FreeCalypso > hg > freecalypso-tools

annotate rvinterf/old/g23sh/sendsp.c @ 260:13e0fe68a358

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CHANGES: added pointer to doc/High-speed-serial in the serial change blurb
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 28 Sep 2017 08:02:03 +0000
parents e7502631a0f9
children
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Mychaela Falconia <falcon@freecalypso.org>
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1 /*
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2 * g23sh system primitive sending command
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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 <string.h>
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8 #include <strings.h>
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9 #include <stdlib.h>
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10 #include "pktmux.h"
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11 #include "limits.h"
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12
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13 void
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14 cmd_sendsp(argc, argv)
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15 char **argv;
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16 {
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17 char *stackdest, *primarg;
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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 stackdest = argv[1];
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23 primarg = argv[2];
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24 if (strlen(stackdest) > 4) {
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25 printf(
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26 "error: stack destination arg may not exceed 4 characters\n");
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27 return;
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28 }
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29 intlen = 12 + strlen(primarg);
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30 pktlen = intlen + 4;
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31 if (pktlen > MAX_PKT_TO_TARGET) {
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32 printf("error: max pkt to target limit exceeded\n");
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33 return;
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34 }
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35 /* fill out the packet */
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36 sendpkt[0] = RVT_L23_HEADER;
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37 sendpkt[1] = 0xB7; /* system prim */
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38 sendpkt[2] = intlen;
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39 sendpkt[3] = intlen >> 8;
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40 /* send zeros for the timestamp */
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41 sendpkt[4] = 0;
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42 sendpkt[5] = 0;
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43 sendpkt[6] = 0;
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44 sendpkt[7] = 0;
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45 /* as far as TI's sw is concerned, we are PCO */
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46 sendpkt[8] = 'P';
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47 sendpkt[9] = 'C';
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48 sendpkt[10] = 'O';
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49 sendpkt[11] = ' ';
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50 sprintf(sendpkt + 12, "%-4s%s", stackdest, primarg);
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51 /* send it! */
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52 send_pkt_to_target(sendpkt, pktlen);
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53 }