pf2: add diskset init

libraries/libvapours/include/vapours/prfile2/prfile2_handle.hpp

@@ -0,0 +1,49 @@
+/*
+ * 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 <vapours/prfile2/prfile2_common.hpp>
+
+namespace ams::prfile2 {
+
+    using HandleType = util::BitPack32;
+
+    struct HandleField {
+        using Id        = util::BitPack32::Field< 0,  8>;
+        using Kind      = util::BitPack32::Field< 8,  8>;
+        using Signature = util::BitPack32::Field<16, 16>;
+    };
+
+    enum HandleKind {
+        HandleKind_Disk      = 3,
+        HandleKind_Partition = 4,
+    };
+
+    constexpr ALWAYS_INLINE HandleType ConstructHandle(u8 id, HandleKind kind, u16 signature) {
+        /* Construct the handle. */
+        HandleType val = {};
+        val.Set<HandleField::Id>(id);
+        val.Set<HandleField::Kind>(kind);
+        val.Set<HandleField::Signature>(signature);
+        return val;
+    };
+
+    constexpr ALWAYS_INLINE HandleType ConstructDiskHandle(u8 id, u16 signature) { return ConstructHandle(id, HandleKind_Disk, signature); }
+    constexpr ALWAYS_INLINE HandleType ConstructPartitionHandle(u8 id, u16 signature) { return ConstructHandle(id, HandleKind_Partition, signature); }
+
+    constexpr ALWAYS_INLINE bool IsDiskHandle(HandleType handle) { return handle.Get<HandleField::Kind>() == HandleKind_Disk; }
+    constexpr ALWAYS_INLINE bool IsPartitionHandle(HandleType handle) { return handle.Get<HandleField::Kind>() == HandleKind_Partition; }
+
+}