WebSVN – HelenOS-historic – Diff – /kernel/trunk/arch/ia32/src/drivers/i8042.c


/*
 * Copyright (C) 2001-2004 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#include <arch/i8042.h>
#include <arch/i8259.h>
#include <arch/interrupt.h>
#include <cpu.h>
#include <arch/asm.h>
#include <arch.h>
#include <print.h>
#include <synch/spinlock.h>
#include <typedefs.h>
#include <console/chardev.h>
#include <console/console.h>
 
/**
 * i8042 processor driver.
 * It takes care of low-level keyboard functions.
 */
 
#define SPECIAL     '?'
#define KEY_RELEASE 0x80
 
static void key_released(__u8 sc);
static void key_pressed(__u8 sc);
 
#define PRESSED_SHIFT       (1<<0)
#define PRESSED_CAPSLOCK    (1<<1)
#define LOCKED_CAPSLOCK     (1<<0)
 
static spinlock_t keylock;      /**< keylock protects keyflags and lockflags. */
static volatile int keyflags;       /**< Tracking of multiple keypresses. */
static volatile int lockflags;      /**< Tracking of multiple keys lockings. */
 
static void i8042_suspend(void);
static void i8042_resume(void);
 
static chardev_t kbrd;
static chardev_operations_t ops = {
    .suspend = i8042_suspend,
    .resume = i8042_resume
};
 
/** Primary meaning of scancodes. */
static char sc_primary_map[] = {
    SPECIAL, /* 0x00 */
    SPECIAL, /* 0x01 - Esc */
    '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=',
    SPECIAL, /* 0x0e - Backspace */
    '\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',
    SPECIAL, /* 0x1d - LCtrl */
    'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'',
    '`',
    SPECIAL, /* 0x2a - LShift */
    '\\',
    'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/',
    SPECIAL, /* 0x36 - RShift */
    '*',
    SPECIAL, /* 0x38 - LAlt */
    ' ',
    SPECIAL, /* 0x3a - CapsLock */
    SPECIAL, /* 0x3b - F1 */
    SPECIAL, /* 0x3c - F2 */
    SPECIAL, /* 0x3d - F3 */
    SPECIAL, /* 0x3e - F4 */
    SPECIAL, /* 0x3f - F5 */
    SPECIAL, /* 0x40 - F6 */
    SPECIAL, /* 0x41 - F7 */
    SPECIAL, /* 0x42 - F8 */
    SPECIAL, /* 0x43 - F9 */
    SPECIAL, /* 0x44 - F10 */
    SPECIAL, /* 0x45 - NumLock */
    SPECIAL, /* 0x46 - ScrollLock */
    '7', '8', '9', '-',
    '4', '5', '6', '+',
    '1', '2', '3',
    '0', '.',
    SPECIAL, /* 0x54 - Alt-SysRq */
    SPECIAL, /* 0x55 - F11/F12/PF1/FN */
    SPECIAL, /* 0x56 - unlabelled key next to LAlt */
    SPECIAL, /* 0x57 - F11 */
    SPECIAL, /* 0x58 - F12 */
    SPECIAL, /* 0x59 */
    SPECIAL, /* 0x5a */
    SPECIAL, /* 0x5b */
    SPECIAL, /* 0x5c */
    SPECIAL, /* 0x5d */
    SPECIAL, /* 0x5e */
    SPECIAL, /* 0x5f */
    SPECIAL, /* 0x60 */
    SPECIAL, /* 0x61 */
    SPECIAL, /* 0x62 */
    SPECIAL, /* 0x63 */
    SPECIAL, /* 0x64 */
    SPECIAL, /* 0x65 */
    SPECIAL, /* 0x66 */
    SPECIAL, /* 0x67 */
    SPECIAL, /* 0x68 */
    SPECIAL, /* 0x69 */
    SPECIAL, /* 0x6a */
    SPECIAL, /* 0x6b */
    SPECIAL, /* 0x6c */
    SPECIAL, /* 0x6d */
    SPECIAL, /* 0x6e */
    SPECIAL, /* 0x6f */
    SPECIAL, /* 0x70 */
    SPECIAL, /* 0x71 */
    SPECIAL, /* 0x72 */
    SPECIAL, /* 0x73 */
    SPECIAL, /* 0x74 */
    SPECIAL, /* 0x75 */
    SPECIAL, /* 0x76 */
    SPECIAL, /* 0x77 */
    SPECIAL, /* 0x78 */
    SPECIAL, /* 0x79 */
    SPECIAL, /* 0x7a */
    SPECIAL, /* 0x7b */
    SPECIAL, /* 0x7c */
    SPECIAL, /* 0x7d */
    SPECIAL, /* 0x7e */
    SPECIAL, /* 0x7f */
};
 
