alert-me/display/src/ble/softdevice.rs

59 lines
1.9 KiB
Rust

use core::mem;
use crate::ble::gatt::Server;
use defmt::{info, unwrap};
use embassy_executor::Spawner;
use nrf_softdevice::{raw, Softdevice};
#[embassy_executor::task]
async fn softdevice_task(sd: &'static Softdevice) -> ! {
sd.run().await
}
fn configure(device_name: &str) -> nrf_softdevice::Config {
nrf_softdevice::Config {
clock: Some(raw::nrf_clock_lf_cfg_t {
source: raw::NRF_CLOCK_LF_SRC_RC as u8,
rc_ctiv: 16,
rc_temp_ctiv: 2,
accuracy: raw::NRF_CLOCK_LF_ACCURACY_500_PPM as u8,
}),
conn_gap: Some(raw::ble_gap_conn_cfg_t {
conn_count: 6,
event_length: 24,
}),
conn_gatt: Some(raw::ble_gatt_conn_cfg_t { att_mtu: 256 }),
gatts_attr_tab_size: Some(raw::ble_gatts_cfg_attr_tab_size_t {
attr_tab_size: raw::BLE_GATTS_ATTR_TAB_SIZE_DEFAULT,
}),
gap_role_count: Some(raw::ble_gap_cfg_role_count_t {
adv_set_count: 1,
periph_role_count: 3,
central_role_count: 3,
central_sec_count: 0,
_bitfield_1: raw::ble_gap_cfg_role_count_t::new_bitfield_1(0),
}),
gap_device_name: Some(raw::ble_gap_cfg_device_name_t {
p_value: device_name.as_bytes().as_ptr() as *const u8 as _,
current_len: 9,
max_len: 9,
write_perm: unsafe { mem::zeroed() },
_bitfield_1: raw::ble_gap_cfg_device_name_t::new_bitfield_1(
raw::BLE_GATTS_VLOC_STACK as u8,
),
}),
..Default::default()
}
}
pub fn run<'a>(spawner: Spawner, device_name: &str) -> (&'a Softdevice, Server) {
let config = configure(device_name);
let sd = Softdevice::enable(&config);
let server = unwrap!(Server::new(sd));
unwrap!(spawner.spawn(softdevice_task(sd)));
info!("softdevice started");
(sd, server)
}