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Diffstat (limited to 'drivers/scsi/dpt/osd_util.h')
| -rw-r--r-- | drivers/scsi/dpt/osd_util.h | 358 |
1 files changed, 358 insertions, 0 deletions
diff --git a/drivers/scsi/dpt/osd_util.h b/drivers/scsi/dpt/osd_util.h new file mode 100644 index 0000000..4b56c04 --- /dev/null +++ b/drivers/scsi/dpt/osd_util.h @@ -0,0 +1,358 @@ +/* BSDI osd_util.h,v 1.8 1998/06/03 19:14:58 karels Exp */ + +/* + * Copyright (c) 1996-1999 Distributed Processing Technology Corporation + * All rights reserved. + * + * Redistribution and use in source form, with or without modification, are + * permitted provided that redistributions of source code must retain the + * above copyright notice, this list of conditions and the following disclaimer. + * + * This software is provided `as is' by Distributed Processing Technology and + * any express or implied warranties, including, but not limited to, the + * implied warranties of merchantability and fitness for a particular purpose, + * are disclaimed. In no event shall Distributed Processing Technology be + * liable for any direct, indirect, incidental, special, exemplary or + * consequential damages (including, but not limited to, procurement of + * substitute goods or services; loss of use, data, or profits; or business + * interruptions) however caused and on any theory of liability, whether in + * contract, strict liability, or tort (including negligence or otherwise) + * arising in any way out of the use of this driver software, even if advised + * of the possibility of such damage. + * + */ + +#ifndef __OSD_UTIL_H +#define __OSD_UTIL_H + +/*File - OSD_UTIL.H + **************************************************************************** + * + *Description: + * + * This file contains defines and function prototypes that are + *operating system dependent. The resources defined in this file + *are not specific to any particular application. + * + *Copyright Distributed Processing Technology, Corp. + * 140 Candace Dr. + * Maitland, Fl. 32751 USA + * Phone: (407) 830-5522 Fax: (407) 260-5366 + * All Rights Reserved + * + *Author: Doug Anderson + *Date: 1/7/94 + * + *Editors: + * + *Remarks: + * + * + *****************************************************************************/ + + +/*Definitions - Defines & Constants ----------------------------------------- */ + +/*----------------------------- */ +/* Operating system selections: */ +/*----------------------------- */ + +/*#define _DPT_MSDOS */ +/*#define _DPT_WIN_3X */ +/*#define _DPT_WIN_4X */ +/*#define _DPT_WIN_NT */ +/*#define _DPT_NETWARE */ +/*#define _DPT_OS2 */ +/*#define _DPT_SCO */ +/*#define _DPT_UNIXWARE */ +/*#define _DPT_SOLARIS */ +/*#define _DPT_NEXTSTEP */ +/*#define _DPT_BANYAN */ + +/*-------------------------------- */ +/* Include the OS specific defines */ +/*-------------------------------- */ + +/*#define OS_SELECTION From Above List */ +/*#define SEMAPHORE_T ??? */ +/*#define DLL_HANDLE_T ??? */ + +#if (defined(KERNEL) && (defined(__FreeBSD__) || defined(__bsdi__))) +# include "i386/isa/dpt_osd_defs.h" +#else +# include "osd_defs.h" +#endif + +#ifndef DPT_UNALIGNED + #define DPT_UNALIGNED +#endif + +#ifndef DPT_EXPORT + #define DPT_EXPORT +#endif + +#ifndef DPT_IMPORT + #define DPT_IMPORT +#endif + +#ifndef DPT_RUNTIME_IMPORT + #define DPT_RUNTIME_IMPORT DPT_IMPORT +#endif + +/*--------------------- */ +/* OS