/** Secondary meaning of scancodes. */
static char sc_secondary_map[] = {
    SPECIAL, /* 0x00 */
    SPECIAL, /* 0x01 - Esc */
    '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+',
    SPECIAL, /* 0x0e - Backspace */
    '\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n',
    SPECIAL, /* 0x1d - LCtrl */
    'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"',
    '~',
    SPECIAL, /* 0x2a - LShift */
    '|',
    'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?',
    SPECIAL, /* 0x36 - RShift */
    '*',
    SPECIAL, /* 0x38 - LAlt */
    ' ',
    SPECIAL, /* 0x3a - CapsLock */
    SPECIAL, /* 0x3b - F1 */
    SPECIAL, /* 0x3c - F2 */
    SPECIAL, /* 0x3d - F3 */
    SPECIAL, /* 0x3e - F4 */
    SPECIAL, /* 0x3f - F5 */
    SPECIAL, /* 0x40 - F6 */
    SPECIAL, /* 0x41 - F7 */
    SPECIAL, /* 0x42 - F8 */
    SPECIAL, /* 0x43 - F9 */
    SPECIAL, /* 0x44 - F10 */
    SPECIAL, /* 0x45 - NumLock */
    SPECIAL, /* 0x46 - ScrollLock */
    '7', '8', '9', '-',
    '4', '5', '6', '+',
    '1', '2', '3',
    '0', '.',
    SPECIAL, /* 0x54 - Alt-SysRq */
    SPECIAL, /* 0x55 - F11/F12/PF1/FN */
    SPECIAL, /* 0x56 - unlabelled key next to LAlt */
    SPECIAL, /* 0x57 - F11 */
    SPECIAL, /* 0x58 - F12 */
    SPECIAL, /* 0x59 */
    SPECIAL, /* 0x5a */
    SPECIAL, /* 0x5b */
    SPECIAL, /* 0x5c */
    SPECIAL, /* 0x5d */
    SPECIAL, /* 0x5e */
    SPECIAL, /* 0x5f */
    SPECIAL, /* 0x60 */
    SPECIAL, /* 0x61 */
    SPECIAL, /* 0x62 */
    SPECIAL, /* 0x63 */
    SPECIAL, /* 0x64 */
    SPECIAL, /* 0x65 */
    SPECIAL, /* 0x66 */
    SPECIAL, /* 0x67 */
    SPECIAL, /* 0x68 */
    SPECIAL, /* 0x69 */
    SPECIAL, /* 0x6a */
    SPECIAL, /* 0x6b */
    SPECIAL, /* 0x6c */
    SPECIAL, /* 0x6d */
    SPECIAL, /* 0x6e */
    SPECIAL, /* 0x6f */
    SPECIAL, /* 0x70 */
    SPECIAL, /* 0x71 */
    SPECIAL, /* 0x72 */
    SPECIAL, /* 0x73 */
    SPECIAL, /* 0x74 */
    SPECIAL, /* 0x75 */
    SPECIAL, /* 0x76 */
    SPECIAL, /* 0x77 */
    SPECIAL, /* 0x78 */
    SPECIAL, /* 0x79 */
    SPECIAL, /* 0x7a */
    SPECIAL, /* 0x7b */
    SPECIAL, /* 0x7c */
    SPECIAL, /* 0x7d */
    SPECIAL, /* 0x7e */
    SPECIAL, /* 0x7f */
};
 
/** Initialize i8042. */
void i8042_init(void)
{
    trap_register(VECTOR_KBD, i8042_interrupt);
    spinlock_initialize(&keylock);
    chardev_initialize(&kbrd, &ops);
    stdin = &kbrd;
}
 
