drivers/s390/char/ctrlchar.h

   1 /*
   2  *  Unified handling of special chars.
   3  *
   4  *    Copyright IBM Corp. 2001
   5  *    Author(s): Fritz Elfert <felfert@millenux.com> <elfert@de.ibm.com>
   6  *
   7  */
   8
   9 #include <linux/tty.h>
  10 #include <linux/sysrq.h>
  11 #include <linux/workqueue.h>
  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)
  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