diff options
Diffstat (limited to 'LUFA/Drivers/USB/Core/UC3/EndpointStream_UC3.c')
| -rw-r--r-- | LUFA/Drivers/USB/Core/UC3/EndpointStream_UC3.c | 26 |
1 files changed, 8 insertions, 18 deletions
diff --git a/LUFA/Drivers/USB/Core/UC3/EndpointStream_UC3.c b/LUFA/Drivers/USB/Core/UC3/EndpointStream_UC3.c index 04f6e97d6..cf5e7fb03 100644 --- a/LUFA/Drivers/USB/Core/UC3/EndpointStream_UC3.c +++ b/LUFA/Drivers/USB/Core/UC3/EndpointStream_UC3.c @@ -1,13 +1,13 @@ /* LUFA Library - Copyright (C) Dean Camera, 2017. + Copyright (C) Dean Camera, 2019. dean [at] fourwalledcubicle [dot] com www.lufa-lib.org */ /* - Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com) + Copyright 2019 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 @@ -43,15 +43,12 @@ uint8_t Endpoint_Discard_Stream(uint16_t Length, uint16_t* const BytesProcessed) { uint8_t ErrorCode; - uint16_t BytesInTransfer = 0; + uint16_t BytesInTransfer = BytesProcessed ? *BytesProcessed : 0; if ((ErrorCode = Endpoint_WaitUntilReady())) return ErrorCode; - if (BytesProcessed != NULL) - Length -= *BytesProcessed; - - while (Length) + while (BytesInTransfer < Length) { if (!(Endpoint_IsReadWriteAllowed())) { @@ -59,7 +56,7 @@ uint8_t Endpoint_Discard_Stream(uint16_t Length, if (BytesProcessed != NULL) { - *BytesProcessed += BytesInTransfer; + *BytesProcessed = BytesInTransfer; return ENDPOINT_RWSTREAM_IncompleteTransfer; } @@ -69,8 +66,6 @@ uint8_t Endpoint_Discard_Stream(uint16_t Length, else { Endpoint_Discard_8(); - - Length--; BytesInTransfer++; } } @@ -82,15 +77,12 @@ uint8_t Endpoint_Null_Stream(uint16_t Length, uint16_t* const BytesProcessed) { uint8_t ErrorCode; - uint16_t BytesInTransfer = 0; + uint16_t BytesInTransfer = BytesProcessed ? *BytesProcessed : 0; if ((ErrorCode = Endpoint_WaitUntilReady())) return ErrorCode; - if (BytesProcessed != NULL) - Length -= *BytesProcessed; - - while (Length) + while (BytesInTransfer < Length) { if (!(Endpoint_IsReadWriteAllowed())) { @@ -98,7 +90,7 @@ uint8_t Endpoint_Null_Stream(uint16_t Length, if (BytesProcessed != NULL) { - *BytesProcessed += BytesInTransfer; + *BytesProcessed = BytesInTransfer; return ENDPOINT_RWSTREAM_IncompleteTransfer; } @@ -108,8 +100,6 @@ uint8_t Endpoint_Null_Stream(uint16_t Length, else { Endpoint_Write_8(0); - - Length--; BytesInTransfer++; } } |