1 /* 2 * Copyright (c) 1997 Per Fogelstrom, Opsycon AB and RTMX Inc, USA. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 3. All advertising materials mentioning features or use of this software 13 * must display the following acknowledgement: 14 * This product includes software developed under OpenBSD by 15 * Per Fogelstrom Opsycon AB for RTMX Inc, North Carolina, USA. 16 * 4. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 20 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $NetBSD: pio.h,v 1.1 1998/05/15 10:15:54 tsubai Exp $ 32 * $OpenBSD: pio.h,v 1.1 1997/10/13 10:53:47 pefo Exp $ 33 * $FreeBSD$ 34 */ 35 36 #ifndef _MACHINE_PIO_H_ 37 #define _MACHINE_PIO_H_ 38 /* 39 * I/O macros. 40 */ 41 42 static __inline void 43 __outb(volatile u_int8_t *a, u_int8_t v) 44 { 45 *a = v; 46 __asm__ volatile("eieio; sync"); 47 } 48 49 static __inline void 50 __outw(volatile u_int16_t *a, u_int16_t v) 51 { 52 *a = v; 53 __asm__ volatile("eieio; sync"); 54 } 55 56 static __inline void 57 __outl(volatile u_int32_t *a, u_int32_t v) 58 { 59 *a = v; 60 __asm__ volatile("eieio; sync"); 61 } 62 63 static __inline void 64 __outwrb(volatile u_int16_t *a, u_int16_t v) 65 { 66 __asm__ volatile("sthbrx %0, 0, %1" :: "r"(v), "r"(a)); 67 __asm__ volatile("eieio; sync"); 68 } 69 70 static __inline void 71 __outlrb(volatile u_int32_t *a, u_int32_t v) 72 { 73 __asm__ volatile("stwbrx %0, 0, %1" :: "r"(v), "r"(a)); 74 __asm__ volatile("eieio; sync"); 75 } 76 77 static __inline u_int8_t 78 __inb(volatile u_int8_t *a) 79 { 80 u_int8_t _v_; 81 82 _v_ = *a; 83 __asm__ volatile("eieio; sync"); 84 return _v_; 85 } 86 87 static __inline u_int16_t 88 __inw(volatile u_int16_t *a) 89 { 90 u_int16_t _v_; 91 92 _v_ = *a; 93 __asm__ volatile("eieio; sync"); 94 return _v_; 95 } 96 97 static __inline u_int32_t 98 __inl(volatile u_int32_t *a) 99 { 100 u_int32_t _v_; 101 102 _v_ = *a; 103 __asm__ volatile("eieio; sync"); 104 return _v_; 105 } 106 107 static __inline u_int16_t 108 __inwrb(volatile u_int16_t *a) 109 { 110 u_int16_t _v_; 111 112 __asm__ volatile("lhbrx %0, 0, %1" : "=r"(_v_) : "r"(a)); 113 __asm__ volatile("eieio; sync"); 114 return _v_; 115 } 116 117 static __inline u_int32_t 118 __inlrb(volatile u_int32_t *a) 119 { 120 u_int32_t _v_; 121 122 __asm__ volatile("lwbrx %0, 0, %1" : "=r"(_v_) : "r"(a)); 123 __asm__ volatile("eieio; sync"); 124 return _v_; 125 } 126 127 #define outb(a,v) (__outb((volatile u_int8_t *)(a), v)) 128 #define out8(a,v) outb(a,v) 129 #define outw(a,v) (__outw((volatile u_int16_t *)(a), v)) 130 #define out16(a,v) outw(a,v) 131 #define outl(a,v) (__outl((volatile u_int32_t *)(a), v)) 132 #define out32(a,v) outl(a,v) 133 #define inb(a) (__inb((volatile u_int8_t *)(a))) 134 #define in8(a) inb(a) 135 #define inw(a) (__inw((volatile u_int16_t *)(a))) 136 #define in16(a) inw(a) 137 #define inl(a) (__inl((volatile u_int32_t *)(a))) 138 #define in32(a) inl(a) 139 140 #define out8rb(a,v) outb(a,v) 141 #define outwrb(a,v) (__outwrb((volatile u_int16_t *)(a), v)) 142 #define out16rb(a,v) outwrb(a,v) 143 #define outlrb(a,v) (__outlrb((volatile u_int32_t *)(a), v)) 144 #define out32rb(a,v) outlrb(a,v) 145 #define in8rb(a) inb(a) 146 #define inwrb(a) (__inwrb((volatile u_int16_t *)(a))) 