tests/check_input_binary.c

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2013 Uwe Hermann <uwe@hermann-uwe.de>
   5  *
   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.
  10  *
  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.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #include <check.h>
  22 #include <glib/gstdio.h>
  23 #include "../libsigrok.h"
  24 #include "lib.h"
  25
  26 #define FILENAME                "foo.dat"
  27 #define MAX_FILESIZE            (1 * 1000000)
  28
  29 #define CHECK_ALL_LOW           0
  30 #define CHECK_ALL_HIGH          1
  31 #define CHECK_HELLO_WORLD       2
  32
  33 static struct sr_context *sr_ctx;
  34
  35 static uint64_t df_packet_counter = 0, sample_counter = 0;
  36 static gboolean have_seen_df_end = FALSE;
  37 static GArray *logic_channellist = NULL;
  38 static int check_to_perform;
  39 static uint64_t expected_samples;
  40 static uint64_t *expected_samplerate;
  41
  42 static void setup(void)
  43 {
  44         int ret;
  45
  46         ret = sr_init(&sr_ctx);
  47         fail_unless(ret == SR_OK, "sr_init() failed: %d.", ret);
  48 }
  49
  50 static void teardown(void)
  51 {
  52         int ret;
  53
  54         ret = sr_exit(sr_ctx);
  55         fail_unless(ret == SR_OK, "sr_exit() failed: %d.", ret);
  56 }
  57
  58 static void check_all_low(const struct sr_datafeed_logic *logic)
  59 {
  60         uint64_t i;
  61         uint8_t *data;
  62
  63         for (i = 0; i < logic->length; i++) {
  64                 data = logic->data;
  65                 if (data[i * logic->unitsize] != 0)
  66                         fail("Logic data was not all-0x00.");
  67         }
  68 }
  69
  70 static void check_all_high(const struct sr_datafeed_logic *logic)
  71 {
  72         uint64_t i;
  73         uint8_t *data;
  74
  75         for (i = 0; i < logic->length; i++) {
  76                 data = logic->data;
  77                 if (data[i * logic->unitsize] != 0xff)
  78                         fail("Logic data was not all-0xff.");
  79         }
  80 }
  81
  82 static void check_hello_world(const struct sr_datafeed_logic *logic)
  83 {
  84         uint64_t i;
  85         uint8_t *data, b;
  86         const char *h = "Hello world";
  87
  88         for (i = 0; i < logic->length; i++) {
  89                 data = logic->data;
  90                 b = data[sample_counter + i];
  91                 if (b != h[sample_counter + i])
  92                         fail("Logic data was not 'Hello world'.");
  93         }
  94 }
  95
  96 static void datafeed_in(const struct sr_dev_inst *sdi,
  97         const struct sr_datafeed_packet *packet, void *cb_data)
  98 {
  99         const struct sr_datafeed_meta *meta;
 100         const struct sr_datafeed_logic *logic;
 101         struct sr_config *src;
 102         uint64_t samplerate, sample_interval;
 103         GSList *l;
 104         const void *p;
 105
 106         (void)cb_data;
 107
 108         fail_unless(sdi != NULL);
 109         fail_unless(packet != NULL);
 110
 111         if (df_packet_counter++ == 0)
 112                 fail_unless(packet->type == SR_DF_HEADER,
 113                             "The first packet must be an SR_DF_HEADER.");
 114
 115         if (have_seen_df_end)
 116                 fail("There must be no packets after an SR_DF_END, but we "
 117                      "received a packet of type %d.", packet->type);
 118
 119         p = packet->payload;
 120
 121         switch (packet->type) {
 122         case SR_DF_HEADER:
 123                 // g_debug("Received SR_DF_HEADER.");
 124                 // fail_unless(p != NULL, "SR_DF_HEADER payload was NULL.");
 125
 126                 logic_channellist = srtest_get_enabled_logic_channels(sdi);
 127                 fail_unless(logic_channellist != NULL);
 128                 fail_unless(logic_channellist->len != 0);
 129                 // g_debug("Enabled channels: %d.", logic_channellist->len);
 130                 break;
 131         case SR_DF_META:
