usrconfig.c

用于EQUATOR处理器上的FAT32文件系统（vxWorks5.5）

/* usrConfig.c - user-defined system configuration library */

/* Copyright 1984-1998 Wind River Systems, Inc. */
#include "copyright_wrs.h"

/*
modification history
--------------------
19f,10mar99,drm  Changing WINDMP to VXFUSION to reflect new product name.
19e,08oct98,rlp  added support for UGL and HTML.
19d,17sep98,ms   call cplusDemanglerInit if INCLUDE_CPLUS and INCLUDE_LOADER
19c,17sep98,cym  added code to calculate proper IP address for PCSIM.
19b,01sep98,drm  added code to initialize WindMP
19a,10aug98,cym  added code to inform tornado when the NT simulator is up.
18z,23apr98,yp   merged in TrueFFS support
18y,22apr98,elp  created group 1 module when standalone (fixed SPR# 20301).
18w,22apr98,hdn  added comment for tffsDrv().
18t,17apr98,nps  added support for rBuffShow.
18s,09mar98,sjw  merge in HTTP and JAVA changes for conflict resolution
18r,18dec97,cth  replaced windview, timestamp initialization with windviewConfig
18q,13nov97,cth  changed WV evtInstInit to wvLibInit2; removed connRtnSet, 
		 evtTaskInit; added include wvLib.h, rBuffLib.h
18p,18aug97,nps  changed WV buffer initialization with the rBuff API.
18x,06mar98,ms   changed copyright year from 1996 to 1998.
18v,04feb98,jpd  fix unsigned/signed warning (usrRoot); updated copyright date.
18u,25feb98,jgn  removed call to excShowInit(), it is called by excInit()
                 if needed (SPR #20625)
18t,19jan98,hdn  changed a condition macro to include tffsDrv().
18p,06jan98,cym  added SIMNT as processor not to clear bss.
18s,23sep97,yp   added support for TFFS.
18r,13aug97,cdp  add Thumb (ARM7TDMI_T) support;
                 'fix' unsigned/signed comparison in usrRoot.
18q,26feb97,dat  added INCLUDE_USER_APPL and USER_APPL_INIT, spr 8071.
18p,05feb97,cdp  remove ARM test hook (_func_armStartup).
18o,12dec96,cdp  added _func_armStartup for ARM platforms.
18n,13dec96,elp	 changed syncLibInit() into symSyncLibInit().
18m,18nov96,dds  SPR 2529: return status for sysScsiInit is now checked.
18l,06nov96,ms   removed 17n hack to usrClock.
18k,01nov96,hdn  added support for PCMCIA.
18j,21oct96,hdn  changed paramerters for new LPT driver.
18i,04oct96,elp  added INCLUDE_SYM_TBL_SYNC (SPR# 6775).
18h,11jul96,tam  changed copyright year from 1995 to 1996.
18l,19jul96,hdn  added support for ATA driver.
18k,25jun96,jmb  Eliminated alternative WDB macro names (SPR #5707).
18j,25jun96,dbt  Initialized _func_selWakeupListInit before tyLib (SPR #3314).
18i,21jun96,jmb  update copyright. SPR #6364
18h,21jun96,jmb  long modhist -- deleted entries prior to 1994.  SPR #6528
18g,12mar96,tam  removed all #if (CPU == PPC403).
18p,06jun96,ism  bumped copyright to 1996.
18o,26jan96,ism  cleaned up vxsim/solaris version
18f,02oct95,kvk  added sysHwInit2() for PPC603.
18e,27sep95,tpr  removed #if (CPU_FAMILY != PPC) staff.
18n,07nov95,srh  fixed C++ support comments.
18m,29oct95,dat  fixed warnings about printf arguments
18l,11oct95,jdi  doc: changed .pG to .tG.
18k,10oct95,dat	 new BSP revision id. Added WDB Banner printing
18j,15jun95,ms	 updated for new serial drivers.
18i,09jun95,ms	 cleaned up console initialization
18h,30may95,p_m  added initialization of formatted I/O library.
		 replaced spyStop() by spyLibInit().
18g,22may95,p_m  no longer initialize object format specific libraries if
		 loader is not included.
18f,22may95,myz  modified new serial device initialization for x86 support
18e,22may95,ms   added some WDB agent support
18e,30oct95,ism  updated for SIMSPARCSOLARIS
18d,28mar95,kkk  added scalability support, changed edata and end to arrays
		 (SPR #3917), changed baud rate to be a macro in configAll.h
18g,25may95,yao  changed to bzero bss segment for PPC.
18f,04apr95,caf  added PPC cache support.
18e,03mar95,yao  added shsHwInit2 () for PPC403.
18d,24feb95,caf  added PPC support.
18c,20nov94,kdl  added hashLibInit() when using dosFs.
18b,09nov94,jds  additions for scsi backward compatability ; scsi[12]IfInit()
18a,04nov94,kdl	 merge cleanup.
17l,02aug94,tpr  added cacheEnable (BRANCH_CACHE) for the MC68060.
17m,15oct94,hdn  added LPT driver.
17o,20jul94,ms   changed INCLUDE_AOUT_HPPA to INCLUDE_SOM_COFF
17n,02may94,ms   added VxSim HP hack to usrClock().
17q,15mar94,smb  renamed tEvtTask parameters.
17p,15feb94,smb  defined WV_MODE, EVTBUFFER_ADDRESS for wvInstInit().
17o,12jan94,kdl  modified posix initialization; added queued signal init.
*/

/*
DESCRIPTION
This library is the WRS-supplied configuration module for VxWorks.  It
contains the root task, the primary system initialization routine, the
network initialization routine, and the clock interrupt routine.

