Annotation of sys/arch/powerpc/include/pio.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: pio.h,v 1.9 2002/09/15 09:01:59 deraadt Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1997 Per Fogelstrom, Opsycon AB and RTMX Inc, USA.
! 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: * 3. All advertising materials mentioning features or use of this software
! 15: * must display the following acknowledgement:
! 16: * This product includes software developed under OpenBSD by
! 17: * Per Fogelstrom Opsycon AB for RTMX Inc, North Carolina, USA.
! 18: * 4. The name of the author may not be used to endorse or promote products
! 19: * derived from this software without specific prior written permission.
! 20: *
! 21: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
! 22: * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
! 23: * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 24: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
! 25: * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 31: * SUCH DAMAGE.
! 32: *
! 33: */
! 34:
! 35: #ifndef _POWERPC_PIO_H_
! 36: #define _POWERPC_PIO_H_
! 37: /*
! 38: * I/O macros.
! 39: */
! 40: void *mapiodev(paddr_t pa, psize_t len);
! 41: void unmapiodev(void * va, psize_t len);
! 42:
! 43: static __inline void
! 44: __outb(volatile u_int8_t *a, int v)
! 45: {
! 46: *a = v;
! 47: __asm__ volatile("eieio");
! 48: }
! 49:
! 50: static __inline void
! 51: __outw(volatile u_int16_t *a, u_int16_t v)
! 52: {
! 53: *a = v;
! 54: __asm__ volatile("eieio");
! 55: }
! 56:
! 57: static __inline void
! 58: __outl(volatile u_int32_t *a, int v)
! 59: {
! 60: *a = v;
! 61: __asm__ volatile("eieio");
! 62: }
! 63:
! 64: static __inline void
! 65: __outwrb(volatile u_int16_t *a, u_int16_t v)
! 66: {
! 67: u_int32_t _p_ = (u_int32_t)a;
! 68:
! 69: __asm__ volatile("sthbrx %0, 0, %1" :: "r"(v), "r"(_p_));
! 70: __asm__ volatile("eieio");
! 71: }
! 72:
! 73: static __inline void
! 74: __outlrb(volatile u_int32_t *a, u_int32_t v)
! 75: {
! 76: u_int32_t _p_ = (u_int32_t)a;
! 77:
! 78: __asm__ volatile("stwbrx %0, 0, %1" :: "r"(v), "r"(_p_));
! 79: __asm__ volatile("eieio");
! 80: }
! 81:
! 82: static __inline u_int8_t
! 83: __inb(volatile u_int8_t *a)
! 84: {
! 85: u_int8_t _v_;
! 86:
! 87: __asm__ volatile("eieio");
! 88: _v_ = *a;
! 89: return _v_;
! 90: }
! 91:
! 92: static __inline u_int16_t
! 93: __inw(volatile u_int16_t *a)
! 94: {
! 95: u_int16_t _v_;
! 96:
! 97: __asm__ volatile("eieio");
! 98: _v_ = *a;
! 99: return _v_;
! 100: }
! 101:
! 102: static __inline u_int32_t
! 103: __inl(volatile u_int32_t *a)
! 104: {
! 105: u_int32_t _v_;
! 106:
! 107: __asm__ volatile("eieio");
! 108: _v_ = *a;
! 109: return _v_;
! 110: }
! 111:
! 112: static __inline u_int16_t
! 113: __inwrb(volatile u_int16_t *a)
! 114: {
! 115: u_int16_t _v_;
! 116: u_int32_t _p_ = (u_int32_t)a;
! 117:
! 118: __asm__ volatile("eieio");
! 119: __asm__ volatile("lhbrx %0, 0, %1" : "=r"(_v_) : "r"(_p_));
! 120: return _v_;
! 121: }
! 122:
! 123: static __inline u_int32_t
! 124: __inlrb(volatile u_int32_t *a)
! 125: {
! 126: u_int32_t _v_;
! 127: u_int32_t _p_ = (u_int32_t)a;
! 128:
! 129: __asm__ volatile("eieio");
! 130: __asm__ volatile("lwbrx %0, 0, %1" : "=r"(_v_) : "r"(_p_));
! 131: return _v_;
! 132: }
! 133:
! 134:
! 135: #define outb(a,v) (__outb((volatile u_int8_t *)(a), v))
! 136: #define out8(a,v) outb(a,v)
! 137: #define outw(a,v) (__outw((volatile u_int16_t *)(a), v))
! 138: #define out16(a,v) outw(a,v)
! 139: #define outl(a,v) (__outl((volatile u_int32_t *)(a), v))
! 140: #define out32(a,v) outl(a,v)
! 141: #define inb(a) (__inb((volatile u_int8_t *)(a)))
! 142: #define in8(a) inb(a)
! 143: #define inw(a) (__inw((volatile u_int16_t *)(a)))
! 144: #define in16(a) inw(a)
! 145: #define inl(a) (__inl((volatile u_int32_t *)(a)))
! 146: #define in32(a) inl(a)
! 147:
! 148: #define out8rb(a,v) outb(a,v)
! 149: #define outwrb(a,v) (__outwrb((volatile u_int16_t *)(a), v))
! 150: #define out16rb(a,v) outwrb(a,v)
! 151: #define outlrb(a,v) (__outlrb((volatile u_int32_t *)(a), v))
! 152: #define out32rb(a,v) outlrb(a,v)
! 153: #define in8rb(a) inb(a)
! 154: #define inwrb(a) (__inwrb((volatile u_int16_t *)(a)))
! 155: #define in16rb(a) inwrb(a)
! 156: #define inlrb(a) (__inlrb((volatile u_int32_t *)(a)))
! 157: #define in32rb(a) inlrb(a)
! 158:
! 159: #ifdef DEBUG_SPEC
! 160: static __inline void
! 161: __flash_led(bits, count)
! 162: int bits;
! 163: {
! 164: int i, v = 0;
! 165:
! 166: if(bits == 0) {
! 167: v = 1; bits = 3;
! 168: }
! 169: bits &= 3;
! 170: count += count;
! 171: v |= (*(volatile u_int8_t *)(MPC106_V_ISA_IO_SPACE + 0x01f4)) & ~3;
! 172: while(count--) {
! 173: v ^= bits;
! 174: for(i = 100000; i > 0; i--)
! 175: *(volatile u_int8_t *)(MPC106_V_ISA_IO_SPACE + 0x01f4) = v;
! 176: }
! 177: *(u_int8_t *)(MPC106_V_ISA_IO_SPACE + 0x01f4) &= ~3;
! 178: }
! 179: #endif /* DEBUG */
! 180:
! 181: #endif /*_POWERPC_PIO_H_*/
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