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/*

 * This file is subject to the terms and conditions of the GNU General Public

 * License.  See the file "COPYING" in the main directory of this archive

 * for more details.

 *

 * Copyright (C) 1994 - 1999 Ralf Baechle

 */

#ifndef _ASM_KEYBOARD_H

#define _ASM_KEYBOARD_H

#ifdef __KERNEL__

#include <linux/config.h>

#include <linux/delay.h>

#include <linux/ioport.h>

#include <linux/kd.h>

#include <linux/pm.h>

#define DISABLE_KBD_DURING_INTERRUPTS 0

#ifdef CONFIG_PC_KEYB

extern int pckbd_setkeycode(unsigned int scancode, unsigned int keycode);

extern int pckbd_getkeycode(unsigned int scancode);

extern int pckbd_translate(unsigned char scancode, unsigned char *keycode,

                           char raw_mode);

extern char pckbd_unexpected_up(unsigned char keycode);

extern void pckbd_leds(unsigned char leds);

extern void pckbd_init_hw(void);

extern int pckbd_pm_resume(struct pm_dev *, pm_request_t, void *);

extern pm_callback pm_kbd_request_override;

extern unsigned char pckbd_sysrq_xlate[128];

extern void kbd_forward_char (int ch);

#define kbd_setkeycode          pckbd_setkeycode

#define kbd_getkeycode          pckbd_getkeycode

#define kbd_translate           pckbd_translate

#define kbd_unexpected_up       pckbd_unexpected_up

#define kbd_leds                pckbd_leds

#define kbd_init_hw             pckbd_init_hw

#define kbd_sysrq_xlate         pckbd_sysrq_xlate

#define SYSRQ_KEY 0x54

/* Some stoneage hardware needs delays after some operations.  */

#define kbd_pause() do { } while(0)

struct kbd_ops {

        /* Keyboard driver resource allocation  */

        void (*kbd_request_region)(void);

        int (*kbd_request_irq)(void (*handler)(int, void *, struct pt_regs *));

        /* PSaux driver resource management  */

        int (*aux_request_irq)(void (*handler)(int, void *, struct pt_regs *));

        void (*aux_free_irq)(void);

        /* Methods to access the keyboard processor's I/O registers  */

        unsigned char (*kbd_read_input)(void);

        void (*kbd_write_output)(unsigned char val);

        void (*kbd_write_command)(unsigned char val);

        unsigned char (*kbd_read_status)(void);

};

extern struct kbd_ops *kbd_ops;

#define kbd_controller_present() (kbd_ops != 0)

/* Do the actual calls via kbd_ops vector  */

#define kbd_request_region() kbd_ops->kbd_request_region()

#define kbd_request_irq(handler) kbd_ops->kbd_request_irq(handler)

#define aux_request_irq(hand, dev_id) kbd_ops->aux_request_irq(hand)

#define aux_free_irq(dev_id) kbd_ops->aux_free_irq()

#define kbd_read_input() kbd_ops->kbd_read_input()

#define kbd_write_output(val) kbd_ops->kbd_write_output(val)

#define kbd_write_command(val) kbd_ops->kbd_write_command(val)

#define kbd_read_status() kbd_ops->kbd_read_status()

#else

extern int kbd_setkeycode(unsigned int scancode, unsigned int keycode);

extern int kbd_getkeycode(unsigned int scancode);

extern int kbd_translate(unsigned char scancode, unsigned char *keycode,

        char raw_mode);

extern char kbd_unexpected_up(unsigned char keycode);

extern void kbd_leds(unsigned char leds);

extern void kbd_init_hw(void);

extern unsigned char *kbd_sysrq_xlate;

extern unsigned char kbd_sysrq_key;

#define SYSRQ_KEY kbd_sysrq_key

#endif

#endif /* __KERNEL */

#endif /* _ASM_KEYBOARD_H */