/******************************************************************************
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*
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* Copyright 2009-2014 Broadcom Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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/*******************************************************************************
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*
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* Filename: btif_gatt_client.c
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*
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* Description: GATT client implementation
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*
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******************************************************************************/
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#define LOG_TAG "bt_btif_gattc"
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#include <base/at_exit.h>
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#include <base/bind.h>
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#include <base/threading/thread.h>
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#include <errno.h>
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#include <hardware/bluetooth.h>
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#include <stdlib.h>
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#include <string.h>
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#include "device/include/controller.h"
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#include "btif_common.h"
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#include "btif_util.h"
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#include <hardware/bt_gatt.h>
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#include "bta_api.h"
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#include "bta_gatt_api.h"
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#include "btif_config.h"
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#include "btif_dm.h"
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#include "btif_gatt.h"
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#include "btif_gatt_util.h"
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#include "btif_storage.h"
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#include "osi/include/log.h"
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#include "stack/include/btu.h"
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#include "vendor_api.h"
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using base::Bind;
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using base::Owned;
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using bluetooth::Uuid;
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using std::vector;
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extern bt_status_t btif_gattc_test_command_impl(
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int command, const btgatt_test_params_t* params);
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extern const btgatt_callbacks_t* bt_gatt_callbacks;
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/*******************************************************************************
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* Constants & Macros
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******************************************************************************/
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#define CLI_CBACK_IN_JNI(P_CBACK, ...) \
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do { \
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if (bt_gatt_callbacks && bt_gatt_callbacks->client->P_CBACK) { \
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BTIF_TRACE_API("HAL bt_gatt_callbacks->client->%s", #P_CBACK); \
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do_in_jni_thread(Bind(bt_gatt_callbacks->client->P_CBACK, __VA_ARGS__)); \
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} else { \
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ASSERTC(0, "Callback is NULL", 0); \
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} \
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} while (0)
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#define CHECK_BTGATT_INIT() \
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do { \
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if (bt_gatt_callbacks == NULL) { \
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LOG_WARN(LOG_TAG, "%s: BTGATT not initialized", __func__); \
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return BT_STATUS_NOT_READY; \
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} else { \
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LOG_VERBOSE(LOG_TAG, "%s", __func__); \
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} \
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} while (0)
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#define BLE_RESOLVE_ADDR_MSB \
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0x40 /* bit7, bit6 is 01 to be resolvable random \
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*/
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#define BLE_RESOLVE_ADDR_MASK 0xc0 /* bit 6, and bit7 */
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inline bool BTM_BLE_IS_RESOLVE_BDA(const RawAddress& x) {
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return ((x.address)[0] & BLE_RESOLVE_ADDR_MASK) == BLE_RESOLVE_ADDR_MSB;
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}
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namespace {
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uint8_t rssi_request_client_if;
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void btif_gattc_upstreams_evt(uint16_t event, char* p_param) {
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LOG_VERBOSE(LOG_TAG, "%s: Event %d", __func__, event);
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tBTA_GATTC* p_data = (tBTA_GATTC*)p_param;
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switch (event) {
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case BTA_GATTC_DEREG_EVT:
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break;
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case BTA_GATTC_EXEC_EVT: {
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HAL_CBACK(bt_gatt_callbacks, client->execute_write_cb,
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p_data->exec_cmpl.conn_id, p_data->exec_cmpl.status);
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break;
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}
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case BTA_GATTC_SEARCH_CMPL_EVT: {
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HAL_CBACK(bt_gatt_callbacks, client->search_complete_cb,
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p_data->search_cmpl.conn_id, p_data->search_cmpl.status);
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break;
