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author | Dean Camera <dean@fourwalledcubicle.com> | 2011-05-26 11:27:21 +0000 |
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committer | Dean Camera <dean@fourwalledcubicle.com> | 2011-05-26 11:27:21 +0000 |
commit | 1ea5dae8a824264580baea2479da7c58711ae879 (patch) | |
tree | 14dc584c7ce1da61cbf4d987d874e8c99d1fe3ad /LUFA/Drivers/USB/Core/UC3/Template | |
parent | edc4db41f46f473fc0ba95fd03920d10aba1de4a (diff) | |
download | lufa-1ea5dae8a824264580baea2479da7c58711ae879.tar.gz lufa-1ea5dae8a824264580baea2479da7c58711ae879.tar.bz2 lufa-1ea5dae8a824264580baea2479da7c58711ae879.zip |
Copy out the EndpointStream and PipeStream functions to each architecture, so that each architecture can optimise the stream functions according to the available hardware (such as DMA, where available).
Diffstat (limited to 'LUFA/Drivers/USB/Core/UC3/Template')
4 files changed, 215 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Core/UC3/Template/Template_Endpoint_Control_R.c b/LUFA/Drivers/USB/Core/UC3/Template/Template_Endpoint_Control_R.c new file mode 100644 index 000000000..e746b5124 --- /dev/null +++ b/LUFA/Drivers/USB/Core/UC3/Template/Template_Endpoint_Control_R.c @@ -0,0 +1,50 @@ +uint8_t TEMPLATE_FUNC_NAME (void* const Buffer, + uint16_t Length) +{ + uint8_t* DataStream = ((uint8_t*)Buffer + TEMPLATE_BUFFER_OFFSET(Length)); + + if (!(Length)) + Endpoint_ClearOUT(); + + while (Length) + { + uint8_t USB_DeviceState_LCL = USB_DeviceState; + + if (USB_DeviceState_LCL == DEVICE_STATE_Unattached) + return ENDPOINT_RWCSTREAM_DeviceDisconnected; + else if (USB_DeviceState_LCL == DEVICE_STATE_Suspended) + return ENDPOINT_RWCSTREAM_BusSuspended; + else if (Endpoint_IsSETUPReceived()) + return ENDPOINT_RWCSTREAM_HostAborted; + + if (Endpoint_IsOUTReceived()) + { + while (Length && Endpoint_BytesInEndpoint()) + { + TEMPLATE_TRANSFER_BYTE(DataStream); + TEMPLATE_BUFFER_MOVE(DataStream, 1); + Length--; + } + + Endpoint_ClearOUT(); + } + } + + while (!(Endpoint_IsINReady())) + { + uint8_t USB_DeviceState_LCL = USB_DeviceState; + + if (USB_DeviceState_LCL == DEVICE_STATE_Unattached) + return ENDPOINT_RWCSTREAM_DeviceDisconnected; + else if (USB_DeviceState_LCL == DEVICE_STATE_Suspended) + return ENDPOINT_RWCSTREAM_BusSuspended; + } + + return ENDPOINT_RWCSTREAM_NoError; +} + + +#undef TEMPLATE_BUFFER_OFFSET +#undef TEMPLATE_BUFFER_MOVE +#undef TEMPLATE_FUNC_NAME +#undef TEMPLATE_TRANSFER_BYTE diff --git a/LUFA/Drivers/USB/Core/UC3/Template/Template_Endpoint_Control_W.c b/LUFA/Drivers/USB/Core/UC3/Template/Template_Endpoint_Control_W.c new file mode 100644 index 000000000..bdbbcfc11 --- /dev/null +++ b/LUFA/Drivers/USB/Core/UC3/Template/Template_Endpoint_Control_W.c @@ -0,0 +1,58 @@ +uint8_t TEMPLATE_FUNC_NAME (const void* const Buffer, + uint16_t Length) +{ + uint8_t* DataStream = ((uint8_t*)Buffer + TEMPLATE_BUFFER_OFFSET(Length)); + bool LastPacketFull = false; + + if (Length > USB_ControlRequest.wLength) + Length = USB_ControlRequest.wLength; + else if (!(Length)) + Endpoint_ClearIN(); + + while (Length || LastPacketFull) + { + uint8_t USB_DeviceState_LCL = USB_DeviceState; + + if (USB_DeviceState_LCL == DEVICE_STATE_Unattached) + return ENDPOINT_RWCSTREAM_DeviceDisconnected; + else if (USB_DeviceState_LCL == DEVICE_STATE_Suspended) + return ENDPOINT_RWCSTREAM_BusSuspended; + else if (Endpoint_IsSETUPReceived()) + return ENDPOINT_RWCSTREAM_HostAborted; + else if (Endpoint_IsOUTReceived()) + break; + + if (Endpoint_IsINReady()) + { + uint16_t BytesInEndpoint = Endpoint_BytesInEndpoint(); + + while (Length && (BytesInEndpoint < USB_ControlEndpointSize)) + { + TEMPLATE_TRANSFER_BYTE(DataStream); + TEMPLATE_BUFFER_MOVE(DataStream, 1); + Length--; + BytesInEndpoint++; + } + + LastPacketFull = (BytesInEndpoint == USB_ControlEndpointSize); + Endpoint_ClearIN(); + } + } + + while (!