zephyr/samples/bluetooth/bthome_sensor_template/src/main.c
Keith Packard 1d5e644d12 samples, tests: Switch main return type from void to int
This applies the coccinelle script to another set of files:

   samples/bluetooth/bthome_sensor_template/src/main.c
   samples/boards/stm32/power_mgmt/standby_shutdown/src/main.c
   samples/drivers/smbus/src/main.c
   samples/drivers/virtualization/ivshmem/doorbell/src/ivshmem.c
   samples/fuel_gauge/max17048/src/main.c
   samples/hello_world/src/main.c
   samples/sensor/proximity_polling/src/main.c
   samples/subsys/logging/ble_backend/src/main.c
   tests/drivers/build_all/mfd/src/main.c

Signed-off-by: Keith Packard <keithp@keithp.com>
2023-04-14 07:49:41 +09:00

83 lines
2.0 KiB
C

/*
* Copyright (c) 2023 Nordic Semiconductor ASA
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/bluetooth/bluetooth.h>
#include <zephyr/bluetooth/uuid.h>
#define SERVICE_DATA_LEN 9
#define SERVICE_UUID 0xfcd2 /* BTHome service UUID */
#define IDX_TEMPL 4 /* Index of lo byte of temp in service data*/
#define IDX_TEMPH 5 /* Index of hi byte of temp in service data*/
#define ADV_PARAM BT_LE_ADV_PARAM(BT_LE_ADV_OPT_USE_IDENTITY, \
BT_GAP_ADV_SLOW_INT_MIN, \
BT_GAP_ADV_SLOW_INT_MAX, NULL)
static uint8_t service_data[SERVICE_DATA_LEN] = {
BT_UUID_16_ENCODE(SERVICE_UUID),
0x40,
0x02, /* Temperature */
0xc4, /* Low byte */
0x00, /* High byte */
0x03, /* Humidity */
0xbf, /* 50.55% low byte*/
0x13, /* 50.55% high byte*/
};
static struct bt_data ad[] = {
BT_DATA_BYTES(BT_DATA_FLAGS, BT_LE_AD_GENERAL | BT_LE_AD_NO_BREDR),
BT_DATA(BT_DATA_NAME_COMPLETE, CONFIG_BT_DEVICE_NAME, sizeof(CONFIG_BT_DEVICE_NAME) - 1),
BT_DATA(BT_DATA_SVC_DATA16, service_data, ARRAY_SIZE(service_data))
};
static void bt_ready(int err)
{
if (err) {
printk("Bluetooth init failed (err %d)\n", err);
return;
}
printk("Bluetooth initialized\n");
/* Start advertising */
err = bt_le_adv_start(ADV_PARAM, ad, ARRAY_SIZE(ad), NULL, 0);
if (err) {
printk("Advertising failed to start (err %d)\n", err);
return;
}
}
int main(void)
{
int err;
int temp = 0;
printk("Starting BTHome sensor template\n");
/* Initialize the Bluetooth Subsystem */
err = bt_enable(bt_ready);
if (err) {
printk("Bluetooth init failed (err %d)\n", err);
return 0;
}
for (;;) {
/* Simulate temperature from 0C to 25C */
service_data[IDX_TEMPH] = (temp * 100) >> 8;
service_data[IDX_TEMPL] = (temp * 100) & 0xff;
if (temp++ == 25) {
temp = 0;
}
err = bt_le_adv_update_data(ad, ARRAY_SIZE(ad), NULL, 0);
if (err) {
printk("Failed to update advertising data (err %d)\n", err);
}
k_sleep(K_MSEC(BT_GAP_ADV_SLOW_INT_MIN));
}
return 0;
}