A_STATUS
bmiBufferReceive(HIF_DEVICE *device,
A_UCHAR *buffer,
A_UINT32 length)
{
A_STATUS status;
A_UINT32 address;
A_UINT32 timeout;
#ifdef ONLY_16BIT
A_UINT16 cmdCredits;
#else
A_UCHAR cmdCredits;
#endif
HIF_REQUEST request;
HIF_FRAME_REQUEST(&request, HIF_READ, HIF_EXTENDED_IO, HIF_SYNCHRONOUS,
HIF_BYTE_BASIS, HIF_FIXED_ADDRESS);
address = COUNT_ADDRESS + (HTC_MAILBOX_NUM_MAX + ENDPOINT1) * 1;
status = HIFReadWrite(device, address, (A_UCHAR *)&cmdCredits,
sizeof(cmdCredits), &request, NULL);
if (status != A_OK) {
BMI_DEBUG_PRINTF(ATH_LOG_ERR,"Unable to decrement the command credit count register\n");
return A_ERROR;
}
timeout = BMI_COMMUNICATION_TIMEOUT;
while(timeout--) {
if (cmdCredits == 1) {
HIF_FRAME_REQUEST(&request, HIF_READ, HIF_EXTENDED_IO,
HIF_SYNCHRONOUS, HIF_BYTE_BASIS,
HIF_FIXED_ADDRESS);
address = HIF_MBOX_END_ADDR(ENDPOINT1);
status = HIFReadWrite(device, address, buffer, length,
&request, NULL);
if (status != A_OK) {
BMI_DEBUG_PRINTF(ATH_LOG_ERR,"Unable to read the BMI data from the device\n");
return A_ERROR;
}
break;
}
HIF_FRAME_REQUEST(&request, HIF_READ, HIF_EXTENDED_IO, HIF_SYNCHRONOUS,
HIF_BYTE_BASIS, HIF_FIXED_ADDRESS);
address = COUNT_ADDRESS + (HTC_MAILBOX_NUM_MAX + ENDPOINT1) * 1;
status = HIFReadWrite(device, address, (A_UCHAR *)&cmdCredits,
sizeof(cmdCredits), &request, NULL);
if (status != A_OK) {
BMI_DEBUG_PRINTF(ATH_LOG_ERR,"Unable to decrement the command credit count register\n");
return A_ERROR;
}
status = A_ERROR;
A_MDELAY(1);
}
if (status != A_OK) {
BMI_DEBUG_PRINTF(ATH_LOG_ERR,"BMI Communication timeout\n");
}
return status;
}
A_STATUS
HIFReadWrite(HIF_DEVICE *device,
A_UINT32 address,
A_UCHAR *buffer,
A_UINT32 length,
HIF_REQUEST *request,
void *context)
{
A_UINT8 rw;
A_UINT8 mode;
A_UINT8 opcode;
A_UINT32 blockLen, blockCount, count;
PSD_BUS_REQUEST busRequest;
A_STATUS status = A_OK;
SD_TRANSFER_CLASS transferClass;
DWORD dwArg;
A_UCHAR command;
SD_API_STATUS sdStatus;
SD_COMMAND_RESPONSE response;
HIF_DEBUG_PRINTF(ATH_LOG_TRC, "HIFReadWrite:Enter\n");
HIF_DEBUG_PRINTF(ATH_LOG_TRC, "Address 0x%x\n", address);
if (request->dmode == HIF_BLOCK_BASIS && request->type != HIF_EXTENDED_IO) {
HIF_DEBUG_PRINTF(ATH_LOG_ERR, "Block mode not allowed for this type of command\n");
return A_ERROR;
}
if (request->dmode == HIF_BLOCK_BASIS) {
mode = SD_IO_BLOCK_MODE;
blockLen = HIF_MBOX_BLOCK_SIZE;
blockCount = length / HIF_MBOX_BLOCK_SIZE;
count = blockCount;
HIF_DEBUG_PRINTF(ATH_LOG_TRC,
"Block mode (BlockLen: %d, BlockCount: %d)\n",
blockLen, blockCount);
} else if (request->dmode == HIF_BYTE_BASIS) {
mode = SD_IO_BYTE_MODE;
