FreeCalypso > hg > freecalypso-tools

annotate rvinterf/asyncshell/sendsp.c @ 737:6d97866bad79

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first round of documentation for DUART28C boot control addition
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 16 Sep 2020 06:10:39 +0000
parents d43d82cbfb85
children
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Mychaela Falconia <falcon@freecalypso.org>
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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 #include "exitcodes.h"
0
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14
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15 send_gpf_sysprim(stackdest, primstr)
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16 char *stackdest, *primstr;
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17 {
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18 unsigned intlen;
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19 u_char sendpkt[MAX_PKT_TO_TARGET+1];
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20 unsigned pktlen;
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21
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22 if (strlen(stackdest) > 4) {
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23 printf(
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24 "error: stack destination arg may not exceed 4 characters\n");
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25 return(ERROR_USAGE);
0
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26 }
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27 intlen = 12 + strlen(primstr);
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28 pktlen = intlen + 4;
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29 if (pktlen > MAX_PKT_TO_TARGET) {
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30 printf("error: max pkt to target limit exceeded\n");
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31 return(ERROR_USAGE);
0
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32 }
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33 /* fill out the packet */
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34 sendpkt[0] = RVT_L23_HEADER;
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35 sendpkt[1] = 0xB7; /* system prim */
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36 sendpkt[2] = intlen;
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37 sendpkt[3] = intlen >> 8;
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38 /* send zeros for the timestamp */
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39 sendpkt[4] = 0;
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40 sendpkt[5] = 0;
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41 sendpkt[6] = 0;
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42 sendpkt[7] = 0;
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43 /* as far as TI's sw is concerned, we are PCO */
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44 sendpkt[8] = 'P';
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45 sendpkt[9] = 'C';
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46 sendpkt[10] = 'O';
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47 sendpkt[11] = ' ';
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48 sprintf(sendpkt + 12, "%-4s%s", stackdest, primstr);
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49 /* send it! */
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50 send_pkt_to_target(sendpkt, pktlen);
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51 return(0);
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52 }
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53
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54 void
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55 cmd_sp_interactive(args)
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56 char *args;
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57 {
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58 char *cp, *np;
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59
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60 for (cp = args; isspace(*cp); cp++)
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61 ;
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62 if (!*cp) {
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63 err: printf("error: two arguments required\n");
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64 return;
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65 }
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66 for (np = cp; *cp && !isspace(*cp); cp++)
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67 ;
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68 if (!*cp)
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69 goto err;
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70 *cp++ = '\0';
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71 while (isspace(*cp))
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72 cp++;
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73 if (!*cp)
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74 goto err;
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75 gpf_rx_control(1);
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76 send_gpf_sysprim(np, cp);
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77 }
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78
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79 cmd_sp_oneshot(argc, argv)
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80 char **argv;
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81 {
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82 return send_gpf_sysprim(argv[1], argv[2]);
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83 }