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-rw-r--r--core/opiealarm/opiealarm.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/core/opiealarm/opiealarm.c b/core/opiealarm/opiealarm.c
index 70e5415..bb2e684 100644
--- a/core/opiealarm/opiealarm.c
+++ b/core/opiealarm/opiealarm.c
@@ -179,130 +179,131 @@ int main ( int argc, char **argv )
179 fprintf ( stderr, "You need root priviledges to run opiealarm." ); 179 fprintf ( stderr, "You need root priviledges to run opiealarm." );
180 return 2; 180 return 2;
181 } 181 }
182 182
183 if ( !mode ) 183 if ( !mode )
184 usage ( ); 184 usage ( );
185 185
186 186
187 parent_pid = getpid ( ); 187 parent_pid = getpid ( );
188 188
189 // kill running opiealarm 189 // kill running opiealarm
190 opiealarm_was_running = kill_with_pidfile ( ); 190 opiealarm_was_running = kill_with_pidfile ( );
191 remove_pidfile ( ); 191 remove_pidfile ( );
192 192
193 switch ( mode ) { 193 switch ( mode ) {
194 case 'r': opt = resume ( ac_resusp ); 194 case 'r': opt = resume ( ac_resusp );
195 break; 195 break;
196 case 's': 196 case 's':
197 default : opt = suspend ( fix_rtc ); 197 default : opt = suspend ( fix_rtc );
198 break; 198 break;
199 } 199 }
200 200
201 parent_pid = 0; 201 parent_pid = 0;
202 return opt; 202 return opt;
203 } 203 }
204 204
205 205
206int suspend ( int fix_rtc ) 206int suspend ( int fix_rtc )
207{ 207{
208 FILE *fp; 208 FILE *fp;
209 char buf [64]; 209 char buf [64];
210 time_t alrt, syst, rtct; 210 time_t alrt, syst, rtct;
211 struct tm alr, sys, rtc; 211 struct tm alr, sys, rtc;
212 int fd; 212 int fd;
213 int rtc_sys_diff; 213 int rtc_sys_diff;
214 214
215 215
216 if ( !fork_with_pidfile ( )) 216 if ( !fork_with_pidfile ( ))
217 return 3; 217 return 3;
218 218
219 // we are the child process from here on ... 219 // we are the child process from here on ...
220 220
221 tzset ( ); // not sure if it is really needed -- it probably doesn't hurt ... 221 tzset ( ); // not sure if it is really needed -- it probably doesn't hurt ...
222 222
223 do { // try/catch simulation 223 do { // try/catch simulation
224 224
225 // read the wakeup time from /etc/resumeat 225 // read the wakeup time from /etc/resumeat
226 if (!( fp = fopen ( "/etc/resumeat", "r" ))) 226 if (!( fp = fopen ( "/etc/resumeat", "r" )))
227 break; // ( 1, "/etc/resumeat" ); 227 break; // ( 1, "/etc/resumeat" );
228 228
229 if ( !fgets ( buf, sizeof( buf ) - 1, fp )) 229 if ( !fgets ( buf, sizeof( buf ) - 1, fp ))
230 break; // ( 1, "/etc/resumeat" ); 230 break; // ( 1, "/etc/resumeat" );
231 231
232 fclose ( fp ); 232 fclose ( fp );
233 233
234 alrt = atoi ( buf ); // get the alarm time 234 alrt = atoi ( buf ); // get the alarm time
235 if ( alrt == 0 ) 235 if ( alrt == 0 )
236 break; // ( 0, "/etc/resumeat contains an invalid time description" ); 236 break; // ( 0, "/etc/resumeat contains an invalid time description" );
237 alrt -= 5; // wake up 5 sec before the specified time 237 alrt -= 5; // wake up 5 sec before the specified time
238 alr = *gmtime ( &alrt ); 238 alr = *gmtime ( &alrt );
239 239
240 time ( &syst );// get the UNIX system time 240 time ( &syst );// get the UNIX system time
241 sys = *localtime ( &syst ); 241 sys = *localtime ( &syst );
242 242
243 if (( fd = open ( "/dev/misc/rtc", O_RDWR )) < 0 ) // open the RTC device 243 if (( fd = open ( "/dev/misc/rtc", O_RDWR )) < 0 )
244 break; // ( 1, "/dev/misc/rtc" ); 244 if (( fd = open ( "/dev/rtc", O_RDWR )) < 0 )
245 break; // ( 1, "rtc" );
245 246
246 memset ( &rtc, 0, sizeof ( struct tm )); // get the RTC time 247 memset ( &rtc, 0, sizeof ( struct tm )); // get the RTC time
247 if ( ioctl ( fd, RTC_RD_TIME, &rtc ) < 0 ) 248 if ( ioctl ( fd, RTC_RD_TIME, &rtc ) < 0 )
248 break; // ( 1, "ioctl RTC_RD_TIME" ); 249 break; // ( 1, "ioctl RTC_RD_TIME" );
249 rtct = mktime ( &rtc ); 250 rtct = mktime ( &rtc );
250 251
251 rtc_sys_diff = ( syst - rtct ) - sys. tm_gmtoff; // calculate the difference between system and hardware time 252 rtc_sys_diff = ( syst - rtct ) - sys. tm_gmtoff; // calculate the difference between system and hardware time
252 253
253 if ( fix_rtc && (( rtc_sys_diff < -3 ) || ( rtc_sys_diff > 3 ))) { 254 if ( fix_rtc && (( rtc_sys_diff < -3 ) || ( rtc_sys_diff > 3 ))) {
254 struct tm set; 255 struct tm set;
255 set = *gmtime ( &syst ); 256 set = *gmtime ( &syst );
256 257
257 // if the difference between system and hardware time is more than 3 seconds, 258 // if the difference between system and hardware time is more than 3 seconds,
258 // we have to set the RTC (hwclock --systohc), or alarms won't work reliably. 259 // we have to set the RTC (hwclock --systohc), or alarms won't work reliably.
