unleashed-firmware/core/furi/common_defines.h
あく 418c0939a0
Guard RCC registers access with critical section (#854)
* Core: critical section macros. FuriHal: guard rcc registers access with critical section, fix condition race.
* FuriHal: update documentation.

Co-authored-by: SG <who.just.the.doctor@gmail.com>
2021-12-01 01:07:17 +03:00

83 lines
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1.8 KiB
C

#pragma once
#ifndef MAX
#define MAX(a, b) \
({ \
__typeof__(a) _a = (a); \
__typeof__(b) _b = (b); \
_a > _b ? _a : _b; \
})
#endif
#ifndef MIN
#define MIN(a, b) \
({ \
__typeof__(a) _a = (a); \
__typeof__(b) _b = (b); \
_a < _b ? _a : _b; \
})
#endif
#ifndef ROUND_UP_TO
#define ROUND_UP_TO(a, b) \
({ \
__typeof__(a) _a = (a); \
__typeof__(b) _b = (b); \
_a / _b + !!(_a % _b); \
})
#endif
#ifndef CLAMP
#define CLAMP(x, upper, lower) (MIN(upper, MAX(x, lower)))
#endif
// need some common semantics for those two
#ifndef SIZEOF_ARRAY
#define SIZEOF_ARRAY(arr) (sizeof(arr) / sizeof(arr[0]))
#endif
#ifndef COUNT_OF
#define COUNT_OF(x) (sizeof(x) / sizeof(x[0]))
#endif
#ifndef FURI_SWAP
#define FURI_SWAP(x, y) \
do { \
typeof(x) SWAP = x; \
x = y; \
y = SWAP; \
} while(0)
#endif
#ifndef PLACE_IN_SECTION
#define PLACE_IN_SECTION(x) __attribute__((section(x)))
#endif
#ifndef ALIGN
#define ALIGN(n) __attribute__((aligned(n)))
#endif
#ifndef STRINGIFY
#define STRINGIFY(x) #x
#endif
#ifndef TOSTRING
#define TOSTRING(x) STRINGIFY(x)
#endif
#ifndef REVERSE_BYTES_U32
#define REVERSE_BYTES_U32(x) \
((((x)&0x000000FF) << 24) | (((x)&0x0000FF00) << 8) | (((x)&0x00FF0000) >> 8) | \
(((x)&0xFF000000) >> 24))
#endif
#ifndef FURI_CRITICAL_ENTER
#define FURI_CRITICAL_ENTER() \
uint32_t primask_bit = __get_PRIMASK(); \
__disable_irq()
#endif
#ifndef FURI_CRITICAL_EXIT
#define FURI_CRITICAL_EXIT() __set_PRIMASK(primask_bit)
#endif