keyboard.h
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上传日期:2013-02-24
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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, 2001 Ralf Baechle
- * Copyright (C) 2001 MIPS Technologies, Inc.
- */
- #ifndef _ASM_KEYBOARD_H
- #define _ASM_KEYBOARD_H
- #ifdef __KERNEL__
- #include <linux/delay.h>
- #include <linux/ioport.h>
- #include <linux/kd.h>
- #include <asm/bootinfo.h>
- #define DISABLE_KBD_DURING_INTERRUPTS 0
- 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 int pckbd_rate(struct kbd_repeat *rep);
- extern void pckbd_init_hw(void);
- extern unsigned char pckbd_sysrq_xlate[128];
- #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_rate pckbd_rate
- #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;
- /* 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()
- #endif /* __KERNEL */
- #endif /* _ASM_KEYBOARD_H */