libsigrok/tests/input_binary.c

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/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2013-2014 Uwe Hermann <uwe@hermann-uwe.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <check.h>
#include <glib/gstdio.h>
#include <libsigrok/libsigrok.h>
#include "lib.h"
#define BUFSIZE (1000 * 1000)
enum {
CHECK_ALL_LOW,
CHECK_ALL_HIGH,
CHECK_HELLO_WORLD,
};
static uint64_t df_packet_counter = 0, sample_counter = 0;
static gboolean have_seen_df_end = FALSE;
static GArray *logic_channellist = NULL;
static int check_to_perform;
static uint64_t expected_samples;
static uint64_t *expected_samplerate;
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static void check_all_low(const struct sr_datafeed_logic *logic)
{
uint64_t i;
uint8_t *data;
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for (i = 0; i < logic->length; i++) {
data = logic->data;
if (data[i * logic->unitsize] != 0)
fail("Logic data was not all-0x00.");
}
}
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static void check_all_high(const struct sr_datafeed_logic *logic)
{
uint64_t i;
uint8_t *data;
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for (i = 0; i < logic->length; i++) {
data = logic->data;
if (data[i * logic->unitsize] != 0xff)
fail("Logic data was not all-0xff.");
}
}
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static void check_hello_world(const struct sr_datafeed_logic *logic)
{
uint64_t i;
uint8_t *data, b;
const char *h = "Hello world";
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for (i = 0; i < logic->length; i++) {
data = logic->data;
b = data[sample_counter + i];
if (b != h[sample_counter + i])
fail("Logic data was not 'Hello world'.");
}
}
static void datafeed_in(const struct sr_dev_inst *sdi,
const struct sr_datafeed_packet *packet, void *cb_data)
{
const struct sr_datafeed_meta *meta;
const struct sr_datafeed_logic *logic;
struct sr_config *src;
uint64_t samplerate, sample_interval;
GSList *l;
const void *p;
(void)cb_data;
fail_unless(sdi != NULL);
fail_unless(packet != NULL);
if (df_packet_counter++ == 0)
fail_unless(packet->type == SR_DF_HEADER,
"The first packet must be an SR_DF_HEADER.");
if (have_seen_df_end)
fail("There must be no packets after an SR_DF_END, but we "
"received a packet of type %d.", packet->type);
p = packet->payload;
switch (packet->type) {
case SR_DF_HEADER:
// g_debug("Received SR_DF_HEADER.");
// fail_unless(p != NULL, "SR_DF_HEADER payload was NULL.");
logic_channellist = srtest_get_enabled_logic_channels(sdi);
fail_unless(logic_channellist != NULL);
fail_unless(logic_channellist->len != 0);
// g_debug("Enabled channels: %d.", logic_channellist->len);
break;
case SR_DF_META:
// g_debug("Received SR_DF_META.");
meta = packet->payload;
fail_unless(p != NULL, "SR_DF_META payload was NULL.");
for (l = meta->config; l; l = l->next) {
src = l->data;
// g_debug("Got meta key: %d.", src->key);
switch (src->key) {
case SR_CONF_SAMPLERATE:
samplerate = g_variant_get_uint64(src->data);
if (!expected_samplerate)
break;
fail_unless(samplerate == *expected_samplerate,
"Expected samplerate=%" PRIu64 ", "
"got %" PRIu64 "", samplerate,
*expected_samplerate);
// g_debug("samplerate = %" PRIu64 " Hz.",
// samplerate);
break;
case SR_CONF_SAMPLE_INTERVAL:
sample_interval = g_variant_get_uint64(src->data);
(void)sample_interval;
// g_debug("sample interval = %" PRIu64 " ms.",
// sample_interval);
break;
default:
/* Unknown metadata is not an error. */
g_debug("Got unknown meta key: %d.", src->key);
break;
}
}
break;
case SR_DF_LOGIC:
logic = packet->payload;
fail_unless(p != NULL, "SR_DF_LOGIC payload was NULL.");
// g_debug("Received SR_DF_LOGIC (%" PRIu64 " bytes, "
// "unitsize %d).", logic->length, logic->unitsize);
if (check_to_perform == CHECK_ALL_LOW)
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check_all_low(logic);
else if (check_to_perform == CHECK_ALL_HIGH)
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check_all_high(logic);
else if (check_to_perform == CHECK_HELLO_WORLD)
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check_hello_world(logic);
sample_counter += logic->length / logic->unitsize;
break;
case SR_DF_END:
// g_debug("Received SR_DF_END.");
// fail_unless(p != NULL, "SR_DF_END payload was NULL.");
have_seen_df_end = TRUE;
if (sample_counter != expected_samples)
fail("Expected %" PRIu64 " samples, got %" PRIu64 "",
expected_samples, sample_counter);
break;
default:
/*
* Note: The binary input format doesn't support SR_DF_TRIGGER
* and some other types, those should yield an error.
