2 /* pndevmapperd exists to watch for a few interesting events and to launch scripts when they occur
3 * ie: when the lid closes, should invoke power-mode toggle sh-script
6 // woot for writing code while sick.
8 // this code begs a rewrite, but should work fine; its just arranged goofily
9 // -> I mean, why the racial divide between keys and other events?
10 // -> now that I've put together pnd_io_evdev, should leverage that; be much cleaner.
12 #include <stdio.h> /* for printf, NULL */
13 #include <stdlib.h> /* for free */
14 #include <string.h> /* for strdup */
15 #include <unistd.h> // for exit()
16 #include <sys/types.h> // for umask
17 #include <sys/stat.h> // for umask
18 #include <fcntl.h> // for open(2)
19 #include <errno.h> // for errno
20 #include <time.h> // for time(2)
21 #include <ctype.h> // for isdigit
22 #include <signal.h> // for sigaction
23 #include <sys/wait.h> // for wait
24 #include <sys/time.h> // setitimer
26 #include <linux/input.h> // for keys
27 //#include "../../kernel-rip/input.h" // for keys
30 #include "pnd_container.h"
32 #include "pnd_discovery.h"
33 #include "pnd_locate.h"
34 #include "pnd_pndfiles.h"
36 #include "pnd_logger.h"
37 #include "pnd_utility.h"
38 #include "pnd_notify.h"
39 #include "pnd_device.h"
43 unsigned char g_daemon_mode = 0;
44 unsigned int g_minimum_separation = 1;
48 pndn_rem, // will set default log level to here, so 'debug' is omitted
52 } pndnotify_loglevels_e;
54 // key/event definition
61 keycode_t keycodes[] = {
64 { KEY_MENU, "pandora" },
65 { KEY_POWER, "power" },
66 { KEY_DELETE, "del" },
67 { KEY_COMMA, "comma" },
78 { KEY_BRIGHTNESSDOWN, "lcdbrightdown" },
79 { KEY_BRIGHTNESSUP, "lcdbrightup" },
89 generic_event_t generics[] = {
90 { EV_SW, 0, "lid-toggle" }, // expecting value 1 (lid close) or 0 (lid open)
94 // event-to-sh mapping
98 unsigned char key_p; // 1 if its a key, otherwise an event
100 /* template information
102 void *reqs; // scancode/etc for the event in question
104 char *script; // script to invoke
105 unsigned int maxhold; // maximum hold-time before forcing script invocation
109 time_t last_trigger_time;
114 #define MAXEVENTS 255
115 evmap_t g_evmap [ MAXEVENTS ];
116 unsigned int g_evmap_max = 0;
117 unsigned int g_queued_keyups = 0;
120 unsigned char b_threshold = 5; // %battery
121 unsigned int b_frequency = 300; // frequency to check
122 unsigned int b_blinkfreq = 2; // blink every 2sec
123 unsigned int b_blinkdur = 1000; // blink duration (uSec), 0sec + uSec is assumed
124 unsigned char b_active = 0; // 0=inactive, 1=active and waiting to blink, 2=blink is on, waiting to turn off
125 unsigned char b_shutdown = 1; // %age battery to force a shutdown!
126 char *b_shutdown_script = NULL;
130 void dispatch_key ( int keycode, int val );
131 void dispatch_event ( int code, int val );
132 void sigchld_handler ( int n );
133 unsigned char set_next_alarm ( unsigned int secs, unsigned int usecs );
134 void sigalrm_handler ( int n );
136 static void usage ( char *argv[] ) {
137 printf ( "%s [-d]\n", argv [ 0 ] );
138 printf ( "-d\tDaemon mode; detach from terminal, chdir to /tmp, suppress output. Optional.\n" );
139 printf ( "-l#\tLog-it; -l is 0-and-up (or all), and -l2 means 2-and-up (not all); l[0-3] for now. Log goes to /tmp/pndevmapperd.log\n" );
143 int main ( int argc, char *argv[] ) {
145 int logall = -1; // -1 means normal logging rules; >=0 means log all!
