Add runtime tools and Red Bear service wiring

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
2026-04-14 10:50:42 +01:00
parent fd60edc823
commit 51f3c21121
62 changed files with 9613 additions and 881 deletions
@@ -0,0 +1,94 @@
+use std::fs;
+use std::process;
+
+use redbear_hwutils::{parse_args, parse_pci_location, PciLocation};
+
+const USAGE: &str = "Usage: lspci\nList PCI devices exposed by /scheme/pci.";
+
+#[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd)]
+struct PciDeviceSummary {
+    location: PciLocation,
+    vendor_id: u16,
+    device_id: u16,
+    class_code: u8,
+    subclass: u8,
+    prog_if: u8,
+    revision: u8,
+}
+
+fn main() {
+    match run() {
+        Ok(()) => {}
+        Err(err) if err.is_empty() => {}
+        Err(err) => {
+            eprintln!("lspci: {err}");
+            process::exit(1);
+        }
+    }
+}
+
+fn run() -> Result<(), String> {
+    parse_args("lspci", USAGE, std::env::args())?;
+
+    let mut devices = collect_devices()?;
+    devices.sort();
+
+    for device in devices {
+        println!(
+            "{} class {:02x}:{:02x}.{:02x} vendor {:04x} device {:04x} rev {:02x}",
+            device.location,
+            device.class_code,
+            device.subclass,
+            device.prog_if,
+            device.vendor_id,
+            device.device_id,
+            device.revision,
+        );
+    }
+
+    Ok(())
+}
+
+fn collect_devices() -> Result<Vec<PciDeviceSummary>, String> {
+    let entries =
+        fs::read_dir("/scheme/pci").map_err(|err| format!("failed to read /scheme/pci: {err}"))?;
+
+    let mut devices = Vec::new();
+
+    for entry in entries {
+        let entry = match entry {
+            Ok(entry) => entry,
+            Err(_) => continue,
+        };
+
+        let file_name = entry.file_name();
+        let Some(file_name) = file_name.to_str() else {
+            continue;
+        };
+        let Some(location) = parse_pci_location(file_name) else {
+            continue;
+        };
+
+        let config_path = format!("{}/config", location.scheme_path());
+        let config = match fs::read(&config_path) {
+            Ok(config) => config,
+            Err(_) => continue,
+        };
+
+        if config.len() < 16 {
+            continue;
+        }
+
+        devices.push(PciDeviceSummary {
+            location,
+            vendor_id: u16::from_le_bytes([config[0x00], config[0x01]]),
+            device_id: u16::from_le_bytes([config[0x02], config[0x03]]),
+            revision: config[0x08],
+            prog_if: config[0x09],
+            subclass: config[0x0A],
+            class_code: config[0x0B],
+        });
+    }
+
+    Ok(devices)
+}