259 260
260 if ( ioctl ( fd, RTC_SET_TIME, &set ) < 0 ) 261 if ( ioctl ( fd, RTC_SET_TIME, &set ) < 0 )
261 break; // ( 1, "ioctl RTC_SET_TIME" ); 262 break; // ( 1, "ioctl RTC_SET_TIME" );
262 } 263 }
263 264
264 if ( ioctl ( fd, RTC_ALM_SET, &alr ) < 0 ) // set RTC alarm time 265 if ( ioctl ( fd, RTC_ALM_SET, &alr ) < 0 ) // set RTC alarm time
265 break; // ( 1, "ioctl RTC_ALM_SET" ); 266 break; // ( 1, "ioctl RTC_ALM_SET" );
266 if ( ioctl ( fd, RTC_AIE_ON, 0 ) < 0 ) 267 if ( ioctl ( fd, RTC_AIE_ON, 0 ) < 0 )
267 break; // ( 1, "ioctl RTC_AIE_ON" ); // enable RTC alarm irq 268 break; // ( 1, "ioctl RTC_AIE_ON" ); // enable RTC alarm irq
268 269
269 // tell the parent it is safe to exit now .. we have set the RTC alarm 270 // tell the parent it is safe to exit now .. we have set the RTC alarm
270 kill ( parent_pid, SIGUSR1 ); 271 kill ( parent_pid, SIGUSR1 );
271 272
272 if ( read ( fd, buf, sizeof( unsigned long )) < 0 ) // wait for the RTC alarm irq 273 if ( read ( fd, buf, sizeof( unsigned long )) < 0 ) // wait for the RTC alarm irq
273 break; // ( 1, "read rtc alarm" ); 274 break; // ( 1, "read rtc alarm" );
274 275
275 // iPAQ woke up via RTC irq -- otherwise we would have received a SIGUSR2 276 // iPAQ woke up via RTC irq -- otherwise we would have received a SIGUSR2
276 // from the "resume instance" of opiealarm. 277 // from the "resume instance" of opiealarm.
277 278
278 if ( ioctl ( fd, RTC_AIE_OFF, 0 ) < 0 ) // disable RTC alarm irq 279 if ( ioctl ( fd, RTC_AIE_OFF, 0 ) < 0 ) // disable RTC alarm irq
279 break; // ( 1, "ioctl RTC_AIE_OFF" ); 280 break; // ( 1, "ioctl RTC_AIE_OFF" );
280 281
281 close ( fd ); 282 close ( fd );
282 283
283 remove_pidfile ( ); // normal exit 284 remove_pidfile ( ); // normal exit
284 return 0; 285 return 0;
285 286
286 } while ( 0 ); 287 } while ( 0 );
287 288
288 kill ( parent_pid, SIGUSR1 ); // parent is still running - it can exit now 289 kill ( parent_pid, SIGUSR1 ); // parent is still running - it can exit now
289 290
290 while ( 1 ) // pretend that we are waiting on RTC, so opiealarm -r can kill us 291 while ( 1 ) // pretend that we are waiting on RTC, so opiealarm -r can kill us
291 sleep ( 1000 ); // if we don't do this, the "resuspend on AC" would be triggerd 292 sleep ( 1000 ); // if we don't do this, the "resuspend on AC" would be triggerd
292 return 0; 293 return 0;
293} 294}
294 295
295 296
296int onac ( void ) 297int onac ( void )
297{ 298{
298 FILE *fp; 299 FILE *fp;
299 int on = 0; 300 int on = 0;
300 301
301 // check the apm proc interface for AC status 302 // check the apm proc interface for AC status
302 303
303 if (( fp = fopen ( APMFILE, "r" ))) { 304 if (( fp = fopen ( APMFILE, "r" ))) {
304 int ac = 0; 305 int ac = 0;
305 306
306 if ( fscanf ( fp, "%*[^ ] %*d.%*d 0x%*x 0x%x 0x%*x 0x%*x %*d%% %*i %*c", &ac ) == 1 ) 307 if ( fscanf ( fp, "%*[^ ] %*d.%*d 0x%*x 0x%x 0x%*x 0x%*x %*d%% %*i %*c", &ac ) == 1 )
307 on = ( ac == 0x01 ) ? 1 : 0; 308 on = ( ac == 0x01 ) ? 1 : 0;
308 309