(Endpoint_IsOUTReceived())) + { + uint8_t USB_DeviceState_LCL = USB_DeviceState; + + if (USB_DeviceState_LCL == DEVICE_STATE_Unattached) + return ENDPOINT_RWCSTREAM_DeviceDisconnected; + else if (USB_DeviceState_LCL == DEVICE_STATE_Suspended) + return ENDPOINT_RWCSTREAM_BusSuspended; + } + + return ENDPOINT_RWCSTREAM_NoError; +} + +#undef TEMPLATE_BUFFER_OFFSET +#undef TEMPLATE_BUFFER_MOVE +#undef TEMPLATE_FUNC_NAME +#undef TEMPLATE_TRANSFER_BYTE diff --git a/LUFA/Drivers/USB/Core/UC3/Template/Template_Endpoint_RW.c b/LUFA/Drivers/USB/Core/UC3/Template/Template_Endpoint_RW.c new file mode 100644 index 000000000..a46d7513b --- /dev/null +++ b/LUFA/Drivers/USB/Core/UC3/Template/Template_Endpoint_RW.c @@ -0,0 +1,54 @@ +uint8_t TEMPLATE_FUNC_NAME (TEMPLATE_BUFFER_TYPE const Buffer, + uint16_t Length, + uint16_t* const BytesProcessed) +{ + uint8_t* DataStream = ((uint8_t*)Buffer + TEMPLATE_BUFFER_OFFSET(Length)); + uint16_t BytesInTransfer = 0; + uint8_t ErrorCode; + + if ((ErrorCode = Endpoint_WaitUntilReady())) + return ErrorCode; + + if (BytesProcessed != NULL) + { + Length -= *BytesProcessed; + TEMPLATE_BUFFER_MOVE(DataStream, *BytesProcessed); + } + + while (Length) + { + if (!(Endpoint_IsReadWriteAllowed())) + { + TEMPLATE_CLEAR_ENDPOINT(); + + if (BytesProcessed != NULL) + { + *BytesProcessed += BytesInTransfer; + return ENDPOINT_RWSTREAM_IncompleteTransfer; + } + + #if !defined(INTERRUPT_CONTROL_ENDPOINT) + USB_USBTask(); + #endif + + if ((ErrorCode = Endpoint_WaitUntilReady())) + return ErrorCode; + } + else + { + TEMPLATE_TRANSFER_BYTE(DataStream); + TEMPLATE_BUFFER_MOVE(DataStream, 1); + Length--; + BytesInTransfer++; + } + } + + return ENDPOINT_RWSTREAM_NoError; +} + +#undef TEMPLATE_FUNC_NAME +#undef TEMPLATE_BUFFER_TYPE +#undef TEMPLATE_TRANSFER_BYTE +#undef TEMPLATE_CLEAR_ENDPOINT +#undef TEMPLATE_BUFFER_OFFSET +#undef TEMPLATE_BUFFER_MOVE diff --git a/LUFA/Drivers/USB/Core/UC3/Template/Template_Pipe_RW.c b/LUFA/Drivers/USB/Core/UC3/Template/Template_Pipe_RW.c new file mode 100644 index 000000000..147ce5ad4 --- /dev/null +++ b/LUFA/Drivers/USB/Core/UC3/Template/Template_Pipe_RW.c @@ -0,0 +1,53 @@ +uint8_t TEMPLATE_FUNC_NAME (TEMPLATE_BUFFER_TYPE const Buffer, + uint16_t Length, + uint16_t* const BytesProcessed) +{ + uint8_t* DataStream = ((uint8_t*)Buffer + TEMPLATE_BUFFER_OFFSET(Length)); + uint16_t BytesInTransfer = 0; + uint8_t ErrorCode; + + Pipe_SetPipeToken(TEMPLATE_TOKEN); + + if ((ErrorCode = Pipe_WaitUntilReady())) + return ErrorCode; + + if (BytesProcessed != NULL) + { + Length -= *BytesProcessed; + TEMPLATE_BUFFER_MOVE(DataStream, *BytesProcessed); + } + + while (Length) + { + if (!(Pipe_IsReadWriteAllowed())) + { + TEMPLATE_CLEAR_PIPE(); + + if (BytesProcessed != NULL) + { + *BytesProcessed += BytesInTransfer; + return PIPE_RWSTREAM_IncompleteTransfer; + } + + if ((ErrorCode = Pipe_WaitUntilReady())) + return ErrorCode; + } + else + { + TEMPLATE_TRANSFER_BYTE(DataStream); + TEMPLATE_BUFFER_MOVE(DataStream, 1); + Length--; + BytesInTransfer++; + } + } + + return PIPE_RWSTREAM_NoError; +} + +#undef TEMPLATE_FUNC_NAME +#undef TEMPLATE_BUFFER_TYPE +#undef TEMPLATE_TOKEN +#undef TEMPLATE_TRANSFER_BYTE +#undef TEMPLATE_CLEAR_PIPE +#undef TEMPLATE_BUFFER_OFFSET +#undef TEMPLATE_BUFFER_MOVE |