pci: Add serial bus subclass
Add serial bus subclass
BUG=chromium:831850
TEST=cargo test
Change-Id: Iffd7a27b5cb423c928f0108b16fb58558cf7bcd4
Reviewed-on: https://chromium-review.googlesource.com/1152212
Commit-Ready: Jingkui Wang <jkwang@google.com>
Tested-by: Jingkui Wang <jkwang@google.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
diff --git a/devices/src/pci/pci_configuration.rs b/devices/src/pci/pci_configuration.rs
index 4b4c427..cf23e60 100644
--- a/devices/src/pci/pci_configuration.rs
+++ b/devices/src/pci/pci_configuration.rs
@@ -100,6 +100,22 @@
}
}
+/// Subclass of the SerialBus
+#[allow(dead_code)]
+#[derive(Copy, Clone)]
+pub enum PciSerialBusSubClass {
+ Firewire = 0x00,
+ ACCESSbus = 0x01,
+ SSA = 0x02,
+ USB = 0x03,
+}
+
+impl PciSubclass for PciSerialBusSubClass {
+ fn get_register_value(&self) -> u8 {
+ *self as u8
+ }
+}
+
/// Contains the configuration space of a PCI node.
/// See the [specification](https://en.wikipedia.org/wiki/PCI_configuration_space).
/// The configuration space is accessed with DWORD reads and writes from the guest.