blockLen = length;
blockCount = 1;
count = blockLen;
HIF_DEBUG_PRINTF(ATH_LOG_TRC,
"Byte mode (BlockLen: %d, BlockCount: %d)\n",
blockLen, blockCount);
} else {
HIF_DEBUG_PRINTF(ATH_LOG_ERR,
"Invalid data mode: %d\n", request->dmode);
return A_ERROR;
}
if (request->amode == HIF_FIXED_ADDRESS) {
opcode = SD_IO_FIXED_ADDRESS;
HIF_DEBUG_PRINTF(ATH_LOG_TRC, "Fixed ");
} else if (request->amode == HIF_INCREMENTAL_ADDRESS) {
opcode = SD_IO_INCREMENT_ADDRESS;
HIF_DEBUG_PRINTF(ATH_LOG_TRC, "Incremental ");
} else {
HIF_DEBUG_PRINTF(ATH_LOG_ERR,
"Invalid address mode: %d\n", request->amode);
return A_ERROR;
}
if (request->direction == HIF_WRITE) {
transferClass = SD_WRITE;
rw = SD_IO_OP_WRITE;
if ((address >= HIF_MBOX_START_ADDR(0)) &&
(address <= HIF_MBOX_END_ADDR(3))) {
/* Mailbox write. Adjust the address so that the last byte
falls on the EOM address */
address = address + HIF_MBOX_WIDTH - length;
}
HIF_DEBUG_PRINTF(ATH_LOG_TRC, "[Write]");
} else {
transferClass = SD_READ;
rw = SD_IO_OP_READ;
HIF_DEBUG_PRINTF(ATH_LOG_TRC, "[Read ]");
}
if (request->type == HIF_EXTENDED_IO) {
dwArg = BUILD_IO_RW_EXTENDED_ARG(rw, mode, funcNo,
address, opcode, count);
command = SD_IO_RW_EXTENDED;
} else if (request->type == HIF_BASIC_IO) {
dwArg = BUILD_IO_RW_DIRECT_ARG(rw, SD_IO_RW_NORMAL,
funcNo, address, 0);
command = SD_IO_RW_NORMAL;
} else {
HIF_DEBUG_PRINTF(ATH_LOG_ERR,
"Invalid command type: %d\n", request->type);
return A_ERROR;
}
if (request->emode == HIF_SYNCHRONOUS) {
HIF_DEBUG_PRINTF(ATH_LOG_TRC, "Synchronous\n");
sdStatus = SDSynchronousBusRequest(device->handle, command, dwArg,
transferClass, ResponseR5, &response, blockCount,
blockLen, buffer, 0);
if (!SD_API_SUCCESS(sdStatus)) {
HIF_DEBUG_PRINTF(ATH_LOG_ERR, "SDBusRequest failed 0x%x\n", sdStatus);
status = A_ERROR;
}
} else {
HIF_DEBUG_PRINTF(ATH_LOG_TRC, "Asynchronous\n");
sdStatus = SDBusRequest(device->handle, command, dwArg, transferClass,
ResponseR5, blockCount, blockLen, buffer,
hifRWCompletionHandler, (DWORD) context, &busRequest, 0);
if (!SD_API_SUCCESS(sdStatus)) {
status = A_ERROR;
}
}
return status;
}
static A_STATUS
__HIFReadWrite(HIF_DEVICE *device,
A_UINT32 address,
A_UCHAR *buffer,
A_UINT32 length,
A_UINT32 request,
void *context)
{
A_UINT8 opcode;
A_STATUS status = A_OK;
int ret;
A_UINT8 *tbuffer;
A_BOOL bounced = FALSE;
AR_DEBUG_ASSERT(device != NULL);
AR_DEBUG_ASSERT(device->func != NULL);
AR_DEBUG_PRINTF(ATH_DEBUG_TRACE, ("AR6000: Device: 0x%p, buffer:0x%p (addr:0x%X)\n",
device, buffer, address));
do {
if (request & HIF_EXTENDED_IO) {
//AR_DEBUG_PRINTF(ATH_DEBUG_TRACE, ("AR6000: Command type: CMD53\n"));
