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drivers: entropy: Add nRF5 entropy generator driver

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Origin: Original

Signed-off-by: Thiago Silveira <thiago@exati.com.br>
Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
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Thiago Silveira 2017-09-19 05:01:27 -03:00 • committed by Anas Nashif
commit 912a51957e
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drivers/entropy/Kconfig.nrf5 Normal file
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# Kconfig.nrf5 - nRF5 entropy generator driver configuration
#
# Copyright (c) 2017 Nordic Semiconductor ASA
# Copyright (c) 2017 Exati Tecnologia Ltda.
#
# SPDX-License-Identifier: Apache-2.0
menuconfig ENTROPY_NRF5_RNG
bool "nRF5 RNG driver"
# FIXME: nRF5 RNG driver can't co-exist with Bluetooth's HAL
# implementation yet
depends on ENTROPY_GENERATOR && !BT
select ENTROPY_HAS_DRIVER
help
This option enables the RNG peripheral, which is a random number
generator, based on internal thermal noise, that provides a
random 8-bit value to the host when read.
config ENTROPY_NRF5_BIAS_CORRECTION
bool "Enable bias correction (uniform distribution)"
depends on ENTROPY_NRF5_RNG
help
This option enables the RNG bias correction, which guarantees a
uniform distribution of 0 and 1. When this option is enabled, the time
to generate a byte cannot be guaranteed.