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
|
/*
try - try out the DoubleTalk device driver
*/
#include <stdlib.h>
#include <ctype.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <sys/time.h>
#include "dtlk.h"
#define GREET "hello, world"
#define FIRSTLINE "now is the time for all good men\0012I\r"
#define SECONDLINE "to come to the aid of their country\0015I\r"
void print_string(void *v, int n)
{
char *s = (char *)v;
printf("\"");
while (n-- > 0)
{
if (isprint(*s))
printf("%c", *s);
else
printf("\\%03o", *s);
s++;
}
printf("\"");
}
int main()
{
int fd, retval;
struct dtlk_settings stat;
char buf[32];
struct timeval before, after;
double interval;
struct timeval tv={0,0};
fd_set rfds, wfds, xfds;
setbuf(stdout, NULL);
printf("\n DoubleTalk PC Linux device driver demo\n");
fd = open("/dev/dtlk", O_RDWR);
if (fd == -1)
{
perror("try");
exit(1);
}
printf("\nStart speech, interrupt after 1 sec by interrogating...\n");
printf("write(fd, ");
print_string(GREET, strlen(GREET) + 1);
printf(", %d)", strlen(GREET) + 1);
gettimeofday(&before, NULL);
retval = write(fd, GREET, strlen(GREET) + 1);
gettimeofday(&after, NULL);
interval = after.tv_sec - before.tv_sec +
(after.tv_usec - before.tv_usec)*.000001;
printf(" returns %d after %7.6f sec\n", retval, interval);
sleep(1);
printf("ioctl(fd, DTLK_INTERROGATE)");
gettimeofday(&before, NULL);
retval = ioctl(fd, DTLK_INTERROGATE, (long)&stat);
gettimeofday(&after, NULL);
interval = after.tv_sec - before.tv_sec +
(after.tv_usec - before.tv_usec)*.000001;
printf(" returns %d after %7.6f sec\n", retval, interval);
if (retval < 0) perror("try");
printf("results: ");
print_string(&stat, sizeof(stat));
printf("\n");
printf("interpretation: ");
#define SHOW(v) printf("%s=%d, ",#v, (int)stat.##v)
SHOW(serial_number);
printf("rom_version=%s, ", stat.rom_version);
SHOW(mode);
SHOW(punc_level);
SHOW(formant_freq);
SHOW(pitch);
SHOW(speed);
SHOW(volume);
SHOW(tone);
SHOW(expression);
SHOW(ext_dict_loaded);
SHOW(ext_dict_status);
SHOW(free_ram);
SHOW(articulation);
SHOW(reverb);
printf("eob=%d\n", stat.eob);
printf("\nWait up to 1 sec for DoubleTalk to become readable"
" (should time out)...\n");
FD_ZERO(&rfds);
FD_ZERO(&wfds);
FD_ZERO(&xfds);
FD_SET(fd, &rfds);
tv.tv_usec = 0;
tv.tv_sec = 1;
printf("select(%d)", tv.tv_sec);
gettimeofday(&before, NULL);
retval = select(fd+1, &rfds, &wfds, &xfds, &tv);
gettimeofday(&after, NULL);
interval = after.tv_sec - before.tv_sec +
(after.tv_usec - before.tv_usec)*.000001;
printf(" returns %d after %7.6f sec\n", retval, interval);
printf("\nStart speech, set index `2', wait 3 sec or until readable,"
" then read index...\n");
printf("write(fd, ");
print_string(FIRSTLINE, strlen(FIRSTLINE));
printf(", %d)", strlen(FIRSTLINE));
retval = write(fd, FIRSTLINE, strlen(FIRSTLINE));
printf(" returns %d\n", retval);
FD_ZERO(&rfds);
FD_ZERO(&wfds);
FD_ZERO(&xfds);
FD_SET(fd, &rfds);
tv.tv_usec = 0;
tv.tv_sec = 3;
printf("select(%d)", tv.tv_sec);
gettimeofday(&before, NULL);
retval = select(fd+1, &rfds, &wfds, &xfds, &tv);
gettimeofday(&after, NULL);
interval = after.tv_sec - before.tv_sec +
(after.tv_usec - before.tv_usec)*.000001;
printf(" returns %d after %7.6f sec\n", retval, interval);
printf("read(fd, buf, 1)");
gettimeofday(&before, NULL);
retval = read (fd, buf, 1);
gettimeofday(&after, NULL);
interval = after.tv_sec - before.tv_sec +
(after.tv_usec - before.tv_usec)*.000001;
printf(" returns %d after %7.6f sec\n", retval, interval);
printf("data read: "); print_string(buf, retval); printf("\n");
printf("\nStart speech, set index `5', "
"then immediately read index...\n");
printf("write(fd, ");
print_string(SECONDLINE, strlen(SECONDLINE) + 1);
printf(", %d)", strlen(SECONDLINE) + 1);
retval = write(fd, SECONDLINE, strlen(SECONDLINE) + 1);
printf(" returns %d\n", retval);
printf("read(fd, buf, 1)");
gettimeofday(&before, NULL);
retval = read (fd, buf, 1);
gettimeofday(&after, NULL);
interval = after.tv_sec - before.tv_sec +
(after.tv_usec - before.tv_usec)*.000001;
printf(" returns %d after %7.6f sec\n", retval, interval);
printf("data read: "); print_string(buf, retval); printf("\n");
return 0;
}
|
