/*
* \brief Read interrupt info from FW
*
* \param hFwEvent - FwEvent Driver handle
* \return void
*
* \par Description
*
* Indicate the TwIf that HW is available and initiate transactions for reading
* the Interrupt status and the FW status.
*
* \sa
*/
static ETxnStatus fwEvent_SmReadIntrInfo (TfwEvent *pFwEvent)
{
ETxnStatus eStatus;
CL_TRACE_START_L4();
#ifdef HOST_INTR_MODE_EDGE
/* Acknowledge the host interrupt for EDGE mode (must be before HINT_STT_CLR register clear on read) */
os_InterruptServiced (pFwEvent->hOs);
#endif
/* Indicate that the chip is awake (since it interrupted us) */
twIf_HwAvailable(pFwEvent->hTwIf);
/*
* Read FW-Status structure from HW ==> Special mapping, see note!!
*
* Note: This structure actually includes two separate areas in the FW:
* 1) Interrupt-Status register - a 32 bit register (clear on read).
* 2) FW-Status structure - 64 bytes memory area
* The two areas are read in a single transaction thanks to a special memory
* partition that maps them as contiguous memory.
*/
TXN_FW_EVENT_SET_FW_STAT_ADDR(pFwEvent)
eStatus = twIf_TransactReadFWStatus (pFwEvent->hTwIf, &(pFwEvent->tFwStatusTxn.tTxnStruct));
CL_TRACE_END_L4("tiwlan_drv.ko", "CONTEXT", "FwEvent", "");
/* Return the status of the FwStatus read (complete, pending or error) */
return eStatus;
}
TI_STATUS TWD_InitHw (TI_HANDLE hTWD,
TI_UINT8 *pbuf,
TI_UINT32 length,
TI_UINT32 uRxDmaBufLen,
TI_UINT32 uTxDmaBufLen)
{
TTwd *pTWD = (TTwd *)hTWD;
TI_STATUS eStatus;
/* Provide bus related parameters to Xfer modules before any usage of the bus! */
rxXfer_SetBusParams (pTWD->hRxXfer, uRxDmaBufLen);
txXfer_SetBusParams (pTWD->hTxXfer, uTxDmaBufLen);
hwInit_SetNvsImage (pTWD->hHwInit, pbuf, length);
/*
* Update the TwIf that the HW is awake
* This will protect the initialization process from going to sleep
* After the firmware initializations completed (TWD_EnableExternalEvents), the sleep will be enabled
*/
twIf_Awake (pTWD->hTwIf);
twIf_HwAvailable (pTWD->hTwIf);
/* This initiates the HW init sequence */
eStatus = hwInit_Boot(pTWD->hHwInit);
if (eStatus == TXN_STATUS_ERROR)
{
return TI_NOK;
}
return TI_OK;
}
