diff options
Diffstat (limited to 'circuitpython/lib/tinyusb/src/common/tusb_compiler.h')
| -rw-r--r-- | circuitpython/lib/tinyusb/src/common/tusb_compiler.h | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/circuitpython/lib/tinyusb/src/common/tusb_compiler.h b/circuitpython/lib/tinyusb/src/common/tusb_compiler.h new file mode 100644 index 0000000..ae00f4e --- /dev/null +++ b/circuitpython/lib/tinyusb/src/common/tusb_compiler.h @@ -0,0 +1,264 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2019 Ha Thach (tinyusb.org) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * This file is part of the TinyUSB stack. + */ + +/** \ingroup Group_Common + * \defgroup Group_Compiler Compiler + * \brief Group_Compiler brief + * @{ */ + +#ifndef _TUSB_COMPILER_H_ +#define _TUSB_COMPILER_H_ + +#define TU_TOKEN(x) x +#define TU_STRING(x) #x ///< stringify without expand +#define TU_XSTRING(x) TU_STRING(x) ///< expand then stringify + +#define TU_STRCAT(a, b) a##b ///< concat without expand +#define TU_STRCAT3(a, b, c) a##b##c ///< concat without expand + +#define TU_XSTRCAT(a, b) TU_STRCAT(a, b) ///< expand then concat +#define TU_XSTRCAT3(a, b, c) TU_STRCAT3(a, b, c) ///< expand then concat 3 tokens + +#define TU_INCLUDE_PATH(_dir,_file) TU_XSTRING( TU_TOKEN(_dir)TU_TOKEN(_file) ) + +#if defined __COUNTER__ && __COUNTER__ != __COUNTER__ + #define _TU_COUNTER_ __COUNTER__ +#else + #define _TU_COUNTER_ __LINE__ +#endif + +// Compile-time Assert +#if defined (__cplusplus) && __cplusplus >= 201103L + #define TU_VERIFY_STATIC static_assert +#elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L + #define TU_VERIFY_STATIC _Static_assert +#elif defined(__CCRX__) + #define TU_VERIFY_STATIC(const_expr, _mess) typedef char TU_XSTRCAT(Line, __LINE__)[(const_expr) ? 1 : 0]; +#else + #define TU_VERIFY_STATIC(const_expr, _mess) enum { TU_XSTRCAT(_verify_static_, _TU_COUNTER_) = 1/(!!(const_expr)) } +#endif + +// for declaration of reserved field, make use of _TU_COUNTER_ +#define TU_RESERVED TU_XSTRCAT(reserved, _TU_COUNTER_) + +#define TU_LITTLE_ENDIAN (0x12u) +#define TU_BIG_ENDIAN (0x21u) + +/*------------------------------------------------------------------*/ +/* Count number of arguments of __VA_ARGS__ + * - reference https://stackoverflow.com/questions/2124339/c-preprocessor-va-args-number-of-arguments + * - _GET_NTH_ARG() takes args >= N (64) but only expand to Nth one (64th) + * - _RSEQ_N() is reverse sequential to N to add padding to have + * Nth position is the same as the number of arguments + * - ##__VA_ARGS__ is used to deal with 0 paramerter (swallows comma) + *------------------------------------------------------------------*/ +#if !defined(__CCRX__) +#define TU_ARGS_NUM(...) _TU_NARG(_0, ##__VA_ARGS__,_RSEQ_N()) +#else +#define TU_ARGS_NUM(...) _TU_NARG(_0, __VA_ARGS__,_RSEQ_N()) +#endif + +#define _TU_NARG(...) _GET_NTH_ARG(__VA_ARGS__) +#define _GET_NTH_ARG( \ + _1, _2, _3, _4, _5, _6, _7, _8, _9,_10, \ + _11,_12,_13,_14,_15,_16,_17,_18,_19,_20, \ + _21,_22,_23,_24,_25,_26,_27,_28,_29,_30, \ + _31,_32,_33,_34,_35,_36,_37,_38,_39,_40, \ + _41,_42,_43,_44,_45,_46,_47,_48,_49,_50, \ + _51,_52,_53,_54,_55,_56,_57,_58,_59,_60, \ + _61,_62,_63,N,...) N +#define _RSEQ_N() \ + 62,61,60, \ + 59,58,57,56,55,54,53,52,51,50, \ + 49,48,47,46,45,44,43,42,41,40, \ + 