feat: device commands

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

Cargo.lock

@@ -241,6 +241,8 @@ dependencies = [
  "log",
  "log4rs",
  "rusb",
+ "serde",
+ "serde_json",
 ]
 
 [[package]]

Cargo.toml

@@ -19,3 +19,5 @@ libptp = "0.6.5"
 log = "0.4.28"
 log4rs = "1.4.0"
 rusb = "0.9.4"
+serde = { version = "1.0.228", features = ["derive"] }
+serde_json = "1.0.145"

src/cli/device.rs

@@ -1,12 +0,0 @@
-use clap::Subcommand;
-
-#[derive(Subcommand, Debug)]
-pub enum DeviceCmd {
-    /// List devices
-    #[command(alias = "l")]
-    List,
-
-    /// Dump device info
-    #[command(alias = "i")]
-    Info,
-}

src/cli/device/mod.rs

@@ -0,0 +1,139 @@
+use std::{error::Error, fmt};
+
+use clap::Subcommand;
+use serde::Serialize;
+
+use crate::usb;
+
+#[derive(Subcommand, Debug)]
+pub enum DeviceCmd {
+    /// List devices
+    #[command(alias = "l")]
+    List,
+
+    /// Dump device info
+    #[command(alias = "i")]
+    Info,
+}
+
+#[derive(Serialize)]
+pub struct DeviceItemRepr {
+    pub name: String,
+    pub id: String,
+    pub vendor_id: String,
+    pub product_id: String,
+}
+
+impl From<&usb::Device> for DeviceItemRepr {
+    fn from(device: &usb::Device) -> Self {
+        DeviceItemRepr {
+            id: device.id(),
+            name: device.name(),
+            vendor_id: format!("0x{:04x}", device.vendor_id()),
+            product_id: format!("0x{:04x}", device.product_id()),
+        }
+    }
+}
+
+impl fmt::Display for DeviceItemRepr {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(
+            f,
+            "{} ({}:{}) (ID: {})",
+            self.name, self.vendor_id, self.product_id, self.id
+        )
+    }
+}
+
+pub fn handle_list(json: bool) -> Result<(), Box<dyn Error + Send + Sync>> {
+    let devices: Vec<DeviceItemRepr> = usb::get_connected_devices()?
+        .iter()
+        .map(|d| d.into())
+        .collect();
+
+    if json {
+        println!("{}", serde_json::to_string_pretty(&devices)?);
+        return Ok(());
+    }
+
+    if devices.is_empty() {
+        println!("No supported devices connected.");
+        return Ok(());
+    }
+
+    println!("Connected devices:");
+    for d in devices {
+        println!("- {}", d);
+    }
+
+    Ok(())
+}
+
+#[derive(Serialize)]
+pub struct DeviceRepr {
+    #[serde(flatten)]
+    pub device: DeviceItemRepr,
+
+    pub manufacturer: String,
+    pub model: String,
+    pub device_version: String,
+    pub serial_number: String,
+}
+
+impl DeviceRepr {
+    pub fn from_info(device: &usb::Device, info: &libptp::DeviceInfo) -> Self {
+        DeviceRepr {
+            device: device.into(),
+            manufacturer: info.Manufacturer.clone(),
+            model: info.Model.clone(),
+            device_version: info.DeviceVersion.clone(),
+            serial_number: info.SerialNumber.clone(),
+        }
+    }
+}
+
+impl fmt::Display for DeviceRepr {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        writeln!(f, "Name: {}", self.device.name)?;
+        writeln!(f, "ID: {}", self.device.id)?;
+        writeln!(
+            f,
+            "Vendor ID: {}, Product ID: {}",
+            self.device.vendor_id, self.device.product_id
+        )?;
+        writeln!(f, "Manufacturer: {}", self.manufacturer)?;
+        writeln!(f, "Model: {}", self.model)?;
+        writeln!(f, "Device Version: {}", self.device_version)?;
+        write!(f, "Serial Number: {}", self.serial_number)
+    }
+}
+
+pub fn handle_info(
+    json: bool,
+    device_id: Option<&str>,
+) -> Result<(), Box<dyn Error + Send + Sync>> {
+    let device = usb::get_device(device_id)?;
+
+    let mut camera = device.camera()?;
+    let info = device.model.get_device_info(&mut camera)?;
+    let repr = DeviceRepr::from_info(&device, &info);
+
+    if json {
+        println!("{}", serde_json::to_string_pretty(&repr)?);
+        return Ok(());
+    }
+
+    println!("{}", repr);
+    Ok(())
+}
+
+pub fn handle(
+    cmd: DeviceCmd,
+    json: bool,
+    device_id: Option<&str>,
+) -> Result<(), Box<dyn Error + Send + Sync>> {
+    match cmd {
+        DeviceCmd::List => handle_list(json),
+        DeviceCmd::Info => handle_info(json, device_id),
+    }
+}

