Subversion Repositories HelenOS-historic

Rev

Rev 534 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 534 Rev 567
1 
/*
 1 
/*
2 
 * Copyright (C) 2003 Josef Cejka
 2 
 * Copyright (C) 2003 Josef Cejka
3 
 * Copyright (C) 2005 Jakub Jermar
 3 
 * Copyright (C) 2005 Jakub Jermar
4 
 * All rights reserved.
 4 
 * All rights reserved.
5 
 *
 5 
 *
6 
 * Redistribution and use in source and binary forms, with or without
 6 
 * Redistribution and use in source and binary forms, with or without
7 
 * modification, are permitted provided that the following conditions
 7 
 * modification, are permitted provided that the following conditions
8 
 * are met:
 8 
 * are met:
9 
 *
 9 
 *
10 
 * - Redistributions of source code must retain the above copyright
 10 
 * - Redistributions of source code must retain the above copyright
11 
 *   notice, this list of conditions and the following disclaimer.
 11 
 *   notice, this list of conditions and the following disclaimer.
12 
 * - Redistributions in binary form must reproduce the above copyright
 12 
 * - Redistributions in binary form must reproduce the above copyright
13 
 *   notice, this list of conditions and the following disclaimer in the
 13 
 *   notice, this list of conditions and the following disclaimer in the
14 
 *   documentation and/or other materials provided with the distribution.
 14 
 *   documentation and/or other materials provided with the distribution.
15 
 * - The name of the author may not be used to endorse or promote products
 15 
 * - The name of the author may not be used to endorse or promote products
16 
 *   derived from this software without specific prior written permission.
 16 
 *   derived from this software without specific prior written permission.
17 
 *
 17 
 *
18 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 18 
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 19 
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 20 
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 21 
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 22 
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 23 
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 24 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 25 
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 26 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 27 
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 
 */
 28 
 */
29 
 
 29 
 
30 
#include <arch/drivers/keyboard.h>
 30 
#include <arch/drivers/keyboard.h>
31 
#include <console/chardev.h>
 31 
#include <console/chardev.h>
32 
#include <console/console.h>
 32 
#include <console/console.h>
33 
#include <arch/cp0.h>
 33 
#include <arch/cp0.h>
34 
#include <putchar.h>
 34 
#include <putchar.h>
35 
#include <synch/spinlock.h>
 35 
#include <synch/spinlock.h>
36 
#include <synch/waitq.h>
 36 
#include <synch/waitq.h>
37 
#include <typedefs.h>
 37 
#include <typedefs.h>
- 
 
 38 
#include <arch/drivers/arc.h>
38 
 
 39 
 
39 
static void keyboard_enable(void);
 40 
static void keyboard_enable(void);
40 
static void keyboard_disable(void);
 41 
static void keyboard_disable(void);
- 
 
 42 
static void arc_kb_disable(void);
- 
 
 43 
static void arc_kb_enable(void);
41 
 
 44 
 
42 
static chardev_t kbrd;
 45 
static chardev_t kbrd;
- 
 
 46 
 
43 
static chardev_operations_t ops = {
 47 
static chardev_operations_t arc_ops = {
- 
 
 48 
    .resume = arc_kb_enable,
- 
 
 49 
    .suspend = arc_kb_disable
- 
 
 50 
};
- 
 
 51 
 
- 
 
 52 
static chardev_operations_t msim_ops = {
44 
    .resume = keyboard_enable,
 53 
    .resume = keyboard_enable,
45 
    .suspend = keyboard_disable
 54 
    .suspend = keyboard_disable
46 
};
 55 
};
47 
 
 56 
 
- 
 
 57 
static int arc_kb_enabled;
- 
 
 58 
 
48 
/** Initialize keyboard subsystem. */
 59 
/** Initialize keyboard subsystem. */
49 
void keyboard_init(void)
 60 
void keyboard_init(void)
50 
{
 61 
{
- 
 
 62 
    if (arc_enabled()) {
- 
 
 63 
        chardev_initialize(&kbrd, &arc_ops);
- 
 
 64 
        arc_kb_enabled = 1;
- 
 
 65 
    } else {
51 
    cp0_unmask_int(KEYBOARD_IRQ);
 66 
        cp0_unmask_int(KEYBOARD_IRQ);
52 
    chardev_initialize(&kbrd, &ops);
 67 
        chardev_initialize(&kbrd, &msim_ops);
- 
 
 68 
    }
53 
    stdin = &kbrd;
 69 
    stdin = &kbrd;
54 
}
 70 
}
55 
 
 71 
 
56 
/** Process keyboard interrupt. */
 72 
/** Process keyboard interrupt. */
57 
void keyboard(void)
 73 
void keyboard(void)
58 
{
 74 
{
59 
    char ch;
 75 
    char ch;
60 
 
 76 
 
61 
    ch = *((char *) KEYBOARD_ADDRESS);
 77 
    ch = *((char *) KEYBOARD_ADDRESS);
62 
    chardev_push_character(&kbrd, ch);
 78 
    chardev_push_character(&kbrd, ch);
63 
}
 79 
}
64 
 
 80 
 
65 
/* Called from getc(). */
 81 
/* Called from getc(). */
66 
void keyboard_enable(void)
 82 
void keyboard_enable(void)
67 
{
 83 
{
68 
    cp0_unmask_int(KEYBOARD_IRQ);
 84 
    cp0_unmask_int(KEYBOARD_IRQ);
69 
}
 85 
}
70 
 
 86 
 
71 
/* Called from getc(). */
 87 
/* Called from getc(). */
72 
void keyboard_disable(void)
 88 
void keyboard_disable(void)
73 
{
 89 
{
74 
    cp0_mask_int(KEYBOARD_IRQ);
 90 
    cp0_mask_int(KEYBOARD_IRQ);
75 
}
 91 
}
- 
 
 92 
 
- 
 
 93 
/*****************************/
- 
 
 94 
/* Arc keyboard */
- 
 
 95 
 
- 
 
 96 
void keyboard_poll(void)
- 
 
 97 
{
- 
 
 98 
    int ch;
- 
 
 99 
 
- 
 
 100 
    if (!arc_enabled() || !arc_kb_enabled)
- 
 
 101 
        return;
- 
 
 102 
    while ((ch = arc_getchar()) != -1)
- 
 
 103 
        chardev_push_character(&kbrd, ch);     
- 
 
 104 
}
- 
 
 105 
 
- 
 
 106 
static void arc_kb_enable(void)
- 
 
 107 
{
- 
 
 108 
    arc_kb_enabled = 1;
- 
 
 109 
}
- 
 
 110 
 
- 
 
 111 
/* Called from getc(). */
- 
 
 112 
static void arc_kb_disable(void)
- 
 
 113 
{
- 
 
 114 
    arc_kb_enabled = 0;
- 
 
 115 
}
76 
 
 116