diff options
Diffstat (limited to 'include/math_util.h')
| -rw-r--r-- | include/math_util.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/math_util.h b/include/math_util.h index b78523de54..9ee075839e 100644 --- a/include/math_util.h +++ b/include/math_util.h @@ -9,6 +9,7 @@ #define __CROS_EC_MATH_UTIL_H #include <stdint.h> +#include "limits.h" #ifdef CONFIG_FPU typedef float fp_t; @@ -230,4 +231,13 @@ void rotate_inv(const intv3_t v, const mat33_fp_t R, intv3_t res); */ int round_divide(int64_t dividend, int divisor); +/** + * Create a 64 bit bitmask of 2^offset + */ +#if ULONG_MAX == 0xFFFFFFFFUL +uint64_t bitmask_uint64(int offset); +#else +#define bitmask_uint64(o) ((uint64_t)1 << (o)) +#endif + #endif /* __CROS_EC_MATH_UTIL_H */ |