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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 | * | |
7 | * This program is free software: you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation, either version 3 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 | */ | |
20 | ||
21 | #include <config.h> | |
22 | #include <glib.h> | |
23 | #include <libsigrok/libsigrok.h> | |
24 | #include "libsigrok-internal.h" | |
25 | ||
26 | /* | |
27 | * sr_driver_list is a special section contains pointers to all the hardware | |
28 | * drivers built into the library. The __start and __stop symbols are | |
29 | * auto-generated by the linker (OSX needs a little help) and point to the start | |
30 | * and end of the section. They are used to iterate over the list of all | |
31 | * drivers. | |
32 | */ | |
33 | #ifdef __APPLE__ | |
34 | extern struct sr_dev_driver *__start_sr_driver_list __asm("section$start$__DATA$__sr_driver_list"); | |
35 | extern struct sr_dev_driver *__stop_sr_driver_list __asm("section$end$__DATA$__sr_driver_list"); | |
36 | #else | |
37 | extern struct sr_dev_driver *__start_sr_driver_list; | |
38 | extern struct sr_dev_driver *__stop_sr_driver_list; | |
39 | #endif | |
40 | ||
41 | /** @private | |
42 | * Initialize the driver list in a fresh libsigrok context. | |
43 | * | |
44 | * @param ctx Pointer to a libsigrok context struct. Must not be NULL. | |
45 | */ | |
46 | SR_API void sr_drivers_init(struct sr_context *ctx) | |
47 | { | |
48 | GArray *array; | |
49 | ||
50 | array = g_array_new(TRUE, FALSE, sizeof(struct sr_dev_driver *)); | |
51 | #ifdef HAVE_DRIVERS | |
52 | for (struct sr_dev_driver **drivers = &__start_sr_driver_list; | |
53 | drivers < &__stop_sr_driver_list; drivers++) | |
54 | g_array_append_val(array, *drivers); | |
55 | #endif | |
56 | ctx->driver_list = (struct sr_dev_driver **)array->data; | |
57 | g_array_free(array, FALSE); | |
58 | } |