/* callback when our fetch to enable/disable completes */
static void DevGMboxReadCreditsAsyncHandler(void *Context, struct htc_packet *pPacket)
{
struct ar6k_device *pDev = (struct ar6k_device *)Context;
AR_DEBUG_PRINTF(ATH_DEBUG_IRQ,("+DevGMboxReadCreditsAsyncHandler: (dev: 0x%lX)\n", (unsigned long)pDev));
if (pPacket->Status) {
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,
("Read Credit Operation failed! status:%d \n", pPacket->Status));
} else {
int credits = 0;
credits = ProcessCreditCounterReadBuffer(pPacket->pBuffer, AR6K_REG_IO_BUFFER_SIZE);
pDev->GMboxInfo.pCreditsPendingCallback(pDev->GMboxInfo.pProtocolContext,
credits,
pDev->GMboxInfo.CreditCountIRQEnabled);
}
/* free this IO packet */
AR6KFreeIOPacket(pDev,pPacket);
AR_DEBUG_PRINTF(ATH_DEBUG_IRQ,("-DevGMboxReadCreditsAsyncHandler \n"));
}
/* callback when our fetch to enable/disable completes */
static void DevGMboxReadCreditsAsyncHandler(void *Context, HTC_PACKET *pPacket)
{
AR6K_DEVICE *pDev = (AR6K_DEVICE *)Context;
AR_DEBUG_PRINTF(ATH_DEBUG_IRQ,("+DevGMboxReadCreditsAsyncHandler: (dev: 0x%X)\n", (A_UINT32)pDev));
if (A_FAILED(pPacket->Status)) {
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,
("Read Credit Operation failed! status:%d \n", pPacket->Status));
} else {
int credits = 0;
credits = ProcessCreditCounterReadBuffer(pPacket->pBuffer, AR6K_REG_IO_BUFFER_SIZE);
pDev->GMboxInfo.pCreditsPendingCallback(pDev->GMboxInfo.pProtocolContext,
credits,
pDev->GMboxInfo.CreditCountIRQEnabled);
}
/* free this IO packet */
AR6KFreeIOPacket(pDev,pPacket);
AR_DEBUG_PRINTF(ATH_DEBUG_IRQ,("-DevGMboxReadCreditsAsyncHandler \n"));
}
int DevGMboxReadCreditCounter(struct ar6k_device *pDev, bool AsyncMode, int *pCredits)
{
int status = 0;
struct htc_packet *pIOPacket = NULL;
AR_DEBUG_PRINTF(ATH_DEBUG_SEND,("+DevGMboxReadCreditCounter (%s) \n", AsyncMode ? "ASYNC" : "SYNC"));
do {
pIOPacket = AR6KAllocIOPacket(pDev);
if (NULL == pIOPacket) {
status = A_NO_MEMORY;
A_ASSERT(false);
break;
}
A_MEMZERO(pIOPacket->pBuffer,AR6K_REG_IO_BUFFER_SIZE);
if (AsyncMode) {
/* stick in our completion routine when the I/O operation completes */
pIOPacket->Completion = DevGMboxReadCreditsAsyncHandler;
pIOPacket->pContext = pDev;
/* read registers asynchronously */
HIFReadWrite(pDev->HIFDevice,
AR6K_GMBOX_CREDIT_DEC_ADDRESS,
pIOPacket->pBuffer,
AR6K_REG_IO_BUFFER_SIZE, /* hit the register multiple times */
HIF_RD_ASYNC_BYTE_FIX,
pIOPacket);
pIOPacket = NULL;
break;
}
pIOPacket->Completion = NULL;
/* if we get here we are doing it synchronously */
status = HIFReadWrite(pDev->HIFDevice,
AR6K_GMBOX_CREDIT_DEC_ADDRESS,
pIOPacket->pBuffer,
AR6K_REG_IO_BUFFER_SIZE,
HIF_RD_SYNC_BYTE_FIX,
NULL);
} while (false);
if (status) {
AR_DEBUG_PRINTF(ATH_DEBUG_ERR,
(" DevGMboxReadCreditCounter failed! status:%d \n", status));
}
if (pIOPacket != NULL) {
if (!status) {
/* sync mode processing */
*pCredits = ProcessCreditCounterReadBuffer(pIOPacket->pBuffer, AR6K_REG_IO_BUFFER_SIZE);
}
AR6KFreeIOPacket(pDev,pIOPacket);
}
AR_DEBUG_PRINTF(ATH_DEBUG_SEND,("-DevGMboxReadCreditCounter (%s) (%d) \n",
AsyncMode ? "ASYNC" : "SYNC", status));
return status;
}
