Sansa View: replace real bootloader with a simple test code.

After placing the firmware.mi4 file in the root dir of the player in UMS mode of
the OF, Sansa should do stupid blinking with the backlight and buttonlight
alternately. Recovering from this state is possible through the recovery mode
(see Wiki), by putting an original copy of the firmware.mi4.

Change-Id: Ia913442b97e8c405f55c4676b9a2bf0b1b1d05d6
diff --git a/bootloader/SOURCES b/bootloader/SOURCES
index 4f3cd38..12347c5 100644
--- a/bootloader/SOURCES
+++ b/bootloader/SOURCES
@@ -21,6 +21,8 @@
 #elif defined(SANSA_PP_ERASE)
 main-ppsansawipe.c
 fat32format.c
+#elif defined(SANSA_VIEW)
+sansaview.c
 #else
 show_logo.c
 main-pp.c
diff --git a/bootloader/sansaview.c b/bootloader/sansaview.c
new file mode 100644
index 0000000..b1f0dbd
--- /dev/null
+++ b/bootloader/sansaview.c
@@ -0,0 +1,65 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2014 by Szymon Dziok
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+/*
+SANSA VIEW: TESTING CODE
+*/
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include "config.h"
+#include "inttypes.h"
+#include "cpu.h"
+#include "system.h"
+#include "lcd.h"
+#include "kernel.h"
+#include "thread.h"
+#include "storage.h"
+#include "fat.h"
+#include "disk.h"
+#include "font.h"
+#include "backlight.h"
+#include "backlight-target.h"
+#include "button.h"
+#include "panic.h"
+#include "power.h"
+#include "file.h"
+#include "common.h"
+
+void main(void)
+{
+    system_init();
+    kernel_init();
+    disable_irq();
+
+    while(1)
+    {
+       _backlight_on();
+       _buttonlight_off();
+       sleep(HZ/4);
+       _backlight_off();
+       _buttonlight_on();
+       sleep(HZ/4);
+    }
+}