1 /*
2 * Copyright (c) 2009 Travis Geiselbrecht
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files
6 * (the "Software"), to deal in the Software without restriction,
7 * including without limitation the rights to use, copy, modify, merge,
8 * publish, distribute, sublicense, and/or sell copies of the Software,
9 * and to permit persons to whom the Software is furnished to do so,
10 * subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23 #include <stdio.h>
24 #include <app.h>
25 #include <kernel/thread.h>
26
27 extern const struct app_descriptor __apps_start[];
28 extern const struct app_descriptor __apps_end[];
29
30 static void start_app(const struct app_descriptor *app);
31
32 /* one time setup */
apps_init(void)33 void apps_init(void)
34 {
35 const struct app_descriptor *app;
36
37 /* call all the init routines */
38 for (app = __apps_start; app != __apps_end; app++) {
39 if (app->init)
40 app->init(app);
41 }
42
43 /* start any that want to start on boot */
44 for (app = __apps_start; app != __apps_end; app++) {
45 if (app->entry && (app->flags & APP_FLAG_DONT_START_ON_BOOT) == 0) {
46 start_app(app);
47 }
48 }
49 }
50
app_thread_entry(void * arg)51 static int app_thread_entry(void *arg)
52 {
53 const struct app_descriptor *app = (const struct app_descriptor *)arg;
54
55 app->entry(app, NULL);
56
57 return 0;
58 }
59
start_app(const struct app_descriptor * app)60 static void start_app(const struct app_descriptor *app)
61 {
62 uint32_t stack_size = (app->flags & APP_FLAG_CUSTOM_STACK_SIZE) ? app->stack_size : DEFAULT_STACK_SIZE;
63
64 printf("starting app %s\n", app->name);
65 thread_t *t = thread_create(app->name, &app_thread_entry, (void *)app, DEFAULT_PRIORITY, stack_size);
66 if (!t) {
67 panic("start_app thread creation failed");
68 }
69 thread_detach(t);
70 thread_resume(t);
71 }
72
73