Annotation of sys/arch/alpha/isa/isafcns_jensen.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: isafcns_jensen.c,v 1.7 2002/06/25 21:33:21 miod Exp $ */
! 2: /* $NetBSD: isafcns_jensen.c,v 1.4 1996/10/13 02:59:54 christos Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1995, 1996 Carnegie-Mellon University.
! 6: * All rights reserved.
! 7: *
! 8: * Author: Chris G. Demetriou
! 9: *
! 10: * Permission to use, copy, modify and distribute this software and
! 11: * its documentation is hereby granted, provided that both the copyright
! 12: * notice and this permission notice appear in all copies of the
! 13: * software, derivative works or modified versions, and any portions
! 14: * thereof, and that both notices appear in supporting documentation.
! 15: *
! 16: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
! 17: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
! 18: * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
! 19: *
! 20: * Carnegie Mellon requests users of this software to return to
! 21: *
! 22: * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
! 23: * School of Computer Science
! 24: * Carnegie Mellon University
! 25: * Pittsburgh PA 15213-3890
! 26: *
! 27: * any improvements or extensions that they make and grant Carnegie the
! 28: * rights to redistribute these changes.
! 29: */
! 30:
! 31: #include <sys/types.h>
! 32: #include <machine/pio.h>
! 33: #include <machine/pte.h>
! 34:
! 35: static u_int8_t jensen_inb(int port);
! 36: /* static void jensen_insb(int port, void *addr, int cnt); */
! 37: static u_int16_t jensen_inw(int port);
! 38: /* static void jensen_insw(int port, void *addr, int cnt); */
! 39: u_int32_t jensen_inl(int port);
! 40: /* static void jensen_insl(int port, void *addr, int cnt); */
! 41:
! 42: static void jensen_outb(int port, u_int8_t datum);
! 43: /* static void jensen_outsb(int port, void *addr, int cnt); */
! 44: static void jensen_outw(int port, u_int16_t datum);
! 45: /* static void jensen_outsw(int port, void *addr, int cnt); */
! 46: static void jensen_outl(int port, u_int32_t datum);
! 47: /* static void jensen_outsl(int port, void *addr, int cnt); */
! 48:
! 49: struct alpha_isafcndesc jensen_isafcns = {
! 50: jensen_inb, 0 /* jensen_insb */,
! 51: jensen_inw, 0 /* jensen_insw */,
! 52: jensen_inl, 0 /* jensen_insl */,
! 53: jensen_outb, 0 /* jensen_outsb */,
! 54: jensen_outw, 0 /* jensen_outsw */,
! 55: jensen_outl, 0 /* jensen_outsl */,
! 56: };
! 57:
! 58: u_int8_t
! 59: jensen_inb(ioaddr)
! 60: int ioaddr;
! 61: {
! 62: u_int32_t *port, val;
! 63: u_int8_t rval;
! 64: int offset;
! 65:
! 66: offset = ioaddr & 3;
! 67: port = (int32_t *)phystok0seg(0x300000000L | 0 << 5 | ioaddr << 7);
! 68: val = *port;
! 69: rval = ((val) >> (8 * offset)) & 0xff;
! 70: rval = val & 0xff;
! 71:
! 72: printf("inb(0x%x) => 0x%x @ %p => 0x%x\n", ioaddr, val, port, rval);
! 73:
! 74: return rval;
! 75: }
! 76:
! 77: u_int16_t
! 78: jensen_inw(ioaddr)
! 79: int ioaddr;
! 80: {
! 81: u_int32_t *port, val;
! 82: u_int16_t rval;
! 83: int offset;
! 84:
! 85: offset = ioaddr & 3;
! 86: port = (int32_t *)phystok0seg(0x300000000L | 1 << 5 | ioaddr << 7);
! 87: val = *port;
! 88: rval = ((val) >> (8 * offset)) & 0xffff;
! 89: rval = val & 0xffff;
! 90:
! 91: printf("inw(0x%x) => 0x%x @ %p => 0x%x", ioaddr, val, port, rval);
! 92:
! 93: return rval;
! 94: }
! 95:
! 96: u_int32_t
! 97: jensen_inl(ioaddr)
! 98: int ioaddr;
! 99: {
! 100: u_int32_t *port, val;
! 101: u_int32_t rval;
! 102: int offset;
! 103:
! 104: offset = ioaddr & 3;
! 105: port = (int32_t *)phystok0seg(0x300000000L | 3 << 5 | ioaddr << 7);
! 106: val = *port;
! 107: rval = ((val) >> (8 * offset)) & 0xffffffff;
! 108: rval = val & 0xffffffff;
! 109:
! 110: printf("inl(0x%x) => 0x%x @ %p => 0x%x\n", ioaddr, val, port, rval);
! 111:
! 112: return rval;
! 113: }
! 114:
! 115: void
! 116: jensen_outb(ioaddr, val)
! 117: int ioaddr;
! 118: u_int8_t val;
! 119: {
! 120: u_int32_t *port, nval;
! 121: int offset;
! 122:
! 123: offset = ioaddr & 3;
! 124: nval = val /*<< (8 * offset)*/;
! 125: port = (int32_t *)phystok0seg(0x300000000L | 0 << 5 | ioaddr << 7);
! 126:
! 127: printf("outb(0x%x, 0x%x) => 0x%x @ %p\n", ioaddr, val, nval, port);
! 128:
! 129: *port = nval;
! 130: }
! 131:
! 132: void
! 133: jensen_outw(ioaddr, val)
! 134: int ioaddr;
! 135: u_int16_t val;
! 136: {
! 137: u_int32_t *port, nval;
! 138: int offset;
! 139:
! 140: offset = ioaddr & 3;
! 141: nval = val /*<< (8 * offset)*/;
! 142: port = (int32_t *)phystok0seg(0x300000000L | 1 << 5 | ioaddr << 7);
! 143:
! 144: printf("outb(0x%x, 0x%x) => 0x%x @ %p\n", ioaddr, val, nval, port);
! 145:
! 146: *port = nval;
! 147: }
! 148:
! 149: void
! 150: jensen_outl(ioaddr, val)
! 151: int ioaddr;
! 152: u_int32_t val;
! 153: {
! 154: u_int32_t *port, nval;
! 155: int offset;
! 156:
! 157: offset = ioaddr & 3;
! 158: nval = val /*<< (8 * offset)*/;
! 159: port = (int32_t *)phystok0seg(0x300000000L | 3 << 5 | ioaddr << 7);
! 160:
! 161: printf("outb(0x%x, 0x%x) => 0x%x @ %p\n", ioaddr, val, nval, port);
! 162:
! 163: *port = nval;
! 164: }
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