147 for ( i = 1; i < argc; i++ ) {
149 if ( argv [ i ][ 0 ] == '-' && argv [ i ][ 1 ] == 'd' ) {
150 //printf ( "Going daemon mode. Silent running.\n" );
152 } else if ( argv [ i ][ 0 ] == '-' && argv [ i ][ 1 ] == 'l' ) {
154 if ( isdigit ( argv [ i ][ 2 ] ) ) {
155 unsigned char x = atoi ( argv [ i ] + 2 );
173 pnd_log_set_pretext ( "pndevmapperd" );
174 pnd_log_set_flush ( 1 );
176 if ( logall == -1 ) {
177 // standard logging; non-daemon versus daemon
179 if ( g_daemon_mode ) {
182 pnd_log_set_filter ( pndn_rem );
189 f = fopen ( "/tmp/pndevmapperd.log", "w" );
192 pnd_log_set_filter ( logall );
193 pnd_log_to_stream ( f );
194 pnd_log ( pndn_rem, "logall mode - logging to /tmp/pndevmapperd.log\n" );
197 if ( logall == pndn_debug ) {
198 pnd_log_set_buried_logging ( 1 ); // log the shit out of it
199 pnd_log ( pndn_rem, "logall mode 0 - turned on buried logging\n" );
204 pnd_log ( pndn_rem, "%s built %s %s", argv [ 0 ], __DATE__, __TIME__ );
206 pnd_log ( pndn_rem, "log level starting as %u", pnd_log_get_filter() );
208 // basic daemon set up
209 if ( g_daemon_mode ) {
211 // set a CWD somewhere else
214 // detach from terminal
215 if ( ( i = fork() ) < 0 ) {
216 pnd_log ( pndn_error, "ERROR: Couldn't fork()\n" );
220 exit ( 0 ); // exit parent
225 umask ( 022 ); // emitted files can be rwxr-xr-x
229 /* hmm, seems to not like working right after boot.. do we depend on another daemon or
230 * on giving kernel time to init something, or ... wtf?
231 * -- lets give the system some time to wake up
235 // this one works for pndnotifyd, which actually needs INOTIFYH..
238 // check if inotify is awake yet; if not, try waiting for awhile to see if it does
239 pnd_log ( pndn_rem, "Starting INOTIFY test; should be instant, but may take awhile...\n" );
241 if ( ! pnd_notify_wait_until_ready ( 120 /* seconds */ ) ) {
242 pnd_log ( pndn_error, "ERROR: INOTIFY refuses to be useful and quite awhile has passed. Bailing out.\n" );
246 pnd_log ( pndn_rem, "INOTIFY seems to be useful, whew.\n" );
248 // pndnotifyd also waits for user to log in .. pretty excessive, especially since
249 // what if user wants to close the lid while at the log in screen? for now play the
250 // odds as thats pretty unliekly usage scenariom but is clearly not acceptible :/
253 // wait for a user to be logged in - we should probably get hupped when a user logs in, so we can handle
254 // log-out and back in again, with SDs popping in and out between..
