diff options
Diffstat (limited to 'at91lib/usb/device/core/USBDDriver.c')
| -rw-r--r-- | at91lib/usb/device/core/USBDDriver.c | 682 |
1 files changed, 682 insertions, 0 deletions
diff --git a/at91lib/usb/device/core/USBDDriver.c b/at91lib/usb/device/core/USBDDriver.c new file mode 100644 index 0000000..c2a8abd --- /dev/null +++ b/at91lib/usb/device/core/USBDDriver.c @@ -0,0 +1,682 @@ +/* ----------------------------------------------------------------------------
+ * ATMEL Microcontroller Software Support
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2008, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaimer below.
+ *
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ----------------------------------------------------------------------------
+ */
+
+//------------------------------------------------------------------------------
+// Headers
+//------------------------------------------------------------------------------
+
+#include "USBDDriver.h"
+#include "USBDDriverCallbacks.h"
+#include "USBD.h"
+#include <board.h>
+#include <utility/trace.h>
+#include <usb/common/core/USBGenericDescriptor.h>
+#include <usb/common/core/USBDeviceDescriptor.h>
+#include <usb/common/core/USBConfigurationDescriptor.h>
+#include <usb/common/core/USBDeviceQualifierDescriptor.h>
+#include <usb/common/core/USBEndpointDescriptor.h>
+#include <usb/common/core/USBFeatureRequest.h>
+#include <usb/common/core/USBSetAddressRequest.h>
+#include <usb/common/core/USBGetDescriptorRequest.h>
+#include <usb/common/core/USBSetConfigurationRequest.h>
+#include <usb/common/core/USBInterfaceRequest.h>
+
+#include <string.h>
+
+//------------------------------------------------------------------------------
+// Local functions
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+/// Configures the device by setting it into the Configured state and
+/// initializing all endpoints.
+/// \param pDriver Pointer to a USBDDriver instance.
+/// \param cfgnum Configuration number to set.
+//------------------------------------------------------------------------------
+static void SetConfiguration(USBDDriver *pDriver, unsigned char cfgnum)
+{
+ USBEndpointDescriptor *pEndpoints[BOARD_USB_NUMENDPOINTS+1];
+ const USBConfigurationDescriptor *pConfiguration;
+
+ // Use different descriptor depending on device speed
+ if (USBD_IsHighSpeed()) {
+
+ pConfiguration = pDriver->pDescriptors->pHsConfiguration;
+ }
+ else {
+
+ pConfiguration = pDriver->pDescriptors->pFsConfiguration;
+ }
+
+ // Set & save the desired configuration
+ USBD_SetConfiguration(cfgnum);
+ pDriver->cfgnum = cfgnum;
+
+ // If the configuration is not 0, configure endpoints
+ if (cfgnum != 0) {
+
+ // Parse configuration to get endpoint descriptors
+ USBConfigurationDescriptor_Parse(pConfiguration, 0, pEndpoints, 0);
+
+ // Configure endpoints
+ int i = 0;
+ while (pEndpoints[i] != 0) {
+
+ USBD_ConfigureEndpoint(pEndpoints[i]);
+ i++;
+ }
+ }
+ // Should be done before send the ZLP
+ USBDDriverCallbacks_ConfigurationChanged(cfgnum);
+
+ // Acknowledge the request
+ USBD_Write(0, // Endpoint #0
+ 0, // No data buffer
+ 0, // No data buffer
+ (TransferCallback) 0,
+ (void *) 0);
+}
+
+//------------------------------------------------------------------------------
+/// Sends the current configuration number to the host.
+/// \param pDriver Pointer to a USBDDriver instance.
+//------------------------------------------------------------------------------
+static void GetConfiguration(const USBDDriver *pDriver)
+{
+ USBD_Write(0, &(pDriver->cfgnum), 1, 0, 0);
+}
+
+//------------------------------------------------------------------------------
+/// Sends the current status of the device to the host.
+/// \param pDriver Pointer to a USBDDriver instance.
