Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | * Unified handling of special chars. |
| 3 | * |
Heiko Carstens | a53c8fa | 2012-07-20 11:15:04 +0200 | [diff] [blame] | 4 | * Copyright IBM Corp. 2001 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * Author(s): Fritz Elfert <felfert@millenux.com> <elfert@de.ibm.com> |
| 6 | * |
| 7 | */ |
| 8 | |
| 9 | #include <linux/tty.h> |
Hendrik Brueckner | ab7373b | 2015-08-18 17:42:39 +0200 | [diff] [blame] | 10 | #include <linux/sysrq.h> |
| 11 | #include <linux/workqueue.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | |
| 13 | extern unsigned int |
| 14 | ctrlchar_handle(const unsigned char *buf, int len, struct tty_struct *tty); |
| 15 | |
| 16 | |
| 17 | #define CTRLCHAR_NONE (1 << 8) |
| 18 | #define CTRLCHAR_CTRL (2 << 8) |
| 19 | #define CTRLCHAR_SYSRQ (3 << 8) |
| 20 | |
| 21 | #define CTRLCHAR_MASK (~0xffu) |
Hendrik Brueckner | ab7373b | 2015-08-18 17:42:39 +0200 | [diff] [blame] | 22 | |
| 23 | |
| 24 | #ifdef CONFIG_MAGIC_SYSRQ |
| 25 | struct sysrq_work { |
| 26 | int key; |
| 27 | struct work_struct work; |
| 28 | }; |
| 29 | |
| 30 | void schedule_sysrq_work(struct sysrq_work *sw); |
| 31 | #endif |