255 pnd_log ( pndn_rem, "Checking to see if a user is logged in\n" );
256 char tmp_username [ 128 ];
258 if ( pnd_check_login ( tmp_username, 127 ) ) {
261 pnd_log ( pndn_debug, " No one logged in yet .. spinning.\n" );
264 pnd_log ( pndn_rem, "Looks like user '%s' is in, continue.\n", tmp_username );
268 /* inhale config or die trying
272 // attempt to fetch a sensible default searchpath for configs
273 configpath = pnd_conf_query_searchpath();
275 // attempt to fetch the apps config. since it finds us the runscript
276 pnd_conf_handle evmaph;
278 evmaph = pnd_conf_fetch_by_id ( pnd_conf_evmap, configpath );
281 // couldn't locate conf, just bail
282 pnd_log ( pndn_error, "ERROR: Couldn't locate conf file\n" );
286 /* iterate across conf, stocking the event map
288 void *n = pnd_box_get_head ( evmaph );
291 char *k = pnd_box_get_key ( n );
292 //printf ( "key %s\n", k );
294 if ( strncmp ( k, "keys.", 5 ) == 0 ) {
297 // keys should really push push generic-events onto the table, since they;'re just a special case of them
298 // to make things easier to read
300 // figure out which keycode we're talking about
301 keycode_t *p = keycodes;
302 while ( p -> keycode != -1 ) {
303 if ( strcasecmp ( p -> keyname, k ) == 0 ) {
309 if ( p -> keycode != -1 ) {
310 g_evmap [ g_evmap_max ].key_p = 1; // its a key, not an event
311 g_evmap [ g_evmap_max ].reqs = p; // note the keycode
313 // note the script to activate in response
314 if ( strchr ( n, ' ' ) ) {
315 char *foo = strdup ( n );
316 char *t = strchr ( foo, ' ' );
318 g_evmap [ g_evmap_max ].script = foo;
319 g_evmap [ g_evmap_max ].maxhold = atoi ( t + 1 );
321 g_evmap [ g_evmap_max ].script = n;
322 g_evmap [ g_evmap_max ].maxhold = 0;
325 pnd_log ( pndn_rem, "Registered key %s [%d] to script %s with maxhold %d\n",
326 p -> keyname, p -> keycode, (char*) n, g_evmap [ g_evmap_max ].maxhold );
330 pnd_log ( pndn_warning, "WARNING! Key '%s' is not handled by pndevmapperd yet! Skipping.", k );
333 } else if ( strncmp ( k, "events.", 7 ) == 0 ) {
336 // yes, key events could really be defined in this generic sense, and really we could just let people
337 // put the code and so on right in the conf, but trying to keep it easy on people; maybe should
338 // add a 'generic' section to conf file and just let folks redefine random events that way
339 // Really, it'd be nice if the /dev/input/events could spit out useful text, and just use scripts
340 // to respond without a daemon per se; for that matter, pnd-ls and pnd-map pnd-dotdesktopemitter
341 // should just exist as scripts rather than daemons, but whose counting?
343 // figure out which keycode we're talking about
344 generic_event_t *p = generics;
345 while ( p -> code != -1 ) {
346 if ( strcasecmp ( p -> name, k ) == 0 ) {
352 if ( p -> code != -1 ) {
353 g_evmap [ g_evmap_max ].key_p = 0; // its an event, not a key
354 g_evmap [ g_evmap_max ].reqs = p; // note the keycode
355 g_evmap [ g_evmap_max ].script = n; // note the script to activate in response
356 pnd_log ( pndn_rem, "Registered generic event %s [%d] to script %s\n", p -> name, p -> code, (char*) n );
359 pnd_log ( pndn_warning, "WARNING! Generic event '%s' is not handled by pndevmapperd yet! Skipping.", k );
362 } else if ( strncmp ( k, "pndevmapperd.", 7 ) == 0 ) {
363 // not consumed here, skip silently
365 } else if ( strncmp ( k, "battery.", 8 ) == 0 ) {
366 // not consumed here, skip silently
370 pnd_log ( pndn_warning, "Unknown config key '%s'; skipping.\n", k );
