[infiniband] Use "%d" as format specifier for LIDs
[ipxe.git] / src / tests / entropy_sample.c
1 /*
2 * Copyright (C) 2012 Michael Brown <mbrown@fensystems.co.uk>.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17 * 02110-1301, USA.
18 *
19 * You can also choose to distribute this program under the terms of
20 * the Unmodified Binary Distribution Licence (as given in the file
21 * COPYING.UBDL), provided that you have satisfied its requirements.
22 */
23
24 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
25
26 /** @file
27 *
28 * Entropy sampling
29 *
30 */
31
32 #include <stdio.h>
33 #include <ipxe/entropy.h>
34 #include <ipxe/test.h>
35
36 /** Total number of test samples */
37 #define SAMPLE_COUNT 65536
38
39 /** Number of samples per block */
40 #define SAMPLE_BLOCKSIZE 256
41
42 /**
43 * Generate entropy samples for external testing
44 *
45 */
46 static void entropy_sample_test_exec ( void ) {
47 static noise_sample_t samples[SAMPLE_BLOCKSIZE];
48 unsigned int i;
49 unsigned int j;
50 int rc;
51
52 /* Collect and print blocks of samples */
53 for ( i = 0 ; i < ( SAMPLE_COUNT / SAMPLE_BLOCKSIZE ) ; i++ ) {
54
55 /* Collect one block of samples */
56 rc = entropy_enable();
57 ok ( rc == 0 );
58 for ( j = 0 ; j < SAMPLE_BLOCKSIZE ; j++ ) {
59 rc = get_noise ( &samples[j] );
60 ok ( rc == 0 );
61 }
62 entropy_disable();
63
64 /* Print out sample values */
65 for ( j = 0 ; j < SAMPLE_BLOCKSIZE ; j++ ) {
66 printf ( "SAMPLE %d %d\n", ( i * SAMPLE_BLOCKSIZE + j ),
67 samples[j] );
68 }
69 }
70 }
71
72 /** Entropy sampling self-test */
73 struct self_test entropy_sample_test __self_test = {
74 .name = "entropy_sample",
75 .exec = entropy_sample_test_exec,
76 };