usb: add ds client api

libraries/libstratosphere/source/usb/usb_remote_ds_endpoint.hpp

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2018-2020 Atmosphère-NX
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#pragma once
+#include <stratosphere.hpp>
+
+namespace ams::usb {
+
+    class RemoteDsEndpoint {
+        private:
+            Service m_srv;
+        public:
+            RemoteDsEndpoint(Service &srv) : m_srv(srv) { /* ... */ }
+            virtual ~RemoteDsEndpoint() { serviceClose(std::addressof(m_srv)); }
+        public:
+            Result PostBufferAsync(sf::Out<u32> out_urb_id, u64 address, u32 size);
+            Result Cancel();
+            Result GetCompletionEvent(sf::OutCopyHandle out);
+            Result GetUrbReport(sf::Out<usb::UrbReport> out);
+            Result Stall();
+            Result SetZlt(bool zlt);
+    };
+    static_assert(ds::IsIDsEndpoint<RemoteDsEndpoint>);
+
+}