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}
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case BTA_GATTC_NOTIF_EVT: {
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btgatt_notify_params_t data;
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data.bda = p_data->notify.bda;
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memcpy(data.value, p_data->notify.value, p_data->notify.len);
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data.handle = p_data->notify.handle;
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data.is_notify = p_data->notify.is_notify;
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data.len = p_data->notify.len;
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HAL_CBACK(bt_gatt_callbacks, client->notify_cb, p_data->notify.conn_id,
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data);
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if (!p_data->notify.is_notify)
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BTA_GATTC_SendIndConfirm(p_data->notify.conn_id, p_data->notify.handle);
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break;
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}
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case BTA_GATTC_OPEN_EVT: {
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DVLOG(1) << "BTA_GATTC_OPEN_EVT " << p_data->open.remote_bda;
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HAL_CBACK(bt_gatt_callbacks, client->open_cb, p_data->open.conn_id,
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p_data->open.status, p_data->open.client_if,
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p_data->open.remote_bda);
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if (GATT_DEF_BLE_MTU_SIZE != p_data->open.mtu && p_data->open.mtu) {
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HAL_CBACK(bt_gatt_callbacks, client->configure_mtu_cb,
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p_data->open.conn_id, p_data->open.status, p_data->open.mtu);
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}
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if (p_data->open.status == GATT_SUCCESS)
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btif_gatt_check_encrypted_link(p_data->open.remote_bda,
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p_data->open.transport);
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break;
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}
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case BTA_GATTC_CLOSE_EVT: {
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HAL_CBACK(bt_gatt_callbacks, client->close_cb, p_data->close.conn_id,
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p_data->status, p_data->close.client_if,
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p_data->close.remote_bda);
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break;
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}
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case BTA_GATTC_ACL_EVT:
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LOG_DEBUG(LOG_TAG, "BTA_GATTC_ACL_EVT: status = %d", p_data->status);
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/* Ignore for now */
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break;
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case BTA_GATTC_SEARCH_RES_EVT:
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break;
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case BTA_GATTC_CANCEL_OPEN_EVT:
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break;
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case BTA_GATTC_CFG_MTU_EVT: {
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HAL_CBACK(bt_gatt_callbacks, client->configure_mtu_cb,
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p_data->cfg_mtu.conn_id, p_data->cfg_mtu.status,
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p_data->cfg_mtu.mtu);
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break;
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}
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case BTA_GATTC_CONGEST_EVT:
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HAL_CBACK(bt_gatt_callbacks, client->congestion_cb,
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p_data->congest.conn_id, p_data->congest.congested);
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break;
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case BTA_GATTC_PHY_UPDATE_EVT:
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HAL_CBACK(bt_gatt_callbacks, client->phy_updated_cb,
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p_data->phy_update.conn_id, p_data->phy_update.tx_phy,
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p_data->phy_update.rx_phy, p_data->phy_update.status);
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break;
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case BTA_GATTC_CONN_UPDATE_EVT:
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HAL_CBACK(bt_gatt_callbacks, client->conn_updated_cb,
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p_data->conn_update.conn_id, p_data->conn_update.interval,
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p_data->conn_update.latency, p_data->conn_update.timeout,
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p_data->conn_update.status);
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break;
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default:
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LOG_ERROR(LOG_TAG, "%s: Unhandled event (%d)!", __func__, event);
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break;
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}
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}
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void bta_gattc_cback(tBTA_GATTC_EVT event, tBTA_GATTC* p_data) {
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bt_status_t status =
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btif_transfer_context(btif_gattc_upstreams_evt, (uint16_t)event,
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(char*)p_data, sizeof(tBTA_GATTC), NULL);
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ASSERTC(status == BT_STATUS_SUCCESS, "Context transfer failed!", status);
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}
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void btm_read_rssi_cb(void* p_void) {
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tBTM_RSSI_RESULT* p_result = (tBTM_RSSI_RESULT*)p_void;
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if (!p_result) return;
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CLI_CBACK_IN_JNI(read_remote_rssi_cb, rssi_request_client_if,
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p_result->rem_bda, p_result->rssi, p_result->status);
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}
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/*******************************************************************************
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* Client API Functions