 132                 // g_debug("Received SR_DF_META.");
 133
 134                 meta = packet->payload;
 135                 fail_unless(p != NULL, "SR_DF_META payload was NULL.");
 136
 137                 for (l = meta->config; l; l = l->next) {
 138                         src = l->data;
 139                         // g_debug("Got meta key: %d.", src->key);
 140                         switch (src->key) {
 141                         case SR_CONF_SAMPLERATE:
 142                                 samplerate = g_variant_get_uint64(src->data);
 143                                 if (!expected_samplerate)
 144                                         break;
 145                                 fail_unless(samplerate == *expected_samplerate,
 146                                             "Expected samplerate=%" PRIu64 ", "
 147                                             "got %" PRIu64 "", samplerate,
 148                                             *expected_samplerate);
 149                                 // g_debug("samplerate = %" PRIu64 " Hz.",
 150                                 //      samplerate);
 151                                 break;
 152                         case SR_CONF_SAMPLE_INTERVAL:
 153                                 sample_interval = g_variant_get_uint64(src->data);
 154                                 (void)sample_interval;
 155                                 // g_debug("sample interval = %" PRIu64 " ms.",
 156                                 //      sample_interval);
 157                                 break;
 158                         default:
 159                                 /* Unknown metadata is not an error. */
 160                                 g_debug("Got unknown meta key: %d.", src->key);
 161                                 break;
 162                         }
 163                 }
 164                 break;
 165         case SR_DF_LOGIC:
 166                 logic = packet->payload;
 167                 fail_unless(p != NULL, "SR_DF_LOGIC payload was NULL.");
 168
 169                 // g_debug("Received SR_DF_LOGIC (%" PRIu64 " bytes, "
 170                 //      "unitsize %d).", logic->length, logic->unitsize);
 171
 172                 if (check_to_perform == CHECK_ALL_LOW)
 173                         check_all_low(logic);
 174                 else if (check_to_perform == CHECK_ALL_HIGH)
 175                         check_all_high(logic);
 176                 else if (check_to_perform == CHECK_HELLO_WORLD)
 177                         check_hello_world(logic);
 178
 179                 sample_counter += logic->length / logic->unitsize;
 180
 181                 break;
 182         case SR_DF_END:
 183                 // g_debug("Received SR_DF_END.");
 184                 // fail_unless(p != NULL, "SR_DF_END payload was NULL.");
 185                 have_seen_df_end = TRUE;
 186                 if (sample_counter != expected_samples)
 187                         fail("Expected %" PRIu64 " samples, got %" PRIu64 "",
 188                              expected_samples, sample_counter);
 189                 break;
 190         default:
 191                 /*
 192                  * Note: The binary input format doesn't support SR_DF_TRIGGER
 193                  * and some other types, those should yield an error.
 194                  */
 195                 fail("Invalid packet type: %d.", packet->type);
 196                 break;
 197         }
 198 }
 199
 200 static void check_buf(const char *filename, GHashTable *param,
 201                 const uint8_t *buf, int check, uint64_t samples,
 202                 uint64_t *samplerate)
 203 {
 204         int ret;
 205         struct sr_input *in;
 206         struct sr_input_format *in_format;
 207
 208         /* Initialize global variables for this run. */
 209         df_packet_counter = sample_counter = 0;
 210         have_seen_df_end = FALSE;
 211         logic_channellist = NULL;
 212         check_to_perform = check;
 213         expected_samples = samples;
