FreeCalypso > hg > freecalypso-tools

annotate target-utils/pirexplore/rtc.c @ 408:f0e6dd5971f2

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CHANGES: fcup-* minor fixes documented
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 11 Aug 2018 22:36:26 +0000
parents e7502631a0f9
children
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Mychaela Falconia <falcon@freecalypso.org>
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1 #include "types.h"
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2 #include "rtc.h"
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3
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4 static void
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5 read_time(tm)
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6 struct rtctime *tm;
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7 {
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8 tm->year = RTC_REGS.rtc_cur.year;
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9 tm->month = RTC_REGS.rtc_cur.month;
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10 tm->day_of_month = RTC_REGS.rtc_cur.day_of_month;
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11 tm->day_of_week = RTC_REGS.rtc_cur.day_of_week;
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12 tm->hours = RTC_REGS.rtc_cur.hours;
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13 tm->minutes = RTC_REGS.rtc_cur.minutes;
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14 tm->seconds = RTC_REGS.rtc_cur.seconds;
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15 }
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16
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17 void
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18 cmd_rtc()
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19 {
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20 u8 ctrl;
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21 struct rtctime time1, time2;
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22 int c;
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23
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24 ctrl = RTC_REGS.rtc_ctrl_reg;
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25 printf("RTC_CTRL_REG = %02X ", ctrl);
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26 switch (ctrl) {
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27 case 0x00:
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28 printf("(frozen)\n");
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29 break;
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30 case 0x01:
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31 printf("(running)\n");
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32 break;
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33 default:
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34 printf("(unexpected)\n");
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35 return;
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36 }
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37 printf("Reading RTC time");
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38 for (;;) {
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39 c = serial_in_poll();
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40 if (c >= 0) {
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41 printf("<INTERRUPT>\n");
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42 return;
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43 }
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44 read_time(&time1);
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45 read_time(&time2);
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46 if (!bcmp(&time1.minutes, &time2.minutes, 6))
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47 break;
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48 }
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49 printf("\nDATE %02X-%02X-%02X DOW %02X TIME %02X:%02X:%02X\n",
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50 time2.year, time2.month, time2.day_of_month, time2.day_of_week,
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51 time2.hours, time2.minutes, time2.seconds);
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52 }
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53
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54 void
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55 cmd_rtccomp()
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56 {
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57 printf("%04X\n", (RTC_REGS.rtc_comp_msb_reg << 8) |
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58 RTC_REGS.rtc_comp_lsb_reg);
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59 }