} else {
AR_DEBUG_PRINTF(ATH_DEBUG_ERROR,
("AR6000: Invalid command type: 0x%08x\n", request));
status = A_EINVAL;
break;
}
if (request & HIF_BLOCK_BASIS) {
/* round to whole block length size */
length = (length / HIF_MBOX_BLOCK_SIZE) * HIF_MBOX_BLOCK_SIZE;
AR_DEBUG_PRINTF(ATH_DEBUG_TRACE,
("AR6000: Block mode (BlockLen: %d)\n",
length));
} else if (request & HIF_BYTE_BASIS) {
AR_DEBUG_PRINTF(ATH_DEBUG_TRACE,
("AR6000: Byte mode (BlockLen: %d)\n",
length));
} else {
AR_DEBUG_PRINTF(ATH_DEBUG_ERROR,
("AR6000: Invalid data mode: 0x%08x\n", request));
status = A_EINVAL;
break;
}
#if 0
/* useful for checking register accesses */
if (length & 0x3) {
A_PRINTF(KERN_ALERT"AR6000: HIF (%s) is not a multiple of 4 bytes, addr:0x%X, len:%d\n",
request & HIF_WRITE ? "write":"read", address, length);
}
#endif
if (request & HIF_WRITE) {
if ((address >= HIF_MBOX_START_ADDR(0)) &&
(address <= HIF_MBOX_END_ADDR(3)))
{
AR_DEBUG_ASSERT(length <= HIF_MBOX_WIDTH);
/*
* Mailbox write. Adjust the address so that the last byte
* falls on the EOM address.
*/
address += (HIF_MBOX_WIDTH - length);
}
}
if (request & HIF_FIXED_ADDRESS) {
opcode = CMD53_FIXED_ADDRESS;
AR_DEBUG_PRINTF(ATH_DEBUG_TRACE, ("AR6000: Address mode: Fixed 0x%X\n", address));
} else if (request & HIF_INCREMENTAL_ADDRESS) {
opcode = CMD53_INCR_ADDRESS;
AR_DEBUG_PRINTF(ATH_DEBUG_TRACE, ("AR6000: Address mode: Incremental 0x%X\n", address));
} else {
AR_DEBUG_PRINTF(ATH_DEBUG_ERROR,
("AR6000: Invalid address mode: 0x%08x\n", request));
status = A_EINVAL;
break;
}
if (request & HIF_WRITE) {
#if HIF_USE_DMA_BOUNCE_BUFFER
if (BUFFER_NEEDS_BOUNCE(buffer)) {
AR_DEBUG_ASSERT(device->dma_buffer != NULL);
tbuffer = device->dma_buffer;
/* copy the write data to the dma buffer */
AR_DEBUG_ASSERT(length <= HIF_DMA_BUFFER_SIZE);
memcpy(tbuffer, buffer, length);
bounced = TRUE;
} else {
tbuffer = buffer;
}
#else
tbuffer = buffer;
#endif
if (opcode == CMD53_FIXED_ADDRESS) {
ret = sdio_writesb(device->func, address, tbuffer, length);
AR_DEBUG_PRINTF(ATH_DEBUG_TRACE, ("AR6000: writesb ret=%d address: 0x%X, len: %d, 0x%X\n",
ret, address, length, *(int *)tbuffer));
} else {
ret = sdio_memcpy_toio(device->func, address, tbuffer, length);
AR_DEBUG_PRINTF(ATH_DEBUG_TRACE, ("AR6000: writeio ret=%d address: 0x%X, len: %d, 0x%X\n",
ret, address, length, *(int *)tbuffer));
}
} else if (request & HIF_READ) {
#if HIF_USE_DMA_BOUNCE_BUFFER
if (BUFFER_NEEDS_BOUNCE(buffer)) {
AR_DEBUG_ASSERT(device->dma_buffer != NULL);
AR_DEBUG_ASSERT(length <= HIF_DMA_BUFFER_SIZE);
tbuffer = device->dma_buffer;
bounced = TRUE;
} else {
tbuffer = buffer;
}
#else
