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RIOT/examples/nimble_gatt/main.c
chrysn 756a384442 makefiles, treewide: Remove MCU variable
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/*
* Copyright (C) 2018 Freie Universität Berlin
* 2018 Codecoup
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup examples
* @{
*
* @file
* @brief BLE peripheral example using NimBLE
*
* Have a more detailed look at the api here:
* https://mynewt.apache.org/latest/tutorials/ble/bleprph/bleprph.html
*
* More examples (not ready to run on RIOT) can be found here:
* https://github.com/apache/mynewt-nimble/tree/master/apps
*
* Test this application e.g. with Nordics "nRF Connect"-App
* iOS: https://itunes.apple.com/us/app/nrf-connect/id1054362403
* Android: https://play.google.com/store/apps/details?id=no.nordicsemi.android.mcp
*
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
* @author Andrzej Kaczmarek <andrzej.kaczmarek@codecoup.pl>
* @author Hendrik van Essen <hendrik.ve@fu-berlin.de>
*
* @}
*/
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "nimble_riot.h"
#include "nimble_autoadv.h"
#include "host/ble_hs.h"
#include "host/util/util.h"
#include "host/ble_gatt.h"
#include "services/gap/ble_svc_gap.h"
#include "services/gatt/ble_svc_gatt.h"
#define GATT_DEVICE_INFO_UUID 0x180A
#define GATT_MANUFACTURER_NAME_UUID 0x2A29
#define GATT_MODEL_NUMBER_UUID 0x2A24
#define STR_ANSWER_BUFFER_SIZE 100
/* UUID = 1bce38b3-d137-48ff-a13e-033e14c7a335 */
static const ble_uuid128_t gatt_svr_svc_rw_demo_uuid
= BLE_UUID128_INIT(0x35, 0xa3, 0xc7, 0x14, 0x3e, 0x03, 0x3e, 0xa1, 0xff,
0x48, 0x37, 0xd1, 0xb3, 0x38, 0xce, 0x1b);
/* UUID = 35f28386-3070-4f3b-ba38-27507e991762 */
static const ble_uuid128_t gatt_svr_chr_rw_demo_write_uuid
= BLE_UUID128_INIT(0x62, 0x17, 0x99, 0x7e, 0x50, 0x27, 0x38, 0xba, 0x3b,
0x4f, 0x70, 0x30, 0x86, 0x83, 0xf2, 0x35);
/* UUID = ccdd113f-40d5-4d68-86ac-a728dd82f4aa */
static const ble_uuid128_t gatt_svr_chr_rw_demo_readonly_uuid
= BLE_UUID128_INIT(0xaa, 0xf4, 0x82, 0xdd, 0x28, 0xa7, 0xac, 0x86, 0x68,
0x4d, 0xd5, 0x40, 0x3f, 0x11, 0xdd, 0xcc);
static char rm_demo_write_data[64] = "This characteristic is read- and writeable!";
static int gatt_svr_chr_access_device_info_manufacturer(
uint16_t conn_handle, uint16_t attr_handle,
struct ble_gatt_access_ctxt *ctxt, void *arg);
static int gatt_svr_chr_access_device_info_model(
uint16_t conn_handle, uint16_t attr_handle,
struct ble_gatt_access_ctxt *ctxt, void *arg);
static int gatt_svr_chr_access_rw_demo(
uint16_t conn_handle, uint16_t attr_handle,
struct ble_gatt_access_ctxt *ctxt, void *arg);
static char str_answer[STR_ANSWER_BUFFER_SIZE];
/* define several bluetooth services for our device */
static const struct ble_gatt_svc_def gatt_svr_svcs[] = {
/*
* access_cb defines a callback for read and write access events on
* given characteristics
*/
{
/* Service: Device Information */
.type = BLE_GATT_SVC_TYPE_PRIMARY,
.uuid = BLE_UUID16_DECLARE(GATT_DEVICE_INFO_UUID),
.characteristics = (struct ble_gatt_chr_def[]) { {
/* Characteristic: * Manufacturer name */
.uuid = BLE_UUID16_DECLARE(GATT_MANUFACTURER_NAME_UUID),
.access_cb = gatt_svr_chr_access_device_info_manufacturer,
.flags = BLE_GATT_CHR_F_READ,
}, {
/* Characteristic: Model number string */
.uuid = BLE_UUID16_DECLARE(GATT_MODEL_NUMBER_UUID),
.access_cb = gatt_svr_chr_access_device_info_model,
.flags = BLE_GATT_CHR_F_READ,
}, {
0, /* No more characteristics in this service */
}, }
},
{
/* Service: Read/Write Demo */
.type = BLE_GATT_SVC_TYPE_PRIMARY,
.uuid = (ble_uuid_t*) &gatt_svr_svc_rw_demo_uuid.u,
.characteristics = (struct ble_gatt_chr_def[]) { {
/* Characteristic: Read/Write Demo write */
.uuid = (ble_uuid_t*) &gatt_svr_chr_rw_demo_write_uuid.u,
.access_cb = gatt_svr_chr_access_rw_demo,
