1 /* $NetBSD: amiga_bus_simple_1word.c,v 1.9 2014/08/06 14:23:53 joerg Exp $ */ 2 3 /*- 4 * Copyright (c) 1999 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Ignatios Souvatzis. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #include <sys/param.h> 32 #include <sys/device.h> 33 #include <sys/systm.h> 34 35 #include <machine/cpu.h> 36 #include <machine/pte.h> 37 38 #include <sys/cdefs.h> 39 __KERNEL_RCSID(1, "$NetBSD: amiga_bus_simple_1word.c,v 1.9 2014/08/06 14:23:53 joerg Exp $"); 40 41 #define AMIGA_SIMPLE_BUS_STRIDE 1 /* 1 byte per byte */ 42 #define AMIGA_SIMPLE_BUS_WORD_METHODS 43 #define AMIGA_SIMPLE_BUS_LONGWORD_METHODS 44 45 #include "simple_busfuncs.c" 46 47 bsr(oabs(bsr2_swap_), u_int16_t); 48 bsw(oabs(bsw2_swap_), u_int16_t); 49 bsr(oabs(bsr4_swap_), u_int32_t); 50 bsw(oabs(bsw4_swap_), u_int32_t); 51 52 bsrm(oabs(bsrm2_swap_), u_int16_t); 53 bswm(oabs(bswm2_swap_), u_int16_t); 54 55 int oabs(bsm_absolute_)(bus_space_tag_t, bus_addr_t, bus_size_t, int, 56 bus_space_handle_t *); 57 58 /* ARGSUSED */ 59 int 60 oabs(bsm_absolute_)(bus_space_tag_t tag, bus_addr_t address, 61 bus_size_t size, int flags, bus_space_handle_t *handlep) 62 { 63 uint32_t pa = kvtop((void*) tag->base); 64 *handlep = tag->base + (address - pa) * AMIGA_SIMPLE_BUS_STRIDE; 65 return 0; 66 } 67 68 /* ARGSUSED */ 69 u_int16_t 70 oabs(bsr2_swap_)(bus_space_handle_t handle, bus_size_t offset) 71 { 72 volatile u_int16_t *p; 73 u_int16_t x; 74 75 p = (volatile u_int16_t *)(handle + offset * AMIGA_SIMPLE_BUS_STRIDE); 76 x = *p; 77 amiga_bus_reorder_protect(); 78 return bswap16(x); 79 } 80 81 /* ARGSUSED */ 82 void 83 oabs(bsw2_swap_)(bus_space_handle_t handle, bus_size_t offset, unsigned value) 84 { 85 volatile u_int16_t *p; 86 87 p = (volatile u_int16_t *)(handle + offset * AMIGA_SIMPLE_BUS_STRIDE); 88 *p = bswap16( (u_int16_t)value ); 89 amiga_bus_reorder_protect(); 90 } 91 92 /* ARGSUSED */ 93 u_int32_t 94 oabs(bsr4_swap_)(bus_space_handle_t handle, bus_size_t offset) 95 { 96 volatile u_int32_t *p; 97 u_int32_t x; 98 99 p = (volatile u_int32_t *)(handle + offset * AMIGA_SIMPLE_BUS_STRIDE); 100 x = *p; 101 amiga_bus_reorder_protect(); 102 return bswap32(x); 103 } 104 105 /* ARGSUSED */ 106 void 107 oabs(bsw4_swap_)(bus_space_handle_t handle, bus_size_t offset, unsigned value) 108 { 109 volatile u_int32_t *p; 110 111 p = (volatile u_int32_t *)(handle + offset * AMIGA_SIMPLE_BUS_STRIDE); 112 *p = bswap32( (u_int32_t)value ); 113 amiga_bus_reorder_protect(); 114 } 115 116 /* ARGSUSED */ 117 void 118 oabs(bsrm2_swap_)(bus_space_handle_t handle, bus_size_t offset, 119 u_int16_t *pointer, bus_size_t count) 120 { 121 volatile u_int16_t *p; 122 123 p = (volatile u_int16_t *)(handle + offset * AMIGA_SIMPLE_BUS_STRIDE); 124 125 while (count > 0) { 126 *pointer++ = bswap16(*p); 127 amiga_bus_reorder_protect(); 128 --count; 129 } 130 } 131 132 /* ARGSUSED */ 133 void 134 oabs(bswm2_swap_)(bus_space_handle_t handle, bus_size_t offset, 135 const u_int16_t *pointer, bus_size_t