From f3f1c01d5712ff6dc7a8f1a99a28ebbca3589ce6 Mon Sep 17 00:00:00 2001
From: Stefan `Sec` Zehl <sec@42.org>
Date: Wed, 13 Jul 2011 00:22:18 +0200
Subject: [PATCH] Add f_get_rc_string to get result code strings. Probably only
 use for debugging

---
 firmware/filesystem/Makefile |  1 +
 firmware/filesystem/ff.h     |  3 +++
 firmware/filesystem/util.c   | 18 ++++++++++++++++++
 3 files changed, 22 insertions(+)
 create mode 100644 firmware/filesystem/util.c

diff --git a/firmware/filesystem/Makefile b/firmware/filesystem/Makefile
index d35cdb3..75506ca 100644
--- a/firmware/filesystem/Makefile
+++ b/firmware/filesystem/Makefile
@@ -9,6 +9,7 @@ OBJS += diskio.o
 OBJS += iobase.o
 OBJS += mmc.o
 OBJS += at45db041d.o
+OBJS += util.o
 
 LIBNAME=fat
 
diff --git a/firmware/filesystem/ff.h b/firmware/filesystem/ff.h
index 251d261..9a5eb20 100644
--- a/firmware/filesystem/ff.h
+++ b/firmware/filesystem/ff.h
@@ -328,6 +328,9 @@ int ff_del_syncobj (_SYNC_t);		/* Delete a sync object */
 #define	ST_DWORD(ptr,val)	*(BYTE*)(ptr)=(BYTE)(val); *((BYTE*)(ptr)+1)=(BYTE)((WORD)(val)>>8); *((BYTE*)(ptr)+2)=(BYTE)((DWORD)(val)>>16); *((BYTE*)(ptr)+3)=(BYTE)((DWORD)(val)>>24)
 #endif
 
+/* Utility functions */
+const char* f_get_rc_string (FRESULT rc);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/firmware/filesystem/util.c b/firmware/filesystem/util.c
new file mode 100644
index 0000000..f183b1a
--- /dev/null
+++ b/firmware/filesystem/util.c
@@ -0,0 +1,18 @@
+#include <ff.h>
+
+const TCHAR *rcstrings =
+    _T("OK\0DISK_ERR\0INT_ERR\0NOT_READY\0NO_FILE\0NO_PATH\0INVALID_NAME\0")
+    _T("DENIED\0EXIST\0INVALID_OBJECT\0WRITE_PROTECTED\0INVALID_DRIVE\0")
+    _T("NOT_ENABLED\0NO_FILE_SYSTEM\0MKFS_ABORTED\0TIMEOUT\0LOCKED\0")
+    _T("NOT_ENOUGH_CORE\0TOO_MANY_OPEN_FILES\0");
+
+const char* f_get_rc_string (FRESULT rc) {
+	FRESULT i;
+    const char *p=rcstrings;
+
+	for (i = 0; i != rc && *p; i++) {
+		while(*p++) ;
+	}
+    return p;
+}
+