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******************************************************************************/
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bt_status_t btif_gattc_register_app(const Uuid& uuid) {
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CHECK_BTGATT_INIT();
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return do_in_jni_thread(Bind(
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[](const Uuid& uuid) {
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BTA_GATTC_AppRegister(
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bta_gattc_cback,
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base::Bind(
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[](const Uuid& uuid, uint8_t client_id, uint8_t status) {
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do_in_jni_thread(Bind(
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[](const Uuid& uuid, uint8_t client_id, uint8_t status) {
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HAL_CBACK(bt_gatt_callbacks, client->register_client_cb,
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status, client_id, uuid);
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},
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uuid, client_id, status));
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},
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uuid));
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},
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uuid));
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}
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void btif_gattc_unregister_app_impl(int client_if) {
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BTA_GATTC_AppDeregister(client_if);
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}
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bt_status_t btif_gattc_unregister_app(int client_if) {
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CHECK_BTGATT_INIT();
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return do_in_jni_thread(Bind(&btif_gattc_unregister_app_impl, client_if));
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}
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void btif_gattc_open_impl(int client_if, RawAddress address, bool is_direct,
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int transport_p, bool opportunistic,
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int initiating_phys) {
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// Ensure device is in inquiry database
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int addr_type = 0;
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int device_type = 0;
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tGATT_TRANSPORT transport = (tGATT_TRANSPORT)GATT_TRANSPORT_LE;
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if (btif_get_address_type(address, &addr_type) &&
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btif_get_device_type(address, &device_type) &&
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device_type != BT_DEVICE_TYPE_BREDR) {
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BTA_DmAddBleDevice(address, addr_type, device_type);
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}
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// Check for background connections
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if (!is_direct) {
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// Check for privacy 1.0 and 1.1 controller and do not start background
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// connection if RPA offloading is not supported, since it will not
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// connect after change of random address
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if (!controller_get_interface()->supports_ble_privacy() &&
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(addr_type == BLE_ADDR_RANDOM) && BTM_BLE_IS_RESOLVE_BDA(address)) {
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tBTM_BLE_VSC_CB vnd_capabilities;
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BTM_BleGetVendorCapabilities(&vnd_capabilities);
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if (!vnd_capabilities.rpa_offloading) {
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HAL_CBACK(bt_gatt_callbacks, client->open_cb, 0, BT_STATUS_UNSUPPORTED,
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client_if, address);
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return;
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}
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}
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}
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// Determine transport
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if (transport_p != GATT_TRANSPORT_AUTO) {
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transport = transport_p;
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} else {
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switch (device_type) {
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case BT_DEVICE_TYPE_BREDR:
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transport = GATT_TRANSPORT_BR_EDR;
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break;
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case BT_DEVICE_TYPE_BLE:
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transport = GATT_TRANSPORT_LE;
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break;
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case BT_DEVICE_TYPE_DUMO:
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if (transport_p == GATT_TRANSPORT_LE)
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transport = GATT_TRANSPORT_LE;
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else
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transport = GATT_TRANSPORT_BR_EDR;
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break;
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}
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}
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// Connect!
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BTIF_TRACE_DEBUG("%s Transport=%d, device type=%d, phy=%d", __func__,
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transport, device_type, initiating_phys);
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BTA_GATTC_Open(client_if, address, is_direct, transport, opportunistic,
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initiating_phys);
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}
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bt_status_t btif_gattc_open(int client_if, const RawAddress& bd_addr,
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bool is_direct, int transport, bool opportunistic,
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int initiating_phys) {
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CHECK_BTGATT_INIT();
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// Closure will own this value and free it.
