pio.h revision 1.7
1 /* $NetBSD: pio.h,v 1.7 2012/01/30 23:34:58 matt Exp $ */ 2 /* $OpenBSD: pio.h,v 1.1 1997/10/13 10:53:47 pefo Exp $ */ 3 4 /* 5 * Copyright (c) 1997 Per Fogelstrom, Opsycon AB and RTMX Inc, USA. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed under OpenBSD by 18 * Per Fogelstrom Opsycon AB for RTMX Inc, North Carolina, USA. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS 23 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 26 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 */ 35 36 #ifndef _POWERPC_PIO_H_ 37 #define _POWERPC_PIO_H_ 38 /* 39 * I/O macros. 40 */ 41 42 static __inline void __outb(volatile uint8_t *a, uint8_t v); 43 static __inline void __outw(volatile uint16_t *a, uint16_t v); 44 static __inline void __outl(volatile uint32_t *a, uint32_t v); 45 static __inline void __outwrb(volatile uint16_t *a, uint16_t v); 46 static __inline void __outlrb(volatile uint32_t *a, uint32_t v); 47 static __inline uint8_t __inb(volatile uint8_t *a); 48 static __inline uint16_t __inw(volatile uint16_t *a); 49 static __inline uint32_t __inl(volatile uint32_t *a); 50 static __inline uint16_t __inwrb(volatile uint16_t *a); 51 static __inline uint32_t __inlrb(volatile uint32_t *a); 52 static __inline void __outsb(volatile uint8_t *, const uint8_t *, size_t); 53 static __inline void __outsw(volatile uint16_t *, const uint16_t *, size_t); 54 static __inline void __outsl(volatile uint32_t *, const uint32_t *, size_t); 55 static __inline void __outswrb(volatile uint16_t *, const uint16_t *, size_t); 56 static __inline void __outslrb(volatile uint32_t *, const uint32_t *, size_t); 57 static __inline void __insb(volatile uint8_t *, uint8_t *, size_t); 58 static __inline void __insw(volatile uint16_t *, uint16_t *, size_t); 59 static __inline void __insl(volatile uint32_t *, uint32_t *, size_t); 60 static __inline void __inswrb(volatile uint16_t *, uint16_t *, size_t); 61 static __inline void __inslrb(volatile uint32_t *, uint32_t *, size_t); 62 63 static __inline void 64 __outb(volatile uint8_t *a, uint8_t v) 65 { 66 *a = v; 67 __asm volatile("eieio; sync"); 68 } 69 70 static __inline void 71 __outw(volatile uint16_t *a, uint16_t v) 72 { 73 *a = v; 74 __asm volatile("eieio; sync"); 75 } 76 77 static __inline void 78 __outl(volatile uint32_t *a, uint32_t v) 79 { 80 *a = v; 81 __asm volatile("eieio; sync"); 82 } 83 84 static __inline void 85 __outwrb(volatile uint16_t *a, uint16_t v) 86 { 87 __asm volatile("sthbrx %0, 0, %1" :: "r"(v), "r"(a)); 88 __asm volatile("eieio; sync"); 89 } 90 91 static __inline void 92 __outlrb(volatile uint32_t *a, uint32_t v) 93 { 94 __asm volatile("stwbrx %0, 0, %1" :: "r"(v), "r"(a)); 95 __asm volatile("eieio; sync"); 96 } 97 98 static __inline uint8_t 99 __inb(volatile uint8_t *a) 100 { 101 uint8_t _v_; 102 103 _v_ = *a; 104 __asm volatile("eieio; sync"); 105 return _v_; 106 } 107 108 static __inline uint16_t 109 __inw(volatile uint16_t *a) 110 { 111 uint16_t _v_; 112 113 _v_ = *a; 114 __asm volatile("eieio; sync"); 115 return _v_; 116 } 117 118 static __inline uint32_t 119 __inl(volatile uint32_t *a) 120 { 121 uint32_t _v_; 122 123 _v_ = *a; 124 __asm volatile("eieio; sync"); 125 return _v_; 126 } 127 128 static __inline uint16_t 129 __inwrb(volatile uint16_t *a) 130 { 131 uint16_t _v_; 132 133 __asm volatile("lhbrx %0, 0, %1" : "=r"(_v_) : "r"(a)); 134 __asm volatile("eieio; sync"); 135 return _v_; 136 } 137 138 static __inline uint32_t 139 __inlrb(volatile uint32_t *a) 140 { 141 uint32_t _v_; 142 143 __asm volatile("lwbrx %0, 0, %1" : "=r"(_v_) : "r"(a)); 144 __asm volatile("eieio; sync"); 145 return _v_; 146 } 147 148 #define outb(a,v) (__outb((volatile uint8_t *)(a), v)) 149 #define out8(a,v) outb(a,v) 150 #define outw(a,v) (__outw((volatile uint16_t *)(a), v)) 151 #define out16(a,v) outw(a,v) 152 #define outl(a,v) (__outl((volatile