*/
fail("Invalid packet type: %d.", packet->type);
break;
}
}
static void check_buf(GHashTable *options, const uint8_t *buf, int check,
uint64_t samples, uint64_t *samplerate)
{
int ret;
struct sr_input *in;
const struct sr_input_module *imod;
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struct sr_session *session;
struct sr_dev_inst *sdi;
GString *gbuf;
/* Initialize global variables for this run. */
df_packet_counter = sample_counter = 0;
have_seen_df_end = FALSE;
logic_channellist = NULL;
check_to_perform = check;
expected_samples = samples;
expected_samplerate = samplerate;
gbuf = g_string_new_len((gchar *)buf, (gssize)samples);
imod = sr_input_find("binary");
fail_unless(imod != NULL, "Failed to find input module.");
in = sr_input_new(imod, options);
fail_unless(in != NULL, "Failed to create input instance.");
sdi = sr_input_dev_inst_get(in);
sr_session_new(srtest_ctx, &session);
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sr_session_datafeed_callback_add(session, datafeed_in, NULL);
sr_session_dev_add(session, sdi);
ret = sr_input_send(in, gbuf);
fail_unless(ret == SR_OK, "sr_input_send() error: %d", ret);
sr_input_free(in);
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sr_session_destroy(session);
g_string_free(gbuf, TRUE);
}
START_TEST(test_input_binary_all_low)
{
uint64_t i, samplerate;
GHashTable *options;
uint8_t *buf;
GVariant *gvar;
buf = g_malloc0(BUFSIZE);
gvar = g_variant_new_uint64(1250);
options = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
(GDestroyNotify)g_variant_unref);
g_hash_table_insert(options, g_strdup("samplerate"),
g_variant_ref_sink(gvar));
samplerate = SR_HZ(1250);
/* Check various filesizes, with/without specifying a samplerate. */
check_buf(NULL, buf, CHECK_ALL_LOW, 0, NULL);
check_buf(options, buf, CHECK_ALL_LOW, 0, &samplerate);
for (i = 1; i < BUFSIZE; i *= 3) {
check_buf(NULL, buf, CHECK_ALL_LOW, i, NULL);
check_buf(options, buf, CHECK_ALL_LOW, i, &samplerate);
}
g_hash_table_destroy(options);
g_free(buf);
}
END_TEST
START_TEST(test_input_binary_all_high)
{
uint64_t i;
uint8_t *buf;
buf = g_malloc(BUFSIZE);
memset(buf, 0xff, BUFSIZE);
check_buf(NULL, buf, CHECK_ALL_HIGH, 0, NULL);
for (i = 1; i < BUFSIZE; i *= 3)
check_buf(NULL, buf, CHECK_ALL_HIGH, i, NULL);
g_free(buf);
}
END_TEST
START_TEST(test_input_binary_all_high_loop)
{
uint8_t *buf;
uint64_t bufsize;
/* Note: _i is the loop variable from tcase_add_loop_test(). */
bufsize = (_i * 10);
buf = g_malloc(BUFSIZE);
memset(buf, 0xff, BUFSIZE);
check_buf(NULL, buf, CHECK_ALL_HIGH, bufsize, NULL);
g_free(buf);
}
END_TEST
START_TEST(test_input_binary_hello_world)
{
uint64_t samplerate;
uint8_t *buf;
GHashTable *options;
GVariant *gvar;
buf = (uint8_t *)g_strdup("Hello world");
gvar = g_variant_new_uint64(1250);
options = g_hash_table_new_full(g_str_hash, g_str_equal, g_free,
(GDestroyNotify)g_variant_unref);
g_hash_table_insert(options, g_strdup("samplerate"),
g_variant_ref_sink(gvar));
samplerate = SR_HZ(1250);
/* Check with and without specifying a samplerate. */
check_buf(NULL, buf, CHECK_HELLO_WORLD, 11, NULL);
check_buf(options, buf, CHECK_HELLO_WORLD, 11, &samplerate);
g_hash_table_destroy(options);
g_free(buf);
}
END_TEST
Suite *suite_input_binary(void)
{
Suite *s;
TCase *tc;
s = suite_create("input-binary");
tc = tcase_create("basic");
tcase_add_checked_fixture(tc, srtest_setup, srtest_teardown);
tcase_add_test(tc, test_input_binary_all_low);
tcase_add_test(tc, test_input_binary_all_high);
tcase_add_loop_test(tc, test_input_binary_all_high_loop, 1, 10);
tcase_add_test(tc, test_input_binary_hello_world);
suite_add_tcase(s, tc);
return s;
}