_DIR_EVT || |
| p_cb->directed_conn == BTM_BLE_CONNECT_LO_DUTY_DIR_EVT) { |
| #if (BLE_PRIVACY_SPT == TRUE) |
| /* for privacy 1.2, convert peer address as static, own address set as ID |
| * addr */ |
| if (btm_cb.ble_ctr_cb.privacy_mode == BTM_PRIVACY_1_2 || |
| btm_cb.ble_ctr_cb.privacy_mode == BTM_PRIVACY_MIXED) { |
| /* only do so for bonded device */ |
| if ((p_dev_rec = btm_find_or_alloc_dev(p_cb->direct_bda.bda)) != NULL && |
| p_dev_rec->ble.in_controller_list & BTM_RESOLVING_LIST_BIT) { |
| btm_ble_enable_resolving_list(BTM_BLE_RL_ADV); |
| p_peer_addr_ptr = p_dev_rec->ble.static_addr; |
| *p_peer_addr_type = p_dev_rec->ble.static_addr_type; |
| *p_own_addr_type = BLE_ADDR_RANDOM_ID; |
| return evt_type; |
| } |
| /* otherwise fall though as normal directed adv */ |
| else { |
| btm_ble_disable_resolving_list(BTM_BLE_RL_ADV, true); |
| } |
| } |
| #endif |
| /* direct adv mode does not have privacy, if privacy is not enabled */ |
| *p_peer_addr_type = p_cb->direct_bda.type; |
| p_peer_addr_ptr = p_cb->direct_bda.bda; |
| return evt_type; |
| } |
| } |
| |
| /* undirect adv mode or non-connectable mode*/ |
| #if (BLE_PRIVACY_SPT == TRUE) |
| /* when privacy 1.2 privacy only mode is used, or mixed mode */ |
| if ((btm_cb.ble_ctr_cb.privacy_mode == BTM_PRIVACY_1_2 && |
| p_cb->afp != AP_SCAN_CONN_ALL) || |
| btm_cb.ble_ctr_cb.privacy_mode == BTM_PRIVACY_MIXED) { |
| list_node_t* n = |
| list_foreach(btm_cb.sec_dev_rec, is_resolving_list_bit_set, NULL); |
| if (n) { |
| /* if enhanced privacy is required, set Identity address and matching IRK |
| * peer */ |
| tBTM_SEC_DEV_REC* p_dev_rec = |
| static_cast<tBTM_SEC_DEV_REC*>(list_node(n)); |
| p_peer_addr_ptr = p_dev_rec->ble.static_addr; |
| *p_peer_addr_type = p_dev_rec->ble.static_addr_type; |
| |
| *p_own_addr_type = BLE_ADDR_RANDOM_ID; |
| } else { |
| /* resolving list is empty, not enabled */ |
| *p_own_addr_type = BLE_ADDR_RANDOM; |
| } |
| } |
| /* privacy 1.1, or privacy 1.2, general discoverable/connectable mode, disable |
| privacy in */ |
| /* controller fall back to host based privacy */ |
| else if (btm_cb.ble_ctr_cb.privacy_mode != BTM_PRIVACY_NONE) { |
| *p_own_addr_type = BLE_ADDR_RANDOM; |
| } |
| #endif |
| |
| /* if no privacy,do not set any peer address,*/ |
| /* local address type go by global privacy setting */ |
| return evt_type; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_BleSetAdvParams |
| * |
| * Description This function is called to set advertising parameters. |
| * |
| * Parameters adv_int_min: minimum advertising interval |
| * adv_int_max: maximum advertising interval |
| * p_dir_bda: connectable direct initiator's LE device address |
| * chnl_map: advertising channel map. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| tBTM_STATUS BTM_BleSetAdvParams(uint16_t adv_int_min, uint16_t adv_int_max, |
| const RawAddress& p_dir_bda, |
| tBTM_BLE_ADV_CHNL_MAP chnl_map) { |
| 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; |
| tBTM_STATUS status = BTM_SUCCESS; |
| RawAddress address = RawAddress::kEmpty; |
| tBLE_ADDR_TYPE init_addr_type = BLE_ADDR_PUBLIC; |
| tBLE_ADDR_TYPE own_addr_type = p_addr_cb->own_addr_type; |
| uint8_t adv_mode = p_cb->adv_mode; |
| |
| BTM_TRACE_EVENT("BTM_BleSetAdvParams"); |
| |
| if (!controller_get_interface()->supports_ble()) return BTM_ILLEGAL_VALUE; |
| |
| if (!BTM_BLE_ISVALID_PARAM(adv_int_min, BTM_BLE_ADV_INT_MIN, |
| BTM_BLE_ADV_INT_MAX) || |
| !BTM_BLE_ISVALID_PARAM(adv_int_max, BTM_BLE_ADV_INT_MIN, |
| BTM_BLE_ADV_INT_MAX)) { |
| return BTM_ILLEGAL_VALUE; |
| } |
| |
| p_cb->adv_interval_min = adv_int_min; |
| p_cb->adv_interval_max = adv_int_max; |
| p_cb->adv_chnl_map = chnl_map; |
| p_cb->direct_bda.bda = p_dir_bda; |
| |
| BTM_TRACE_EVENT("update params for an active adv"); |
| |
| btm_ble_stop_adv(); |
| |
| p_cb->evt_type = btm_set_conn_mode_adv_init_addr( |
| p_cb, address, &init_addr_type, &own_addr_type); |
| |
| /* update adv params */ |
| btsnd_hcic_ble_write_adv_params( |
| p_cb->adv_interval_min, p_cb->adv_interval_max, p_cb->evt_type, |
| own_addr_type, init_addr_type, address, p_cb->adv_chnl_map, p_cb->afp); |
| |
| if (adv_mode == BTM_BLE_ADV_ENABLE) btm_ble_start_adv(); |
| |
| return status; |
| } |
| |
| /** |
| * This function is called to set scan parameters. |cb| is called with operation |
| * status |
| **/ |
| void BTM_BleSetScanParams(uint32_t scan_interval, uint32_t scan_window, |
| tBLE_SCAN_MODE scan_mode, |
| base::Callback<void(uint8_t)> cb) { |
| tBTM_BLE_INQ_CB* p_cb = &btm_cb.ble_ctr_cb.inq_var; |
| uint32_t max_scan_interval; |
| uint32_t max_scan_window; |
| |
| BTM_TRACE_EVENT("%s", __func__); |
| if (!controller_get_interface()->supports_ble()) return; |
| |
| /* If not supporting extended scan support, use the older range for checking |
| */ |
| if (btm_cb.cmn_ble_vsc_cb.extended_scan_support == 0) { |
| max_scan_interval = BTM_BLE_SCAN_INT_MAX; |
| max_scan_window = BTM_BLE_SCAN_WIN_MAX; |
| } else { |
| /* If supporting extended scan support, use the new extended range for |
| * checking */ |
| max_scan_interval = BTM_BLE_EXT_SCAN_INT_MAX; |
| max_scan_window = BTM_BLE_EXT_SCAN_WIN_MAX; |
| } |
| |
| if (BTM_BLE_ISVALID_PARAM(scan_interval, BTM_BLE_SCAN_INT_MIN, |
| max_scan_interval) && |
| BTM_BLE_ISVALID_PARAM(scan_window, BTM_BLE_SCAN_WIN_MIN, |
| max_scan_window) && |
| (scan_mode == BTM_BLE_SCAN_MODE_ACTI || |
| scan_mode == BTM_BLE_SCAN_MODE_PASS)) { |
| p_cb->scan_type = scan_mode; |
| p_cb->scan_interval = scan_interval; |
| p_cb->scan_window = scan_window; |
| |
| cb.Run(BTM_SUCCESS); |
| } else { |
| cb.Run(BTM_ILLEGAL_VALUE); |
| |
| BTM_TRACE_ERROR("Illegal params: scan_interval = %d scan_window = %d", |
| scan_interval, scan_window); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM_BleWriteScanRsp |
| * |
| * Description This function is called to write LE scan response. |
| * |
| * Parameters: p_scan_rsp: scan response information. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void BTM_BleWriteScanRsp(uint8_t* data, uint8_t length, |
| tBTM_BLE_ADV_DATA_CMPL_CBACK* p_adv_data_cback) { |
| BTM_TRACE_EVENT("%s: length: %d", __func__, length); |
| if (!controller_get_interface()->supports_ble()) { |
| p_adv_data_cback(BTM_ILLEGAL_VALUE); |
| return; |
| } |
| |
| btsnd_hcic_ble_set_scan_rsp_data(length, data); |
| |
| if (length != 0) |
| btm_cb.ble_ctr_cb.inq_var.scan_rsp = true; |
| else |
| btm_cb.ble_ctr_cb.inq_var.scan_rsp = false; |
| |
| p_adv_data_cback(BTM_SUCCESS); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM__BLEReadDiscoverability |
| * |
| * Description This function is called to read the current LE |
| * discoverability mode of the device. |
| * |
| * Returns BTM_BLE_NON_DISCOVERABLE ,BTM_BLE_LIMITED_DISCOVERABLE or |
| * BTM_BLE_GENRAL_DISCOVERABLE |
| * |
| ******************************************************************************/ |
| uint16_t BTM_BleReadDiscoverability() { |
| BTM_TRACE_API("%s", __func__); |
| |
| return (btm_cb.ble_ctr_cb.inq_var.discoverable_mode); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function BTM__BLEReadConnectability |
| * |
| * Description This function is called to read the current LE |
| * connectability mode of the device. |
| * |
| * Returns BTM_BLE_NON_CONNECTABLE or BTM_BLE_CONNECTABLE |
| * |
| ******************************************************************************/ |
| uint16_t BTM_BleReadConnectability() { |
| BTM_TRACE_API("%s", __func__); |
| |
| return (btm_cb.ble_ctr_cb.inq_var.connectable_mode); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_select_adv_interval |
| * |
| * Description select adv interval based on device mode |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_ble_select_adv_interval(tBTM_BLE_INQ_CB* p_cb, uint8_t evt_type, |
