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AsmMacros.h

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00001 /* $XConsortium: AsmMacros.h /main/13 1996/10/25 11:33:12 kaleb $ */
00002 /*
00003  * (c) Copyright 1993,1994 by David Wexelblat <dwex@xfree86.org>
00004  *
00005  * Permission is hereby granted, free of charge, to any person obtaining a 
00006  * copy of this software and associated documentation files (the "Software"), 
00007  * to deal in the Software without restriction, including without limitation 
00008  * the rights to use, copy, modify, merge, publish, distribute, sublicense, 
00009  * and/or sell copies of the Software, and to permit persons to whom the 
00010  * Software is furnished to do so, subject to the following conditions:
00011  *
00012  * The above copyright notice and this permission notice shall be included in
00013  * all copies or substantial portions of the Software.
00014  * 
00015  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00016  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00017  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL 
00018  * DAVID WEXELBLAT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
00019  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF 
00020  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 
00021  * SOFTWARE.
00022  * 
00023  * Except as contained in this notice, the name of David Wexelblat shall not be
00024  * used in advertising or otherwise to promote the sale, use or other dealings
00025  * in this Software without prior written authorization from David Wexelblat.
00026  *
00027  */
00028 /*
00029  * Copyright 1997
00030  * Digital Equipment Corporation. All rights reserved.
00031  * This software is furnished under license and may be used and copied only in 
00032  * accordance with the following terms and conditions.  Subject to these 
00033  * conditions, you may download, copy, install, use, modify and distribute 
00034  * this software in source and/or binary form. No title or ownership is 
00035  * transferred hereby.
00036  *
00037  * 1) Any source code used, modified or distributed must reproduce and retain 
00038  *    this copyright notice and list of conditions as they appear in the source
00039  *    file.
00040  *
00041  * 2) No right is granted to use any trade name, trademark, or logo of Digital 
00042  *    Equipment Corporation. Neither the "Digital Equipment Corporation" name 
00043  *    nor any trademark or logo of Digital Equipment Corporation may be used 
00044  *    to endorse or promote products derived from this software without the 
00045  *    prior written permission of Digital Equipment Corporation.
00046  *
00047  * 3) This software is provided "AS-IS" and any express or implied warranties, 
00048  *    including but not limited to, any implied warranties of merchantability, 
00049  *    fitness for a particular purpose, or non-infringement are disclaimed. In 
00050  *    no event shall DIGITAL be liable for any damages whatsoever, and in 
00051  *    particular, DIGITAL shall not be liable for special, indirect, 
00052  *    consequential, or incidental damages or damages for 
00053  *    lost profits, loss of revenue or loss of use, whether such damages arise 
00054  *    in contract, 
00055  *    negligence, tort, under statute, in equity, at law or otherwise, even if 
00056  *    advised of the possibility of such damage. 
00057  *
00058  */
00059 
00060 /* $XFree86: xc/programs/Xserver/hw/xfree86/SuperProbe/AsmMacros.h,v 3.14 1999/09/25 14:36:58 dawes Exp $ */
00061 
00062 
00063 #if defined(__GNUC__)
00064 
00065 #if defined(linux) && (defined(__alpha__) || defined(__ia64__))
00066 
00067 #include <sys/io.h>
00068 
00069 #undef inb
00070 #undef inw
00071 #undef inl
00072 #undef outb
00073 #undef outw
00074 #undef outl
00075 
00076 static __inline__ unsigned int inb(unsigned long int p) { return _inb(p); };
00077 static __inline__ unsigned int inw(unsigned long int p) { return _inw(p); };
00078 static __inline__ unsigned int inl(unsigned long int p) { return _inl(p); };
00079 static __inline__ void outb(unsigned long int p, unsigned char v) { _outb(v,p); };
00080 static __inline__ void outw(unsigned long int p, unsigned short v) { _outw(v,p); };
00081 static __inline__ void outl(unsigned long int p, unsigned int v) { _outl(v,p); };
00082 
00083 #else
00084 
00085 #if defined(__sparc__)
00086 #ifndef ASI_PL
00087 #define ASI_PL 0x88
00088 #endif
00089 
00090 static __inline__ void
00091 outb(port, val)
00092 unsigned long port;
