Add LL1 Serving Cell Timing messages

This log should provide constant feedback about the serving cell's LTE
timing advance value.

lib/src/diag/diaglog/ll1.rs

@@ -0,0 +1,33 @@
+use deku::prelude::*;
+
+#[derive(Debug, Clone, PartialEq, DekuRead, DekuWrite)]
+#[deku(bit_order = "lsb", ctx = "_: deku::ctx::Order")]
+pub struct ServingCellTiming {
+    #[deku(assert_eq = "1")]
+    pub version: u8,
+    #[deku(bits = 5, assert = "*num_records <= 20")]
+    pub num_records: u8,
+    #[deku(bits = 4, assert = "*starting_sub_fn <= 9")]
+    pub starting_sub_fn: u8,
+    #[deku(bits = 10, pad_bits_after = "5", assert = "*starting_system_fn <= 1023")]
+    pub starting_system_fn: u16,
+    #[deku(bits = 19, pad_bits_after = "13", assert = "*starting_dl_frame_timing_offs <= 307200")]
+    pub starting_dl_frame_timing_offs: u32, // in Ts units
+    #[deku(bits = 19, assert = "*starting_ul_frame_timing_offs <= 307200")]
+    pub starting_ul_frame_timing_offs: u32, // in Ts units
+    #[deku(bits = 11, pad_bits_after = "2")]
+    pub starting_ul_timing_advance: u16, // in 16 Ts units
+    #[deku(count = "*num_records")]
+    pub timing_adjustment: Vec<TimingAdjustment>,
+}
+
+#[derive(Debug, Clone, PartialEq, DekuRead, DekuWrite)]
+#[deku(bit_order = "lsb", ctx = "_: deku::ctx::Order")]
+pub struct TimingAdjustment {
+    #[deku(bits = 11, assert = "(-512..=511).contains(dl_frame_timing_adjustment)")]
+    pub dl_frame_timing_adjustment: i16, // in Ts units
+    #[deku(bits = 5, assert = "(-16..=15).contains(ul_frame_timing_adjustment)")]
+    pub ul_frame_timing_adjustment: i8, // in Ts units
+    #[deku(bits = 8, assert = "(-128..=127).contains(timing_advance)")]
+    pub timing_advance: i8, // in 16 Ts units
+}

lib/src/diag/diaglog/mac.rs

@@ -18,7 +18,8 @@ pub struct Subpacket {
     pub id: u8,
     pub version: u8,
     pub size: u16,
-    #[deku(ctx = "*id, *version, *size")]
+    // size includes the header length, so subtract that
+    #[deku(ctx = "*id, *version, *size - 4")]
     pub body: SubpacketBody,
 }
 

lib/src/diag/diaglog/mod.rs

@@ -3,8 +3,9 @@
 use chrono::{DateTime, FixedOffset};
 use deku::prelude::*;
 
+pub mod ll1;
 pub mod mac;
-pub mod measurement;
+pub mod ml1;
 pub mod rrc;
 
 #[derive(Debug, Clone, PartialEq, DekuRead, DekuWrite)]
@@ -79,14 +80,23 @@ pub enum LogBody {
     },
     #[deku(id = "0xb17f")]
     LteMl1ServingCellMeasurementAndEvaluation {
-        data: measurement::serving_cell::MeasurementAndEvaluation,
+        data: ml1::serving_cell::MeasurementAndEvaluation,
     },
     #[deku(id = "0xb180")]
     LteMl1NeighborCellsMeasurements {
-        data: measurement::neighbor_cells::Measurements,
+        data: ml1::neighbor_cells::Measurements,
     },
     #[deku(id = "0xb062")]
     LteMacRachResponse { packet: mac::Packet },
+    #[deku(id = "0xb063")]
+    LteMacDl { packet: mac::Packet },
+    #[deku(id = "0xb064")]
+    LteMacUl { packet: mac::Packet },
+    #[deku(id = "0xb114")]
+    LteLl1ServingCellTiming {
+        #[deku(ctx = "deku::ctx::Order::Lsb0")]
+        data: ll1::ServingCellTiming,
+    }
 }
 
 #[derive(Debug, Clone, PartialEq, DekuRead, DekuWrite)]

lib/src/diag/mod.rs

@@ -166,8 +166,9 @@ impl Message {
         match body {
             LogBody::LteRrcOtaMessage { .. } => true,
             LogBody::LteMacRachResponse { .. } => true,
+            LogBody::LteMl1NeighborCellsMeasurements { .. } => true,
             LogBody::Nas4GMessage { .. } => true,
-            _ => false,
+            _ => false
         }
     }
 }