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return do_in_jni_thread(Bind(&btif_gattc_open_impl, client_if, bd_addr,
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is_direct, transport, opportunistic,
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initiating_phys));
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}
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void btif_gattc_close_impl(int client_if, RawAddress address, int conn_id) {
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// Disconnect established connections
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if (conn_id != 0)
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BTA_GATTC_Close(conn_id);
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else
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BTA_GATTC_CancelOpen(client_if, address, true);
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// Cancel pending background connections (remove from whitelist)
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BTA_GATTC_CancelOpen(client_if, address, false);
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}
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bt_status_t btif_gattc_close(int client_if, const RawAddress& bd_addr,
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int conn_id) {
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CHECK_BTGATT_INIT();
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return do_in_jni_thread(
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Bind(&btif_gattc_close_impl, client_if, bd_addr, conn_id));
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}
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bt_status_t btif_gattc_refresh(int client_if, const RawAddress& bd_addr) {
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CHECK_BTGATT_INIT();
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return do_in_jni_thread(Bind(&BTA_GATTC_Refresh, bd_addr));
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}
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bt_status_t btif_gattc_search_service(int conn_id, const Uuid* filter_uuid) {
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CHECK_BTGATT_INIT();
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if (filter_uuid) {
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Uuid* uuid = new Uuid(*filter_uuid);
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return do_in_jni_thread(
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Bind(&BTA_GATTC_ServiceSearchRequest, conn_id, base::Owned(uuid)));
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} else {
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return do_in_jni_thread(
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Bind(&BTA_GATTC_ServiceSearchRequest, conn_id, nullptr));
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}
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}
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void btif_gattc_discover_service_by_uuid(int conn_id, const Uuid& uuid) {
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do_in_jni_thread(Bind(&BTA_GATTC_DiscoverServiceByUuid, conn_id, uuid));
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}
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void btif_gattc_get_gatt_db_impl(int conn_id) {
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btgatt_db_element_t* db = NULL;
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int count = 0;
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BTA_GATTC_GetGattDb(conn_id, 0x0000, 0xFFFF, &db, &count);
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HAL_CBACK(bt_gatt_callbacks, client->get_gatt_db_cb, conn_id, db, count);
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osi_free(db);
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}
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bt_status_t btif_gattc_get_gatt_db(int conn_id) {
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CHECK_BTGATT_INIT();
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return do_in_jni_thread(Bind(&btif_gattc_get_gatt_db_impl, conn_id));
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}
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void read_char_cb(uint16_t conn_id, tGATT_STATUS status, uint16_t handle,
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uint16_t len, uint8_t* value, void* data) {
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btgatt_read_params_t* params = new btgatt_read_params_t;
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params->value_type = 0x00 /* GATTC_READ_VALUE_TYPE_VALUE */;
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params->status = status;
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params->handle = handle;
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params->value.len = len;
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CHECK(len <= BTGATT_MAX_ATTR_LEN);
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if (len > 0) memcpy(params->value.value, value, len);
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// clang-tidy analyzer complains about |params| is leaked. It doesn't know
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// that |param| will be freed by the callback function.
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CLI_CBACK_IN_JNI(read_characteristic_cb, conn_id, status, /* NOLINT */
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base::Owned(params));
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}
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bt_status_t btif_gattc_read_char(int conn_id, uint16_t handle, int auth_req) {
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CHECK_BTGATT_INIT();
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return do_in_jni_thread(Bind(&BTA_GATTC_ReadCharacteristic, conn_id, handle,
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auth_req, read_char_cb, nullptr));
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}
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void read_using_char_uuid_cb(uint16_t conn_id, tGATT_STATUS status,
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uint16_t handle, uint16_t len, uint8_t* value,
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void* data) {
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btgatt_read_params_t* params = new btgatt_read_params_t;
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params->value_type = 0x00 /* GATTC_READ_VALUE_TYPE_VALUE */;
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params->status = status;
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params->handle = handle;
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params->value.len = len;
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CHECK(len <= BTGATT_MAX_ATTR_LEN);
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if (len > 0) memcpy(params->value.value, value, len);
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// clang-tidy analyzer complains about |params| is leaked. It doesn't know
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// that |param| will be freed by the callback function.
