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Use new VERSION_BCD() macro with explicit int arguments to fix edge cases with the previous floating point macro version.

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Dean Camera 2013-11-21 19:19:45 +01:00
parent 52c69331ec
commit e3cb0f48ef
51 changed files with 157 additions and 160 deletions
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23
LUFA/Drivers/USB/Core/StdDescriptors.h
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@ -85,17 +85,20 @@
*/
#define USB_STRING_LEN(UnicodeChars) (sizeof(USB_Descriptor_Header_t) + ((UnicodeChars) << 1))
/** Macro to encode a given four digit floating point version number (e.g. 01.23) into Binary Coded
* Decimal format for descriptor fields requiring BCD encoding, such as the USB version number in the
* standard device descriptor.
/** Macro to encode a given major/minor/revision version number into Binary Coded Decimal format for descriptor
* fields requiring BCD encoding, such as the USB version number in the standard device descriptor.
*
* \note This value is automatically converted into Little Endian, suitable for direct use inside device
* descriptors on all architectures without endianness conversion macros.
*
* \param[in] x Version number to encode as a 16-bit little-endian number, as a floating point number.
* \param[in] Major Major version number to encode.
* \param[in] Minor Minor version number to encode.
* \param[in] Revision Revision version number to encode.
*/
#define VERSION_BCD(x) CPU_TO_LE16((VERSION_TENS(x) << 12) | (VERSION_ONES(x) << 8) | \
(VERSION_TENTHS(x) << 4) | (VERSION_HUNDREDTHS(x) << 0) )
#define VERSION_BCD(Major, Minor, Revision) \
CPU_TO_LE16( ((Major & 0xFF) << 8) | \
((Minor & 0x0F) << 4) | \
(Revision & 0x0F) )
/** String language ID for the English language. Should be used in \ref USB_Descriptor_String_t descriptors
* to indicate that the English language is supported by the device in its string descriptors.
@ -736,14 +739,6 @@
*/
} ATTR_PACKED USB_StdDescriptor_String_t;
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
/* Macros: */
#define VERSION_TENS(x) (int)((int)(x) / 10)
#define VERSION_ONES(x) (int)((int)(x) % 10)
#define VERSION_TENTHS(x) (int)((x - (int)x) * 10)
#define VERSION_HUNDREDTHS(x) (int)((x * 100) - ((int)(x * 10) * 10))
#endif
/* Disable C linkage for C++ Compilers: */
#if defined(__cplusplus)