The include file config.h includes a number of system-dependent parameters used
in this file.

In an effort to simplify the presentation of the configuration of vxWorks,
this file has been split into smaller files.  These additional configuration
source files are located in ../../src/config/usr[xxx].c and are #included into
this file below.  This file contains the bulk of the code a customer is
likely to customize.

The module usrDepend.c contains checks that guard against unsupported
configurations suchas INCLUDE_NFS without INCLUDE_RPC.  The module
usrKernel.c contains the core initialization of the kernel which is rarely
customized, but provided for information.  The module usrNetwork.c now
contains all network initialization code.  Finally, the module usrExtra.c
contains the conditional inclusion of the optional packages selected in
configAll.h.

The source code necessary for the configuration selected is entirely
included in this file during compilation as part of a standard build in
the board support package.  No other make is necessary.

INCLUDE FILES:
config.h

SEE ALSO:
.tG "Getting Started, Cross-Development"
*/

#include "vxWorks.h"			/* always first */
#include "config.h"			/* board support configuration header */
#include "usrConfig.h"			/* general configuration header */
#include "usrDepend.c"			/* include dependency rules */
#include "usrKernel.c"			/* kernel configuration */
#include "usrExtra.c"			/* conditionally included packages */

#if CPU==SIMNT
extern int simUpMutex;
extern int win_ReleaseMutex(int hMutex);
#endif

#ifdef INCLUDE_HTTP
#include "http/httpLib.h"		/* Wind Web Server interfaces */
#endif

/* global variables */

int		consoleFd;		/* fd of initial console device */
char		consoleName[20];	/* console device name, eg. "/tyCo/0" */
SYMTAB_ID	statSymTbl;		/* system error status symbol table id*/
SYMTAB_ID	standAloneSymTbl;	/* STANDALONE version symbol table id */
SYMTAB_ID	sysSymTbl;		/* system symbol table id */
BOOT_PARAMS	sysBootParams;		/* parameters from boot line */
int		sysStartType;		/* type of boot (WARM, COLD, etc) */


#ifdef	INCLUDE_DOSFS    /* force linking in usrFsLib.c */

typedef int (*FUNC)();
extern int ioHelp();
extern int usrFdiskPartCreate();
extern int dpartPartGet();
FUNC lnkSyms[] = {ioHelp, usrFdiskPartCreate, dpartPartGet};

#endif
/*******************************************************************************
*
* usrInit - user-defined system initialization routine
*
* This is the first C code executed after the system boots.  This routine is
* called by the assembly language start-up routine sysInit() which is in the
* sysALib module of the target-specific directory.  It is called with
* interrupts locked out.  The kernel is not multitasking at this point.
*
* This routine starts by clearing BSS; thus all variables are initialized to 0,
* as per the C specification.  It then initializes the hardware by calling
* sysHwInit(), sets up the interrupt/exception vectors, and starts kernel
* multitasking with usrRoot() as the root task.
*
* RETURNS: N/A
*
* SEE ALSO: kernelLib
*
* ARGSUSED0
*/

void usrInit 
    (
    int startType
    )
    {
#if	(CPU_FAMILY == SPARC)
    excWindowInit ();				/* SPARC window management */
#endif

#if	CPU_FAMILY!=SIMNT && CPU_FAMILY!=SIMSPARCSUNOS && CPU_FAMILY!=SIMHPPA && CPU_FAMILY!=SIMSPARCSOLARIS
    /* don't assume bss variables are zero before this call */

    bzero (edata, end - edata);		/* zero out bss variables */
#endif	/* CPU_FAMILY!=SIMNT && CPU_FAMILY!=SIMSPARCSUNOS && CPU_FAMILY!=SIMHPPA && CPU_FAMILY!=SIMSPARCSOLARIS */

    /* configure data and instruction cache if available and leave disabled */

#ifdef  INCLUDE_CACHE_SUPPORT
    cacheLibInit (USER_I_CACHE_MODE, USER_D_CACHE_MODE);
#endif  /* INCLUDE_CACHE_SUPPORT */

    sysStartType = startType;			/* save type of system start */

    intVecBaseSet ((FUNCPTR *) VEC_BASE_ADRS);	/* set vector base table */

#if (CPU_FAMILY == AM29XXX)
    excSpillFillInit ();			/* am29k stack cache managemt */
#endif

