SDHCD_HW_DEVICE *InitializeSPIHW(PTSTR pRegPath)
{
PSDHCD_DEVICE pDevice;
SDHCD_HW_DEVICE *pHWDevice;
DWORD threadId;
SDIO_STATUS status = SDIO_STATUS_SUCCESS;
do {
/* for now this is a static, single instance allocation */
pHWDevice = &g_HWDevice;
ZERO_POBJECT(pHWDevice);
pDevice = &pHWDevice->SpiCommon;
pHWDevice->pDevice = pDevice;
/* set the HW portion */
pDevice->pHWDevice = pHWDevice;
pHWDevice = GET_HW_DEVICE(pDevice);
SET_SDIO_STACK_VERSION(&pDevice->Hcd);
pDevice->Hcd.pName = SDIO_RAW_BD_BASE;
pDevice->Hcd.Attributes = 0;
pDevice->Hcd.pContext = pDevice;
pDevice->Hcd.pRequest = HcdRequest;
pDevice->Hcd.pConfigure = HcdConfig;
/* TODO : adjust these to match controller hardware */
pDevice->OperationalClock = 12000000; /* 12 mhz */
pDevice->Hcd.MaxBytesPerBlock = 4096; /* used as a hint to indicate max size of common buffer */
pDevice->Hcd.MaxBlocksPerTrans = 1; /* must be one*/
pDevice->Hcd.MaxClockRate = 48000000; /* 48 Mhz */
pDevice->PowerUpDelay = 100;
/* set all the supported frame widths the controller can do
* 8/16/24/32 bit frames */
pDevice->SpiHWCapabilitiesFlags = HW_SPI_FRAME_WIDTH_8 |
HW_SPI_FRAME_WIDTH_16 |
HW_SPI_FRAME_WIDTH_24 |
HW_SPI_FRAME_WIDTH_32;
pDevice->MiscFlags |= MISC_FLAG_DUMP_STATE_ON_SHUTDOWN | MISC_FLAG_RESET_SPI_IF_SHUTDOWN;
SDLIB_InitializeWorkerTask(&pHWDevice->IOCompleteWorkTask,
IOCompleteWork,
pHWDevice);
pHWDevice->pWorker = SDLIB_CreateWorker(WORKER_THREAD_PRIORITY);
if (NULL == pHWDevice->pWorker) {
status = SDIO_STATUS_NO_RESOURCES;
break;
}
/* TODO : allocate hardware resources (I/O , interrupt, DMA etc..) */
/*************************************/
status = HcdInitialize(pDevice);
/* initialize common layer */
if (!SDIO_SUCCESS(status)) {
DBG_PRINT(SDDBG_ERROR, ("SPI - failed to init common layer, status =%d\n", status));
break;
}
pHWDevice->InitStateMask |= SDHC_COMMON_INIT;
/* create the interrupt event */
pHWDevice->hIstEventSPIGpioIRQ = CreateEvent(NULL, FALSE, FALSE, NULL);
if (NULL == pHWDevice->hIstEventSPIGpioIRQ) {
status = SDIO_STATUS_NO_RESOURCES;
break;
}
/* TODO set appropriate system interrupt for GPIO IRQ,
* GPIO IRQ must be level sensitive, active LOW */
pHWDevice->SysIntrSPIGpioIRQ = 0;
/* TODO : uncomment the following to associate the GPIO IRQ to the interrupt event :
if (!InterruptInitialize(pHWDevice->SysIntrSPIGpioIRQ,
pHWDevice->hIstEventSPIGpioIRQ,
NULL,
0)) {
DBG_PRINT(SDDBG_ERROR,("SPI HCD: Failed to initialize Interrupt! \n"));
status = SDIO_STATUS_NO_RESOURCES;
break;
}
*/
/* create the IST thread */
pHWDevice->hIstSPIGpioIRQ = CreateThread(NULL,
0,
(LPTHREAD_START_ROUTINE)SpiGpioIRQInterruptThread,
(LPVOID)pHWDevice,
0,
&threadId);
if (NULL == pHWDevice->hIstSPIGpioIRQ) {
status = SDIO_STATUS_NO_RESOURCES;
DBG_PRINT(SDDBG_ERROR,("SPI HCD: Failed to Create IST! \n"));
break;
}
/* register with the SDIO bus driver */
if (!SDIO_SUCCESS((status = SDIO_RegisterHostController(&pDevice->Hcd)))) {
