static void hifCleanupDevice(HIF_DEVICE *device)
{
int count;
CriticalSectionDelete(&device->lock);
for (count = 0; count < BUS_REQUEST_MAX_NUM_TOTAL; count++) {
if (device->busrequestblob[count].request != NULL){
SDDeviceFreeRequest(device->handle,device->busrequestblob[count].request);
device->busrequestblob[count].request = NULL;
}
}
KernelFree(device);
}
void CleanupHIFScatterResources(HIF_DEVICE *device)
{
HIF_SCATTER_REQ *pReq;
while (1) {
pReq = AllocScatterReq(device);
if (NULL == pReq) {
break;
}
if (GET_SDREQUEST_SR(pReq) != NULL) {
/* free bus request */
SDDeviceFreeRequest(device->handle, GET_SDREQUEST_SR(pReq));
SET_SDREQUEST_SR(pReq, NULL);
}
CleanupScatterResource(device,pReq);
A_FREE(pReq);
}
}
A_STATUS SetupHIFScatterSupport(HIF_DEVICE *device, HIF_DEVICE_SCATTER_SUPPORT_INFO *pInfo)
{
A_STATUS status = A_ERROR;
int maxTransferSizePerScatter = MAX_SCATTER_REQ_TRANSFER_SIZE;
int size, i;
HIF_SCATTER_REQ *pReq;
SDREQUEST *sdrequest;
do {
DetermineScatterMethod(device);
if (device->ScatterMethod == HIF_SCATTER_NONE) {
/* no scatter support */
break;
}
AR_DEBUG_PRINTF(ATH_DEBUG_INIT,("HIF : Cache Line Size: %d bytes \n",A_GET_CACHE_LINE_BYTES()));
size = sizeof(HIF_SCATTER_REQ) +
(MAX_SCATTER_ENTRIES_PER_REQ - 1) * (sizeof(HIF_SCATTER_ITEM));
for (i = 0; i < MAX_SCATTER_REQUESTS; i++) {
pReq = A_MALLOC(size);
if (NULL == pReq) {
break;
}
A_MEMZERO(pReq, size);
/* save the device instance */
SET_DEVICE_INFO_SR(pReq, device);
/* allocate a bus request for this scatter request */
sdrequest = SDDeviceAllocRequest(device->handle);
if (NULL == sdrequest) {
A_FREE(pReq);
break;
}
/* store bus request into private area */
SET_SDREQUEST_SR(pReq,sdrequest);
status = SetupScatterResource(device,pReq);
if (A_FAILED(status)) {
SDDeviceFreeRequest(device->handle, sdrequest);
A_FREE(pReq);
break;
}
/* add it to the free pool */
FreeScatterReq(device, pReq);
}
if (i != MAX_SCATTER_REQUESTS) {
status = A_NO_MEMORY;
break;
}
/* set function pointers */
pInfo->pAllocateReqFunc = AllocScatterReq;
pInfo->pFreeReqFunc = FreeScatterReq;
pInfo->pReadWriteScatterFunc = HifReadWriteScatter;
pInfo->MaxScatterEntries = MAX_SCATTER_ENTRIES_PER_REQ;
pInfo->MaxTransferSizePerScatterReq = maxTransferSizePerScatter;
status = A_OK;
} while (FALSE);
if (A_FAILED(status)) {
CleanupHIFScatterResources(device);
}
return status;
}
