[Kernel] Rename UnknownFEApp to XamApp.

src/xenia/kernel/xam/apps/xam_app.cc

@@ -0,0 +1,69 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2020 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#include "xenia/kernel/xam/apps/xam_app.h"
+
+#include "xenia/base/logging.h"
+#include "xenia/base/threading.h"
+
+namespace xe {
+namespace kernel {
+namespace xam {
+namespace apps {
+
+XamApp::XamApp(KernelState* kernel_state) : App(kernel_state, 0xFE) {}
+
+X_RESULT XamApp::DispatchMessageSync(uint32_t message, uint32_t buffer_ptr,
+                                     uint32_t buffer_length) {
+  // NOTE: buffer_length may be zero or valid.
+  auto buffer = memory_->TranslateVirtual(buffer_ptr);
+  switch (message) {
+    case 0x00020021: {
+      struct message_data {
+        char unk_00[64];
+        xe::be<uint32_t> unk_40;  // KeGetCurrentProcessType() < 1 ? 1 : 0
+        xe::be<uint32_t> unk_44;  // ? output_ptr ?
+        xe::be<uint32_t> unk_48;  // ? overlapped_ptr ?
+      }* data = reinterpret_cast<message_data*>(buffer);
+      assert_true(buffer_length == sizeof(message_data));
+      auto unk = memory_->TranslateVirtual<xe::be<uint32_t>*>(data->unk_44);
+      *unk = 0;
+      XELOGD("XamApp(0x00020021)('{}', {:08X}, {:08X}, {:08X})", data->unk_00,
+             (uint32_t)data->unk_40, (uint32_t)data->unk_44,
+             (uint32_t)data->unk_48);
+      return X_ERROR_SUCCESS;
+    }
+    case 0x00021012: {
+      XELOGD("XamApp(0x00021012)");
+      return X_ERROR_SUCCESS;
+    }
+    case 0x00022005: {
+      struct message_data {
+        xe::be<uint32_t> unk_00;  // ? output_ptr ?
+        xe::be<uint32_t> unk_04;  // ? value/jump to? ?
+      }* data = reinterpret_cast<message_data*>(buffer);
+      assert_true(buffer_length == sizeof(message_data));
+      auto unk = memory_->TranslateVirtual<xe::be<uint32_t>*>(data->unk_00);
+      auto adr = *unk;
+      XELOGD("XamApp(0x00022005)(%.8X, %.8X)", (uint32_t)data->unk_00,
+             (uint32_t)data->unk_04);
+      return X_ERROR_SUCCESS;
+    }
+  }
+  XELOGE(
+      "Unimplemented XAM message app={:08X}, msg={:08X}, arg1={:08X}, "
+      "arg2={:08X}",
+      app_id(), message, buffer_ptr, buffer_length);
+  return X_STATUS_UNSUCCESSFUL;
+}
+
+}  // namespace apps
+}  // namespace xam
+}  // namespace kernel
+}  // namespace xe