/** Process i8042 interrupt.
 *
 * @param n Interrupt vector.
 * @param stack Interrupted stack.
 */
void i8042_interrupt(__u8 n, __native stack[])
{
    __u8 x;
 
    trap_virtual_eoi();
    x = inb(0x60);
    if (x & KEY_RELEASE)
        key_released(x ^ KEY_RELEASE);
    else
        key_pressed(x);
}
 
/** Process release of key.
 *
 * @param sc Scancode of the key being released.
 */
void key_released(__u8 sc)
{
    spinlock_lock(&keylock);
    switch (sc) {
        case SC_LSHIFT:
        case SC_RSHIFT:
        keyflags &= ~PRESSED_SHIFT;
        break;
        case SC_CAPSLOCK:
        keyflags &= ~PRESSED_CAPSLOCK;
        if (lockflags & LOCKED_CAPSLOCK)
            lockflags &= ~LOCKED_CAPSLOCK;
        else
            lockflags |= LOCKED_CAPSLOCK;
        break;
        default:
        break;
    }
    spinlock_unlock(&keylock);
}
 
/** Process keypress.
 *
 * @param sc Scancode of the key being pressed.
 */
void key_pressed(__u8 sc)
{
    char *map = sc_primary_map;
    char ascii = sc_primary_map[sc];
    bool shift, capslock;
    bool letter = false;
 
    spinlock_lock(&keylock);
    switch (sc) {
        case SC_LSHIFT:
        case SC_RSHIFT:
            keyflags |= PRESSED_SHIFT;
        break;
        case SC_CAPSLOCK:
        keyflags |= PRESSED_CAPSLOCK;
        break;
        default:
            letter = (ascii >= 'a') && (ascii <= 'z');
        capslock = (keyflags & PRESSED_CAPSLOCK) || (lockflags & LOCKED_CAPSLOCK);
        shift = keyflags & PRESSED_SHIFT;
        if (letter && capslock)
            shift = !shift;
        if (shift)
            map = sc_secondary_map;
        chardev_push_character(&kbrd, map[sc]);
        break;
    }
    spinlock_unlock(&keylock);
}
 
