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
11 #include <stdio.h> /* for printf, NULL */
12 #include <stdlib.h> /* for free */
13 #include <string.h> /* for strdup */
14 #include <unistd.h> // for exit()
15 #include <sys/types.h> // for umask
16 #include <sys/stat.h> // for umask
17 #include <fcntl.h> // for open(2)
18 #include <errno.h> // for errno
19 #include <time.h> // for time(2)
20 #include <ctype.h> // for isdigit
21 #include <signal.h> // for sigaction
22 #include <sys/wait.h> // for wait
23 #include <sys/time.h> // setitimer
25 #include <linux/input.h> // for keys
26 //#include "../../kernel-rip/input.h" // for keys
29 #include "pnd_container.h"
31 #include "pnd_discovery.h"
32 #include "pnd_locate.h"
33 #include "pnd_pndfiles.h"
35 #include "pnd_logger.h"
36 #include "pnd_utility.h"
37 #include "pnd_notify.h"
38 #include "pnd_device.h"
42 unsigned char g_daemon_mode = 0;
43 unsigned int g_minimum_separation = 1;
47 pndn_rem, // will set default log level to here, so 'debug' is omitted
51 } pndnotify_loglevels_e;
53 // key/event definition
60 keycode_t keycodes[] = {
62 { KEY_MENU, "pandora" },
63 { KEY_POWER, "power" },
73 generic_event_t generics[] = {
74 { EV_SW, 0, "lid-toggle" }, // expecting value 1 (lid close) or 0 (lid open)
78 // event-to-sh mapping
82 unsigned char key_p; // 1 if its a key, otherwise an event
84 /* template information
86 void *reqs; // scancode/etc for the event in question
88 char *script; // script to invoke
89 //unsigned int hold_min; // minimum hold-time to trigger
93 time_t last_trigger_time;
99 evmap_t g_evmap [ MAXEVENTS ];
100 unsigned int g_evmap_max = 0;
103 unsigned char b_threshold = 5; // %battery
104 unsigned int b_frequency = 300; // frequency to check
105 unsigned int b_blinkfreq = 2; // blink every 2sec
106 unsigned int b_blinkdur = 1000; // blink duration (uSec), 0sec + uSec is assumed
107 unsigned char b_active = 0; // 0=inactive, 1=active and waiting to blink, 2=blink is on, waiting to turn off
108 unsigned char b_shutdown = 1; // %age battery to force a shutdown!
109 char *b_shutdown_script = NULL;
113 void dispatch_key ( int keycode, int val );
114 void dispatch_event ( int code, int val );
115 void sigchld_handler ( int n );
116 unsigned char set_next_alarm ( unsigned int secs, unsigned int usecs );
117 void sigalrm_handler ( int n );
119 static void usage ( char *argv[] ) {
120 printf ( "%s [-d]\n", argv [ 0 ] );
121 printf ( "-d\tDaemon mode; detach from terminal, chdir to /tmp, suppress output. Optional.\n" );
122 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" );
126 int main ( int argc, char *argv[] ) {
128 int logall = -1; // -1 means normal logging rules; >=0 means log all!
130 for ( i = 1; i < argc; i++ ) {
132 if ( argv [ i ][ 0 ] == '-' && argv [ i ][ 1 ] == 'd' ) {
133 //printf ( "Going daemon mode. Silent running.\n" );
135 } else if ( argv [ i ][ 0 ] == '-' && argv [ i ][ 1 ] == 'l' ) {
137 if ( isdigit ( argv [ i ][ 2 ] ) ) {
138 unsigned char x = atoi ( argv [ i ] + 2 );
156 pnd_log_set_pretext ( "pndevmapperd" );
157 pnd_log_set_flush ( 1 );
159 if ( logall == -1 ) {
160 // standard logging; non-daemon versus daemon
162 if ( g_daemon_mode ) {
165 pnd_log_set_filter ( pndn_rem );
172 f = fopen ( "/tmp/pndevmapperd.log", "w" );
175 pnd_log_set_filter ( logall );
176 pnd_log_to_stream ( f );
177 pnd_log ( pndn_rem, "logall mode - logging to /tmp/pndevmapperd.log\n" );
180 if ( logall == pndn_debug ) {
181 pnd_log_set_buried_logging ( 1 ); // log the shit out of it
182 pnd_log ( pndn_rem, "logall mode 0 - turned on buried logging\n" );
187 pnd_log ( pndn_rem, "%s built %s %s", argv [ 0 ], __DATE__, __TIME__ );
189 pnd_log ( pndn_rem, "log level starting as %u", pnd_log_get_filter() );
191 // basic daemon set up
192 if ( g_daemon_mode ) {
194 // set a CWD somewhere else
197 // detach from terminal
198 if ( ( i = fork() ) < 0 ) {
199 pnd_log ( pndn_error, "ERROR: Couldn't fork()\n" );
203 exit ( 0 ); // exit parent
208 umask ( 022 ); // emitted files can be rwxr-xr-x
212 /* hmm, seems to not like working right after boot.. do we depend on another daemon or
213 * on giving kernel time to init something, or ... wtf?
