2 * This file is part of the libsigrok project.
4 * Copyright (C) 2020 Gerhard Sittig <gerhard.sittig@gmx.net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
22 #include <libsigrok/libsigrok.h>
26 #include "libsigrok-internal.h"
28 static const uint8_t buff1234[] = {
29 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88,
31 static const uint8_t buff8125fb[] = {
32 0x41, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
34 static const uint8_t buff8125fl[] = {
35 0x00, 0x00, 0x02, 0x41, 0x00, 0x00, 0x00, 0x00,
37 static const uint8_t buff1234large[] = {
38 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
39 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
40 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
41 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20,
42 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
43 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30,
44 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
45 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40,
48 START_TEST(test_endian_macro)
54 p8 = (const void *)&buff1234[0];
55 fail_unless(R8(&p8[0]) == 0x11);
56 fail_unless(R8(&p8[1]) == 0x22);
57 fail_unless(R8(&p8[2]) == 0x33);
58 fail_unless(R8(&p8[3]) == 0x44);
60 p16 = (const void *)&buff1234[0];
61 fail_unless(RB16(&p16[0]) == 0x1122);
62 fail_unless(RB16(&p16[1]) == 0x3344);
64 p16 = (const void *)&buff1234[0];
65 fail_unless(RL16(&p16[0]) == 0x2211);
66 fail_unless(RL16(&p16[1]) == 0x4433);
68 p32 = (const void *)&buff1234[0];
69 fail_unless(RB32(&p32[0]) == 0x11223344);
70 fail_unless(RB32(&p32[1]) == 0x55667788);
72 p32 = (const void *)&buff1234[0];
73 fail_unless(RL32(&p32[0]) == 0x44332211);
74 fail_unless(RL32(&p32[1]) == 0x88776655);
76 p16 = (const void *)&buff1234[0];
77 fail_unless(RB16(p16++) == 0x1122);
78 fail_unless(RB16(p16++) == 0x3344);
82 START_TEST(test_endian_read)
84 fail_unless(read_u8(&buff1234[0]) == 0x11);
85 fail_unless(read_u8(&buff1234[3]) == 0x44);
86 fail_unless(read_u8(&buff1234[7]) == 0x88);
88 fail_unless(read_u16be(&buff1234[0]) == 0x1122);
89 fail_unless(read_u16be(&buff1234[6]) == 0x7788);
91 fail_unless(read_u16le(&buff1234[0]) == 0x2211);
92 fail_unless(read_u16le(&buff1234[6]) == 0x8877);
94 fail_unless(read_i16be(&buff1234[6]) == 0x7788);
95 fail_unless(read_i16le(&buff1234[6]) == (int16_t)0x8877);
97 fail_unless(read_u32be(&buff1234[0]) == 0x11223344);
98 fail_unless(read_u32be(&buff1234[4]) == 0x55667788);
100 fail_unless(read_u32le(&buff1234[0]) == 0x44332211);
101 fail_unless(read_u32le(&buff1234[4]) == 0x88776655);
103 fail_unless(read_i32be(&buff1234[0]) == 0x11223344);
104 fail_unless(read_i32be(&buff1234[4]) == 0x55667788);
105 fail_unless(read_i32le(&buff1234[4]) == (int32_t)0x88776655ull);
107 fail_unless(read_u64be(&buff1234[0]) == 0x1122334455667788ull);
108 fail_unless(read_u64le(&buff1234[0]) == 0x8877665544332211ull);
109 fail_unless(read_i64be(&buff1234[0]) == 0x1122334455667788ull);
110 fail_unless(read_i64le(&buff1234[0]) == (int64_t)0x8877665544332211ull);
112 fail_unless(read_fltbe(&buff8125fb[0]) == 8.125);
113 fail_unless(read_fltle(&buff8125fl[0]) == 8.125);
117 START_TEST(test_endian_read_inc_len)
122 /* Position to the start of the input stream. */
124 l = sizeof(buff1234);
126 /* Read several fields of known type and values. */
128 fail_unless(read_u8_inc_len(&p, &l) == 0x11);
130 fail_unless(read_u8_inc_len(&p, &l) == 0x22);
132 fail_unless(read_u16le_inc_len(&p, &l) == 0x4433);
134 fail_unless(read_u16le_inc_len(&p, &l) == 0x6655);
136 fail_unless(read_u16le_inc_len(&p, &l) == 0x8877);
139 /* Read beyond the end of the input stream. */
140 fail_unless(read_u8_inc_len(&p, &l) == 0x0);
142 fail_unless(read_u16le_inc_len(&p, &l) == 0x0);
147 START_TEST(test_endian_read_inc)
152 fail_unless(read_u8_inc(&p) == 0x11);
153 fail_unless(read_u8_inc(&p) == 0x22);