| uint16_t* p_adv_int_min, |
| uint16_t* p_adv_int_max) { |
| if (p_cb->adv_interval_min && p_cb->adv_interval_max) { |
| *p_adv_int_min = p_cb->adv_interval_min; |
| *p_adv_int_max = p_cb->adv_interval_max; |
| } else { |
| switch (evt_type) { |
| case BTM_BLE_CONNECT_EVT: |
| case BTM_BLE_CONNECT_LO_DUTY_DIR_EVT: |
| *p_adv_int_min = *p_adv_int_max = BTM_BLE_GAP_ADV_FAST_INT_1; |
| break; |
| |
| case BTM_BLE_NON_CONNECT_EVT: |
| case BTM_BLE_DISCOVER_EVT: |
| *p_adv_int_min = *p_adv_int_max = BTM_BLE_GAP_ADV_FAST_INT_2; |
| break; |
| |
| /* connectable directed event */ |
| case BTM_BLE_CONNECT_DIR_EVT: |
| *p_adv_int_min = BTM_BLE_GAP_ADV_DIR_MIN_INT; |
| *p_adv_int_max = BTM_BLE_GAP_ADV_DIR_MAX_INT; |
| break; |
| |
| default: |
| *p_adv_int_min = *p_adv_int_max = BTM_BLE_GAP_ADV_SLOW_INT; |
| break; |
| } |
| } |
| return; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_update_dmt_flag_bits |
| * |
| * Description Obtain updated adv flag value based on connect and |
| * discoverability mode. Also, setup DMT support value in the |
| * flag based on whether the controller supports both LE and |
| * BR/EDR. |
| * |
| * Parameters: flag_value (Input / Output) - flag value |
| * connect_mode (Input) - Connect mode value |
| * disc_mode (Input) - discoverability mode |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_ble_update_dmt_flag_bits(uint8_t* adv_flag_value, |
| const uint16_t connect_mode, |
| const uint16_t disc_mode) { |
| /* BR/EDR non-discoverable , non-connectable */ |
| if ((disc_mode & BTM_DISCOVERABLE_MASK) == 0 && |
| (connect_mode & BTM_CONNECTABLE_MASK) == 0) |
| *adv_flag_value |= BTM_BLE_BREDR_NOT_SPT; |
| else |
| *adv_flag_value &= ~BTM_BLE_BREDR_NOT_SPT; |
| |
| /* if local controller support, mark both controller and host support in flag |
| */ |
| if (controller_get_interface()->supports_simultaneous_le_bredr()) |
| *adv_flag_value |= (BTM_BLE_DMT_CONTROLLER_SPT | BTM_BLE_DMT_HOST_SPT); |
| else |
| *adv_flag_value &= ~(BTM_BLE_DMT_CONTROLLER_SPT | BTM_BLE_DMT_HOST_SPT); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_set_adv_flag |
| * |
| * Description Set adv flag in adv data. |
| * |
| * Parameters: connect_mode (Input)- Connect mode value |
| * disc_mode (Input) - discoverability mode |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_ble_set_adv_flag(uint16_t connect_mode, uint16_t disc_mode) { |
| uint8_t flag = 0, old_flag = 0; |
| tBTM_BLE_LOCAL_ADV_DATA* p_adv_data = &btm_cb.ble_ctr_cb.inq_var.adv_data; |
| |
| if (p_adv_data->p_flags != NULL) flag = old_flag = *(p_adv_data->p_flags); |
| |
| btm_ble_update_dmt_flag_bits(&flag, connect_mode, disc_mode); |
| |
| LOG_DEBUG(LOG_TAG, "disc_mode %04x", disc_mode); |
| /* update discoverable flag */ |
| if (disc_mode & BTM_BLE_LIMITED_DISCOVERABLE) { |
| flag &= ~BTM_BLE_GEN_DISC_FLAG; |
| flag |= BTM_BLE_LIMIT_DISC_FLAG; |
| } else if (disc_mode & BTM_BLE_GENERAL_DISCOVERABLE) { |
| flag |= BTM_BLE_GEN_DISC_FLAG; |
| flag &= ~BTM_BLE_LIMIT_DISC_FLAG; |
| } else /* remove all discoverable flags */ |
| { |
| flag &= ~(BTM_BLE_LIMIT_DISC_FLAG | BTM_BLE_GEN_DISC_FLAG); |
| } |
| |
| if (flag != old_flag) { |
| btm_ble_update_adv_flag(flag); |
| } |
| } |
| /******************************************************************************* |
| * |
| * Function btm_ble_set_discoverability |
| * |
| * Description This function is called to set BLE discoverable mode. |
| * |
| * Parameters: combined_mode: discoverability mode. |
| * |
| * Returns BTM_SUCCESS is status set successfully; otherwise failure. |
| * |
| ******************************************************************************/ |
| tBTM_STATUS btm_ble_set_discoverability(uint16_t combined_mode) { |
| 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; |
| uint16_t mode = (combined_mode & BTM_BLE_DISCOVERABLE_MASK); |
| uint8_t new_mode = BTM_BLE_ADV_ENABLE; |
| uint8_t evt_type; |
| tBTM_STATUS status = BTM_SUCCESS; |
| RawAddress address = RawAddress::kEmpty; |
| tBLE_ADDR_TYPE init_addr_type = BLE_ADDR_PUBLIC, |
| own_addr_type = p_addr_cb->own_addr_type; |
| uint16_t adv_int_min, adv_int_max; |
| |
| BTM_TRACE_EVENT("%s mode=0x%0x combined_mode=0x%x", __func__, mode, |
| combined_mode); |
| |
| /*** Check mode parameter ***/ |
| if (mode > BTM_BLE_MAX_DISCOVERABLE) return (BTM_ILLEGAL_VALUE); |
| |
| p_cb->discoverable_mode = mode; |
| |
| evt_type = btm_set_conn_mode_adv_init_addr(p_cb, address, &init_addr_type, |
| &own_addr_type); |
| |
| if (p_cb->connectable_mode == BTM_BLE_NON_CONNECTABLE && |
| mode == BTM_BLE_NON_DISCOVERABLE) |
| new_mode = BTM_BLE_ADV_DISABLE; |
| |
| btm_ble_select_adv_interval(p_cb, evt_type, &adv_int_min, &adv_int_max); |
| |
| alarm_cancel(p_cb->fast_adv_timer); |
| |
| /* update adv params if start advertising */ |
| BTM_TRACE_EVENT("evt_type=0x%x p-cb->evt_type=0x%x ", evt_type, |
| p_cb->evt_type); |
| |
| if (new_mode == BTM_BLE_ADV_ENABLE) { |
| btm_ble_set_adv_flag(btm_cb.btm_inq_vars.connectable_mode, combined_mode); |
| |
| if (evt_type != p_cb->evt_type || p_cb->adv_addr_type != own_addr_type || |
| !p_cb->fast_adv_on) { |
| btm_ble_stop_adv(); |
| |
| /* update adv params */ |
| btsnd_hcic_ble_write_adv_params(adv_int_min, adv_int_max, evt_type, |
| own_addr_type, init_addr_type, address, |
| p_cb->adv_chnl_map, p_cb->afp); |
| p_cb->evt_type = evt_type; |
| p_cb->adv_addr_type = own_addr_type; |
| } |
| } |
| |
| if (status == BTM_SUCCESS && p_cb->adv_mode != new_mode) { |
| if (new_mode == BTM_BLE_ADV_ENABLE) |
| status = btm_ble_start_adv(); |
| else |
| status = btm_ble_stop_adv(); |
| } |
| |
| if (p_cb->adv_mode == BTM_BLE_ADV_ENABLE) { |
| p_cb->fast_adv_on = true; |
| /* start initial GAP mode adv timer */ |
| alarm_set_on_mloop(p_cb->fast_adv_timer, BTM_BLE_GAP_FAST_ADV_TIMEOUT_MS, |
| btm_ble_fast_adv_timer_timeout, NULL); |
| } else { |
| #if (BLE_PRIVACY_SPT == TRUE) |
| btm_ble_disable_resolving_list(BTM_BLE_RL_ADV, true); |
| #endif |
| } |
| |
| /* set up stop advertising timer */ |
| if (status == BTM_SUCCESS && mode == BTM_BLE_LIMITED_DISCOVERABLE) { |
| BTM_TRACE_EVENT("start timer for limited disc mode duration=%d ms", |
| BTM_BLE_GAP_LIM_TIMEOUT_MS); |
| /* start Tgap(lim_timeout) */ |
| alarm_set_on_mloop(p_cb->inquiry_timer, BTM_BLE_GAP_LIM_TIMEOUT_MS, |
| btm_ble_inquiry_timer_gap_limited_discovery_timeout, |
| NULL); |
| } |
| return status; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_set_connectability |
| * |
| * Description This function is called to set BLE connectability mode. |
| * |
| * Parameters: combined_mode: connectability mode. |
| * |
| * Returns BTM_SUCCESS is status set successfully; otherwise failure. |
| * |
| ******************************************************************************/ |
| tBTM_STATUS btm_ble_set_connectability(uint16_t combined_mode) { |
| 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; |
| uint16_t mode = (combined_mode & BTM_BLE_CONNECTABLE_MASK); |
| uint8_t new_mode = BTM_BLE_ADV_ENABLE; |
| uint8_t evt_type; |
| tBTM_STATUS status = BTM_SUCCESS; |
| RawAddress address = RawAddress::kEmpty; |
| tBLE_ADDR_TYPE peer_addr_type = BLE_ADDR_PUBLIC, |
| own_addr_type = p_addr_cb->own_addr_type; |
| uint16_t adv_int_min, adv_int_max; |
| |
| BTM_TRACE_EVENT("%s mode=0x%0x combined_mode=0x%x", __func__, mode, |
| combined_mode); |
| |
| /*** Check mode parameter ***/ |
| if (mode > BTM_BLE_MAX_CONNECTABLE) return (BTM_ILLEGAL_VALUE); |
| |
| p_cb->connectable_mode = mode; |
| |
| evt_type = btm_set_conn_mode_adv_init_addr(p_cb, address, &peer_addr_type, |
| &own_addr_type); |
| |
| if (mode == BTM_BLE_NON_CONNECTABLE && |
| p_cb->discoverable_mode == BTM_BLE_NON_DISCOVERABLE) |
| new_mode = BTM_BLE_ADV_DISABLE; |
| |
