FreeCalypso > hg > freecalypso-tools

annotate target-utils/libcommon/cmd_r16.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 e7502631a0f9
children
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1 /*
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2 * r16 hexaddr -- read a 16-bit register or memory location
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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 "types.h"
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8 void
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9 cmd_r16(argbulk)
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10 char *argbulk;
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11 {
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12 char *argv[2];
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13 u_long addr;
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15 if (parse_args(argbulk, 1, 1, argv, 0) < 0)
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16 return;
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17 if (parse_hexarg(argv[0], 8, &addr) < 0) {
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18 printf("ERROR: argument must be a valid 32-bit hex address\n");
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19 return;
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20 }
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21 if (addr & 1) {
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22 printf("ERROR: unaligned address\n");
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23 return;
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24 }
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25 printf("%04X\n", *(volatile u16 *)addr);
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26 }