Rockbox as an application: Commit current Android port progress.

General state is: Rockbox is usable (plays music, saves configuration, touchscreen works too).
Problems:
 - Playing music in the background (i.e. when switching to another app) doesn't work reliably, but I'm working on that now.
 - no cabbiev2 (only some preliminary files for it), no other default theme.
 - screen flickers sometimes if the updates are too frequent
 - no multi screen apk/package
 - strange behavior when a phone call comes in

The java files (and the eclipse project) resides in android/, which is also supposed to be the build folder.
I've put a small README in there for instructions. There are some steps needed after the make part, which are described there,
and which eclipse mostly handles. But there ought to be some script/makefile rules which do that instead in the future.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27668 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 59 insertions, 0 deletions

diff --git a/firmware/target/hosted/android/system-android.c b/firmware/target/hosted/android/system-android.c
new file mode 100644
index 0000000000..07dff2ed56
--- /dev/null
+++ b/firmware/target/hosted/android/system-android.c
@@ -0,0 +1,59 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (c) 2010 Thomas Martitz
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+
+#include <jni.h>
+#include "config.h"
+#include "system.h"
+
+void system_exception_wait(void) { }
+void system_reboot(void) { }
+void power_off(void) { }
+void system_init(void) { }
+
+
+/* global fields for use with various JNI calls */
+JNIEnv *env_ptr;
+jobject RockboxActivity_instance;
+jclass  RockboxActivity_class;
+
+uintptr_t *stackbegin;
+uintptr_t *stackend;
+
+extern int main(void);
+/* this is the entry point of the android app initially called by jni */
+JNIEXPORT void JNICALL
+Java_org_rockbox_RockboxActivity_main(JNIEnv *env, jobject this)
+{
+    /* hack!!! we can't have a valid stack pointer otherwise.
+     * but we don't really need it anyway, thread.c only needs it
+     * for overflow detection which doesn't apply for the main thread
+     * (it's managed by the OS) */
+
+    (void)env;
+    (void)this;
+    volatile uintptr_t stack = 0;
+    stackbegin = stackend = &stack;
+    env_ptr = env;
+    RockboxActivity_instance = this;
+    RockboxActivity_class = (*env)->GetObjectClass(env, this);
+    main();
+}