[BattOr] Make BattOr able to return firmware version.

tools/battor_agent/battor_agent.cc

Index: tools/battor_agent/battor_agent.cc
diff --git a/tools/battor_agent/battor_agent.cc b/tools/battor_agent/battor_agent.cc
index 6fc6ea17983b09ed662e617b9906fc6c3dbc2f94..089004cda0317b29eabf270bd80597fc263af1e4 100644
--- a/tools/battor_agent/battor_agent.cc
+++ b/tools/battor_agent/battor_agent.cc
@@ -1,7 +1,7 @@
 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
-
+#include <iostream>
 #include "tools/battor_agent/battor_agent.h"
 
 #include <iomanip>
@@ -159,6 +159,14 @@ void BattOrAgent::RecordClockSyncMarker(const std::string& marker) {
   PerformAction(Action::REQUEST_CONNECTION);
 }
 
+void BattOrAgent::GetVersion() {
+  std::cout << "START GetVersion()\n";
+  DCHECK(thread_checker_.CalledOnValidThread());
+
+  command_ = Command::GET_VERSION;
+  PerformAction(Action::REQUEST_CONNECTION);
+}
+
 void BattOrAgent::BeginConnect() {
   DCHECK(thread_checker_.CalledOnValidThread());
 
@@ -187,6 +195,10 @@ void BattOrAgent::OnConnectionOpened(bool success) {
     case Command::RECORD_CLOCK_SYNC_MARKER:
       PerformAction(Action::SEND_CURRENT_SAMPLE_REQUEST);
       return;
+    case Command::GET_VERSION:
+      std::cout << "OnConnectionOpened.GET_VERSION\n";
+      PerformAction(Action::SEND_GIT_HASH_REQUEST);
+      return;
     case Command::INVALID:
       NOTREACHED();
   }
@@ -228,6 +240,10 @@ void BattOrAgent::OnBytesSent(bool success) {
       num_read_attempts_ = 1;
       PerformAction(Action::READ_CURRENT_SAMPLE);
       return;
+    case Action::SEND_GIT_HASH_REQUEST:
+      std::cout << "OnBytesSent SEND_GIT_HASH_REQUEST\n";
+      num_read_attempts_ = 1;
+      PerformAction(Action::READ_GIT_HASH);
     default:
       CompleteCommand(BATTOR_ERROR_UNEXPECTED_MESSAGE);
   }
@@ -244,6 +260,7 @@ void BattOrAgent::OnMessageRead(bool success,
 
   if (!success) {
     switch (last_action_) {
+      case Action::READ_GIT_HASH:
       case Action::READ_EEPROM:
       case Action::READ_CALIBRATION_FRAME:
       case Action::READ_DATA_FRAME:
@@ -387,6 +404,11 @@ void BattOrAgent::OnMessageRead(bool success,
       CompleteCommand(BATTOR_ERROR_NONE);
       return;
 
+    case Action::READ_GIT_HASH:
+      std::cout << "OnMessageRead READ_GIT_HASH\n";
+      CompleteCommand(BATTOR_ERROR_NONE);
+      return;
+
     default:
       CompleteCommand(BATTOR_ERROR_UNEXPECTED_MESSAGE);
   }
@@ -473,6 +495,16 @@ void BattOrAgent::PerformAction(Action action) {
       connection_->ReadMessage(BATTOR_MESSAGE_TYPE_CONTROL_ACK);
       return;
 
+    case Action::SEND_GIT_HASH_REQUEST:
+      std::cout << "PerformAction SEND_GIT_HASH_REQUEST\n";
+      SendControlMessage(BATTOR_CONTROL_MESSAGE_TYPE_GET_GIT_HASH, 0, 0);
+      return;
+
+    case Action::READ_GIT_HASH:
+      std::cout << "PerformAction READ_GIT_HASH\n";
+      connection_->ReadMessage(BATTOR_MESSAGE_TYPE_CONTROL_ACK);
+      return;
+
     case Action::INVALID:
       NOTREACHED();
   }
@@ -530,6 +562,15 @@ void BattOrAgent::CompleteCommand(BattOrError error) {
           FROM_HERE, base::Bind(&Listener::OnRecordClockSyncMarkerComplete,
                                 base::Unretained(listener_), error));
       break;
+// XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
+// Need to get proper version number.
+    case Command::GET_VERSION:
+      std::cout << "Complete GET_VERSION\n";
+      base::ThreadTaskRunnerHandle::Get()->PostTask(
+          FROM_HERE, base::Bind(&Listener::OnGetVersionComplete,
+                                base::Unretained(listener_),
+                                1, error));
+      break;
     case Command::INVALID:
       NOTREACHED();
   }