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| author | Dean Camera <dean@fourwalledcubicle.com> | 2010-10-06 10:16:02 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2010-10-06 10:16:02 +0000 |
| commit | 3ae9e6042fc1ebc876e32142dde606f7890518b2 (patch) | |
| tree | dc543d0f197986bafee383442e147acd3254ddd4 /LUFA/Drivers/USB/LowLevel | |
| parent | 93793679c95198e3272de565c6904f14ab257795 (diff) | |
| download | lufa-3ae9e6042fc1ebc876e32142dde606f7890518b2.tar.gz lufa-3ae9e6042fc1ebc876e32142dde606f7890518b2.tar.bz2 lufa-3ae9e6042fc1ebc876e32142dde606f7890518b2.zip | |
Cache the USB_DeviceState variable internally in the library core when multiple checks are required in a single loop iteration, to reduce compiled code size.
Diffstat (limited to 'LUFA/Drivers/USB/LowLevel')
| -rw-r--r-- | LUFA/Drivers/USB/LowLevel/Endpoint.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/LUFA/Drivers/USB/LowLevel/Endpoint.c b/LUFA/Drivers/USB/LowLevel/Endpoint.c index fc54e115a..fc2bff154 100644 --- a/LUFA/Drivers/USB/LowLevel/Endpoint.c +++ b/LUFA/Drivers/USB/LowLevel/Endpoint.c @@ -115,10 +115,12 @@ uint8_t Endpoint_WaitUntilReady(void) return ENDPOINT_READYWAIT_NoError; } - if (USB_DeviceState == DEVICE_STATE_Unattached) + uint8_t USB_DeviceState_LCL = USB_DeviceState; + + if (USB_DeviceState_LCL == DEVICE_STATE_Unattached) return ENDPOINT_READYWAIT_DeviceDisconnected; - else if (USB_DeviceState == DEVICE_STATE_Suspended) - return ENDPOINT_READYWAIT_BusSuspended; + else if (USB_DeviceState_LCL == DEVICE_STATE_Suspended) + return ENDPOINT_READYWAIT_BusSuspended; else if (Endpoint_IsStalled()) return ENDPOINT_READYWAIT_EndpointStalled; |