tma: First pass at tio file read/write

stratosphere/tma/source/dmnt.h

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2018 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 <switch.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+    u64 handle;
+} DmntFile;
+
+typedef enum {
+    DmntTIOCreateOption_CreateNew = 1,
+    DmntTIOCreateOption_CreateAlways = 2,
+    DmntTIOCreateOption_OpenExisting = 3,
+    DmntTIOCreateOption_OpenAlways = 4,
+    DmntTIOCreateOption_ResetSize = 5,
+} DmntTIOCreateOption;
+
+Result dmntInitialize(void);
+void dmntExit(void);
+
+Result dmntTargetIOFileOpen(DmntFile *out, const char *path, int flags, DmntTIOCreateOption create_option);
+Result dmntTargetIOFileClose(DmntFile *f);
+Result dmntTargetIOFileRead(DmntFile *f, u64 off, void* buf, size_t len, size_t* out_read);
+Result dmntTargetIOFileWrite(DmntFile *f, u64 off, const void* buf, size_t len, size_t* out_written);
+
+#ifdef __cplusplus
+}
+#endif