FreeCalypso > hg > freecalypso-tools

annotate loadtools/tpinterfb.c @ 995:74024eb17e04

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fc-loadtool help: improve language regarding 16 MiB flash chips In FC project history, 16 MiB flash originally meant Pirelli DP-L10. Then we got FCDEV3B with the same flash (our own design), but now we are discovering more Calypso devices that used such large flash, both late Calypso era (Sony Ericsson K2x0) as well as much earlier ones (FIC FLUID devices.txt file with 2004 dates, Leonardo+ rev 5). Hence we need to migrate to more generic or neutral language in associated documentation, without giving elevated status to specific examples that drove our early project history.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 03 Dec 2023 21:11:12 +0000
parents 8d7dcfd9df53
children
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1 /*
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2 * This module contains functions for binary (as opposed to our usual ASCII)
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3 * interfacing to loadagent.
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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/time.h>
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8 #include <sys/errno.h>
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9 #include <stdio.h>
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10 #include <string.h>
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11 #include <strings.h>
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12 #include <stdlib.h>
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13 #include <unistd.h>
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14
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15 extern int errno;
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16
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17 extern int target_fd;
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18
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19 collect_binblock_from_target(buf, expect_len, timeout)
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20 u_char *buf;
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21 unsigned expect_len;
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22 {
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23 fd_set fds;
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24 struct timeval tv;
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25 unsigned rcvd;
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26 int cc;
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27
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28 for (rcvd = 0; rcvd < expect_len; ) {
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29 FD_ZERO(&fds);
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30 FD_SET(target_fd, &fds);
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31 tv.tv_sec = timeout;
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32 tv.tv_usec = 0;
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33 cc = select(target_fd+1, &fds, NULL, NULL, &tv);
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34 if (cc < 0) {
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35 if (errno == EINTR)
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36 continue;
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37 perror("select");
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38 return(-1);
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39 }
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40 if (cc < 1) {
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41 fprintf(stderr,
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42 "error: timeout waiting for binary block\n");
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43 return(-1);
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44 }
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45 cc = read(target_fd, buf + rcvd, expect_len - rcvd);
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46 if (cc <= 0) {
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47 perror("read after successful select");
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48 return(-1);
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49 }
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50 rcvd += cc;
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51 }
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52 return(0);
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53 }