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/*
43 * Use sync so that bus space operations cannot sneak out the bottom of
44 * mutex-protected sections (mutex release does not guarantee completion of
45 * accesses to caching-inhibited memory on some systems)
46 */
47#define powerpc_iomb() __asm __volatile("sync" : : : "memory")
48
49static __inline void
50__outb(volatile u_int8_t *a, u_int8_t v)
51{
52	*a = v;
53	powerpc_iomb();
54}
55
56static __inline void
57__outw(volatile u_int16_t *a, u_int16_t v)
58{
59	*a = v;
60	powerpc_iomb();
61}
62
63static __inline void
64__outl(volatile u_int32_t *a, u_int32_t v)
65{
66	*a = v;
67	powerpc_iomb();
68}
69
70static __inline void
71__outll(volatile u_int64_t *a, u_int64_t v)
72{
73	*a = v;
74	powerpc_iomb();
75}
76
77static __inline void
78__outwrb(volatile u_int16_t *a, u_int16_t v)
79{
80	__asm__ volatile("sthbrx %0, 0, %1" :: "r"(v), "r"(a));
81	powerpc_iomb();
82}
83
84static __inline void
85__outlrb(volatile u_int32_t *a, u_int32_t v)
86{
87	__asm__ volatile("stwbrx %0, 0, %1" :: "r"(v), "r"(a));
88	powerpc_iomb();
89}
90
91static __inline u_int8_t
92__inb(volatile u_int8_t *a)
93{
94	u_int8_t _v_;
95
96	_v_ = *a;
97	powerpc_iomb();
98	return _v_;
99}
100
101static __inline u_int16_t
102__inw(volatile u_int16_t *a)
103{
104	u_int16_t _v_;
105
106	_v_ = *a;
107	powerpc_iomb();
108	return _v_;
109}
110
111static __inline u_int32_t
112__inl(volatile u_int32_t *a)
113{
114	u_int32_t _v_;
115
116	_v_ = *a;
117	powerpc_iomb();
118	return _v_;
119}
120
121static __inline u_int64_t
122__inll(volatile u_int64_t *a)
123{
124	u_int64_t _v_;
125
126	_v_ = *a;
127	powerpc_iomb();
128	return _v_;
129}
130
131static __inline u_int16_t
132__inwrb(volatile u_int16_t *a)
133{
134	u_int16_t _v_;
135
136	__asm__ volatile("lhbrx %0, 0, %1" : "=r"(_v_) : "r"(a));
137	powerpc_iomb();
138	return _v_;
139}
140
141static __inline u_int32_t
142__inlrb(volatile u_int32_t *a)
143{
144	u_int32_t _v_;
145
146	__asm__ volatile("lwbrx %0, 0, %1" : "=r"(_v_) : "r"(a));
147	powerpc_iomb();
148	return _v_;
149}
150
151#define	outb(a,v)	(__outb((volatile u_int8_t *)(a), v))
152#define	out8(a,v)	outb(a,v)
153#define	outw(a,v)	(__outw((volatile u_int16_t *)(a), v))
154#define	out16(a,v)	outw(a,v)
155#define	outl(a,v)	(__outl((volatile u_int32_t *)(a), v))
156#define	out32(a,v)	outl(a,v)
157#define	outll(a,v)	(__outll((volatile u_int64_t *)(a), v))
158#define	out64(a,v)	outll(a,v)
159#define	inb(a)		(__inb((volatile u_int8_t *)(a)))
160#define	in8(a)		inb(a)
161#define	inw(a)		(__inw((volatile u_int16_t *)(a)))
162#define	in16(a)		inw(a)
163#define	inl(a)		(__inl((volatile u_int32_t *)(a)))
164#define	in32(a)		inl(a)
165#define	inll(a)		(__inll((volatile u_int64_t *)(a)))
166#define	in64(a)		inll(a)
167
168#define	out8rb(a,v)	outb(a,v)
169#define	outwrb(a,v)	(__outwrb((volatile u_int16_t *)(a), v))
170#define	out16rb(a,v)	outwrb(a,v)
171#define	outlrb(a,v)	(__outlrb((volatile u_int32_t *)(a), v))
172#define	out32rb(a,v)	outlrb(a,v)
173#define	in8rb(a)	inb(a)
174#define	inwrb(a)	(__inwrb((volatile u_int16_t *)(a)))
175#define	in16rb(a)	inwrb(a)
176#define	inlrb(a)	(__inlrb((volatile u_int32_t *)(a)))
177#define	in32rb(a)	inlrb(a)
178
179
180static __inline void
181__outsb(volatile u_int8_t *a, const u_int8_t *s, size_t c)
182{
