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Add missing function attributes to the pipe/endpoint functions for all architectures.

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Perform endianness correction in the HID report parser for big-endian platforms.
This commit is contained in:
Dean Camera 2011-04-12 03:03:56 +00:00
parent 852b5e612d
commit 995195a2b0
14 changed files with 40 additions and 24 deletions
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12
LUFA/Common/Common.h
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@ -232,6 +232,15 @@
* assembly output in an unexpected manner on sections of code that are ordering-specific.
*/
#define GCC_MEMORY_BARRIER() __asm__ __volatile__("" ::: "memory");
/** Evaluates to boolean true if the specified value can be determined at compile time to be a constant value
* when compiling under GCC.
*
* \param[in] x Value to check compile time constantness of.
*
* \return Boolean true if the given value is known to be a compile time constant.
*/
#define GCC_IS_COMPILE_CONST(x) __builtin_constant_p(x)
#if !defined(ISR) || defined(__DOXYGEN__)
/** Macro for the definition of interrupt service routines, so that the compiler can insert the required
@ -273,10 +282,11 @@
*
* \param[in] Milliseconds Number of milliseconds to delay
*/
static inline void Delay_MS(uint8_t Milliseconds) ATTR_ALWAYS_INLINE;
static inline void Delay_MS(uint8_t Milliseconds)
{
#if (ARCH == ARCH_AVR8)
if (__builtin_constant_p(Milliseconds))
if (GCC_IS_COMPILE_CONST(Milliseconds))
{
_delay_ms(Milliseconds);
}

24
LUFA/Common/Endianness.h
View file

@ -74,7 +74,7 @@
*
* \ingroup Group_ByteSwapping
*
* \param[in] x 16-bit value whose byte ordering is to be swapped.
* \param[in] x 16-bit value whose byte ordering is to be swapped.
*
* \return Input value with the byte ordering reversed.
*/
@ -87,7 +87,7 @@
*
* \ingroup Group_ByteSwapping
*
* \param[in] x 32-bit value whose byte ordering is to be swapped.
* \param[in] x 32-bit value whose byte ordering is to be swapped.
*
* \return Input value with the byte ordering reversed.
*/
@ -440,24 +440,24 @@
*
* \ingroup Group_ByteSwapping
*
* \param[in,out] Data Pointer to a number containing an even number of bytes to be reversed.
* \param[in] Bytes Length of the data in bytes.
* \param[in,out] Data Pointer to a number containing an even number of bytes to be reversed.
* \param[in] Length Length of the data in bytes.
*/
static inline void SwapEndian_n(void* Data,
uint8_t Bytes) ATTR_NON_NULL_PTR_ARG(1);
static inline void SwapEndian_n(void* Data,
uint8_t Bytes)
static inline void SwapEndian_n(void* const Data,
uint8_t Length) ATTR_NON_NULL_PTR_ARG(1);
static inline void SwapEndian_n(void* const Data,
uint8_t Length)
{
uint8_t* CurrDataPos = (uint8_t*)Data;
while (Bytes > 1)
while (Length > 1)
{
uint8_t Temp = *CurrDataPos;
*CurrDataPos = *(CurrDataPos + Bytes - 1);
*(CurrDataPos + Bytes - 1) = Temp;
*CurrDataPos = *(CurrDataPos + Length - 1);
*(CurrDataPos + Length - 1) = Temp;
CurrDataPos++;
Bytes -= 2;
Length -= 2;
}
}