2005-04-17 06:20:36 +08:00
|
|
|
/*
|
|
|
|
* Unified handling of special chars.
|
|
|
|
*
|
2012-07-20 17:15:04 +08:00
|
|
|
* Copyright IBM Corp. 2001
|
2005-04-17 06:20:36 +08:00
|
|
|
* Author(s): Fritz Elfert <felfert@millenux.com> <elfert@de.ibm.com>
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/tty.h>
|
2015-08-18 23:42:39 +08:00
|
|
|
#include <linux/sysrq.h>
|
|
|
|
#include <linux/workqueue.h>
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
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)
|
2015-08-18 23:42:39 +08:00
|
|
|
|
|
|
|
|
|
|
|
#ifdef CONFIG_MAGIC_SYSRQ
|
|
|
|
struct sysrq_work {
|
|
|
|
int key;
|
|
|
|
struct work_struct work;
|
|
|
|
};
|
|
|
|
|
|
|
|
void schedule_sysrq_work(struct sysrq_work *sw);
|
|
|
|
#endif
|