116 lines
3.0 KiB
Rust
116 lines
3.0 KiB
Rust
//! Footswitch-RS
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//!
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//! `footswitch-rs` enables you to use footswitches of <xxx>
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mod key_operations;
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#[macro_use]
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extern crate structopt;
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extern crate hidapi;
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extern crate users;
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use std::path::PathBuf;
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use std::process;
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use structopt::StructOpt;
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#[derive(StructOpt, Debug)]
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#[structopt(name = "rust-footswitch")]
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struct Opt {
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/// Read all pedals
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#[structopt(short = "r", long = "read")]
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read: bool,
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/// Prints a table of all keys with <listkeys> rows
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#[structopt(short = "l", long = "listkeys")]
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listkeys: Option<usize>,
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/// Select pedal (left: 1, middle: 2, right: 3)
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#[structopt(short = "p", long = "pedal", parse(from_os_str))]
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output: Option<PathBuf>,
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}
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fn main() {
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check_sudo();
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let opt = Opt::from_args();
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// All options that don't need the device to be open
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// Print all keys and exit application
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if let Some(x) = opt.listkeys {
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key_operations::print_key_map(x);
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process::exit(0);
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}
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// Open device
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let vld_dev = [
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(0x0c45u16, 0x7403u16),
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(0x0c45 , 0x7404),
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(0x413d , 0x2107)
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];
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let api = hidapi::HidApi::new().expect("Hidapi init failed!");
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let mut dev_path = String::new();
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for device in &api.devices() {
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//println!("{}:{}, {}, {}", device.vendor_id, device.product_id, device.interface_number, device.path);
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for val in vld_dev.iter() {
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if *val == (device.vendor_id, device.product_id) && device.interface_number == 1 {
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println!("Found device {:x}:{:x} ({})", device.vendor_id, device.product_id, device.path);
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dev_path = device.path.clone();
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}
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}
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}
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let dev = api.open_path(dev_path.as_str()).unwrap();
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println!("Succesfully opened device.");
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// All options that need the device to be open
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if opt.read {
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read_pedals(& dev);
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}
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}
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/// Checks if user is super user
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fn check_sudo() {
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if users::get_current_uid() != 0 {
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panic!("Please execute this application as super user!");
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}
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}
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/// Read the current values of the pedals
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fn read_pedals(dev: & hidapi::HidDevice) {
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let column_width = 15;
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let total_width = (column_width+3)*3;
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let mut buf = [0u8; 8];
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let mut query = [0x01u8, 0x82, 0x08, 0x01, 0x00, 0x00, 0x00, 0x00];
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// Print header
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println!(" {}", "-".repeat(total_width));
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println!(" ‖{name:^width$}‖", name = "Programmed Keys", width = total_width - 2);
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println!(" {}", "-".repeat(total_width));
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// Read and print keys
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for i in 0..3 {
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query[3] = i + 1;
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dev.write(&query).unwrap();
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let res = dev.read(&mut buf[..]).unwrap();
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let key_name = match key_operations::print_key(&buf[..res]) {
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Some(key) => key,
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None => "< None >".to_string(),
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};
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print!(" ‖ {name:^-width$}", name = key_name, width = column_width);
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}
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// Print simple footer
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println!("‖\n {}", "-".repeat(total_width));
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}
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