Annotation of sys/arch/powerpc/include/pio.h, Revision 1.1.1.1
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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