fuzev2: prevent button light flickering when accessing µSD
[kugel-rb.git] / firmware / buffer.c
blob07d06cd4a022b39c52f76f64b992de5fcb161885
1 /***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
10 * Copyright (C) 2002 by Linus Nielsen Feltzing
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
20 ****************************************************************************/
21 #include <stdio.h>
22 #include "buffer.h"
24 #ifdef SIMULATOR
25 unsigned char audiobuffer[(MEM*1024-256)*1024];
26 unsigned char *audiobufend = audiobuffer + sizeof(audiobuffer);
27 #else
28 /* defined in linker script */
29 extern unsigned char audiobuffer[];
30 #endif
32 unsigned char *audiobuf;
34 void buffer_init(void)
36 /* 32-bit aligned */
37 audiobuf = (void *)(((unsigned long)audiobuffer + 3) & ~3);
40 void *buffer_alloc(size_t size)
42 void *retval = audiobuf;
44 audiobuf += size;
45 /* 32-bit aligned */
46 audiobuf = (void *)(((unsigned long)audiobuf + 3) & ~3);
48 return retval;