1 /* Copyright (c) 1995 Vixie Enterprises 2 * 3 * Permission to use, copy, modify, and distribute this software for any 4 * purpose with or without fee is hereby granted, provided that the above 5 * copyright notice and this permission notice appear in all copies, and that 6 * the name of Vixie Enterprises not be used in advertising or publicity 7 * pertaining to distribution of the document or software without specific, 8 * written prior permission. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND VIXIE ENTERPRISES DISCLAIMS ALL 11 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES 12 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL VIXIE ENTERPRISES 13 * BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES 14 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 15 * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 16 * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 17 * SOFTWARE. 18 */ 19 20 #ifndef _I8253_DEFINED 21 #define _I8253_DEFINED 22 23 typedef union { 24 unsigned char i; 25 struct { 26 unsigned int bcd : 1; 27 #define i8253_binary 0 28 #define i8253_bcd 1 29 unsigned int mode : 3; 30 #define i8253_termcnt 0 31 #define i8253_oneshot 1 32 #define i8253_rategen 2 33 #define i8253_sqrwave 3 34 #define i8253_softstb 4 35 #define i8253_hardstb 5 36 unsigned int rl : 2; 37 #define i8253_latch 0 38 #define i8253_lsb 1 39 #define i8253_msb 2 40 #define i8253_lmb 3 41 unsigned int cntr : 2; 42 #define i8253_cntr_0 0 43 #define i8253_cntr_1 1 44 #define i8253_cntr_2 2 45 } s; 46 } i8253_ctrl; 47 48 #endif /*_I8253_DEFINED*/ 49