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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
/*
* Copyright (C) 2012, Samsung Electronics
* Author : Heetae Ahn <heetae82.ahn@samsung.com>
*
* Based on inputattach.c
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/serio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/time.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <termios.h>
#include <string.h>
#include <assert.h>
#include <ctype.h>
#define SERIO_SAMSUNG 0x3d
#define CONSOLE_PROC "/proc/consoles"
#define MAX_DEV_NAME_SIZE 64
#define MAX_PATH_SIZE 128
#define MAX_BUF_SIZE 255
#define DELIM "/"
void setline(int fd, int flags, int speed)
{
struct termios t;
tcgetattr(fd, &t);
t.c_cflag = flags | CREAD | HUPCL | CLOCAL;
t.c_iflag = IGNBRK | IGNPAR;
t.c_oflag = 0;
t.c_lflag = 0;
t.c_cc[VMIN] = 1;
t.c_cc[VTIME] = 0;
cfsetispeed(&t, speed);
cfsetospeed(&t, speed);
tcsetattr(fd, TCSANOW, &t);
}
int main(int argc, char **argv)
{
unsigned long devt;
int ldisc;
int type;
long id, extra;
int fd;
char c;
FILE *fp;
char uart_name[MAX_DEV_NAME_SIZE];
char uart_path[MAX_PATH_SIZE];
char buf[MAX_BUF_SIZE];
char *token;
char *ptr;
if (argc < 1 || argc > 2)
return 1;
strncpy(uart_path, argv[1], MAX_PATH_SIZE);
token = strtok_r(argv[1], DELIM, &ptr);
while (token) {
strncpy(uart_name, token, MAX_DEV_NAME_SIZE);
token = strtok_r(NULL, DELIM, &ptr);
}
if (!(fp = fopen(CONSOLE_PROC, "r"))) {
fprintf(stderr,
"dock_kbd_attach: can't open console proc file\n");
return 1;
}
while (fgets(buf, MAX_BUF_SIZE, fp)) {
if (!strncmp(uart_name, buf, strlen(uart_name))) {
fprintf(stderr,
"dock_kbd_attach: UART %s is used by console\n",
uart_name);
fclose(fp);
return 1;
}
};
fprintf(stdout, "dock_kbd_attach: UART %s is not used by console\n",
uart_name);
fclose(fp);
if ((fd = open(uart_path, O_RDWR | O_NOCTTY | O_NONBLOCK)) < 0) {
fprintf(stderr, "dock_kbd_attach: can't open UART device\n");
return 1;
}
setline(fd, CS8, B9600);
id = 0;
extra = 0;
ldisc = N_MOUSE;
if (ioctl(fd, TIOCSETD, &ldisc)) {
fprintf(stderr, "dock_kbd_attach: can't set line discipline\n");
close(fd);
return 1;
}
devt = SERIO_SAMSUNG | (id << 8) | (extra << 16);
if (ioctl(fd, SPIOCSTYPE, &devt)) {
fprintf(stderr, "dock_kbd_attach: can't set device type\n");
close(fd);
return 1;
}
while (1)
read(fd, NULL, 0);
ldisc = 0;
ioctl(fd, TIOCSETD, &ldisc);
close(fd);
return 0;
}
|
