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1 | /* $XConsortium: AsmMacros.h /main/13 1996/10/25 11:33:12 kaleb $ */ |
2 | /* | |
3 | * (c) Copyright 1993,1994 by David Wexelblat <dwex@xfree86.org> | |
4 | * | |
5 | * Permission is hereby granted, free of charge, to any person obtaining a | |
6 | * copy of this software and associated documentation files (the "Software"), | |
7 | * to deal in the Software without restriction, including without limitation | |
8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
9 | * and/or sell copies of the Software, and to permit persons to whom the | |
10 | * Software is furnished to do so, subject to the following conditions: | |
11 | * | |
12 | * The above copyright notice and this permission notice shall be included in | |
13 | * all copies or substantial portions of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * DAVID WEXELBLAT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
19 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF | |
20 | * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
21 | * SOFTWARE. | |
22 | * | |
23 | * Except as contained in this notice, the name of David Wexelblat shall not be | |
24 | * used in advertising or otherwise to promote the sale, use or other dealings | |
25 | * in this Software without prior written authorization from David Wexelblat. | |
26 | * | |
27 | */ | |
28 | /* | |
29 | * Copyright 1997 | |
30 | * Digital Equipment Corporation. All rights reserved. | |
31 | * This software is furnished under license and may be used and copied only in | |
32 | * accordance with the following terms and conditions. Subject to these | |
33 | * conditions, you may download, copy, install, use, modify and distribute | |
34 | * this software in source and/or binary form. No title or ownership is | |
35 | * transferred hereby. | |
36 | * | |
37 | * 1) Any source code used, modified or distributed must reproduce and retain | |
38 | * this copyright notice and list of conditions as they appear in the source | |
39 | * file. | |
40 | * | |
41 | * 2) No right is granted to use any trade name, trademark, or logo of Digital | |
42 | * Equipment Corporation. Neither the "Digital Equipment Corporation" name | |
43 | * nor any trademark or logo of Digital Equipment Corporation may be used | |
44 | * to endorse or promote products derived from this software without the | |
45 | * prior written permission of Digital Equipment Corporation. | |
46 | * | |
47 | * 3) This software is provided "AS-IS" and any express or implied warranties, | |
48 | * including but not limited to, any implied warranties of merchantability, | |
49 | * fitness for a particular purpose, or non-infringement are disclaimed. In | |
50 | * no event shall DIGITAL be liable for any damages whatsoever, and in | |
51 | * particular, DIGITAL shall not be liable for special, indirect, | |
52 | * consequential, or incidental damages or damages for | |
53 | * lost profits, loss of revenue or loss of use, whether such damages arise | |
54 | * in contract, | |
55 | * negligence, tort, under statute, in equity, at law or otherwise, even if | |
56 | * advised of the possibility of such damage. | |
57 | * | |
58 | */ | |
59 | ||
60 | /* $XFree86: xc/programs/Xserver/hw/xfree86/SuperProbe/AsmMacros.h,v 3.14 1999/09/25 14:36:58 dawes Exp $ */ | |
61 | ||
62 | ||
63 | #if defined(__GNUC__) | |
64 | ||
65 | #if defined(linux) && (defined(__alpha__) || defined(__ia64__)) | |
66 | ||
67 | #include <sys/io.h> | |
68 | ||
69 | #undef inb | |
70 | #undef inw | |
71 | #undef inl | |
