1 /*
2 * Copyright (c) 2021 Unionman Technology Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include <errno.h>
17 #include <unistd.h>
18 #include <stdio.h>
19 #include <string.h>
20 #include <sys/syscall.h>
21
22 #define REBOOT_MAGIC1 0xfee1dead
23 #define REBOOT_MAGIC2 672274793
24 #define REBOOT_CMD_RESTART2 0xA1B2C3D4
25
26 #define REBOOT_FASTBOOT_MODE "fastboot"
27 #define REBOOT_UPDATE_MODE "update"
28
DoRebootCmd(const char * cmd)29 static int DoRebootCmd(const char *cmd)
30 {
31 return syscall(__NR_reboot, REBOOT_MAGIC1, REBOOT_MAGIC2, REBOOT_CMD_RESTART2, cmd);
32 }
33
main(int argc,const char * argv[])34 int main(int argc, const char *argv[])
35 {
36 int ret = 0;
37
38 if (argc <= 1L) {
39 printf("DoRebootCmd : update (usb burn) mode.\n");
40 ret = DoRebootCmd(REBOOT_UPDATE_MODE);
41 } else {
42 const char *cmd = argv[1];
43 if (strncmp(cmd, REBOOT_FASTBOOT_MODE, strlen(REBOOT_FASTBOOT_MODE)) == 0) {
44 printf("DoRebootCmd : fastboot mode.\n");
45 ret = DoRebootCmd(REBOOT_FASTBOOT_MODE);
46 } else {
47 ret = DoRebootCmd(cmd);
48 }
49 }
50
51 if (ret != 0) {
52 printf("DoRebootCmd failed! (%d) %s\n", errno, strerror(errno));
53 } else {
54 printf("DoRebootCmd : OK\n");
55 }
56
57 return ret;
58 }
59