diff options
Diffstat (limited to 'LUFA/Drivers/USB/HighLevel/DeviceStandardReq.c')
| -rw-r--r-- | LUFA/Drivers/USB/HighLevel/DeviceStandardReq.c | 382 |
1 files changed, 382 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/HighLevel/DeviceStandardReq.c b/LUFA/Drivers/USB/HighLevel/DeviceStandardReq.c new file mode 100644 index 0000000..a27151e --- /dev/null +++ b/LUFA/Drivers/USB/HighLevel/DeviceStandardReq.c @@ -0,0 +1,382 @@ +/*
+ LUFA Library
+ Copyright (C) Dean Camera, 2010.
+
+ dean [at] fourwalledcubicle [dot] com
+ www.lufa-lib.org
+*/
+
+/*
+ Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+ Permission to use, copy, modify, distribute, and sell this
+ software and its documentation for any purpose is hereby granted
+ without fee, 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.
+*/
+
+#define __INCLUDE_FROM_USB_DRIVER
+#include "USBMode.h"
+
+#if defined(USB_CAN_BE_DEVICE)
+
+#define __INCLUDE_FROM_DEVICESTDREQ_C
+#include "DeviceStandardReq.h"
+
+uint8_t USB_ConfigurationNumber;
+
+#if !defined(NO_DEVICE_SELF_POWER)
+bool USB_CurrentlySelfPowered;
+#endif
+
+#if !defined(NO_DEVICE_REMOTE_WAKEUP)
+bool USB_RemoteWakeupEnabled;
+#endif
+
+void USB_Device_ProcessControlRequest(void)
+{
+ uint8_t* RequestHeader = (uint8_t*)&USB_ControlRequest;
+
+ for (uint8_t RequestHeaderByte = 0; RequestHeaderByte < sizeof(USB_Request_Header_t); RequestHeaderByte++)
+ *(RequestHeader++) = Endpoint_Read_Byte();
+
+ EVENT_USB_Device_ControlRequest();
+
+ if (Endpoint_IsSETUPReceived())
+ {
+ uint8_t bmRequestType = USB_ControlRequest.bmRequestType;
+
+ switch (USB_ControlRequest.bRequest)
+ {
+ case REQ_GetStatus:
+ if ((bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE)) ||
+ (bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_ENDPOINT)))
+ {
+ USB_Device_GetStatus();
+ }
+
+ break;
+ case REQ_ClearFeature:
+ case REQ_SetFeature:
+ if ((bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE)) ||
+ (bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_ENDPOINT)))
+ {
+ USB_Device_ClearSetFeature();
+ }
+
+ break;
+ case REQ_SetAddress:
+ if (bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE))
+ USB_Device_SetAddress();
+
+ break;
+ case REQ_GetDescriptor:
+ if ((bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE)) ||
+ (bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_INTERFACE)))
+ {
+ USB_Device_GetDescriptor();
+ }
+
+ break;
+ case REQ_GetConfiguration:
+ if (bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE))
+ USB_Device_GetConfiguration();
+
+ break;
+ case REQ_SetConfiguration:
+ if (bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_DEVICE))
+ USB_Device_SetConfiguration();
+
+ break;
+ }
+ }
+
+ if (Endpoint_IsSETUPReceived())
+ {
+ Endpoint_StallTransaction();
+ Endpoint_ClearSETUP();
+ }
+}
+
+static void USB_Device_SetAddress(void)
+{