72 | #undef outb | |
73 | #undef outw | |
74 | #undef outl | |
75 | ||
76 | static __inline__ unsigned int inb(unsigned long int p) { return _inb(p); }; | |
77 | static __inline__ unsigned int inw(unsigned long int p) { return _inw(p); }; | |
78 | static __inline__ unsigned int inl(unsigned long int p) { return _inl(p); }; | |
79 | static __inline__ void outb(unsigned long int p, unsigned char v) { _outb(v,p); }; | |
80 | static __inline__ void outw(unsigned long int p, unsigned short v) { _outw(v,p); }; | |
81 | static __inline__ void outl(unsigned long int p, unsigned int v) { _outl(v,p); }; | |
82 | ||
83 | #else | |
84 | ||
85 | #if defined(__sparc__) | |
86 | #ifndef ASI_PL | |
87 | #define ASI_PL 0x88 | |
88 | #endif | |
89 | ||
90 | static __inline__ void | |
91 | outb(port, val) | |
92 | unsigned long port; | |
93 | char val; | |
94 | { | |
95 | __asm__ __volatile__("stba %0, [%1] %2" : : "r" (val), "r" (port), "i" (ASI_PL)); | |
96 | } | |
97 | ||
98 | static __inline__ void | |
99 | outw(port, val) | |
100 | unsigned long port; | |
101 | char val; | |
102 | { | |
103 | __asm__ __volatile__("stha %0, [%1] %2" : : "r" (val), "r" (port), "i" (ASI_PL)); | |
104 | } | |
105 | ||
106 | static __inline__ void | |
107 | outl(port, val) | |
108 | unsigned long port; | |
109 | char val; | |
110 | { | |
111 | __asm__ __volatile__("sta %0, [%1] %2" : : "r" (val), "r" (port), "i" (ASI_PL)); | |
112 | } | |
113 | ||
114 | static __inline__ unsigned int | |
115 | inb(port) | |
116 | unsigned long port; | |
117 | { | |
118 | unsigned char ret; | |
119 | __asm__ __volatile__("lduba [%1] %2, %0" : "=r" (ret) : "r" (port), "i" (ASI_PL)); | |
120 | return ret; | |
121 | } | |
122 | ||
123 | static __inline__ unsigned int | |
124 | inw(port) | |
125 | unsigned long port; | |
126 | { | |
127 | unsigned char ret; | |
128 | __asm__ __volatile__("lduha [%1] %2, %0" : "=r" (ret) : "r" (port), "i" (ASI_PL)); | |
129 | return ret; | |
130 | } | |
131 | ||
132 | static __inline__ unsigned int | |
133 | inl(port) | |
134 | unsigned long port; | |
135 | { | |
136 | unsigned char ret; | |
137 | __asm__ __volatile__("lda [%1] %2, %0" : "=r" (ret) : "r" (port), "i" (ASI_PL)); | |
138 | return ret; | |
139 | } | |
140 | #else | |
141 | #ifdef __arm32__ | |
142 | unsigned int IOPortBase; /* Memory mapped I/O port area */ | |
143 | ||
144 | static __inline__ void | |
145 | outb(port, val) | |
146 | short port; | |
147 | char val; | |
148 | { | |
149 | if ((unsigned short)port >= 0x400) return; | |
150 | ||
151 | *(volatile unsigned char*)(((unsigned short)(port))+IOPortBase) = val; | |
152 | } | |
153 | ||
154 | static __inline__ void | |
155 | outw(port, val) | |
156 | short port; | |
157 | short val; | |
158 | { | |
159 | if ((unsigned short)port >= 0x400) return; | |
160 | ||
161 | *(volatile unsigned short*)(((unsigned short)(port))+IOPortBase) = val; | |
162 | } | |
163 | ||
164 | static __inline__ void | |
165 | outl(port, val) | |
166 | short port; | |
167 | int val; | |
168 | { | |
169 | if ((unsigned short)port >= 0x400) return; | |
170 | ||
171 | *(volatile unsigned long*)(((unsigned short)(port))+IOPortBase) = val; | |
172 | } | |
173 | ||
174 | static __inline__ unsigned int | |
175 | inb(port) | |
176 | short port; | |
177 | { | |
178 | if ((unsigned short)port >= 0x400) return((unsigned int)-1); | |
179 | ||
180 | return(*(volatile unsigned char*)(((unsigned short)(port))+IOPortBase)); | |
181 | } | |
182 | ||
183 | static __inline__ unsigned int | |
184 | inw(port) | |
185 | short port; | |
186 | { | |
