1 files changed, 72 insertions, 0 deletions
diff --git a/at91lib/usb/common/core/USBGetDescriptorRequest.c b/at91lib/usb/common/core/USBGetDescriptorRequest.c
new file mode 100644
index 0000000..2937929
--- /dev/null
+++ b/at91lib/usb/common/core/USBGetDescriptorRequest.c
@@ -0,0 +1,72 @@
+/* ----------------------------------------------------------------------------
+ *         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: USBGetDescriptorRequest implementation
+
+    About: Purpose
+        Implementation of the USBGetDescriptorRequest class.
+*/
+
+//------------------------------------------------------------------------------
+//         Headers
+//------------------------------------------------------------------------------
+
+#include "USBGetDescriptorRequest.h"
+
+//------------------------------------------------------------------------------
+//         Exported functions
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+/// Returns the type of the descriptor requested by the host given the
+/// corresponding GET_DESCRIPTOR request.
+/// \param request Pointer to a USBGenericDescriptor instance.
+/// \return Type of the requested descriptor.
+//------------------------------------------------------------------------------
+unsigned char USBGetDescriptorRequest_GetDescriptorType(
+    const USBGenericRequest *request)
+{
+    // Requested descriptor type is in the high-byte of the wValue field
+    return (USBGenericRequest_GetValue(request) >> 8) & 0xFF;
+}
+
+//------------------------------------------------------------------------------
+/// Returns the index of the requested descriptor, given the corresponding
+/// GET_DESCRIPTOR request.
+/// \param request Pointer to a USBGenericDescriptor instance.
+/// \return Index of the requested descriptor.
+//------------------------------------------------------------------------------
+unsigned char USBGetDescriptorRequest_GetDescriptorIndex(
+    const USBGenericRequest *request)
+{
+    // Requested descriptor index if in the low byte of the wValue field
+    return USBGenericRequest_GetValue(request) & 0xFF;
+}
+