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annotate rvinterf/asyncshell/sendsp.c @ 1017:759b3cbf46aa

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doc/TCH-special-feature: document written
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Mon, 21 Mar 2016 06:05:57 +0000
parents bd873572ef2c
children
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1 /*
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2 * Functions for sending GPF system primitives to the target
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3 */
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4
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5 #include <sys/types.h>
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6 #include <stdio.h>
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7 #include <ctype.h>
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8 #include <string.h>
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9 #include <strings.h>
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10 #include <stdlib.h>
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11 #include "pktmux.h"
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12 #include "limits.h"
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13
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14 send_gpf_sysprim(stackdest, primstr)
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15 char *stackdest, *primstr;
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16 {
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17 unsigned intlen;
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18 u_char sendpkt[MAX_PKT_TO_TARGET+1];
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19 unsigned pktlen;
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20
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21 if (strlen(stackdest) > 4) {
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22 printf(
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23 "error: stack destination arg may not exceed 4 characters\n");
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24 return(1);
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25 }
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26 intlen = 12 + strlen(primstr);
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27 pktlen = intlen + 4;
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28 if (pktlen > MAX_PKT_TO_TARGET) {
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29 printf("error: max pkt to target limit exceeded\n");
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30 return(1);
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31 }
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32 /* fill out the packet */
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33 sendpkt[0] = RVT_L23_HEADER;
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34 sendpkt[1] = 0xB7; /* system prim */
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35 sendpkt[2] = intlen;
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36 sendpkt[3] = intlen >> 8;
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37 /* send zeros for the timestamp */
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38 sendpkt[4] = 0;
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39 sendpkt[5] = 0;
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40 sendpkt[6] = 0;
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41 sendpkt[7] = 0;
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42 /* as far as TI's sw is concerned, we are PCO */
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43 sendpkt[8] = 'P';
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44 sendpkt[9] = 'C';
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45 sendpkt[10] = 'O';
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46 sendpkt[11] = ' ';
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47 sprintf(sendpkt + 12, "%-4s%s", stackdest, primstr);
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48 /* send it! */
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49 send_pkt_to_target(sendpkt, pktlen);
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50 return(0);
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51 }
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52
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53 void
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54 cmd_sp_interactive(args)
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55 char *args;
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56 {
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57 char *cp, *np;
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58
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59 for (cp = args; isspace(*cp); cp++)
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60 ;
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61 if (!*cp) {
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62 err: printf("error: two arguments required\n");
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63 return;
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64 }
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65 for (np = cp; *cp && !isspace(*cp); cp++)
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66 ;
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67 if (!*cp)
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68 goto err;
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69 *cp++ = '\0';
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70 while (isspace(*cp))
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71 cp++;
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72 if (!*cp)
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73 goto err;
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74 gpf_rx_control(1);
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75 send_gpf_sysprim(np, cp);
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76 }
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77
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78 cmd_sp_oneshot(argc, argv)
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79 char **argv;
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80 {
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81 return send_gpf_sysprim(argv[1], argv[2]);
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82 }