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drivers: entropy: nrf5: Use nrf_rng hal for registers w sideeffects

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To enable for easier testing, replace direct use of registers
from Nordic's nrfx MDK with accesses via its HAL inlined functions

Signed-off-by: Alberto Escolar Piedras <alpi@oticon.com>
This commit is contained in:
Alberto Escolar Piedras 2018-04-17 16:33:16 +02:00 committed by Carles Cufí
parent 532201980d
commit 78bf7518a9
1 changed files with 4 additions and 12 deletions
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16
drivers/entropy/entropy_nrf5.c
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@ -8,6 +8,7 @@
#include <entropy.h>
#include <atomic.h>
#include <soc.h>
#include "nrf_rng.h"
/*
* The nRF5 RNG HW has several characteristics that need to be taken
@ -161,10 +162,7 @@ static inline u8_t get(struct rand *rng, u8_t octets, u8_t *rand)
}
if (remaining < rng->threshold) {
NRF_RNG->TASKS_START = 1;
#if defined(CONFIG_BOARD_NRFXX_NWTSIM)
NRF_RNG_regw_sideeffects();
#endif
nrf_rng_task_trigger(NRF_RNG_TASK_START);
}
return octets;
@ -228,10 +226,7 @@ static void isr_rand(void *arg)
NRF_RNG->EVENTS_VALRDY = 0;
if (ret != -EBUSY) {
NRF_RNG->TASKS_STOP = 1;
#if defined(CONFIG_BOARD_NRFXX_NWTSIM)
NRF_RNG_regw_sideeffects();
#endif
nrf_rng_task_trigger(NRF_RNG_TASK_STOP);
}
}
}
@ -330,10 +325,7 @@ static int entropy_nrf5_init(struct device *device)
NRF_RNG->EVENTS_VALRDY = 0;
NRF_RNG->INTENSET = RNG_INTENSET_VALRDY_Msk;
NRF_RNG->TASKS_START = 1;
#if defined(CONFIG_BOARD_NRFXX_NWTSIM)
NRF_RNG_regw_sideeffects();
#endif
nrf_rng_task_trigger(NRF_RNG_TASK_START);
IRQ_CONNECT(NRF5_IRQ_RNG_IRQn, CONFIG_ENTROPY_NRF5_PRI, isr_rand,
DEVICE_GET(entropy_nrf5), 0);