1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
/*
* 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/config.h>
#include <linux/delay.h>
#include <linux/ioport.h>
#include <linux/kd.h>
#include <asm/bootinfo.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 int pckbd_rate(struct kbd_repeat *rep);
extern void pckbd_init_hw(void);
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_rate pckbd_rate
#define kbd_init_hw pckbd_init_hw
#define kbd_sysrq_xlate pckbd_sysrq_xlate
#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;
#endif
#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 */
|