src/cli/mod.rs

@@ -1,8 +1,9 @@
-mod backup;
 mod common;
-mod device;
-mod render;
-mod simulation;
+
+pub mod backup;
+pub mod device;
+pub mod render;
+pub mod simulation;
 
 use clap::{Parser, Subcommand};
 

src/hardware/common.rs

@@ -0,0 +1,3 @@
+use std::time::Duration;
+
+pub const TIMEOUT: Duration = Duration::from_millis(500);

src/hardware/mod.rs

@@ -0,0 +1,36 @@
+use std::error::Error;
+
+use libptp::{DeviceInfo, StandardCommandCode};
+use log::debug;
+use rusb::GlobalContext;
+
+mod common;
+mod xt5;
+
+pub trait Camera {
+    fn vendor_id(&self) -> u16;
+    fn product_id(&self) -> u16;
+    fn name(&self) -> &'static str;
+
+    fn get_device_info(
+        &self,
+        camera: &mut libptp::Camera<GlobalContext>,
+    ) -> Result<DeviceInfo, Box<dyn Error + Send + Sync>> {
+        debug!("Using default GetDeviceInfo command for {}", self.name());
+
+        let response = camera.command(
+            StandardCommandCode::GetDeviceInfo,
+            &[],
+            None,
+            Some(common::TIMEOUT),
+        )?;
+
+        debug!("Received response with {} bytes", response.len());
+
+        let device_info = DeviceInfo::decode(&response)?;
+
+        Ok(device_info)
+    }
+}
+
+pub const SUPPORTED_MODELS: &[&dyn Camera] = &[&xt5::FujifilmXT5];

src/hardware/xt5.rs

@@ -0,0 +1,18 @@
+use super::Camera;
+
+#[derive(Debug)]
+pub struct FujifilmXT5;
+
+impl Camera for FujifilmXT5 {
+    fn vendor_id(&self) -> u16 {
+        0x04cb
+    }
+
+    fn product_id(&self) -> u16 {
+        0x02fc
+    }
+
+    fn name(&self) -> &'static str {
+        "FUJIFILM X-T5"
+    }
+}

src/log.rs

@@ -1,3 +1,5 @@
+use std::error::Error;
+
 use log::LevelFilter;
 use log4rs::{
     Config,
@@ -6,7 +8,7 @@ use log4rs::{
     encode::pattern::PatternEncoder,
 };
 
-pub fn init(quiet: bool, verbose: bool) -> Result<(), Box<dyn std::error::Error>> {
+pub fn init(quiet: bool, verbose: bool) -> Result<(), Box<dyn Error + Send + Sync>> {
     let level = if quiet {
         LevelFilter::Warn
     } else if verbose {

src/main.rs

@@ -1,14 +1,23 @@
-use clap::Parser;
-mod cli;
-mod log;
+use std::error::Error;
 
