/*
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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 "accelerometer.h"
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uint16_t c2002_handle;
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uint16_t c2003_handle;
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static int gatt_svr_chr_access_sensor(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_UUID128_DECLARE(ACCELEROMETERSERVICE_SERVICE_UUID),
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.characteristics = (struct ble_gatt_chr_def[]) { {
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/* Characteristic: Accelerometer Data characteristic */
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.uuid = BLE_UUID128_DECLARE(ACCELEROMETERDATA_CHARACTERISTIC_UUID),
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.access_cb = gatt_svr_chr_access_sensor,
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.val_handle = &c2003_handle,
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.flags = BLE_GATT_CHR_F_NOTIFY,
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}, {
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/* Characteristic: Accelerometer Period characteristic */
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.uuid = BLE_UUID128_DECLARE(ACCELEROMETERPERIOD_CHARACTERISTIC_UUID),
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.access_cb = gatt_svr_chr_access_sensor,
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.val_handle = &c2002_handle,
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.flags = BLE_GATT_CHR_F_READ | BLE_GATT_CHR_F_WRITE,
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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_sensor(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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int rc;
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uint16_t om_len;
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uint8_t buf[128];
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memset(buf, 0, sizeof(buf));
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if (attr_handle == c2003_handle) {
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return 0; /* do not implement read and write */
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} else if (attr_handle == c2002_handle) {
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om_len = OS_MBUF_PKTLEN(ctxt->om);
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rc = ble_hs_mbuf_to_flat(ctxt->om, buf, sizeof(buf), &om_len);
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ble_svc_acc_write(buf, om_len);
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if (rc != 0) {
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return BLE_ATT_ERR_UNLIKELY;
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}
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}
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return rc;
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}
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void 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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printf("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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printf("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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printf("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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__WEAK int ble_svc_acc_write(uint8_t *p, uint32_t len)
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{
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return 0;
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}
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int 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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void ble_svc_accelerometer_init(void)
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{
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int rc;
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rc = gatt_svr_init();
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assert(rc == 0);
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}
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