patch-2.4.0-test3 linux/drivers/acpi/include/acenv.h

• Lines: 302
• Date: Thu Jul 6 01:22:24 2000
• Orig file: v2.4.0-test2/linux/drivers/acpi/include/acenv.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.0-test2/linux/drivers/acpi/include/acenv.h linux/drivers/acpi/include/acenv.h
@@ -0,0 +1,301 @@
+
+/******************************************************************************
+ *
+ * Name: acenv.h - Generation environment specific items
+ *
+ *****************************************************************************/
+
+/*
+ *  Copyright (C) 2000 R. Byron Moore
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef __ACENV_H__
+#define __ACENV_H__
+
+
+/*
+ * Environment configuration.  The purpose of this file is to interface to the
+ * local generation environment.
+ *
+ * 1) ACPI_USE_SYSTEM_CLIBRARY - Define this if linking to an actual C library.
+ *      Otherwise, local versions of string/memory functions will be used.
+ * 2) ACPI_USE_STANDARD_HEADERS - Define this if linking to a C library and
+ *      the standard header files may be used.
+ *
+ * The ACPI subsystem only uses low level C library functions that do not call
+ * operating system services and may therefore be inlined in the code.
+ *
+ * It may be necessary to tailor these include files to the target
+ * generation environment.
+ *
+ *
+ * Functions and constants used from each header:
+ *
+ * string.h:    memcpy
+ *              memset
+ *              strcat
+ *              strcmp
+ *              strcpy
+ *              strlen
+ *              strncmp
+ *              strncat
+ *              strncpy
+ *
+ * stdlib.h:    strtoul
+ *
+ * stdarg.h:    va_list
+ *              va_arg
+ *              va_start
+ *              va_end
+ *
+ */
+
+
+/*
+ * Environment-specific configuration
+ */
+
+#ifdef _LINUX
+
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/ctype.h>
+#include <asm/system.h>
+
+/* Single threaded */
+
+#define ACPI_APPLICATION
+
+/* Use native Linux string library */
+
+#define ACPI_USE_SYSTEM_CLIBRARY
+
+/* Special functions */
+
+#define strtoul             simple_strtoul
+
+#else
+
+/* All other environments */
+
+#define ACPI_USE_STANDARD_HEADERS
+
+#endif
+
+
+/******************************************************************************
+ *
+ * C library configuration
+ *
+ *****************************************************************************/
+
+#ifdef ACPI_USE_SYSTEM_CLIBRARY
+/*
+ * Use the standard C library headers.
+ * We want to keep these to a minimum.
+ *
+ */
+
+#ifdef ACPI_USE_STANDARD_HEADERS
+/*
+ * Use the standard headers from the standard locations
+ */
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+
+#endif /* ACPI_USE_STANDARD_HEADERS */
+
+/*
+ * We will be linking to the standard Clib functions
+ */
+
+#define STRSTR(s1,s2)           strstr((char *) (s1), (char *) (s2))
+#define STRUPR(s)               strupr((char *) (s))
+#define STRLEN(s)               strlen((char *) (s))
+#define STRCPY(d,s)             strcpy((char *) (d), (char *) (s))
+#define STRNCPY(d,s,n)          strncpy((char *) (d), (char *) (s), (n))
+#define STRNCMP(d,s,n)          strncmp((char *) (d), (char *) (s), (n))
+#define STRCMP(d,s)             strcmp((char *) (d), (char *) (s))
+#define STRCAT(d,s)             strcat((char *) (d), (char *) (s))
+#define STRNCAT(d,s,n)          strncat((char *) (d), (char *) (s), (n))
+#define STRTOUL(d,s,n)          strtoul((char *) (d), (char **) (s), (n))
+#define MEMCPY(d,s,n)           memcpy(d, s, (size_t) n)
+#define MEMSET(d,s,n)           memset(d, s, (size_t) n)
+#define TOUPPER                 toupper
+#define TOLOWER                 tolower
+
+
+/******************************************************************************
+ *
+ * Not using native C library, use local implementations
+ *
+ *****************************************************************************/
+#else
+
+/*
+ * Use local definitions of C library macros and functions
+ * NOTE: The function implementations may not be as efficient
+ * as an inline or assembly code implementation provided by a
+ * native C library.