373 n = pnd_box_get_next ( n );
376 if ( pnd_conf_get_as_int ( evmaph, "pndevmapperd.loglevel" ) != PND_CONF_BADNUM ) {
377 pnd_log_set_filter ( pnd_conf_get_as_int ( evmaph, "pndevmapperd.loglevel" ) );
378 pnd_log ( pndn_rem, "config file causes loglevel to change to %u", pnd_log_get_filter() );
381 if ( pnd_conf_get_as_int ( evmaph, "pndevmapperd.minimum_separation" ) != PND_CONF_BADNUM ) {
382 g_minimum_separation = pnd_conf_get_as_int ( evmaph, "pndevmapperd.minimum_separation" );
383 pnd_log ( pndn_rem, "config file causes minimum_separation to change to %u", g_minimum_separation );
387 if ( pnd_conf_get_as_int ( evmaph, "battery.threshold" ) != PND_CONF_BADNUM ) {
388 b_threshold = pnd_conf_get_as_int ( evmaph, "battery.threshold" );
389 pnd_log ( pndn_rem, "Battery threshold set to %u", b_threshold );
391 if ( pnd_conf_get_as_int ( evmaph, "battery.check_interval" ) != PND_CONF_BADNUM ) {
392 b_frequency = pnd_conf_get_as_int ( evmaph, "battery.check_interval" );
393 pnd_log ( pndn_rem, "Battery check interval set to %u", b_frequency );
395 if ( pnd_conf_get_as_int ( evmaph, "battery.blink_interval" ) != PND_CONF_BADNUM ) {
396 b_blinkfreq = pnd_conf_get_as_int ( evmaph, "battery.blink_interval" );
397 pnd_log ( pndn_rem, "Battery blink interval set to %u", b_blinkfreq );
399 if ( pnd_conf_get_as_int ( evmaph, "battery.blink_duration" ) != PND_CONF_BADNUM ) {
400 b_blinkdur = pnd_conf_get_as_int ( evmaph, "battery.blink_duration" );
401 pnd_log ( pndn_rem, "Battery blink duration set to %u", b_blinkdur );
404 if ( pnd_conf_get_as_int ( evmaph, "battery.shutdown_threshold" ) != PND_CONF_BADNUM ) {
405 b_shutdown = pnd_conf_get_as_int ( evmaph, "battery.shutdown_threshold" );
406 pnd_log ( pndn_rem, "Battery shutdown threshold set to %u", b_shutdown );
408 if ( pnd_conf_get_as_char ( evmaph, "battery.shutdown_script" ) != NULL ) {
409 b_shutdown_script = strdup ( pnd_conf_get_as_char ( evmaph, "battery.shutdown_script" ) );
410 pnd_log ( pndn_rem, "Battery shutdown script set to %s", b_shutdown_script );
413 /* do we have anything to do?
415 if ( ! g_evmap_max ) {
416 // uuuh, nothing to do?
417 pnd_log ( pndn_warning, "WARNING! No events configured to watch, so just spinning wheels...\n" );
421 /* set up sigchld -- don't want zombies all over; well, we do, but not process zombies
426 struct sigaction siggy;
427 siggy.sa_handler = sigchld_handler;
428 siggy.sa_mask = ss; /* implicitly blocks the origin signal */
429 siggy.sa_flags = SA_RESTART; /* don't need anything */
430 sigaction ( SIGCHLD, &siggy, NULL );
432 /* set up the battery level warning timers
434 siggy.sa_handler = sigalrm_handler;
435 siggy.sa_mask = ss; /* implicitly blocks the origin signal */
436 siggy.sa_flags = SA_RESTART; /* don't need anything */
437 sigaction ( SIGALRM, &siggy, NULL );
439 if ( set_next_alarm ( b_frequency, 0 ) ) { // check every 'frequency' seconds
440 pnd_log ( pndn_rem, "Checking for low battery every %u seconds\n", b_frequency );
442 pnd_log ( pndn_error, "ERROR: Couldn't set up timer for every %u seconds\n", b_frequency );
445 /* actually try to do something useful
448 // stolen in part from notaz :)
450 // try to locate the appropriate devices
452 int fds [ 8 ] = { -1, -1, -1, -1, -1, -1, -1, -1 }; // 0 = keypad, 1 = gpio keys
455 for ( id = 0; ; id++ ) {
457 char name[256] = { 0, };
460 snprintf ( fname, sizeof ( fname ), "/dev/input/event%i", id );
