FreeCalypso > hg > freecalypso-tools
comparison libpwon/duart28c.c @ 736:7d1df6d831e4
libpwon: added -Pdtr and -Prts support for DUART28C
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Wed, 16 Sep 2020 03:40:51 +0000 |
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735:5b8287c655cf | 736:7d1df6d831e4 |
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1 #include <sys/types.h> | |
2 #include <sys/ioctl.h> | |
3 #include <stdio.h> | |
4 #include <stdlib.h> | |
5 #include <string.h> | |
6 #include <strings.h> | |
7 #include <unistd.h> | |
8 | |
9 extern int target_fd; | |
10 | |
11 int bootctrl_duart28c_mode; | |
12 static int mctl_arg; | |
13 | |
14 bootctrl_check_duart28c(bc_name) | |
15 char *bc_name; | |
16 { | |
17 if (!strcmp(bc_name, "dtr")) { | |
18 bootctrl_duart28c_mode = 1; | |
19 mctl_arg = TIOCM_DTR; | |
20 return 1; | |
21 } | |
22 if (!strcmp(bc_name, "rts")) { | |
23 bootctrl_duart28c_mode = 1; | |
24 mctl_arg = TIOCM_RTS; | |
25 return 1; | |
26 } | |
27 return 0; | |
28 } | |
29 | |
30 void | |
31 fork_duart28c_pulse() | |
32 { | |
33 int i; | |
34 | |
35 i = fork(); | |
36 if (i < 0) { | |
37 perror("fork"); | |
38 exit(1); | |
39 } | |
40 if (i) | |
41 return; | |
42 ioctl(target_fd, TIOCMBIS, &mctl_arg); | |
43 usleep(50000); | |
44 ioctl(target_fd, TIOCMBIC, &mctl_arg); | |
45 exit(0); | |
46 } |