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Make a new general RingBuffer.h misc library driver, instead of the per-application LightweightRingBuff.h ring buffers. Change over projects to use the new driver.

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Add ORDERED_EP_CONFIG to the device Projects (only) that use only a single class driver, or where the endpoint ordering is fixed, to save on compiled binary size.

Added new GCC_FORCE_POINTER_ACCESS() macro to correct GCC's mishandling of struct pointers.
This commit is contained in:
Dean Camera 2010-12-26 13:01:37 +00:00
parent 12418e6eaf
commit 39ac72f2d1
23 changed files with 307 additions and 650 deletions
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14
LUFA/Common/Common.h
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@ -85,14 +85,14 @@
*
* \ingroup Group_Debugging
*/
#define JTAG_DEBUG_POINT() __asm__ volatile ("NOP" ::)
#define JTAG_DEBUG_POINT() __asm__ __volatile__ ("NOP" ::)
/** Defines an explicit JTAG break point in the resulting binary via the ASM BREAK statement. When
* a JTAG is used, this causes the program execution to halt when reached until manually resumed.
*
* \ingroup Group_Debugging
*/
#define JTAG_DEBUG_BREAK() __asm__ volatile ("BREAK" ::)
#define JTAG_DEBUG_BREAK() __asm__ __volatile__ ("BREAK" ::)
/** Macro for testing condition "x" and breaking via JTAG_DEBUG_BREAK() if the condition is false.
*
@ -111,6 +111,16 @@
#define STDOUT_ASSERT(x) MACROS{ if (!(x)) { printf_P(PSTR("%s: Function \"%s\", Line %d: " \
"Assertion \"%s\" failed.\r\n"), \
__FILE__, __func__, __LINE__, #x); } }MACROE
/** Forces GCC to use pointer indirection (via the AVR's pointer register pairs) when accessing the given
* struct pointer. In some cases GCC will emit non-optimal assembly code when accessing a structure through
* a pointer, resulting in a larger binary. When this macro is used on a (non-const) structure pointer before
* use, it will force GCC to use pointer indirection on the elements rather than direct store and load
* instructions.
*
* \param[in, out] StructPtr Pointer to a structure which is to be forced into indirect access mode.
*/
#define GCC_FORCE_POINTER_ACCESS(StructPtr) __asm__ __volatile__("" : "=b" (StructPtr) : "0" (StructPtr))
#if !defined(pgm_read_ptr) || defined(__DOXYGEN__)
/** Reads a pointer out of PROGMEM space. This is currently a wrapper for the avr-libc pgm_read_ptr()