dependent defines */ +/*--------------------- */ + +#if defined (_DPT_MSDOS) || defined (_DPT_WIN_3X) + #define _DPT_16_BIT +#else + #define _DPT_32_BIT +#endif + +#if defined (_DPT_SCO) || defined (_DPT_UNIXWARE) || defined (_DPT_SOLARIS) || defined (_DPT_AIX) || defined (SNI_MIPS) || defined (_DPT_BSDI) || defined (_DPT_FREE_BSD) || defined(_DPT_LINUX) + #define _DPT_UNIX +#endif + +#if defined (_DPT_WIN_3x) || defined (_DPT_WIN_4X) || defined (_DPT_WIN_NT) \ + || defined (_DPT_OS2) + #define _DPT_DLL_SUPPORT +#endif + +#if !defined (_DPT_MSDOS) && !defined (_DPT_WIN_3X) && !defined (_DPT_NETWARE) + #define _DPT_PREEMPTIVE +#endif + +#if !defined (_DPT_MSDOS) && !defined (_DPT_WIN_3X) + #define _DPT_MULTI_THREADED +#endif + +#if !defined (_DPT_MSDOS) + #define _DPT_MULTI_TASKING +#endif + + /* These exist for platforms that */ + /* chunk when accessing mis-aligned */ + /* data */ +#if defined (SNI_MIPS) || defined (_DPT_SOLARIS) + #if defined (_DPT_BIG_ENDIAN) + #if !defined (_DPT_STRICT_ALIGN) + #define _DPT_STRICT_ALIGN + #endif + #endif +#endif + + /* Determine if in C or C++ mode */ +#ifdef __cplusplus + #define _DPT_CPP +#else + #define _DPT_C +#endif + +/*-------------------------------------------------------------------*/ +/* Under Solaris the compiler refuses to accept code like: */ +/* { {"DPT"}, 0, NULL .... }, */ +/* and complains about the {"DPT"} part by saying "cannot use { } */ +/* to initialize char*". */ +/* */ +/* By defining these ugly macros we can get around this and also */ +/* not have to copy and #ifdef large sections of code. I know that */ +/* these macros are *really* ugly, but they should help reduce */ +/* maintenance in the long run. */ +/* */ +/*-------------------------------------------------------------------*/ +#if !defined (DPTSQO) + #if defined (_DPT_SOLARIS) + #define DPTSQO + #define DPTSQC + #else + #define DPTSQO { + #define DPTSQC } + #endif /* solaris */ +#endif /* DPTSQO */ + + +/*---------------------- */ +/* OS dependent typedefs */ +/*---------------------- */ + +#if defined (_DPT_MSDOS) || defined (_DPT_SCO) + #define BYTE unsigned char + #define WORD unsigned short +#endif + +#ifndef _DPT_TYPEDEFS + #define _DPT_TYPEDEFS + typedef unsigned char uCHAR; + typedef unsigned short uSHORT; + typedef unsigned int uINT; + typedef unsigned long uLONG; + + typedef union { + uCHAR u8[4]; + uSHORT u16[2]; + uLONG u32; + } access_U; +#endif + +#if !defined (NULL) + #define NULL 0 +#endif + + +/*Prototypes - function ----------------------------------------------------- */ + +#ifdef __cplusplus + extern "C" { /* Declare all these functions as "C" functions */ +#endif + +/*------------------------ */ +/* Byte reversal functions */ +/*------------------------ */ + + /* Reverses the byte ordering of a 2 byte variable */ +#if (!defined(osdSwap2)) + uSHORT osdSwap2(DPT_UNALIGNED uSHORT *); +#endif // !osdSwap2 + + /* Reverses the byte ordering of a 4 byte variable and shifts left 8 bits */ +#if (!defined(osdSwap3)) + uLONG osdSwap3(DPT_UNALIGNED uLONG *); +#endif // !osdSwap3 + + +#ifdef _DPT_NETWARE + #include "novpass.h" /* For DPT_Bswapl() prototype */ + /* Inline the byte swap */ + #ifdef __cplusplus + inline uLONG osdSwap4(uLONG *inLong) { + return *inLong = DPT_Bswapl(*inLong); + } + #else + #define osdSwap4(inLong) DPT_Bswapl(inLong) + #endif // cplusplus +#else + /* Reverses the byte ordering of a 4 byte variable */ +# if (!defined(osdSwap4)) + uLONG osdSwap4(DPT_UNALIGNED uLONG *); +# endif // !osdSwap4 + + /* The following functions ALWAYS swap regardless of the * + * presence of DPT_BIG_ENDIAN */ + + uSHORT trueSwap2(DPT_UNALIGNED uSHORT *); + uLONG trueSwap4(DPT_UNALIGNED uLONG *); + +#endif // netware + + +/*-------------------------------------* + * Network order swap functions * + * * + * These functions/macros will be used * + * by the structure insert()/extract() * + * functions. * + * + * We will enclose all structure * + * portability modifications inside * + * #ifdefs. When we are ready, we * + * will #define DPT_PORTABLE to begin * + * using the modifications. * + *-------------------------------------*/ +uLONG netSwap4(uLONG val); + +#if defined (_DPT_BIG_ENDIAN) + +// for big-endian we need to swap + +#ifndef NET_SWAP_2 +#define NET_SWAP_2(x) (((x) >> 8) | ((x) << 8)) +#endif // NET_SWAP_2 + +#ifndef NET_SWAP_4 +#define NET_SWAP_4(x) netSwap4((x)) +#endif // NET_SWAP_4 + +#else + +// for little-endian we don't need to do anything + +#ifndef NET_SWAP_2 +#define NET_SWAP_2(x) (x) +#endif // NET_SWAP_2 + +#ifndef NET_SWAP_4 +#define NET_SWAP_4(x) (x) +#endif // NET_SWAP_4 + +#endif // big endian + + + +/*----------------------------------- */ +/* Run-time loadable module functions */ +/*----------------------------------- */ + + /* Loads the specified run-time loadable DLL */ +DLL_HANDLE_T osdLoadModule(uCHAR *); + /* Unloads the specified run-time loadable DLL */ +uSHORT osdUnloadModule(DLL_HANDLE_T); + /* Returns a pointer to a function inside a run-time loadable DLL */ +void * osdGetFnAddr(DLL_HANDLE_T,uCHAR *); + +/*--------------------------------------- */ +/* Mutually exclusive semaphore functions */ +/*--------------------------------------- */ + + /* Create a named semaphore */ +SEMAPHORE_T osdCreateNamedSemaphore(char *); + /* Create a mutually exlusive semaphore */ +SEMAPHORE_T osdCreateSemaphore(void); + /* create an event semaphore */ +SEMAPHORE_T osdCreateEventSemaphore(void); + /* create a named event semaphore */ +SEMAPHORE_T osdCreateNamedEventSemaphore(char *); + + /* Destroy the specified mutually exclusive semaphore object */ +uSHORT osdDestroySemaphore(SEMAPHORE_T); + /* Request access to the specified mutually exclusive semaphore */ +uLONG osdRequestSemaphore(SEMAPHORE_T,uLONG); + /* Release access to the specified mutually exclusive semaphore */ +uSHORT osdReleaseSemaphore(SEMAPHORE_T); + /* wait for a event to happen */ +uLONG osdWaitForEventSemaphore(SEMAPHORE_T, uLONG); + /* signal an event */ +uLONG osdSignalEventSemaphore(SEMAPHORE_T); + /* reset the event */ +uLONG osdResetEventSemaphore(SEMAPHORE_T); + +/*----------------- */ +/* Thread functions */ +/*----------------- */ + + /* Releases control to the task switcher in non-preemptive */ + /* multitasking operating systems. */ +void osdSwitchThreads(void); + + /* Starts a thread function */ +uLONG osdStartThread(void *,void *); + +/* what is my thread id */ +uLONG osdGetThreadID(void); + +/* wakes up the specifed thread */ +void osdWakeThread(uLONG); + +/* osd sleep for x miliseconds */ +void osdSleep(uLONG); + +#define DPT_THREAD_PRIORITY_LOWEST 0x00 +#define DPT_THREAD_PRIORITY_NORMAL 0x01 +#define DPT_THREAD_PRIORITY_HIGHEST 0x02 + +uCHAR osdSetThreadPriority(uLONG tid, uCHAR priority); + +#ifdef __cplusplus + } /* end the xtern "C" declaration */ +#endif + +#endif /* osd_util_h */ |