rtc.rar_RTC_RTC_Alarm

#include <stdio.h> #include <stdlib.h> struct rtc_tm { unsigned char secs; unsigned char mins; unsigned char hours; unsigned char mday; unsigned char mon; unsigned char year; /* xx 2 digits :) */ unsigned char wday; unsigned char vl; }; struct rtc_alr { unsigned char mins; unsigned char hours; unsigned char wday; }; #define RTC_GETDATETIME 0 #define RTC_SETTIME 1 #define RTC_SETDATETIME 2 #define RTC_GETCTRL 3 #define RTC_SETCTRL 4 #define RTC_GET_ALR_A 5 #define RTC_SET_ALR_A 6 #define RTC_GET_ALR_B 7 #define RTC_SET_ALR_B 8 static int my_atoi(const char *name) { int val = 0; for (;; name++) { switch (*name) { case '0'...'9': val = 10*val+(*name-'0'); break; default: return val; } } } int main(int argc, char* argv[]) { int fd; struct rtc_tm tm; unsigned int ctrl; struct rtc_alr alr; unsigned int buf[2]; //unsigned char ctrl[16]; //int i; fd = open("/dev/misc/rtc5372",2); if(fd < 0) { printf("err: open /dev/misc/rtc5372 failed\n"); return -1; } memset(&tm,0,sizeof(struct rtc_tm)); switch(argv[1][0]) { case '0': ioctl(fd,RTC_GETDATETIME,&tm); printf("tm.secs = %d\n",tm.secs); printf("tm.mins = %d\n",tm.mins); printf("tm.hours = %d\n",tm.hours); printf("tm.mday = %d\n",tm.mday); printf("tm.mon = %d\n",tm.mon); printf("tm.year = %d\n",tm.year); printf("tm.wday = %d\n",tm.wday); printf("tm.vl = %d\n",tm.vl); break; case '1': if(argc < 6) { printf("[usage] rtc 1 secs mins hours wday\n"); break; } tm.secs = my_atoi(&argv[2][0]); tm.mins = my_atoi(&argv[3][0]); tm.hours = my_atoi(&argv[4][0]); tm.wday = my_atoi(&argv[5][0]); ioctl(fd,RTC_SETTIME,&tm); break; case '2': if(argc < 9) { printf("[usage] rtc 2 secs mins hours wday mday mon year\n"); break; } tm.secs = my_atoi(&argv[2][0]); tm.mins = my_atoi(&argv[3][0]); tm.hours = my_atoi(&argv[4][0]); tm.wday = my_atoi(&argv[5][0]); tm.mday = my_atoi(&argv[6][0]); tm.mon = my_atoi(&argv[7][0]); tm.year = my_atoi(&argv[8][0]); tm.vl = 0; ioctl(fd,RTC_SETDATETIME,&tm); break; case '3': ioctl(fd,RTC_GETCTRL,&ctrl); printf("ctrl = %x\n",ctrl); break; case '4': if(argc < 4) { printf("[usage] rtc 4 ctrl0 ctrl1\n"); break; } buf[0] = my_atoi(&argv[2][0]); buf[1] = my_atoi(&argv[3][0]); ctrl = buf[0] & 0xff; ctrl |= (buf[1]<<8) & 0xff00; ioctl(fd,RTC_SETCTRL,&ctrl); break; case '5': ioctl(fd,RTC_GET_ALR_A,&alr); printf("min=%d hours=%d week=%d\n",alr.mins,alr.hours,alr.wday); break; case '6': if(argc < 5) { printf("[usage] rtc 6 min hours weekday\n"); break; } alr.mins = my_atoi(&argv[2][0]); alr.hours = my_atoi(&argv[3][0]); alr.wday = my_atoi(&argv[4][0]); ioctl(fd,RTC_SET_ALR_A,&alr); break; case '7': ioctl(fd,RTC_GET_ALR_B,&alr); printf("min=%d hours=%d week=%d\n",alr.mins,alr.hours,alr.wday); break; case '8': if(argc < 5) { printf("[usage] rtc 8 min hours weekday\n"); break; } alr.mins = my_atoi(&argv[2][0]); alr.hours = my_atoi(&argv[3][0]); alr.wday = my_atoi(&argv[4][0]); ioctl(fd,RTC_SET_ALR_B,&alr); break; } close(fd); }