FreeCalypso > hg > freecalypso-tools

annotate target-utils/loadagent/bindump.c @ 752:c79aaed75bd8

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compile-fc-batt: allow possible third field in source lines Battery tables maintained in the fc-battery-conf repository will now have a third field added, defining thresholds for the battery bars icon, and there will be a new utility to compile them into the new /etc/batterytab2 file read by the FC Tourmaline version of our FCHG driver. For backward compatibility with the original Magnetite version of FCHG, compile-fc-batt remains the tool for compiling the original /etc/batterytab file format, and it needs to ignore the newly added third field in battery table sources.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 05 Nov 2020 20:37:55 +0000
parents 963d15a808eb
children
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6562364b2033 loadagent: BINDUMP command implemented
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1 /*
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2 * Here we are going to implement a new memory dump command for use by
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3 * fc-loadtool, sending the dump stream to the host in binary instead of hex
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4 * S-records.
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5 *
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6 * We could send the entire stream continuously without any structure or
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7 * breaks, but if we did that, fc-loadtool would not be able to detect a slip
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8 * (byte loss error) in the serial stream until the end of the dump,
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9 * potentially minutes long. For this reason we are taking a different
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10 * approach: we are going to send the dump stream in blocks of 8192 bytes,
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11 * with each block preceded by an 8-byte binary header. Loadtool will know
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12 * and expect the same block structure, and seeing our block headers in the
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13 * right positions in the stream will provide assurance of synchronization.
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14 */
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15
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16 #include <sys/types.h>
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17 #include "types.h"
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18
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19 void
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20 cmd_memdump_binary(argbulk)
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21 char *argbulk;
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22 {
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23 char *argv[3];
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24 u_long start, length;
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25 u_long addr, remlen;
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26 unsigned blklen, n;
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27
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28 if (parse_args(argbulk, 2, 2, argv, 0) < 0)
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29 return;
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30 if (parse_hexarg(argv[0], 8, &start) < 0) {
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31 printf("ERROR: arg1 must be a valid 32-bit hex address\n");
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32 return;
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33 }
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34 if (parse_hexarg(argv[1], 8, &length) < 0) {
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35 printf("ERROR: arg2 must be a valid 32-bit hex value (length)\n");
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36 return;
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37 }
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38 addr = start;
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39 for (remlen = length; remlen; remlen -= blklen) {
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40 blklen = 8192;
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41 if (remlen < blklen)
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42 blklen = remlen;
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43 serial_out(0x55);
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44 serial_out(0xAA);
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45 serial_out(addr >> 24);
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46 serial_out(addr >> 16);
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47 serial_out(addr >> 8);
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48 serial_out(addr);
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49 serial_out(blklen >> 8);
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50 serial_out(blklen);
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51 for (n = blklen; n; n--) {
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52 serial_out(*(volatile u8 *)addr);
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53 addr++;
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54 }
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55 }
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56 }