+ uint8_t DeviceAddress = (USB_ControlRequest.wValue & 0x7F);
+
+ ATOMIC_BLOCK(ATOMIC_RESTORESTATE)
+ {
+ Endpoint_ClearSETUP();
+
+ Endpoint_ClearStatusStage();
+
+ while (!(Endpoint_IsINReady()));
+
+ USB_DeviceState = (DeviceAddress) ? DEVICE_STATE_Addressed : DEVICE_STATE_Default;
+
+ USB_Device_SetDeviceAddress(DeviceAddress);
+ }
+}
+
+static void USB_Device_SetConfiguration(void)
+{
+ #if defined(FIXED_NUM_CONFIGURATIONS)
+ if ((uint8_t)USB_ControlRequest.wValue > FIXED_NUM_CONFIGURATIONS)
+ return;
+ #else
+ USB_Descriptor_Device_t* DevDescriptorPtr;
+
+ #if defined(USE_FLASH_DESCRIPTORS)
+ #define MemoryAddressSpace MEMSPACE_FLASH
+ #elif defined(USE_EEPROM_DESCRIPTORS)
+ #define MemoryAddressSpace MEMSPACE_EEPROM
+ #elif defined(USE_SRAM_DESCRIPTORS)
+ #define MemoryAddressSpace MEMSPACE_SRAM
+ #else
+ uint8_t MemoryAddressSpace;
+ #endif
+
+ if (CALLBACK_USB_GetDescriptor((DTYPE_Device << 8), 0, (void*)&DevDescriptorPtr
+ #if !defined(USE_FLASH_DESCRIPTORS) && !defined(USE_EEPROM_DESCRIPTORS) && !defined(USE_RAM_DESCRIPTORS)
+ , &MemoryAddressSpace
+ #endif
+ ) == NO_DESCRIPTOR)
+ {
+ return;
+ }
+
+ if (MemoryAddressSpace == MEMSPACE_FLASH)
+ {
+ if (((uint8_t)USB_ControlRequest.wValue > pgm_read_byte(&DevDescriptorPtr->NumberOfConfigurations)))
+ return;
+ }
+ else if (MemoryAddressSpace == MEMSPACE_EEPROM)
+ {
+ if (((uint8_t)USB_ControlRequest.wValue > eeprom_read_byte(&DevDescriptorPtr->NumberOfConfigurations)))
+ return;
+ }
+ else
+ {
+ if ((uint8_t)USB_ControlRequest.wValue > DevDescriptorPtr->NumberOfConfigurations)
+ return;
+ }
+ #endif
+
+ Endpoint_ClearSETUP();
+
+ USB_ConfigurationNumber = (uint8_t)USB_ControlRequest.wValue;
+
+ Endpoint_ClearStatusStage();
+
+ if (USB_ConfigurationNumber)
+ USB_DeviceState = DEVICE_STATE_Configured;
+ else
+ USB_DeviceState = (USB_Device_IsAddressSet()) ? DEVICE_STATE_Configured : DEVICE_STATE_Powered;
+
+ EVENT_USB_Device_ConfigurationChanged();
+}
+
+static void USB_Device_GetConfiguration(void)
+{
+ Endpoint_ClearSETUP();
+
+ Endpoint_Write_Byte(USB_ConfigurationNumber);
+ Endpoint_ClearIN();
+
+ Endpoint_ClearStatusStage();
+}
+
+#if !defined(NO_INTERNAL_SERIAL) && (USE_INTERNAL_SERIAL != NO_DESCRIPTOR)
+static void USB_Device_GetInternalSerialDescriptor(void)
+{
+ struct
+ {
+ USB_Descriptor_Header_t Header;
+ wchar_t UnicodeString[20];
+ } SignatureDescriptor;
+
+ SignatureDescriptor.Header.Type = DTYPE_String;
+ SignatureDescriptor.Header.Size = sizeof(SignatureDescriptor);
+
+ ATOMIC_BLOCK(ATOMIC_RESTORESTATE)
+ {
+ uint8_t SigReadAddress = 0x0E;
+
+ for (uint8_t SerialCharNum = 0; SerialCharNum < 20; SerialCharNum++)
+ {
+ uint8_t SerialByte = boot_signature_byte_get(SigReadAddress);
+
+ if (SerialCharNum & 0x01)
+ {
+ SerialByte >>= 4;
+ SigReadAddress++;
+ }
+
+ SerialByte &= 0x0F;
+
+ SignatureDescriptor.UnicodeString[SerialCharNum] = (SerialByte >= 10) ?
