| /*************************************************************************** |
| * __________ __ ___. |
| * Open \______ \ ____ ____ | | _\_ |__ _______ ___ |
| * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / |
| * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < |
| * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ |
| * \/ \/ \/ \/ \/ |
| * $Id$ |
| * |
| * Copyright (C) 2012 by Amaury Pouly |
| * |
| * 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. |
| * |
| ****************************************************************************/ |
| #ifndef __SAFE_READ__ |
| #define __SAFE_READ__ |
| |
| #include "system.h" |
| |
| /* Try to read an X-bit unsigned integer. If the address is not readable, |
| * returns false. Otherwise returns true and store the result in *value |
| * if value is not NULL */ |
| bool safe_read8(uint8_t *addr, uint8_t *value); |
| bool safe_read16(uint16_t *addr, uint16_t *value); |
| bool safe_read32(uint32_t *addr, uint32_t *value); |
| |
| #endif /* __SAFE_READ__ */ |