-fn main() -> Result<(), Box<dyn std::error::Error>> {
+use clap::Parser;
+use cli::Commands;
+
+mod cli;
+mod hardware;
+mod log;
+mod usb;
+
+fn main() -> Result<(), Box<dyn Error + Send + Sync>> {
     let cli = cli::Cli::parse();
 
     log::init(cli.quiet, cli.verbose)?;
 
     match cli.command {
-        _ => {}
+        Commands::Device(device_cmd) => {
+            cli::device::handle(device_cmd, cli.json, cli.device.as_deref())?
+        }
+        _ => todo!(),
     }
 
     Ok(())

src/usb/mod.rs

@@ -0,0 +1,108 @@
+use std::error::Error;
+
+use rusb::GlobalContext;
+
+use crate::hardware::SUPPORTED_MODELS;
+
+#[derive(Clone)]
+pub struct Device {
+    pub model: &'static dyn crate::hardware::Camera,
+    pub rusb_device: rusb::Device<GlobalContext>,
+}
+
+impl Device {
+    pub fn camera(&self) -> Result<libptp::Camera<GlobalContext>, Box<dyn Error + Send + Sync>> {
+        let handle = self.rusb_device.open()?;
+        let device = handle.device();
+        let camera = libptp::Camera::new(&device)?;
+        Ok(camera)
+    }
+
+    pub fn id(&self) -> String {
+        let bus = self.rusb_device.bus_number();
+        let address = self.rusb_device.address();
+        format!("{}.{}", bus, address)
+    }
+
+    pub fn name(&self) -> String {
+        self.model.name().to_string()
+    }
+
+    pub fn vendor_id(&self) -> u16 {
+        let descriptor = self.rusb_device.device_descriptor().unwrap();
+        descriptor.vendor_id()
+    }
+
+    pub fn product_id(&self) -> u16 {
+        let descriptor = self.rusb_device.device_descriptor().unwrap();
+        descriptor.product_id()
+    }
+}
+
+pub fn get_connected_devices() -> Result<Vec<Device>, Box<dyn Error + Send + Sync>> {
+    let mut connected_devices = Vec::new();
+
+    for device in rusb::devices()?.iter() {
+        let descriptor = match device.device_descriptor() {
+            Ok(d) => d,
+            Err(_) => continue,
+        };
+
+        for model in SUPPORTED_MODELS.iter() {
+            if descriptor.vendor_id() == model.vendor_id()
+                && descriptor.product_id() == model.product_id()
+            {
+                let connected_device = Device {
+                    model: *model,
+                    rusb_device: device,
+                };
+
+                connected_devices.push(connected_device);
+                break;
+            }
+        }
+    }
+
+    Ok(connected_devices)
+}
+
+pub fn get_connected_device_by_id(id: &str) -> Result<Device, Box<dyn Error + Send + Sync>> {
+    let parts: Vec<&str> = id.split('.').collect();
+    if parts.len() != 2 {
+        return Err(format!("Invalid device id format: {}", id).into());
+    }
+
+    let bus: u8 = parts[0].parse()?;
+    let address: u8 = parts[1].parse()?;
+
+    for device in rusb::devices()?.iter() {
+        if device.bus_number() == bus && device.address() == address {
+            let descriptor = device.device_descriptor()?;
+
+            for model in SUPPORTED_MODELS.iter() {
+                if descriptor.vendor_id() == model.vendor_id()
+                    && descriptor.product_id() == model.product_id()
+                {
+                    return Ok(Device {
+                        model: *model,
+                        rusb_device: device,
+                    });
+                }
+            }
+
+            return Err(format!("Device found at {} but is not supported", id).into());
+        }
+    }
+
+    Err(format!("No device found with id: {}", id).into())
+}
+
+pub fn get_device(device_id: Option<&str>) -> Result<Device, Box<dyn Error + Send + Sync>> {
+    match device_id {
+        Some(id) => get_connected_device_by_id(id),
+        None => get_connected_devices()?
+            .into_iter()
+            .next()
+            .ok_or_else(|| "No supported devices connected.".into()),
+    }
+}