187 | if ((unsigned short)port >= 0x400) return((unsigned int)-1); | |
188 | ||
189 | return(*(volatile unsigned short*)(((unsigned short)(port))+IOPortBase)); | |
190 | } | |
191 | ||
192 | static __inline__ unsigned int | |
193 | inl(port) | |
194 | short port; | |
195 | { | |
196 | if ((unsigned short)port >= 0x400) return((unsigned int)-1); | |
197 | ||
198 | return(*(volatile unsigned long*)(((unsigned short)(port))+IOPortBase)); | |
199 | } | |
200 | #else /* __arm32__ */ | |
201 | #if defined(Lynx) && defined(__powerpc__) | |
202 | extern unsigned char *ioBase; | |
203 | ||
204 | static volatile void | |
205 | eieio() | |
206 | { | |
207 | __asm__ __volatile__ ("eieio"); | |
208 | } | |
209 | ||
210 | static void | |
211 | outb(port, value) | |
212 | short port; | |
213 | unsigned char value; | |
214 | { | |
215 | *(uchar *)(ioBase + port) = value; eieio(); | |
216 | } | |
217 | ||
218 | static void | |
219 | outw(port, value) | |
220 | short port; | |
221 | unsigned short value; | |
222 | { | |
223 | *(unsigned short *)(ioBase + port) = value; eieio(); | |
224 | } | |
225 | ||
226 | static void | |
227 | outl(port, value) | |
228 | short port; | |
229 | unsigned long value; | |
230 | { | |
231 | *(unsigned long *)(ioBase + port) = value; eieio(); | |
232 | } | |
233 | ||
234 | static unsigned char | |
235 | inb(port) | |
236 | short port; | |
237 | { | |
238 | unsigned char val; | |
239 | ||
240 | val = *((unsigned char *)(ioBase + port)); eieio(); | |
241 | return(val); | |
242 | } | |
243 | ||
244 | static unsigned short | |
245 | inw(port) | |
246 | short port; | |
247 | { | |
248 | unsigned short val; | |
249 | ||
250 | val = *((unsigned short *)(ioBase + port)); eieio(); | |
251 | return(val); | |
252 | } | |
253 | ||
254 | static unsigned long | |
255 | inl(port) | |
256 | short port; | |
257 | { | |
258 | unsigned long val; | |
259 | ||
260 | val = *((unsigned long *)(ioBase + port)); eieio(); | |
261 | return(val); | |
262 | } | |
263 | ||
264 | #else | |
265 | #if defined(__FreeBSD__) && defined(__alpha__) | |
266 | ||
267 | #include <sys/types.h> | |
268 | ||
269 | extern void outb(u_int32_t port, u_int8_t val); | |
270 | extern void outw(u_int32_t port, u_int16_t val); | |
271 | extern void outl(u_int32_t port, u_int32_t val); | |
272 | extern u_int8_t inb(u_int32_t port); | |
273 | extern u_int16_t inw(u_int32_t port); | |
274 | extern u_int32_t inl(u_int32_t port); | |
275 | ||
276 | #else | |
277 | #ifdef GCCUSESGAS | |
278 | static __inline__ void | |
279 | outb(port, val) | |
280 | short port; | |
281 | char val; | |
282 | { | |
283 | __asm__ __volatile__("outb %0,%1" : :"a" (val), "d" (port)); | |
284 | } | |
285 | ||
286 | static __inline__ void | |
287 | outw(port, val) | |
288 | short port; | |
289 | short val; | |
290 | { | |
291 | __asm__ __volatile__("outw %0,%1" : :"a" (val), "d" (port)); | |
292 | } | |
293 | ||
294 | static __inline__ void | |
295 | outl(port, val) | |
296 | short port; | |
297 | unsigned int val; | |
298 | { | |
299 | __asm__ __volatile__("outl %0,%1" : :"a" (val), "d" (port)); | |
300 | } | |
301 | ||
302 | static __inline__ unsigned int | |
303 | inb(port) | |
304 | short port; | |
305 | { | |
306 | unsigned char ret; | |
307 | __asm__ __volatile__("inb %1,%0" : | |
308 | "=a" (ret) : | |
309 | "d" (port)); | |
310 | return ret; | |
311 | } | |
312 | ||
313 | static __inline__ unsigned int | |
314 | inw(port) | |
315 | short port; | |
316 | { | |
317 | unsigned short ret; | |
318 | __asm__ __volatile__("inw %1,%0" : | |
319 | "=a" (ret) : | |
320 | "d" (port)); | |
321 | return ret; | |
