-
Notifications
You must be signed in to change notification settings - Fork 2
/
Copy pathread_keys_SH3.c
226 lines (213 loc) · 7.64 KB
/
read_keys_SH3.c
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
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <time.h>
#define PINCTRL_REG_BASE 0x80018000
#define PINCTRL_BANK2_PULLUP_REG 0x620
#define PINCTRL_BANK4_PULLUP_REG 0x640
#define PINCTRL_DRIVE10_REG 0x3A0
#define PINCTRL_DRIVE17_REG 0x410
#define PINCTRL_BANK2_OUTPUT_REG 0x720
#define PINCTRL_BANK4_OUTPUT_REG 0x740
#define PINCTRL_BANK2_OUTPUT_ENABLE_REG 0xB20
#define PINCTRL_BANK4_OUTPUT_ENABLE_REG 0xB40
#define PINCTRL_BANK4_INPUT_REG 0x940
#define REG_SET 0x4
#define REG_CLR 0x8
void keyread(void *mapped_addr, char *keys) {
unsigned int in;
struct timespec wait = {0, 100000};
// Bank2 Pin16~21
for (int i = 0; i < 7; i++) {
*(volatile unsigned int *)(mapped_addr + PINCTRL_BANK2_OUTPUT_REG + REG_SET) = 0x10000 << i;
nanosleep(&wait, NULL);
in = *(volatile unsigned int *)(mapped_addr + PINCTRL_BANK4_INPUT_REG);
in = ~((in ^ (in >> 1)) & 0x1f ^ (in >> 1)) & 0x7f;
*(volatile unsigned int *)(mapped_addr + PINCTRL_BANK2_OUTPUT_REG + REG_CLR) = 0x10000 << i;
nanosleep(&wait, NULL);
keys[i] = (char)in;
}
// Bank4 Pin8
*(volatile unsigned int *)(mapped_addr + PINCTRL_BANK4_OUTPUT_REG + REG_SET) = 0x100;
nanosleep(&wait, NULL);
in = *(volatile unsigned int *)(mapped_addr + PINCTRL_BANK4_INPUT_REG);
in = ~((in ^ (in >> 1)) & 0x1f ^ (in >> 1)) & 0x7f;
*(volatile unsigned int *)(mapped_addr + PINCTRL_BANK4_OUTPUT_REG + REG_CLR) = 0x100;
nanosleep(&wait, NULL);
keys[6] = (char)in;
}
int main() {
/* init */
int fd = open("/dev/mem", O_RDWR | O_SYNC);
if (fd < 0) {
printf("failed to open /dev/mem");
return -1;
}
void *mapped_addr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, fd, PINCTRL_REG_BASE);
if (mapped_addr == MAP_FAILED) {
printf("failed to mapping addr");
close(fd);
return -1;
}
/* GPIO setup */
*(volatile unsigned int *)(mapped_addr + PINCTRL_DRIVE10_REG + REG_SET) = 0x00444444;
*(volatile unsigned int *)(mapped_addr + PINCTRL_DRIVE17_REG + REG_SET) = 0x44444444;
*(volatile unsigned int *)(mapped_addr + PINCTRL_BANK2_PULLUP_REG + REG_SET) = 0x003F03FF;
*(volatile unsigned int *)(mapped_addr + PINCTRL_BANK2_OUTPUT_REG + REG_SET) = 0x00000000;
*(volatile unsigned int *)(mapped_addr + PINCTRL_BANK4_OUTPUT_REG + REG_SET) = 0x00000000;
*(volatile unsigned int *)(mapped_addr + PINCTRL_BANK2_OUTPUT_ENABLE_REG + REG_SET) =
0x0F3FF5FF;
*(volatile unsigned int *)(mapped_addr + PINCTRL_BANK4_OUTPUT_ENABLE_REG + REG_SET) =
0x0001FF20;
/* read */
char keys[7], oldkeys[7] = {0};
while (1) {
keyread(mapped_addr, keys);
if (memcmp(keys, oldkeys, sizeof(keys))) {
memcpy(oldkeys, keys, sizeof(keys));
continue;
}
unsigned char temp = 0;
for (int i = 0; i < 7; i++) {
temp |= keys[i];
}
if (temp == 0)
continue;
// key decode
if (temp & 0x1)
for (int i = 0; i < 7; i++)
if ((keys[i] & 0x1) == 0) {
if (i == 0)
printf("英和和英 ");
if (i == 1)
printf("調べる ");
if (i == 2)
printf("国語漢字 ");
if (i == 3)
printf("My辞書 ");
if (i == 4)
printf("履歴/しおり ");
if (i == 5)
printf("マーカーテスト ");
if (i == 6)
printf("HOME ");
}
if (temp & 0x2)
for (int i = 0; i < 7; i++)
if ((keys[i] & 0x2) == 0) {
if (i == 0)
printf("Q ");
if (i == 1)
printf("W ");
if (i == 2)
printf("E ");
if (i == 3)
printf("T ");
if (i == 4)
printf("Y ");
if (i == 5)
printf("U ");
if (i == 6)
printf("I ");
}
if (temp & 0x4)
for (int i = 0; i < 7; i++)
if ((keys[i] & 0x4) == 0) {
if (i == 0)
printf("A ");
if (i == 1)
printf("S ");
if (i == 2)
printf("D ");
if (i == 3)
printf("G ");
if (i == 4)
printf("H ");
if (i == 5)
printf("O ");
if (i == 6)
printf("P ");
}
if (temp & 0x8)
for (int i = 0; i < 7; i++)
if ((keys[i] & 0x8) == 0) {
if (i == 0)
printf("Z ");
if (i == 1)
printf("X ");
if (i == 2)
printf("C ");
if (i == 3)
printf("B ");
if (i == 4)
printf("J ");
if (i == 5)
printf("K ");
if (i == 6)
printf("L ");
}
if (temp & 0x10)
for (int i = 0; i < 7; i++)
if ((keys[i] & 0x10) == 0) {
if (i == 0)
printf("Shift ");
if (i == 1)
printf("R ");
if (i == 2)
printf("F ");
if (i == 3)
printf("記号 ");
if (i == 4)
printf("N ");
if (i == 5)
printf("M ");
if (i == 6)
printf("- ");
}
if (temp & 0x20)
for (int i = 0; i < 7; i++)
if ((keys[i] & 0x20) == 0) {
if (i == 0)
printf("V ");
if (i == 1)
printf("PageUp ");
if (i == 2)
printf("Space ");
if (i == 3)
printf("Left ");
if (i == 4)
printf("Up ");
if (i == 5)
printf("Down ");
if (i == 6)
printf("Right ");
}
if (temp & 0x40)
for (int i = 0; i < 7; i++)
if ((keys[i] & 0x40) == 0) {
if (i == 0)
printf("文字切替 ");
if (i == 1)
printf("PageDown ");
if (i == 2)
printf("ツール ");
if (i == 3)
printf("Esc ");
if (i == 4)
printf("Enter ");
if (i == 5)
printf("? ");
if (i == 6)
printf("BackSpace ");
}
printf("\nkeys = 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n", keys[0], keys[1],
keys[2], keys[3], keys[4], keys[5], keys[6]);
memcpy(oldkeys, keys, sizeof(keys));
}
/* deinit */
munmap(mapped_addr, 4096);
close(fd);
return 0;
}