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Abuse the the C preprocessor so that the HID macros can automatically encode data into the array from the HID macros automagically, by specifying the bit-width of the data, and the data itself as a single integer value of that width.

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This commit is contained in:
Dean Camera 2011-01-17 19:44:48 +00:00
parent 47fec03694
commit efd57cfe51
16 changed files with 474 additions and 496 deletions
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73
LUFA/Drivers/USB/Class/Common/HIDReportData.h
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@ -49,19 +49,28 @@
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
/* Macros: */
#define HID_RI_DATA_SIZE_MASK 0x03
#define HID_RI_TYPE_MASK 0x0C
#define HID_RI_TAG_MASK 0xF0
#define HID_RI_DATA_SIZE_MASK 0x03
#define HID_RI_TYPE_MASK 0x0C
#define HID_RI_TAG_MASK 0xF0
#define HID_RI_TYPE_MAIN 0x00
#define HID_RI_TYPE_GLOBAL 0x04
#define HID_RI_TYPE_LOCAL 0x08
#define HID_RI_TYPE_MAIN 0x00
#define HID_RI_TYPE_GLOBAL 0x04
#define HID_RI_TYPE_LOCAL 0x08
#define HID_RI_DATA_BITS_0 0x00
#define HID_RI_DATA_BITS_8 0x01
#define HID_RI_DATA_BITS_16 0x02
#define HID_RI_DATA_BITS_32 0x03
#define HID_RI_DATA_BITS(DataBits) HID_RI_DATA_BITS_ ## DataBits
#define HID_RI_DATA_BITS_0 0x00
#define HID_RI_DATA_BITS_8 0x01
#define HID_RI_DATA_BITS_16 0x02
#define HID_RI_DATA_BITS_32 0x03
#define HID_RI_DATA_BITS(DataBits) HID_RI_DATA_BITS_ ## DataBits
#define _HID_RI_ENCODE_0(Data) /* No Data */
#define _HID_RI_ENCODE_8(Data) , (Data & 0xFF)
#define _HID_RI_ENCODE_16(Data) _HID_RI_ENCODE_8(Data >> 8) _HID_RI_ENCODE_8(Data)
#define _HID_RI_ENCODE_32(Data) _HID_RI_ENCODE_16(Data >> 16) _HID_RI_ENCODE_16(Data)
#define _HID_RI_ENCODE(DataBits, ...) _HID_RI_ENCODE_ ## DataBits(__VA_ARGS__)
#define _HID_RI_ENTRY(Type, Tag, DataBits, ...) \
(Type | Tag | HID_RI_DATA_BITS(DataBits)) _HID_RI_ENCODE(DataBits, (__VA_ARGS__))
#endif
/* Public Interface - May be used in end-application: */
@ -90,28 +99,28 @@
/** \name HID Report Descriptor Item Macros */
//@{
#define HID_RI_INPUT(DataBits) (HID_RI_TYPE_MAIN | 0x80 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_OUTPUT(DataBits) (HID_RI_TYPE_MAIN | 0x90 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_COLLECTION(DataBits) (HID_RI_TYPE_MAIN | 0xA0 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_FEATURE(DataBits) (HID_RI_TYPE_MAIN | 0xB0 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_END_COLLECTION(DataBits) (HID_RI_TYPE_MAIN | 0xC0 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_USAGE_PAGE(DataBits) (HID_RI_TYPE_GLOBAL | 0x00 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_LOGICAL_MINIMUM(DataBits) (HID_RI_TYPE_GLOBAL | 0x10 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_LOGICAL_MAXIMUM(DataBits) (HID_RI_TYPE_GLOBAL | 0x20 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_PHYSICAL_MINIMUM(DataBits) (HID_RI_TYPE_GLOBAL | 0x30 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_PHYSICAL_MAXIMUM(DataBits) (HID_RI_TYPE_GLOBAL | 0x40 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_UNIT_EXPONENT(DataBits) (HID_RI_TYPE_GLOBAL | 0x50 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_UNIT(DataBits) (HID_RI_TYPE_GLOBAL | 0x60 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_REPORT_SIZE(DataBits) (HID_RI_TYPE_GLOBAL | 0x70 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_REPORT_ID(DataBits) (HID_RI_TYPE_GLOBAL | 0x80 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_REPORT_COUNT(DataBits) (HID_RI_TYPE_GLOBAL | 0x90 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_PUSH(DataBits) (HID_RI_TYPE_GLOBAL | 0xA0 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_POP(DataBits) (HID_RI_TYPE_GLOBAL | 0xB0 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_USAGE(DataBits) (HID_RI_TYPE_LOCAL | 0x00 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_USAGE_MINIMUM(DataBits) (HID_RI_TYPE_LOCAL | 0x10 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_USAGE_MAXIMUM(DataBits) (HID_RI_TYPE_LOCAL | 0x20 | HID_RI_DATA_BITS(DataBits))
#define HID_RI_INPUT(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_MAIN , 0x80, DataBits, __VA_ARGS__)
#define HID_RI_OUTPUT(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_MAIN , 0x90, DataBits, __VA_ARGS__)
#define HID_RI_COLLECTION(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_MAIN , 0xA0, DataBits, __VA_ARGS__)
#define HID_RI_FEATURE(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_MAIN , 0xB0, DataBits, __VA_ARGS__)
#define HID_RI_END_COLLECTION(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_MAIN , 0xC0, DataBits, __VA_ARGS__)
#define HID_RI_USAGE_PAGE(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_GLOBAL, 0x00, DataBits, __VA_ARGS__)
#define HID_RI_LOGICAL_MINIMUM(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_GLOBAL, 0x10, DataBits, __VA_ARGS__)
#define HID_RI_LOGICAL_MAXIMUM(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_GLOBAL, 0x20, DataBits, __VA_ARGS__)
#define HID_RI_PHYSICAL_MINIMUM(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_GLOBAL, 0x30, DataBits, __VA_ARGS__)
#define HID_RI_PHYSICAL_MAXIMUM(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_GLOBAL, 0x40, DataBits, __VA_ARGS__)
#define HID_RI_UNIT_EXPONENT(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_GLOBAL, 0x50, DataBits, __VA_ARGS__)
#define HID_RI_UNIT(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_GLOBAL, 0x60, DataBits, __VA_ARGS__)
#define HID_RI_REPORT_SIZE(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_GLOBAL, 0x70, DataBits, __VA_ARGS__)
#define HID_RI_REPORT_ID(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_GLOBAL, 0x80, DataBits, __VA_ARGS__)
#define HID_RI_REPORT_COUNT(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_GLOBAL, 0x90, DataBits, __VA_ARGS__)
#define HID_RI_PUSH(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_GLOBAL, 0xA0, DataBits, __VA_ARGS__)
#define HID_RI_POP(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_GLOBAL, 0xB0, DataBits, __VA_ARGS__)
#define HID_RI_USAGE(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_LOCAL , 0x00, DataBits, __VA_ARGS__)
#define HID_RI_USAGE_MINIMUM(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_LOCAL , 0x10, DataBits, __VA_ARGS__)
#define HID_RI_USAGE_MAXIMUM(DataBits, ...) _HID_RI_ENTRY(HID_RI_TYPE_LOCAL , 0x20, DataBits, __VA_ARGS__)
//@}
/** @} */
#endif