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#ifndef WIFI_ATOMIC_H_
#define WIFI_ATOMIC_H_
#include "util.h"
static inline void __atomic_bit_clear(uint8_t *d, const uint8_t bit)
{
*d &= ~(1 << bit);
}
static inline void atomic_bit_clear(uint8_t *d, const uint8_t bit)
{
uint8_t sreg = irq_disable_save();
__atomic_bit_clear(d, bit);
irq_restore(sreg);
}
static inline void __atomic_bit_set(uint8_t *d, const uint8_t bit)
{
*d |= (1 << bit);
}
static inline void atomic_bit_set(uint8_t *d, const uint8_t bit)
{
uint8_t sreg = irq_disable_save();
__atomic_bit_set(d, bit);
irq_restore(sreg);
}
static inline void __atomic_bit_flip(uint8_t *d, const uint8_t bit)
{
*d ^= (1 << bit);
}
static inline void atomic_bit_flip(uint8_t *d, const uint8_t bit)
{
uint8_t sreg = irq_disable_save();
__atomic_bit_flip(d, bit);
irq_restore(sreg);
}
static inline bool __atomic_bit_test(const uint8_t *d, const uint8_t bit)
{
return !!(*d & (1 << bit));
}
static inline bool atomic_bit_test(const uint8_t *d, const uint8_t bit)
{
/* Reading an 8bit value from SRAM is atomic.
* No need to disable IRQs. */
return __atomic_bit_test(d, bit);
}
static inline bool atomic_bit_test_and_clear(uint8_t *d, const uint8_t bit)
{
uint8_t sreg;
bool result;
sreg = irq_disable_save();
result = __atomic_bit_test(d, bit);
__atomic_bit_clear(d, bit);
irq_restore(sreg);
return result;
}
#endif /* WIFI_ATOMIC_H_ */
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