#ifdef  INCLUDE_EXC_HANDLING
    excVecInit ();				/* install exception vectors */
#endif  /* INCLUDE_EXC_HANDLING */

    sysHwInit ();				/* initialize system hardware */

    usrKernelInit ();				/* configure the Wind kernel */

#ifdef  INCLUDE_CACHE_SUPPORT
#ifdef 	USER_I_CACHE_ENABLE
    cacheEnable (INSTRUCTION_CACHE);		/* enable instruction cache */
#endif	/* USER_I_CACHE_ENABLE */

#ifdef	USER_D_CACHE_ENABLE
    cacheEnable (DATA_CACHE);			/* enable data cache */
#endif 	/* USER_D_CACHE_ENABLE */

#if (CPU == MC68060)
#ifdef 	USER_B_CACHE_ENABLE
    cacheEnable (BRANCH_CACHE);			/* enable branch cache */
#endif	/* USER_B_CACHE_ENABLE */
#endif	/* (CPU == MC68060) */
#endif  /* INCLUDE_CACHE_SUPPORT */

    /* start the kernel specifying usrRoot as the root task */
    kernelInit ((FUNCPTR) usrRoot, ROOT_STACK_SIZE,
#ifdef  INCLUDE_WDB
                (char *) FREE_RAM_ADRS + WDB_POOL_SIZE,
#else
                (char *) FREE_RAM_ADRS,
#endif
		sysMemTop (), ISR_STACK_SIZE, INT_LOCK_LEVEL);
    }

/*******************************************************************************
*
* usrRoot - the root task
*
* This is the first task to run under the multitasking kernel.  It performs
* all final initialization and then starts other tasks.
*
* It initializes the I/O system, installs drivers, creates devices, and sets
* up the network, etc., as necessary for a particular configuration.  It
* may also create and load the system symbol table, if one is to be included.
* It may then load and spawn additional tasks as needed.  In the default
* configuration, it simply initializes the VxWorks shell.
*
* RETURNS: N/A
*/

void usrRoot
    (
    char *	pMemPoolStart,		/* start of system memory partition */
    unsigned	memPoolSize		/* initial size of mem pool */
    )
    {
    char tyName [20];
    int  ix;

    /* Initialize the memory pool before initializing any other package.
     * The memory associated with the root task will be reclaimed at the
     * completion of its activities.
     */

#ifdef INCLUDE_MEM_MGR_FULL
    memInit (pMemPoolStart, memPoolSize);	/* initialize memory pool */
#else
    memPartLibInit (pMemPoolStart, memPoolSize);/* initialize memory pool */
#endif /* INCLUDE_MEM_MGR_FULL */

#ifdef	INCLUDE_SHOW_ROUTINES 
    memShowInit ();				/* initialize memShow routine */
#endif	/* INCLUDE_SHOW_ROUTINES */

#if	defined(INCLUDE_MMU_BASIC) || defined(INCLUDE_MMU_FULL)
    usrMmuInit ();				/* initialize the mmu */
#endif	/* defined(INCLUDE_MMU_BASIC) || defined(INCLUDE_MMU_FULL) */

    /* set up system timer */

    sysClkConnect ((FUNCPTR) usrClock, 0);	/* connect clock ISR */
    sysClkRateSet (60);				/* set system clock rate */
    sysClkEnable ();				/* start it */

    /* 
     * select sould be initialized after NFS and RPC for proper delete
     * hook order but _func_selWakeupListInit should be set 
     * before tyLib module (SPR #3314).
     */

#ifdef  INCLUDE_SELECT
    _func_selWakeupListInit     = (FUNCPTR) selWakeupListInit;
#endif	/* INCLUDE_SELECT */

    /* initialize I/O system */

#ifdef  INCLUDE_IO_SYSTEM
    iosInit (NUM_DRIVERS, NUM_FILES, "/null");

    consoleFd = NONE;                           /* assume no console device */

#ifdef  INCLUDE_TYCODRV_5_2
#ifdef  INCLUDE_TTY_DEV
    if (NUM_TTY > 0)
	{
	tyCoDrv ();				/* install console driver */

	for (ix = 0; ix < NUM_TTY; ix++)	/* create serial devices */
	    {
	    sprintf (tyName, "%s%d", "/tyCo/", ix);

	    (void) tyCoDevCreate (tyName, ix, 512, 512);

	    if (ix == CONSOLE_TTY)
		strcpy (consoleName, tyName);	/* store console name */
	    }

	consoleFd = open (consoleName, O_RDWR, 0);

	/* set baud rate */

	(void) ioctl (consoleFd, FIOBAUDRATE, CONSOLE_BAUD_RATE);
	(void) ioctl (consoleFd, FIOSETOPTIONS, OPT_TERMINAL);
	}
#endif	/* INCLUDE_TTY_DEV */

#else   /* !INCLUDE_TYCODRV_5_2 */
#ifdef  INCLUDE_TTY_DEV
    if (NUM_TTY > 0)
	{
	ttyDrv();				/* install console driver */