39,38,37,36,35,34,33,32,31,30, \ + 29,28,27,26,25,24,23,22,21,20, \ + 19,18,17,16,15,14,13,12,11,10, \ + 9,8,7,6,5,4,3,2,1,0 + +// Apply an macro X to each of the arguments with an separated of choice +#define TU_ARGS_APPLY(_X, _s, ...) TU_XSTRCAT(_TU_ARGS_APPLY_, TU_ARGS_NUM(__VA_ARGS__))(_X, _s, __VA_ARGS__) + +#define _TU_ARGS_APPLY_1(_X, _s, _a1) _X(_a1) +#define _TU_ARGS_APPLY_2(_X, _s, _a1, _a2) _X(_a1) _s _X(_a2) +#define _TU_ARGS_APPLY_3(_X, _s, _a1, _a2, _a3) _X(_a1) _s _TU_ARGS_APPLY_2(_X, _s, _a2, _a3) +#define _TU_ARGS_APPLY_4(_X, _s, _a1, _a2, _a3, _a4) _X(_a1) _s _TU_ARGS_APPLY_3(_X, _s, _a2, _a3, _a4) +#define _TU_ARGS_APPLY_5(_X, _s, _a1, _a2, _a3, _a4, _a5) _X(_a1) _s _TU_ARGS_APPLY_4(_X, _s, _a2, _a3, _a4, _a5) +#define _TU_ARGS_APPLY_6(_X, _s, _a1, _a2, _a3, _a4, _a5, _a6) _X(_a1) _s _TU_ARGS_APPLY_5(_X, _s, _a2, _a3, _a4, _a5, _a6) +#define _TU_ARGS_APPLY_7(_X, _s, _a1, _a2, _a3, _a4, _a5, _a6, _a7) _X(_a1) _s _TU_ARGS_APPLY_6(_X, _s, _a2, _a3, _a4, _a5, _a6, _a7) +#define _TU_ARGS_APPLY_8(_X, _s, _a1, _a2, _a3, _a4, _a5, _a6, _a7, _a8) _X(_a1) _s _TU_ARGS_APPLY_7(_X, _s, _a2, _a3, _a4, _a5, _a6, _a7, _a8) + +//--------------------------------------------------------------------+ +// Compiler porting with Attribute and Endian +//--------------------------------------------------------------------+ + +// TODO refactor since __attribute__ is supported across many compiler +#if defined(__GNUC__) + #define TU_ATTR_ALIGNED(Bytes) __attribute__ ((aligned(Bytes))) + #define TU_ATTR_SECTION(sec_name) __attribute__ ((section(#sec_name))) + #define TU_ATTR_PACKED __attribute__ ((packed)) + #define TU_ATTR_WEAK __attribute__ ((weak)) + #define TU_ATTR_ALWAYS_INLINE __attribute__ ((always_inline)) + #define TU_ATTR_DEPRECATED(mess) __attribute__ ((deprecated(mess))) // warn if function with this attribute is used + #define TU_ATTR_UNUSED __attribute__ ((unused)) // Function/Variable is meant to be possibly unused + #define TU_ATTR_USED __attribute__ ((used)) // Function/Variable is meant to be used + + #define TU_ATTR_PACKED_BEGIN + #define TU_ATTR_PACKED_END + #define TU_ATTR_BIT_FIELD_ORDER_BEGIN + #define TU_ATTR_BIT_FIELD_ORDER_END + + // Endian conversion use well-known host to network (big endian) naming + #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ + #define TU_BYTE_ORDER TU_LITTLE_ENDIAN + #else + #define TU_BYTE_ORDER TU_BIG_ENDIAN + #endif + + #define TU_BSWAP16(u16) (__builtin_bswap16(u16)) + #define TU_BSWAP32(u32) (__builtin_bswap32(u32)) + + #ifndef __ARMCC_VERSION + // List of obsolete callback function that is renamed and should not be defined. + // Put it here since only gcc support this pragma + #pragma GCC poison tud_vendor_control_request_cb + #endif + +#elif defined(__TI_COMPILER_VERSION__) + #define TU_ATTR_ALIGNED(Bytes) __attribute__ ((aligned(Bytes))) + #define TU_ATTR_SECTION(sec_name) __attribute__ ((section(#sec_name))) + #define TU_ATTR_PACKED __attribute__ ((packed)) + #define TU_ATTR_WEAK __attribute__ ((weak)) + #define TU_ATTR_ALWAYS_INLINE __attribute__ ((always_inline)) + #define TU_ATTR_DEPRECATED(mess) __attribute__ ((deprecated(mess))) // warn if function with this attribute is used + #define TU_ATTR_UNUSED __attribute__ ((unused)) // Function/Variable is meant to be possibly unused + #define TU_ATTR_USED __attribute__ ((used)) + + #define TU_ATTR_PACKED_BEGIN + #define TU_ATTR_PACKED_END + #define TU_ATTR_BIT_FIELD_ORDER_BEGIN + #define TU_ATTR_BIT_FIELD_ORDER_END + + // __BYTE_ORDER is defined in the TI ARM compiler, but not MSP430 (which is little endian) + #if ((__BYTE_ORDER__) == (__ORDER_LITTLE_ENDIAN__)) || defined(__MSP430__) + #define TU_BYTE_ORDER TU_LITTLE_ENDIAN + #else + #define TU_BYTE_ORDER TU_BIG_ENDIAN + #endif + + #define TU_BSWAP16(u16) (__builtin_bswap16(u16)) + #define TU_BSWAP32(u32) (__builtin_bswap32(u32)) + +#elif defined(__ICCARM__) + #include <intrinsics.h> + #define TU_ATTR_ALIGNED(Bytes) __attribute__ ((aligned(Bytes))) + #define TU_ATTR_SECTION(sec_name) __attribute__ ((section(#sec_name))) + #define TU_ATTR_PACKED __attribute__ ((packed)) + #define TU_ATTR_WEAK __attribute__ ((weak)) + #define TU_ATTR_ALWAYS_INLINE __attribute__ ((always_inline)) + #define TU_ATTR_DEPRECATED(mess) __attribute__ ((deprecated(mess))) // warn if function with this attribute is used + #define TU_ATTR_UNUSED __attribute__ ((unused)) // Function/Variable is meant to be possibly unused + #define TU_ATTR_USED __attribute__ ((used)) // Function/Variable is meant to be used + + #define TU_ATTR_PACKED_BEGIN + #define TU_ATTR_PACKED_END + #define TU_ATTR_BIT_FIELD_ORDER_BEGIN + #define TU_ATTR_BIT_FIELD_ORDER_END + + // Endian conversion use well-known host to network (big endian) naming + #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ + #define TU_BYTE_ORDER TU_LITTLE_ENDIAN + #else + #define TU_BYTE_ORDER TU_BIG_ENDIAN + #endif + + #define TU_BSWAP16(u16) (__iar_builtin_REV16(u16)) + #define TU_BSWAP32(u32) (__iar_builtin_REV(u32)) + +#elif defined(__CCRX__) + #define TU_ATTR_ALIGNED(Bytes) + #define TU_ATTR_SECTION(sec_name) + #define TU_ATTR_PACKED + #define TU_ATTR_WEAK + #define TU_ATTR_ALWAYS_INLINE + #define TU_ATTR_DEPRECATED(mess) + #define TU_ATTR_UNUSED + #define TU_ATTR_USED + + #define TU_ATTR_PACKED_BEGIN _Pragma("pack") + #define TU_ATTR_PACKED_END _Pragma("packoption") + #define TU_ATTR_BIT_FIELD_ORDER_BEGIN _Pragma("bit_order right") + #define TU_ATTR_BIT_FIELD_ORDER_END _Pragma("bit_order") + + // Endian conversion use well-known host to network (big endian) naming + #if defined(__LIT) + #define TU_BYTE_ORDER TU_LITTLE_ENDIAN + #else + #define TU_BYTE_ORDER TU_BIG_ENDIAN + #endif + + #define TU_BSWAP16(u16) ((unsigned short)_builtin_revw((unsigned long)u16)) + #define TU_BSWAP32(u32) (_builtin_revl(u32)) + +#else + #error "Compiler attribute porting is required" +#endif + +#if (TU_BYTE_ORDER == TU_LITTLE_ENDIAN) + + #define tu_htons(u16) (TU_BSWAP16(u16)) + #define tu_ntohs(u16) (TU_BSWAP16(u16)) + + #define tu_htonl(u32) (TU_BSWAP32(u32)) + #define tu_ntohl(u32) (TU_BSWAP32(u32)) + + #define tu_htole16(u16) (u16) + #define tu_le16toh(u16) (u16) + + #define tu_htole32(u32) (u32) + #define tu_le32toh(u32) (u32) + +#elif (TU_BYTE_ORDER == TU_BIG_ENDIAN) + + #define tu_htons(u16) (u16) + #define tu_ntohs(u16) (u16) + + #define tu_htonl(u32) (u32) + #define tu_ntohl(u32) (u32) + + #define tu_htole16(u16) (TU_BSWAP16(u16)) + #define tu_le16toh(u16) (TU_BSWAP16(u16)) + + #define tu_htole32(u32) (TU_BSWAP32(u32)) + #define tu_le32toh(u32) (TU_BSWAP32(u32)) + +#else + #error Byte order is undefined +#endif + +#endif /* _TUSB_COMPILER_H_ */ + +/// @} |