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ab7373bf23
Extract the sysrq handling from the ctrlchar_handle() into a separate function that can be directly used by other users. Introduce a new sysrq_work structure to embed the work_struct and to specify the magic sysrq function to be invoked. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
31 lines
605 B
C
31 lines
605 B
C
/*
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* Unified handling of special chars.
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*
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* Copyright IBM Corp. 2001
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* Author(s): Fritz Elfert <felfert@millenux.com> <elfert@de.ibm.com>
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*
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*/
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#include <linux/tty.h>
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#include <linux/sysrq.h>
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#include <linux/workqueue.h>
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extern unsigned int
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ctrlchar_handle(const unsigned char *buf, int len, struct tty_struct *tty);
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#define CTRLCHAR_NONE (1 << 8)
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#define CTRLCHAR_CTRL (2 << 8)
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#define CTRLCHAR_SYSRQ (3 << 8)
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#define CTRLCHAR_MASK (~0xffu)
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#ifdef CONFIG_MAGIC_SYSRQ
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struct sysrq_work {
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int key;
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struct work_struct work;
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};
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void schedule_sysrq_work(struct sysrq_work *sw);
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#endif
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