.flags = BLE_GATT_CHR_F_READ | BLE_GATT_CHR_F_WRITE,
}, {
/* Characteristic: Read/Write Demo read only */
.uuid = (ble_uuid_t*) &gatt_svr_chr_rw_demo_readonly_uuid.u,
.access_cb = gatt_svr_chr_access_rw_demo,
.flags = BLE_GATT_CHR_F_READ,
}, {
0, /* No more characteristics in this service */
}, }
},
{
0, /* No more services */
},
};
static int gatt_svr_chr_access_device_info_manufacturer(
uint16_t conn_handle, uint16_t attr_handle,
struct ble_gatt_access_ctxt *ctxt, void *arg)
{
puts("service 'device info: manufacturer' callback triggered");
(void) conn_handle;
(void) attr_handle;
(void) arg;
snprintf(str_answer, STR_ANSWER_BUFFER_SIZE,
"This is RIOT! (Version: %s)\n", RIOT_VERSION);
puts(str_answer);
int rc = os_mbuf_append(ctxt->om, str_answer, strlen(str_answer));
puts("");
return rc;
}
static int gatt_svr_chr_access_device_info_model(
uint16_t conn_handle, uint16_t attr_handle,
struct ble_gatt_access_ctxt *ctxt, void *arg)
{
puts("service 'device info: model' callback triggered");
(void) conn_handle;
(void) attr_handle;
(void) arg;
snprintf(str_answer, STR_ANSWER_BUFFER_SIZE,
"You are running RIOT on a(n) %s board, "
"which features a(n) %s CPU.", RIOT_BOARD, RIOT_CPU);
puts(str_answer);
int rc = os_mbuf_append(ctxt->om, str_answer, strlen(str_answer));
puts("");
return rc;
}
static int gatt_svr_chr_access_rw_demo(
uint16_t conn_handle, uint16_t attr_handle,
struct ble_gatt_access_ctxt *ctxt, void *arg)
{
puts("service 'rw demo' callback triggered");
(void) conn_handle;
(void) attr_handle;
(void) arg;
int rc = 0;
ble_uuid_t* write_uuid = (ble_uuid_t*) &gatt_svr_chr_rw_demo_write_uuid.u;
ble_uuid_t* readonly_uuid = (ble_uuid_t*) &gatt_svr_chr_rw_demo_readonly_uuid.u;
if (ble_uuid_cmp(ctxt->chr->uuid, write_uuid) == 0) {
puts("access to characteristic 'rw demo (write)'");
switch (ctxt->op) {
case BLE_GATT_ACCESS_OP_READ_CHR:
puts("read from characteristic");
printf("current value of rm_demo_write_data: '%s'\n",
rm_demo_write_data);
/* send given data to the client */
rc = os_mbuf_append(ctxt->om, &rm_demo_write_data,
strlen(rm_demo_write_data));
break;
case BLE_GATT_ACCESS_OP_WRITE_CHR:
puts("write to characteristic");
printf("old value of rm_demo_write_data: '%s'\n",
rm_demo_write_data);
uint16_t om_len;
om_len = OS_MBUF_PKTLEN(ctxt->om);
/* read sent data */
rc = ble_hs_mbuf_to_flat(ctxt->om, &rm_demo_write_data,
sizeof rm_demo_write_data, &om_len);
/* we need to null-terminate the received string */
rm_demo_write_data[om_len] = '\0';
printf("new value of rm_demo_write_data: '%s'\n",
rm_demo_write_data);
break;
case BLE_GATT_ACCESS_OP_READ_DSC:
puts("read from descriptor");
break;
case BLE_GATT_ACCESS_OP_WRITE_DSC:
puts("write to descriptor");
break;
default:
puts("unhandled operation!");
rc = 1;
break;
}
puts("");
return rc;
}
else if (ble_uuid_cmp(ctxt->chr->uuid, readonly_uuid) == 0) {
puts("access to characteristic 'rw demo (read-only)'");
if (ctxt->op == BLE_GATT_ACCESS_OP_READ_CHR) {
char random_digit;
/* get random char between '0' and '9' */
random_digit = 48 + (rand() % 10);
snprintf(str_answer, STR_ANSWER_BUFFER_SIZE,
"new random number: %c", random_digit);
puts(str_answer);
rc = os_mbuf_append(ctxt->om, &str_answer, strlen(str_answer));
puts("");
return rc;
}
return 0;
}
puts("unhandled uuid!");
return 1;
}
int main(void)
{
puts("NimBLE GATT Server Example");
int rc = 0;
(void)rc;
/* verify and add our custom services */
rc = ble_gatts_count_cfg(gatt_svr_svcs);
assert(rc == 0);
rc = ble_gatts_add_svcs(gatt_svr_svcs);
assert(rc == 0);
/* set the device name */
ble_svc_gap_device_name_set(CONFIG_NIMBLE_AUTOADV_DEVICE_NAME);
/* reload the GATT server to link our added services */
ble_gatts_start();
/* start to advertise this node */
nimble_autoadv_start(NULL);
return 0;
}
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