0700d27b70
1. make heart rate sensor example really work using nRF Toolbox HRM 2. add master device scan example 3. add gatt server example(seems not working)
281 lines
8.8 KiB
C
281 lines
8.8 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 "blehr_sens.h"
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#include "services/dis/ble_svc_dis.h"
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#include "services/bas/ble_svc_bas.h"
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/* UUID = 1bce38b3-d137-48ff-a13e-033e14c7a335 */
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static const ble_uuid128_t gatt_svr_svc_rw_demo_uuid
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= BLE_UUID128_INIT(0x35, 0xa3, 0xc7, 0x14, 0x3e, 0x03, 0x3e, 0xa1, 0xff,
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0x48, 0x37, 0xd1, 0xb3, 0x38, 0xce, 0x1b);
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/* UUID = 35f28386-3070-4f3b-ba38-27507e991762 */
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static const ble_uuid128_t gatt_svr_chr_rw_demo_write_uuid
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= BLE_UUID128_INIT(0x62, 0x17, 0x99, 0x7e, 0x50, 0x27, 0x38, 0xba, 0x3b,
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0x4f, 0x70, 0x30, 0x86, 0x83, 0xf2, 0x35);
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/* UUID = ccdd113f-40d5-4d68-86ac-a728dd82f4aa */
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static const ble_uuid128_t gatt_svr_chr_rw_demo_readonly_uuid
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= BLE_UUID128_INIT(0xaa, 0xf4, 0x82, 0xdd, 0x28, 0xa7, 0xac, 0x86, 0x68,
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0x4d, 0xd5, 0x40, 0x3f, 0x11, 0xdd, 0xcc);
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#define REPLY_BUFFER_SIZE 100
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static char reply[REPLY_BUFFER_SIZE];
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static char rm_demo_write_data[64] = "This characteristic is readable and writeable!";
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static int gatt_svr_chr_access_device_info_manufacturer(
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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 gatt_svr_chr_access_device_info_model(
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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 gatt_svr_chr_access_rw_demo(
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uint16_t conn_handle, uint16_t attr_handle,
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struct ble_gatt_access_ctxt *ctxt, void *arg);
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/* define several bluetooth services for our device */
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static const struct ble_gatt_svc_def gatt_svr_svcs[] = {
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/*
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* access_cb defines a callback for read and write access events on
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* given characteristics
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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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/* 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_manufacturer,
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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_model,
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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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/* Service: Read/Write Demo */
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.type = BLE_GATT_SVC_TYPE_PRIMARY,
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.uuid = (ble_uuid_t*) &gatt_svr_svc_rw_demo_uuid.u,
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.characteristics = (struct ble_gatt_chr_def[]) { {
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/* Characteristic: Read/Write Demo write */
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.uuid = (ble_uuid_t*) &gatt_svr_chr_rw_demo_write_uuid.u,
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.access_cb = gatt_svr_chr_access_rw_demo,
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.flags = BLE_GATT_CHR_F_READ | BLE_GATT_CHR_F_WRITE,
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}, {
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/* Characteristic: Read/Write Demo read only */
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.uuid = (ble_uuid_t*) &gatt_svr_chr_rw_demo_readonly_uuid.u,
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.access_cb = gatt_svr_chr_access_rw_demo,
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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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0, /* No more services */
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},
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};
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static int gatt_svr_chr_access_device_info_manufacturer(
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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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printf("service 'device info: manufacturer' callback triggered\n");
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snprintf(reply, REPLY_BUFFER_SIZE, "This is TencentOS tiny\n");
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printf("reply: %s\n", reply);
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int rc = os_mbuf_append(ctxt->om, reply, strlen(reply));
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printf("\n");
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return rc;
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}
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static int gatt_svr_chr_access_device_info_model(
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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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printf("service 'device info: model' callback triggered\n");
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snprintf(reply, REPLY_BUFFER_SIZE, "running TencentOS tiny on nordic ble board");
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printf("reply: %s\n", reply);
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int rc = os_mbuf_append(ctxt->om, reply, strlen(reply));
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printf("\n");
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return rc;
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}
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static int gatt_svr_chr_access_rw_demo(
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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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printf("service 'rw demo' callback triggered\n");
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int rc = 0;
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ble_uuid_t* write_uuid = (ble_uuid_t*) &gatt_svr_chr_rw_demo_write_uuid.u;
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ble_uuid_t* readonly_uuid = (ble_uuid_t*) &gatt_svr_chr_rw_demo_readonly_uuid.u;
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if (ble_uuid_cmp(ctxt->chr->uuid, write_uuid) == 0) {
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printf("access to characteristic 'rw demo (write)'\n");
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switch (ctxt->op) {
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case BLE_GATT_ACCESS_OP_READ_CHR:
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printf("read from characteristic\n");
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printf("current value of rm_demo_write_data: '%s'\n",
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rm_demo_write_data);
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/* send given data to the client */
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rc = os_mbuf_append(ctxt->om, &rm_demo_write_data, strlen(rm_demo_write_data));
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break;
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case BLE_GATT_ACCESS_OP_WRITE_CHR:
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printf("write to characteristic\n");
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printf("old value of rm_demo_write_data: '%s'\n", rm_demo_write_data);
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uint16_t om_len;
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om_len = OS_MBUF_PKTLEN(ctxt->om);
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/* read sent data */
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rc = ble_hs_mbuf_to_flat(ctxt->om, &rm_demo_write_data,
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sizeof rm_demo_write_data, &om_len);
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/* we need to null-terminate the received string */
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rm_demo_write_data[om_len] = '\0';
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printf("new value of rm_demo_write_data: '%s'\n",
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rm_demo_write_data);
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break;
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case BLE_GATT_ACCESS_OP_READ_DSC:
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printf("read from descriptor\n");
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break;
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case BLE_GATT_ACCESS_OP_WRITE_DSC:
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printf("write to descriptor\n");
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break;
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default:
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printf("unhandled operation!\n");
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rc = 1;
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break;
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}
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printf("\n");
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return rc;
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}
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else if (ble_uuid_cmp(ctxt->chr->uuid, readonly_uuid) == 0) {
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printf("access to characteristic 'rw demo (read-only)'\n");
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if (ctxt->op == BLE_GATT_ACCESS_OP_READ_CHR) {
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char random_digit;
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/* get random char between '0' and '9' */
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random_digit = 48 + (rand() % 10);
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snprintf(reply, REPLY_BUFFER_SIZE, "new random number: %c", random_digit);
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printf("reply: %s\n", reply);
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rc = os_mbuf_append(ctxt->om, &reply, strlen(reply));
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printf("\n");
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return rc;
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}
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return 0;
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}
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printf("unhandled uuid!\n");
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return 1;
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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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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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