FreeCalypso > hg > freecalypso-sw

annotate rvinterf/libasync/launchrvif.c @ 923:10b4bed10192

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gsm-fw/L1: fix for the DSP patch corruption bug The L1 code we got from the LoCosto fw contains a feature for DSP CPU load measurement. This feature is a LoCosto-ism, i.e., not applicable to earlier DBB chips (Calypso) with their respective earlier DSP ROMs. Most of the code dealing with that feature is conditionalized as #if (DSP >= 38), but one spot was missed, and the MCU code was writing into an API word dealing with this feature. In TCS211 this DSP API word happens to be used by the DSP code patch, hence that write was corrupting the patched DSP code.
author Mychaela Falconia <falcon@ivan.Harhan.ORG>
date Mon, 19 Oct 2015 17:13:56 +0000
parents 40b8557b9d04
children
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1 /*
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2 * This module implements the optional "behind the scenes" invokation
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3 * of rvinterf from fc-tmsh.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <sys/socket.h>
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8 #include <stdio.h>
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9 #include <stdlib.h>
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10 #include <unistd.h>
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11
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12 static char rvinterf_pathname[] = "/usr/local/bin/rvinterf";
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13
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14 extern int sock;
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15
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16 char *rvinterf_Bopt, *rvinterf_lopt, *rvinterf_wopt;
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17
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18 launch_rvinterf(ttyport)
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19 char *ttyport;
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20 {
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21 int sp[2], rc;
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22 char *rvif_argv[11], Sarg[16], **ap;
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23
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24 rc = socketpair(AF_UNIX, SOCK_STREAM, 0, sp);
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25 if (rc < 0) {
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26 perror("socketpair");
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27 exit(1);
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28 }
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29 sock = sp[0];
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30 sprintf(Sarg, "-S%d", sp[1]);
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31 ap = rvif_argv;
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32 *ap++ = "rvinterf";
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33 *ap++ = Sarg;
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34 *ap++ = "-n";
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35 if (rvinterf_Bopt) {
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36 *ap++ = "-B";
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37 *ap++ = rvinterf_Bopt;
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38 }
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39 if (rvinterf_lopt) {
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40 *ap++ = "-l";
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41 *ap++ = rvinterf_lopt;
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42 }
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43 if (rvinterf_wopt) {
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44 *ap++ = "-w";
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45 *ap++ = rvinterf_wopt;
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46 }
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47 *ap++ = ttyport;
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48 *ap = 0;
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49 rc = vfork();
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50 if (rc < 0) {
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51 perror("vfork for launching rvinterf");
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52 exit(1);
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53 }
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54 if (!rc) {
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55 /* we are in the child - do the exec */
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56 close(sp[0]);
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57 execv(rvinterf_pathname, rvif_argv);
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58 perror(rvinterf_pathname);
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59 _exit(1);
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60 }
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61 close(sp[1]);
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62 return 0;
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63 }