1 #ifndef __ALT_BUSY_SLEEP_H 2 #define __ALT_BUSY_SLEEP_H 3 4 /* 5 * Copyright (c) 2003 Altera Corporation, San Jose, California, USA. 6 * All rights reserved. 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a copy 9 * of this software and associated documentation files (the "Software"), to 10 * deal in the Software without restriction, including without limitation the 11 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 12 * sell copies of the Software, and to permit persons to whom the Software is 13 * furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice shall be included in 16 * all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 21 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 23 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 24 * DEALINGS IN THE SOFTWARE. 25 */ 26 27 /* 28 * The function alt_busy_sleep provides a busy loop implementation of usleep. 29 * This is used to provide usleep for the standalone HAL, or when the timer is 30 * unavailable in uC/OS-II. 31 */ 32 33 extern unsigned int alt_busy_sleep (unsigned int us); 34 35 #endif /* __ALT_BUSY_SLEEP_H */ 36