214 * -- lets give the system some time to wake up
218 // this one works for pndnotifyd, which actually needs INOTIFYH..
221 // check if inotify is awake yet; if not, try waiting for awhile to see if it does
222 pnd_log ( pndn_rem, "Starting INOTIFY test; should be instant, but may take awhile...\n" );
224 if ( ! pnd_notify_wait_until_ready ( 120 /* seconds */ ) ) {
225 pnd_log ( pndn_error, "ERROR: INOTIFY refuses to be useful and quite awhile has passed. Bailing out.\n" );
229 pnd_log ( pndn_rem, "INOTIFY seems to be useful, whew.\n" );
231 // pndnotifyd also waits for user to log in .. pretty excessive, especially since
232 // what if user wants to close the lid while at the log in screen? for now play the
233 // odds as thats pretty unliekly usage scenariom but is clearly not acceptible :/
236 // wait for a user to be logged in - we should probably get hupped when a user logs in, so we can handle
237 // log-out and back in again, with SDs popping in and out between..
238 pnd_log ( pndn_rem, "Checking to see if a user is logged in\n" );
239 char tmp_username [ 128 ];
241 if ( pnd_check_login ( tmp_username, 127 ) ) {
244 pnd_log ( pndn_debug, " No one logged in yet .. spinning.\n" );
247 pnd_log ( pndn_rem, "Looks like user '%s' is in, continue.\n", tmp_username );
251 /* inhale config or die trying
255 // attempt to fetch a sensible default searchpath for configs
256 configpath = pnd_conf_query_searchpath();
258 // attempt to fetch the apps config. since it finds us the runscript
259 pnd_conf_handle evmaph;
261 evmaph = pnd_conf_fetch_by_id ( pnd_conf_evmap, configpath );
264 // couldn't locate conf, just bail
265 pnd_log ( pndn_error, "ERROR: Couldn't locate conf file\n" );
269 /* iterate across conf, stocking the event map
271 void *n = pnd_box_get_head ( evmaph );
274 char *k = pnd_box_get_key ( n );
275 //printf ( "key %s\n", k );
277 if ( strncmp ( k, "keys.", 5 ) == 0 ) {
280 // keys should really push push generic-events onto the table, since they;'re just a special case of them
281 // to make things easier to read
283 // figure out which keycode we're talking about
284 keycode_t *p = keycodes;
285 while ( p -> keycode != -1 ) {
286 if ( strcasecmp ( p -> keyname, k ) == 0 ) {
292 if ( p -> keycode != -1 ) {
293 g_evmap [ g_evmap_max ].key_p = 1; // its a key, not an event
294 g_evmap [ g_evmap_max ].reqs = p; // note the keycode
295 g_evmap [ g_evmap_max ].script = n; // note the script to activate in response
296 pnd_log ( pndn_rem, "Registered key %s [%d] to script %s\n", p -> keyname, p -> keycode, (char*) n );
299 pnd_log ( pndn_warning, "WARNING! Key '%s' is not handled by pndevmapperd yet! Skipping.", k );
302 } else if ( strncmp ( k, "events.", 7 ) == 0 ) {
305 // yes, key events could really be defined in this generic sense, and really we could just let people
306 // put the code and so on right in the conf, but trying to keep it easy on people; maybe should
307 // add a 'generic' section to conf file and just let folks redefine random events that way
308 // Really, it'd be nice if the /dev/input/events could spit out useful text, and just use scripts
309 // to respond without a daemon per se; for that matter, pnd-ls and pnd-map pnd-dotdesktopemitter
310 // should just exist as scripts rather than daemons, but whose counting?