+//------------------------------------------------------------------------------
+static void GetDeviceStatus(const USBDDriver *pDriver)
+{
+ unsigned short data = 0;
+ const USBConfigurationDescriptor *pConfiguration;
+
+ // Use different configuration depending on device speed
+ if (USBD_IsHighSpeed()) {
+
+ pConfiguration = pDriver->pDescriptors->pHsConfiguration;
+ }
+ else {
+
+ pConfiguration = pDriver->pDescriptors->pFsConfiguration;
+ }
+
+ // Check current configuration for power mode (if device is configured)
+ if (pDriver->cfgnum != 0) {
+
+ if (USBConfigurationDescriptor_IsSelfPowered(pConfiguration)) {
+
+ data |= 1;
+ }
+ }
+
+ // Check if remote wake-up is enabled
+ if (pDriver->isRemoteWakeUpEnabled) {
+
+ data |= 2;
+ }
+
+ // Send the device status
+ USBD_Write(0, &data, 2, 0, 0);
+}
+
+//------------------------------------------------------------------------------
+/// Sends the current status of an endpoints to the USB host.
+/// \param bEndpoint Endpoint number.
+//------------------------------------------------------------------------------
+static void GetEndpointStatus(unsigned char bEndpoint)
+{
+ unsigned short data = 0;
+
+ // Check if the endpoint exists
+ if (bEndpoint > BOARD_USB_NUMENDPOINTS) {
+
+ USBD_Stall(0);
+ }
+ else {
+
+ // Check if the endpoint if currently halted
+ if (USBD_IsHalted(bEndpoint)) {
+
+ data = 1;
+ }
+
+ // Send the endpoint status
+ USBD_Write(0, &data, 2, 0, 0);
+ }
+}
+
+//------------------------------------------------------------------------------
+/// Sends the requested USB descriptor to the host if available, or STALLs the
+/// request.
+/// \param pDriver Pointer to a USBDDriver instance.
+/// \param type Type of the requested descriptor
+/// \param index Index of the requested descriptor.
+/// \param length Maximum number of bytes to return.
+//------------------------------------------------------------------------------
+static void GetDescriptor(
+ const USBDDriver *pDriver,
+ unsigned char type,
+ unsigned char index,
+ unsigned int length)
+{
+ const USBDeviceDescriptor *pDevice;
+ const USBConfigurationDescriptor *pConfiguration;
+ const USBDeviceQualifierDescriptor *pQualifier;
+ const USBConfigurationDescriptor *pOtherSpeed;
+ const USBGenericDescriptor **pStrings =
+ (const USBGenericDescriptor **) pDriver->pDescriptors->pStrings;
+ unsigned char numStrings = pDriver->pDescriptors->numStrings;
+ const USBGenericDescriptor *pString;
+
+ // Use different set of descriptors depending on device speed
+ if (USBD_IsHighSpeed()) {
+
+ TRACE_DEBUG("HS ");
+ pDevice = pDriver->pDescriptors->pHsDevice;
+ pConfiguration = pDriver->pDescriptors->pHsConfiguration;
+ pQualifier = pDriver->pDescriptors->pHsQualifier;
+ pOtherSpeed = pDriver->pDescriptors->pHsOtherSpeed;
+ }
+ else {
+
+ TRACE_DEBUG("FS ");
+ pDevice = pDriver->pDescriptors->pFsDevice;
+ pConfiguration = pDriver->pDescriptors->pFsConfiguration;
+ pQualifier = pDriver->pDescriptors->pFsQualifier;
+ pOtherSpeed = pDriver->pDescriptors->pFsOtherSpeed;
+ }
+
+ // Check the descriptor type
+ switch (type) {
+
+ case USBGenericDescriptor_DEVICE:
+ TRACE_INFO_WP("Dev ");
+
+ // Adjust length and send descriptor
+ if (length > USBGenericDescriptor_GetLength((USBGenericDescriptor *) pDevice)) {
+
+ length = USBGenericDescriptor_GetLength((USBGenericDescriptor *) pDevice);
+ }
+ USBD_Write(0, pDevice, length, 0, 0);
+ break;
+
+ case USBGenericDescriptor_CONFIGURATION:
+ TRACE_INFO_WP("Cfg ");
+
+ // Adjust length and send descriptor
