LE-Audio Software Offload: Patch ISO Data Path during phase 1

Bug: 375486605
Flag: EXEMPT, enabled by vendor
Test: atest libbluetooth_offload_leaudio_hci_test
Change-Id: If589d087fe98996e50b16d5f565a046951a2969a

2 files changed, 15 insertions, 5 deletions

diff --git a/offload/hci/command.rs b/offload/hci/command.rs
index a4bbe6f701..9aa7447137 100644
--- a/offload/hci/command.rs
+++ b/offload/hci/command.rs
@@ -450,7 +450,7 @@ impl CommandOpCode for LeSetupIsoDataPath {
     const OPCODE: OpCode = OpCode::from(0x08, 0x06e);
 }
 
-#[derive(Debug, Read, Write, CommandToBytes)]
+#[derive(Clone, Debug, Read, Write, CommandToBytes)]
 pub struct LeSetupIsoDataPath {
     pub connection_handle: u16,
     pub data_path_direction: LeDataPathDirection,
@@ -460,20 +460,20 @@ pub struct LeSetupIsoDataPath {
     pub codec_configuration: Vec<u8>,
 }
 
-#[derive(Debug, PartialEq, Read, Write)]
+#[derive(Clone, Debug, PartialEq, Read, Write)]
 pub enum LeDataPathDirection {
     Input = 0x00,
     Output = 0x01,
 }
 
-#[derive(Debug, Read, Write)]
+#[derive(Clone, Debug, Read, Write)]
 pub struct LeCodecId {
     pub coding_format: CodingFormat,
     pub company_id: u16,
     pub vendor_id: u16,
 }
 
-#[derive(Debug, PartialEq, Read, Write)]
+#[derive(Clone, Debug, PartialEq, Read, Write)]
 pub enum CodingFormat {
     ULawLog = 0x00,
     ALawLog = 0x01,
diff --git a/offload/leaudio/hci/proxy.rs b/offload/leaudio/hci/proxy.rs
index 986da0b88e..933389d315 100644
--- a/offload/leaudio/hci/proxy.rs
+++ b/offload/leaudio/hci/proxy.rs
@@ -16,7 +16,10 @@ use bluetooth_offload_hci as hci;
 
 use crate::arbiter::Arbiter;
 use crate::service::{Service, StreamConfiguration};
-use hci::{Command, Event, EventToBytes, IsoData, Module, ModuleBuilder, ReturnParameters, Status};
+use hci::{
+    Command, CommandToBytes, Event, EventToBytes, IsoData, Module, ModuleBuilder, ReturnParameters,
+    Status,
+};
 use std::collections::HashMap;
 use std::sync::{Arc, Mutex};
 
@@ -197,6 +200,13 @@ impl Module for LeAudioModule {
                 let mut state = self.state.lock().unwrap();
                 let stream = state.stream.get_mut(&c.connection_handle).unwrap();
                 stream.state = StreamState::Enabling;
+
+                // Phase 1 limitation: The controller does not implement HCI Link Feedback event,
+                // and not implement the `DATA_PATH_ID_SOTWARE` to enable it.
+                // Fix the data_path_id to 0 (HCI) waiting for controller implementation.
+                self.next()
+                    .out_cmd(&hci::LeSetupIsoDataPath { data_path_id: 0, ..c.clone() }.to_bytes());
+                return;
             }
 
             _ => (),