312 // figure out which keycode we're talking about
313 generic_event_t *p = generics;
314 while ( p -> code != -1 ) {
315 if ( strcasecmp ( p -> name, k ) == 0 ) {
321 if ( p -> code != -1 ) {
322 g_evmap [ g_evmap_max ].key_p = 0; // its an event, not a key
323 g_evmap [ g_evmap_max ].reqs = p; // note the keycode
324 g_evmap [ g_evmap_max ].script = n; // note the script to activate in response
325 pnd_log ( pndn_rem, "Registered generic event %s [%d] to script %s\n", p -> name, p -> code, (char*) n );
328 pnd_log ( pndn_warning, "WARNING! Generic event '%s' is not handled by pndevmapperd yet! Skipping.", k );
331 } else if ( strncmp ( k, "pndevmapperd.", 7 ) == 0 ) {
332 // not consumed here, skip silently
334 } else if ( strncmp ( k, "battery.", 8 ) == 0 ) {
335 // not consumed here, skip silently
339 pnd_log ( pndn_warning, "Unknown config key '%s'; skipping.\n", k );
342 n = pnd_box_get_next ( n );
345 if ( pnd_conf_get_as_int ( evmaph, "pndevmapperd.loglevel" ) != PND_CONF_BADNUM ) {
346 pnd_log_set_filter ( pnd_conf_get_as_int ( evmaph, "pndevmapperd.loglevel" ) );
347 pnd_log ( pndn_rem, "config file causes loglevel to change to %u", pnd_log_get_filter() );
350 if ( pnd_conf_get_as_int ( evmaph, "pndevmapperd.minimum_separation" ) != PND_CONF_BADNUM ) {
351 g_minimum_separation = pnd_conf_get_as_int ( evmaph, "pndevmapperd.minimum_separation" );
352 pnd_log ( pndn_rem, "config file causes minimum_separation to change to %u", g_minimum_separation );
356 if ( pnd_conf_get_as_int ( evmaph, "battery.threshold" ) != PND_CONF_BADNUM ) {
357 b_threshold = pnd_conf_get_as_int ( evmaph, "battery.threshold" );
358 pnd_log ( pndn_rem, "Battery threshold set to %u", b_threshold );
360 if ( pnd_conf_get_as_int ( evmaph, "battery.check_interval" ) != PND_CONF_BADNUM ) {
361 b_frequency = pnd_conf_get_as_int ( evmaph, "battery.check_interval" );
362 pnd_log ( pndn_rem, "Battery check interval set to %u", b_frequency );
364 if ( pnd_conf_get_as_int ( evmaph, "battery.blink_interval" ) != PND_CONF_BADNUM ) {
365 b_blinkfreq = pnd_conf_get_as_int ( evmaph, "battery.blink_interval" );
366 pnd_log ( pndn_rem, "Battery blink interval set to %u", b_blinkfreq );
368 if ( pnd_conf_get_as_int ( evmaph, "battery.blink_duration" ) != PND_CONF_BADNUM ) {
369 b_blinkdur = pnd_conf_get_as_int ( evmaph, "battery.blink_duration" );
370 pnd_log ( pndn_rem, "Battery blink duration set to %u", b_blinkdur );
373 if ( pnd_conf_get_as_int ( evmaph, "battery.shutdown_threshold" ) != PND_CONF_BADNUM ) {
374 b_shutdown = pnd_conf_get_as_int ( evmaph, "battery.shutdown_threshold" );
375 pnd_log ( pndn_rem, "Battery shutdown threshold set to %u", b_shutdown );
377 if ( pnd_conf_get_as_char ( evmaph, "battery.shutdown_script" ) != NULL ) {
378 b_shutdown_script = strdup ( pnd_conf_get_as_char ( evmaph, "battery.shutdown_script" ) );
379 pnd_log ( pndn_rem, "Battery shutdown script set to %s", b_shutdown_script );
382 /* do we have anything to do?