154 fail_unless(read_u8_inc(&p) == 0x33);
155 fail_unless(p == &buff1234[3 * sizeof(uint8_t)]);
158 fail_unless(read_u16be_inc(&p) == 0x1122);
159 fail_unless(read_u16be_inc(&p) == 0x3344);
160 fail_unless(p == &buff1234[2 * sizeof(uint16_t)]);
163 fail_unless(read_u16le_inc(&p) == 0x2211);
164 fail_unless(read_u16le_inc(&p) == 0x4433);
165 fail_unless(p == &buff1234[2 * sizeof(uint16_t)]);
168 fail_unless(read_u24le_inc(&p) == 0x332211);
169 fail_unless(read_u24le_inc(&p) == 0x665544);
170 fail_unless(p == &buff1234[2 * 3 * sizeof(uint8_t)]);
173 fail_unless(read_u32be_inc(&p) == 0x11223344ul);
174 fail_unless(read_u32be_inc(&p) == 0x55667788ul);
175 fail_unless(p == &buff1234[2 * sizeof(uint32_t)]);
178 fail_unless(read_u32le_inc(&p) == 0x44332211ul);
179 fail_unless(read_u32le_inc(&p) == 0x88776655ul);
180 fail_unless(p == &buff1234[2 * sizeof(uint32_t)]);
183 fail_unless(read_u64be_inc(&p) == 0x1122334455667788);
184 fail_unless(p == &buff1234[sizeof(uint64_t)]);
187 fail_unless(read_u64le_inc(&p) == 0x8877665544332211ull);
188 fail_unless(p == &buff1234[sizeof(uint64_t)]);
192 START_TEST(test_endian_write)
194 uint8_t buff[2 * sizeof(uint64_t)];
196 memset(buff, 0, sizeof(buff));
197 write_u8(&buff[0], 0x11);
198 fail_unless(memcmp(&buff[0], &buff1234[0], sizeof(uint8_t)) == 0);
200 memset(buff, 0, sizeof(buff));
201 write_u8(&buff[0], 0x22);
202 write_u8(&buff[1], 0x33);
203 write_u8(&buff[2], 0x44);
204 write_u8(&buff[3], 0x55);
205 fail_unless(memcmp(&buff[0], &buff1234[1], 4 * sizeof(uint8_t)) == 0);
207 memset(buff, 0, sizeof(buff));
208 write_u16be(&buff[0 * sizeof(uint16_t)], 0x1122);
209 write_u16be(&buff[1 * sizeof(uint16_t)], 0x3344);
210 fail_unless(memcmp(&buff[0], &buff1234[0], 2 * sizeof(uint16_t)) == 0);
212 memset(buff, 0, sizeof(buff));
213 write_u16le(&buff[0 * sizeof(uint16_t)], 0x4433);
214 write_u16le(&buff[1 * sizeof(uint16_t)], 0x6655);
215 fail_unless(memcmp(&buff[0], &buff1234[2], 2 * sizeof(uint16_t)) == 0);
217 memset(buff, 0, sizeof(buff));
218 write_u32be(&buff[0 * sizeof(uint32_t)], 0x11223344);
219 write_u32be(&buff[1 * sizeof(uint32_t)], 0x55667788);
220 fail_unless(memcmp(&buff[0], &buff1234[0], 2 * sizeof(uint32_t)) == 0);
222 memset(buff, 0, sizeof(buff));
223 write_u32le(&buff[0 * sizeof(uint32_t)], 0x44332211);
224 write_u32le(&buff[1 * sizeof(uint32_t)], 0x88776655);
225 fail_unless(memcmp(&buff[0], &buff1234[0], 2 * sizeof(uint32_t)) == 0);
227 memset(buff, 0, sizeof(buff));
228 write_fltbe(&buff[0], 8.125);
229 fail_unless(memcmp(&buff[0], &buff8125fb[0], sizeof(float)) == 0);
231 memset(buff, 0, sizeof(buff));
232 write_fltle(&buff[0], 8.125);
233 fail_unless(memcmp(&buff[0], &buff8125fl[0], sizeof(float)) == 0);
237 START_TEST(test_endian_write_inc)
239 uint8_t buff[3 * sizeof(uint64_t)];
243 memset(buff, 0, sizeof(buff));
246 write_u8_inc(&p, 0x11);
247 write_u16be_inc(&p, 0x2233);
248 write_u32be_inc(&p, 0x44556677);
250 fail_unless(l == sizeof(uint8_t) + sizeof(uint16_t) + sizeof(uint32_t));
251 fail_unless(memcmp(&buff[0], &buff1234[0], l) == 0);
254 write_u48le_inc(&p, 0x060504030201);
255 write_u48le_inc(&p, 0x0c0b0a090807);
256 write_u48le_inc(&p, 0x1211100f0e0d);
257 write_u48le_inc(&p, 0x181716151413);
259 fail_unless(l == 4 * 48 / 8 * sizeof(uint8_t));
260 fail_unless(memcmp(&buff[0], &buff1234large[0], l) == 0);
263 write_u24le_inc(&p, 0xfe030201);
264 write_u40le_inc(&p, 0xdcba0807060504ul);
266 fail_unless(l == 24 / 8 + 40 / 8);
267 fail_unless(memcmp(&buff[0], &buff1234large[0], l) == 0);
271 Suite *suite_conv(void)
276 s = suite_create("conv");
278 tc = tcase_create("endian");
279 tcase_add_test(tc, test_endian_macro);
280 tcase_add_test(tc, test_endian_read);
281 tcase_add_test(tc, test_endian_read_inc);
282 tcase_add_test(tc, test_endian_read_inc_len);
283 tcase_add_test(tc, test_endian_write);
284 tcase_add_test(tc, test_endian_write_inc);
285 suite_add_tcase(s, tc);