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CLI_CBACK_IN_JNI(read_characteristic_cb, conn_id, status, /* NOLINT */
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base::Owned(params));
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}
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bt_status_t btif_gattc_read_using_char_uuid(int conn_id, const Uuid& uuid,
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uint16_t s_handle,
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uint16_t e_handle, int auth_req) {
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CHECK_BTGATT_INIT();
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return do_in_jni_thread(Bind(&BTA_GATTC_ReadUsingCharUuid, conn_id, uuid,
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s_handle, e_handle, auth_req,
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read_using_char_uuid_cb, nullptr));
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}
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void read_desc_cb(uint16_t conn_id, tGATT_STATUS status, uint16_t handle,
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uint16_t len, uint8_t* value, void* data) {
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btgatt_read_params_t params;
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params.value_type = 0x00 /* GATTC_READ_VALUE_TYPE_VALUE */;
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params.status = status;
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params.handle = handle;
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params.value.len = len;
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CHECK(len <= BTGATT_MAX_ATTR_LEN);
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if (len > 0) memcpy(params.value.value, value, len);
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CLI_CBACK_IN_JNI(read_descriptor_cb, conn_id, status, params);
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}
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bt_status_t btif_gattc_read_char_descr(int conn_id, uint16_t handle,
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int auth_req) {
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CHECK_BTGATT_INIT();
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return do_in_jni_thread(Bind(&BTA_GATTC_ReadCharDescr, conn_id, handle,
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auth_req, read_desc_cb, nullptr));
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}
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void write_char_cb(uint16_t conn_id, tGATT_STATUS status, uint16_t handle,
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void* data) {
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CLI_CBACK_IN_JNI(write_characteristic_cb, conn_id, status, handle);
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}
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bt_status_t btif_gattc_write_char(int conn_id, uint16_t handle, int write_type,
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int auth_req, vector<uint8_t> value) {
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CHECK_BTGATT_INIT();
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if (value.size() > BTGATT_MAX_ATTR_LEN) value.resize(BTGATT_MAX_ATTR_LEN);
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return do_in_jni_thread(Bind(&BTA_GATTC_WriteCharValue, conn_id, handle,
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write_type, std::move(value), auth_req,
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write_char_cb, nullptr));
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}
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void write_descr_cb(uint16_t conn_id, tGATT_STATUS status, uint16_t handle,
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void* data) {
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CLI_CBACK_IN_JNI(write_descriptor_cb, conn_id, status, handle);
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}
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bt_status_t btif_gattc_write_char_descr(int conn_id, uint16_t handle,
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int auth_req, vector<uint8_t> value) {
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CHECK_BTGATT_INIT();
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if (value.size() > BTGATT_MAX_ATTR_LEN) value.resize(BTGATT_MAX_ATTR_LEN);
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return do_in_jni_thread(Bind(&BTA_GATTC_WriteCharDescr, conn_id, handle,
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std::move(value), auth_req, write_descr_cb,
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nullptr));
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}
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bt_status_t btif_gattc_execute_write(int conn_id, int execute) {
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CHECK_BTGATT_INIT();
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return do_in_jni_thread(
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Bind(&BTA_GATTC_ExecuteWrite, conn_id, (uint8_t)execute));
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}
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void btif_gattc_reg_for_notification_impl(tGATT_IF client_if,
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const RawAddress& bda,
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uint16_t handle) {
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tGATT_STATUS status =
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BTA_GATTC_RegisterForNotifications(client_if, bda, handle);
|
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// TODO(jpawlowski): conn_id is currently unused
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HAL_CBACK(bt_gatt_callbacks, client->register_for_notification_cb,
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/* conn_id */ 0, 1, status, handle);
|
}
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bt_status_t btif_gattc_reg_for_notification(int client_if,
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const RawAddress& bd_addr,
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uint16_t handle) {
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CHECK_BTGATT_INIT();
|
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return do_in_jni_thread(
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Bind(base::IgnoreResult(&btif_gattc_reg_for_notification_impl), client_if,
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bd_addr, handle));
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}
|
|
void btif_gattc_dereg_for_notification_impl(tGATT_IF client_if,
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const RawAddress& bda,
