1 /*
2  * This file is part of the libsigrok project.
3  *
4  * Copyright (C) 2016 Lars-Peter Clausen <lars@metafoo.de>
5  * Copyright (C) 2016 Aurelien Jacobs <aurel@gnuage.org>
6  * Copyright (C) 2017 Marcus Comstedt <marcus@mc.pp.se>
7  *
8  * This program is free software: you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation, either version 3 of the License, or
11  * (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
20  */
21 
22 #include <config.h>
23 #include <glib.h>
24 #include <libsigrok/libsigrok.h>
25 #include "libsigrok-internal.h"
26 
27 /*
28  * sr_driver_list is a special section contains pointers to all the hardware
29  * drivers built into the library. The __start and __stop symbols are
30  * created from driver_list_start.c and driver_list_stop.c, and point to the
31  * start and end of the section. They are used to iterate over the list of
32  * all drivers.
33  */
34 SR_PRIV extern const struct sr_dev_driver *sr_driver_list__start[];
35 SR_PRIV extern const struct sr_dev_driver *sr_driver_list__stop[];
36 
37 /** @private
38  * Initialize the driver list in a fresh libsigrok context.
39  *
40  * @param ctx Pointer to a libsigrok context struct. Must not be NULL.
41  */
sr_drivers_init(struct sr_context * ctx)42 SR_API void sr_drivers_init(struct sr_context *ctx)
43 {
44 	GArray *array;
45 
46 	array = g_array_new(TRUE, FALSE, sizeof(struct sr_dev_driver *));
47 #ifdef HAVE_DRIVERS
48 	for (const struct sr_dev_driver **drivers = sr_driver_list__start + 1;
49 	     drivers < sr_driver_list__stop; drivers++)
50 		g_array_append_val(array, *drivers);
51 #endif
52 	ctx->driver_list = (struct sr_dev_driver **)array->data;
53 	g_array_free(array, FALSE);
54 }
55