FreeCalypso > hg > freecalypso-tools
annotate libpwon/duart28c.c @ 928:65953c172f24
rvinterf/lowlevel: new hex dump format
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Tue, 23 May 2023 05:23:19 +0000 |
parents | 7d1df6d831e4 |
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rev | line source |
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libpwon: added -Pdtr and -Prts support for DUART28C
Mychaela Falconia <falcon@freecalypso.org>
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1 #include <sys/types.h> |
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2 #include <sys/ioctl.h> |
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3 #include <stdio.h> |
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4 #include <stdlib.h> |
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5 #include <string.h> |
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6 #include <strings.h> |
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7 #include <unistd.h> |
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8 |
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9 extern int target_fd; |
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10 |
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11 int bootctrl_duart28c_mode; |
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12 static int mctl_arg; |
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13 |
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14 bootctrl_check_duart28c(bc_name) |
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15 char *bc_name; |
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16 { |
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17 if (!strcmp(bc_name, "dtr")) { |
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18 bootctrl_duart28c_mode = 1; |
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19 mctl_arg = TIOCM_DTR; |
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20 return 1; |
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21 } |
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22 if (!strcmp(bc_name, "rts")) { |
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23 bootctrl_duart28c_mode = 1; |
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24 mctl_arg = TIOCM_RTS; |
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25 return 1; |
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26 } |
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27 return 0; |
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28 } |
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29 |
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30 void |
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31 fork_duart28c_pulse() |
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32 { |
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33 int i; |
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34 |
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35 i = fork(); |
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36 if (i < 0) { |
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37 perror("fork"); |
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38 exit(1); |
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39 } |
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40 if (i) |
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41 return; |
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42 ioctl(target_fd, TIOCMBIS, &mctl_arg); |
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43 usleep(50000); |
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44 ioctl(target_fd, TIOCMBIC, &mctl_arg); |
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45 exit(0); |
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46 } |