| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Unified handling of special chars. |
| * |
| * Copyright IBM Corp. 2001 |
| * Author(s): Fritz Elfert <felfert@millenux.com> <elfert@de.ibm.com> |
| * |
| */ |
| |
| #include <linux/tty.h> |
| #include <linux/sysrq.h> |
| #include <linux/workqueue.h> |
| |
| extern unsigned int |
| ctrlchar_handle(const unsigned char *buf, int len, struct tty_struct *tty); |
| |
| |
| #define CTRLCHAR_NONE (1 << 8) |
| #define CTRLCHAR_CTRL (2 << 8) |
| #define CTRLCHAR_SYSRQ (3 << 8) |
| |
| #define CTRLCHAR_MASK (~0xffu) |
| |
| |
| #ifdef CONFIG_MAGIC_SYSRQ |
| struct sysrq_work { |
| int key; |
| struct work_struct work; |
| }; |
| |
| void schedule_sysrq_work(struct sysrq_work *sw); |
| #endif |