00093 char val;
00094 {
00095   __asm__ __volatile__("stba %0, [%1] %2" : : "r" (val), "r" (port), "i" (ASI_PL));
00096 }
00097 
00098 static __inline__ void
00099 outw(port, val)
00100 unsigned long port;
00101 char val;
00102 {
00103   __asm__ __volatile__("stha %0, [%1] %2" : : "r" (val), "r" (port), "i" (ASI_PL));
00104 }
00105 
00106 static __inline__ void
00107 outl(port, val)
00108 unsigned long port;
00109 char val;
00110 {
00111   __asm__ __volatile__("sta %0, [%1] %2" : : "r" (val), "r" (port), "i" (ASI_PL));
00112 }
00113 
00114 static __inline__ unsigned int
00115 inb(port)
00116 unsigned long port;
00117 {
00118    unsigned char ret;
00119    __asm__ __volatile__("lduba [%1] %2, %0" : "=r" (ret) : "r" (port), "i" (ASI_PL));
00120    return ret;
00121 }
00122 
00123 static __inline__ unsigned int
00124 inw(port)
00125 unsigned long port;
00126 {
00127    unsigned char ret;
00128    __asm__ __volatile__("lduha [%1] %2, %0" : "=r" (ret) : "r" (port), "i" (ASI_PL));
00129    return ret;
00130 }
00131 
00132 static __inline__ unsigned int
00133 inl(port)
00134 unsigned long port;
00135 {
00136    unsigned char ret;
00137    __asm__ __volatile__("lda [%1] %2, %0" : "=r" (ret) : "r" (port), "i" (ASI_PL));
00138    return ret;
00139 }
00140 #else
00141 #ifdef __arm32__
00142 unsigned int IOPortBase;  /* Memory mapped I/O port area */
00143 
00144 static __inline__ void
00145 outb(port, val)
00146      short port;
00147      char val;
00148 {
00149          if ((unsigned short)port >= 0x400) return;
00150 
00151         *(volatile unsigned char*)(((unsigned short)(port))+IOPortBase) = val;
00152 }
00153 
00154 static __inline__ void
00155 outw(port, val)
00156      short port;
00157      short val;
00158 {
00159          if ((unsigned short)port >= 0x400) return;
00160 
00161         *(volatile unsigned short*)(((unsigned short)(port))+IOPortBase) = val;
00162 }
00163 
00164 static __inline__ void
00165 outl(port, val)
00166      short port;
00167      int val;
00168 {
00169          if ((unsigned short)port >= 0x400) return;
00170 
00171         *(volatile unsigned long*)(((unsigned short)(port))+IOPortBase) = val;
00172 }
00173 
00174 static __inline__ unsigned int
00175 inb(port)
00176      short port;
00177 {
00178          if ((unsigned short)port >= 0x400) return((unsigned int)-1);
00179 
00180         return(*(volatile unsigned char*)(((unsigned short)(port))+IOPortBase));
00181 }
00182 
00183 static __inline__ unsigned int
00184 inw(port)
00185      short port;
00186 {
00187          if ((unsigned short)port >= 0x400) return((unsigned int)-1);
00188 
00189         return(*(volatile unsigned short*)(((unsigned short)(port))+IOPortBase));
00190 }
00191 
00192 static __inline__ unsigned int
00193 inl(port)
00194      short port;
00195 {
00196          if ((unsigned short)port >= 0x400) return((unsigned int)-1);
00197 
00198         return(*(volatile unsigned long*)(((unsigned short)(port))+IOPortBase));
00199 }
00200 #else /* __arm32__ */
00201 #if defined(Lynx) && defined(__powerpc__)
00202 extern unsigned char *ioBase;
00203 
00204 static volatile void
00205 eieio()
00206 {
00207         __asm__ __volatile__ ("eieio");
00208 }
00209 
00210 static void
00211 outb(port, value)
00212 short port;
00213 unsigned char value;
00214 {
00215         *(uchar *)(ioBase + port) = value; eieio();
00216 }
00217 
00218 static void
00219 outw(port, value)
00220 short port;
00221 unsigned short value;
00222 {
00223         *(unsigned short *)(ioBase + port) = value; eieio();
00224 }
00225 
00226 static void
00227 outl(port, value)
00228 short port;
00229 unsigned long value;
00230 {
00231         *(unsigned long *)(ioBase + port) = value; eieio();
00232 }
00233 
00234 static unsigned char
00235 inb(port)
00236 short port;
00237 {
00238         unsigned char val;
00239 
00240         val = *((unsigned char *)(ioBase + port)); eieio();
00241         return(val);
00242 }
00243 
00244 static unsigned short
00245 inw(port)
00246 short port;
00247 {
00248         unsigned short val;
00249 
00250         val = *((unsigned short *)(ioBase + port)); eieio();
00251         return(val);
00252 }
00253 
00254 static unsigned long
00255 inl(port)
00256 short port;
00257 {
00258         unsigned long val;
00259 
00260         val = *((unsigned long *)(ioBase + port)); eieio();
00261         return(val);
00262 }
00263 
00264 #else
00265 #if defined(__FreeBSD__) && defined(__alpha__)
00266 
00267 #include <sys/types.h>
00268 
00269 extern void outb(u_int32_t port, u_int8_t val);
