/*
* waits for a completion of an I2C transfer
*
* Returns
* Nothing
*/
void SkI2cWaitIrq(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC) /* I/O Context */
{
SK_SENSOR *pSen;
SK_U64 StartTime;
SK_U32 IrqSrc;
pSen = &pAC->I2c.SenTable[pAC->I2c.CurrSens];
if (pSen->SenState == SK_SEN_IDLE) {
return;
}
StartTime = SkOsGetTime(pAC);
do {
if (SkOsGetTime(pAC) - StartTime > SK_TICKS_PER_SEC / 8) {
SK_I2C_STOP(IoC);
#ifndef SK_DIAG
SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_I2C_E016, SKERR_I2C_E016MSG);
#endif /* !SK_DIAG */
return;
}
SK_IN32(IoC, B0_ISRC, &IrqSrc);
} while ((IrqSrc & IS_I2C_READY) == 0);
pSen->SenState = SK_SEN_IDLE;
return;
} /* SkI2cWaitIrq */
/*
* waits for a completion of an I2C transfer
*
* returns 0: success, transfer completes
* 1: error, transfer does not complete, I2C transfer
* killed, wait loop terminated.
*/
int SkI2cWait(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O Context */
int Event) /* complete event to wait for (I2C_READ or I2C_WRITE) */
{
SK_U64 StartTime;
SK_U32 I2cCtrl;
StartTime = SkOsGetTime(pAC);
do {
if (SkOsGetTime(pAC) - StartTime > SK_TICKS_PER_SEC / 8) {
SK_I2C_STOP(IoC);
#ifndef SK_DIAG
SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_I2C_E002, SKERR_I2C_E002MSG);
#endif /* !SK_DIAG */
return(1);
}
SK_I2C_GET_CTL(IoC, &I2cCtrl);
} while ((I2cCtrl & I2C_FLAG) == (SK_U32)Event << 31);
return(0);
} /* SkI2cWait */
/*
* waits for a completion of a TWSI transfer
*
* returns 0: success, transfer completes
* 1: error, transfer does not complete, TWSI transfer
* killed, wait loop terminated.
*/
int SkI2cWait(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O Context */
int Event) /* complete event to wait for (I2C_READ or I2C_WRITE) */
{
SK_U64 StartTime;
SK_U64 CurrentTime;
SK_U32 I2cCtrl;
StartTime = SkOsGetTime(pAC);
do {
CurrentTime = SkOsGetTime(pAC);
if (CurrentTime - StartTime > SK_TICKS_PER_SEC / 8) {
SK_I2C_STOP(IoC);
#ifndef SK_DIAG
if (pAC->I2c.InitLevel > SK_INIT_DATA) {
SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_I2C_E002, SKERR_I2C_E002MSG);
}
#endif /* !SK_DIAG */
return(1);
}
SK_I2C_GET_CTL(IoC, &I2cCtrl);
#ifdef xYUKON_DBG
printf("StartTime=%lu, CurrentTime=%lu\n",
StartTime, CurrentTime);
if (kbhit()) {
return(1);
}
#endif /* YUKON_DBG */
} while ((I2cCtrl & I2C_FLAG) == (SK_U32)Event << 31);
return(0);
} /* SkI2cWait */
/*
* The only Event to be served is the timeout event
*
*/
int SkI2cEvent(
SK_AC *pAC, /* Adapter Context */
SK_IOC IoC, /* I/O Context */
SK_U32 Event, /* Module specific Event */
SK_EVPARA Para) /* Event specific Parameter */
{
int ReadComplete;
SK_SENSOR *pSen;
SK_U32 Time;
SK_EVPARA ParaLocal;
int i;
