107 lines
3.1 KiB
Rust
107 lines
3.1 KiB
Rust
//! Simple example for changing settings on the Pixel Buds Pro via the Maestro service.
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//!
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//! Sets active nois ecancelling (ANC) state. 1: off, 2: active, 3: aware, 4.adaptive
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//!
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//! Usage:
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//! cargo run --example maestro_write_settings -- <bluetooth-device-address> <anc-state>
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mod common;
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use std::str::FromStr;
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use anyhow::bail;
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use bluer::{Address, Session};
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use maestro::protocol::utils;
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use num_enum::FromPrimitive;
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use maestro::protocol::codec::Codec;
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use maestro::pwrpc::client::{Client, ClientHandle};
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use maestro::service::MaestroService;
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use maestro::service::settings::{AncState, SettingValue};
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#[tokio::main(flavor = "current_thread")]
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async fn main() -> Result<(), anyhow::Error> {
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tracing_subscriber::fmt::init();
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// handle command line arguments
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let addr = std::env::args().nth(1).expect("need device address as argument");
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let addr = Address::from_str(&addr)?;
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let anc_state = std::env::args().nth(2).expect("need ANC state as argument");
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let anc_state = i32::from_str(&anc_state)?;
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let anc_state = AncState::from_primitive(anc_state);
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if let AncState::Unknown(x) = anc_state {
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bail!("invalid ANC state {x}");
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}
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// set up session
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let session = Session::new().await?;
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let adapter = session.default_adapter().await?;
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println!("Using adapter '{}'", adapter.name());
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// get device
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let dev = adapter.device(addr)?;
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let uuids = {
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let mut uuids = Vec::from_iter(dev.uuids().await?
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.unwrap_or_default()
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.into_iter());
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uuids.sort_unstable();
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uuids
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};
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println!("Found device:");
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println!(" alias: {}", dev.alias().await?);
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println!(" address: {}", dev.address());
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println!(" paired: {}", dev.is_paired().await?);
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println!(" connected: {}", dev.is_connected().await?);
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println!(" UUIDs:");
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for uuid in uuids {
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println!(" {}", uuid);
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}
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println!();
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println!("Connecting to Maestro profile");
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let stream = common::connect_maestro_rfcomm(&session, &dev).await?;
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println!("Profile connected");
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// set up stream for RPC communication
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let codec = Codec::new();
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let stream = codec.wrap(stream);
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// set up RPC client
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let mut client = Client::new(stream);
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let handle = client.handle();
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// retreive the channel numer
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let channel = utils::resolve_channel(&mut client).await?;
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let exec_task = common::run_client(client);
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let settings_task = read_settings(handle, channel, anc_state);
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tokio::select! {
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res = exec_task => {
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match res {
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Ok(_) => bail!("client terminated unexpectedly without error"),
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Err(e) => Err(e),
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}
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},
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res = settings_task => res,
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}
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}
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async fn read_settings(handle: ClientHandle, channel: u32, anc_state: AncState) -> anyhow::Result<()> {
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let mut service = MaestroService::new(handle.clone(), channel);
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println!();
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println!("Setting ANC status to '{}'", anc_state);
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service.write_setting(SettingValue::CurrentAncrState(anc_state)).await?;
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Ok(())
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}
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