384 if ( ! g_evmap_max ) {
385 // uuuh, nothing to do?
386 pnd_log ( pndn_warning, "WARNING! No events configured to watch, so just spinning wheels...\n" );
390 /* set up sigchld -- don't want zombies all over; well, we do, but not process zombies
395 struct sigaction siggy;
396 siggy.sa_handler = sigchld_handler;
397 siggy.sa_mask = ss; /* implicitly blocks the origin signal */
398 siggy.sa_flags = SA_RESTART; /* don't need anything */
399 sigaction ( SIGCHLD, &siggy, NULL );
401 /* set up the battery level warning timers
403 siggy.sa_handler = sigalrm_handler;
404 siggy.sa_mask = ss; /* implicitly blocks the origin signal */
405 siggy.sa_flags = SA_RESTART; /* don't need anything */
406 sigaction ( SIGALRM, &siggy, NULL );
408 if ( set_next_alarm ( b_frequency, 0 ) ) { // check every 'frequency' seconds
409 pnd_log ( pndn_rem, "Checking for low battery every %u seconds\n", b_frequency );
411 pnd_log ( pndn_error, "ERROR: Couldn't set up timer for every %u seconds\n", b_frequency );
414 /* actually try to do something useful
417 // stolen in part from notaz :)
419 // try to locate the appropriate devices
421 int fds [ 8 ] = { -1, -1, -1, -1, -1, -1, -1, -1 }; // 0 = keypad, 1 = gpio keys
424 for ( id = 0; ; id++ ) {
426 char name[256] = { 0, };
429 snprintf ( fname, sizeof ( fname ), "/dev/input/event%i", id );
430 fd = open ( fname, O_RDONLY );
436 if ( ioctl (fd, EVIOCGNAME(sizeof(name)), name ) < 0 ) {
440 pnd_log ( pndn_rem, "%s maps to %s\n", fname, name );
442 if ( strcmp ( name, "omap_twl4030keypad" ) == 0 ) {
444 } else if ( strcmp ( name, "gpio-keys" ) == 0) {
446 } else if ( strcmp ( name, "AT Translated Set 2 keyboard" ) == 0) { // for vmware, my dev environment
448 } else if ( strcmp ( name, "triton2-pwrbutton" ) == 0) {
450 } else if ( strcmp ( name, "ADS784x Touchscreen" ) == 0) {
452 } else if ( strcmp ( name, "vsense66" ) == 0) {
454 } else if ( strcmp ( name, "vsense67" ) == 0) {
457 pnd_log ( pndn_rem, "Ignoring unknown device '%s'\n", name );
464 if (imaxfd < fd) imaxfd = fd;
468 if ( fds [ 0 ] == -1 ) {
469 pnd_log ( pndn_warning, "WARNING! Couldn't find keypad device\n" );
472 if ( fds [ 1 ] == -1 ) {
473 pnd_log ( pndn_warning, "WARNING! couldn't find button device\n" );
476 if ( fds [ 0 ] == -1 && fds [ 1 ] == -1 ) {
477 pnd_log ( pndn_error, "ERROR! Couldn't find either device!\n" );
481 /* loop forever, watching for events
485 struct input_event ev[64];
487 unsigned int max_fd = 3; /* imaxfd */
488 int fd = -1, rd, ret;
494 for (i = 0; i < max_fd /*imaxfd*/; i++) {
495 if ( fds [ i ] != -1 ) {
496 FD_SET( fds [ i ], &fdset );
498 if ( fds [ i ] > imaxfd ) {
505 ret = select ( imaxfd + 1, &fdset, NULL, NULL, NULL );
508 pnd_log ( pndn_error, "ERROR! select(2) failed with: %s\n", strerror ( errno ) );
512 for ( i = 0; i < max_fd; i++ ) {
513 if ( fds [ i ] != -1 && FD_ISSET ( fds [ i ], &fdset ) ) {
518 /* buttons or keypad */
519 rd = read ( fd, ev, sizeof(struct input_event) * 64 );
520 if ( rd < (int) sizeof(struct input_event) ) {
521 pnd_log ( pndn_error, "ERROR! read(2) input_event failed with: %s\n", strerror ( errno ) );
525 for (i = 0; i < rd / sizeof(struct input_event); i++ ) {
527 if ( ev[i].type == EV_SYN ) {
529 } else if ( ev[i].type == EV_KEY ) {
531 // do we even know about this key at all?
