diff options
Diffstat (limited to 'components/drivers/include')
| -rw-r--r-- | components/drivers/include/drivers/misc.h | 71 |
1 files changed, 63 insertions, 8 deletions
diff --git a/components/drivers/include/drivers/misc.h b/components/drivers/include/drivers/misc.h index ea962a2cc8..2b4b0a5443 100644 --- a/components/drivers/include/drivers/misc.h +++ b/components/drivers/include/drivers/misc.h @@ -23,6 +23,10 @@ #define RT_DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) +#define RT_DIV_ROUND_DOWN_ULL(ll, d) ({ rt_uint64_t _tmp = (ll); rt_do_div(_tmp, d); _tmp; }) + +#define RT_DIV_ROUND_UP_ULL(ll, d) RT_DIV_ROUND_DOWN_ULL((rt_uint64_t)(ll) + (d) - 1, (d)) + #define RT_DIV_ROUND_CLOSEST(x, divisor) \ ({ \ typeof(x) __x = x; \ @@ -34,6 +38,14 @@ (((__x) - ((__d) / 2)) / (__d)); \ }) +#define RT_DIV_ROUND_CLOSEST_ULL(x, divisor) \ +({ \ + typeof(divisor) __d = divisor; \ + rt_uint64_t _tmp = (x) + (__d) / 2; \ + rt_do_div(_tmp, __d); \ + _tmp; \ +}) + #define __KEY_PLACEHOLDER_1 0, #define ____KEY_ENABLED(__ignored, val, ...) val #define ___KEY_ENABLED(arg1_or_junk) ____KEY_ENABLED(arg1_or_junk 1, 0) @@ -103,14 +115,12 @@ #define rt_clamp(val, lo, hi) rt_min((typeof(val))rt_max(val, lo), hi) -#define rt_do_div(n, base) \ -({ \ - rt_uint32_t _base = (base), _rem; \ - _rem = ((rt_uint64_t)(n)) % _base; \ - (n) = ((rt_uint64_t)(n)) / _base; \ - if (_rem > _base / 2) \ - ++(n); \ - _rem; \ +#define rt_do_div(n, base) \ +({ \ + rt_uint32_t _base = (base); \ + rt_uint32_t _rem = (rt_uint64_t)(n) % _base; \ + (n) = (rt_uint64_t)(n) / _base; \ + _rem; \ }) #define rt_abs(x) \ @@ -129,6 +139,18 @@ ret; \ }) +#define rt_roundup(x, y) \ +({ \ + typeof(y) __y = y; \ + (((x) + (__y - 1)) / __y) * __y; \ +}) + +#define rt_rounddown(x, y) \ +({ \ + typeof(x) __x = (x); \ + __x - (__x % (y)); \ +}) + #ifndef rt_ilog2 rt_inline int rt_ilog2(rt_ubase_t v) { @@ -143,4 +165,37 @@ rt_inline int rt_ilog2(rt_ubase_t v) } #endif /* !rt_ilog2 */ +#ifndef rt_bcd2bin +rt_inline rt_ubase_t rt_bcd2bin(rt_uint8_t val) +{ + return (val & 0x0f) + (val >> 4) * 10; +} +#endif /* !rt_bcd2bin */ + +#ifndef rt_bin2bcd +rt_inline rt_uint8_t rt_bin2bcd(rt_ubase_t val) +{ + return ((val / 10) << 4) + val % 10; +} +#endif /* !rt_bin2bcd */ + +#ifndef rt_div_u64_rem +rt_inline rt_uint64_t rt_div_u64_rem(rt_uint64_t dividend, rt_uint32_t divisor, + rt_uint32_t *remainder) +{ + *remainder = dividend % divisor; + + return dividend / divisor; +} +#endif /* !rt_div_u64_rem */ + +#ifndef rt_div_u64 +rt_inline rt_uint64_t rt_div_u64(rt_uint64_t dividend, rt_uint32_t divisor) +{ + rt_uint32_t remainder; + + return rt_div_u64_rem(dividend, divisor, &remainder); +} +#endif /* !rt_div_u64 */ + #endif /* __MISC_H__ */ |