| btm_ble_select_adv_interval(p_cb, evt_type, &adv_int_min, &adv_int_max); |
| |
| alarm_cancel(p_cb->fast_adv_timer); |
| /* update adv params if needed */ |
| if (new_mode == BTM_BLE_ADV_ENABLE) { |
| btm_ble_set_adv_flag(combined_mode, btm_cb.btm_inq_vars.discoverable_mode); |
| if (p_cb->evt_type != evt_type || |
| p_cb->adv_addr_type != p_addr_cb->own_addr_type || !p_cb->fast_adv_on) { |
| btm_ble_stop_adv(); |
| |
| btsnd_hcic_ble_write_adv_params(adv_int_min, adv_int_max, evt_type, |
| own_addr_type, peer_addr_type, address, |
| p_cb->adv_chnl_map, p_cb->afp); |
| p_cb->evt_type = evt_type; |
| p_cb->adv_addr_type = own_addr_type; |
| } |
| } |
| |
| /* update advertising mode */ |
| if (status == BTM_SUCCESS && new_mode != p_cb->adv_mode) { |
| if (new_mode == BTM_BLE_ADV_ENABLE) |
| status = btm_ble_start_adv(); |
| else |
| status = btm_ble_stop_adv(); |
| } |
| |
| if (p_cb->adv_mode == BTM_BLE_ADV_ENABLE) { |
| p_cb->fast_adv_on = true; |
| /* start initial GAP mode adv timer */ |
| alarm_set_on_mloop(p_cb->fast_adv_timer, BTM_BLE_GAP_FAST_ADV_TIMEOUT_MS, |
| btm_ble_fast_adv_timer_timeout, NULL); |
| } else { |
| #if (BLE_PRIVACY_SPT == TRUE) |
| btm_ble_disable_resolving_list(BTM_BLE_RL_ADV, true); |
| #endif |
| } |
| return status; |
| } |
| |
| void btm_send_hci_scan_enable(uint8_t enable, uint8_t filter_duplicates) { |
| if (controller_get_interface()->supports_ble_extended_advertising()) { |
| btsnd_hcic_ble_set_extended_scan_enable(enable, filter_duplicates, 0x0000, |
| 0x0000); |
| } else { |
| btsnd_hcic_ble_set_scan_enable(enable, filter_duplicates); |
| } |
| } |
| |
| void btm_send_hci_set_scan_params(uint8_t scan_type, uint16_t scan_int, |
| uint16_t scan_win, uint8_t addr_type_own, |
| uint8_t scan_filter_policy) { |
| if (controller_get_interface()->supports_ble_extended_advertising()) { |
| scanning_phy_cfg phy_cfg; |
| phy_cfg.scan_type = scan_type; |
| phy_cfg.scan_int = scan_int; |
| phy_cfg.scan_win = scan_win; |
| |
| btsnd_hcic_ble_set_extended_scan_params(addr_type_own, scan_filter_policy, |
| 1, &phy_cfg); |
| } else { |
| btsnd_hcic_ble_set_scan_params(scan_type, scan_int, scan_win, addr_type_own, |
| scan_filter_policy); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_start_inquiry |
| * |
| * Description This function is called to start BLE inquiry procedure. |
| * If the duration is zero, the periodic inquiry mode is |
| * cancelled. |
| * |
| * Parameters: mode - GENERAL or LIMITED inquiry |
| * p_inq_params - pointer to the BLE inquiry parameter. |
| * p_results_cb - callback returning pointer to results |
| * (tBTM_INQ_RESULTS) |
| * p_cmpl_cb - callback indicating the end of an inquiry |
| * |
| * |
| * |
| * Returns BTM_CMD_STARTED if successfully started |
| * BTM_NO_RESOURCES if could not allocate a message buffer |
| * BTM_BUSY - if an inquiry is already active |
| * |
| ******************************************************************************/ |
| tBTM_STATUS btm_ble_start_inquiry(uint8_t mode, uint8_t duration) { |
| tBTM_STATUS status = BTM_CMD_STARTED; |
| tBTM_BLE_CB* p_ble_cb = &btm_cb.ble_ctr_cb; |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| |
| BTM_TRACE_DEBUG("btm_ble_start_inquiry: mode = %02x inq_active = 0x%02x", |
| mode, btm_cb.btm_inq_vars.inq_active); |
| |
| /* if selective connection is active, or inquiry is already active, reject it |
| */ |
| if (BTM_BLE_IS_INQ_ACTIVE(p_ble_cb->scan_activity)) { |
| BTM_TRACE_ERROR("LE Inquiry is active, can not start inquiry"); |
| return (BTM_BUSY); |
| } |
| |
| if (!BTM_BLE_IS_SCAN_ACTIVE(p_ble_cb->scan_activity)) { |
| btm_send_hci_set_scan_params( |
| BTM_BLE_SCAN_MODE_ACTI, BTM_BLE_LOW_LATENCY_SCAN_INT, |
| BTM_BLE_LOW_LATENCY_SCAN_WIN, |
| btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type, SP_ADV_ALL); |
| #if (BLE_PRIVACY_SPT == TRUE) |
| /* enable IRK list */ |
| btm_ble_enable_resolving_list_for_platform(BTM_BLE_RL_SCAN); |
| #endif |
| p_ble_cb->inq_var.scan_duplicate_filter = BTM_BLE_DUPLICATE_DISABLE; |
| status = btm_ble_start_scan(); |
| } else if ((p_ble_cb->inq_var.scan_interval != |
| BTM_BLE_LOW_LATENCY_SCAN_INT) || |
| (p_ble_cb->inq_var.scan_window != BTM_BLE_LOW_LATENCY_SCAN_WIN)) { |
| BTM_TRACE_DEBUG("%s, restart LE scan with low latency scan params", |
| __func__); |
| btm_send_hci_scan_enable(BTM_BLE_SCAN_DISABLE, BTM_BLE_DUPLICATE_ENABLE); |
| btm_send_hci_set_scan_params( |
| BTM_BLE_SCAN_MODE_ACTI, BTM_BLE_LOW_LATENCY_SCAN_INT, |
| BTM_BLE_LOW_LATENCY_SCAN_WIN, |
| btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type, SP_ADV_ALL); |
| btm_send_hci_scan_enable(BTM_BLE_SCAN_ENABLE, BTM_BLE_DUPLICATE_DISABLE); |
| } |
| |
| if (status == BTM_CMD_STARTED) { |
| p_inq->inq_active |= mode; |
| p_ble_cb->scan_activity |= mode; |
| |
| BTM_TRACE_DEBUG("btm_ble_start_inquiry inq_active = 0x%02x", |
| p_inq->inq_active); |
| |
| if (duration != 0) { |
| /* start inquiry timer */ |
| period_ms_t duration_ms = duration * 1000; |
| alarm_set_on_mloop(p_ble_cb->inq_var.inquiry_timer, duration_ms, |
| btm_ble_inquiry_timer_timeout, NULL); |
| } |
| } |
| |
| return status; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_read_remote_name_cmpl |
| * |
| * Description This function is called when BLE remote name is received. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_ble_read_remote_name_cmpl(bool status, const RawAddress& bda, |
| uint16_t length, char* p_name) { |
| uint8_t hci_status = HCI_SUCCESS; |
| BD_NAME bd_name; |
| |
| memset(bd_name, 0, (BD_NAME_LEN + 1)); |
| if (length > BD_NAME_LEN) { |
| length = BD_NAME_LEN; |
| } |
| memcpy((uint8_t*)bd_name, p_name, length); |
| |
| if ((!status) || (length == 0)) { |
| hci_status = HCI_ERR_HOST_TIMEOUT; |
| } |
| |
| btm_process_remote_name(&bda, bd_name, length + 1, hci_status); |
| btm_sec_rmt_name_request_complete(&bda, (uint8_t*)p_name, hci_status); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_read_remote_name |
| * |
| * Description This function read remote LE device name using GATT read |
| * procedure. |
| * |
| * Parameters: None. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| tBTM_STATUS btm_ble_read_remote_name(const RawAddress& remote_bda, |
| tBTM_CMPL_CB* p_cb) { |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| |
| if (!controller_get_interface()->supports_ble()) return BTM_ERR_PROCESSING; |
| |
| tINQ_DB_ENT* p_i = btm_inq_db_find(remote_bda); |
| if (p_i && !ble_evt_type_is_connectable(p_i->inq_info.results.ble_evt_type)) { |
| BTM_TRACE_DEBUG("name request to non-connectable device failed."); |
| return BTM_ERR_PROCESSING; |
| } |
| |
| /* read remote device name using GATT procedure */ |
| if (p_inq->remname_active) return BTM_BUSY; |
| |
| if (!GAP_BleReadPeerDevName(remote_bda, btm_ble_read_remote_name_cmpl)) |
| return BTM_BUSY; |
| |
| p_inq->p_remname_cmpl_cb = p_cb; |
| p_inq->remname_active = true; |
| p_inq->remname_bda = remote_bda; |
| |
| alarm_set_on_mloop(p_inq->remote_name_timer, BTM_EXT_BLE_RMT_NAME_TIMEOUT_MS, |
| btm_inq_remote_name_timer_timeout, NULL); |
| |
| return BTM_CMD_STARTED; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_cancel_remote_name |
| * |
| * Description This function cancel read remote LE device name. |
| * |
| * Parameters: None. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| bool btm_ble_cancel_remote_name(const RawAddress& remote_bda) { |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| bool status; |
| |
| status = GAP_BleCancelReadPeerDevName(remote_bda); |
| |
| p_inq->remname_active = false; |
| p_inq->remname_bda = RawAddress::kEmpty; |
| alarm_cancel(p_inq->remote_name_timer); |
| |
| return status; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_update_adv_flag |
| * |
| * Description This function update the limited discoverable flag in the |