/* Called from getc(). */
void i8042_resume(void)
{
}
 
/* Called from getc(). */
void i8042_suspend(void)
{
}
 

Rev 509	Rev 511
1	/*	1	/*
2	* Copyright (C) 2001-2004 Jakub Jermar	2	* Copyright (C) 2001-2004 Jakub Jermar
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	#include <arch/i8042.h>	29	#include <arch/i8042.h>
30	#include <arch/i8259.h>	30	#include <arch/i8259.h>
31	#include <arch/interrupt.h>	31	#include <arch/interrupt.h>
32	#include <cpu.h>	32	#include <cpu.h>
33	#include <arch/asm.h>	33	#include <arch/asm.h>
34	#include <arch.h>	34	#include <arch.h>
35	#include <print.h>	35	#include <print.h>
36	#include <synch/spinlock.h>	36	#include <synch/spinlock.h>
37	#include <typedefs.h>	37	#include <typedefs.h>
-		38	#include <console/chardev.h>
-		39	#include <console/console.h>
38		40
39	/**	41	/**
40	* i8042 processor driver.	42	* i8042 processor driver.
41	* It takes care of low-level keyboard functions.	43	* It takes care of low-level keyboard functions.
42	*/	44	*/
43		45
44	#define SPECIAL '?'	46	#define SPECIAL '?'
45	#define KEY_RELEASE 0x80	47	#define KEY_RELEASE 0x80
46		48
47	static void key_released(__u8 sc);	49	static void key_released(__u8 sc);
48	static void key_pressed(__u8 sc);	50	static void key_pressed(__u8 sc);
49		51
50	#define PRESSED_SHIFT (1<<0)	52	#define PRESSED_SHIFT (1<<0)
51	#define PRESSED_CAPSLOCK (1<<1)	53	#define PRESSED_CAPSLOCK (1<<1)
52	#define LOCKED_CAPSLOCK (1<<0)	54	#define LOCKED_CAPSLOCK (1<<0)
53		55
54	static spinlock_t keylock; /*< keylock protects keyflags and lockflags. /	56	static spinlock_t keylock; /*< keylock protects keyflags and lockflags. /
55	static volatile int keyflags; /*< Tracking of multiple keypresses. /	57	static volatile int keyflags; /*< Tracking of multiple keypresses. /
56	static volatile int lockflags; /*< Tracking of multiple keys lockings. /	58	static volatile int lockflags; /*< Tracking of multiple keys lockings. /
57		59
-		60	static void i8042_suspend(void);
-		61	static void i8042_resume(void);
-		62
-		63	static chardev_t kbrd;
-		64	static chardev_operations_t ops = {
-		65	.suspend = i8042_suspend,
-		66	.resume = i8042_resume
-		67	};
-		68
58	/** Primary meaning of scancodes. */	69	/** Primary meaning of scancodes. */
59	static char sc_primary_map[] = {	70	static char sc_primary_map[] = {
60	SPECIAL, /* 0x00 */	71	SPECIAL, /* 0x00 */
61	SPECIAL, /* 0x01 - Esc */	72	SPECIAL, /* 0x01 - Esc */
62	'1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=',	73	'1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=',
63	SPECIAL, /* 0x0e - Backspace */	74	SPECIAL, /* 0x0e - Backspace */
64	'\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',	75	'\t', 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',
65	SPECIAL, /* 0x1d - LCtrl */	76	SPECIAL, /* 0x1d - LCtrl */
66	'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'',	77	'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'',
67	'`',	78	'`',
68	SPECIAL, /* 0x2a - LShift */	79	SPECIAL, /* 0x2a - LShift */
