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path: root/digital/avr/modules/usb/lufa/LUFA/Drivers/USB/Class/ConfigDescriptor.c
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Diffstat (limited to 'digital/avr/modules/usb/lufa/LUFA/Drivers/USB/Class/ConfigDescriptor.c')
-rw-r--r--digital/avr/modules/usb/lufa/LUFA/Drivers/USB/Class/ConfigDescriptor.c135
1 files changed, 135 insertions, 0 deletions
diff --git a/digital/avr/modules/usb/lufa/LUFA/Drivers/USB/Class/ConfigDescriptor.c b/digital/avr/modules/usb/lufa/LUFA/Drivers/USB/Class/ConfigDescriptor.c
new file mode 100644
index 00000000..5a40705c
--- /dev/null
+++ b/digital/avr/modules/usb/lufa/LUFA/Drivers/USB/Class/ConfigDescriptor.c
@@ -0,0 +1,135 @@
+/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2009.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.fourwalledcubicle.com
+*/
+
+/*
+ Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, and distribute this software
+ and its documentation for any purpose and without fee is hereby
+ granted, provided that the above copyright notice appear in all
+ copies and that both that the copyright notice and this
+ permission notice and warranty disclaimer appear in supporting
+ documentation, and that the name of the author not be used in
+ advertising or publicity pertaining to distribution of the
+ software without specific, written prior permission.
+
+ The author disclaim all warranties with regard to this
+ software, including all implied warranties of merchantability
+ and fitness. In no event shall the author be liable for any
+ special, indirect or consequential damages or any damages
+ whatsoever resulting from loss of use, data or profits, whether
+ in an action of contract, negligence or other tortious action,
+ arising out of or in connection with the use or performance of
+ this software.
+*/
+
+#include "ConfigDescriptor.h"
+
+uint8_t USB_Host_GetDeviceConfigDescriptor(uint16_t* const ConfigSizePtr, void* BufferPtr)
+{
+ uint8_t ErrorCode;
+
+ USB_HostRequest = (USB_Host_Request_Header_t)
+ {
+ bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
+ bRequest: REQ_GetDescriptor,
+ wValue: (DTYPE_Configuration << 8),
+ wIndex: 0,
+ wLength: sizeof(USB_Descriptor_Configuration_Header_t),
+ };
+
+ if (BufferPtr == NULL)
+ {
+ uint8_t ConfigHeader[sizeof(USB_Descriptor_Configuration_Header_t)];
+
+ ErrorCode = USB_Host_SendControlRequest(ConfigHeader);
+
+ #if defined(USE_NONSTANDARD_DESCRIPTOR_NAMES)
+ *ConfigSizePtr = DESCRIPTOR_CAST(ConfigHeader, USB_Descriptor_Configuration_Header_t).TotalConfigurationSize;
+ #else
+ *ConfigSizePtr = DESCRIPTOR_CAST(ConfigHeader, USB_Descriptor_Configuration_Header_t).wTotalLength;
+ #endif
+ }
+ else
+ {
+ USB_HostRequest.wLength = *ConfigSizePtr;
+
+ ErrorCode = USB_Host_SendControlRequest(BufferPtr);
+ }
+
+ return ErrorCode;
+}
+
+void USB_Host_GetNextDescriptorOfType(uint16_t* const BytesRem,
+ uint8_t** const CurrConfigLoc,
+ const uint8_t Type)
+{
+ while (*BytesRem)
+ {
+ USB_Host_GetNextDescriptor(BytesRem, CurrConfigLoc);
+
+ if (DESCRIPTOR_TYPE(*CurrConfigLoc) == Type)
+ return;
+ }
+}
+
+void USB_Host_GetNextDescriptorOfTypeBefore(uint16_t* const BytesRem,
+ uint8_t** const CurrConfigLoc,
+ const uint8_t Type,
+ const uint8_t BeforeType)
+{
+ while (*BytesRem)
+ {
+ USB_Host_GetNextDescriptor(BytesRem, CurrConfigLoc);
+
+ if (DESCRIPTOR_TYPE(*CurrConfigLoc) == Type)
+ {
+ return;
+ }
+ else if (DESCRIPTOR_TYPE(*CurrConfigLoc) == BeforeType)
+ {
+ *BytesRem = 0;
+ return;
+ }
+ }
+}
+
+void USB_Host_GetNextDescriptorOfTypeAfter(uint16_t* const BytesRem,
+ uint8_t** const CurrConfigLoc,
+ const uint8_t Type,
+ const uint8_t AfterType)
+{
+ USB_Host_GetNextDescriptorOfType(BytesRem, CurrConfigLoc, AfterType);
+
+ if (*BytesRem)
+ USB_Host_GetNextDescriptorOfType(BytesRem, CurrConfigLoc, Type);
+}
+
+uint8_t USB_Host_GetNextDescriptorComp_P(uint16_t* BytesRem, uint8_t** CurrConfigLoc,
+ uint8_t (* const ComparatorRoutine)(void*))
+{
+ uint8_t ErrorCode;
+
+ while (*BytesRem)
+ {
+ uint8_t** PrevDescLoc = CurrConfigLoc;
+ uint16_t PrevBytesRem = *BytesRem;
+
+ USB_Host_GetNextDescriptor(BytesRem, CurrConfigLoc);
+
+ if ((ErrorCode = ComparatorRoutine(*CurrConfigLoc)) != Descriptor_Search_NotFound)
+ {
+ CurrConfigLoc = PrevDescLoc;
+ *BytesRem = PrevBytesRem;
+
+ return ErrorCode;
+ }
+ }
+
+ return Descriptor_Search_Comp_EndOfDescriptor;
+}