tbuffer = buffer;
#endif
if (opcode == CMD53_FIXED_ADDRESS) {
ret = sdio_readsb(device->func, tbuffer, address, length);
AR_DEBUG_PRINTF(ATH_DEBUG_TRACE, ("AR6000: readsb ret=%d address: 0x%X, len: %d, 0x%X\n",
ret, address, length, *(int *)tbuffer));
} else {
ret = sdio_memcpy_fromio(device->func, tbuffer, address, length);
AR_DEBUG_PRINTF(ATH_DEBUG_TRACE, ("AR6000: readio ret=%d address: 0x%X, len: %d, 0x%X\n",
ret, address, length, *(int *)tbuffer));
}
#if HIF_USE_DMA_BOUNCE_BUFFER
if (bounced) {
/* copy the read data from the dma buffer */
memcpy(buffer, tbuffer, length);
}
#endif
} else {
AR_DEBUG_PRINTF(ATH_DEBUG_ERROR,
("AR6000: Invalid direction: 0x%08x\n", request));
status = A_EINVAL;
break;
}
if (ret) {
AR_DEBUG_PRINTF(ATH_DEBUG_ERROR,
("AR6000: SDIO bus operation failed! MMC stack returned : %d \n", ret));
status = A_ERROR;
}
} while (FALSE);
return status;
}
static A_STATUS
__HIFReadWrite(HIF_DEVICE *device,
A_UINT32 address,
A_UCHAR *buffer,
A_UINT32 length,
A_UINT32 request,
void *context)
{
A_UINT8 rw;
A_UINT8 mode;
A_UINT8 opcode;
A_UINT32 blockLen, blockCount, count;
PSD_BUS_REQUEST busRequest=NULL;
A_STATUS status = A_OK;
SD_TRANSFER_CLASS transferClass;
DWORD dwArg;
A_UCHAR command;
SD_API_STATUS sdStatus;
SD_COMMAND_RESPONSE response;
NDIS_DEBUG_PRINTF(0, "%s() : Enter \r\n",__FUNCTION__);
if(context != NULL)
NDIS_DEBUG_PRINTF(0, "%s() : context = 0x%08x \r\n", __FUNCTION__,context);
if ((request & HIF_BLOCK_BASIS) && (!(request & HIF_EXTENDED_IO))) {
NDIS_DEBUG_PRINTF(DBG_ERR, "Block mode not allowed for this type of command\r\n");
return A_ERROR;
}
if (request & HIF_BLOCK_BASIS)
{
mode = SD_IO_BLOCK_MODE;
blockLen = HIF_MBOX_BLOCK_SIZE;
blockCount = length / HIF_MBOX_BLOCK_SIZE;
count = blockCount;
}
else if (request & HIF_BYTE_BASIS)
{
mode = SD_IO_BYTE_MODE;
blockLen = length;
blockCount = 1;
count = blockLen;
}
else
{
NDIS_DEBUG_PRINTF(DBG_ERR, "Invalid data mode: %08x\r\n", request);
return A_ERROR;
}
if (request & HIF_FIXED_ADDRESS)
{
opcode = SD_IO_FIXED_ADDRESS;
NDIS_DEBUG_PRINTF(DBG_TRACE, "Fixed ");
}
else if (request & HIF_INCREMENTAL_ADDRESS)
{
opcode = SD_IO_INCREMENT_ADDRESS;
NDIS_DEBUG_PRINTF(0, "Incremental ");
}
else
{
NDIS_DEBUG_PRINTF(DBG_ERR, "Invalid address mode: %08x\r\n", request);
return A_ERROR;
}
if (request & HIF_WRITE) {
transferClass = SD_WRITE;
rw = SD_IO_OP_WRITE;
if ((address >= HIF_MBOX_START_ADDR(0)) &&
(address <= HIF_MBOX_END_ADDR(3))) {
/* Mailbox write. Adjust the address so that the last byte
falls on the EOM address */
address = address + HIF_MBOX_WIDTH - length;
}
NDIS_DEBUG_PRINTF(0, "[Write]");
} else {
