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The Android Open Source Projectdd7bc332009-03-03 19:32:55 -08001/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef _INIT_DEVICES_H
18#define _INIT_DEVICES_H
19
Sandeep Patil957e4ab2017-02-07 18:11:37 -080020#include <functional>
Colin Crossf83d0b92010-04-21 12:04:20 -070021#include <sys/stat.h>
22
Sandeep Patil957e4ab2017-02-07 18:11:37 -080023enum coldboot_action_t {
24 // coldboot continues without creating the device for the uevent
25 COLDBOOT_CONTINUE = 0,
26 // coldboot continues after creating the device for the uevent
27 COLDBOOT_CREATE,
28 // coldboot stops after creating the device for uevent but doesn't
29 // create the COLDBOOT_DONE file
30 COLDBOOT_STOP,
31 // same as COLDBOOT_STOP, but creates the COLDBOOT_DONE file
32 COLDBOOT_FINISH
33};
34
35struct uevent {
36 const char* action;
37 const char* path;
38 const char* subsystem;
39 const char* firmware;
40 const char* partition_name;
41 const char* device_name;
42 int partition_num;
43 int major;
44 int minor;
45};
46
47typedef std::function<coldboot_action_t(struct uevent* uevent)> coldboot_callback;
48extern coldboot_action_t handle_device_fd(coldboot_callback fn = nullptr);
49extern void device_init(const char* path = nullptr, coldboot_callback fn = nullptr);
Sandeep Patil35403eb2017-02-08 20:27:12 -080050extern void device_close();
Hung-ying Tyan99c4a8a2016-02-01 15:07:40 +080051
Brian Swetlandbc57d4c2010-10-26 15:09:43 -070052extern int add_dev_perms(const char *name, const char *attr,
53 mode_t perm, unsigned int uid,
Daniel Leungc0c1ffe2012-07-02 11:32:30 -070054 unsigned int gid, unsigned short prefix,
55 unsigned short wildcard);
Colin Cross0dd7ca62010-04-13 19:25:51 -070056int get_device_fd();
Elliott Hughesf3cf4382015-02-03 17:12:07 -080057
The Android Open Source Projectdd7bc332009-03-03 19:32:55 -080058#endif /* _INIT_DEVICES_H */