532 keycode_t *p = keycodes;
533 while ( p -> keycode != -1 ) {
534 if ( p -> keycode == ev [ i ].code ) {
540 // if we do, hand it off to dispatcher to look up if we actually do something with it
541 if ( p -> keycode != -1 ) {
542 pnd_log ( pndn_debug, "Key Event: key %s [%d] value %d\n", p -> keyname, p -> keycode, ev [ i ].value );
543 dispatch_key ( p -> keycode, ev [ i ].value );
545 pnd_log ( pndn_warning, "Unknown Key Event: keycode %d value %d\n", ev [ i ].code, ev [ i ].value );
548 } else if ( ev[i].type == EV_SW ) {
550 // do we even know about this event at all?
551 generic_event_t *p = generics;
552 while ( p -> code != -1 ) {
553 if ( p -> code == ev [ i ].code ) {
559 // if we do, hand it off to dispatcher to look up if we actually do something with it
560 if ( p -> code != -1 ) {
561 pnd_log ( pndn_debug, "Generic Event: event %s [%d] value %d\n", p -> name, p -> code, ev [ i ].value );
562 dispatch_event ( p -> code, ev [ i ].value );
564 pnd_log ( pndn_warning, "Unknown Generic Event: code %d value %d\n", ev [ i ].code, ev [ i ].value );
568 pnd_log ( pndn_debug, "DEBUG: Unexpected event type %i received\n", ev[i].type );
576 for (i = 0; i < 2; i++) {
577 if ( i != 2 && fds [ i ] != -1 ) {
585 // this should really register the keystate and time, and then another func to monitor
586 // time-passage and check the registered list and act on the event..
587 void dispatch_key ( int keycode, int val ) {
591 // 1 - down (pressed)
592 // 2 - down again (hold)
595 pnd_log ( pndn_rem, "Dispatching Key..\n" );
597 for ( i = 0; i < g_evmap_max; i++ ) {
599 if ( ( g_evmap [ i ].key_p ) &&
600 ( ((keycode_t*) (g_evmap [ i ].reqs)) -> keycode == keycode ) &&
601 ( g_evmap [ i ].script ) )
604 // is this a keydown or a keyup?
607 g_evmap [ i ].keydown_time = time ( NULL );
609 } else if ( val == 0 ) {
612 char holdtime [ 128 ];
613 sprintf ( holdtime, "%d", (int)( time(NULL) - g_evmap [ i ].keydown_time ) );
615 if ( time ( NULL ) - g_evmap [ i ].last_trigger_time >= g_minimum_separation ) {
618 g_evmap [ i ].last_trigger_time = time ( NULL );
620 pnd_log ( pndn_rem, "Will attempt to invoke: %s %s\n", g_evmap [ i ].script, holdtime );
622 if ( ( x = fork() ) < 0 ) {
623 pnd_log ( pndn_error, "ERROR: Couldn't fork()\n" );
628 execl ( g_evmap [ i ].script, g_evmap [ i ].script, holdtime, (char*)NULL );
629 pnd_log ( pndn_error, "ERROR: Couldn't exec(%s)\n", g_evmap [ i ].script );
634 pnd_log ( pndn_rem, "Skipping invokation.. falls within minimum_separation threshold\n" );
640 } // found matching event for keycode
647 void dispatch_event ( int code, int val ) {
650 // LID val decodes as:
654 pnd_log ( pndn_rem, "Dispatching Event..\n" );
656 for ( i = 0; i < g_evmap_max; i++ ) {
658 if ( ( g_evmap [ i ].key_p == 0 ) &&
659 ( ((generic_event_t*) (g_evmap [ i ].reqs)) -> code == code ) &&
660 ( g_evmap [ i ].script ) )
663 // just hand the code to the script (ie: 0 or 1 to script)
664 if ( time ( NULL ) - g_evmap [ i ].last_trigger_time >= g_minimum_separation ) {
