FreeCalypso > hg > freecalypso-tools

annotate target-utils/libcommon/buzzer.c @ 435:0a01e1c4ea54

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documentation: added some notes about the importance of preserving our /opt/freecalypso private directory hierarchy
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 04 Nov 2018 21:55:19 +0000
parents 4be951811791
children
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1 /*
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2 * Commands for exercising the Calypso's buzzer output, whatever
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3 * actual hardware (piezo buzzer or vibrator) it may be driving
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4 * on a given Calypso device.
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5 */
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6
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7 #include <sys/types.h>
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8 #include "types.h"
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9
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10 extern u_long strtoul();
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11
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12 #define ARMIO_LOAD_TIM (*(volatile u16 *) 0xFFFE4808)
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13 #define BUZZ_LIGHT_REG (*(volatile u16 *) 0xFFFE480E)
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14 #define BUZZ_LEVEL_REG (*(volatile u16 *) 0xFFFE4812)
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15
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16 void
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17 cmd_buzlev(argbulk)
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18 char *argbulk;
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19 {
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20 char *argv[2];
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21 u32 arg;
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22
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23 if (parse_args(argbulk, 0, 1, argv, 0) < 0)
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24 return;
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25 if (argv[0]) {
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26 arg = strtoul(argv[0], 0, 0);
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27 if (arg > 0xFFFF) {
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28 printf("ERROR: argument out of range\n");
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29 return;
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30 }
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31 BUZZ_LEVEL_REG = arg;
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32 } else
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33 printf("%04X\n", BUZZ_LEVEL_REG);
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34 }
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35
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36 void
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37 cmd_buz(argbulk)
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38 char *argbulk;
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39 {
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40 char *argv[2];
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41 u32 arg;
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42 int c;
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43
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44 if (parse_args(argbulk, 1, 1, argv, 0) < 0)
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45 return;
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46 arg = strtoul(argv[0], 0, 0);
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47 if (arg > 0xFFFF) {
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48 printf("ERROR: argument out of range\n");
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49 return;
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50 }
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51 ARMIO_LOAD_TIM = arg;
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52 BUZZ_LIGHT_REG = 1;
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53 for (;;) {
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54 c = serial_in_poll();
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55 if (c >= 0)
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56 break;
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57 }
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58 BUZZ_LIGHT_REG = 0;
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59 }