| * adv data. |
| * |
| * Parameters: None. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| static void btm_ble_update_adv_flag(uint8_t flag) { |
| tBTM_BLE_LOCAL_ADV_DATA* p_adv_data = &btm_cb.ble_ctr_cb.inq_var.adv_data; |
| uint8_t* p; |
| |
| BTM_TRACE_DEBUG("btm_ble_update_adv_flag new=0x%x", flag); |
| |
| if (p_adv_data->p_flags != NULL) { |
| BTM_TRACE_DEBUG("btm_ble_update_adv_flag old=0x%x", *p_adv_data->p_flags); |
| *p_adv_data->p_flags = flag; |
| } else /* no FLAGS in ADV data*/ |
| { |
| p = (p_adv_data->p_pad == NULL) ? p_adv_data->ad_data : p_adv_data->p_pad; |
| /* need 3 bytes space to stuff in the flags, if not */ |
| /* erase all written data, just for flags */ |
| if ((BTM_BLE_AD_DATA_LEN - (p - p_adv_data->ad_data)) < 3) { |
| p = p_adv_data->p_pad = p_adv_data->ad_data; |
| memset(p_adv_data->ad_data, 0, BTM_BLE_AD_DATA_LEN); |
| } |
| |
| *p++ = 2; |
| *p++ = BTM_BLE_AD_TYPE_FLAG; |
| p_adv_data->p_flags = p; |
| *p++ = flag; |
| p_adv_data->p_pad = p; |
| } |
| |
| btsnd_hcic_ble_set_adv_data( |
| (uint8_t)(p_adv_data->p_pad - p_adv_data->ad_data), p_adv_data->ad_data); |
| p_adv_data->data_mask |= BTM_BLE_AD_BIT_FLAGS; |
| } |
| |
| /** |
| * Check ADV flag to make sure device is discoverable and match the search |
| * condition |
| */ |
| uint8_t btm_ble_is_discoverable(const RawAddress& bda, |
| std::vector<uint8_t> const& adv_data) { |
| uint8_t flag = 0, rt = 0; |
| uint8_t data_len; |
| tBTM_INQ_PARMS* p_cond = &btm_cb.btm_inq_vars.inqparms; |
| |
| /* for observer, always "discoverable */ |
| if (BTM_BLE_IS_OBS_ACTIVE(btm_cb.ble_ctr_cb.scan_activity)) |
| rt |= BTM_BLE_OBS_RESULT; |
| |
| /* does not match filter condition */ |
| if (p_cond->filter_cond_type == BTM_FILTER_COND_BD_ADDR && |
| bda != p_cond->filter_cond.bdaddr_cond) { |
| BTM_TRACE_DEBUG("BD ADDR does not meet filter condition"); |
| return rt; |
| } |
| |
| if (!adv_data.empty()) { |
| const uint8_t* p_flag = AdvertiseDataParser::GetFieldByType( |
| adv_data, BTM_BLE_AD_TYPE_FLAG, &data_len); |
| if (p_flag != NULL) { |
| flag = *p_flag; |
| |
| if ((btm_cb.btm_inq_vars.inq_active & BTM_BLE_GENERAL_INQUIRY) && |
| (flag & (BTM_BLE_LIMIT_DISC_FLAG | BTM_BLE_GEN_DISC_FLAG)) != 0) { |
| BTM_TRACE_DEBUG("Find Generable Discoverable device"); |
| rt |= BTM_BLE_INQ_RESULT; |
| } |
| |
| else if (btm_cb.btm_inq_vars.inq_active & BTM_BLE_LIMITED_INQUIRY && |
| (flag & BTM_BLE_LIMIT_DISC_FLAG) != 0) { |
| BTM_TRACE_DEBUG("Find limited discoverable device"); |
| rt |= BTM_BLE_INQ_RESULT; |
| } |
| } |
| } |
| return rt; |
| } |
| |
| static void btm_ble_appearance_to_cod(uint16_t appearance, uint8_t* dev_class) { |
| dev_class[0] = 0; |
| |
| switch (appearance) { |
| case BTM_BLE_APPEARANCE_GENERIC_PHONE: |
| dev_class[1] = BTM_COD_MAJOR_PHONE; |
| dev_class[2] = BTM_COD_MINOR_UNCLASSIFIED; |
| break; |
| case BTM_BLE_APPEARANCE_GENERIC_COMPUTER: |
| dev_class[1] = BTM_COD_MAJOR_COMPUTER; |
| dev_class[2] = BTM_COD_MINOR_UNCLASSIFIED; |
| break; |
| case BTM_BLE_APPEARANCE_GENERIC_REMOTE: |
| dev_class[1] = BTM_COD_MAJOR_PERIPHERAL; |
| dev_class[2] = BTM_COD_MINOR_REMOTE_CONTROL; |
| break; |
| case BTM_BLE_APPEARANCE_GENERIC_THERMOMETER: |
| case BTM_BLE_APPEARANCE_THERMOMETER_EAR: |
| dev_class[1] = BTM_COD_MAJOR_HEALTH; |
| dev_class[2] = BTM_COD_MINOR_THERMOMETER; |
| break; |
| case BTM_BLE_APPEARANCE_GENERIC_HEART_RATE: |
| case BTM_BLE_APPEARANCE_HEART_RATE_BELT: |
| dev_class[1] = BTM_COD_MAJOR_HEALTH; |
| dev_class[2] = BTM_COD_MINOR_HEART_PULSE_MONITOR; |
| break; |
| case BTM_BLE_APPEARANCE_GENERIC_BLOOD_PRESSURE: |
| case BTM_BLE_APPEARANCE_BLOOD_PRESSURE_ARM: |
| case BTM_BLE_APPEARANCE_BLOOD_PRESSURE_WRIST: |
| dev_class[1] = BTM_COD_MAJOR_HEALTH; |
| dev_class[2] = BTM_COD_MINOR_BLOOD_MONITOR; |
| break; |
| case BTM_BLE_APPEARANCE_GENERIC_PULSE_OXIMETER: |
| case BTM_BLE_APPEARANCE_PULSE_OXIMETER_FINGERTIP: |
| case BTM_BLE_APPEARANCE_PULSE_OXIMETER_WRIST: |
| dev_class[1] = BTM_COD_MAJOR_HEALTH; |
| dev_class[2] = BTM_COD_MINOR_PULSE_OXIMETER; |
| break; |
| case BTM_BLE_APPEARANCE_GENERIC_GLUCOSE: |
| dev_class[1] = BTM_COD_MAJOR_HEALTH; |
| dev_class[2] = BTM_COD_MINOR_GLUCOSE_METER; |
| break; |
| case BTM_BLE_APPEARANCE_GENERIC_WEIGHT: |
| dev_class[1] = BTM_COD_MAJOR_HEALTH; |
| dev_class[2] = BTM_COD_MINOR_WEIGHING_SCALE; |
| break; |
| case BTM_BLE_APPEARANCE_GENERIC_WALKING: |
| case BTM_BLE_APPEARANCE_WALKING_IN_SHOE: |
| case BTM_BLE_APPEARANCE_WALKING_ON_SHOE: |
| case BTM_BLE_APPEARANCE_WALKING_ON_HIP: |
| dev_class[1] = BTM_COD_MAJOR_HEALTH; |
| dev_class[2] = BTM_COD_MINOR_STEP_COUNTER; |
| break; |
| case BTM_BLE_APPEARANCE_GENERIC_WATCH: |
| case BTM_BLE_APPEARANCE_SPORTS_WATCH: |
| dev_class[1] = BTM_COD_MAJOR_WEARABLE; |
| dev_class[2] = BTM_COD_MINOR_WRIST_WATCH; |
| break; |
| case BTM_BLE_APPEARANCE_GENERIC_EYEGLASSES: |
| dev_class[1] = BTM_COD_MAJOR_WEARABLE; |
| dev_class[2] = BTM_COD_MINOR_GLASSES; |
| break; |
| case BTM_BLE_APPEARANCE_GENERIC_DISPLAY: |
| dev_class[1] = BTM_COD_MAJOR_IMAGING; |
| dev_class[2] = BTM_COD_MINOR_DISPLAY; |
| break; |
| case BTM_BLE_APPEARANCE_GENERIC_MEDIA_PLAYER: |
| dev_class[1] = BTM_COD_MAJOR_AUDIO; |
| dev_class[2] = BTM_COD_MINOR_UNCLASSIFIED; |
| break; |
| case BTM_BLE_APPEARANCE_GENERIC_BARCODE_SCANNER: |
| case BTM_BLE_APPEARANCE_HID_BARCODE_SCANNER: |
| case BTM_BLE_APPEARANCE_GENERIC_HID: |
| dev_class[1] = BTM_COD_MAJOR_PERIPHERAL; |
| dev_class[2] = BTM_COD_MINOR_UNCLASSIFIED; |
| break; |
| case BTM_BLE_APPEARANCE_HID_KEYBOARD: |
| dev_class[1] = BTM_COD_MAJOR_PERIPHERAL; |
| dev_class[2] = BTM_COD_MINOR_KEYBOARD; |
| break; |
| case BTM_BLE_APPEARANCE_HID_MOUSE: |
| dev_class[1] = BTM_COD_MAJOR_PERIPHERAL; |
| dev_class[2] = BTM_COD_MINOR_POINTING; |
| break; |
| case BTM_BLE_APPEARANCE_HID_JOYSTICK: |
| dev_class[1] = BTM_COD_MAJOR_PERIPHERAL; |
| dev_class[2] = BTM_COD_MINOR_JOYSTICK; |
| break; |
| case BTM_BLE_APPEARANCE_HID_GAMEPAD: |
| dev_class[1] = BTM_COD_MAJOR_PERIPHERAL; |
| dev_class[2] = BTM_COD_MINOR_GAMEPAD; |
| break; |
| case BTM_BLE_APPEARANCE_HID_DIGITIZER_TABLET: |
| dev_class[1] = BTM_COD_MAJOR_PERIPHERAL; |
| dev_class[2] = BTM_COD_MINOR_DIGITIZING_TABLET; |
| break; |
| case BTM_BLE_APPEARANCE_HID_CARD_READER: |
| dev_class[1] = BTM_COD_MAJOR_PERIPHERAL; |
| dev_class[2] = BTM_COD_MINOR_CARD_READER; |
| break; |
| case BTM_BLE_APPEARANCE_HID_DIGITAL_PEN: |
| dev_class[1] = BTM_COD_MAJOR_PERIPHERAL; |
| dev_class[2] = BTM_COD_MINOR_DIGITAL_PAN; |
| break; |
| case BTM_BLE_APPEARANCE_UKNOWN: |
| case BTM_BLE_APPEARANCE_GENERIC_CLOCK: |
| case BTM_BLE_APPEARANCE_GENERIC_TAG: |
| case BTM_BLE_APPEARANCE_GENERIC_KEYRING: |
| case BTM_BLE_APPEARANCE_GENERIC_CYCLING: |
| case BTM_BLE_APPEARANCE_CYCLING_COMPUTER: |
| case BTM_BLE_APPEARANCE_CYCLING_SPEED: |
| case BTM_BLE_APPEARANCE_CYCLING_CADENCE: |
| case BTM_BLE_APPEARANCE_CYCLING_POWER: |
| case BTM_BLE_APPEARANCE_CYCLING_SPEED_CADENCE: |
| case BTM_BLE_APPEARANCE_GENERIC_OUTDOOR_SPORTS: |
| case BTM_BLE_APPEARANCE_OUTDOOR_SPORTS_LOCATION: |
| case BTM_BLE_APPEARANCE_OUTDOOR_SPORTS_LOCATION_AND_NAV: |
| case BTM_BLE_APPEARANCE_OUTDOOR_SPORTS_LOCATION_POD: |
| case BTM_BLE_APPEARANCE_OUTDOOR_SPORTS_LOCATION_POD_AND_NAV: |
| default: |
| dev_class[1] = BTM_COD_MAJOR_UNCLASSIFIED; |
| dev_class[2] = BTM_COD_MINOR_UNCLASSIFIED; |
| }; |
| } |
| |
| /** |
| * Update adv packet information into inquiry result. |
| */ |
| void btm_ble_update_inq_result(tINQ_DB_ENT* p_i, uint8_t addr_type, |
| const RawAddress& bda, uint16_t evt_type, |
| uint8_t primary_phy, uint8_t secondary_phy, |
| uint8_t advertising_sid, int8_t tx_power, |
| int8_t rssi, uint16_t periodic_adv_int, |
| std::vector<uint8_t> const& data) { |
| tBTM_INQ_RESULTS* p_cur = &p_i->inq_info.results; |
