zephyr/drivers/random/Kconfig

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# Kconfig - random generator driver configuration options
#
# Copyright (c) 2014-2015 Wind River Systems, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
menu "Random Generation Configuration"
config RANDOM_GENERATOR
bool
prompt "Custom random generator"
default n
help
This option signifies that the target uses a real random number
generator.
config TEST_RANDOM_GENERATOR
bool
prompt "Non-random number generator"
depends on !RANDOM_GENERATOR
default n
help
This option signifies that the kernel's random number APIs are
permitted to return values that are not truly random.
This capability is provided for testing purposes, when a truly random
number generator is not available. The non-random number generator
should not be used in a production environment.
config X86_TSC_RANDOM_GENERATOR
bool
prompt "x86 timestamp counter based number generator"
depends on TEST_RANDOM_GENERATOR && X86
default y
help
This options enables number generator based on timestamp counter
of x86 platform, obtained with rdtsc instruction.
config TIMER_RANDOM_GENERATOR
bool
prompt "System timer clock based number generator"
depends on TEST_RANDOM_GENERATOR && !X86_TSC_RANDOM_GENERATOR
default y
help
This options enables number generator based on system timer
clock. This number generator is not random and used for
testing only.
endmenu