+ (('A' - 10) + SerialByte) : ('0' + SerialByte);
+ }
+ }
+
+ Endpoint_ClearSETUP();
+
+ Endpoint_Write_Control_Stream_LE(&SignatureDescriptor, sizeof(SignatureDescriptor));
+
+ Endpoint_ClearOUT();
+}
+#endif
+
+static void USB_Device_GetDescriptor(void)
+{
+ const void* DescriptorPointer;
+ uint16_t DescriptorSize;
+
+ #if !defined(USE_FLASH_DESCRIPTORS) && !defined(USE_EEPROM_DESCRIPTORS) && !defined(USE_RAM_DESCRIPTORS)
+ uint8_t DescriptorAddressSpace;
+ #endif
+
+ #if !defined(NO_INTERNAL_SERIAL) && (USE_INTERNAL_SERIAL != NO_DESCRIPTOR)
+ if (USB_ControlRequest.wValue == ((DTYPE_String << 8) | USE_INTERNAL_SERIAL))
+ {
+ USB_Device_GetInternalSerialDescriptor();
+ return;
+ }
+ #endif
+
+ if ((DescriptorSize = CALLBACK_USB_GetDescriptor(USB_ControlRequest.wValue, USB_ControlRequest.wIndex,
+ &DescriptorPointer
+ #if !defined(USE_FLASH_DESCRIPTORS) && !defined(USE_EEPROM_DESCRIPTORS) && !defined(USE_RAM_DESCRIPTORS)
+ , &DescriptorAddressSpace
+ #endif
+ )) == NO_DESCRIPTOR)
+ {
+ return;
+ }
+
+ Endpoint_ClearSETUP();
+
+ #if defined(USE_RAM_DESCRIPTORS)
+ Endpoint_Write_Control_Stream_LE(DescriptorPointer, DescriptorSize);
+ #elif defined(USE_EEPROM_DESCRIPTORS)
+ Endpoint_Write_Control_EStream_LE(DescriptorPointer, DescriptorSize);
+ #elif defined(USE_FLASH_DESCRIPTORS)
+ Endpoint_Write_Control_PStream_LE(DescriptorPointer, DescriptorSize);
+ #else
+ if (DescriptorAddressSpace == MEMSPACE_FLASH)
+ Endpoint_Write_Control_PStream_LE(DescriptorPointer, DescriptorSize);
+ else if (DescriptorAddressSpace == MEMSPACE_EEPROM)
+ Endpoint_Write_Control_EStream_LE(DescriptorPointer, DescriptorSize);
+ else
+ Endpoint_Write_Control_Stream_LE(DescriptorPointer, DescriptorSize);
+ #endif
+
+ Endpoint_ClearOUT();
+}
+
+static void USB_Device_GetStatus(void)
+{
+ uint8_t CurrentStatus = 0;
+
+ switch (USB_ControlRequest.bmRequestType)
+ {
+ #if !defined(NO_DEVICE_SELF_POWER) || !defined(NO_DEVICE_REMOTE_WAKEUP)
+ case (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE):
+ #if !defined(NO_DEVICE_SELF_POWER)
+ if (USB_CurrentlySelfPowered)
+ CurrentStatus |= FEATURE_SELFPOWERED_ENABLED;
+ #endif
+
+ #if !defined(NO_DEVICE_REMOTE_WAKEUP)
+ if (USB_RemoteWakeupEnabled)
+ CurrentStatus |= FEATURE_REMOTE_WAKEUP_ENABLED;
+ #endif
+ break;
+ #endif
+ #if !defined(CONTROL_ONLY_DEVICE)
+ case (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_ENDPOINT):
+ Endpoint_SelectEndpoint((uint8_t)USB_ControlRequest.wIndex & ENDPOINT_EPNUM_MASK);
+
+ CurrentStatus = Endpoint_IsStalled();
+
+ Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
+
+ break;
+ #endif
+ default:
+ return;
+ }
+
+ Endpoint_ClearSETUP();
+
+ Endpoint_Write_Word_LE(CurrentStatus);
+ Endpoint_ClearIN();
+
+ Endpoint_ClearStatusStage();
+}
+
+static void USB_Device_ClearSetFeature(void)
+{
+ switch (USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_RECIPIENT)
+ {
+ #if !defined(NO_DEVICE_REMOTE_WAKEUP)
+ case REQREC_DEVICE:
+ if ((uint8_t)USB_ControlRequest.wValue == FEATURE_SEL_DeviceRemoteWakeup)
+ USB_RemoteWakeupEnabled = (USB_ControlRequest.bRequest == REQ_SetFeature);
+ else
+ return;
+
+ break;
+ #endif
+ #if !defined(CONTROL_ONLY_DEVICE)
+ case REQREC_ENDPOINT:
+ if ((uint8_t)USB_ControlRequest.wValue == FEATURE_SEL_EndpointHalt)
+ {
+ uint8_t EndpointIndex = ((uint8_t)USB_ControlRequest.wIndex & ENDPOINT_EPNUM_MASK);
+
+ if (EndpointIndex == ENDPOINT_CONTROLEP)
+ return;
+
+ Endpoint_SelectEndpoint(EndpointIndex);
+
+ if (Endpoint_IsEnabled())
+ {
+ if (USB_ControlRequest.bRequest == REQ_SetFeature)
+ {
+ Endpoint_StallTransaction();
+ }
+ else
+ {
+ Endpoint_ClearStall();
+ Endpoint_ResetFIFO(EndpointIndex);
+ Endpoint_ResetDataToggle();
+ }
+ }
+ }
+
+ break;
+ #endif
+ default:
+ return;
+ }
+
+ Endpoint_SelectEndpoint(ENDPOINT_CONTROLEP);
+
+ Endpoint_ClearSETUP();
+
+ Endpoint_ClearStatusStage();
+}
+
+#endif
+
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