libsigrok/src/drivers.c

55 lines
2.0 KiB
C

/*
* This file is part of the libsigrok project.
*
* Copyright (C) 2016 Lars-Peter Clausen <lars@metafoo.de>
* Copyright (C) 2016 Aurelien Jacobs <aurel@gnuage.org>
* Copyright (C) 2017 Marcus Comstedt <marcus@mc.pp.se>
*
* 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 3 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 <glib.h>
#include <libsigrok/libsigrok.h>
#include "libsigrok-internal.h"
/*
* sr_driver_list is a special section contains pointers to all the hardware
* drivers built into the library. The __start and __stop symbols are
* created from driver_list_start.c and driver_list_stop.c, and point to the
* start and end of the section. They are used to iterate over the list of
* all drivers.
*/
SR_PRIV extern const struct sr_dev_driver *sr_driver_list__start[];
SR_PRIV extern const struct sr_dev_driver *sr_driver_list__stop[];
/** @private
* Initialize the driver list in a fresh libsigrok context.
*
* @param ctx Pointer to a libsigrok context struct. Must not be NULL.
*/
SR_API void sr_drivers_init(struct sr_context *ctx)
{
GArray *array;
array = g_array_new(TRUE, FALSE, sizeof(struct sr_dev_driver *));
#ifdef HAVE_DRIVERS
for (const struct sr_dev_driver **drivers = sr_driver_list__start + 1;
drivers < sr_driver_list__stop; drivers++)
g_array_append_val(array, *drivers);
#endif
ctx->driver_list = (struct sr_dev_driver **)array->data;
g_array_free(array, FALSE);
}