69	'\\',	80	'\\',
70	'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/',	81	'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/',
71	SPECIAL, /* 0x36 - RShift */	82	SPECIAL, /* 0x36 - RShift */
72	'*',	83	'*',
73	SPECIAL, /* 0x38 - LAlt */	84	SPECIAL, /* 0x38 - LAlt */
74	' ',	85	' ',
75	SPECIAL, /* 0x3a - CapsLock */	86	SPECIAL, /* 0x3a - CapsLock */
76	SPECIAL, /* 0x3b - F1 */	87	SPECIAL, /* 0x3b - F1 */
77	SPECIAL, /* 0x3c - F2 */	88	SPECIAL, /* 0x3c - F2 */
78	SPECIAL, /* 0x3d - F3 */	89	SPECIAL, /* 0x3d - F3 */
79	SPECIAL, /* 0x3e - F4 */	90	SPECIAL, /* 0x3e - F4 */
80	SPECIAL, /* 0x3f - F5 */	91	SPECIAL, /* 0x3f - F5 */
81	SPECIAL, /* 0x40 - F6 */	92	SPECIAL, /* 0x40 - F6 */
82	SPECIAL, /* 0x41 - F7 */	93	SPECIAL, /* 0x41 - F7 */
83	SPECIAL, /* 0x42 - F8 */	94	SPECIAL, /* 0x42 - F8 */
84	SPECIAL, /* 0x43 - F9 */	95	SPECIAL, /* 0x43 - F9 */
85	SPECIAL, /* 0x44 - F10 */	96	SPECIAL, /* 0x44 - F10 */
86	SPECIAL, /* 0x45 - NumLock */	97	SPECIAL, /* 0x45 - NumLock */
87	SPECIAL, /* 0x46 - ScrollLock */	98	SPECIAL, /* 0x46 - ScrollLock */
88	'7', '8', '9', '-',	99	'7', '8', '9', '-',
89	'4', '5', '6', '+',	100	'4', '5', '6', '+',
90	'1', '2', '3',	101	'1', '2', '3',
91	'0', '.',	102	'0', '.',
92	SPECIAL, /* 0x54 - Alt-SysRq */	103	SPECIAL, /* 0x54 - Alt-SysRq */
93	SPECIAL, /* 0x55 - F11/F12/PF1/FN */	104	SPECIAL, /* 0x55 - F11/F12/PF1/FN */
94	SPECIAL, /* 0x56 - unlabelled key next to LAlt */	105	SPECIAL, /* 0x56 - unlabelled key next to LAlt */
95	SPECIAL, /* 0x57 - F11 */	106	SPECIAL, /* 0x57 - F11 */
96	SPECIAL, /* 0x58 - F12 */	107	SPECIAL, /* 0x58 - F12 */
97	SPECIAL, /* 0x59 */	108	SPECIAL, /* 0x59 */
98	SPECIAL, /* 0x5a */	109	SPECIAL, /* 0x5a */
99	SPECIAL, /* 0x5b */	110	SPECIAL, /* 0x5b */
100	SPECIAL, /* 0x5c */	111	SPECIAL, /* 0x5c */
101	SPECIAL, /* 0x5d */	112	SPECIAL, /* 0x5d */
102	SPECIAL, /* 0x5e */	113	SPECIAL, /* 0x5e */
103	SPECIAL, /* 0x5f */	114	SPECIAL, /* 0x5f */
104	SPECIAL, /* 0x60 */	115	SPECIAL, /* 0x60 */
105	SPECIAL, /* 0x61 */	116	SPECIAL, /* 0x61 */
106	SPECIAL, /* 0x62 */	117	SPECIAL, /* 0x62 */
107	SPECIAL, /* 0x63 */	118	SPECIAL, /* 0x63 */
108	SPECIAL, /* 0x64 */	119	SPECIAL, /* 0x64 */
109	SPECIAL, /* 0x65 */	120	SPECIAL, /* 0x65 */
110	SPECIAL, /* 0x66 */	121	SPECIAL, /* 0x66 */
111	SPECIAL, /* 0x67 */	122	SPECIAL, /* 0x67 */
112	SPECIAL, /* 0x68 */	123	SPECIAL, /* 0x68 */
113	SPECIAL, /* 0x69 */	124	SPECIAL, /* 0x69 */
114	SPECIAL, /* 0x6a */	125	SPECIAL, /* 0x6a */
115	SPECIAL, /* 0x6b */	126	SPECIAL, /* 0x6b */
116	SPECIAL, /* 0x6c */	127	SPECIAL, /* 0x6c */
117	SPECIAL, /* 0x6d */	128	SPECIAL, /* 0x6d */
118	SPECIAL, /* 0x6e */	129	SPECIAL, /* 0x6e */
119	SPECIAL, /* 0x6f */	130	SPECIAL, /* 0x6f */
120	SPECIAL, /* 0x70 */	131	SPECIAL, /* 0x70 */
121	SPECIAL, /* 0x71 */	132	SPECIAL, /* 0x71 */
122	SPECIAL, /* 0x72 */	133	SPECIAL, /* 0x72 */
123	SPECIAL, /* 0x73 */	134	SPECIAL, /* 0x73 */
124	SPECIAL, /* 0x74 */	135	SPECIAL, /* 0x74 */