+ if (length > USBConfigurationDescriptor_GetTotalLength(pConfiguration)) {
+
+ length = USBConfigurationDescriptor_GetTotalLength(pConfiguration);
+ }
+ USBD_Write(0, pConfiguration, length, 0, 0);
+ break;
+
+ case USBGenericDescriptor_DEVICEQUALIFIER:
+ TRACE_INFO_WP("Qua ");
+
+ // Check if descriptor exists
+ if (!pQualifier) {
+
+ USBD_Stall(0);
+ }
+ else {
+
+ // Adjust length and send descriptor
+ if (length > USBGenericDescriptor_GetLength((USBGenericDescriptor *) pQualifier)) {
+
+ length = USBGenericDescriptor_GetLength((USBGenericDescriptor *) pQualifier);
+ }
+ USBD_Write(0, pQualifier, length, 0, 0);
+ }
+ break;
+
+ case USBGenericDescriptor_OTHERSPEEDCONFIGURATION:
+ TRACE_INFO_WP("OSC ");
+
+ // Check if descriptor exists
+ if (!pOtherSpeed) {
+
+ USBD_Stall(0);
+ }
+ else {
+
+ // Adjust length and send descriptor
+ if (length > USBConfigurationDescriptor_GetTotalLength(pOtherSpeed)) {
+
+ length = USBConfigurationDescriptor_GetTotalLength(pOtherSpeed);
+ }
+ USBD_Write(0, pOtherSpeed, length, 0, 0);
+ }
+ break;
+
+ case USBGenericDescriptor_STRING:
+ TRACE_INFO_WP("Str%d ", index);
+
+ // Check if descriptor exists
+ if (index > numStrings) {
+
+ USBD_Stall(0);
+ }
+ else {
+
+ pString = pStrings[index];
+
+ // Adjust length and send descriptor
+ if (length > USBGenericDescriptor_GetLength(pString)) {
+
+ length = USBGenericDescriptor_GetLength(pString);
+ }
+ USBD_Write(0, pString, length, 0, 0);
+ }
+ break;
+
+ default:
+ TRACE_WARNING(
+ "USBDDriver_GetDescriptor: Unknown descriptor type (%d)\n\r",
+ type);
+ USBD_Stall(0);
+ }
+}
+
+//------------------------------------------------------------------------------
+/// Sets the active setting of the given interface if the configuration supports
+/// it; otherwise, the control pipe is STALLed. If the setting of an interface
+/// changes.
+/// \parma pDriver Pointer to a USBDDriver instance.
+/// \parma infnum Interface number.
+/// \parma setting New active setting for the interface.
+//------------------------------------------------------------------------------
+static void SetInterface(
+ USBDDriver *pDriver,
+ unsigned char infnum,
+ unsigned char setting)
+{
+ // Make sure alternate settings are supported
+ if (!pDriver->pInterfaces) {
+
+ USBD_Stall(0);
+ }
+ else {
+
+ // Change the current setting of the interface and trigger the callback
+ // if necessary
+ if (pDriver->pInterfaces[infnum] != setting) {
+
+ pDriver->pInterfaces[infnum] = setting;
+ USBDDriverCallbacks_InterfaceSettingChanged(infnum, setting);
+ }
+
+ // Acknowledge the request
+ USBD_Write(0, 0, 0, 0, 0);
+ }
+}
+
+//------------------------------------------------------------------------------
+/// Sends the currently active setting of the given interface to the USB
+/// host. If alternate settings are not supported, this function STALLs the
+/// control pipe.
+/// \param pDriver Pointer to a USBDDriver instance.
+/// \param infnum Interface number.
+//------------------------------------------------------------------------------
+static void GetInterface(
+ const USBDDriver *pDriver,
+ unsigned char infnum)
+{
+ // Make sure alternate settings are supported, or STALL the control pipe
+ if (!pDriver->pInterfaces) {
+
+ USBD_Stall(0);
+ }
+ else {
+
+ // Sends the current interface setting to the host
+ USBD_Write(0, &(pDriver->pInterfaces[infnum]), 1, 0, 0);
+ }
+}
+
+#ifdef BOARD_USB_UDPHS
+//------------------------------------------------------------------------------
+// Performs the selected test on the USB device (high-speed only).
