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hwd: decode some ACPI IDs

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This commit is contained in:
Jeremy Soller
2025-09-27 18:22:05 -06:00
parent 0b3d81e06b
commit 6b335d4f90
1 changed files with 29 additions and 4 deletions
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hwd/src/main.rs
+29 -4
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@@ -16,7 +16,15 @@ fn acpi() -> Result<(), Box<dyn Error>> {
let vendor_1 = (((vendor_rev >> 10) & 0x1f) as u8 + 64) as char;
let vendor_2 = (((vendor_rev >> 5) & 0x1f) as u8 + 64) as char;
let vendor_3 = (((vendor_rev >> 0) & 0x1f) as u8 + 64) as char;
format!("{}{}{}{:04X}", vendor_1, vendor_2, vendor_3, device)
//TODO: simplify this nibble swap
let device_1 = (device >> 4) & 0xF;
let device_2 = (device >> 0) & 0xF;
let device_3 = (device >> 12) & 0xF;
let device_4 = (device >> 8) & 0xF;
format!(
"{}{}{}{:01X}{:01X}{:01X}{:01X}",
vendor_1, vendor_2, vendor_3, device_1, device_2, device_3, device_4
)
}
AmlSerdeValue::String(string) => string,
_ => {
@@ -24,7 +32,24 @@ fn acpi() -> Result<(), Box<dyn Error>> {
continue;
}
};
log::debug!("{}: {}", name, id);
let what = match id.as_str() {
// https://uefi.org/specs/ACPI/6.5/05_ACPI_Software_Programming_Model.html
"ACPI0006" => "GPE block device",
"ACPI0010" => "Processor control device",
// https://uefi.org/sites/default/files/resources/devids%20%285%29.txt
"PNP0103" => "HPET",
"PNP0303" => "IBM Enhanced (101/102-key, PS/2 mouse support)",
"PNP0400" => "Standard LPT printer port",
"PNP0501" => "16550A-compatible COM port",
"PNP0A03" => "PCI bus",
"PNP0A05" => "Generic ACPI bus",
"PNP0A06" => "Generic ACPI Extended-IO bus (EIO bus)",
"PNP0B00" => "AT real-time clock",
"PNP0C0F" => "PCI interrupt link device",
"PNP0F13" => "PS/2 port for PS/2-style mouse",
_ => "?",
};
log::debug!("{}: {} ({})", name, id, what);
}
}
}
@@ -36,8 +61,8 @@ fn main() {
"misc",
"hwd",
"hwd",
log::LevelFilter::Info,
log::LevelFilter::Info,
log::LevelFilter::Debug,
log::LevelFilter::Debug,
);
//TODO: HWD is meant to locate PCI/XHCI/etc devices in ACPI and DeviceTree definitions and start their drivers