1 files changed, 138 insertions, 0 deletions
diff --git a/at91lib/usb/common/core/USBGenericRequest.c b/at91lib/usb/common/core/USBGenericRequest.c
new file mode 100644
index 0000000..a3bbbfd
--- /dev/null
+++ b/at91lib/usb/common/core/USBGenericRequest.c
@@ -0,0 +1,138 @@
+/* ----------------------------------------------------------------------------
+ *         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.
+ * ----------------------------------------------------------------------------
+ */
+
+/*
+    Title: USBGenericRequest implementation
+
+    About: Purpose
+        Implementation of the USBGenericRequest class.
+*/
+
+//------------------------------------------------------------------------------
+//         Headers
+//------------------------------------------------------------------------------
+
+#include "USBGenericRequest.h"
+
+//------------------------------------------------------------------------------
+//         Exported functions
+//------------------------------------------------------------------------------
+//------------------------------------------------------------------------------
+/// Returns the type of the given request.
+/// \param request Pointer to a USBGenericRequest instance.
+/// \return "USB Request Types"
+//------------------------------------------------------------------------------
+extern unsigned char USBGenericRequest_GetType(const USBGenericRequest *request)
+{
+    return ((request->bmRequestType >> 5) & 0x3);
+}
+
+//------------------------------------------------------------------------------
+/// Returns the request code of the given request.
+/// \param request Pointer to a USBGenericRequest instance.
+/// \return Request code.
+/// \sa "USB Request Codes"
+//------------------------------------------------------------------------------
+unsigned char USBGenericRequest_GetRequest(const USBGenericRequest *request)
+{
+    return request->bRequest;
+}
+
+//------------------------------------------------------------------------------
+/// Returns the wValue field of the given request.
+/// \param request - Pointer to a USBGenericRequest instance.
+/// \return Request value.
+//------------------------------------------------------------------------------
+unsigned short USBGenericRequest_GetValue(const USBGenericRequest *request)
+{
+    return request->wValue;
+}
+
+//------------------------------------------------------------------------------
+/// Returns the wIndex field of the given request.
+/// \param request Pointer to a USBGenericRequest instance.
+/// \return Request index;
+//------------------------------------------------------------------------------
+unsigned short USBGenericRequest_GetIndex(const USBGenericRequest *request)
+{
+    return request->wIndex;
+}
+
+//------------------------------------------------------------------------------
+/// Returns the expected length of the data phase following a request.
+/// \param request Pointer to a USBGenericRequest instance.
+/// \return Length of data phase.
+//------------------------------------------------------------------------------
+unsigned short USBGenericRequest_GetLength(const USBGenericRequest *request)
+{
+    return request->wLength;
+}
+
+//------------------------------------------------------------------------------
+/// Returns the endpoint number targetted by a given request.
+/// \param request Pointer to a USBGenericRequest instance.
+/// \return Endpoint number.
+//------------------------------------------------------------------------------
+unsigned char USBGenericRequest_GetEndpointNumber(
+    const USBGenericRequest *request)
+{
+    return USBGenericRequest_GetIndex(request) & 0xF;
+}
+
+//------------------------------------------------------------------------------
+/// Returns the intended recipient of a given request.
+/// \param request Pointer to a USBGenericRequest instance.
+/// \return Request recipient.
+/// \sa "USB Request Recipients"
+//------------------------------------------------------------------------------
+unsigned char USBGenericRequest_GetRecipient(const USBGenericRequest *request)
+{
+    // Recipient is in bits [0..4] of the bmRequestType field
+    return request->bmRequestType & 0xF;
+}
+
+//------------------------------------------------------------------------------
+/// Returns the direction of the data transfer following the given request.
+/// \param request Pointer to a USBGenericRequest instance.
+/// \return Transfer direction.
+/// \sa "USB Request Directions"
+//------------------------------------------------------------------------------
+unsigned char USBGenericRequest_GetDirection(const USBGenericRequest *request)
+{
+    // Transfer direction is located in bit D7 of the bmRequestType field
+    if ((request->bmRequestType & 0x80) != 0) {
+
+        return USBGenericRequest_IN;
+    }
+    else {
+
+        return USBGenericRequest_OUT;
+    }
+}
+