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Initial version.

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DreamSourceLab
2014-01-15 19:48:01 +08:00
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libsigrok4DSLogic/tests/lib.c Normal file
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/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2013 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdio.h>
#include <string.h>
#include <check.h>
#include "../libsigrok.h"
/* Get a libsigrok driver by name. */
struct sr_dev_driver *srtest_driver_get(const char *drivername)
{
struct sr_dev_driver **drivers, *driver = NULL;
int i;
drivers = sr_driver_list();
fail_unless(drivers != NULL, "No drivers found.");
for (i = 0; drivers[i]; i++) {
if (strcmp(drivers[i]->name, drivername))
continue;
driver = drivers[i];
}
fail_unless(driver != NULL, "Driver '%s' not found.", drivername);
return driver;
}
/* Initialize a libsigrok driver. */
void srtest_driver_init(struct sr_context *sr_ctx, struct sr_dev_driver *driver)
{
int ret;
ret = sr_driver_init(sr_ctx, driver);
fail_unless(ret == SR_OK, "Failed to init '%s' driver: %d.",
driver->name, ret);
}
/* Initialize all libsigrok drivers. */
void srtest_driver_init_all(struct sr_context *sr_ctx)
{
struct sr_dev_driver **drivers, *driver;
int i, ret;
drivers = sr_driver_list();
fail_unless(drivers != NULL, "No drivers found.");
for (i = 0; drivers[i]; i++) {
driver = drivers[i];
ret = sr_driver_init(sr_ctx, driver);
fail_unless(ret == SR_OK, "Failed to init '%s' driver: %d.",
driver->name, ret);
}
}
/* Set the samplerate for the respective driver to the specified value. */
void srtest_set_samplerate(struct sr_dev_driver *driver, uint64_t samplerate)
{
int ret;
struct sr_dev_inst *sdi;
GVariant *gvar;
sdi = g_slist_nth_data(driver->priv, 0);
gvar = g_variant_new_uint64(samplerate);
ret = driver->config_set(SR_CONF_SAMPLERATE, gvar, sdi);
g_variant_unref(gvar);
fail_unless(ret == SR_OK, "%s: Failed to set SR_CONF_SAMPLERATE: %d.",
driver->name, ret);
}
/* Get the respective driver's current samplerate. */
uint64_t srtest_get_samplerate(struct sr_dev_driver *driver)
{
int ret;
uint64_t samplerate;
struct sr_dev_inst *sdi;
GVariant *gvar;
sdi = g_slist_nth_data(driver->priv, 0);
ret = driver->config_get(SR_CONF_SAMPLERATE, &gvar, sdi);
samplerate = g_variant_get_uint64(gvar);
g_variant_unref(gvar);
fail_unless(ret == SR_OK, "%s: Failed to get SR_CONF_SAMPLERATE: %d.",
driver->name, ret);
return samplerate;
}
/* Check whether the respective driver can set/get the correct samplerate. */
void srtest_check_samplerate(struct sr_context *sr_ctx, const char *drivername,
uint64_t samplerate)
{
struct sr_dev_driver *driver;
uint64_t s;
driver = srtest_driver_get(drivername);
srtest_driver_init(sr_ctx, driver);;
srtest_set_samplerate(driver, samplerate);
s = srtest_get_samplerate(driver);
fail_unless(s == samplerate, "%s: Incorrect samplerate: %" PRIu64 ".",
drivername, s);
}