| uint8_t len; |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| |
| /* Save the info */ |
| p_cur->inq_result_type = BTM_INQ_RESULT_BLE; |
| p_cur->ble_addr_type = addr_type; |
| p_cur->rssi = rssi; |
| p_cur->ble_primary_phy = primary_phy; |
| p_cur->ble_secondary_phy = secondary_phy; |
| p_cur->ble_advertising_sid = advertising_sid; |
| p_cur->ble_tx_power = tx_power; |
| p_cur->ble_periodic_adv_int = periodic_adv_int; |
| |
| if (btm_cb.ble_ctr_cb.inq_var.scan_type == BTM_BLE_SCAN_MODE_ACTI && |
| ble_evt_type_is_scannable(evt_type) && |
| !ble_evt_type_is_scan_resp(evt_type)) { |
| p_i->scan_rsp = false; |
| } else |
| p_i->scan_rsp = true; |
| |
| if (p_i->inq_count != p_inq->inq_counter) |
| p_cur->device_type = BT_DEVICE_TYPE_BLE; |
| else |
| p_cur->device_type |= BT_DEVICE_TYPE_BLE; |
| |
| if (evt_type != BTM_BLE_SCAN_RSP_EVT) p_cur->ble_evt_type = evt_type; |
| |
| p_i->inq_count = p_inq->inq_counter; /* Mark entry for current inquiry */ |
| |
| if (!data.empty()) { |
| const uint8_t* p_flag = |
| AdvertiseDataParser::GetFieldByType(data, BTM_BLE_AD_TYPE_FLAG, &len); |
| if (p_flag != NULL) p_cur->flag = *p_flag; |
| } |
| |
| if (!data.empty()) { |
| /* Check to see the BLE device has the Appearance UUID in the advertising |
| * data. If it does |
| * then try to convert the appearance value to a class of device value |
| * Bluedroid can use. |
| * Otherwise fall back to trying to infer if it is a HID device based on the |
| * service class. |
| */ |
| const uint8_t* p_uuid16 = AdvertiseDataParser::GetFieldByType( |
| data, BTM_BLE_AD_TYPE_APPEARANCE, &len); |
| if (p_uuid16 && len == 2) { |
| btm_ble_appearance_to_cod((uint16_t)p_uuid16[0] | (p_uuid16[1] << 8), |
| p_cur->dev_class); |
| } else { |
| p_uuid16 = AdvertiseDataParser::GetFieldByType( |
| data, BTM_BLE_AD_TYPE_16SRV_CMPL, &len); |
| if (p_uuid16 != NULL) { |
| uint8_t i; |
| for (i = 0; i + 2 <= len; i = i + 2) { |
| /* if this BLE device support HID over LE, set HID Major in class of |
| * device */ |
| if ((p_uuid16[i] | (p_uuid16[i + 1] << 8)) == UUID_SERVCLASS_LE_HID) { |
| p_cur->dev_class[0] = 0; |
| p_cur->dev_class[1] = BTM_COD_MAJOR_PERIPHERAL; |
| p_cur->dev_class[2] = 0; |
| break; |
| } |
| } |
| } |
| } |
| } |
| |
| /* if BR/EDR not supported is not set, assume is a DUMO device */ |
| if ((p_cur->flag & BTM_BLE_BREDR_NOT_SPT) == 0 && |
| !ble_evt_type_is_directed(evt_type)) { |
| if (p_cur->ble_addr_type != BLE_ADDR_RANDOM) { |
| BTM_TRACE_DEBUG("BR/EDR NOT support bit not set, treat as DUMO"); |
| p_cur->device_type |= BT_DEVICE_TYPE_DUMO; |
| } else { |
| BTM_TRACE_DEBUG("Random address, treating device as LE only"); |
| } |
| } else { |
| BTM_TRACE_DEBUG("BR/EDR NOT SUPPORT bit set, LE only device"); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_clear_all_pending_le_entry |
| * |
| * Description This function is called to clear all LE pending entry in |
| * inquiry database. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_clear_all_pending_le_entry(void) { |
| uint16_t xx; |
| tINQ_DB_ENT* p_ent = btm_cb.btm_inq_vars.inq_db; |
| |
| for (xx = 0; xx < BTM_INQ_DB_SIZE; xx++, p_ent++) { |
| /* mark all pending LE entry as unused if an LE only device has scan |
| * response outstanding */ |
| if ((p_ent->in_use) && |
| (p_ent->inq_info.results.device_type == BT_DEVICE_TYPE_BLE) && |
| !p_ent->scan_rsp) |
| p_ent->in_use = false; |
| } |
| } |
| |
| void btm_ble_process_adv_addr(RawAddress& bda, uint8_t addr_type) { |
| #if (BLE_PRIVACY_SPT == TRUE) |
| /* map address to security record */ |
| bool match = btm_identity_addr_to_random_pseudo(&bda, &addr_type, false); |
| |
| VLOG(1) << __func__ << ": bda=" << bda; |
| /* always do RRA resolution on host */ |
| if (!match && BTM_BLE_IS_RESOLVE_BDA(bda)) { |
| tBTM_SEC_DEV_REC* match_rec = btm_ble_resolve_random_addr(bda); |
| if (match_rec) { |
| match_rec->ble.active_addr_type = BTM_BLE_ADDR_RRA; |
| match_rec->ble.cur_rand_addr = bda; |
| |
| if (btm_ble_init_pseudo_addr(match_rec, bda)) { |
| bda = match_rec->bd_addr; |
| } else { |
| // Assign the original address to be the current report address |
| bda = match_rec->ble.pseudo_addr; |
| } |
| } |
| } |
| #endif |
| } |
| |
| /** |
| * This function is called when extended advertising report event is received . |
| * It updates the inquiry database. If the inquiry database is full, the oldest |
| * entry is discarded. |
| */ |
| void btm_ble_process_ext_adv_pkt(uint8_t data_len, uint8_t* data) { |
| RawAddress bda, direct_address; |
| uint8_t* p = data; |
| uint8_t addr_type, num_reports, pkt_data_len, primary_phy, secondary_phy, |
| advertising_sid; |
| int8_t rssi, tx_power; |
| uint16_t event_type, periodic_adv_int, direct_address_type; |
| |
| /* Only process the results if the inquiry is still active */ |
| if (!BTM_BLE_IS_SCAN_ACTIVE(btm_cb.ble_ctr_cb.scan_activity)) return; |
| |
| /* Extract the number of reports in this event. */ |
| STREAM_TO_UINT8(num_reports, p); |
| |
| while (num_reports--) { |
| if (p > data + data_len) { |
| // TODO(jpawlowski): we should crash the stack here |
| BTM_TRACE_ERROR( |
| "Malformed LE Extended Advertising Report Event from controller - " |
| "can't loop the data"); |
| return; |
| } |
| |
| /* Extract inquiry results */ |
| STREAM_TO_UINT16(event_type, p); |
| STREAM_TO_UINT8(addr_type, p); |
| STREAM_TO_BDADDR(bda, p); |
| STREAM_TO_UINT8(primary_phy, p); |
| STREAM_TO_UINT8(secondary_phy, p); |
| STREAM_TO_UINT8(advertising_sid, p); |
| STREAM_TO_INT8(tx_power, p); |
| STREAM_TO_INT8(rssi, p); |
| STREAM_TO_UINT16(periodic_adv_int, p); |
| STREAM_TO_UINT8(direct_address_type, p); |
| STREAM_TO_BDADDR(direct_address, p); |
| STREAM_TO_UINT8(pkt_data_len, p); |
| |
| uint8_t* pkt_data = p; |
| p += pkt_data_len; /* Advance to the the next packet*/ |
| |
| if (rssi >= 21 && rssi <= 126) { |
| BTM_TRACE_ERROR("%s: bad rssi value in advertising report: ", __func__, |
| pkt_data_len, rssi); |
| } |
| |
| btm_ble_process_adv_addr(bda, addr_type); |
| btm_ble_process_adv_pkt_cont(event_type, addr_type, bda, primary_phy, |
| secondary_phy, advertising_sid, tx_power, rssi, |
| periodic_adv_int, pkt_data_len, pkt_data); |
| } |
| } |
| |
| /** |
| * This function is called when advertising report event is received. It updates |
| * the inquiry database. If the inquiry database is full, the oldest entry is |
| * discarded. |
| */ |
| void btm_ble_process_adv_pkt(uint8_t data_len, uint8_t* data) { |
| RawAddress bda; |
| uint8_t* p = data; |
| uint8_t legacy_evt_type, addr_type, num_reports, pkt_data_len; |
| int8_t rssi; |
| |
| /* Only process the results if the inquiry is still active */ |
| if (!BTM_BLE_IS_SCAN_ACTIVE(btm_cb.ble_ctr_cb.scan_activity)) return; |
| |
| /* Extract the number of reports in this event. */ |
| STREAM_TO_UINT8(num_reports, p); |
| |
| while (num_reports--) { |
| if (p > data + data_len) { |
| // TODO(jpawlowski): we should crash the stack here |
| BTM_TRACE_ERROR("Malformed LE Advertising Report Event from controller"); |
| return; |
| } |
| |
| /* Extract inquiry results */ |
| STREAM_TO_UINT8(legacy_evt_type, p); |
| STREAM_TO_UINT8(addr_type, p); |
| STREAM_TO_BDADDR(bda, p); |
| STREAM_TO_UINT8(pkt_data_len, p); |
| |
| uint8_t* pkt_data = p; |
| p += pkt_data_len; /* Advance to the the rssi byte */ |
| |
| STREAM_TO_INT8(rssi, p); |
| |
| if (rssi >= 21 && rssi <= 126) { |
| BTM_TRACE_ERROR("%s: bad rssi value in advertising report: ", __func__, |
| pkt_data_len, rssi); |
| } |
| |
| btm_ble_process_adv_addr(bda, addr_type); |
| |
| uint16_t event_type; |
| if (legacy_evt_type == 0x00) { // ADV_IND; |
| event_type = 0x0013; |
| } else if (legacy_evt_type == 0x01) { // ADV_DIRECT_IND; |
| event_type = 0x0015; |
| } else if (legacy_evt_type == 0x02) { // ADV_SCAN_IND; |