147 #define in16rb(a) inwrb(a) 148 #define inlrb(a) (__inlrb((volatile u_int32_t *)(a))) 149 #define in32rb(a) inlrb(a) 150 151 152 static __inline void 153 __outsb(volatile u_int8_t *a, const u_int8_t *s, size_t c) 154 { 155 while (c--) 156 *a = *s++; 157 __asm__ volatile("eieio; sync"); 158 } 159 160 static __inline void 161 __outsw(volatile u_int16_t *a, const u_int16_t *s, size_t c) 162 { 163 while (c--) 164 *a = *s++; 165 __asm__ volatile("eieio; sync"); 166 } 167 168 static __inline void 169 __outsl(volatile u_int32_t *a, const u_int32_t *s, size_t c) 170 { 171 while (c--) 172 *a = *s++; 173 __asm__ volatile("eieio; sync"); 174 } 175 176 static __inline void 177 __outswrb(volatile u_int16_t *a, const u_int16_t *s, size_t c) 178 { 179 while (c--) 180 __asm__ volatile("sthbrx %0, 0, %1" :: "r"(*s++), "r"(a)); 181 __asm__ volatile("eieio; sync"); 182 } 183 184 static __inline void 185 __outslrb(volatile u_int32_t *a, const u_int32_t *s, size_t c) 186 { 187 while (c--) 188 __asm__ volatile("stwbrx %0, 0, %1" :: "r"(*s++), "r"(a)); 189 __asm__ volatile("eieio; sync"); 190 } 191 192 static __inline void 193 __insb(volatile u_int8_t *a, u_int8_t *d, size_t c) 194 { 195 while (c--) 196 *d++ = *a; 197 __asm__ volatile("eieio; sync"); 198 } 199 200 static __inline void 201 __insw(volatile u_int16_t *a, u_int16_t *d, size_t c) 202 { 203 while (c--) 204 *d++ = *a; 205 __asm__ volatile("eieio; sync"); 206 } 207 208 static __inline void 209 __insl(volatile u_int32_t *a, u_int32_t *d, size_t c) 210 { 211 while (c--) 212 *d++ = *a; 213 __asm__ volatile("eieio; sync"); 214 } 215 216 static __inline void 217 __inswrb(volatile u_int16_t *a, u_int16_t *d, size_t c) 218 { 219 while (c--) 220 __asm__ volatile("lhbrx %0, 0, %1" : "=r"(*d++) : "r"(a)); 221 __asm__ volatile("eieio; sync"); 222 } 223 224 static __inline void 225 __inslrb(volatile u_int32_t *a, u_int32_t *d, size_t c) 226 { 227 while (c--) 228 __asm__ volatile("lwbrx %0, 0, %1" : "=r"(*d++) : "r"(a)); 229 __asm__ volatile("eieio; sync"); 230 } 231 232 #define outsb(a,s,c) (__outsb((volatile u_int8_t *)(a), s, c)) 233 #define outs8(a,s,c) outsb(a,s,c) 234 #define outsw(a,s,c) (__outsw((volatile u_int16_t *)(a), s, c)) 235 #define outs16(a,s,c) outsw(a,s,c) 236 #define outsl(a,s,c) (__outsl((volatile u_int32_t *)(a), s, c)) 237 #define outs32(a,s,c) outsl(a,s,c) 238 #define insb(a,d,c) (__insb((volatile u_int8_t *)(a), d, c)) 239 #define ins8(a,d,c) insb(a,d,c) 240 #define insw(a,d,c) (__insw((volatile u_int16_t *)(a), d, c)) 241 #define ins16(a,d,c) insw(a,d,c) 242 #define insl(a,d,c) (__insl((volatile u_int32_t *)(a), d, c)) 243 #define ins32(a,d,c) insl(a,d,c) 244 245 #define outs8rb(a,s,c) outsb(a,s,c) 246 #define outswrb(a,s,c) (__outswrb((volatile u_int16_t *)(a), s, c)) 247 #define outs16rb(a,s,c) outswrb(a,s,c) 248 #define outslrb(a,s,c) (__outslrb((volatile u_int32_t *)(a), s, c)) 249 #define outs32rb(a,s,c) outslrb(a,s,c) 250 #define ins8rb(a,d,c) insb(a,d,c) 251 #define inswrb(a,d,c) (__inswrb((volatile u_int16_t *)(a), d, c)) 252 #define ins16rb(a,d,c) inswrb(a,d,c) 253 #define inslrb(a,d,c) (__inslrb((volatile u_int32_t *)(a), d, c)) 254 #define ins32rb(a,d,c) inslrb(a,d,c) 255 256 #endif /*_MACHINE_PIO_H_*/ 257