1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/*
* Copyright (c) 2017 Richard Braun.
*
* 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 <stdio.h>
#include <kern/init.h>
#include <kern/plist.h>
#include <kern/shell.h>
#include <kern/shutdown.h>
#include <machine/cpu.h>
static struct plist shutdown_ops_list;
#ifdef X15_SHELL
static void
shutdown_shell_halt(int argc, char **argv)
{
(void)argc;
(void)argv;
shutdown_halt();
}
static void
shutdown_shell_reboot(int argc, char **argv)
{
(void)argc;
(void)argv;
shutdown_reboot();
}
static struct shell_cmd shutdown_shell_cmds[] = {
SHELL_CMD_INITIALIZER("shutdown_halt", shutdown_shell_halt,
"shutdown_halt",
"halt the system"),
SHELL_CMD_INITIALIZER("shutdown_reboot", shutdown_shell_reboot,
"shutdown_reboot",
"reboot the system"),
};
#endif /* X15_SHELL */
void __init
shutdown_setup(void)
{
plist_init(&shutdown_ops_list);
}
void __init
shutdown_register_shell_cmds(void)
{
SHELL_REGISTER_CMDS(shutdown_shell_cmds);
}
void __init
shutdown_register(struct shutdown_ops *ops, unsigned int priority)
{
plist_node_init(&ops->node, priority);
plist_add(&shutdown_ops_list, &ops->node);
}
static void
shutdown_halt_other_cpus(void)
{
cpu_intr_disable();
cpu_halt_broadcast();
}
void
shutdown_halt(void)
{
shutdown_halt_other_cpus();
printf("shutdown: system halted\n");
cpu_halt();
}
void
shutdown_reboot(void)
{
struct shutdown_ops *ops;
if (plist_empty(&shutdown_ops_list)) {
printf("shutdown: no reset operation available, halting\n");
shutdown_halt();
}
shutdown_halt_other_cpus();
printf("shutdown: rebooting...\n");
plist_for_each_entry_reverse(&shutdown_ops_list, ops, node) {
ops->reset();
}
cpu_halt();
}
|