| event_type = 0x0012; |
| } else if (legacy_evt_type == 0x03) { // ADV_NONCONN_IND; |
| event_type = 0x0010; |
| } else if (legacy_evt_type == 0x04) { // SCAN_RSP; |
| // We can't distinguish between "SCAN_RSP to an ADV_IND", and "SCAN_RSP to |
| // an ADV_SCAN_IND", so always return "SCAN_RSP to an ADV_IND" |
| event_type = 0x001B; |
| } else { |
| BTM_TRACE_ERROR( |
| "Malformed LE Advertising Report Event - unsupported " |
| "legacy_event_type 0x%02x", |
| legacy_evt_type); |
| return; |
| } |
| |
| btm_ble_process_adv_pkt_cont( |
| event_type, addr_type, bda, PHY_LE_1M, PHY_LE_NO_PACKET, NO_ADI_PRESENT, |
| TX_POWER_NOT_PRESENT, rssi, 0x00 /* no periodic adv */, pkt_data_len, |
| pkt_data); |
| } |
| } |
| |
| /** |
| * This function is called after random address resolution is done, and proceed |
| * to process adv packet. |
| */ |
| static void btm_ble_process_adv_pkt_cont( |
| uint16_t evt_type, uint8_t addr_type, const RawAddress& bda, |
| uint8_t primary_phy, uint8_t secondary_phy, uint8_t advertising_sid, |
| int8_t tx_power, int8_t rssi, uint16_t periodic_adv_int, uint8_t data_len, |
| uint8_t* data) { |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| bool update = true; |
| |
| std::vector<uint8_t> tmp; |
| if (data_len != 0) tmp.insert(tmp.begin(), data, data + data_len); |
| |
| bool is_scannable = ble_evt_type_is_scannable(evt_type); |
| bool is_scan_resp = ble_evt_type_is_scan_resp(evt_type); |
| |
| bool is_start = |
| ble_evt_type_is_legacy(evt_type) && is_scannable && !is_scan_resp; |
| |
| if (is_start) AdvertiseDataParser::RemoveTrailingZeros(tmp); |
| |
| // We might have send scan request to this device before, but didn't get the |
| // response. In such case make sure data is put at start, not appended to |
| // already existing data. |
| std::vector<uint8_t> const& adv_data = |
| is_start ? cache.Set(addr_type, bda, std::move(tmp)) |
| : cache.Append(addr_type, bda, std::move(tmp)); |
| |
| bool data_complete = (ble_evt_type_data_status(evt_type) != 0x01); |
| |
| if (!data_complete) { |
| // If we didn't receive whole adv data yet, don't report the device. |
| DVLOG(1) << "Data not complete yet, waiting for more " << bda; |
| return; |
| } |
| |
| bool is_active_scan = |
| btm_cb.ble_ctr_cb.inq_var.scan_type == BTM_BLE_SCAN_MODE_ACTI; |
| if (is_active_scan && is_scannable && !is_scan_resp) { |
| // If we didn't receive scan response yet, don't report the device. |
| DVLOG(1) << " Waiting for scan response " << bda; |
| return; |
| } |
| |
| if (!AdvertiseDataParser::IsValid(adv_data)) { |
| DVLOG(1) << __func__ << "Dropping bad advertisement packet: " |
| << base::HexEncode(adv_data.data(), adv_data.size()); |
| return; |
| } |
| |
| tINQ_DB_ENT* p_i = btm_inq_db_find(bda); |
| |
| /* Check if this address has already been processed for this inquiry */ |
| if (btm_inq_find_bdaddr(bda)) { |
| /* never been report as an LE device */ |
| if (p_i && (!(p_i->inq_info.results.device_type & BT_DEVICE_TYPE_BLE) || |
| /* scan repsonse to be updated */ |
| (!p_i->scan_rsp))) { |
| update = true; |
| } else if (BTM_BLE_IS_OBS_ACTIVE(btm_cb.ble_ctr_cb.scan_activity)) { |
| update = false; |
| } else { |
| /* if yes, skip it */ |
| return; /* assumption: one result per event */ |
| } |
| } |
| /* If existing entry, use that, else get a new one (possibly reusing the |
| * oldest) */ |
| if (p_i == NULL) { |
| p_i = btm_inq_db_new(bda); |
| if (p_i != NULL) { |
| p_inq->inq_cmpl_info.num_resp++; |
| } else |
| return; |
| } else if (p_i->inq_count != |
| p_inq->inq_counter) /* first time seen in this inquiry */ |
| { |
| p_inq->inq_cmpl_info.num_resp++; |
| } |
| |
| /* update the LE device information in inquiry database */ |
| btm_ble_update_inq_result(p_i, addr_type, bda, evt_type, primary_phy, |
| secondary_phy, advertising_sid, tx_power, rssi, |
| periodic_adv_int, adv_data); |
| |
| uint8_t result = btm_ble_is_discoverable(bda, adv_data); |
| if (result == 0) { |
| cache.Clear(addr_type, bda); |
| LOG_WARN(LOG_TAG, |
| "%s device no longer discoverable, discarding advertising packet", |
| __func__); |
| return; |
| } |
| |
| if (!update) result &= ~BTM_BLE_INQ_RESULT; |
| /* If the number of responses found and limited, issue a cancel inquiry */ |
| if (p_inq->inqparms.max_resps && |
| p_inq->inq_cmpl_info.num_resp == p_inq->inqparms.max_resps) { |
| /* new device */ |
| if (p_i == NULL || |
| /* assume a DUMO device, BR/EDR inquiry is always active */ |
| (p_i && |
| (p_i->inq_info.results.device_type & BT_DEVICE_TYPE_BLE) == |
| BT_DEVICE_TYPE_BLE && |
| p_i->scan_rsp)) { |
| BTM_TRACE_WARNING( |
| "INQ RES: Extra Response Received...cancelling inquiry.."); |
| |
| /* if is non-periodic inquiry active, cancel now */ |
| if ((p_inq->inq_active & BTM_BR_INQ_ACTIVE_MASK) != 0 && |
| (p_inq->inq_active & BTM_PERIODIC_INQUIRY_ACTIVE) == 0) |
| btsnd_hcic_inq_cancel(); |
| |
| btm_ble_stop_inquiry(); |
| |
| btm_acl_update_busy_level(BTM_BLI_INQ_DONE_EVT); |
| } |
| } |
| |
| tBTM_INQ_RESULTS_CB* p_inq_results_cb = p_inq->p_inq_results_cb; |
| if (p_inq_results_cb && (result & BTM_BLE_INQ_RESULT)) { |
| (p_inq_results_cb)((tBTM_INQ_RESULTS*)&p_i->inq_info.results, |
| const_cast<uint8_t*>(adv_data.data()), adv_data.size()); |
| } |
| |
| tBTM_INQ_RESULTS_CB* p_obs_results_cb = btm_cb.ble_ctr_cb.p_obs_results_cb; |
| if (p_obs_results_cb && (result & BTM_BLE_OBS_RESULT)) { |
| (p_obs_results_cb)((tBTM_INQ_RESULTS*)&p_i->inq_info.results, |
| const_cast<uint8_t*>(adv_data.data()), adv_data.size()); |
| } |
| |
| cache.Clear(addr_type, bda); |
| } |
| |
| void btm_ble_process_phy_update_pkt(uint8_t len, uint8_t* data) { |
| uint8_t status, tx_phy, rx_phy; |
| uint16_t handle; |
| |
| LOG_ASSERT(len == 5); |
| uint8_t* p = data; |
| STREAM_TO_UINT8(status, p); |
| STREAM_TO_UINT16(handle, p); |
| handle = handle & 0x0FFF; |
| STREAM_TO_UINT8(tx_phy, p); |
| STREAM_TO_UINT8(rx_phy, p); |
| |
| tBTM_SEC_DEV_REC* p_dev_rec = btm_find_dev_by_handle(handle); |
| if (!p_dev_rec) { |
| BTM_TRACE_WARNING("%s: No Device Found!", __func__); |
| return; |
| } |
| |
| tGATT_TCB* p_tcb = |
| gatt_find_tcb_by_addr(p_dev_rec->ble.pseudo_addr, BT_TRANSPORT_LE); |
| if (p_tcb == NULL) return; |
| |
| gatt_notify_phy_updated(p_tcb, tx_phy, rx_phy, status); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_start_scan |
| * |
| * Description Start the BLE scan. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| tBTM_STATUS btm_ble_start_scan(void) { |
| tBTM_BLE_INQ_CB* p_inq = &btm_cb.ble_ctr_cb.inq_var; |
| /* start scan, disable duplicate filtering */ |
| btm_send_hci_scan_enable(BTM_BLE_SCAN_ENABLE, p_inq->scan_duplicate_filter); |
| |
| if (p_inq->scan_type == BTM_BLE_SCAN_MODE_ACTI) |
| btm_ble_set_topology_mask(BTM_BLE_STATE_ACTIVE_SCAN_BIT); |
| else |
| btm_ble_set_topology_mask(BTM_BLE_STATE_PASSIVE_SCAN_BIT); |
| |
| return BTM_CMD_STARTED; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_stop_scan |
| * |
| * Description Stop the BLE scan. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_ble_stop_scan(void) { |
| BTM_TRACE_EVENT("btm_ble_stop_scan "); |
| |
| if (btm_cb.ble_ctr_cb.inq_var.scan_type == BTM_BLE_SCAN_MODE_ACTI) |
| btm_ble_clear_topology_mask(BTM_BLE_STATE_ACTIVE_SCAN_BIT); |
| else |
| btm_ble_clear_topology_mask(BTM_BLE_STATE_PASSIVE_SCAN_BIT); |
| |
| /* Clear the inquiry callback if set */ |
| btm_cb.ble_ctr_cb.inq_var.scan_type = BTM_BLE_SCAN_MODE_NONE; |
| |
| /* stop discovery now */ |
| btm_send_hci_scan_enable(BTM_BLE_SCAN_DISABLE, BTM_BLE_DUPLICATE_ENABLE); |
| |
| btm_update_scanner_filter_policy(SP_ADV_ALL); |
| } |
| /******************************************************************************* |
| * |
| * Function btm_ble_stop_inquiry |
| * |
