summaryrefslogtreecommitdiff
path: root/drivers/s390/char/keyboard.h
blob: 9b16eae28486906f9851cd02a1cc39db54225291 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
/* SPDX-License-Identifier: GPL-2.0 */
/*
 *    ebcdic keycode functions for s390 console drivers
 *
 *    Copyright IBM Corp. 2003
 *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
 */

#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/keyboard.h>

#define NR_FN_HANDLER	20

struct kbd_data;

typedef void (fn_handler_fn)(struct kbd_data *);

/*
 * FIXME: explain key_maps tricks.
 */

struct kbd_data {
	struct tty_port *port;
	unsigned short **key_maps;
	char **func_table;
	fn_handler_fn **fn_handler;
	struct kbdiacruc *accent_table;
	unsigned int accent_table_size;
	unsigned int diacr;
	unsigned short sysrq;
};

struct kbd_data *kbd_alloc(void);
void kbd_free(struct kbd_data *);
void kbd_ascebc(struct kbd_data *, unsigned char *);

void kbd_keycode(struct kbd_data *, unsigned int);
int kbd_ioctl(struct kbd_data *, unsigned int, unsigned long);

/*
 * Helper Functions.
 */
static inline void
kbd_put_queue(struct tty_port *port, int ch)
{
	tty_insert_flip_char(port, ch, 0);
	tty_flip_buffer_push(port);
}

static inline void
kbd_puts_queue(struct tty_port *port, char *cp)
{
	while (*cp)
		tty_insert_flip_char(port, *cp++, 0);
	tty_flip_buffer_push(port);
}