transferClass = SD_READ;
rw = SD_IO_OP_READ;
NDIS_DEBUG_PRINTF(0, "[Read ] \r\n");
}
if (request & HIF_EXTENDED_IO) {
dwArg = BUILD_IO_RW_EXTENDED_ARG(rw, mode, funcNo,
address, opcode, count);
command = SD_IO_RW_EXTENDED;
}
else if (request & HIF_BASIC_IO)
{
dwArg = BUILD_IO_RW_DIRECT_ARG(rw, SD_IO_RW_NORMAL, funcNo, address, 0);
command = SD_IO_RW_NORMAL;
}
else
{
NDIS_DEBUG_PRINTF(DBG_ERR, "Invalid command type: %08x\r\n", request);
return A_ERROR;
}
if((request & HIF_READ) && (dwArg > 0x14000000))
{
NDIS_DEBUG_PRINTF(DBG_TRACE, "Synchronous, command = %d, dwArg = 0x%08x, funcNo=%d \r\n", command, dwArg,funcNo);
NDIS_DEBUG_PRINTF(0, "blockCount=%d,blockLen=%d \r\n", blockCount, blockLen);
}
sdStatus = SDSynchronousBusRequest(device->handle, command, dwArg,
transferClass, ResponseR5, &response, blockCount,
blockLen, buffer, 0);
if (!SD_API_SUCCESS(sdStatus)) {
NDIS_DEBUG_PRINTF(DBG_ERR, "SDBusRequest failed 0x%x, device->handle = 0x%x, buffer = 0x%x\r\n", sdStatus, device->handle, buffer);
NDIS_DEBUG_PRINTF(DBG_ERR, "1[%d]2[%d]3[%d]4[%d]5[%d]6[%d] \r\n",buffer[0],buffer[1],buffer[2],buffer[3],buffer[4],buffer[5]);
status = A_ERROR;
}
if(status != A_OK)
NDIS_DEBUG_PRINTF(DBG_ERR, "%s() : Status = %d - Exit \r\n",__FUNCTION__, status);
return status;
}
void
htcReceiveFrame(HTC_ENDPOINT *endPoint)
{
A_STATUS status;
A_UINT32 address;
A_UINT32 paddedLength;
A_UINT32 frameLength;
HIF_REQUEST request;
HTC_ENDPOINT_ID endPointId;
HTC_QUEUE_ELEMENT *element;
HTC_MBOX_BUFFER *mboxBuffer;
HTC_DATA_REQUEST_QUEUE *recvQueue;
HTC_TARGET *target;
HTC_EVENT_INFO eventInfo;
HIF_DATAMODE dmode;
HTC_DEBUG_PRINTF(ATH_LOG_TRC | ATH_LOG_RECV,
"htcReceiveFrame - Enter\n");
/* Get the context */
AR_DEBUG_ASSERT(endPoint != NULL);
endPointId = GET_ENDPOINT_ID(endPoint);
target = endPoint->target;
AR_DEBUG_ASSERT(target != NULL);
recvQueue = &endPoint->recvQueue;
AR_DEBUG_ASSERT(recvQueue != NULL);
/*
* Receive the frame if we have any pending frames and a buffer to
* receive it into.
*/
if (IS_DATA_QUEUE_EMPTY(recvQueue)) {
HTC_DEBUG_PRINTF(ATH_LOG_WARN | ATH_LOG_RECV,
"Mailbox (%d) recv queue empty. Unable to remove buffer\n", endPointId);
/*
* Communicate this situation to the host via the HTC_DATA_AVAILABLE
* event to request some buffers in the queue.
*/
endPoint->rxLengthPending = htcGetFrameLength(endPoint);
AR_DEBUG_ASSERT(endPoint->rxLengthPending);
FRAME_EVENT(eventInfo, NULL, endPoint->rxLengthPending,
0, A_OK, NULL);
dispatchEvent(target, endPointId, HTC_DATA_AVAILABLE, &eventInfo);
return;
}
/*
* Get the length from the lookahead register if there is nothing
* pending.