| * Description Stop the BLE Inquiry. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_ble_stop_inquiry(void) { |
| tBTM_INQUIRY_VAR_ST* p_inq = &btm_cb.btm_inq_vars; |
| tBTM_BLE_CB* p_ble_cb = &btm_cb.ble_ctr_cb; |
| |
| alarm_cancel(p_ble_cb->inq_var.inquiry_timer); |
| |
| p_ble_cb->scan_activity &= ~BTM_BLE_INQUIRY_MASK; |
| |
| /* If no more scan activity, stop LE scan now */ |
| if (!BTM_BLE_IS_SCAN_ACTIVE(p_ble_cb->scan_activity)) |
| btm_ble_stop_scan(); |
| else if ((p_ble_cb->inq_var.scan_interval != BTM_BLE_LOW_LATENCY_SCAN_INT) || |
| (p_ble_cb->inq_var.scan_window != BTM_BLE_LOW_LATENCY_SCAN_WIN)) { |
| BTM_TRACE_DEBUG("%s: setting default params for ongoing observe", __func__); |
| btm_ble_stop_scan(); |
| btm_ble_start_scan(); |
| } |
| |
| /* If we have a callback registered for inquiry complete, call it */ |
| BTM_TRACE_DEBUG("BTM Inq Compl Callback: status 0x%02x, num results %d", |
| p_inq->inq_cmpl_info.status, p_inq->inq_cmpl_info.num_resp); |
| |
| btm_process_inq_complete( |
| HCI_SUCCESS, (uint8_t)(p_inq->inqparms.mode & BTM_BLE_INQUIRY_MASK)); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_stop_observe |
| * |
| * Description Stop the BLE Observe. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| static void btm_ble_stop_observe(void) { |
| tBTM_BLE_CB* p_ble_cb = &btm_cb.ble_ctr_cb; |
| tBTM_CMPL_CB* p_obs_cb = p_ble_cb->p_obs_cmpl_cb; |
| |
| alarm_cancel(p_ble_cb->observer_timer); |
| |
| p_ble_cb->scan_activity &= ~BTM_LE_OBSERVE_ACTIVE; |
| |
| p_ble_cb->p_obs_results_cb = NULL; |
| p_ble_cb->p_obs_cmpl_cb = NULL; |
| |
| if (!BTM_BLE_IS_SCAN_ACTIVE(p_ble_cb->scan_activity)) btm_ble_stop_scan(); |
| |
| if (p_obs_cb) |
| (p_obs_cb)((tBTM_INQUIRY_CMPL*)&btm_cb.btm_inq_vars.inq_cmpl_info); |
| } |
| /******************************************************************************* |
| * |
| * Function btm_ble_adv_states_operation |
| * |
| * Description Set or clear adv states in topology mask |
| * |
| * Returns operation status. true if sucessful, false otherwise. |
| * |
| ******************************************************************************/ |
| typedef bool(BTM_TOPOLOGY_FUNC_PTR)(tBTM_BLE_STATE_MASK); |
| static bool btm_ble_adv_states_operation(BTM_TOPOLOGY_FUNC_PTR* p_handler, |
| uint8_t adv_evt) { |
| bool rt = false; |
| |
| switch (adv_evt) { |
| case BTM_BLE_CONNECT_EVT: |
| rt = (*p_handler)(BTM_BLE_STATE_CONN_ADV_BIT); |
| break; |
| |
| case BTM_BLE_NON_CONNECT_EVT: |
| rt = (*p_handler)(BTM_BLE_STATE_NON_CONN_ADV_BIT); |
| break; |
| case BTM_BLE_CONNECT_DIR_EVT: |
| rt = (*p_handler)(BTM_BLE_STATE_HI_DUTY_DIR_ADV_BIT); |
| break; |
| |
| case BTM_BLE_DISCOVER_EVT: |
| rt = (*p_handler)(BTM_BLE_STATE_SCAN_ADV_BIT); |
| break; |
| |
| case BTM_BLE_CONNECT_LO_DUTY_DIR_EVT: |
| rt = (*p_handler)(BTM_BLE_STATE_LO_DUTY_DIR_ADV_BIT); |
| break; |
| |
| default: |
| BTM_TRACE_ERROR("unknown adv event : %d", adv_evt); |
| break; |
| } |
| |
| return rt; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_start_adv |
| * |
| * Description start the BLE advertising. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| tBTM_STATUS btm_ble_start_adv(void) { |
| tBTM_BLE_INQ_CB* p_cb = &btm_cb.ble_ctr_cb.inq_var; |
| |
| if (!btm_ble_adv_states_operation(btm_ble_topology_check, p_cb->evt_type)) |
| return BTM_WRONG_MODE; |
| |
| #if (BLE_PRIVACY_SPT == TRUE) |
| /* To relax resolving list, always have resolving list enabled, unless |
| * directed adv */ |
| if (p_cb->evt_type != BTM_BLE_CONNECT_LO_DUTY_DIR_EVT && |
| p_cb->evt_type != BTM_BLE_CONNECT_DIR_EVT) |
| /* enable resolving list is desired */ |
| btm_ble_enable_resolving_list_for_platform(BTM_BLE_RL_ADV); |
| #endif |
| |
| btsnd_hcic_ble_set_adv_enable(BTM_BLE_ADV_ENABLE); |
| p_cb->adv_mode = BTM_BLE_ADV_ENABLE; |
| btm_ble_adv_states_operation(btm_ble_set_topology_mask, p_cb->evt_type); |
| return BTM_SUCCESS; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_stop_adv |
| * |
| * Description Stop the BLE advertising. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| tBTM_STATUS btm_ble_stop_adv(void) { |
| tBTM_BLE_INQ_CB* p_cb = &btm_cb.ble_ctr_cb.inq_var; |
| |
| if (p_cb->adv_mode == BTM_BLE_ADV_ENABLE) { |
| btsnd_hcic_ble_set_adv_enable(BTM_BLE_ADV_DISABLE); |
| |
| p_cb->fast_adv_on = false; |
| p_cb->adv_mode = BTM_BLE_ADV_DISABLE; |
| |
| /* clear all adv states */ |
| btm_ble_clear_topology_mask(BTM_BLE_STATE_ALL_ADV_MASK); |
| } |
| return BTM_SUCCESS; |
| } |
| |
| static void btm_ble_fast_adv_timer_timeout(UNUSED_ATTR void* data) { |
| /* fast adv is completed, fall back to slow adv interval */ |
| btm_ble_start_slow_adv(); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_start_slow_adv |
| * |
| * Description Restart adv with slow adv interval |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| static void btm_ble_start_slow_adv(void) { |
| tBTM_BLE_INQ_CB* p_cb = &btm_cb.ble_ctr_cb.inq_var; |
| |
| if (p_cb->adv_mode == BTM_BLE_ADV_ENABLE) { |
| tBTM_LE_RANDOM_CB* p_addr_cb = &btm_cb.ble_ctr_cb.addr_mgnt_cb; |
| RawAddress address = RawAddress::kEmpty; |
| tBLE_ADDR_TYPE init_addr_type = BLE_ADDR_PUBLIC; |
| tBLE_ADDR_TYPE own_addr_type = p_addr_cb->own_addr_type; |
| |
| btm_ble_stop_adv(); |
| |
| p_cb->evt_type = btm_set_conn_mode_adv_init_addr( |
| p_cb, address, &init_addr_type, &own_addr_type); |
| |
| /* slow adv mode never goes into directed adv */ |
| btsnd_hcic_ble_write_adv_params( |
| BTM_BLE_GAP_ADV_SLOW_INT, BTM_BLE_GAP_ADV_SLOW_INT, p_cb->evt_type, |
| own_addr_type, init_addr_type, address, p_cb->adv_chnl_map, p_cb->afp); |
| |
| btm_ble_start_adv(); |
| } |
| } |
| |
| static void btm_ble_inquiry_timer_gap_limited_discovery_timeout( |
| UNUSED_ATTR void* data) { |
| /* lim_timeout expired, limited discovery should exit now */ |
| btm_cb.btm_inq_vars.discoverable_mode &= ~BTM_BLE_LIMITED_DISCOVERABLE; |
| btm_ble_set_adv_flag(btm_cb.btm_inq_vars.connectable_mode, |
| btm_cb.btm_inq_vars.discoverable_mode); |
| } |
| |
| static void btm_ble_inquiry_timer_timeout(UNUSED_ATTR void* data) { |
| btm_ble_stop_inquiry(); |
| } |
| |
| static void btm_ble_observer_timer_timeout(UNUSED_ATTR void* data) { |
| btm_ble_stop_observe(); |
| } |
| |
| void btm_ble_refresh_raddr_timer_timeout(UNUSED_ATTR void* data) { |
| if (btm_cb.ble_ctr_cb.addr_mgnt_cb.own_addr_type == BLE_ADDR_RANDOM) { |
| /* refresh the random addr */ |
| btm_gen_resolvable_private_addr(base::Bind(&btm_gen_resolve_paddr_low)); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_read_remote_features_complete |
| * |
| * Description This function is called when the command complete message |
| * is received from the HCI for the read LE remote feature |
| * supported complete event. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_ble_read_remote_features_complete(uint8_t* p) { |
| BTM_TRACE_EVENT("%s", __func__); |
| |
| uint16_t handle; |
| uint8_t status; |
| STREAM_TO_UINT8(status, p); |
| STREAM_TO_UINT16(handle, p); |
| handle = handle & 0x0FFF; // only 12 bits meaningful |
| |
| if (status != HCI_SUCCESS) { |
| BTM_TRACE_ERROR("%s: failed for handle: 0x%04d, status 0x%02x", __func__, |
| handle, status); |
| if (status != HCI_ERR_UNSUPPORTED_REM_FEATURE) return; |
| } |
| |
| int idx = btm_handle_to_acl_index(handle); |
| if (idx == MAX_L2CAP_LINKS) { |
| BTM_TRACE_ERROR("%s: can't find acl for handle: 0x%04d", __func__, handle); |
| return; |
| } |
| |
| if (status == HCI_SUCCESS) { |
| STREAM_TO_ARRAY(btm_cb.acl_db[idx].peer_le_features, p, BD_FEATURES_LEN); |
| } |
| |
| btsnd_hcic_rmt_ver_req(handle); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_write_adv_enable_complete |
| * |
| * Description This function process the write adv enable command complete. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_ble_write_adv_enable_complete(uint8_t* p) { |
