Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *  Unified handling of special chars.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *    Copyright IBM Corp. 2001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *    Author(s): Fritz Elfert <felfert@millenux.com> <elfert@de.ibm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/tty.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/sysrq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) extern unsigned int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) ctrlchar_handle(const unsigned char *buf, int len, struct tty_struct *tty);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define CTRLCHAR_NONE  (1 << 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define CTRLCHAR_CTRL  (2 << 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define CTRLCHAR_SYSRQ (3 << 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define CTRLCHAR_MASK (~0xffu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #ifdef CONFIG_MAGIC_SYSRQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct sysrq_work {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	int key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	struct work_struct work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) void schedule_sysrq_work(struct sysrq_work *sw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #endif