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/* 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_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);
}
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