| /* main.c - Application main entry point */ |
| |
| /* |
| * Copyright (c) 2019 Aaron Tsui <aaron.tsui@outlook.com> |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/types.h> |
| #include <stddef.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <sys/printk.h> |
| #include <sys/byteorder.h> |
| #include <zephyr.h> |
| |
| #include <bluetooth/bluetooth.h> |
| #include <bluetooth/hci.h> |
| #include <bluetooth/conn.h> |
| #include <bluetooth/uuid.h> |
| #include <bluetooth/gatt.h> |
| #include <bluetooth/services/bas.h> |
| |
| #include "hts.h" |
| |
| struct bt_conn *default_conn; |
| |
| static const struct bt_data ad[] = { |
| BT_DATA_BYTES(BT_DATA_FLAGS, (BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR)), |
| BT_DATA_BYTES(BT_DATA_UUID16_ALL, |
| 0x09, 0x18, /* Health Thermometer Service */ |
| 0x0a, 0x18, /* Device Information Service */ |
| 0x0f, 0x18), /* Battery Service */ |
| }; |
| |
| static void connected(struct bt_conn *conn, u8_t err) |
| { |
| if (err) { |
| printk("Connection failed (err 0x%02x)\n", err); |
| } else { |
| default_conn = bt_conn_ref(conn); |
| printk("Connected\n"); |
| } |
| } |
| |
| static void disconnected(struct bt_conn *conn, u8_t reason) |
| { |
| printk("Disconnected (reason 0x%02x)\n", reason); |
| |
| if (default_conn) { |
| bt_conn_unref(default_conn); |
| default_conn = NULL; |
| } |
| } |
| |
| static struct bt_conn_cb conn_callbacks = { |
| .connected = connected, |
| .disconnected = disconnected, |
| }; |
| |
| static void bt_ready(void) |
| { |
| int err; |
| |
| printk("Bluetooth initialized\n"); |
| |
| hts_init(); |
| |
| err = bt_le_adv_start(BT_LE_ADV_CONN_NAME, ad, ARRAY_SIZE(ad), NULL, 0); |
| if (err) { |
| printk("Advertising failed to start (err %d)\n", err); |
| return; |
| } |
| |
| printk("Advertising successfully started\n"); |
| } |
| |
| static void auth_cancel(struct bt_conn *conn) |
| { |
| char addr[BT_ADDR_LE_STR_LEN]; |
| |
| bt_addr_le_to_str(bt_conn_get_dst(conn), addr, sizeof(addr)); |
| |
| printk("Pairing cancelled: %s\n", addr); |
| } |
| |
| static struct bt_conn_auth_cb auth_cb_display = { |
| .cancel = auth_cancel, |
| }; |
| |
| static void bas_notify(void) |
| { |
| u8_t battery_level = bt_gatt_bas_get_battery_level(); |
| |
| battery_level--; |
| |
| if (!battery_level) { |
| battery_level = 100U; |
| } |
| |
| bt_gatt_bas_set_battery_level(battery_level); |
| } |
| |
| void main(void) |
| { |
| int err; |
| |
| err = bt_enable(NULL); |
| if (err) { |
| printk("Bluetooth init failed (err %d)\n", err); |
| return; |
| } |
| |
| bt_ready(); |
| |
| bt_conn_cb_register(&conn_callbacks); |
| bt_conn_auth_cb_register(&auth_cb_display); |
| |
| /* Implement indicate. At the moment there is no suitable way |
| * of starting delayed work so we do it here |
| */ |
| while (1) { |
| k_sleep(K_SECONDS(1)); |
| |
| /* Temperature measurements simulation */ |
| hts_indicate(); |
| |
| /* Battery level simulation */ |
| bas_notify(); |
| } |
| } |