blob: 7af5868dea727b1bf11fbabac38c54b3e98d3690 (
plain)
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
|
/***********************************************************************
*
* (C) Copyright 2004
* DENX Software Engineering
* Wolfgang Denk, wd@denx.de
*
* Keyboard driver
*
***********************************************************************/
#include <common.h>
#include <console.h>
#include <input.h>
#include <stdio_dev.h>
#include <keyboard.h>
#include <stdio_dev.h>
static struct input_config config;
static int kbd_read_keys(struct input_config *config)
{
#if defined(CONFIG_MPC5xxx) || defined(CONFIG_ARCH_MPC8540) || \
defined(CONFIG_ARCH_MPC8541) || defined(CONFIG_ARCH_MPC8555)
/* no ISR is used, so received chars must be polled */
ps2ser_check();
#endif
return 1;
}
static int check_leds(int ret)
{
int leds;
leds = input_leds_changed(&config);
if (leds >= 0)
pckbd_leds(leds);
return ret;
}
/* test if a character is in the queue */
static int kbd_testc(struct stdio_dev *dev)
{
return check_leds(input_tstc(&config));
}
/* gets the character from the queue */
static int kbd_getc(struct stdio_dev *dev)
{
return check_leds(input_getc(&config));
}
void handle_scancode(unsigned char scan_code)
{
bool release = false;
/* Compare with i8042_kbd_check() in i8042.c if some logic is missing */
if (scan_code & 0x80) {
scan_code &= 0x7f;
release = true;
}
input_add_keycode(&config, scan_code, release);
}
/* TODO: convert to driver model */
int kbd_init (void)
{
struct stdio_dev kbddev;
struct input_config *input = &config;
if(kbd_init_hw()==-1)
return -1;
memset (&kbddev, 0, sizeof(kbddev));
strcpy(kbddev.name, "kbd");
kbddev.flags = DEV_FLAGS_INPUT;
kbddev.getc = kbd_getc;
kbddev.tstc = kbd_testc;
input_init(input, 0);
input->read_keys = kbd_read_keys;
input_add_tables(input, true);
return input_stdio_register(&kbddev);
}
|