| tBTM_BLE_INQ_CB* p_cb = &btm_cb.ble_ctr_cb.inq_var; |
| |
| /* if write adv enable/disbale not succeed */ |
| if (*p != HCI_SUCCESS) { |
| /* toggle back the adv mode */ |
| p_cb->adv_mode = !p_cb->adv_mode; |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_dir_adv_tout |
| * |
| * Description when directed adv time out |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_ble_dir_adv_tout(void) { |
| btm_cb.ble_ctr_cb.inq_var.adv_mode = BTM_BLE_ADV_DISABLE; |
| |
| /* make device fall back into undirected adv mode by default */ |
| btm_cb.ble_ctr_cb.inq_var.directed_conn = false; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_set_topology_mask |
| * |
| * Description set BLE topology mask |
| * |
| * Returns true is request is allowed, false otherwise. |
| * |
| ******************************************************************************/ |
| bool btm_ble_set_topology_mask(tBTM_BLE_STATE_MASK request_state_mask) { |
| request_state_mask &= BTM_BLE_STATE_ALL_MASK; |
| btm_cb.ble_ctr_cb.cur_states |= (request_state_mask & BTM_BLE_STATE_ALL_MASK); |
| return true; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_clear_topology_mask |
| * |
| * Description Clear BLE topology bit mask |
| * |
| * Returns true is request is allowed, false otherwise. |
| * |
| ******************************************************************************/ |
| bool btm_ble_clear_topology_mask(tBTM_BLE_STATE_MASK request_state_mask) { |
| request_state_mask &= BTM_BLE_STATE_ALL_MASK; |
| btm_cb.ble_ctr_cb.cur_states &= ~request_state_mask; |
| return true; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_update_link_topology_mask |
| * |
| * Description This function update the link topology mask |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_ble_update_link_topology_mask(uint8_t link_role, bool increase) { |
| btm_ble_clear_topology_mask(BTM_BLE_STATE_ALL_CONN_MASK); |
| |
| if (increase) |
| btm_cb.ble_ctr_cb.link_count[link_role]++; |
| else if (btm_cb.ble_ctr_cb.link_count[link_role] > 0) |
| btm_cb.ble_ctr_cb.link_count[link_role]--; |
| |
| if (btm_cb.ble_ctr_cb.link_count[HCI_ROLE_MASTER]) |
| btm_ble_set_topology_mask(BTM_BLE_STATE_MASTER_BIT); |
| |
| if (btm_cb.ble_ctr_cb.link_count[HCI_ROLE_SLAVE]) |
| btm_ble_set_topology_mask(BTM_BLE_STATE_SLAVE_BIT); |
| |
| if (link_role == HCI_ROLE_SLAVE && increase) { |
| btm_cb.ble_ctr_cb.inq_var.adv_mode = BTM_BLE_ADV_DISABLE; |
| /* make device fall back into undirected adv mode by default */ |
| btm_cb.ble_ctr_cb.inq_var.directed_conn = BTM_BLE_CONNECT_EVT; |
| /* clear all adv states */ |
| btm_ble_clear_topology_mask(BTM_BLE_STATE_ALL_ADV_MASK); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_update_mode_operation |
| * |
| * Description This function update the GAP role operation when a link |
| * status is updated. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_ble_update_mode_operation(uint8_t link_role, const RawAddress* bd_addr, |
| uint8_t status) { |
| if (status == HCI_ERR_DIRECTED_ADVERTISING_TIMEOUT) { |
| btm_cb.ble_ctr_cb.inq_var.adv_mode = BTM_BLE_ADV_DISABLE; |
| /* make device fall back into undirected adv mode by default */ |
| btm_cb.ble_ctr_cb.inq_var.directed_conn = BTM_BLE_CONNECT_EVT; |
| /* clear all adv states */ |
| btm_ble_clear_topology_mask(BTM_BLE_STATE_ALL_ADV_MASK); |
| } |
| |
| if (btm_cb.ble_ctr_cb.inq_var.connectable_mode == BTM_BLE_CONNECTABLE) { |
| btm_ble_set_connectability(btm_cb.btm_inq_vars.connectable_mode | |
| btm_cb.ble_ctr_cb.inq_var.connectable_mode); |
| } |
| |
| /* in case of disconnected, we must cancel bgconn and restart |
| in order to add back device to white list in order to reconnect */ |
| btm_ble_bgconn_cancel_if_disconnected(*bd_addr); |
| |
| /* when no connection is attempted, and controller is not rejecting last |
| request |
| due to resource limitation, start next direct connection or background |
| connection |
| now in order */ |
| if (btm_ble_get_conn_st() == BLE_CONN_IDLE && |
| status != HCI_ERR_HOST_REJECT_RESOURCES && |
| status != HCI_ERR_MAX_NUM_OF_CONNECTIONS && |
| !btm_send_pending_direct_conn()) { |
| btm_ble_resume_bg_conn(); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_init |
| * |
| * Description Initialize the control block variable values. |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void btm_ble_init(void) { |
| tBTM_BLE_CB* p_cb = &btm_cb.ble_ctr_cb; |
| |
| BTM_TRACE_DEBUG("%s", __func__); |
| |
| alarm_free(p_cb->observer_timer); |
| alarm_free(p_cb->inq_var.fast_adv_timer); |
| memset(p_cb, 0, sizeof(tBTM_BLE_CB)); |
| memset(&(btm_cb.cmn_ble_vsc_cb), 0, sizeof(tBTM_BLE_VSC_CB)); |
| btm_cb.cmn_ble_vsc_cb.values_read = false; |
| |
| p_cb->observer_timer = alarm_new("btm_ble.observer_timer"); |
| p_cb->cur_states = 0; |
| p_cb->conn_pending_q = fixed_queue_new(SIZE_MAX); |
| |
| p_cb->inq_var.adv_mode = BTM_BLE_ADV_DISABLE; |
| p_cb->inq_var.scan_type = BTM_BLE_SCAN_MODE_NONE; |
| p_cb->inq_var.adv_chnl_map = BTM_BLE_DEFAULT_ADV_CHNL_MAP; |
| p_cb->inq_var.afp = BTM_BLE_DEFAULT_AFP; |
| p_cb->inq_var.sfp = BTM_BLE_DEFAULT_SFP; |
| p_cb->inq_var.connectable_mode = BTM_BLE_NON_CONNECTABLE; |
| p_cb->inq_var.discoverable_mode = BTM_BLE_NON_DISCOVERABLE; |
| p_cb->inq_var.fast_adv_timer = alarm_new("btm_ble_inq.fast_adv_timer"); |
| p_cb->inq_var.inquiry_timer = alarm_new("btm_ble_inq.inquiry_timer"); |
| |
| /* for background connection, reset connection params to be undefined */ |
| p_cb->scan_int = p_cb->scan_win = BTM_BLE_SCAN_PARAM_UNDEF; |
| |
| p_cb->inq_var.evt_type = BTM_BLE_NON_CONNECT_EVT; |
| |
| p_cb->addr_mgnt_cb.refresh_raddr_timer = |
| alarm_new("btm_ble_addr.refresh_raddr_timer"); |
| |
| #if (BLE_VND_INCLUDED == FALSE) |
| btm_ble_adv_filter_init(); |
| #endif |
| } |
| |
| /******************************************************************************* |
| * |
| * Function btm_ble_topology_check |
| * |
| * Description check to see requested state is supported. One state check |
| * at a time is supported |
| * |
| * Returns true is request is allowed, false otherwise. |
| * |
| ******************************************************************************/ |
| bool btm_ble_topology_check(tBTM_BLE_STATE_MASK request_state_mask) { |
| bool rt = false; |
| |
| uint8_t state_offset = 0; |
| uint16_t cur_states = btm_cb.ble_ctr_cb.cur_states; |
| uint8_t request_state = 0; |
| |
| /* check only one bit is set and within valid range */ |
| if (request_state_mask == BTM_BLE_STATE_INVALID || |
| request_state_mask > BTM_BLE_STATE_SCAN_ADV_BIT || |
| (request_state_mask & (request_state_mask - 1)) != 0) { |
| BTM_TRACE_ERROR("illegal state requested: %d", request_state_mask); |
| return rt; |
| } |
| |
| while (request_state_mask) { |
| request_state_mask >>= 1; |
| request_state++; |
| } |
| |
| /* check if the requested state is supported or not */ |
| uint8_t bit_num = btm_le_state_combo_tbl[0][request_state - 1]; |
| const uint8_t* ble_supported_states = |
| controller_get_interface()->get_ble_supported_states(); |
| |
| if (!BTM_LE_STATES_SUPPORTED(ble_supported_states, bit_num)) { |
| BTM_TRACE_ERROR("state requested not supported: %d", request_state); |
| return rt; |
| } |
| |
| rt = true; |
| /* make sure currently active states are all supported in conjunction with the |
| requested state. If the bit in table is UNSUPPORTED, the combination is not |
| supported */ |
| while (cur_states != 0) { |
| if (cur_states & 0x01) { |
| uint8_t bit_num = btm_le_state_combo_tbl[request_state][state_offset]; |
| if (bit_num != UNSUPPORTED) { |
| if (!BTM_LE_STATES_SUPPORTED(ble_supported_states, bit_num)) { |
| rt = false; |
| break; |
| } |
| } |
| } |
| cur_states >>= 1; |
| state_offset++; |
| } |
| return rt; |
| } |