461 fd = open ( fname, O_RDONLY );
467 if ( ioctl (fd, EVIOCGNAME(sizeof(name)), name ) < 0 ) {
471 pnd_log ( pndn_rem, "%s maps to %s\n", fname, name );
473 if ( strcmp ( name, PND_EVDEV_KEYPAD/*"omap_twl4030keypad"*/ ) == 0 ) {
475 } else if ( strcmp ( name, "gpio-keys" ) == 0) {
477 } else if ( strcmp ( name, "AT Translated Set 2 keyboard" ) == 0) { // for vmware, my dev environment
479 } else if ( strcmp ( name, PND_EVDEV_POWER/*"triton2-pwrbutton"*/ ) == 0) {
481 } else if ( strcmp ( name, PND_EVDEV_TS/*"ADS784x Touchscreen"*/ ) == 0) {
483 } else if ( strcmp ( name, PND_EVDEV_NUB1/*"vsense66"*/ ) == 0) {
485 } else if ( strcmp ( name, PND_EVDEV_NUB1/*"vsense67"*/ ) == 0) {
488 pnd_log ( pndn_rem, "Ignoring unknown device '%s'\n", name );
495 if (imaxfd < fd) imaxfd = fd;
499 if ( fds [ 0 ] == -1 ) {
500 pnd_log ( pndn_warning, "WARNING! Couldn't find keypad device\n" );
503 if ( fds [ 1 ] == -1 ) {
504 pnd_log ( pndn_warning, "WARNING! couldn't find button device\n" );
507 if ( fds [ 0 ] == -1 && fds [ 1 ] == -1 ) {
508 pnd_log ( pndn_error, "ERROR! Couldn't find either device!\n" );
512 /* loop forever, watching for events
516 struct input_event ev[64];
518 unsigned int max_fd = 3; /* imaxfd */
519 int fd = -1, rd, ret;
526 for (i = 0; i < max_fd /*imaxfd*/; i++) {
527 if ( fds [ i ] != -1 ) {
528 FD_SET( fds [ i ], &fdset );
530 if ( fds [ i ] > imaxfd ) {
537 // figure out if we can block forever, or not
538 unsigned char do_block = 1;
543 for ( i = i; i < g_evmap_max; i++ ) {
544 if ( g_evmap [ i ].keydown_time && g_evmap [ i ].maxhold ) {
550 // wait for fd's or timeout
551 ret = select ( imaxfd + 1, &fdset, NULL, NULL, do_block ? NULL /* no timeout */ : &tv );
554 pnd_log ( pndn_error, "ERROR! select(2) failed with: %s\n", strerror ( errno ) );
557 } else if ( ret == 0 ) { // select returned with timeout (no fd)
559 // timeout occurred; should only happen when 1 or more keys are being held down and
560 // they're "maxhold" keys, so we have to see if their timer has passed
561 unsigned int now = time ( NULL );
563 for ( i = i; i < g_evmap_max; i++ ) {
565 if ( g_evmap [ i ].keydown_time &&
566 g_evmap [ i ].maxhold &&
567 now - g_evmap [ i ].keydown_time >= g_evmap [ i ].maxhold )
569 keycode_t *k = (keycode_t*) g_evmap [ i ].reqs;
570 dispatch_key ( k -> keycode, 0 /* key up */ );
575 } else { // an fd was fiddled with
577 for ( i = 0; i < max_fd; i++ ) {
578 if ( fds [ i ] != -1 && FD_ISSET ( fds [ i ], &fdset ) ) {
583 /* buttons or keypad */
584 rd = read ( fd, ev, sizeof(struct input_event) * 64 );
585 if ( rd < (int) sizeof(struct input_event) ) {
586 pnd_log ( pndn_error, "ERROR! read(2) input_event failed with: %s\n", strerror ( errno ) );
590 for (i = 0; i < rd / sizeof(struct input_event); i++ ) {
592 if ( ev[i].type == EV_SYN ) {
594 } else if ( ev[i].type == EV_KEY ) {
596 // do we even know about this key at all?
597 keycode_t *p = keycodes;
598 while ( p -> keycode != -1 ) {
599 if ( p -> keycode == ev [ i ].code ) {
605 // if we do, hand it off to dispatcher to look up if we actually do something with it
606 if ( p -> keycode != -1 ) {
608 pnd_log ( pndn_debug, "Key Event: key %s [%d] value %d\n", p -> keyname, p -> keycode, ev [ i ].value );
610 dispatch_key ( p -> keycode, ev [ i ].value );
613 pnd_log ( pndn_warning, "Unknown Key Event: keycode %d value %d\n", ev [ i ].code, ev [ i ].value );
617 } else if ( ev[i].type == EV_SW ) {
619 // do we even know about this event at all?
