diff options
| author | Dean Camera <dean@fourwalledcubicle.com> | 2009-05-22 05:23:00 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2009-05-22 05:23:00 +0000 |
| commit | d0806c817cbf0c1b5c5362d1577eac6075c94dfc (patch) | |
| tree | 1be89ddcaeceee05a5f230bbeb5784ee4c85193b /LUFA/Drivers/USB/HighLevel/ConfigDescriptor.c | |
| parent | b3a4d8512bcaf0feba16a3cbeeaabfcfeb9cf051 (diff) | |
| download | lufa-d0806c817cbf0c1b5c5362d1577eac6075c94dfc.tar.gz lufa-d0806c817cbf0c1b5c5362d1577eac6075c94dfc.tar.bz2 lufa-d0806c817cbf0c1b5c5362d1577eac6075c94dfc.zip | |
Deleted StdDescriptors.c, renamed USB_GetDescriptor() to CALLBACK_USB_GetDescriptor, moved ConfigDescriptor.c/.h from the LUFA/Drivers/USB/Class/ directory to LUFA/Drivers/USB/HighLevel/ in preperation for the new USB class APIs.
Diffstat (limited to 'LUFA/Drivers/USB/HighLevel/ConfigDescriptor.c')
| -rw-r--r-- | LUFA/Drivers/USB/HighLevel/ConfigDescriptor.c | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/HighLevel/ConfigDescriptor.c b/LUFA/Drivers/USB/HighLevel/ConfigDescriptor.c new file mode 100644 index 000000000..bbe258b3a --- /dev/null +++ b/LUFA/Drivers/USB/HighLevel/ConfigDescriptor.c @@ -0,0 +1,141 @@ +/*
+ 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"
+
+#if defined(USB_CAN_BE_HOST)
+uint8_t USB_GetDeviceConfigDescriptor(uint16_t* const ConfigSizePtr, void* BufferPtr)
+{
+ uint8_t ErrorCode;
+
+ USB_ControlRequest = (USB_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),
+ };
+
+ Pipe_SelectPipe(PIPE_CONTROLPIPE);
+
+ 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_ControlRequest.wLength = *ConfigSizePtr;
+
+ ErrorCode = USB_Host_SendControlRequest(BufferPtr);
+ }
+
+ return ErrorCode;
+}
+#endif
+
+void USB_GetNextDescriptorOfType(uint16_t* const BytesRem,
+ uint8_t** const CurrConfigLoc,
+ const uint8_t Type)
+{
+ while (*BytesRem)
+ {
+ USB_GetNextDescriptor(BytesRem, CurrConfigLoc);
+
+ if (DESCRIPTOR_TYPE(*CurrConfigLoc) == Type)
+ return;
+ }
+}
+
+void USB_GetNextDescriptorOfTypeBefore(uint16_t* const BytesRem,
+ uint8_t** const CurrConfigLoc,
+ const uint8_t Type,
+ const uint8_t BeforeType)
+{
+ while (*BytesRem)
+ {
+ USB_GetNextDescriptor(BytesRem, CurrConfigLoc);
+
+ if (DESCRIPTOR_TYPE(*CurrConfigLoc) == Type)
+ {
+ return;
+ }
+ else if (DESCRIPTOR_TYPE(*CurrConfigLoc) == BeforeType)
+ {
+ *BytesRem = 0;
+ return;
+ }
+ }
+}
+
+void USB_GetNextDescriptorOfTypeAfter(uint16_t* const BytesRem,
+ uint8_t** const CurrConfigLoc,
+ const uint8_t Type,
+ const uint8_t AfterType)
+{
+ USB_GetNextDescriptorOfType(BytesRem, CurrConfigLoc, AfterType);
+
+ if (*BytesRem)
+ USB_GetNextDescriptorOfType(BytesRem, CurrConfigLoc, Type);
+}
+
+uint8_t USB_GetNextDescriptorComp(uint16_t* BytesRem, uint8_t** CurrConfigLoc, ConfigComparatorPtr_t ComparatorRoutine)
+{
+ uint8_t ErrorCode;
+
+ while (*BytesRem)
+ {
+ uint8_t* PrevDescLoc = *CurrConfigLoc;
+ uint16_t PrevBytesRem = *BytesRem;
+
+ USB_GetNextDescriptor(BytesRem, CurrConfigLoc);
+
+ if ((ErrorCode = ComparatorRoutine(*CurrConfigLoc)) != DESCRIPTOR_SEARCH_NotFound)
+ {
+ if (ErrorCode == DESCRIPTOR_SEARCH_Fail)
+ {
+ *CurrConfigLoc = PrevDescLoc;
+ *BytesRem = PrevBytesRem;
+ }
+
+ return ErrorCode;
+ }
+ }
+
+ return DESCRIPTOR_SEARCH_COMP_EndOfDescriptor;
+}
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