|
uint16_t handle) {
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tGATT_STATUS status =
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BTA_GATTC_DeregisterForNotifications(client_if, bda, handle);
|
|
// TODO(jpawlowski): conn_id is currently unused
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HAL_CBACK(bt_gatt_callbacks, client->register_for_notification_cb,
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/* conn_id */ 0, 0, status, handle);
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}
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bt_status_t btif_gattc_dereg_for_notification(int client_if,
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const RawAddress& bd_addr,
|
uint16_t handle) {
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CHECK_BTGATT_INIT();
|
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return do_in_jni_thread(
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Bind(base::IgnoreResult(&btif_gattc_dereg_for_notification_impl),
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client_if, bd_addr, handle));
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}
|
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bt_status_t btif_gattc_read_remote_rssi(int client_if,
|
const RawAddress& bd_addr) {
|
CHECK_BTGATT_INIT();
|
rssi_request_client_if = client_if;
|
|
return do_in_jni_thread(
|
Bind(base::IgnoreResult(&BTM_ReadRSSI), bd_addr, btm_read_rssi_cb));
|
}
|
|
bt_status_t btif_gattc_configure_mtu(int conn_id, int mtu) {
|
CHECK_BTGATT_INIT();
|
return do_in_jni_thread(
|
Bind(base::IgnoreResult(&BTA_GATTC_ConfigureMTU), conn_id, mtu));
|
}
|
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void btif_gattc_conn_parameter_update_impl(RawAddress addr, int min_interval,
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int max_interval, int latency,
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int timeout, uint16_t min_ce_len,
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uint16_t max_ce_len) {
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if (BTA_DmGetConnectionState(addr))
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BTA_DmBleUpdateConnectionParams(addr, min_interval, max_interval, latency,
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timeout, min_ce_len, max_ce_len);
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else
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BTA_DmSetBlePrefConnParams(addr, min_interval, max_interval, latency,
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timeout);
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}
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bt_status_t btif_gattc_conn_parameter_update(const RawAddress& bd_addr,
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int min_interval, int max_interval,
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int latency, int timeout,
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uint16_t min_ce_len,
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uint16_t max_ce_len) {
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CHECK_BTGATT_INIT();
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return do_in_jni_thread(Bind(
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base::IgnoreResult(&btif_gattc_conn_parameter_update_impl), bd_addr,
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min_interval, max_interval, latency, timeout, min_ce_len, max_ce_len));
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}
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bt_status_t btif_gattc_set_preferred_phy(const RawAddress& bd_addr,
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uint8_t tx_phy, uint8_t rx_phy,
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uint16_t phy_options) {
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CHECK_BTGATT_INIT();
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do_in_main_thread(FROM_HERE,
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Bind(&BTM_BleSetPhy, bd_addr, tx_phy, rx_phy, phy_options));
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return BT_STATUS_SUCCESS;
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}
|
|
bt_status_t btif_gattc_read_phy(
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const RawAddress& bd_addr,
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base::Callback<void(uint8_t tx_phy, uint8_t rx_phy, uint8_t status)> cb) {
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CHECK_BTGATT_INIT();
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do_in_main_thread(FROM_HERE, Bind(&BTM_BleReadPhy, bd_addr,
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jni_thread_wrapper(FROM_HERE, cb)));
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return BT_STATUS_SUCCESS;
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}
|
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int btif_gattc_get_device_type(const RawAddress& bd_addr) {
|
int device_type = 0;
|
|
if (btif_config_get_int(bd_addr.ToString().c_str(), "DevType", &device_type))
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return device_type;
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return 0;
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}
|
|
bt_status_t btif_gattc_test_command(int command,
|
const btgatt_test_params_t& params) {
|
return btif_gattc_test_command_impl(command, ¶ms);
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}
|
|
} // namespace
|
|
const btgatt_client_interface_t btgattClientInterface = {
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btif_gattc_register_app,
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btif_gattc_unregister_app,
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btif_gattc_open,
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btif_gattc_close,
|
btif_gattc_refresh,
|
btif_gattc_search_service,
|
btif_gattc_discover_service_by_uuid,
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btif_gattc_read_char,
|
btif_gattc_read_using_char_uuid,
|
btif_gattc_write_char,
|
btif_gattc_read_char_descr,
|
btif_gattc_write_char_descr,
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btif_gattc_execute_write,
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btif_gattc_reg_for_notification,
|
btif_gattc_dereg_for_notification,
|
btif_gattc_read_remote_rssi,
|
btif_gattc_get_device_type,
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btif_gattc_configure_mtu,
|
btif_gattc_conn_parameter_update,
|
btif_gattc_set_preferred_phy,
|
btif_gattc_read_phy,
|
btif_gattc_test_command,
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btif_gattc_get_gatt_db};
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