/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. 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,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#include <assert.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include "nimble/nimble_port.h"
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#include "host/ble_hs.h"
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#include "host/util/util.h"
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#include "services/gap/ble_svc_gap.h"
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static const char gap_name[] = "nimble";
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static uint8_t own_addr_type;
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static void start_advertise(void);
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static void
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put_ad(uint8_t ad_type, uint8_t ad_len, const void *ad, uint8_t *buf,
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uint8_t *len)
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{
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buf[(*len)++] = ad_len + 1;
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buf[(*len)++] = ad_type;
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memcpy(&buf[*len], ad, ad_len);
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*len += ad_len;
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}
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static void
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update_ad(void)
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{
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uint8_t ad[BLE_HS_ADV_MAX_SZ];
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uint8_t ad_len = 0;
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uint8_t ad_flags = BLE_HS_ADV_F_DISC_GEN | BLE_HS_ADV_F_BREDR_UNSUP;
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put_ad(BLE_HS_ADV_TYPE_FLAGS, 1, &ad_flags, ad, &ad_len);
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put_ad(BLE_HS_ADV_TYPE_COMP_NAME, sizeof(gap_name), gap_name, ad, &ad_len);
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ble_gap_adv_set_data(ad, ad_len);
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}
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static int
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gap_event_cb(struct ble_gap_event *event, void *arg)
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{
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switch (event->type) {
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case BLE_GAP_EVENT_CONNECT:
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if (event->connect.status) {
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start_advertise();
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}
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break;
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case BLE_GAP_EVENT_DISCONNECT:
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start_advertise();
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break;
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}
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return 0;
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}
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static void
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start_advertise(void)
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{
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struct ble_gap_adv_params advp;
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int rc;
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update_ad();
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memset(&advp, 0, sizeof advp);
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advp.conn_mode = BLE_GAP_CONN_MODE_UND;
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advp.disc_mode = BLE_GAP_DISC_MODE_GEN;
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rc = ble_gap_adv_start(own_addr_type, NULL, BLE_HS_FOREVER,
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&advp, gap_event_cb, NULL);
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assert(rc == 0);
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}
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static void
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app_ble_sync_cb(void)
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{
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int rc;
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rc = ble_hs_util_ensure_addr(0);
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assert(rc == 0);
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rc = ble_hs_id_infer_auto(0, &own_addr_type);
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assert(rc == 0);
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start_advertise();
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}
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void
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nimble_host_task(void *param)
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{
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ble_hs_cfg.sync_cb = app_ble_sync_cb;
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ble_svc_gap_device_name_set(gap_name);
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nimble_port_run();
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}
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