+// \param test Test selector value.
+//------------------------------------------------------------------------------
+static void USBDDriver_Test(unsigned char test)
+{
+ TRACE_DEBUG("UDPHS_Test\n\r");
+
+ // the lower byte of wIndex must be zero
+ // the most significant byte of wIndex is used to specify the specific test mode
+ switch (test) {
+ case USBFeatureRequest_TESTPACKET:
+ //Test mode Test_Packet:
+ //Upon command, a port must repetitively transmit the following test packet until
+ //the exit action is taken. This enables the testing of rise and fall times, eye
+ //patterns, jitter, and any other dynamic waveform specifications.
+ //The test packet is made up by concatenating the following strings.
+ //(Note: For J/K NRZI data, and for NRZ data, the bit on the left is the first one
+ //transmitted. “S” indicates that a bit stuff occurs, which inserts an “extra” NRZI data bit.
+ //“* N” is used to indicate N occurrences of a string of bits or symbols.)
+ //A port in Test_Packet mode must send this packet repetitively. The inter-packet timing
+ //must be no less than the minimum allowable inter-packet gap as defined in Section 7.1.18 and
+ //no greater than 125 us.
+ // Send ZLP
+ USBD_Test(USBFeatureRequest_TESTSENDZLP);
+ // Tst PACKET
+ USBD_Test(USBFeatureRequest_TESTPACKET);
+ while (1);
+ break;
+
+ case USBFeatureRequest_TESTJ:
+ //Test mode Test_J:
+ //Upon command, a port’s transceiver must enter the high-speed J state and remain in that
+ //state until the exit action is taken. This enables the testing of the high output drive
+ //level on the D+ line.
+ // Send ZLP
+ USBD_Test(USBFeatureRequest_TESTSENDZLP);
+ // Tst J
+ USBD_Test(USBFeatureRequest_TESTJ);
+ while (1);
+ break;
+
+ case USBFeatureRequest_TESTK:
+ //Test mode Test_K:
+ //Upon command, a port’s transceiver must enter the high-speed K state and remain in
+ //that state until the exit action is taken. This enables the testing of the high output drive
+ //level on the D- line.
+ // Send a ZLP
+ USBD_Test(USBFeatureRequest_TESTSENDZLP);
+ USBD_Test(USBFeatureRequest_TESTK);
+ while (1);
+ break;
+
+ case USBFeatureRequest_TESTSE0NAK:
+ //Test mode Test_SE0_NAK:
+ //Upon command, a port’s transceiver must enter the high-speed receive mode
+ //and remain in that mode until the exit action is taken. This enables the testing
+ //of output impedance, low level output voltage, and loading characteristics.
+ //In addition, while in this mode, upstream facing ports (and only upstream facing ports)
+ //must respond to any IN token packet with a NAK handshake (only if the packet CRC is
+ //determined to be correct) within the normal allowed device response time. This enables testing of
+ //the device squelch level circuitry and, additionally, provides a general purpose stimulus/response
+ //test for basic functional testing.
+ USBD_Test(USBFeatureRequest_TESTSE0NAK);
+ // Send a ZLP
+ USBD_Test(USBFeatureRequest_TESTSENDZLP);
+ while (1);
+ break;
+
+ default:
+ USBD_Stall( 0 );
+ break;
+
+ }
+ // The exit action is to power cycle the device.
+ // The device must be disconnected from the host
+}
+#endif
+
+//------------------------------------------------------------------------------
+// Exported functions
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+/// Initializes a USBDDriver instance with a list of descriptors. If
+/// interfaces can have multiple alternate settings, an array to store the
+/// current setting for each interface must be provided.
+/// \param pDriver Pointer to a USBDDriver instance.
+/// \param pDescriptors Pointer to a USBDDriverDescriptors instance.
+/// \param pInterfaces Pointer to an array for storing the current alternate
+/// setting of each interface (optional).
