diff options
Diffstat (limited to 'LUFA')
| -rw-r--r-- | LUFA/Drivers/USB/LowLevel/Endpoint.h | 24 | ||||
| -rw-r--r-- | LUFA/Drivers/USB/LowLevel/Pipe.h | 24 | ||||
| -rw-r--r-- | LUFA/ManPages/ChangeLog.txt | 1 |
3 files changed, 33 insertions, 16 deletions
diff --git a/LUFA/Drivers/USB/LowLevel/Endpoint.h b/LUFA/Drivers/USB/LowLevel/Endpoint.h index 977c63cfb..652ee8042 100644 --- a/LUFA/Drivers/USB/LowLevel/Endpoint.h +++ b/LUFA/Drivers/USB/LowLevel/Endpoint.h @@ -511,12 +511,16 @@ static inline uint16_t Endpoint_Read_Word_LE(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline uint16_t Endpoint_Read_Word_LE(void)
{
- uint16_t Data;
+ union
+ {
+ uint16_t Word;
+ uint8_t Bytes[2];
+ } Data;
- Data = UEDATX;
- Data |= (((uint16_t)UEDATX) << 8);
+ Data.Bytes[0] = UEDATX;
+ Data.Bytes[1] = UEDATX;
- return Data;
+ return Data.Word;
}
/** Reads two bytes from the currently selected endpoint's bank in big endian format, for OUT
@@ -529,12 +533,16 @@ static inline uint16_t Endpoint_Read_Word_BE(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline uint16_t Endpoint_Read_Word_BE(void)
{
- uint16_t Data;
+ union
+ {
+ uint16_t Word;
+ uint8_t Bytes[2];
+ } Data;
- Data = (((uint16_t)UEDATX) << 8);
- Data |= UEDATX;
+ Data.Bytes[1] = UEDATX;
+ Data.Bytes[0] = UEDATX;
- return Data;
+ return Data.Word;
}
/** Writes two bytes to the currently selected endpoint's bank in little endian format, for IN
diff --git a/LUFA/Drivers/USB/LowLevel/Pipe.h b/LUFA/Drivers/USB/LowLevel/Pipe.h index 3931f8530..beee2eb85 100644 --- a/LUFA/Drivers/USB/LowLevel/Pipe.h +++ b/LUFA/Drivers/USB/LowLevel/Pipe.h @@ -566,12 +566,16 @@ static inline uint16_t Pipe_Read_Word_LE(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline uint16_t Pipe_Read_Word_LE(void)
{
- uint16_t Data;
+ union
+ {
+ uint16_t Word;
+ uint8_t Bytes[2];
+ } Data;
- Data = UPDATX;
- Data |= (((uint16_t)UPDATX) << 8);
+ Data.Bytes[0] = UPDATX;
+ Data.Bytes[1] = UPDATX;
- return Data;
+ return Data.Word;
}
/** Reads two bytes from the currently selected pipe's bank in big endian format, for OUT
@@ -584,12 +588,16 @@ static inline uint16_t Pipe_Read_Word_BE(void) ATTR_WARN_UNUSED_RESULT ATTR_ALWAYS_INLINE;
static inline uint16_t Pipe_Read_Word_BE(void)
{
- uint16_t Data;
+ union
+ {
+ uint16_t Word;
+ uint8_t Bytes[2];
+ } Data;
- Data = (((uint16_t)UPDATX) << 8);
- Data |= UPDATX;
+ Data.Bytes[1] = UPDATX;
+ Data.Bytes[0] = UPDATX;
- return Data;
+ return Data.Word;
}
/** Writes two bytes to the currently selected pipe's bank in little endian format, for IN
diff --git a/LUFA/ManPages/ChangeLog.txt b/LUFA/ManPages/ChangeLog.txt index 6c4fea568..981ff1ded 100644 --- a/LUFA/ManPages/ChangeLog.txt +++ b/LUFA/ManPages/ChangeLog.txt @@ -24,6 +24,7 @@ * - Added explicit attribute masks to the device mode demos' descriptors
* - Added return values to the CDC and MIDI class driver transmit functions
* - Added extra masks to the SPI driver, changed SPI_Init() so that the clock polarity and sample modes can be set
+ * - Optimized Endpoint_Read_Word_* and Pipe_Read_Word_* macros to reduce compiled size
*
* <b>Fixed:</b>
* - Fixed possible lockup in the CDC device class driver, when the host sends data that is a multiple of the
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