void Wdg_Init (const Wdg_ConfigType* ConfigPtr)
{
/* Keep a pointer to the config. */
configWdgPtr = ConfigPtr;
Wdg_SetMode(ConfigPtr->Wdg_ModeConfig->Wdg_DefaultMode);
}
/**
* Starts the watchdog
* @param timeout - is in either ms or ticks
*/
static void StartWatchdog(uint32 timeout)
{
/*lint -save -e923 Ok, that casting is done in Freescale header file */
#if defined(CFG_MPC5567)
(void)timeout;
ECSM.SWTCR.R = 0x00D8;
#elif defined(CFG_MPC563XM)
SWT.TO.R = timeout;/* Timeout in ticks */
SWT.CR.R = 0x8000011BuL;
#elif defined(CFG_MPC5777M)
SWT.CR.R = 0xE000011BuL; /* Access for all cores */
#elif defined(CFG_MPC5644A)
SWT.TO.R = timeout;/* Timeout in ticks */
SWT.MCR.R = 0x8000011BuL;
#elif defined(CFG_MPC5744P) || defined(CFG_MPC5645S) || defined(CFG_MPC5643L) || defined(CFG_SPC56XL70) || defined(CFG_MPC560X)
/* Clear soft lock */
SWT.SR.R = SOFTLOCK_WORD_1; /* Write keys to clear soft lock bit */
SWT.SR.R = SOFTLOCK_WORD_2;
#if defined(CFG_MPC5645S) || defined(CFG_MPC560X)
/* Clocked by 128 kHz IRC clock */
SWT.TO.R = timeout * 128u; /* Timeout in ms */
#else
/* Clocked by 16 MHz IRC clock */
SWT.TO.R = timeout * 16000u; /* Timeout in ms */
#endif
/* Enable Watchdog */
/*lint -e{970} Lint does not seem handle typeof well */
SWT.CR.B = (typeof(SWT.CR.B)){.RIA = 1, .SLK = 1, .FRZ = 1, .WEN = 1, .MAP0 = 1};
#elif defined(CFG_MPC5668)
/* Clocked by 16 MHz IRC clock */
/* Clear softlock */
WRITE32(SWT_BASE + SWT_SR, SOFTLOCK_WORD_1);
WRITE32(SWT_BASE + SWT_SR, SOFTLOCK_WORD_2);
/* Write TMO */
WRITE32(SWT_BASE + SWT_TO, timeout * 16000 ); /* Timeout in ms */
/* Enable Watchdog */
WRITE32(SWT_BASE + SWT_CR,0x80000000UL + CR_RIA + CR_SLK + CR_CSL + CR_FRZ + CR_WEN);
#elif defined(CFG_MPC5516)
/* We running on system clock, ie SIU_SYSCLK.SWTCLKSEL, so get the value */
/* The timeout is 2^x, so get best possible value
* Table for 80Mhz
* ------------------
* 2^9 = 512 = 6.4 uS
* 2^15 = 400 uS
* 2^20 = 13 mS
* 2^28 = 3.3 S
* 2^31 = 26,84 S
*
* Formula:
* 1/clock * 2^n = tmo_in_s
* 2^n = tmo_in_s * clock -> n = log2(tmo_in_s * clock) = log2(tmo_in_ms * clock / 1000 )
* */
uint32 swtVal = ilog2( Mcu_Arc_GetSystemClock()/1000 * timeout ); /* Timeout in ms */
#if defined(CFG_WDG_TEST)
MCM.SWTCR.R = (SWTCR_SWE + SWTCR_SWRI(WDG_SWRI_VAL) + swtVal);
#else
MCM.SWTCR.R = (SWTCR_SWE + SWTCR_SWRI(2) + swtVal);
#endif
#else
MCM.SWTCR.R = 0x00D8u;
#endif
/*lint -restore */
}
/**
* Stops the watchdog
*/
static void StopWatchdog(void)
{
/*lint -save -e923 Ok, the casting is done in Freesacale header file */
#if defined(CFG_MPC5567)
ECSM.SWTCR.R = 0x0059u;
#elif defined(CFG_MPC560X) || defined(CFG_MPC5668) || defined(CFG_MPC563XM) || defined(CFG_MPC5744P) || defined(CFG_MPC5645S) || defined(CFG_MPC5643L) || defined(CFG_SPC56XL70)
SWT.SR.R = SOFTLOCK_WORD_1; /* Write keys to clear soft lock bit */
SWT.SR.R = SOFTLOCK_WORD_2;
/*lint -e{970} Lint does not seem handle typeof well */
SWT.CR.B = (typeof(SWT.CR.B)){.RIA = 1, .FRZ = 1, .WEN = 0, .MAP0 = 1};
#elif defined(CFG_MPC5777M)
SWT.SR.R = SOFTLOCK_WORD_1; /* Write keys to clear soft lock bit */
SWT.SR.R = SOFTLOCK_WORD_2;
SWT.CR.R = 0xE000010AuL; /* Access for all cores */
#elif defined(CFG_MPC5644A)
SWT.SR.R = SOFTLOCK_WORD_1; /* Write keys to clear soft lock bit */
SWT.SR.R = SOFTLOCK_WORD_2;
SWT.MCR.B = (typeof(SWT.MCR.B)){.RIA = 1, .FRZ = 1, .WEN = 0, .MAP0 = 1};
#elif defined(CFG_MPC5516)
MCM.SWTCR.R = 0x0u; /* Disable the watchdog */
#else
MCM.SWTCR.R = 0x0059u;
#endif
/*lint -restore */
}
#if (WDG_VERSION_INFO_API == STD_ON)
void Wdg_GetVersionInfo(Std_VersionInfoType* versioninfo)
{
/* @req SWS_Wdg_00174 */
VALIDATE(versioninfo != NULL, WDG_GET_VERSION_INFO_SERVICE_ID, WDG_E_PARAM_POINTER);
versioninfo->vendorID = WDG_VENDOR_ID;
versioninfo->moduleID = WDG_MODULE_ID;
versioninfo->sw_major_version = WDG_SW_MAJOR_VERSION;
versioninfo->sw_minor_version = WDG_SW_MINOR_VERSION;
versioninfo->sw_patch_version = WDG_SW_PATCH_VERSION;
}
#endif
void Wdg_Init (const Wdg_ConfigType* ConfigPtr)
{
/* @req SWS_Wdg_00001 */
/* @req SWS_Wdg_00100 */
/* @req SWS_Wdg_00101 */
/*@req SWS_Wdg_00089 */
VALIDATE(ConfigPtr != NULL, WDG_INIT_SERVICE_ID, WDG_E_PARAM_POINTER);
/* @req SWS_Wdg_00010 */
VALIDATE(runTimeData.configWdgPtr == NULL, WDG_INIT_SERVICE_ID, WDG_E_DRIVER_STATE);
/* Keep a pointer to the config. */
/* @req SWS_Wdg_00019 Always set regardless of DET or debugging support */
runTimeData.configWdgPtr = ConfigPtr;
/* Ignoring return value, DET error set in Wdg_SetMode */
(void)Wdg_SetMode(ConfigPtr->Wdg_ModeConfig->Wdg_DefaultMode);
}