utils.h 2.0 KB

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  1. /*
  2. * Copyright (c) 2020, Alex Taradov <alex@taradov.com>
  3. * All rights reserved.
  4. *
  5. * Redistribution and use in source and binary forms, with or without
  6. * modification, are permitted provided that the following conditions are met:
  7. *
  8. * 1. Redistributions of source code must retain the above copyright notice,
  9. * this list of conditions and the following disclaimer.
  10. * 2. Redistributions in binary form must reproduce the above copyright
  11. * notice, this list of conditions and the following disclaimer in the
  12. * documentation and/or other materials provided with the distribution.
  13. * 3. The name of the author may not be used to endorse or promote products
  14. * derived from this software without specific prior written permission.
  15. *
  16. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  17. * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19. * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  20. * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22. * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23. * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24. * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26. * POSSIBILITY OF SUCH DAMAGE.
  27. */
  28. #ifndef _UTILS_H_
  29. #define _UTILS_H_
  30. /*- Definitions -------------------------------------------------------------*/
  31. #define PACK __attribute__((packed))
  32. #define WEAK __attribute__((weak))
  33. #define INLINE static inline __attribute__((always_inline))
  34. static inline int LIMIT(int a, int b)
  35. {
  36. return (a > b) ? b : a;
  37. }
  38. #define ATOMIC_SECTION_ENTER \
  39. { \
  40. uint32_t __atomic = __get_PRIMASK(); \
  41. __disable_irq();
  42. #define ATOMIC_SECTION_LEAVE \
  43. __set_PRIMASK(__atomic); \
  44. }
  45. #endif // _UTILS_H_