crash.c

ST5518机顶盒系统文件系统源代码！绝对超值！

/******************************************************************************

    File Name   : crash.c

    Description : Test system crash conditions.

******************************************************************************/

/* Includes ---------------------------------------------------------------- */

#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <assert.h>

#include "crash.h"
#include "sttbx.h"

/* Private Types ----------------------------------------------------------- */

/* Private Constants ------------------------------------------------------- */

/* Private Variables ------------------------------------------------------- */

static int stavfs_CrashCount = NOCRASH;  /* Don't crash by default */

#if defined(STAVFS_CRASH_TEST) && !defined(STAVFS_NO_BACKUP_ON_WRITE)
static U8 BadBuffer[] = 
{
    0X00, 0X02, 0X04, 0X06, 0X08, 0X0A, 0X0C, 0X0E, 0X01, 0X03, 0X05, 0X07, 0X09, 0X0B, 0X0D, 0X0F,
    0X20, 0X22, 0X24, 0X26, 0X28, 0X2A, 0X2C, 0X2E, 0X21, 0X23, 0X25, 0X27, 0X29, 0X2B, 0X2D, 0X2F,
    0X40, 0X42, 0X44, 0X46, 0X48, 0X4A, 0X4C, 0X4E, 0X41, 0X43, 0X45, 0X47, 0X49, 0X4B, 0X4D, 0X4F,
    0X60, 0X62, 0X64, 0X66, 0X68, 0X6A, 0X6C, 0X6E, 0X61, 0X63, 0X65, 0X67, 0X69, 0X6B, 0X6D, 0X6F,
    0X80, 0X82, 0X84, 0X86, 0X88, 0X8A, 0X8C, 0X8E, 0X81, 0X83, 0X85, 0X87, 0X89, 0X8B, 0X8D, 0X8F,
    0XA0, 0XA2, 0XA4, 0XA6, 0XA8, 0XAA, 0XAC, 0XAE, 0XA1, 0XA3, 0XA5, 0XA7, 0XA9, 0XAB, 0XAD, 0XAF,
    0XC0, 0XC2, 0XC4, 0XC6, 0XC8, 0XCA, 0XCC, 0XCE, 0XC1, 0XC3, 0XC5, 0XC7, 0XC9, 0XCB, 0XCD, 0XCF,
    0XE0, 0XE2, 0XE4, 0XE6, 0XE8, 0XEA, 0XEC, 0XEE, 0XE1, 0XE3, 0XE5, 0XE7, 0XE9, 0XEB, 0XED, 0XEF,
    0X10, 0X12, 0X14, 0X16, 0X18, 0X1A, 0X1C, 0X1E, 0X11, 0X13, 0X15, 0X17, 0X19, 0X1B, 0X1D, 0X1F,
    0X30, 0X32, 0X34, 0X36, 0X38, 0X3A, 0X3C, 0X3E, 0X31, 0X33, 0X35, 0X37, 0X39, 0X3B, 0X3D, 0X3F,
    0X50, 0X52, 0X54, 0X56, 0X58, 0X5A, 0X5C, 0X5E, 0X51, 0X53, 0X55, 0X57, 0X59, 0X5B, 0X5D, 0X5F,
    0X70, 0X72, 0X74, 0X76, 0X78, 0X7A, 0X7C, 0X7E, 0X71, 0X73, 0X75, 0X77, 0X79, 0X7B, 0X7D, 0X7F,
    0X90, 0X92, 0X94, 0X96, 0X98, 0X9A, 0X9C, 0X9E, 0X91, 0X93, 0X95, 0X97, 0X99, 0X9B, 0X9D, 0X9F,
    0XB0, 0XB2, 0XB4, 0XB6, 0XB8, 0XBA, 0XBC, 0XBE, 0XB1, 0XB3, 0XB5, 0XB7, 0XB9, 0XBB, 0XBD, 0XBF,
    0XD0, 0XD2, 0XD4, 0XD6, 0XD8, 0XDA, 0XDC, 0XDE, 0XD1, 0XD3, 0XD5, 0XD7, 0XD9, 0XDB, 0XDD, 0XDF,
    0XF0, 0XF2, 0XF4, 0XF6, 0XF8, 0XFA, 0XFC, 0XFE, 0XF1, 0XF3, 0XF5, 0XF7, 0XF9, 0XFB, 0XFD, 0XFF,
    
