pcl720.h revision 82498
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 _PCL720_DEFINED 21#define _PCL720_DEFINED 22 23#define pcl720_data(base,bit) (base+(bit>>3)) 24#define pcl720_data_0_7(base) (base+0) 25#define pcl720_data_8_15(base) (base+1) 26#define pcl720_data_16_23(base) (base+2) 27#define pcl720_data_24_31(base) (base+3) 28#define pcl720_cntr(base,cntr) (base+4+cntr) /* cntr: 0..2 */ 29#define pcl720_cntr_0(base) (base+4) 30#define pcl720_cntr_1(base) (base+5) 31#define pcl720_cntr_2(base) (base+6) 32#define pcl720_ctrl(base) (base+7) 33 34#ifndef DEBUG_PCL720 35#define pcl720_inb(x) inb(x) 36#define pcl720_outb(x,y) outb(x,y) 37#else 38static unsigned char pcl720_inb(int addr) { 39 unsigned char x = inb(addr); 40 fprintf(DEBUG_PCL720, "inb(0x%x) -> 0x%x\n", addr, x); 41 return (x); 42} 43static void pcl720_outb(int addr, unsigned char x) { 44 outb(addr, x); 45 fprintf(DEBUG_PCL720, "outb(0x%x, 0x%x)\n", addr, x); 46} 47#endif 48 49#define pcl720_load(Base,Cntr,Mode,Val) \ 50 ({ register unsigned int b = Base, c = Cntr, v = Val; \ 51 i8253_ctrl ctrl; \ 52 \ 53 ctrl.s.bcd = i8253_binary; \ 54 ctrl.s.mode = Mode; \ 55 ctrl.s.rl = i8253_lmb; \ 56 ctrl.s.cntr = c; \ 57 pcl720_outb(pcl720_ctrl(b), ctrl.i); \ 58 pcl720_outb(pcl720_cntr(b,c), v); \ 59 pcl720_outb(pcl720_cntr(b,c), v >> 8); \ 60 v; \ 61 }) 62 63#define pcl720_read(Base,Cntr) \ 64 ({ register unsigned int b = Base, v; \ 65 i8253_ctrl ctrl; \ 66 \ 67 ctrl.s.rl = i8253_latch; \ 68 ctrl.s.cntr = i8253_cntr_0; \ 69 pcl720_outb(pcl720_ctrl(b), ctrl.i); \ 70 v = pcl720_inb(pcl720_cntr_0(b)); \ 71 v |= (pcl720_inb(pcl720_cntr_0(b)) << 8); \ 72 v; \ 73 }) 74 75#define pcl720_input(Base) \ 76 ({ register unsigned int b = Base, v; \ 77 \ 78 v = pcl720_inb(pcl720_data_0_7(b)); \ 79 v |= (pcl720_inb(pcl720_data_8_15(b)) << 8); \ 80 v |= (pcl720_inb(pcl720_data_16_23(b)) << 16); \ 81 v |= (pcl720_inb(pcl720_data_24_31(b)) << 24); \ 82 v; \ 83 }) 84 85#define pcl720_output(Base,Value) \ 86 ({ register unsigned int b = Base, v = Value; \ 87 \ 88 pcl720_outb(pcl720_data_0_7(b), v); \ 89 pcl720_outb(pcl720_data_8_15(b), v << 8); \ 90 pcl720_outb(pcl720_data_16_23(b), v << 16); \ 91 pcl720_outb(pcl720_data_24_31(b), v << 24); \ 92 v; \ 93 }) 94 95#endif /*_PCL720_DEFINED*/ 96