Includes all the latest NimBLE stack changes from idf-v4.0 with few idf-v3.3 specific modifications. - Addition of nimble component as submodule (`nimble-1.1.0-idf-v3.3`), contains IDF v3.3 specific minor changes. - Example applications are identical to idf-v4.0 - Modification in `bt/Kconfig` to accommodate NimBLE as a BT host.
186 lines
5.6 KiB
C
186 lines
5.6 KiB
C
/*
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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 <stdio.h>
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#include <string.h>
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#include "host/ble_hs.h"
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#include "host/ble_uuid.h"
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#include "services/gap/ble_svc_gap.h"
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#include "services/gatt/ble_svc_gatt.h"
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#include "blehr_sens.h"
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static const char *manuf_name = "Apache Mynewt ESP32 devkitC";
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static const char *model_num = "Mynewt HR Sensor demo";
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uint16_t hrs_hrm_handle;
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static int
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gatt_svr_chr_access_heart_rate(uint16_t conn_handle, uint16_t attr_handle,
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struct ble_gatt_access_ctxt *ctxt, void *arg);
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static int
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gatt_svr_chr_access_device_info(uint16_t conn_handle, uint16_t attr_handle,
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struct ble_gatt_access_ctxt *ctxt, void *arg);
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static const struct ble_gatt_svc_def gatt_svr_svcs[] = {
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{
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/* Service: Heart-rate */
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.type = BLE_GATT_SVC_TYPE_PRIMARY,
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.uuid = BLE_UUID16_DECLARE(GATT_HRS_UUID),
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.characteristics = (struct ble_gatt_chr_def[])
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{ {
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/* Characteristic: Heart-rate measurement */
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.uuid = BLE_UUID16_DECLARE(GATT_HRS_MEASUREMENT_UUID),
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.access_cb = gatt_svr_chr_access_heart_rate,
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.val_handle = &hrs_hrm_handle,
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.flags = BLE_GATT_CHR_F_NOTIFY,
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}, {
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/* Characteristic: Body sensor location */
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.uuid = BLE_UUID16_DECLARE(GATT_HRS_BODY_SENSOR_LOC_UUID),
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.access_cb = gatt_svr_chr_access_heart_rate,
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.flags = BLE_GATT_CHR_F_READ,
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}, {
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0, /* No more characteristics in this service */
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},
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}
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},
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{
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/* Service: Device Information */
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.type = BLE_GATT_SVC_TYPE_PRIMARY,
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.uuid = BLE_UUID16_DECLARE(GATT_DEVICE_INFO_UUID),
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.characteristics = (struct ble_gatt_chr_def[])
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{ {
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/* Characteristic: * Manufacturer name */
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.uuid = BLE_UUID16_DECLARE(GATT_MANUFACTURER_NAME_UUID),
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.access_cb = gatt_svr_chr_access_device_info,
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.flags = BLE_GATT_CHR_F_READ,
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}, {
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/* Characteristic: Model number string */
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.uuid = BLE_UUID16_DECLARE(GATT_MODEL_NUMBER_UUID),
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.access_cb = gatt_svr_chr_access_device_info,
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.flags = BLE_GATT_CHR_F_READ,
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}, {
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0, /* No more characteristics in this service */
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},
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}
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},
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{
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0, /* No more services */
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},
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};
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static int
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gatt_svr_chr_access_heart_rate(uint16_t conn_handle, uint16_t attr_handle,
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struct ble_gatt_access_ctxt *ctxt, void *arg)
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{
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/* Sensor location, set to "Chest" */
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static uint8_t body_sens_loc = 0x01;
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uint16_t uuid;
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int rc;
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uuid = ble_uuid_u16(ctxt->chr->uuid);
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if (uuid == GATT_HRS_BODY_SENSOR_LOC_UUID) {
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rc = os_mbuf_append(ctxt->om, &body_sens_loc, sizeof(body_sens_loc));
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return rc == 0 ? 0 : BLE_ATT_ERR_INSUFFICIENT_RES;
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}
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assert(0);
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return BLE_ATT_ERR_UNLIKELY;
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}
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static int
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gatt_svr_chr_access_device_info(uint16_t conn_handle, uint16_t attr_handle,
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struct ble_gatt_access_ctxt *ctxt, void *arg)
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{
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uint16_t uuid;
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int rc;
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uuid = ble_uuid_u16(ctxt->chr->uuid);
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if (uuid == GATT_MODEL_NUMBER_UUID) {
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rc = os_mbuf_append(ctxt->om, model_num, strlen(model_num));
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return rc == 0 ? 0 : BLE_ATT_ERR_INSUFFICIENT_RES;
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}
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if (uuid == GATT_MANUFACTURER_NAME_UUID) {
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rc = os_mbuf_append(ctxt->om, manuf_name, strlen(manuf_name));
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return rc == 0 ? 0 : BLE_ATT_ERR_INSUFFICIENT_RES;
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}
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assert(0);
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return BLE_ATT_ERR_UNLIKELY;
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}
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void
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gatt_svr_register_cb(struct ble_gatt_register_ctxt *ctxt, void *arg)
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{
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char buf[BLE_UUID_STR_LEN];
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switch (ctxt->op) {
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case BLE_GATT_REGISTER_OP_SVC:
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MODLOG_DFLT(DEBUG, "registered service %s with handle=%d\n",
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ble_uuid_to_str(ctxt->svc.svc_def->uuid, buf),
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ctxt->svc.handle);
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break;
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case BLE_GATT_REGISTER_OP_CHR:
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MODLOG_DFLT(DEBUG, "registering characteristic %s with "
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"def_handle=%d val_handle=%d\n",
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ble_uuid_to_str(ctxt->chr.chr_def->uuid, buf),
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ctxt->chr.def_handle,
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ctxt->chr.val_handle);
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break;
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case BLE_GATT_REGISTER_OP_DSC:
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MODLOG_DFLT(DEBUG, "registering descriptor %s with handle=%d\n",
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ble_uuid_to_str(ctxt->dsc.dsc_def->uuid, buf),
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ctxt->dsc.handle);
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break;
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default:
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assert(0);
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break;
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}
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}
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int
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gatt_svr_init(void)
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{
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int rc;
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ble_svc_gap_init();
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ble_svc_gatt_init();
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rc = ble_gatts_count_cfg(gatt_svr_svcs);
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if (rc != 0) {
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return rc;
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}
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rc = ble_gatts_add_svcs(gatt_svr_svcs);
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if (rc != 0) {
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return rc;
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}
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return 0;
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}
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