620 generic_event_t *p = generics;
621 while ( p -> code != -1 ) {
622 if ( p -> code == ev [ i ].code ) {
628 // if we do, hand it off to dispatcher to look up if we actually do something with it
629 if ( p -> code != -1 ) {
631 pnd_log ( pndn_debug, "Generic Event: event %s [%d] value %d\n", p -> name, p -> code, ev [ i ].value );
633 dispatch_event ( p -> code, ev [ i ].value );
636 pnd_log ( pndn_warning, "Unknown Generic Event: code %d value %d\n", ev [ i ].code, ev [ i ].value );
641 pnd_log ( pndn_debug, "DEBUG: Unexpected event type %i received\n", ev[i].type );
647 } // an fd was touched
651 for (i = 0; i < 2; i++) {
652 if ( i != 2 && fds [ i ] != -1 ) {
660 // this should really register the keystate and time, and then another func to monitor
661 // time-passage and check the registered list and act on the event..
662 void dispatch_key ( int keycode, int val ) {
666 // 1 - down (pressed)
667 // 2 - down again (hold)
670 for ( i = 0; i < g_evmap_max; i++ ) {
672 if ( ( g_evmap [ i ].key_p ) &&
673 ( ((keycode_t*) (g_evmap [ i ].reqs)) -> keycode == keycode ) &&
674 ( g_evmap [ i ].script ) )
676 unsigned char invoke_it = 0;
678 // is this a keydown or a keyup?
681 g_evmap [ i ].keydown_time = time ( NULL );
683 } else if ( val == 2 && g_evmap [ i ].keydown_time ) {
684 // key is being held; we should check if max-hold is set
686 if ( g_evmap [ i ].maxhold &&
687 time ( NULL ) - g_evmap [ i ].keydown_time >= g_evmap [ i ].maxhold )
692 } else if ( val == 0 && g_evmap [ i ].keydown_time ) {
693 // keyup (while key is down)
695 if ( time ( NULL ) - g_evmap [ i ].last_trigger_time >= g_minimum_separation ) {
698 pnd_log ( pndn_rem, "Skipping invokation.. falls within minimum_separation threshold\n" );
705 char holdtime [ 128 ];
706 sprintf ( holdtime, "%d", (int)( time(NULL) - g_evmap [ i ].keydown_time ) );
707 pnd_log ( pndn_rem, "Will attempt to invoke: %s %s\n", g_evmap [ i ].script, holdtime );
710 g_evmap [ i ].keydown_time = 0; // clear the keydown-ness
711 g_evmap [ i ].last_trigger_time = time ( NULL );
716 if ( ( x = fork() ) < 0 ) {
717 pnd_log ( pndn_error, "ERROR: Couldn't fork()\n" );
722 execl ( g_evmap [ i ].script, g_evmap [ i ].script, holdtime, (char*)NULL );
723 pnd_log ( pndn_error, "ERROR: Couldn't exec(%s)\n", g_evmap [ i ].script );
727 } // invoke the script!
