Commit | Line | Data |
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0819c7c7 RC |
1 | #ifndef lint |
2 | static char sccsid[] = "@(#)vmacs.c 4.1 (Berkeley) %G%"; | |
3 | #endif | |
4 | ||
5 | #include "../condevs.h" | |
6 | #ifdef VMACS | |
7 | /* | |
8 | * Racal-Vadic 'RV811' MACS system with 831 adaptor. | |
9 | * | |
10 | * A typical 300 baud L-devices entry is | |
11 | * ACU /dev/tty10 /dev/tty11,48,1200 300 vmacs | |
12 | * where tty10 is the communication line (D_Line), | |
13 | * tty11 is the dialer line (D_calldev), | |
14 | * the '4' is the dialer address + modem type (viz. dialer 0, Bell 103), | |
15 | * and the '8' is the communication port | |
16 | * (Note: Based on RVMACS version for 820 dialer. This version | |
17 | * developed by Doug Kingston @ BRL, 13 December 83.) | |
18 | */ | |
19 | ||
20 | #define SOH 01 /* Abort */ | |
21 | #define STX 02 /* Access Adaptor */ | |
22 | #define ETX 03 /* Transfer to Dialer */ | |
23 | #define SI 017 /* Buffer Empty (end of phone number) */ | |
24 | ||
25 | vmacsopn(ph, flds, dev) | |
26 | char *ph, *flds[]; | |
27 | struct Devices *dev; | |
28 | { | |
29 | register int va, i, child; | |
30 | register char *p; | |
31 | char c, acu[20], com[20]; | |
32 | char modem, dialer; | |
33 | int dialspeed; | |
34 | char c_STX = STX; | |
35 | char c_ETX = ETX; | |
36 | char c_SI = SI; | |
37 | char c_SOH = SOH; | |
38 | ||
39 | /* create child to open comm line */ | |
40 | child = -1; | |
41 | sprintf(com, "/dev/%s", dev->D_line); | |
42 | if ((child = fork()) == 0) { | |
43 | signal(SIGINT, SIG_DFL); | |
44 | open(com, 0); | |
45 | DEBUG(5, "%s Opened.", com); | |
46 | sleep(5); | |
47 | exit(1); | |
48 | } | |
49 | ||
50 | if ((p = index(dev->D_calldev, ',')) == NULL) { | |
51 | DEBUG(2, "No dialer/modem specification\n", 0); | |
52 | goto failret; | |
53 | } | |
54 | *p++ = '\0'; | |
55 | if (*p < '0' || *p > '7') { | |
56 | logent(p, "Bad dialer address/modem type"); | |
57 | goto failret; | |
58 | } | |
59 | dialer = *p++; | |
60 | if (*p < '0' || *p > '>') { | |
61 | logent(p, "Bad modem address"); | |
62 | goto failret; | |
63 | } | |
64 | modem = *p++; | |
65 | if (*p++ == ',') | |
66 | dialspeed = atoi (p); | |
67 | else | |
68 | dialspeed = dev->D_speed; | |
69 | if (setjmp(Sjbuf)) { | |
70 | logent("vmacsopn", "TIMEOUT"); | |
71 | i = CF_DIAL; | |
72 | goto ret; | |
73 | } | |
74 | DEBUG(4, "STARTING CALL\n", 0); | |
75 | sprintf(acu, "/dev/%s", dev->D_calldev); | |
76 | getnextfd(); | |
77 | signal(SIGALRM, alarmtr); | |
78 | alarm(45); | |
79 | if ((va = open(acu, 2)) < 0) { | |
80 | logent(acu, "CAN'T OPEN"); | |
81 | i = CF_NODEV; | |
82 | goto ret; | |
83 | } | |
84 | DEBUG(5, "ACU %s opened.\n", acu); | |
85 | fixline(va, dialspeed); | |
86 | ||
87 | write(va, &c_SOH, 1); /* abort, reset the dialer */ | |
88 | do { | |
89 | if (read (va, &c, 1) != 1) { | |
90 | logent ("MACS initialization", _FAILED); | |
91 | goto failret; | |
92 | } | |
93 | } while ((c&0177) != 'B'); | |
94 | DEBUG(5, "ACU initialized\n", 0); | |
95 | ||
96 | write(va, &c_STX, 1); /* start text, access adaptor */ | |
97 | write(va, &dialer, 1); /* send dialer address digit */ | |
98 | write(va, &modem, 1); /* send modem address digit */ | |
99 | write(va, ph, strlen(ph)); /* Send Phone Number */ | |
100 | write(va, &c_SI, 1); /* send buffer empty */ | |
101 | write(va, &c_ETX, 1); /* end of text, initiate call */ | |
102 | ||
103 | if (read(va, &c, 1) != 1) { | |
104 | logent("ACU READ", _FAILED); | |
105 | goto failret; | |
106 | } | |
107 | switch(c) { | |
108 | case 'A': | |
109 | /* Fine! */ | |
110 | DEBUG(5, "Call connected\n", 0); | |
111 | break; | |
112 | case 'B': | |
113 | DEBUG(2, "CALL ABORTED\n", 0); | |
114 | goto failret; | |
115 | case 'D': | |
116 | DEBUG(2, "Dialer format error\n", 0); | |
117 | goto failret; | |
118 | case 'E': | |
119 | DEBUG(2, "Dialer parity error\n", 0); | |
120 | goto failret; | |
121 | case 'F': | |
122 | DEBUG(2, "Phone number too long\n", 0); | |
123 | goto failret; | |
124 | case 'G': | |
125 | DEBUG(2, "Busy signal\n", 0); | |
126 | goto failret; | |
127 | default: | |
128 | DEBUG(2, "Unknown MACS return code '%c'\n", i); | |
129 | goto failret; | |
130 | } | |
131 | /* | |
132 | * open line - will return on carrier | |
133 | */ | |
134 | if ((i = open(com, 2)) < 0) { | |
135 | if (errno == EIO) | |
136 | logent("carrier", "LOST"); | |
137 | else | |
138 | logent("dialup open", _FAILED); | |
139 | goto failret; | |
140 | } | |
141 | fixline(i, dev->D_speed); | |
142 | goto ret; | |
143 | failret: | |
144 | i = CF_DIAL; | |
145 | ret: | |
146 | alarm(0); | |
147 | if (child > 1) | |
148 | kill(child, SIGKILL); | |
149 | close(va); | |
150 | return i; | |
151 | } | |
152 | ||
153 | vmacscls(fd) | |
154 | register int fd; | |
155 | { | |
156 | char c_SOH = SOH; | |
157 | ||
158 | DEBUG(2, "MACS close %d\n", fd); | |
159 | write(fd, &c_SOH, 1); | |
160 | /* ioctl(fd, TIOCCDTR, NULL);*/ | |
161 | close(fd); | |
162 | } | |
163 | #endif VMACS |