 214         expected_samplerate = samplerate;
 215
 216         in_format = srtest_input_get("binary");
 217
 218         in = g_try_malloc0(sizeof(struct sr_input));
 219         fail_unless(in != NULL);
 220
 221         in->format = in_format;
 222         in->param = param;
 223
 224         srtest_buf_to_file(filename, buf, samples); /* Create a file. */
 225
 226         ret = in->format->init(in, filename);
 227         fail_unless(ret == SR_OK, "Input format init error: %d", ret);
 228
 229         sr_session_new();
 230         sr_session_datafeed_callback_add(datafeed_in, NULL);
 231         sr_session_dev_add(in->sdi);
 232         in_format->loadfile(in, filename);
 233         sr_session_destroy();
 234
 235         g_unlink(filename); /* Delete file again. */
 236 }
 237
 238 START_TEST(test_input_binary_all_low)
 239 {
 240         uint64_t i, samplerate;
 241         uint8_t *buf;
 242         GHashTable *param;
 243
 244         buf = g_try_malloc0(MAX_FILESIZE);
 245         fail_unless(buf != NULL);
 246
 247         param = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);
 248         fail_unless(param != NULL);
 249         g_hash_table_insert(param, g_strdup("samplerate"), g_strdup("1250"));
 250         samplerate = SR_HZ(1250);
 251
 252         /* Check various filesizes, with/without specifying a samplerate. */
 253         check_buf(FILENAME, NULL, buf, CHECK_ALL_LOW, 0, NULL);
 254         check_buf(FILENAME, param, buf, CHECK_ALL_LOW, 0, &samplerate);
 255         for (i = 1; i < MAX_FILESIZE; i *= 3) {
 256                 check_buf(FILENAME, NULL, buf, CHECK_ALL_LOW, i, NULL);
 257                 check_buf(FILENAME, param, buf, CHECK_ALL_LOW, i, &samplerate);
 258
 259         }
 260
 261         g_hash_table_destroy(param);
 262         g_free(buf);
 263 }
 264 END_TEST
 265
 266 START_TEST(test_input_binary_all_high)
 267 {
 268         uint64_t i;
 269         uint8_t *buf;
 270
 271         buf = g_try_malloc(MAX_FILESIZE);
 272         memset(buf, 0xff, MAX_FILESIZE);
 273
 274         check_buf(FILENAME, NULL, buf, CHECK_ALL_LOW, 0, NULL);
 275         for (i = 1; i < MAX_FILESIZE; i *= 3)
 276                 check_buf(FILENAME, NULL, buf, CHECK_ALL_HIGH, i, NULL);
 277
 278         g_free(buf);
 279 }
 280 END_TEST
 281
 282 START_TEST(test_input_binary_all_high_loop)
 283 {
 284         uint8_t *buf;
 285
 286         /* Note: _i is the loop variable from tcase_add_loop_test(). */
 287
 288         buf = g_try_malloc((_i * 10) + 1);
 289         memset(buf, 0xff, _i * 10);
 290
 291         check_buf(FILENAME, NULL, buf, CHECK_ALL_HIGH, _i * 10, NULL);
 292
 293         g_free(buf);
 294 }
 295 END_TEST
 296
 297 START_TEST(test_input_binary_hello_world)
 298 {
 299         uint64_t samplerate;
 300         uint8_t *buf;
 301         GHashTable *param;
 302
 303         buf = (uint8_t *)g_strdup("Hello world");
 304
 305         param = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);
 306         fail_unless(param != NULL);
 307         g_hash_table_insert(param, g_strdup("samplerate"), g_strdup("1250"));
 308         samplerate = SR_HZ(1250);
 309
 310         /* Check with and without specifying a samplerate. */
 311         check_buf(FILENAME, NULL, buf, CHECK_HELLO_WORLD, 11, NULL);
 312         check_buf(FILENAME, param, buf, CHECK_HELLO_WORLD, 11, &samplerate);
 313
 314         g_hash_table_destroy(param);
 315         g_free(buf);
 316 }
 317 END_TEST
 318
 319 Suite *suite_input_binary(void)
 320 {
 321         Suite *s;
 322         TCase *tc;
 323
 324         s = suite_create("input-binary");
 325
 326         tc = tcase_create("basic");
 327         tcase_add_checked_fixture(tc, setup, teardown);
 328         tcase_add_test(tc, test_input_binary_all_low);
 329         tcase_add_test(tc, test_input_binary_all_high);
 330         tcase_add_loop_test(tc, test_input_binary_all_high_loop, 0, 10);
 331         tcase_add_test(tc, test_input_binary_hello_world);
 332         suite_add_tcase(s, tc);
 333
 334         return s;
 335 }