diff options
Diffstat (limited to 'core')
| -rw-r--r-- | core/cortex-m/atomic.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/core/cortex-m/atomic.h b/core/cortex-m/atomic.h index 736d5887b4..1f432e8d1e 100644 --- a/core/cortex-m/atomic.h +++ b/core/cortex-m/atomic.h @@ -10,6 +10,9 @@ #include "common.h" +typedef int atomic_t; +typedef atomic_t atomic_val_t; + /** * Implements atomic arithmetic operations on 32-bit integers. * @@ -42,23 +45,43 @@ static inline void deprecated_atomic_clear_bits(uint32_t volatile *addr, ATOMIC_OP(bic, addr, bits); } +static inline void atomic_clear_bits(atomic_t *addr, atomic_val_t bits) +{ + __atomic_fetch_and(addr, ~bits, __ATOMIC_SEQ_CST); +} + static inline void deprecated_atomic_or(uint32_t volatile *addr, uint32_t bits) { ATOMIC_OP(orr, addr, bits); } +static inline atomic_val_t atomic_or(atomic_t *addr, atomic_val_t bits) +{ + return __atomic_fetch_or(addr, bits, __ATOMIC_SEQ_CST); +} + static inline void deprecated_atomic_add(uint32_t volatile *addr, uint32_t value) { ATOMIC_OP(add, addr, value); } +static inline atomic_val_t atomic_add(atomic_t *addr, atomic_val_t value) +{ + return __atomic_fetch_add(addr, value, __ATOMIC_SEQ_CST); +} + static inline void deprecated_atomic_sub(uint32_t volatile *addr, uint32_t value) { ATOMIC_OP(sub, addr, value); } +static inline atomic_val_t atomic_sub(atomic_t *addr, atomic_val_t value) +{ + return __atomic_fetch_sub(addr, value, __ATOMIC_SEQ_CST); +} + static inline uint32_t deprecated_atomic_read_clear(uint32_t volatile *addr) { uint32_t ret, tmp; @@ -73,4 +96,10 @@ static inline uint32_t deprecated_atomic_read_clear(uint32_t volatile *addr) return ret; } + +static inline atomic_val_t atomic_read_clear(atomic_t *addr) +{ + return __atomic_exchange_n(addr, 0, __ATOMIC_SEQ_CST); +} + #endif /* __CROS_EC_ATOMIC_H */ |