blob: 1a5b14c88ca67da37ce9e9e97167141e88487e09 (
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
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
|
/**
* N: I/O
*/
#include "nio.h"
#include "sio.h"
#include <atari.h>
#include <stddef.h>
#define TIMEOUT 0x1f /* approx 30 seconds */
unsigned char nunit(char* devicespec)
{
unsigned char unit=1;
// Set unit to 1 unless explicitly specified.
if (devicespec[1]==':')
unit=1;
else if (devicespec[2]==':')
unit=devicespec[1]-0x30; // convert from alpha to integer.
else
unit=1;
return unit;
}
unsigned char nopen(char* devicespec, unsigned char trans)
{
unsigned char unit=nunit(devicespec);
OS.dcb.ddevic = DFUJI; // Fuji Device Identifier
OS.dcb.dunit = unit; // Unit number integer 1 through 4
OS.dcb.dcomnd = 'O'; // Open
OS.dcb.dstats = DWRITE; // sending to to SIO device
OS.dcb.dbuf = devicespec; // eg: N:TCP//
OS.dcb.dtimlo = TIMEOUT; // approximately 30 second timeout
OS.dcb.dbyt = 256; // max size of our device spec
OS.dcb.daux1 = OUPDATE; // Read and write
OS.dcb.daux2 = trans; // CR/LF translation
siov();
if (OS.dcb.dstats!=SUCCESS)
{
// something went wrong
// do we need to return extended status?
if (OS.dcb.dstats==DERROR)
{
nstatus(devicespec);
return OS.dvstat[DVSTAT_EXTENDED_ERROR]; // return extended error.
}
}
return OS.dcb.dstats; // Return SIO error or success
}
unsigned char nclose(char* devicespec)
{
unsigned char unit=nunit(devicespec);
OS.dcb.ddevic = DFUJI;
OS.dcb.dunit = unit;
OS.dcb.dcomnd = 'C'; // Close
OS.dcb.dstats = 0x00;
OS.dcb.dbuf = NULL;
OS.dcb.dtimlo = TIMEOUT;
OS.dcb.dbyt = 0;
OS.dcb.daux = 0;
siov();
if (OS.dcb.dstats!=SUCCESS)
{
// something went wrong
// do we need to return extended status?
if (OS.dcb.dstats==DERROR)
{
nstatus(devicespec);
return OS.dvstat[DVSTAT_EXTENDED_ERROR]; // return extended error.
}
}
return OS.dcb.dstats; // Return SIO error or success.
}
unsigned char nstatus(char* devicespec)
{
unsigned char unit=nunit(devicespec);
OS.dcb.ddevic = DFUJI;
OS.dcb.dunit = unit;
OS.dcb.dcomnd = 'S'; // status
OS.dcb.dstats = DREAD;
OS.dcb.dbuf = OS.dvstat;
OS.dcb.dtimlo = TIMEOUT;
OS.dcb.dbyt = sizeof(OS.dvstat);
OS.dcb.daux = 0;
siov();
return OS.dvstat[DVSTAT_EXTENDED_ERROR]; // return extended status
}
unsigned char nread(char* devicespec, unsigned char* buf, unsigned short len)
{
unsigned char unit=nunit(devicespec);
OS.dcb.ddevic = DFUJI;
OS.dcb.dunit = unit;
OS.dcb.dcomnd = 'R'; // read
OS.dcb.dstats = DREAD;
OS.dcb.dbuf = buf;
OS.dcb.dtimlo = TIMEOUT;
OS.dcb.dbyt = OS.dcb.daux = len; // Set the buffer size AND daux with length
siov();
if (OS.dcb.dstats!=SUCCESS)
{
// something went wrong
// do we need to return extended status?
if (OS.dcb.dstats==DERROR)
{
nstatus(devicespec);
return OS.dvstat[DVSTAT_EXTENDED_ERROR]; // return extended error.
}
}
return OS.dcb.dstats; // Return SIO error or success.
}
unsigned char nwrite(char* devicespec, unsigned char* buf, unsigned short len)
{
unsigned char unit=nunit(devicespec);
OS.dcb.ddevic = DFUJI;
OS.dcb.dunit = unit;
OS.dcb.dcomnd = 'W'; // write
OS.dcb.dstats = DWRITE;
OS.dcb.dbuf = buf;
OS.dcb.dtimlo = TIMEOUT;
OS.dcb.dbyt = OS.dcb.daux = len;
siov();
if (OS.dcb.dstats!=SUCCESS)
{
// something went wrong
// do we need to return extended status?
if (OS.dcb.dstats==DERROR)
{
nstatus(devicespec);
return OS.dvstat[DVSTAT_EXTENDED_ERROR]; // return extended error.
}
}
return OS.dcb.dstats; // Return SIO error or success.
}
unsigned char nlogin(char* devicespec, char *login, char *password)
{
unsigned char unit=nunit(devicespec);
OS.dcb.ddevic=0x71;
OS.dcb.dunit=unit;
OS.dcb.dcomnd=0xFD;
OS.dcb.dstats=0x80;
OS.dcb.dbuf=login;
OS.dcb.dtimlo=0x1f;
OS.dcb.dbyt=256;
OS.dcb.daux=0;
siov();
if (OS.dcb.dstats!=1)
{
nstatus(devicespec);
return OS.dvstat[DVSTAT_EXTENDED_ERROR]; // return ext err
}
OS.dcb.dcomnd=0xFE;
OS.dcb.dstats=0x80;
OS.dcb.dbuf=password;
siov();
if (OS.dcb.dstats!=1)
{
nstatus(devicespec);
return OS.dvstat[DVSTAT_EXTENDED_ERROR]; // return ext err
}
return OS.dcb.dstats;
}
|