uint32_t *)(a), v)) 153 #define out32(a,v) outl(a,v) 154 #define inb(a) (__inb((volatile uint8_t *)(a))) 155 #define in8(a) inb(a) 156 #define inw(a) (__inw((volatile uint16_t *)(a))) 157 #define in16(a) inw(a) 158 #define inl(a) (__inl((volatile uint32_t *)(a))) 159 #define in32(a) inl(a) 160 161 #define out8rb(a,v) outb(a,v) 162 #define outwrb(a,v) (__outwrb((volatile uint16_t *)(a), v)) 163 #define out16rb(a,v) outwrb(a,v) 164 #define outlrb(a,v) (__outlrb((volatile uint32_t *)(a), v)) 165 #define out32rb(a,v) outlrb(a,v) 166 #define in8rb(a) inb(a) 167 #define inwrb(a) (__inwrb((volatile uint16_t *)(a))) 168 #define in16rb(a) inwrb(a) 169 #define inlrb(a) (__inlrb((volatile uint32_t *)(a))) 170 #define in32rb(a) inlrb(a) 171 172 173 static __inline void 174 __outsb(volatile uint8_t *a, const uint8_t *s, size_t c) 175 { 176 while (c--) 177 *a = *s++; 178 __asm volatile("eieio; sync"); 179 } 180 181 static __inline void 182 __outsw(volatile uint16_t *a, const uint16_t *s, size_t c) 183 { 184 while (c--) 185 *a = *s++; 186 __asm volatile("eieio; sync"); 187 } 188 189 static __inline void 190 __outsl(volatile uint32_t *a, const uint32_t *s, size_t c) 191 { 192 while (c--) 193 *a = *s++; 194 __asm volatile("eieio; sync"); 195 } 196 197 static __inline void 198 __outswrb(volatile uint16_t *a, const uint16_t *s, size_t c) 199 { 200 while (c--) 201 __asm volatile("sthbrx %0, 0, %1" :: "r"(*s++), "r"(a)); 202 __asm volatile("eieio; sync"); 203 } 204 205 static __inline void 206 __outslrb(volatile uint32_t *a, const uint32_t *s, size_t c) 207 { 208 while (c--) 209 __asm volatile("stwbrx %0, 0, %1" :: "r"(*s++), "r"(a)); 210 __asm volatile("eieio; sync"); 211 } 212 213 static __inline void 214 __insb(volatile uint8_t *a, uint8_t *d, size_t c) 215 { 216 while (c--) 217 *d++ = *a; 218 __asm volatile("eieio; sync"); 219 } 220 221 static __inline void 222 __insw(volatile uint16_t *a, uint16_t *d, size_t c) 223 { 224 while (c--) 225 *d++ = *a; 226 __asm volatile("eieio; sync"); 227 } 228 229 static __inline void 230 __insl(volatile uint32_t *a, uint32_t *d, size_t c) 231 { 232 while (c--) 233 *d++ = *a; 234 __asm volatile("eieio; sync"); 235 } 236 237 static __inline void 238 __inswrb(volatile uint16_t *a, uint16_t *d, size_t c) 239 { 240 while (c--) 241 __asm volatile("lhbrx %0, 0, %1" : "=r"(*d++) : "r"(a)); 242 __asm volatile("eieio; sync"); 243 } 244 245 static __inline void 246 __inslrb(volatile uint32_t *a, uint32_t *d, size_t c) 247 { 248 while (c--) 249 __asm volatile("lwbrx %0, 0, %1" : "=r"(*d++) : "r"(a)); 250 __asm volatile("eieio; sync"); 251 } 252 253 #define outsb(a,s,c) (__outsb((volatile uint8_t *)(a), s, c)) 254 #define outs8(a,s,c) outsb(a,s,c) 255 #define outsw(a,s,c) (__outsw((volatile uint16_t *)(a), s, c)) 256 #define outs16(a,s,c) outsw(a,s,c) 257 #define outsl(a,s,c) (__outsl((volatile uint32_t *)(a), s, c)) 258 #define outs32(a,s,c) outsl(a,s,c) 259 #define insb(a,d,c) (__insb((volatile uint8_t *)(a), d, c)) 260 #define ins8(a,d,c) insb(a,d,c) 261 #define insw(a,d,c) (__insw((volatile uint16_t *)(a), d, c)) 262 #define ins16(a,d,c) insw(a,d,c) 263 #define insl(a,d,c) (__insl((volatile uint32_t *)(a), d, c)) 264 #define ins32(a,d,c) insl(a,d,c) 265 266 #define outs8rb(a,s,c) outsb(a,s,c) 267 #define outswrb(a,s,c) (__outswrb((volatile uint16_t *)(a), s, c)) 268 #define outs16rb(a,s,c) outswrb(a,s,c) 269 #define outslrb(a,s,c) (__outslrb((volatile uint32_t *)(a), s, c)) 270 #define outs32rb(a,s,c) outslrb(a,s,c) 271 #define ins8rb(a,d,c) insb(a,d,c) 272 #define inswrb(a,d,c) (__inswrb((volatile uint16_t *)(a), d, c)) 273 #define ins16rb(a,d,c) inswrb(a,d,c) 274 #define inslrb(a,d,c) (__inslrb((volatile uint32_t *)(a), d, c)) 275 #define ins32rb(a,d,c) inslrb(a,d,c) 276 277 #endif /*_POWERPC_PIO_H_*/ 278
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