730 } // found matching event for keycode
737 void dispatch_event ( int code, int val ) {
740 // LID val decodes as:
744 pnd_log ( pndn_rem, "Dispatching Event..\n" );
746 for ( i = 0; i < g_evmap_max; i++ ) {
748 if ( ( g_evmap [ i ].key_p == 0 ) &&
749 ( ((generic_event_t*) (g_evmap [ i ].reqs)) -> code == code ) &&
750 ( g_evmap [ i ].script ) )
753 // just hand the code to the script (ie: 0 or 1 to script)
754 if ( time ( NULL ) - g_evmap [ i ].last_trigger_time >= g_minimum_separation ) {
758 sprintf ( value, "%d", val );
760 g_evmap [ i ].last_trigger_time = time ( NULL );
762 pnd_log ( pndn_rem, "Will attempt to invoke: %s %s\n", g_evmap [ i ].script, value );
764 if ( ( x = fork() ) < 0 ) {
765 pnd_log ( pndn_error, "ERROR: Couldn't fork()\n" );
770 execl ( g_evmap [ i ].script, g_evmap [ i ].script, value, (char*)NULL );
771 pnd_log ( pndn_error, "ERROR: Couldn't exec(%s)\n", g_evmap [ i ].script );
776 pnd_log ( pndn_rem, "Skipping invokation.. falls within minimum_separation threshold\n" );
780 } // found matching event for keycode
787 void sigchld_handler ( int n ) {
789 pnd_log ( pndn_rem, "---[ SIGCHLD received ]---\n" );
794 pnd_log ( pndn_rem, " SIGCHLD done ]---\n" );
799 unsigned char set_next_alarm ( unsigned int secs, unsigned int usecs ) {
801 // assume that SIGALRM is already being caught, we just set the itimer here
803 struct itimerval itv;
805 // if no timer at all, set the 'current' one so it does something; otherwise
807 getitimer ( ITIMER_REAL, &itv );
809 if ( itv.it_value.tv_sec == 0 && itv.it_value.tv_sec == 0 ) {
810 itv.it_value.tv_sec = secs;
811 itv.it_value.tv_usec = usecs;
814 // set the next timer
815 //bzero ( &itv, sizeof(struct itimerval) );
817 itv.it_interval.tv_sec = secs;
818 itv.it_interval.tv_usec = usecs;
820 // if next-timer is less than current, set current too
821 if ( itv.it_value.tv_sec > itv.it_interval.tv_sec ) {
822 itv.it_value.tv_sec = secs;
823 itv.it_value.tv_usec = usecs;
826 if ( setitimer ( ITIMER_REAL, &itv, NULL /* old value returned here */ ) < 0 ) {
834 void sigalrm_handler ( int n ) {
836 pnd_log ( pndn_debug, "---[ SIGALRM ]---\n" );
838 int batlevel = pnd_device_get_battery_gauge_perc();
840 if ( batlevel < 0 ) {
842 // couldn't read the battery level, so just assume low and make blinks?
843 batlevel = 4; // low, but not cause a shutdown
845 // couldn't read the battery level, so just assume ok!
850 // first -- are we critical yet? if so, shut down!
851 if ( batlevel <= b_shutdown && b_shutdown_script ) {
854 if ( pnd_device_get_charge_current ( &mamps ) && mamps > 100 ) {
855 // critical battery, but charging, so relax.
859 pnd_log ( pndn_error, "CRITICAL BATTERY LEVEL -- shutdown the system down! Invoke: %s\n",
862 if ( ( x = fork() ) < 0 ) {
863 pnd_log ( pndn_error, "ERROR: Couldn't fork()\n" );
868 execl ( b_shutdown_script, b_shutdown_script, (char*)NULL );
869 pnd_log ( pndn_error, "ERROR: Couldn't exec(%s)\n", b_shutdown_script );
877 // is battery warning already active?
881 // is user charging up? if so, stop blinking.
882 // perhaps we shoudl check if charger is connected, and not blink at all in that case..
883 if ( batlevel > b_threshold + 1 /* allow for error in read */ ) {
884 pnd_log ( pndn_debug, "Battery is high again, flipping to non-blinker mode\n" );
886 set_next_alarm ( b_frequency, 0 );
887 pnd_device_set_led_charger_brightness ( 250 );
891 if ( b_active == 1 ) {
893 pnd_log ( pndn_debug, "Blink on\n" );
894 pnd_device_set_led_charger_brightness ( 200 );
895 // set timer to short duration
897 set_next_alarm ( 0, b_blinkdur );
898 } else if ( b_active == 2 ) {
900 pnd_log ( pndn_debug, "Blink off\n" );
901 pnd_device_set_led_charger_brightness ( 10 );
902 // back to longer duration
904 set_next_alarm ( b_blinkfreq, 0 );
911 if ( batlevel <= b_threshold ) {
912 // battery seems low, go to active mode
913 pnd_log ( pndn_debug, "Battery is low, flipping to blinker mode\n" );
915 set_next_alarm ( b_blinkfreq, 0 );