+ */
+
+#ifndef va_arg
+
+#ifndef _VALIST
+#define _VALIST
+typedef char *va_list;
+#endif /* _VALIST */
+
+/*
+ * Storage alignment properties
+ */
+
+#define  _AUPBND                (sizeof(int) - 1)
+#define  _ADNBND                (sizeof(int) - 1)
+
+/*
+ * Variable argument list macro definitions
+ */
+
+#define _bnd(X, bnd)            (((sizeof(X)) + (bnd)) & (~(bnd)))
+#define va_arg(ap, T)           (*(T *)(((ap) += ((_bnd(T, _AUPBND))) \
+	  - (_bnd(T, _ADNBND)))))
+#define va_end(ap)              (void)0
+#define va_start(ap, A)         (void) ((ap) = (((char *)&(A)) \
+			   + (_bnd(A, _AUPBND))))
+
+#endif /* va_arg */
+
+
+#define STRSTR(s1,s2)           acpi_cm_strstr  ((char *) (s1), (char *) (s2))
+#define STRUPR(s)               acpi_cm_strupr  ((char *) (s))
+#define STRLEN(s)               acpi_cm_strlen  ((char *) (s))
+#define STRCPY(d,s)             acpi_cm_strcpy  ((char *) (d), (char *) (s))
+#define STRNCPY(d,s,n)          acpi_cm_strncpy ((char *) (d), (char *) (s), (n))
+#define STRNCMP(d,s,n)          acpi_cm_strncmp ((char *) (d), (char *) (s), (n))
+#define STRCMP(d,s)             acpi_cm_strcmp  ((char *) (d), (char *) (s))
+#define STRCAT(d,s)             acpi_cm_strcat  ((char *) (d), (char *) (s))
+#define STRNCAT(d,s,n)          acpi_cm_strncat ((char *) (d), (char *) (s), (n))
+#define STRTOUL(d,s,n)          acpi_cm_strtoul ((char *) (d), (char **) (s), (n))
+#define MEMCPY(d,s,n)           acpi_cm_memcpy  ((void *) (d), (const void *) (s), (n))
+#define MEMSET(d,v,n)           acpi_cm_memset  ((void *) (d), (v), (n))
+#define TOUPPER                 acpi_cm_to_upper
+#define TOLOWER                 acpi_cm_to_lower
+
+#endif /* ACPI_USE_SYSTEM_CLIBRARY */
+
+
+/******************************************************************************
+ *
+ * Assembly code macros
+ *
+ *****************************************************************************/
+
+/*
+ * Handle platform- and compiler-specific assembly language differences.
+ *
+ * Notes:
+ * 1) Interrupt 3 is used to break into a debugger
+ * 2) Interrupts are turned off during ACPI register setup
+ */
+
+
+#ifdef __GNUC__
+
+#ifdef __ia64__
+#define _IA64
+#endif
+
+#define ACPI_ASM_MACROS
+#define causeinterrupt(level)
+#define BREAKPOINT3
+#define disable() __cli()
+#define enable()  __sti()
+#define halt()    __asm__ __volatile__ ("sti; hlt":::"memory")
+#define wbinvd()
+
+
+/*! [Begin] no source code translation
+ *
+ * A brief explanation as GNU inline assembly is a bit hairy
+ *  %0 is the output parameter in EAX ("=a")
+ *  %1 and %2 are the input parameters in ECX ("c") and an immediate value ("i") respectively
+ *  All actual register references are preceded with "%%" as in "%%edx"
+ *  Immediate values in the assembly are preceded by "$" as in "$0x1"
+ *  The final asm parameter is the non-output registers altered by the operation
+ */
+#define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \
+	do { \
+		int dummy; \
+		asm("1:     movl (%1),%%eax;" \
+			"movl   %%eax,%%edx;" \
+			"andl   %2,%%edx;" \
+			"btsl   $0x1,%%edx;" \
+			"adcl   $0x0,%%edx;" \
+			"lock;  cmpxchgl %%edx,(%1);" \
+			"jnz    1b;" \
+			"cmpb   $0x3,%%dl;" \
+			"sbbl   %%eax,%%eax" \
+			:"=a"(Acq),"=c"(dummy):"c"(GLptr),"i"(~1L):"dx"); \
+	} while(0)
+
+#define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) \
+	do { \
+		int dummy; \
+		asm("1:     movl (%1),%%eax;" \
+			"movl   %%eax,%%edx;" \
+			"andl   %2,%%edx;" \
+			"lock;  cmpxchgl %%edx,(%1);" \
+			"jnz    1b;" \
+			"andl   $0x1,%%eax" \
+			:"=a"(Acq),"=c"(dummy):"c"(GLptr),"i"(~3L):"dx"); \
+	} while(0)
+/*! [End] no source code translation !*/
+
+#endif /* __GNUC__ */
+
+
+#ifndef ACPI_ASM_MACROS
+
+/* Unrecognized compiler, use defaults */
+
+#define ACPI_ASM_MACROS
+#define causeinterrupt(level)
+#define BREAKPOINT3
+#define disable()
+#define enable()
+#define halt()
+
+#define ACPI_ACQUIRE_GLOBAL_LOCK(Glptr, acq)
+#define ACPI_RELEASE_GLOBAL_LOCK(Glptr, acq)
+
+#endif /* ACPI_ASM_MACROS */
+
+
+#ifdef ACPI_APPLICATION
+
+/* Don't want software interrupts within a ring3 application */
+
+#undef causeinterrupt
+#undef BREAKPOINT3
+#define causeinterrupt(level)
+#define BREAKPOINT3
+#endif
+
+
+#endif /* __ACENV_H__ */