mirror of
https://github.com/zephyrproject-rtos/zephyr
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97b3bd11a7
Rename reserved function names in drivers/ subdirectory. Update function macros concatenatenating function names with '##'. As there is a conflict between the existing gpio_sch_manage_callback() and _gpio_sch_manage_callback() names, leave the latter unmodified. Signed-off-by: Patrik Flykt <patrik.flykt@intel.com>
36 lines
861 B
C
36 lines
861 B
C
/*
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* Copyright (c) 2013-2014 Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief Non-random number generator based on x86 CPU timestamp
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*
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* This module provides a non-random implementation of sys_rand32_get(), which
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* is not meant to be used in a final product as a truly random number
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* generator. It was provided to allow testing on a platform that does not (yet)
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* provide a random number generator.
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*/
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#include <kernel.h>
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#include <arch/cpu.h>
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#include <random/rand32.h>
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/**
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*
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* @brief Get a 32 bit random number
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*
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* The non-random number generator returns values that are based off the
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* CPU's timestamp counter, which means that successive calls will normally
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* display ever-increasing values.
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*
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* @return a 32-bit number
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*/
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u32_t sys_rand32_get(void)
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{
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return z_do_read_cpu_timestamp32();
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}
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