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Replace internal Pipe_BytesToEPSizeMask() routine with a new version which results in smaller code.

This commit is contained in:
Dean Camera 2010-07-21 14:17:18 +00:00
parent 97143bf814
commit 83e293a6ec
1 changed files with 10 additions and 12 deletions
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22
LUFA/Drivers/USB/LowLevel/Pipe.h
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@ -1061,18 +1061,16 @@
static inline uint8_t Pipe_BytesToEPSizeMask(const uint16_t Bytes) ATTR_WARN_UNUSED_RESULT ATTR_CONST ATTR_ALWAYS_INLINE;
static inline uint8_t Pipe_BytesToEPSizeMask(const uint16_t Bytes)
{
if (Bytes <= 8)
return (0 << EPSIZE0);
else if (Bytes <= 16)
return (1 << EPSIZE0);
else if (Bytes <= 32)
return (2 << EPSIZE0);
else if (Bytes <= 64)
return (3 << EPSIZE0);
else if (Bytes <= 128)
return (4 << EPSIZE0);
else
return (5 << EPSIZE0);
uint8_t MaskVal = 0;
uint16_t CheckBytes = 8;
while ((CheckBytes < Bytes) && (CheckBytes < PIPE_MAX_SIZE))
{
MaskVal++;
CheckBytes <<= 1;
}
return (MaskVal << EPSIZE0);
}
#endif