/* New case: no sensors */
if (pAC->I2c.MaxSens == 0) {
return(0);
}
switch (Event) {
case SK_I2CEV_IRQ:
pSen = &pAC->I2c.SenTable[pAC->I2c.CurrSens];
ReadComplete = SkI2cReadSensor(pAC, IoC, pSen);
if (ReadComplete) {
/* Check sensor against defined thresholds */
SkI2cCheckSensor(pAC, pSen);
/* Increment Current sensor and set appropriate Timeout */
pAC->I2c.CurrSens++;
if (pAC->I2c.CurrSens >= pAC->I2c.MaxSens) {
pAC->I2c.CurrSens = 0;
Time = SK_I2C_TIM_LONG;
}
else {
Time = SK_I2C_TIM_SHORT;
}
/* Start Timer */
ParaLocal.Para64 = (SK_U64)0;
pAC->I2c.TimerMode = SK_TIMER_NEW_GAUGING;
SkTimerStart(pAC, IoC, &pAC->I2c.SenTimer, Time,
SKGE_I2C, SK_I2CEV_TIM, ParaLocal);
}
else {
/* Start Timer */
ParaLocal.Para64 = (SK_U64)0;
pAC->I2c.TimerMode = SK_TIMER_WATCH_SM;
SkTimerStart(pAC, IoC, &pAC->I2c.SenTimer, SK_I2C_TIM_WATCH,
SKGE_I2C, SK_I2CEV_TIM, ParaLocal);
}
break;
case SK_I2CEV_TIM:
if (pAC->I2c.TimerMode == SK_TIMER_NEW_GAUGING) {
ParaLocal.Para64 = (SK_U64)0;
SkTimerStop(pAC, IoC, &pAC->I2c.SenTimer);
pSen = &pAC->I2c.SenTable[pAC->I2c.CurrSens];
ReadComplete = SkI2cReadSensor(pAC, IoC, pSen);
if (ReadComplete) {
/* Check sensor against defined thresholds */
SkI2cCheckSensor(pAC, pSen);
/* Increment Current sensor and set appropriate Timeout */
pAC->I2c.CurrSens++;
if (pAC->I2c.CurrSens == pAC->I2c.MaxSens) {
pAC->I2c.CurrSens = 0;
Time = SK_I2C_TIM_LONG;
}
else {
Time = SK_I2C_TIM_SHORT;
}
/* Start Timer */
ParaLocal.Para64 = (SK_U64)0;
pAC->I2c.TimerMode = SK_TIMER_NEW_GAUGING;
SkTimerStart(pAC, IoC, &pAC->I2c.SenTimer, Time,
SKGE_I2C, SK_I2CEV_TIM, ParaLocal);
}
}
else {
pSen = &pAC->I2c.SenTable[pAC->I2c.CurrSens];
pSen->SenErrFlag = SK_SEN_ERR_FAULTY;
SK_I2C_STOP(IoC);
/* Increment Current sensor and set appropriate Timeout */
pAC->I2c.CurrSens++;
if (pAC->I2c.CurrSens == pAC->I2c.MaxSens) {
pAC->I2c.CurrSens = 0;
Time = SK_I2C_TIM_LONG;
}
else {
Time = SK_I2C_TIM_SHORT;
}
/* Start Timer */
ParaLocal.Para64 = (SK_U64)0;
pAC->I2c.TimerMode = SK_TIMER_NEW_GAUGING;
SkTimerStart(pAC, IoC, &pAC->I2c.SenTimer, Time,
SKGE_I2C, SK_I2CEV_TIM, ParaLocal);
}
break;
case SK_I2CEV_CLEAR:
for (i = 0; i < SK_MAX_SENSORS; i++) {
pAC->I2c.SenTable[i].SenErrFlag = SK_SEN_ERR_OK;
pAC->I2c.SenTable[i].SenErrCts = 0;
pAC->I2c.SenTable[i].SenWarnCts = 0;
pAC->I2c.SenTable[i].SenBegErrTS = 0;
pAC->I2c.SenTable[i].SenBegWarnTS = 0;
pAC->I2c.SenTable[i].SenLastErrTrapTS = (SK_U64)0;
pAC->I2c.SenTable[i].SenLastErrLogTS = (SK_U64)0;
pAC->I2c.SenTable[i].SenLastWarnTrapTS = (SK_U64)0;
pAC->I2c.SenTable[i].SenLastWarnLogTS = (SK_U64)0;
}
break;
default:
SK_ERR_LOG(pAC, SK_ERRCL_SW, SKERR_I2C_E006, SKERR_I2C_E006MSG);
}
return(0);
} /* SkI2cEvent*/
