static int wince_submit_control_or_bulk_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
struct wince_transfer_priv *transfer_priv = (struct wince_transfer_priv*)usbi_transfer_get_os_priv(itransfer);
struct wince_device_priv *priv = _device_priv(transfer->dev_handle->dev);
BOOL direction_in, ret;
struct winfd wfd;
DWORD flags;
HANDLE eventHandle;
PUKW_CONTROL_HEADER setup = NULL;
const BOOL control_transfer = transfer->type == LIBUSB_TRANSFER_TYPE_CONTROL;
transfer_priv->pollable_fd = INVALID_WINFD;
if (control_transfer) {
setup = (PUKW_CONTROL_HEADER) transfer->buffer;
direction_in = setup->bmRequestType & LIBUSB_ENDPOINT_IN;
} else {
direction_in = transfer->endpoint & LIBUSB_ENDPOINT_IN;
}
flags = direction_in ? UKW_TF_IN_TRANSFER : UKW_TF_OUT_TRANSFER;
flags |= UKW_TF_SHORT_TRANSFER_OK;
eventHandle = CreateEvent(NULL, FALSE, FALSE, NULL);
if (eventHandle == NULL) {
usbi_err(ctx, "Failed to create event for async transfer");
return LIBUSB_ERROR_NO_MEM;
}
wfd = usbi_create_fd(eventHandle, direction_in ? RW_READ : RW_WRITE, itransfer, &wince_cancel_transfer);
if (wfd.fd < 0) {
CloseHandle(eventHandle);
return LIBUSB_ERROR_NO_MEM;
}
transfer_priv->pollable_fd = wfd;
if (control_transfer) {
// Split out control setup header and data buffer
DWORD bufLen = transfer->length - sizeof(UKW_CONTROL_HEADER);
PVOID buf = (PVOID) &transfer->buffer[sizeof(UKW_CONTROL_HEADER)];
ret = UkwIssueControlTransfer(priv->dev, flags, setup, buf, bufLen, &transfer->actual_length, wfd.overlapped);
} else {
ret = UkwIssueBulkTransfer(priv->dev, flags, transfer->endpoint, transfer->buffer,
transfer->length, &transfer->actual_length, wfd.overlapped);
}
if (!ret) {
int libusbErr = translate_driver_error(GetLastError());
usbi_err(ctx, "UkwIssue%sTransfer failed: error %d",
control_transfer ? "Control" : "Bulk", GetLastError());
wince_clear_transfer_priv(itransfer);
return libusbErr;
}
usbi_add_pollfd(ctx, transfer_priv->pollable_fd.fd, direction_in ? POLLIN : POLLOUT);
itransfer->flags |= USBI_TRANSFER_UPDATED_FDS;
return LIBUSB_SUCCESS;
}
static int usbdk_do_bulk_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
struct usbdk_device_priv *priv = _usbdk_device_priv(transfer->dev_handle->dev);
struct usbdk_transfer_priv *transfer_priv = _usbdk_transfer_priv(itransfer);
struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
struct winfd wfd;
TransferResult transferRes;
HANDLE sysHandle;
transfer_priv->request.Buffer = (PVOID64)(uintptr_t)transfer->buffer;
transfer_priv->request.BufferLength = transfer->length;
transfer_priv->request.EndpointAddress = transfer->endpoint;
switch (transfer->type) {
case LIBUSB_TRANSFER_TYPE_BULK:
transfer_priv->request.TransferType = BulkTransferType;
break;
case LIBUSB_TRANSFER_TYPE_INTERRUPT:
transfer_priv->request.TransferType = IntertuptTransferType;
break;
default:
usbi_err(ctx, "Wrong transfer type (%d) in usbdk_do_bulk_transfer. %s", transfer->type, windows_error_str(0));
return LIBUSB_ERROR_INVALID_PARAM;
}
transfer_priv->pollable_fd = INVALID_WINFD;
sysHandle = usbdk_helper.GetRedirectorSystemHandle(priv->redirector_handle);
wfd = usbi_create_fd(sysHandle, IS_XFERIN(transfer) ? RW_READ : RW_WRITE, NULL, NULL);
// Always use the handle returned from usbi_create_fd (wfd.handle)
if (wfd.fd < 0)
return LIBUSB_ERROR_NO_MEM;
if (IS_XFERIN(transfer))
transferRes = usbdk_helper.ReadPipe(priv->redirector_handle, &transfer_priv->request, wfd.overlapped);
else
transferRes = usbdk_helper.WritePipe(priv->redirector_handle, &transfer_priv->request, wfd.overlapped);
switch (transferRes) {
case TransferSuccess:
wfd.overlapped->Internal = STATUS_COMPLETED_SYNCHRONOUSLY;
break;
case TransferSuccessAsync:
break;
case TransferFailure:
usbi_err(ctx, "ReadPipe/WritePipe failed: %s", windows_error_str(0));
usbi_free_fd(&wfd);
return LIBUSB_ERROR_IO;
}
transfer_priv->pollable_fd = wfd;
usbi_add_pollfd(ctx, transfer_priv->pollable_fd.fd, IS_XFERIN(transfer) ? POLLIN : POLLOUT);
return LIBUSB_SUCCESS;
}
static int usbdk_do_control_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
struct usbdk_device_priv *priv = _usbdk_device_priv(transfer->dev_handle->dev);
struct usbdk_transfer_priv *transfer_priv = _usbdk_transfer_priv(itransfer);
struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
