Release 4.18 drivers/s390/char/keyboard.h

/* 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;

extern int ebc_funcbufsize, ebc_funcbufleft;
extern char *ebc_func_table[MAX_NR_FUNC];
extern char ebc_func_buf[];
extern char *ebc_funcbufptr;
extern unsigned int ebc_keymap_count;

extern struct kbdiacruc ebc_accent_table[];
extern unsigned int ebc_accent_table_size;
extern unsigned short *ebc_key_maps[MAX_NR_KEYMAPS];
extern unsigned short ebc_plain_map[NR_KEYS];


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_schedule_flip(port);
}

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static inline void

kbd_puts_queue(struct tty_port *port, char *cp)
{
	while (*cp)
		tty_insert_flip_char(port, *cp++, 0);
	tty_schedule_flip(port);
}
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Directory: drivers/s390/char

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