*/
if (endPoint->rxLengthPending) {
frameLength = endPoint->rxLengthPending;
endPoint->rxLengthPending = 0;
} else {
frameLength = htcGetFrameLength(endPoint);
}
if (frameLength > HTC_MESSAGE_SIZE_MAX) {
return;
}
HTC_DEBUG_PRINTF(ATH_LOG_INF | ATH_LOG_RECV, "Frame Length: %d\n",
frameLength);
/* Adjust the length to be a multiple of block size if appropriate */
paddedLength = (frameLength + (endPoint->blockSize - 1)) &
(~(endPoint->blockSize - 1));
/*
* Receive the frame(s). Pull an empty buffer from the head of the
* Pending Receive Queue.
*/
element = removeFromMboxQueue(recvQueue);
mboxBuffer = GET_MBOX_BUFFER(element);
mboxBuffer->actualLength = paddedLength;
dmode = (endPoint->blockSize > 1) ? HIF_BLOCK_BASIS : HIF_BYTE_BASIS;
HIF_FRAME_REQUEST(&request, HIF_READ, HIF_EXTENDED_IO,
HIF_ASYNCHRONOUS, dmode, HIF_FIXED_ADDRESS);
address = HIF_MBOX_END_ADDR(endPointId);
status = HIFReadWrite(target->device, address, mboxBuffer->buffer,
mboxBuffer->actualLength, &request, element);
#ifndef HTC_SYNC
if (status != A_OK) {
#else
if (status != A_OK && status != A_PENDING) {
#endif
HTC_DEBUG_PRINTF(ATH_LOG_ERR | ATH_LOG_RECV,
"Frame reception failed\n");
if (!IS_ELEMENT_FREE(element)) {
mboxBuffer->actualLength = 0;
FRAME_EVENT(eventInfo, mboxBuffer->buffer,
mboxBuffer->bufferLength, mboxBuffer->actualLength,
A_ERROR, mboxBuffer->cookie);
RECYCLE_DATA_REQUEST_ELEMENT(element);
dispatchEvent(target, endPointId, HTC_BUFFER_RECEIVED,
&eventInfo);
HTC_DEBUG_PRINTF(ATH_LOG_TRC | ATH_LOG_RECV,
"htcReceiveFrame - Exit\n");
return;
}
}
#ifdef HTC_SYNC
else if (status == A_OK) {
element->completionCB(element, status);
}
#endif
HTC_DEBUG_PRINTF(ATH_LOG_TRC | ATH_LOG_RECV,
"htcReceiveFrame - Exit\n");
}
A_UINT32
htcGetFrameLength(HTC_ENDPOINT *endPoint)
{
HTC_TARGET *target;
A_UINT32 frameLength;
HTC_ENDPOINT_ID endPointId;
/* Get the context */
AR_DEBUG_ASSERT(endPoint != NULL);
target = endPoint->target;
AR_DEBUG_ASSERT(target != NULL);
endPointId = GET_ENDPOINT_ID(endPoint);
AR_DEBUG_ASSERT(target->table.rx_lookahead_valid & (1 << endPointId));
/* The length is contained in the first two bytes - HTC_HEADER_LEN */
frameLength = (target->table.rx_lookahead[endPointId] & 0xFFFF) +
HTC_HEADER_LEN;
AR_DEBUG_ASSERT(frameLength);
return frameLength;
}
A_STATUS HIFReadWrite(HIF_DEVICE *device,
A_UINT32 address,
A_UCHAR *buffer,
A_UINT32 length,
A_UINT32 request,
void *context)
{
SDIO_STATUS status;
SDREQUEST *sdrequest;
BUS_REQUEST *busrequest = NULL;
A_STATUS a_status = A_OK;
/* Return any new requests if the shutdown is already in progress */
if (device->shutdownInProgress) {
if (request & HIF_ASYNCHRONOUS) {
device->htcCallbacks.rwCompletionHandler(context, A_ERROR);
return A_PENDING;
}
return A_ERROR;
}
AR_DEBUG_ASSERT(device != NULL);
AR_DEBUG_ASSERT(device->handle != NULL);
AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("Device: %p\n", device));
if (length > device->curBlockSize) {
AR_DEBUG_PRINTF(ATH_DEBUG_ERROR, ("Invalid data length: %d\n", length));
return A_ERROR;
}
/*
* We do not differentiate between the extended and the basic I/O so
* we do not process the request type.
*/
/*
* We do not differentiate between the byte and block data mode so
* we do not process the request dmode.