322 | } | |
323 | ||
324 | static __inline__ unsigned int | |
325 | inl(port) | |
326 | short port; | |
327 | { | |
328 | unsigned int ret; | |
329 | __asm__ __volatile__("inl %1,%0" : | |
330 | "=a" (ret) : | |
331 | "d" (port)); | |
332 | return ret; | |
333 | } | |
334 | ||
335 | #else /* GCCUSESGAS */ | |
336 | ||
337 | static __inline__ void | |
338 | outb(port, val) | |
339 | short port; | |
340 | char val; | |
341 | { | |
342 | __asm__ __volatile__("out%B0 (%1)" : :"a" (val), "d" (port)); | |
343 | } | |
344 | ||
345 | static __inline__ void | |
346 | outw(port, val) | |
347 | short port; | |
348 | short val; | |
349 | { | |
350 | __asm__ __volatile__("out%W0 (%1)" : :"a" (val), "d" (port)); | |
351 | } | |
352 | ||
353 | static __inline__ void | |
354 | outl(port, val) | |
355 | short port; | |
356 | unsigned int val; | |
357 | { | |
358 | __asm__ __volatile__("out%L0 (%1)" : :"a" (val), "d" (port)); | |
359 | } | |
360 | ||
361 | static __inline__ unsigned int | |
362 | inb(port) | |
363 | short port; | |
364 | { | |
365 | unsigned int ret; | |
366 | __asm__ __volatile__("in%B0 (%1)" : | |
367 | "=a" (ret) : | |
368 | "d" (port)); | |
369 | return ret; | |
370 | } | |
371 | ||
372 | static __inline__ unsigned int | |
373 | inw(port) | |
374 | short port; | |
375 | { | |
376 | unsigned int ret; | |
377 | __asm__ __volatile__("in%W0 (%1)" : | |
378 | "=a" (ret) : | |
379 | "d" (port)); | |
380 | return ret; | |
381 | } | |
382 | ||
383 | static __inline__ unsigned int | |
384 | inl(port) | |
385 | short port; | |
386 | { | |
387 | unsigned int ret; | |
388 | __asm__ __volatile__("in%L0 (%1)" : | |
389 | "=a" (ret) : | |
390 | "d" (port)); | |
391 | return ret; | |
392 | } | |
393 | ||
394 | #endif /* GCCUSESGAS */ | |
395 | #endif /* Lynx && __powerpc__ */ | |
396 | #endif /* arm32 */ | |
397 | #endif /* linux && __sparc__ */ | |
398 | #endif /* linux && __alpha__ */ | |
399 | #endif /* __FreeBSD__ && __alpha__ */ | |
400 | ||
401 | #if defined(linux) || defined(__arm32__) || (defined(Lynx) && defined(__powerpc__)) | |
402 | ||
403 | #define intr_disable() | |
404 | #define intr_enable() | |
405 | ||
406 | #else | |
407 | ||
408 | static __inline__ void | |
409 | intr_disable() | |
410 | { | |
411 | __asm__ __volatile__("cli"); | |
412 | } | |
413 | ||
414 | static __inline__ void | |
415 | intr_enable() | |
416 | { | |
417 | __asm__ __volatile__("sti"); | |
418 | } | |
419 | ||
420 | #endif /* else !linux && !__arm32__ */ | |
421 | ||
422 | #else /* __GNUC__ */ | |
423 | ||
424 | #if defined(_MINIX) && defined(_ACK) | |
425 | ||
426 | /* inb, outb, inw and outw are defined in the library */ | |
427 | /* ... but I've no idea if the same is true for inl & outl */ | |
428 | ||
429 | u8_t inb(U16_t); | |
430 | void outb(U16_t, U8_t); | |
431 | u16_t inw(U16_t); | |
432 | void outw(U16_t, U16_t); | |
433 | u32_t inl(U16_t); | |
434 | void outl(U16_t, U32_t); | |
435 | ||
436 | #else /* not _MINIX and _ACK */ | |
437 | ||
438 | # if defined(__STDC__) && (__STDC__ == 1) | |
439 | # ifndef NCR | |
440 | # define asm __asm | |
441 | # endif | |
442 | # endif | |
443 | # ifdef SVR4 | |
444 | # include <sys/types.h> | |
445 | # ifndef __USLC__ | |
446 | # define __USLC__ | |
447 | # endif | |
448 | # endif | |
449 | #ifndef SCO325 | |
450 | # include <sys/inline.h> | |
451 | #else | |
452 | # include "../common/scoasm.h" | |
453 | #endif | |
454 | #define intr_disable() asm("cli") | |
455 | #define intr_enable() asm("sti") | |
456 | ||
457 | #endif /* _MINIX and _ACK */ | |
458 | #endif /* __GNUC__ */ |