183	while (c--)
184		*a = *s++;
185	powerpc_iomb();
186}
187
188static __inline void
189__outsw(volatile u_int16_t *a, const u_int16_t *s, size_t c)
190{
191	while (c--)
192		*a = *s++;
193	powerpc_iomb();
194}
195
196static __inline void
197__outsl(volatile u_int32_t *a, const u_int32_t *s, size_t c)
198{
199	while (c--)
200		*a = *s++;
201	powerpc_iomb();
202}
203
204static __inline void
205__outsll(volatile u_int64_t *a, const u_int64_t *s, size_t c)
206{
207	while (c--)
208		*a = *s++;
209	powerpc_iomb();
210}
211
212static __inline void
213__outswrb(volatile u_int16_t *a, const u_int16_t *s, size_t c)
214{
215	while (c--)
216		__asm__ volatile("sthbrx %0, 0, %1" :: "r"(*s++), "r"(a));
217	powerpc_iomb();
218}
219
220static __inline void
221__outslrb(volatile u_int32_t *a, const u_int32_t *s, size_t c)
222{
223	while (c--)
224		__asm__ volatile("stwbrx %0, 0, %1" :: "r"(*s++), "r"(a));
225	powerpc_iomb();
226}
227
228static __inline void
229__insb(volatile u_int8_t *a, u_int8_t *d, size_t c)
230{
231	while (c--)
232		*d++ = *a;
233	powerpc_iomb();
234}
235
236static __inline void
237__insw(volatile u_int16_t *a, u_int16_t *d, size_t c)
238{
239	while (c--)
240		*d++ = *a;
241	powerpc_iomb();
242}
243
244static __inline void
245__insl(volatile u_int32_t *a, u_int32_t *d, size_t c)
246{
247	while (c--)
248		*d++ = *a;
249	powerpc_iomb();
250}
251
252static __inline void
253__insll(volatile u_int64_t *a, u_int64_t *d, size_t c)
254{
255	while (c--)
256		*d++ = *a;
257	powerpc_iomb();
258}
259
260static __inline void
261__inswrb(volatile u_int16_t *a, u_int16_t *d, size_t c)
262{
263	while (c--)
264		__asm__ volatile("lhbrx %0, 0, %1" : "=r"(*d++) : "r"(a));
265	powerpc_iomb();
266}
267
268static __inline void
269__inslrb(volatile u_int32_t *a, u_int32_t *d, size_t c)
270{
271	while (c--)
272		__asm__ volatile("lwbrx %0, 0, %1" : "=r"(*d++) : "r"(a));
273	powerpc_iomb();
274}
275
276#define	outsb(a,s,c)	(__outsb((volatile u_int8_t *)(a), s, c))
277#define	outs8(a,s,c)	outsb(a,s,c)
278#define	outsw(a,s,c)	(__outsw((volatile u_int16_t *)(a), s, c))
279#define	outs16(a,s,c)	outsw(a,s,c)
280#define	outsl(a,s,c)	(__outsl((volatile u_int32_t *)(a), s, c))
281#define	outs32(a,s,c)	outsl(a,s,c)
282#define	outsll(a,s,c)	(__outsll((volatile u_int64_t *)(a), s, c))
283#define	outs64(a,s,c)	outsll(a,s,c)
284#define	insb(a,d,c)	(__insb((volatile u_int8_t *)(a), d, c))
285#define	ins8(a,d,c)	insb(a,d,c)
286#define	insw(a,d,c)	(__insw((volatile u_int16_t *)(a), d, c))
287#define	ins16(a,d,c)	insw(a,d,c)
288#define	insl(a,d,c)	(__insl((volatile u_int32_t *)(a), d, c))
289#define	ins32(a,d,c)	insl(a,d,c)
290#define	insll(a,d,c)	(__insll((volatile u_int64_t *)(a), d, c))
291#define	ins64(a,d,c)	insll(a,d,c)
292
293#define	outs8rb(a,s,c)	outsb(a,s,c)
294#define	outswrb(a,s,c)	(__outswrb((volatile u_int16_t *)(a), s, c))
295#define	outs16rb(a,s,c)	outswrb(a,s,c)
296#define	outslrb(a,s,c)	(__outslrb((volatile u_int32_t *)(a), s, c))
297#define	outs32rb(a,s,c)	outslrb(a,s,c)
298#define	ins8rb(a,d,c)	insb(a,d,c)
299#define	inswrb(a,d,c)	(__inswrb((volatile u_int16_t *)(a), d, c))
300#define	ins16rb(a,d,c)	inswrb(a,d,c)
301#define	inslrb(a,d,c)	(__inslrb((volatile u_int32_t *)(a), d, c))
302#define	ins32rb(a,d,c)	inslrb(a,d,c)
303
304#endif /*_MACHINE_PIO_H_*/
305