125	SPECIAL, /* 0x75 */	136	SPECIAL, /* 0x75 */
126	SPECIAL, /* 0x76 */	137	SPECIAL, /* 0x76 */
127	SPECIAL, /* 0x77 */	138	SPECIAL, /* 0x77 */
128	SPECIAL, /* 0x78 */	139	SPECIAL, /* 0x78 */
129	SPECIAL, /* 0x79 */	140	SPECIAL, /* 0x79 */
130	SPECIAL, /* 0x7a */	141	SPECIAL, /* 0x7a */
131	SPECIAL, /* 0x7b */	142	SPECIAL, /* 0x7b */
132	SPECIAL, /* 0x7c */	143	SPECIAL, /* 0x7c */
133	SPECIAL, /* 0x7d */	144	SPECIAL, /* 0x7d */
134	SPECIAL, /* 0x7e */	145	SPECIAL, /* 0x7e */
135	SPECIAL, /* 0x7f */	146	SPECIAL, /* 0x7f */
136	};	147	};
137		148
138	/** Secondary meaning of scancodes. */	149	/** Secondary meaning of scancodes. */
139	static char sc_secondary_map[] = {	150	static char sc_secondary_map[] = {
140	SPECIAL, /* 0x00 */	151	SPECIAL, /* 0x00 */
141	SPECIAL, /* 0x01 - Esc */	152	SPECIAL, /* 0x01 - Esc */
142	'!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+',	153	'!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+',
143	SPECIAL, /* 0x0e - Backspace */	154	SPECIAL, /* 0x0e - Backspace */
144	'\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n',	155	'\t', 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', '\n',
145	SPECIAL, /* 0x1d - LCtrl */	156	SPECIAL, /* 0x1d - LCtrl */
146	'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"',	157	'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"',
147	'~',	158	'~',
148	SPECIAL, /* 0x2a - LShift */	159	SPECIAL, /* 0x2a - LShift */
149	'\|',	160	'\|',
150	'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?',	161	'Z', 'X', 'C', 'V', 'B', 'N', 'M', '<', '>', '?',
151	SPECIAL, /* 0x36 - RShift */	162	SPECIAL, /* 0x36 - RShift */
152	'*',	163	'*',
153	SPECIAL, /* 0x38 - LAlt */	164	SPECIAL, /* 0x38 - LAlt */
154	' ',	165	' ',
155	SPECIAL, /* 0x3a - CapsLock */	166	SPECIAL, /* 0x3a - CapsLock */
156	SPECIAL, /* 0x3b - F1 */	167	SPECIAL, /* 0x3b - F1 */
157	SPECIAL, /* 0x3c - F2 */	168	SPECIAL, /* 0x3c - F2 */
158	SPECIAL, /* 0x3d - F3 */	169	SPECIAL, /* 0x3d - F3 */
159	SPECIAL, /* 0x3e - F4 */	170	SPECIAL, /* 0x3e - F4 */
160	SPECIAL, /* 0x3f - F5 */	171	SPECIAL, /* 0x3f - F5 */
161	SPECIAL, /* 0x40 - F6 */	172	SPECIAL, /* 0x40 - F6 */
162	SPECIAL, /* 0x41 - F7 */	173	SPECIAL, /* 0x41 - F7 */
163	SPECIAL, /* 0x42 - F8 */	174	SPECIAL, /* 0x42 - F8 */
164	SPECIAL, /* 0x43 - F9 */	175	SPECIAL, /* 0x43 - F9 */
165	SPECIAL, /* 0x44 - F10 */	176	SPECIAL, /* 0x44 - F10 */
166	SPECIAL, /* 0x45 - NumLock */	177	SPECIAL, /* 0x45 - NumLock */
167	SPECIAL, /* 0x46 - ScrollLock */	178	SPECIAL, /* 0x46 - ScrollLock */
168	'7', '8', '9', '-',	179	'7', '8', '9', '-',
169	'4', '5', '6', '+',	180	'4', '5', '6', '+',
170	'1', '2', '3',	181	'1', '2', '3',
171	'0', '.',	182	'0', '.',
172	SPECIAL, /* 0x54 - Alt-SysRq */	183	SPECIAL, /* 0x54 - Alt-SysRq */
173	SPECIAL, /* 0x55 - F11/F12/PF1/FN */	184	SPECIAL, /* 0x55 - F11/F12/PF1/FN */
174	SPECIAL, /* 0x56 - unlabelled key next to LAlt */	185	SPECIAL, /* 0x56 - unlabelled key next to LAlt */
175	SPECIAL, /* 0x57 - F11 */	186	SPECIAL, /* 0x57 - F11 */