+//------------------------------------------------------------------------------
+void USBDDriver_Initialize(
+ USBDDriver *pDriver,
+ const USBDDriverDescriptors *pDescriptors,
+ unsigned char *pInterfaces)
+{
+
+ pDriver->cfgnum = 0;
+#if (BOARD_USB_BMATTRIBUTES == USBConfigurationDescriptor_SELFPOWERED_RWAKEUP) \
+ || (BOARD_USB_BMATTRIBUTES == USBConfigurationDescriptor_BUSPOWERED_RWAKEUP)
+ pDriver->isRemoteWakeUpEnabled = 1;
+#else
+ pDriver->isRemoteWakeUpEnabled = 0;
+#endif
+
+ pDriver->pDescriptors = pDescriptors;
+ pDriver->pInterfaces = pInterfaces;
+
+ // Initialize interfaces array if not null
+ if (pInterfaces != 0) {
+
+ memset(pInterfaces, sizeof(pInterfaces), 0);
+ }
+}
+
+//------------------------------------------------------------------------------
+/// Handles the given request if it is standard, otherwise STALLs it.
+/// \param pDriver Pointer to a USBDDriver instance.
+/// \param pRequest Pointer to a USBGenericRequest instance.
+//------------------------------------------------------------------------------
+void USBDDriver_RequestHandler(
+ USBDDriver *pDriver,
+ const USBGenericRequest *pRequest)
+{
+ unsigned char cfgnum;
+ unsigned char infnum;
+ unsigned char eptnum;
+ unsigned char setting;
+ unsigned char type;
+ unsigned char index;
+ unsigned int length;
+ unsigned int address;
+
+ TRACE_INFO_WP("Std ");
+
+ // Check request code
+ switch (USBGenericRequest_GetRequest(pRequest)) {
+
+ case USBGenericRequest_GETDESCRIPTOR:
+ TRACE_INFO_WP("gDesc ");
+
+ // Send the requested descriptor
+ type = USBGetDescriptorRequest_GetDescriptorType(pRequest);
+ index = USBGetDescriptorRequest_GetDescriptorIndex(pRequest);
+ length = USBGenericRequest_GetLength(pRequest);
+ GetDescriptor(pDriver, type, index, length);
+ break;
+
+ case USBGenericRequest_SETADDRESS:
+ TRACE_INFO_WP("sAddr ");
+
+ // Sends a zero-length packet and then set the device address
+ address = USBSetAddressRequest_GetAddress(pRequest);
+ USBD_Write(0, 0, 0, (TransferCallback) USBD_SetAddress, (void *) address);
+ break;
+
+ case USBGenericRequest_SETCONFIGURATION:
+ TRACE_INFO_WP("sCfg ");
+
+ // Set the requested configuration
+ cfgnum = USBSetConfigurationRequest_GetConfiguration(pRequest);
+ SetConfiguration(pDriver, cfgnum);
+ break;
+
+ case USBGenericRequest_GETCONFIGURATION:
+ TRACE_INFO_WP("gCfg ");
+
+ // Send the current configuration number
+ GetConfiguration(pDriver);
+ break;
+
+ case USBGenericRequest_GETSTATUS:
+ TRACE_INFO_WP("gSta ");
+
+ // Check who is the recipient
+ switch (USBGenericRequest_GetRecipient(pRequest)) {
+
+ case USBGenericRequest_DEVICE:
+ TRACE_INFO_WP("Dev ");
+
+ // Send the device status
+ GetDeviceStatus(pDriver);
+ break;
+
+ case USBGenericRequest_ENDPOINT:
+ TRACE_INFO_WP("Ept ");
+
+ // Send the endpoint status
+ eptnum = USBGenericRequest_GetEndpointNumber(pRequest);
+ GetEndpointStatus(eptnum);
+ break;
+
+ default:
+ TRACE_WARNING(
+ "USBDDriver_RequestHandler: Unknown recipient (%d)\n\r",
+ USBGenericRequest_GetRecipient(pRequest));
