1 /* $NetBSD: bus_funcs.h,v 1.2 2022/02/16 23:49:26 riastradh Exp $ */ 2 3 /* 4 * Copyright (c) 1996 Leo Weppelman. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef _AMIGAPPC_BUS_FUNCS_H_ 28 #define _AMIGAPPC_BUS_FUNCS_H_ 29 30 /* 31 * Macro definition of map, unmap, etc. 32 */ 33 34 #define bus_space_map(t, o, s, f, hp) \ 35 ((t)->absm->bsm)((t), (o), (s), (f), (hp)) 36 37 #define bus_space_subregion(t, h, o, s, hp) \ 38 ((t)->absm->bsms)((h), (o), (s), (hp)) 39 40 #define bus_space_unmap(t, h, s) \ 41 ((t)->absm->bsu)((h), (s)) 42 43 /* 44 * Macro definition of _2 functions as indirect method array calls 45 */ 46 47 /* 0: Helper macros */ 48 49 #define dbsdr(n, t, h, o) ((t)->absm->n)((h), (o)) 50 #define dbsdw(n, t, h, o, v) ((t)->absm->n)((h), (o), (v)) 51 #define dbsm(n, t, h, o, p, c) ((t)->absm->n)((h), (o), (p), (c)) 52 #define dbss(n, t, h, o, v, c) ((t)->absm->n)((h), (o), (v), (c)) 53 #define dbsc(n, t, h, o, v, c) ((t)->absm->n)((h), (o), (v), (c)) 54 55 /* 1: byte-wide "functions" */ 56 57 #define bus_space_read_1(t, h, o) dbsdr(bsr1, t, h, o) 58 #define bus_space_write_1(t, h, o, v) dbsdw(bsw1, t, h, o, v) 59 60 #define bus_space_read_multi_1(t, h, o, p, c) dbsm(bsrm1, t, h, o, p, c) 61 #define bus_space_write_multi_1(t, h, o, p, c) dbsm(bswm1, t, h, o, p, c) 62 63 #define bus_space_read_region_1(t, h, o, p, c) dbsm(bsrr1, t, h, o, p, c) 64 #define bus_space_write_region_1(t, h, o, p, c) dbsm(bswr1, t, h, o, p, c) 65 66 #define bus_space_set_region_1(t, h, o, v, c) dbss(bssr1, t, h, o, v, c) 67 #define bus_space_copy_region_1(t, h, o, g, q, c) dbss(bscr1, t, h, o, g, q, c) 68 69 70 /* 2: word-wide "functions" */ 71 72 #define bus_space_read_2(t, h, o) dbsdr(bsr2, t, h, o) 73 #define bus_space_write_2(t, h, o, v) dbsdw(bsw2, t, h, o, v) 74 #define bus_space_read_stream_2(t, h, o) dbsdr(bsrs2, t, h, o) 75 #define bus_space_write_stream_2(t, h, o, v) dbsdw(bsws2, t, h, o, v) 76 77 #define bus_space_read_multi_2(t, h, o, p, c) dbsm(bsrm2, t, h, o, p, c) 78 #define bus_space_write_multi_2(t, h, o, p, c) dbsm(bswm2, t, h, o, p, c) 79 80 #define bus_space_read_multi_stream_2(t, h, o, p, c) \ 81 dbsm(bsrms2, t, h, o, p, c) 82 83 #define bus_space_write_multi_stream_2(t, h, o, p, c) \ 84 dbsm(bswms2, t, h, o, p, c) 85 86 #define bus_space_read_region_2(t, h, o, p, c) dbsm(bsrr2, t, h, o, p, c) 87 #define bus_space_write_region_2(t, h, o, p, c) dbsm(bswr2, t, h, o, p, c) 88 89 #define bus_space_read_region_stream_2(t, h, o, p, c) \ 90 dbsm(bsrrs2, t, h, o, p, c) 91 92 #define bus_space_write_region_stream_2(t, h, o, p, c) \ 93 dbsm(bswrs2, t, h, o, p, c) 94 95 #define bus_space_set_region_2(t, h, o, v, c) dbss(bssr2, t, h, o, v, c) 96 #define bus_space_copy_region_2(t, h, o, g, q, c) dbss(bscr2, t, h, o, g, q, c) 97 98 /* 4: Fake 32-bit macros */ 99 100 #define bus_space_read_4(t, h, o) \ 101 (panic("bus_space_read_4 not implemented"), 0) 102 103 #define bus_space_write_4(t, h, o, v) \ 104 panic("bus_space_write_4 not implemented") 105 106 #define bus_space_read_stream_4(t, h, o) \ 107 (panic("bus_space_read_stream_4 not implemented"), 0) 108 109 #define bus_space_write_stream_4(t, h, o, v) \ 110 panic("bus_space_read_stream_4 not implemented") 111 112 #define bus_space_read_multi_4(t, h, o, p, c) \ 113 panic("bus_space_read_multi_4 not implemented") 114 115 #define bus_space_write_multi_4(t, h, o, p, c) \ 116 panic("bus_space_write_multi_4 not implemented") 117 118 #define bus_space_read_multi_stream_4(t, h, o, p, c) \ 119 panic("bus_space_read_multi_stream_4 not implemented") 120 121 #define bus_space_write_multi_stream_4(t, h, o, p, c) \ 122 panic("bus_space_write_multi_stream_4 not implemented") 123 124 #define bus_space_read_region_stream_4(t, h, o, p, c) \ 125 panic("bus_space_read_region_stream_4 not implemented") 126 127 #define bus_space_write_region_stream_4(t, h, o, p, c) \ 128 panic("bus_space_write_region_stream_4 not implemented") 129 130 /* 131 * Bus read/write barrier methods. 132 * 133 * void bus_space_barrier __P((bus_space_tag_t tag, 134 * bus_space_handle_t bsh, bus_size_t offset, 135 * bus_size_t len, int flags)); 136 * 137 * Note: the 680x0 does not currently require barriers, but we must 138 * provide the flags to MI code. 139 */ 140 #define bus_space_barrier(t, h, o, l, f) \ 141 ((void)((void)(t), (void)(h), (void)(o), (void)(l), (void)(f))) 142 143 /* Instruction for enforcing reorder protection. */ 144 #define amiga_bus_reorder_protect() __asm volatile("eieio" ::: "memory") 145 146 #endif /* _AMIGAPPC_BUS_FUNCS_H_ */ 147
Indexes created Thu Oct 02 07:10:07 GMT 2025