00270 extern void outw(u_int32_t port, u_int16_t val);
00271 extern void outl(u_int32_t port, u_int32_t val);
00272 extern u_int8_t inb(u_int32_t port);
00273 extern u_int16_t inw(u_int32_t port);
00274 extern u_int32_t inl(u_int32_t port);
00275 
00276 #else
00277 #ifdef GCCUSESGAS
00278 static __inline__ void
00279 outb(port, val)
00280 short port;
00281 char val;
00282 {
00283    __asm__ __volatile__("outb %0,%1" : :"a" (val), "d" (port));
00284 }
00285 
00286 static __inline__ void
00287 outw(port, val)
00288 short port;
00289 short val;
00290 {
00291    __asm__ __volatile__("outw %0,%1" : :"a" (val), "d" (port));
00292 }
00293 
00294 static __inline__ void
00295 outl(port, val)
00296 short port;
00297 unsigned int val;
00298 {
00299    __asm__ __volatile__("outl %0,%1" : :"a" (val), "d" (port));
00300 }
00301 
00302 static __inline__ unsigned int
00303 inb(port)
00304 short port;
00305 {
00306    unsigned char ret;
00307    __asm__ __volatile__("inb %1,%0" :
00308        "=a" (ret) :
00309        "d" (port));
00310    return ret;
00311 }
00312 
00313 static __inline__ unsigned int
00314 inw(port)
00315 short port;
00316 {
00317    unsigned short ret;
00318    __asm__ __volatile__("inw %1,%0" :
00319        "=a" (ret) :
00320        "d" (port));
00321    return ret;
00322 }
00323 
00324 static __inline__ unsigned int
00325 inl(port)
00326 short port;
00327 {
00328    unsigned int ret;
00329    __asm__ __volatile__("inl %1,%0" :
00330        "=a" (ret) :
00331        "d" (port));
00332    return ret;
00333 }
00334 
00335 #else /* GCCUSESGAS */
00336 
00337 static __inline__ void
00338 outb(port, val)
00339      short port;
00340      char val;
00341 {
00342   __asm__ __volatile__("out%B0 (%1)" : :"a" (val), "d" (port));
00343 }
00344 
00345 static __inline__ void
00346 outw(port, val)
00347      short port;
00348      short val;
00349 {
00350   __asm__ __volatile__("out%W0 (%1)" : :"a" (val), "d" (port));
00351 }
00352 
00353 static __inline__ void
00354 outl(port, val)
00355      short port;
00356      unsigned int val;
00357 {
00358   __asm__ __volatile__("out%L0 (%1)" : :"a" (val), "d" (port));
00359 }
00360 
00361 static __inline__ unsigned int
00362 inb(port)
00363      short port;
00364 {
00365   unsigned int ret;
00366   __asm__ __volatile__("in%B0 (%1)" :
00367                    "=a" (ret) :
00368                    "d" (port));
00369   return ret;
00370 }
00371 
00372 static __inline__ unsigned int
00373 inw(port)
00374      short port;
00375 {
00376   unsigned int ret;
00377   __asm__ __volatile__("in%W0 (%1)" :
00378                    "=a" (ret) :
00379                    "d" (port));
00380   return ret;
00381 }
00382 
00383 static __inline__ unsigned int
00384 inl(port)
00385      short port;
00386 {
00387   unsigned int ret;
00388   __asm__ __volatile__("in%L0 (%1)" :
00389                    "=a" (ret) :
00390                    "d" (port));
00391   return ret;
00392 }
00393 
00394 #endif /* GCCUSESGAS */
00395 #endif /* Lynx && __powerpc__ */
00396 #endif /* arm32 */
00397 #endif /* linux && __sparc__ */
00398 #endif /* linux && __alpha__ */
00399 #endif /* __FreeBSD__ && __alpha__ */
00400 
00401 #if defined(linux) || defined(__arm32__) || (defined(Lynx) && defined(__powerpc__))
00402 
00403 #define intr_disable()
00404 #define intr_enable()
00405 
00406 #else 
00407 
00408 static __inline__ void
00409 intr_disable()
00410 {
00411   __asm__ __volatile__("cli");
00412 }
00413 
00414 static __inline__ void
00415 intr_enable()
00416 {
00417   __asm__ __volatile__("sti");
00418 }
00419 
00420 #endif /* else !linux && !__arm32__ */
00421 
00422 #else /* __GNUC__ */
00423 
00424 #if defined(_MINIX) && defined(_ACK)
00425 
00426 /* inb, outb, inw and outw are defined in the library */
00427 /* ... but I've no idea if the same is true for inl & outl */
00428 
00429 u8_t inb(U16_t);
00430 void outb(U16_t, U8_t);
00431 u16_t inw(U16_t);
00432 void outw(U16_t, U16_t);
00433 u32_t inl(U16_t);
00434 void outl(U16_t, U32_t);
00435 
00436 #else /* not _MINIX and _ACK */
00437 
00438 # if defined(__STDC__) && (__STDC__ == 1)
00439 #  ifndef NCR
00440 #  define asm __asm
00441 #  endif
00442 # endif
00443 # ifdef SVR4
00444 #  include <sys/types.h>
00445 #  ifndef __USLC__
00446 #   define __USLC__
00447 #  endif
00448 # endif
00449 #ifndef SCO325
00450 # include <sys/inline.h>
00451 #else
00452 # include "../common/scoasm.h"
00453 #endif
00454 #define intr_disable() asm("cli")
00455 #define intr_enable()  asm("sti")
00456 
00457 #endif /* _MINIX and _ACK */
00458 #endif /* __GNUC__ */