DBG_PRINT(SDDBG_ERROR, ("SPI HCD: Probe - failed to register with host, status =%d\n",status));
break;
}
pHWDevice->InitStateMask |= SDHC_REGISTERED;
} while (FALSE);
if (!SDIO_SUCCESS(status)) {
if (pHWDevice != NULL) {
CleanupSPIHW(pHWDevice);
pHWDevice = NULL;
}
} else {
DBG_PRINT(SDDBG_ERROR, ("SPI - HCD ready! \n"));
}
DBG_PRINT(SDDBG_TRACE, ("-SPI HCD: Setup - status : %d\n", status));
return SDIO_SUCCESS(status) ? pHWDevice : NULL;
}
BOOL
hifDeviceInserted(SDFUNCTION *function, SDDEVICE *handle)
{
A_UINT32 count;
HIF_DEVICE *device;
BOOL accepted = FALSE;
AR_DEBUG_ASSERT(function != NULL);
AR_DEBUG_ASSERT(handle != NULL);
do {
device = (HIF_DEVICE *)KernelAlloc(sizeof(HIF_DEVICE));
if (NULL == device) {
break;
}
AR_DEBUG_PRINTF(ATH_DEBUG_ERROR, ("Device: %p\n", device));
ZERO_POBJECT(device);
CriticalSectionInit(&device->lock);
device->busrequestfreelist = NULL;
device->handle = handle;
device->enabledSpiInts = ATH_SPI_INTR_PKT_AVAIL | ATH_SPI_INTR_CPU_INTR;
/* set the IRQ Handler which associates the instance with the SDDEVICE */
SDDEVICE_SET_IRQ_HANDLER(device->handle, hifIRQHandler, device);
AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("Device: %p\n", device));
if (handle->pId[0].CardFlags & CARD_RAW) {
if (strstr(SDDEVICE_GET_HCDNAME(handle), SDIO_RAW_BD_BASE) == NULL) {
/* Not supported */
break;
}
}
/* Card identification */
AR_DEBUG_PRINTF(ATH_DEBUG_TRC,
("SPI card: %s\n", SDDEVICE_GET_HCDNAME(handle)));
/* Version information */
AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("Stack version: %d.%d\n",
SDDEVICE_GET_VERSION_MAJOR(handle),
SDDEVICE_GET_VERSION_MINOR(handle)));
/* Get the maximum block size supported */
AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("Maximum block length: %d bytes\n",
SDDEVICE_GET_MAX_BLOCK_LEN(handle)));
device->curBlockSize = SDDEVICE_GET_OPER_BLOCK_LEN(handle);
AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("Current block length: %d bytes\n",
device->curBlockSize));
/* Allocate the bus requests to be used later */
for (count = 0; count < BUS_REQUEST_MAX_NUM_TOTAL; count ++) {
if ((device->busrequestblob[count].request = SDDeviceAllocRequest(handle)) == NULL){
AR_DEBUG_PRINTF(ATH_DEBUG_ERROR, ("Unable to allocate bus request\n"));
break;
}
/* free to the list */
hifFreeBusRequest(device, &device->busrequestblob[count]);
}
if (count != BUS_REQUEST_MAX_NUM_TOTAL) {
break;
}
/* Configure the SPI interface */
if ((hifConfigureSPI(device)) != A_OK) {
AR_DEBUG_PRINTF(ATH_DEBUG_ERROR, ("Failed to configure the device\n"));
break;
}
/* Inform HTC */
if ((osdrvCallbacks.deviceInsertedHandler(osdrvCallbacks.context, (void *)device)) != A_OK) {
AR_DEBUG_PRINTF(ATH_DEBUG_ERROR, ("Device rejected\n"));
return FALSE;
}
accepted = TRUE;
} while (FALSE);
if (!accepted & (device != NULL)) {
/* cleanup device */
hifCleanupDevice(device);
}
return accepted;
}