From 175a9b3cd5a19177a16a291c2d631c8349a4cd67 Mon Sep 17 00:00:00 2001
From: Dominik Csapak <d.csapak@proxmox.com>
Date: Mon, 13 May 2024 12:49:23 +0200
Subject: [PATCH] tape: add functions to parse drive device activity

we use the VHF part from the DT Device Activity page for that.
This is intended to query the drive for it's current state and activity.

Currently only the activity is parsed and used.

Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
---
 pbs-api-types/src/tape/drive.rs | 65 +++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)

diff --git a/pbs-api-types/src/tape/drive.rs b/pbs-api-types/src/tape/drive.rs
index 626c5d9c..de569980 100644
--- a/pbs-api-types/src/tape/drive.rs
+++ b/pbs-api-types/src/tape/drive.rs
@@ -276,3 +276,68 @@ pub struct Lp17VolumeStatistics {
     /// Volume serial number
     pub serial: String,
 }
+
+/// The DT Device Activity from DT Device Status LP page
+#[api]
+#[derive(Copy, Clone, Serialize, Deserialize)]
+#[serde(rename_all = "kebab-case")]
+pub enum DeviceActivity {
+    /// No activity
+    NoActivity,
+    /// Cleaning
+    Cleaning,
+    /// Loading
+    Loading,
+    /// Unloading
+    Unloading,
+    /// Other unspecified activity
+    Other,
+    /// Reading
+    Reading,
+    /// Writing
+    Writing,
+    /// Locating
+    Locating,
+    /// Rewinding
+    Rewinding,
+    /// Erasing
+    Erasing,
+    /// Formatting
+    Formatting,
+    /// Calibrating
+    Calibrating,
+    /// Other (DT)
+    OtherDT,
+    /// Updating microcode
+    MicrocodeUpdate,
+    /// Reading encrypted data
+    ReadingEncrypted,
+    /// Writing encrypted data
+    WritingEncrypted,
+}
+
+impl TryFrom<u8> for DeviceActivity {
+    type Error = Error;
+
+    fn try_from(value: u8) -> Result<Self, Self::Error> {
+        Ok(match value {
+            0x00 => DeviceActivity::NoActivity,
+            0x01 => DeviceActivity::Cleaning,
+            0x02 => DeviceActivity::Loading,
+            0x03 => DeviceActivity::Unloading,
+            0x04 => DeviceActivity::Other,
+            0x05 => DeviceActivity::Reading,
+            0x06 => DeviceActivity::Writing,
+            0x07 => DeviceActivity::Locating,
+            0x08 => DeviceActivity::Rewinding,
+            0x09 => DeviceActivity::Erasing,
+            0x0A => DeviceActivity::Formatting,
+            0x0B => DeviceActivity::Calibrating,
+            0x0C => DeviceActivity::OtherDT,
+            0x0D => DeviceActivity::MicrocodeUpdate,
+            0x0E => DeviceActivity::ReadingEncrypted,
+            0x0F => DeviceActivity::WritingEncrypted,
+            other => bail!("invalid DT device activity value: {:x}", other),
+        })
+    }
+}