    0X00, 0X02, 0X04, 0X06, 0X08, 0X0A, 0X0C, 0X0E, 0X01, 0X03, 0X05, 0X07, 0X09, 0X0B, 0X0D, 0X0F,
    0X20, 0X22, 0X24, 0X26, 0X28, 0X2A, 0X2C, 0X2E, 0X21, 0X23, 0X25, 0X27, 0X29, 0X2B, 0X2D, 0X2F,
    0X40, 0X42, 0X44, 0X46, 0X48, 0X4A, 0X4C, 0X4E, 0X41, 0X43, 0X45, 0X47, 0X49, 0X4B, 0X4D, 0X4F,
    0X60, 0X62, 0X64, 0X66, 0X68, 0X6A, 0X6C, 0X6E, 0X61, 0X63, 0X65, 0X67, 0X69, 0X6B, 0X6D, 0X6F,
    0X80, 0X82, 0X84, 0X86, 0X88, 0X8A, 0X8C, 0X8E, 0X81, 0X83, 0X85, 0X87, 0X89, 0X8B, 0X8D, 0X8F,
    0XA0, 0XA2, 0XA4, 0XA6, 0XA8, 0XAA, 0XAC, 0XAE, 0XA1, 0XA3, 0XA5, 0XA7, 0XA9, 0XAB, 0XAD, 0XAF,
    0XC0, 0XC2, 0XC4, 0XC6, 0XC8, 0XCA, 0XCC, 0XCE, 0XC1, 0XC3, 0XC5, 0XC7, 0XC9, 0XCB, 0XCD, 0XCF,
    0XE0, 0XE2, 0XE4, 0XE6, 0XE8, 0XEA, 0XEC, 0XEE, 0XE1, 0XE3, 0XE5, 0XE7, 0XE9, 0XEB, 0XED, 0XEF,
    0X10, 0X12, 0X14, 0X16, 0X18, 0X1A, 0X1C, 0X1E, 0X11, 0X13, 0X15, 0X17, 0X19, 0X1B, 0X1D, 0X1F,
    0X30, 0X32, 0X34, 0X36, 0X38, 0X3A, 0X3C, 0X3E, 0X31, 0X33, 0X35, 0X37, 0X39, 0X3B, 0X3D, 0X3F,
    0X50, 0X52, 0X54, 0X56, 0X58, 0X5A, 0X5C, 0X5E, 0X51, 0X53, 0X55, 0X57, 0X59, 0X5B, 0X5D, 0X5F,
    0X70, 0X72, 0X74, 0X76, 0X78, 0X7A, 0X7C, 0X7E, 0X71, 0X73, 0X75, 0X77, 0X79, 0X7B, 0X7D, 0X7F,
    0X90, 0X92, 0X94, 0X96, 0X98, 0X9A, 0X9C, 0X9E, 0X91, 0X93, 0X95, 0X97, 0X99, 0X9B, 0X9D, 0X9F,
    0XB0, 0XB2, 0XB4, 0XB6, 0XB8, 0XBA, 0XBC, 0XBE, 0XB1, 0XB3, 0XB5, 0XB7, 0XB9, 0XBB, 0XBD, 0XBF,
    0XD0, 0XD2, 0XD4, 0XD6, 0XD8, 0XDA, 0XDC, 0XDE, 0XD1, 0XD3, 0XD5, 0XD7, 0XD9, 0XDB, 0XDD, 0XDF,
    0XF0, 0XF2, 0XF4, 0XF6, 0XF8, 0XFA, 0XFC, 0XFE, 0XF1, 0XF3, 0XF5, 0XF7, 0XF9, 0XFB, 0XFD, 0XFF,
};
#endif

/* Private Macros ---------------------------------------------------------- */

/* Private Function Prototypes --------------------------------------------- */


void stavfs_CrashTheDriver(void);
/* in src/stavfs.c to reset internal info for the driver */

        

/* Functions --------------------------------------------------------------- */


/******************************************************************************
Function Name : stavfs_SetCrash
  Description : Set how many writes to permit before crashing
   Parameters :
******************************************************************************/
void stavfs_SetCrash(int CrashCount)
{
    stavfs_CrashCount = CrashCount;
}


/******************************************************************************
Function Name : stavfs_Crash
  Description : Simulate a system crash
   Parameters :
******************************************************************************/
void stavfs_Crash(stavfs_HAL_t * HALData_p, U64 * FirstSector_p)
{
#ifdef STAVFS_CRASH_TEST
    if (stavfs_CrashCount > 0)
    {
        /* Decrement the count */
        
        stavfs_CrashCount--;
    }
    else if (stavfs_CrashCount == 0)
    {
        /* Crash !! */
        
        stavfs_CrashCount = NOCRASH;
 
#ifndef STAVFS_NO_BACKUP_ON_WRITE

        stavfs_HalWrite (HALData_p, FirstSector_p, 1, (char *) BadBuffer, FALSE);
        
#endif  
        
        /* Crash the driver */
        
        stavfs_CrashTheDriver();
 
        /* Terminate the current thread */
 
        task_exit(0);
    }
#endif
}