176	SPECIAL, /* 0x58 - F12 */	187	SPECIAL, /* 0x58 - F12 */
177	SPECIAL, /* 0x59 */	188	SPECIAL, /* 0x59 */
178	SPECIAL, /* 0x5a */	189	SPECIAL, /* 0x5a */
179	SPECIAL, /* 0x5b */	190	SPECIAL, /* 0x5b */
180	SPECIAL, /* 0x5c */	191	SPECIAL, /* 0x5c */
181	SPECIAL, /* 0x5d */	192	SPECIAL, /* 0x5d */
182	SPECIAL, /* 0x5e */	193	SPECIAL, /* 0x5e */
183	SPECIAL, /* 0x5f */	194	SPECIAL, /* 0x5f */
184	SPECIAL, /* 0x60 */	195	SPECIAL, /* 0x60 */
185	SPECIAL, /* 0x61 */	196	SPECIAL, /* 0x61 */
186	SPECIAL, /* 0x62 */	197	SPECIAL, /* 0x62 */
187	SPECIAL, /* 0x63 */	198	SPECIAL, /* 0x63 */
188	SPECIAL, /* 0x64 */	199	SPECIAL, /* 0x64 */
189	SPECIAL, /* 0x65 */	200	SPECIAL, /* 0x65 */
190	SPECIAL, /* 0x66 */	201	SPECIAL, /* 0x66 */
191	SPECIAL, /* 0x67 */	202	SPECIAL, /* 0x67 */
192	SPECIAL, /* 0x68 */	203	SPECIAL, /* 0x68 */
193	SPECIAL, /* 0x69 */	204	SPECIAL, /* 0x69 */
194	SPECIAL, /* 0x6a */	205	SPECIAL, /* 0x6a */
195	SPECIAL, /* 0x6b */	206	SPECIAL, /* 0x6b */
196	SPECIAL, /* 0x6c */	207	SPECIAL, /* 0x6c */
197	SPECIAL, /* 0x6d */	208	SPECIAL, /* 0x6d */
198	SPECIAL, /* 0x6e */	209	SPECIAL, /* 0x6e */
199	SPECIAL, /* 0x6f */	210	SPECIAL, /* 0x6f */
200	SPECIAL, /* 0x70 */	211	SPECIAL, /* 0x70 */
201	SPECIAL, /* 0x71 */	212	SPECIAL, /* 0x71 */
202	SPECIAL, /* 0x72 */	213	SPECIAL, /* 0x72 */
203	SPECIAL, /* 0x73 */	214	SPECIAL, /* 0x73 */
204	SPECIAL, /* 0x74 */	215	SPECIAL, /* 0x74 */
205	SPECIAL, /* 0x75 */	216	SPECIAL, /* 0x75 */
206	SPECIAL, /* 0x76 */	217	SPECIAL, /* 0x76 */
207	SPECIAL, /* 0x77 */	218	SPECIAL, /* 0x77 */
208	SPECIAL, /* 0x78 */	219	SPECIAL, /* 0x78 */
209	SPECIAL, /* 0x79 */	220	SPECIAL, /* 0x79 */
210	SPECIAL, /* 0x7a */	221	SPECIAL, /* 0x7a */
211	SPECIAL, /* 0x7b */	222	SPECIAL, /* 0x7b */
212	SPECIAL, /* 0x7c */	223	SPECIAL, /* 0x7c */
213	SPECIAL, /* 0x7d */	224	SPECIAL, /* 0x7d */
214	SPECIAL, /* 0x7e */	225	SPECIAL, /* 0x7e */
215	SPECIAL, /* 0x7f */	226	SPECIAL, /* 0x7f */
216	};	227	};
217		228
218	/** Initialize i8042. */	229	/** Initialize i8042. */
219	void i8042_init(void)	230	void i8042_init(void)
220	{	231	{
221	trap_register(VECTOR_KBD, i8042_interrupt);	232	trap_register(VECTOR_KBD, i8042_interrupt);
222	spinlock_initialize(&keylock);	233	spinlock_initialize(&keylock);
-		234	chardev_initialize(&kbrd, &ops);
-		235	stdin = &kbrd;
223	}	236	}
224		237
225	/** Process i8042 interrupt.	238	/** Process i8042 interrupt.
226	*	239	*
227	* @param n Interrupt vector.	240	* @param n Interrupt vector.
228	* @param stack Interrupted stack.	241	* @param stack Interrupted stack.
229	*/	242	*/
230	void i8042_interrupt(__u8 n, __native stack[])	243	void i8042_interrupt(__u8 n, __native stack[])
231	{	244	{
232	__u8 x;	245	__u8 x;
233		246
234	trap_virtual_eoi();	247	trap_virtual_eoi();
235	x = inb(0x60);	248	x = inb(0x60);
236	if (x & KEY_RELEASE)	249	if (x & KEY_RELEASE)
237	key_released(x ^ KEY_RELEASE);	250	key_released(x ^ KEY_RELEASE);
238	else	251	else
239	key_pressed(x);	252	key_pressed(x);
