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| author | Dean Camera <dean@fourwalledcubicle.com> | 2010-07-21 14:17:18 +0000 |
|---|---|---|
| committer | Dean Camera <dean@fourwalledcubicle.com> | 2010-07-21 14:17:18 +0000 |
| commit | 83e293a6ec98c7faad1b76dd312b31b86cbeecc1 (patch) | |
| tree | dcdf2b7cbda1a29eb8e1bd90cf3bb73c94acbad1 /LUFA/Drivers/USB | |
| parent | 97143bf81480d3f642e33684349c601d5cd0b1ae (diff) | |
| download | lufa-83e293a6ec98c7faad1b76dd312b31b86cbeecc1.tar.gz lufa-83e293a6ec98c7faad1b76dd312b31b86cbeecc1.tar.bz2 lufa-83e293a6ec98c7faad1b76dd312b31b86cbeecc1.zip | |
Replace internal Pipe_BytesToEPSizeMask() routine with a new version which results in smaller code.
Diffstat (limited to 'LUFA/Drivers/USB')
| -rw-r--r-- | LUFA/Drivers/USB/LowLevel/Pipe.h | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/LUFA/Drivers/USB/LowLevel/Pipe.h b/LUFA/Drivers/USB/LowLevel/Pipe.h index 0714aa844..ee43babfe 100644 --- a/LUFA/Drivers/USB/LowLevel/Pipe.h +++ b/LUFA/Drivers/USB/LowLevel/Pipe.h @@ -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 |