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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 | 2 | /* |
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3 | * Unified handling of special chars. |
4 | * | |
a53c8fab | 5 | * Copyright IBM Corp. 2001 |
1da177e4 LT |
6 | * Author(s): Fritz Elfert <felfert@millenux.com> <elfert@de.ibm.com> |
7 | * | |
8 | */ | |
9 | ||
10 | #include <linux/tty.h> | |
ab7373bf HB |
11 | #include <linux/sysrq.h> |
12 | #include <linux/workqueue.h> | |
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13 | |
14 | extern unsigned int | |
15 | ctrlchar_handle(const unsigned char *buf, int len, struct tty_struct *tty); | |
16 | ||
17 | ||
18 | #define CTRLCHAR_NONE (1 << 8) | |
19 | #define CTRLCHAR_CTRL (2 << 8) | |
20 | #define CTRLCHAR_SYSRQ (3 << 8) | |
21 | ||
22 | #define CTRLCHAR_MASK (~0xffu) | |
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23 | |
24 | ||
25 | #ifdef CONFIG_MAGIC_SYSRQ | |
26 | struct sysrq_work { | |
27 | int key; | |
28 | struct work_struct work; | |
29 | }; | |
30 | ||
31 | void schedule_sysrq_work(struct sysrq_work *sw); | |
32 | #endif |