+ USBD_Stall(0);
+ }
+ break;
+
+ case USBGenericRequest_CLEARFEATURE:
+ TRACE_INFO_WP("cFeat ");
+
+ // Check which is the requested feature
+ switch (USBFeatureRequest_GetFeatureSelector(pRequest)) {
+
+ case USBFeatureRequest_ENDPOINTHALT:
+ TRACE_INFO_WP("Hlt ");
+
+ // Unhalt endpoint and send a zero-length packet
+ USBD_Unhalt(USBGenericRequest_GetEndpointNumber(pRequest));
+ USBD_Write(0, 0, 0, 0, 0);
+ break;
+
+ case USBFeatureRequest_DEVICEREMOTEWAKEUP:
+ TRACE_INFO_WP("RmWU ");
+
+ // Disable remote wake-up and send a zero-length packet
+ pDriver->isRemoteWakeUpEnabled = 0;
+ USBD_Write(0, 0, 0, 0, 0);
+ break;
+
+ default:
+ TRACE_WARNING(
+ "USBDDriver_RequestHandler: Unknown feature selector (%d)\n\r",
+ USBFeatureRequest_GetFeatureSelector(pRequest));
+ USBD_Stall(0);
+ }
+ break;
+
+ case USBGenericRequest_SETFEATURE:
+ TRACE_INFO_WP("sFeat ");
+
+ // Check which is the selected feature
+ switch (USBFeatureRequest_GetFeatureSelector(pRequest)) {
+
+ case USBFeatureRequest_DEVICEREMOTEWAKEUP:
+ TRACE_INFO_WP("RmWU ");
+
+ // Enable remote wake-up and send a ZLP
+ pDriver->isRemoteWakeUpEnabled = 1;
+ USBD_Write(0, 0, 0, 0, 0);
+ break;
+
+ case USBFeatureRequest_ENDPOINTHALT:
+ TRACE_INFO_WP("Ept ");
+
+ // Halt endpoint
+ USBD_Halt(USBGenericRequest_GetEndpointNumber(pRequest));
+ USBD_Write(0, 0, 0, 0, 0);
+ break;
+
+#if defined(BOARD_USB_UDPHS)
+
+ case USBFeatureRequest_TESTMODE:
+ // 7.1.20 Test Mode Support
+ if ((USBGenericRequest_GetType(pRequest) == USBGenericRequest_DEVICE)
+ && ((USBGenericRequest_GetIndex(pRequest) & 0x000F) == 0)) {
+
+ // Handle test request
+ USBDDriver_Test(USBFeatureRequest_GetTestSelector(pRequest));
+ }
+ else {
+
+ USBD_Stall(0);
+ }
+ break;
+#endif
+
+ default:
+ TRACE_WARNING(
+ "USBDDriver_RequestHandler: Unknown feature selector (%d)\n\r",
+ USBFeatureRequest_GetFeatureSelector(pRequest));
+ USBD_Stall(0);
+ }
+ break;
+
+ case USBGenericRequest_SETINTERFACE:
+ TRACE_INFO_WP("sInterface ");
+
+ infnum = USBInterfaceRequest_GetInterface(pRequest);
+ setting = USBInterfaceRequest_GetAlternateSetting(pRequest);
+ SetInterface(pDriver, infnum, setting);
+ break;
+
+ case USBGenericRequest_GETINTERFACE:
+ TRACE_INFO_WP("gInterface ");
+
+ infnum = USBInterfaceRequest_GetInterface(pRequest);
+ GetInterface(pDriver, infnum);
+ break;
+
+ default:
+ TRACE_WARNING(
+ "USBDDriver_RequestHandler: Unknown request code (%d)\n\r",
+ USBGenericRequest_GetRequest(pRequest));
+ USBD_Stall(0);
+ }
+}
+
+
+//------------------------------------------------------------------------------
+/// Test if RemoteWakeUP feature is enabled
+/// \param pDriver Pointer to an USBDDriver instance.
+/// \return 1 if remote wake up has been enabled by the host; otherwise, returns
+/// 0
+//------------------------------------------------------------------------------
+unsigned char USBDDriver_IsRemoteWakeUpEnabled(const USBDDriver *pDriver)
+{
+ return pDriver->isRemoteWakeUpEnabled;
+}
+
+
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