count) 136 { 137 volatile u_int16_t *p; 138 139 p = (volatile u_int16_t *)(handle + offset * AMIGA_SIMPLE_BUS_STRIDE); 140 141 while (count > 0) { 142 *p = bswap16(*pointer); 143 amiga_bus_reorder_protect(); 144 ++pointer; 145 --count; 146 } 147 } 148 149 const struct amiga_bus_space_methods amiga_bus_stride_1swap_abs = { 150 151 .bsm = oabs(bsm_absolute_), 152 .bsms = oabs(bsms_), 153 .bsu = oabs(bsu_), 154 .bsa = NULL, 155 .bsf = NULL, 156 157 .bsr1 = oabs(bsr1_), 158 .bsw1 = oabs(bsw1_), 159 .bsrm1 = oabs(bsrm1_), 160 .bswm1 = oabs(bswm1_), 161 .bsrr1 = oabs(bsrr1_), 162 .bswr1 = oabs(bswr1_), 163 .bssr1 = oabs(bssr1_), 164 .bscr1 = oabs(bscr1_), 165 166 .bsr2 = oabs(bsr2_), /* XXX swap? */ 167 .bsw2 = oabs(bsw2_), /* XXX swap? */ 168 .bsrs2 = oabs(bsr2_), 169 .bsws2 = oabs(bsw2_), 170 .bsrm2 = oabs(bsrm2_swap_), 171 .bswm2 = oabs(bswm2_swap_), 172 .bsrms2 = oabs(bsrm2_), 173 .bswms2 = oabs(bswm2_), 174 .bsrr2 = oabs(bsrr2_), /* XXX swap? */ 175 .bswr2 = oabs(bswr2_), /* XXX swap? */ 176 .bssr2 = oabs(bssr2_), /* XXX swap? */ 177 .bscr2 = oabs(bscr2_), /* XXX swap? */ 178 179 .bsr4 = oabs(bsr4_swap_), 180 .bsw4 = oabs(bsw4_swap_), 181 .bsrs4 = oabs(bsr4_), 182 .bsws4 = oabs(bsw4_), 183 .bsrm4 = oabs(bsrm4_), /* XXX swap? */ 184 .bswm4 = oabs(bswm4_), /* XXX swap? */ 185 .bsrms4 = oabs(bsrm4_), 186 .bswms4 = oabs(bswm4_), 187 .bsrr4 = oabs(bsrr4_), /* XXX swap? */ 188 .bswr4 = oabs(bswr4_), /* XXX swap? */ 189 .bsrrs4 = oabs(bsrr4_), 190 .bswrs4 = oabs(bswr4_), 191 .bssr4 = oabs(bssr4_), /* XXX swap? */ 192 .bscr4 = oabs(bscr4_) /* XXX swap? */ 193 }; 194 195 const struct amiga_bus_space_methods amiga_bus_stride_1swap = { 196 197 .bsm = oabs(bsm_), 198 .bsms = oabs(bsms_), 199 .bsu = oabs(bsu_), 200 .bsa = NULL, 201 .bsf = NULL, 202 203 .bsr1 = oabs(bsr1_), 204 .bsw1 = oabs(bsw1_), 205 .bsrm1 = oabs(bsrm1_), 206 .bswm1 = oabs(bswm1_), 207 .bsrr1 = oabs(bsrr1_), 208 .bswr1 = oabs(bswr1_), 209 .bssr1 = oabs(bssr1_), 210 .bscr1 = oabs(bscr1_), 211 212 .bsr2 = oabs(bsr2_swap_), 213 .bsw2 = oabs(bsw2_swap_), 214 .bsrs2 = oabs(bsr2_), 215 .bsws2 = oabs(bsw2_), 216 .bsrm2 = oabs(bsrm2_swap_), 217 .bswm2 = oabs(bswm2_swap_), 218 .bsrms2 = oabs(bsrm2_), 219 .bswms2 = oabs(bswm2_), 220 .bsrr2 = oabs(bsrr2_), /* XXX swap? */ 221 .bswr2 = oabs(bswr2_), /* XXX swap? */ 222 .bsrrs2 = oabs(bsrr2_), 223 .bswrs2 = oabs(bswr2_), 224 .bssr2 = oabs(bssr2_), /* XXX swap? */ 225 .bscr2 = oabs(bscr2_), /* XXX swap? */ 226 227 .bsr4 = oabs(bsr4_swap_), 228 .bsw4 = oabs(bsw4_swap_), 229 .bsrs4 = oabs(bsr4_), 230 .bsws4 = oabs(bsw4_), 231 .bsrm4 = oabs(bsrm4_), /* XXX swap? */ 232 .bswm4 = oabs(bswm4_), /* XXX swap? */ 233 .bsrms4 = oabs(bsrm4_), 234 .bswms4 = oabs(bswm4_), 235 .bsrr4 = oabs(bsrr4_), /* XXX swap? */ 236 .bswr4 = oabs(bswr4_), /* XXX swap? */ 237 .bsrrs4 = oabs(bsrr4_), 238 .bswrs4 = oabs(bswr4_), 239 .bssr4 = oabs(bssr4_), /* XXX swap? */ 240 .bscr4 = oabs(bscr4_) /* XXX swap? */ 241 }; 242
Indexes created Tue Sep 30 17:09:57 GMT 2025