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1 | /* |
2 | * This file implements recording of each stage of the boot process. It is | |
3 | * intended to implement timing of each stage, reporting this information | |
4 | * to the user and passing it to the OS for logging / further analysis. | |
5 | * | |
6 | * Copyright (c) 2011 The Chromium OS Authors. | |
7 | * See file CREDITS for list of people who contributed to this | |
8 | * project. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or | |
11 | * modify it under the terms of the GNU General Public License as | |
12 | * published by the Free Software Foundation; either version 2 of | |
13 | * the License, or (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
23 | * MA 02111-1307 USA | |
24 | */ | |
25 | ||
26 | #ifndef _BOOTSTAGE_H | |
27 | #define _BOOTSTAGE_H | |
28 | ||
29 | /* | |
30 | * A list of boot stages that we know about. Each of these indicates the | |
31 | * state that we are at, and the action that we are about to perform. For | |
32 | * errors, we issue an error for an item when it fails. Therefore the | |
33 | * normal sequence is: | |
34 | * | |
35 | * progress action1 | |
36 | * progress action2 | |
37 | * progress action3 | |
38 | * | |
39 | * and an error condition where action 3 failed would be: | |
40 | * | |
41 | * progress action1 | |
42 | * progress action2 | |
43 | * progress action3 | |
44 | * error on action3 | |
45 | */ | |
46 | enum bootstage_id { | |
47 | BOOTSTAGE_ID_RUN_OS = 15, /* Exiting U-Boot, entering OS */ | |
48 | }; | |
49 | ||
50 | /* | |
51 | * Board code can implement show_boot_progress() if needed. | |
52 | * | |
53 | * @param val Progress state (enum bootstage_id), or -id if an error | |
54 | * has occurred. | |
55 | */ | |
56 | void show_boot_progress(int val); | |
5ddb118d SG |
57 | static inline void show_boot_error(int val) |
58 | { | |
59 | show_boot_progress(-val); | |
60 | } | |
097e1783 SG |
61 | |
62 | #endif |