FreeCalypso > hg > freecalypso-tools

annotate target-utils/libcommon/hexstrings.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 0da2cf5a999c
children
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1 /*
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2 * The decode_hex_digits() function contained in this module
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3 * will be used by the XRAM and flash loading commands
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4 * which take SREC-like long hex string arguments.
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5 */
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6
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7 #include <ctype.h>
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8 #include "types.h"
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9
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10 decode_hex_digits(str, ndigits, valp)
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11 char *str;
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12 int ndigits;
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13 u32 *valp;
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14 {
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15 u32 accum;
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16 int i, c;
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17
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18 accum = 0;
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19 for (i = 0; i < ndigits; i++) {
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20 c = *str++;
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21 if (!isxdigit(c))
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22 return(-1);
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23 accum <<= 4;
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24 if (isdigit(c))
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25 accum += c - '0';
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26 else if (islower(c))
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27 accum += c - 'a' + 10;
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28 else
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29 accum += c - 'A' + 10;
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30 }
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31 *valp = accum;
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32 return(0);
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33 }