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131/*
* PHDC routines of Cypress USB Serial
* Copyright (C) 2013 Cypress Semiconductor
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "CyUSBCommon.h"
/*
PHDC clear feature
*/
CY_RETURN_STATUS CyPhdcClrFeature (CY_HANDLE handle)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
bmRequestType = CY_CLASS_INTERFACE_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_PHDC_CLR_FEATURE;
wValue = CY_PHDC_CLR_FEATURE_WVALUE;
wIndex = device->interfaceNum;
wLength = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus == 0)
return CY_SUCCESS;
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error ..function is %s \n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function %s ...libusb error is %d!\n", __func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
return CY_SUCCESS;
}
/*
PHDC set feature
*/
CY_RETURN_STATUS CyPhdcSetFeature (CY_HANDLE handle)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus, ioTimeout = CY_USB_SERIAL_TIMEOUT ;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
bmRequestType = CY_CLASS_INTERFACE_REQUEST_HOST_TO_DEVICE;
bmRequest = CY_PHDC_SET_FEATURE;
wValue = CY_PHDC_SET_FEATURE_WVALUE;
wIndex = device->interfaceNum;
wLength = 0;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, NULL, wLength, ioTimeout);
if (rStatus == 0)
return CY_SUCCESS;
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error ..function is %s \n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function %s ...libusb error is %d!\n", __func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}
/*
PHDC clear feature
*/
CY_RETURN_STATUS CyPhdcGetStatus (CY_HANDLE handle, UINT16 *dataStatus)
{
UINT16 wValue, wIndex, wLength;
UINT8 bmRequestType, bmRequest;
int rStatus;
UINT32 ioTimeout = CY_USB_SERIAL_TIMEOUT ;
CY_DEVICE *device;
libusb_device_handle *devHandle;
if (handle == NULL)
return CY_ERROR_INVALID_HANDLE;
device = (CY_DEVICE *)handle;
devHandle = device->devHandle;
bmRequestType = CY_CLASS_INTERFACE_REQUEST_DEVICE_TO_HOST;
bmRequest = CY_PHDC_GET_DATA_STATUS;
wValue = 0x00;
wIndex = device->interfaceNum;
wLength = CY_PHDC_GET_STATUS_LEN;
rStatus = libusb_control_transfer (devHandle, bmRequestType, bmRequest,
wValue, wIndex, (unsigned char*)dataStatus, wLength, ioTimeout);
if (rStatus > 0)
return CY_SUCCESS;
else if (rStatus == LIBUSB_ERROR_TIMEOUT){
CY_DEBUG_PRINT_ERROR ("CY:Time out error ..function is %s \n", __func__);
return CY_ERROR_IO_TIMEOUT;
}
else {
CY_DEBUG_PRINT_ERROR ("CY: Error in function %s ...libusb error is %d!\n", __func__, rStatus);
return CY_ERROR_REQUEST_FAILED;
}
}