969f8f1c68
move entropy.h to drivers/entropy.h and create a shim for backward-compatibility. No functional changes to the headers. A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES. Related to #16539 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
56 lines
1.1 KiB
C
56 lines
1.1 KiB
C
/*
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* Copyright (c) 2016 ARM Ltd.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr.h>
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#include <drivers/entropy.h>
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#include <stdio.h>
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void main(void)
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{
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struct device *dev;
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printf("Entropy Example! %s\n", CONFIG_ARCH);
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dev = device_get_binding(CONFIG_ENTROPY_NAME);
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if (!dev) {
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printf("error: no entropy device\n");
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return;
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}
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printf("entropy device is %p, name is %s\n",
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dev, dev->config->name);
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while (1) {
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#define BUFFER_LENGTH 10
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u8_t buffer[BUFFER_LENGTH] = {0};
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int r;
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/* The BUFFER_LENGTH-1 is used so the driver will not
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* write the last byte of the buffer. If that last
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* byte is not 0 on return it means the driver wrote
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* outside the passed buffer, and that should never
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* happen.
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*/
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r = entropy_get_entropy(dev, buffer, BUFFER_LENGTH-1);
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if (r) {
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printf("entropy_get_entropy failed: %d\n", r);
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break;
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}
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if (buffer[BUFFER_LENGTH-1] != 0U) {
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printf("entropy_get_entropy buffer overflow\n");
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}
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for (int i = 0; i < BUFFER_LENGTH-1; i++) {
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printf(" 0x%02x", buffer[i]);
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}
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printf("\n");
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k_sleep(1000);
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}
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}
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