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rng: add irq enable/disable helper.

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This commit is contained in:
Guillaume Revaillot 2019-02-05 14:34:08 +01:00 committed by Karl Palsson
parent e2ac1a6358
commit 64baacfbbf
2 changed files with 16 additions and 0 deletions
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2
include/libopencm3/stm32/common/rng_common_v1.h
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@ -75,6 +75,8 @@ BEGIN_DECLS
void rng_enable(void); void rng_enable(void);
void rng_disable(void); void rng_disable(void);
void rng_interrupt_enable(void);
void rng_interrupt_disable(void);
bool rng_get_random(uint32_t *rand_nr); bool rng_get_random(uint32_t *rand_nr);
uint32_t rng_get_random_blocking(void); uint32_t rng_get_random_blocking(void);

14
lib/stm32/common/rng_common_v1.c
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@ -44,6 +44,20 @@ void rng_enable(void)
RNG_CR |= RNG_CR_RNGEN; RNG_CR |= RNG_CR_RNGEN;
} }
/** Enable the Random Number Generator error interrupt.
*/
void rng_interrupt_enable(void)
{
RNG_CR |= RNG_CR_IE;
}
/** Disable the Random Number Generator error interrupt.
*/
void rng_interrupt_disable(void)
{
RNG_CR &= ~RNG_CR_IE;
}
/** Randomizes a number (non-blocking). /** Randomizes a number (non-blocking).
* Can fail if a clock error or seed error is detected. Consult the Reference * Can fail if a clock error or seed error is detected. Consult the Reference
* Manual, but "try again", potentially after resetting the peripheral * Manual, but "try again", potentially after resetting the peripheral