linux/drivers/s390/char/keyboard.h
Jiri Slaby ba186e7d17 TTY: tty3270, add tty_port
And use tty from that. This means, we convert most of the users to
accept tty_port instead. This is not racy and ensures the tty to be
properly refcounted.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: linux390@de.ibm.com
Cc: linux-s390@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-09 11:28:17 -07:00

65 lines
1.4 KiB
C

/*
* drivers/s390/char/keyboard.h
* ebcdic keycode functions for s390 console drivers
*
* Copyright (C) 2003 IBM Deutschland Entwicklung GmbH, IBM Corporation
* 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)
{
struct tty_struct *tty = tty_port_tty_get(port);
if (!tty)
return;
tty_insert_flip_char(tty, ch, 0);
tty_schedule_flip(tty);
tty_kref_put(tty);
}
static inline void
kbd_puts_queue(struct tty_port *port, char *cp)
{
struct tty_struct *tty = tty_port_tty_get(port);
if (!tty)
return;
while (*cp)
tty_insert_flip_char(tty, *cp++, 0);
tty_schedule_flip(tty);
tty_kref_put(tty);
}