240	}	253	}
241		254
242	/** Process release of key.	255	/** Process release of key.
243	*	256	*
244	* @param sc Scancode of the key being released.	257	* @param sc Scancode of the key being released.
245	*/	258	*/
246	void key_released(__u8 sc)	259	void key_released(__u8 sc)
247	{	260	{
248	spinlock_lock(&keylock);	261	spinlock_lock(&keylock);
249	switch (sc) {	262	switch (sc) {
250	case SC_LSHIFT:	263	case SC_LSHIFT:
251	case SC_RSHIFT:	264	case SC_RSHIFT:
252	keyflags &= ~PRESSED_SHIFT;	265	keyflags &= ~PRESSED_SHIFT;
253	break;	266	break;
254	case SC_CAPSLOCK:	267	case SC_CAPSLOCK:
255	keyflags &= ~PRESSED_CAPSLOCK;	268	keyflags &= ~PRESSED_CAPSLOCK;
256	if (lockflags & LOCKED_CAPSLOCK)	269	if (lockflags & LOCKED_CAPSLOCK)
257	lockflags &= ~LOCKED_CAPSLOCK;	270	lockflags &= ~LOCKED_CAPSLOCK;
258	else	271	else
259	lockflags \|= LOCKED_CAPSLOCK;	272	lockflags \|= LOCKED_CAPSLOCK;
260	break;	273	break;
261	default:	274	default:
262	break;	275	break;
263	}	276	}
264	spinlock_unlock(&keylock);	277	spinlock_unlock(&keylock);
265	}	278	}
266		279
267	/** Process keypress.	280	/** Process keypress.
268	*	281	*
269	* @param sc Scancode of the key being pressed.	282	* @param sc Scancode of the key being pressed.
270	*/	283	*/
271	void key_pressed(__u8 sc)	284	void key_pressed(__u8 sc)
272	{	285	{
273	char *map = sc_primary_map;	286	char *map = sc_primary_map;
274	char ascii = sc_primary_map[sc];	287	char ascii = sc_primary_map[sc];
275	bool shift, capslock;	288	bool shift, capslock;
276	bool letter = false;	289	bool letter = false;
277		290
278	spinlock_lock(&keylock);	291	spinlock_lock(&keylock);
279	switch (sc) {	292	switch (sc) {
280	case SC_LSHIFT:	293	case SC_LSHIFT:
281	case SC_RSHIFT:	294	case SC_RSHIFT:
282	keyflags \|= PRESSED_SHIFT;	295	keyflags \|= PRESSED_SHIFT;
283	break;	296	break;
284	case SC_CAPSLOCK:	297	case SC_CAPSLOCK:
285	keyflags \|= PRESSED_CAPSLOCK;	298	keyflags \|= PRESSED_CAPSLOCK;
286	break;	299	break;
287	default:	300	default:
288	letter = (ascii >= 'a') && (ascii <= 'z');	301	letter = (ascii >= 'a') && (ascii <= 'z');
289	capslock = (keyflags & PRESSED_CAPSLOCK) \|\| (lockflags & LOCKED_CAPSLOCK);	302	capslock = (keyflags & PRESSED_CAPSLOCK) \|\| (lockflags & LOCKED_CAPSLOCK);
290	shift = keyflags & PRESSED_SHIFT;	303	shift = keyflags & PRESSED_SHIFT;
291	if (letter && capslock)	304	if (letter && capslock)
292	shift = !shift;	305	shift = !shift;
293	if (shift)	306	if (shift)
294	map = sc_secondary_map;	307	map = sc_secondary_map;
295	putchar(map[sc]);	308	chardev_push_character(&kbrd, map[sc]);
296	break;	309	break;
297	}	310	}
298	spinlock_unlock(&keylock);	311	spinlock_unlock(&keylock);
299	}	312	}
-		313
-		314	/* Called from getc(). */
-		315	void i8042_resume(void)
-		316	{
-		317	}
-		318
-		319	/* Called from getc(). */
-		320	void i8042_suspend(void)
-		321	{
-		322	}
300		323

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(root)/kernel/trunk/arch/ia32/src/drivers/i8042.c – Rev 509 → 511