struct winfd wfd;
ULONG Length;
TransferResult transResult;
HANDLE sysHandle;
sysHandle = usbdk_helper.GetRedirectorSystemHandle(priv->redirector_handle);
wfd = usbi_create_fd(sysHandle, RW_READ, NULL, NULL);
// Always use the handle returned from usbi_create_fd (wfd.handle)
if (wfd.fd < 0)
return LIBUSB_ERROR_NO_MEM;
transfer_priv->request.Buffer = (PVOID64)(uintptr_t)transfer->buffer;
transfer_priv->request.BufferLength = transfer->length;
transfer_priv->request.TransferType = ControlTransferType;
transfer_priv->pollable_fd = INVALID_WINFD;
Length = (ULONG)transfer->length;
if (IS_XFERIN(transfer))
transResult = usbdk_helper.ReadPipe(priv->redirector_handle, &transfer_priv->request, wfd.overlapped);
else
transResult = usbdk_helper.WritePipe(priv->redirector_handle, &transfer_priv->request, wfd.overlapped);
switch (transResult) {
case TransferSuccess:
wfd.overlapped->Internal = STATUS_COMPLETED_SYNCHRONOUSLY;
wfd.overlapped->InternalHigh = (DWORD)Length;
break;
case TransferSuccessAsync:
break;
case TransferFailure:
usbi_err(ctx, "ControlTransfer failed: %s", windows_error_str(0));
usbi_free_fd(&wfd);
return LIBUSB_ERROR_IO;
}
// Use priv_transfer to store data needed for async polling
transfer_priv->pollable_fd = wfd;
usbi_add_pollfd(ctx, transfer_priv->pollable_fd.fd, POLLIN);
return LIBUSB_SUCCESS;
}
static int usbdk_do_iso_transfer(struct usbi_transfer *itransfer)
{
struct libusb_transfer *transfer = USBI_TRANSFER_TO_LIBUSB_TRANSFER(itransfer);
struct usbdk_device_priv *priv = _usbdk_device_priv(transfer->dev_handle->dev);
struct usbdk_transfer_priv *transfer_priv = _usbdk_transfer_priv(itransfer);
struct libusb_context *ctx = DEVICE_CTX(transfer->dev_handle->dev);
struct winfd wfd;
TransferResult transferRes;
int i;
HANDLE sysHandle;
transfer_priv->request.Buffer = (PVOID64)(uintptr_t)transfer->buffer;
transfer_priv->request.BufferLength = transfer->length;
transfer_priv->request.EndpointAddress = transfer->endpoint;
transfer_priv->request.TransferType = IsochronousTransferType;
transfer_priv->request.IsochronousPacketsArraySize = transfer->num_iso_packets;
transfer_priv->IsochronousPacketsArray = malloc(transfer->num_iso_packets * sizeof(ULONG64));
transfer_priv->request.IsochronousPacketsArray = (PVOID64)(uintptr_t)transfer_priv->IsochronousPacketsArray;
if (!transfer_priv->IsochronousPacketsArray) {
usbi_err(ctx, "Allocation of IsochronousPacketsArray is failed, %s", windows_error_str(0));
return LIBUSB_ERROR_IO;
}
transfer_priv->IsochronousResultsArray = malloc(transfer->num_iso_packets * sizeof(USB_DK_ISO_TRANSFER_RESULT));
transfer_priv->request.Result.IsochronousResultsArray = (PVOID64)(uintptr_t)transfer_priv->IsochronousResultsArray;
if (!transfer_priv->IsochronousResultsArray) {
usbi_err(ctx, "Allocation of isochronousResultsArray is failed, %s", windows_error_str(0));
free(transfer_priv->IsochronousPacketsArray);
return LIBUSB_ERROR_IO;
}
for (i = 0; i < transfer->num_iso_packets; i++)
transfer_priv->IsochronousPacketsArray[i] = transfer->iso_packet_desc[i].length;
transfer_priv->pollable_fd = INVALID_WINFD;
sysHandle = usbdk_helper.GetRedirectorSystemHandle(priv->redirector_handle);
wfd = usbi_create_fd(sysHandle, IS_XFERIN(transfer) ? RW_READ : RW_WRITE, NULL, NULL);
// Always use the handle returned from usbi_create_fd (wfd.handle)
if (wfd.fd < 0) {
free(transfer_priv->IsochronousPacketsArray);
free(transfer_priv->IsochronousResultsArray);
return LIBUSB_ERROR_NO_MEM;
}
if (IS_XFERIN(transfer))
transferRes = usbdk_helper.ReadPipe(priv->redirector_handle, &transfer_priv->request, wfd.overlapped);
else
transferRes = usbdk_helper.WritePipe(priv->redirector_handle, &transfer_priv->request, wfd.overlapped);
switch (transferRes) {
case TransferSuccess:
wfd.overlapped->Internal = STATUS_COMPLETED_SYNCHRONOUSLY;
break;
case TransferSuccessAsync:
break;
case TransferFailure:
usbi_err(ctx, "ReadPipe/WritePipe failed: %s", windows_error_str(0));
usbi_free_fd(&wfd);
free(transfer_priv->IsochronousPacketsArray);
free(transfer_priv->IsochronousResultsArray);
return LIBUSB_ERROR_IO;
}
transfer_priv->pollable_fd = wfd;
usbi_add_pollfd(ctx, transfer_priv->pollable_fd.fd, IS_XFERIN(transfer) ? POLLIN : POLLOUT);
return LIBUSB_SUCCESS;
}