*/
do {
/* Addressing mode */
if (request & HIF_FIXED_ADDRESS) {
AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("Address mode: Fixed\n"));
} else if (request & HIF_INCREMENTAL_ADDRESS) {
AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("Address mode: Incremental\n"));
} else {
AR_DEBUG_PRINTF(ATH_DEBUG_ERROR,
("Invalid address mode: 0x%08x\n", request));
a_status = A_ERROR;
break;
}
/*
* Mailbox write. Adjust the address so that the last byte
* falls on the EOM address.
*/
if (request & HIF_WRITE) {
if ((address >= HIF_MBOX_START_ADDR(0)) &&
(address <= HIF_MBOX_END_ADDR(3)))
{
DBG_ASSERT(length <= HIF_MBOX_WIDTH);
address += (HIF_MBOX_WIDTH - length);
}
}
/* Allocate a new bus request */
busrequest = hifAllocateBusRequest(device);
if (busrequest == NULL) {
AR_DEBUG_PRINTF(ATH_DEBUG_ERROR, ("Unable to allocate bus request\n"));
a_status = A_ERROR;
break;
}
sdrequest = busrequest->request;
sdrequest->pDataBuffer = buffer;
if (request & HIF_SYNCHRONOUS) {
AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("Execution mode: Synchronous\n"));
sdrequest->Flags = SDREQ_FLAGS_RAW;
sdrequest->pCompleteContext = NULL;
sdrequest->pCompletion = NULL;
} else if (request & HIF_ASYNCHRONOUS) {
/* Populate the bus request to be passed in as context */
AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("Execution mode: Asynchronous\n"));
/* setup async context */
busrequest->device = device;
busrequest->context = context;
sdrequest->pCompleteContext = busrequest;
sdrequest->Flags = SDREQ_FLAGS_RAW | SDREQ_FLAGS_TRANS_ASYNC;
sdrequest->pCompletion = hifRWCompletionHandler;
}
/* Indicate to the bus driver if its a read or a write */
if (request & HIF_WRITE) {
AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("Direction: Write\n"));
if (((address >= HIF_MBOX_START_ADDR(0)) &&
(address <= HIF_MBOX_END_ADDR(3)))) {
/* trapping HTC WRITE to mailbox, these will use the special DMA operation */
AR_DEBUG_PRINTF(ATH_DEBUG_TRC,
("--- MAILBOX WRITE ACCESS!!!!\n"));
ATH_SET_DMA_OPERATION(sdrequest,ATH_TRANS_WRITE,address,length);
} else {
ATH_SET_PIO_EXTERNAL_WRITE_OPERATION(sdrequest,
address,
(request & HIF_INCREMENTAL_ADDRESS) ? TRUE : FALSE,
length);
}
} else if (request & HIF_READ) {
AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("Direction: Read\n"));
if (((address >= HIF_MBOX_START_ADDR(0)) &&
(address <= HIF_MBOX_END_ADDR(3)))) {
AR_DEBUG_PRINTF(ATH_DEBUG_TRC,
(" --- MAILBOX READ ACCESS!!!!\n"));
/* trapping on HTC READ mailbox , these will use the special DMA operation */
ATH_SET_DMA_OPERATION(sdrequest,ATH_TRANS_READ,address,length);
} else {
ATH_SET_PIO_EXTERNAL_READ_OPERATION(sdrequest,
address,
request & HIF_INCREMENTAL_ADDRESS ? TRUE : FALSE,
length);
}
} else {
AR_DEBUG_PRINTF(ATH_DEBUG_ERROR,
("Invalid direction: 0x%08x\n", request));
a_status = A_ERROR;
break;
}
/* issue the request */
status = SDDEVICE_CALL_REQUEST_FUNC(device->handle, sdrequest);
if (!SDIO_SUCCESS(status)) {
AR_DEBUG_PRINTF(ATH_DEBUG_ERROR,
("HIF Read/Write failure: %d\n", status));
a_status = A_ERROR;
}
} while (FALSE);
if ((busrequest != NULL) && (request & HIF_SYNCHRONOUS)) {
hifFreeBusRequest(device,busrequest);
}
return a_status;
}
