/*----------------------------------------------------------------------------*/
VOID
roamingFsmSteps (
IN P_ADAPTER_T prAdapter,
IN ENUM_ROAMING_STATE_T eNextState
)
{
P_ROAMING_INFO_T prRoamingFsmInfo;
ENUM_ROAMING_STATE_T ePreviousState;
BOOLEAN fgIsTransition = (BOOLEAN)FALSE;
prRoamingFsmInfo = (P_ROAMING_INFO_T)&(prAdapter->rWifiVar.rRoamingInfo);
do {
/* Do entering Next State */
#if DBG
DBGLOG(ROAMING, STATE, ("TRANSITION: [%s] -> [%s]\n",
apucDebugRoamingState[prRoamingFsmInfo->eCurrentState],
apucDebugRoamingState[eNextState]));
#else
DBGLOG(ROAMING, STATE, ("[%d] TRANSITION: [%d] -> [%d]\n",
DBG_ROAMING_IDX,
prRoamingFsmInfo->eCurrentState,
eNextState));
#endif
/* NOTE(Kevin): This is the only place to change the eCurrentState(except initial) */
ePreviousState = prRoamingFsmInfo->eCurrentState;
prRoamingFsmInfo->eCurrentState = eNextState;
fgIsTransition = (BOOLEAN)FALSE;
/* Do tasks of the State that we just entered */
switch (prRoamingFsmInfo->eCurrentState) {
/* NOTE(Kevin): we don't have to rearrange the sequence of following
* switch case. Instead I would like to use a common lookup table of array
* of function pointer to speed up state search.
*/
case ROAMING_STATE_IDLE:
case ROAMING_STATE_DECISION:
break;
case ROAMING_STATE_DISCOVERY:
{
OS_SYSTIME rCurrentTime;
GET_CURRENT_SYSTIME(&rCurrentTime);
if (CHECK_FOR_TIMEOUT(rCurrentTime, prRoamingFsmInfo->rRoamingDiscoveryUpdateTime,
SEC_TO_SYSTIME(ROAMING_DISCOVERY_TIMEOUT_SEC))) {
DBGLOG(ROAMING, LOUD, ("roamingFsmSteps: DiscoveryUpdateTime Timeout"));
aisFsmRunEventRoamingDiscovery(prAdapter, TRUE);
}
else {
DBGLOG(ROAMING, LOUD, ("roamingFsmSteps: DiscoveryUpdateTime Updated"));
aisFsmRunEventRoamingDiscovery(prAdapter, FALSE);
}
}
break;
case ROAMING_STATE_ROAM:
break;
default:
ASSERT(0); /* Make sure we have handle all STATEs */
}
}
while (fgIsTransition);
return;
} /* end of roamingFsmSteps() */
/*----------------------------------------------------------------------------*/
BOOLEAN nicpmSetDriverOwn(IN P_ADAPTER_T prAdapter)
{
#define LP_OWN_BACK_TOTAL_DELAY_MS 2048 /* exponential of 2 */
#define LP_OWN_BACK_LOOP_DELAY_MS 1 /* exponential of 2 */
#define LP_OWN_BACK_CLR_OWN_ITERATION 256 /* exponential of 2 */
#define LP_OWN_BACK_FAILED_RETRY_CNT 5
#define LP_OWN_BACK_FAILED_LOG_SKIP_MS 2000
#define LP_OWN_BACK_FAILED_RESET_CNT 5
BOOLEAN fgStatus = TRUE;
UINT_32 i, u4CurrTick, u4RegValue = 0;
BOOLEAN fgTimeout;
ASSERT(prAdapter);
if (prAdapter->fgIsFwOwn == FALSE)
return fgStatus;
DBGLOG(INIT, INFO, ("DRIVER OWN\n"));
u4CurrTick = kalGetTimeTick();
i = 0;
while (1) {
HAL_MCR_RD(prAdapter, MCR_WHLPCR, &u4RegValue);
fgTimeout =
((kalGetTimeTick() - u4CurrTick) > LP_OWN_BACK_TOTAL_DELAY_MS) ? TRUE : FALSE;
if (u4RegValue & WHLPCR_FW_OWN_REQ_SET) {
prAdapter->fgIsFwOwn = FALSE;
prAdapter->u4OwnFailedCount = 0;
prAdapter->u4OwnFailedLogCount = 0;
break;
}
else if((i > LP_OWN_BACK_FAILED_RETRY_CNT) &&
(kalIsCardRemoved(prAdapter->prGlueInfo) || fgIsBusAccessFailed || fgTimeout || wlanIsChipNoAck(prAdapter))) {
if ((prAdapter->u4OwnFailedCount == 0) ||
CHECK_FOR_TIMEOUT(u4CurrTick, prAdapter->rLastOwnFailedLogTime, MSEC_TO_SYSTIME(LP_OWN_BACK_FAILED_LOG_SKIP_MS))) {
DBGLOG(INIT, ERROR, ("LP cannot be own back, Timeout[%u](%ums), BusAccessError[%u], Reseting[%u], CardRemoved[%u] NoAck[%u] Cnt[%u]\n",
fgTimeout,
kalGetTimeTick() - u4CurrTick,
fgIsBusAccessFailed,
kalIsResetting(),
kalIsCardRemoved(prAdapter->prGlueInfo),
wlanIsChipNoAck(prAdapter),
prAdapter->u4OwnFailedCount));
DBGLOG(INIT, INFO, ("Skip LP own back failed log for next %ums\n", LP_OWN_BACK_FAILED_LOG_SKIP_MS));
prAdapter->u4OwnFailedLogCount++;
if(prAdapter->u4OwnFailedLogCount > LP_OWN_BACK_FAILED_RESET_CNT) {
/* Trigger RESET */
#if CFG_CHIP_RESET_SUPPORT
glResetTrigger(prAdapter);
#endif
}
GET_CURRENT_SYSTIME(&prAdapter->rLastOwnFailedLogTime);
}
prAdapter->u4OwnFailedCount++;
fgStatus = FALSE;
break;
} else {
if ((i & (LP_OWN_BACK_CLR_OWN_ITERATION - 1)) == 0) {
/* Software get LP ownership - per 256 iterations */
HAL_MCR_WR(prAdapter, MCR_WHLPCR, WHLPCR_FW_OWN_REQ_CLR);
}
/* Delay for LP engine to complete its operation. */
kalMsleep(LP_OWN_BACK_LOOP_DELAY_MS);
i++;
}
}
return fgStatus;
}