668 sprintf ( value, "%d", val );
670 g_evmap [ i ].last_trigger_time = time ( NULL );
672 pnd_log ( pndn_rem, "Will attempt to invoke: %s %s\n", g_evmap [ i ].script, value );
674 if ( ( x = fork() ) < 0 ) {
675 pnd_log ( pndn_error, "ERROR: Couldn't fork()\n" );
680 execl ( g_evmap [ i ].script, g_evmap [ i ].script, value, (char*)NULL );
681 pnd_log ( pndn_error, "ERROR: Couldn't exec(%s)\n", g_evmap [ i ].script );
686 pnd_log ( pndn_rem, "Skipping invokation.. falls within minimum_separation threshold\n" );
690 } // found matching event for keycode
697 void sigchld_handler ( int n ) {
699 pnd_log ( pndn_rem, "---[ SIGCHLD received ]---\n" );
704 pnd_log ( pndn_rem, " SIGCHLD done ]---\n" );
709 unsigned char set_next_alarm ( unsigned int secs, unsigned int usecs ) {
711 // assume that SIGALRM is already being caught, we just set the itimer here
713 struct itimerval itv;
715 // if no timer at all, set the 'current' one so it does something; otherwise
717 getitimer ( ITIMER_REAL, &itv );
719 if ( itv.it_value.tv_sec == 0 && itv.it_value.tv_sec == 0 ) {
720 itv.it_value.tv_sec = secs;
721 itv.it_value.tv_usec = usecs;
724 // set the next timer
725 //bzero ( &itv, sizeof(struct itimerval) );
727 itv.it_interval.tv_sec = secs;
728 itv.it_interval.tv_usec = usecs;
730 // if next-timer is less than current, set current too
731 if ( itv.it_value.tv_sec > itv.it_interval.tv_sec ) {
732 itv.it_value.tv_sec = secs;
733 itv.it_value.tv_usec = usecs;
736 if ( setitimer ( ITIMER_REAL, &itv, NULL /* old value returned here */ ) < 0 ) {
744 void sigalrm_handler ( int n ) {
746 pnd_log ( pndn_debug, "---[ SIGALRM ]---\n" );
748 int batlevel = pnd_device_get_battery_gauge_perc();
750 if ( batlevel < 0 ) {
751 // couldn't read the battery level, so just assume low and make blinks?
752 batlevel = 4; // low, but not cause a shutdown
755 // first -- are we critical yet? if so, shut down!
756 if ( batlevel <= b_shutdown && b_shutdown_script ) {
759 pnd_log ( pndn_error, "CRITICAL BATTERY LEVEL -- shutdown the system down! Invoke: %s\n", b_shutdown_script );
761 if ( ( x = fork() ) < 0 ) {
762 pnd_log ( pndn_error, "ERROR: Couldn't fork()\n" );
767 execl ( b_shutdown_script, b_shutdown_script, (char*)NULL );
768 pnd_log ( pndn_error, "ERROR: Couldn't exec(%s)\n", b_shutdown_script );
774 // is battery warning already active?
778 // is user charging up? if so, stop blinking.
779 // perhaps we shoudl check if charger is connected, and not blink at all in that case..
780 if ( batlevel > b_threshold + 1 /* allow for error in read */ ) {
781 pnd_log ( pndn_debug, "Battery is high again, flipping to non-blinker mode\n" );
783 set_next_alarm ( b_frequency, 0 );
784 pnd_device_set_led_charger_brightness ( 250 );
788 if ( b_active == 1 ) {
790 pnd_log ( pndn_debug, "Blink on\n" );
791 pnd_device_set_led_charger_brightness ( 200 );
792 // set timer to short duration
794 set_next_alarm ( 0, b_blinkdur );
795 } else if ( b_active == 2 ) {
797 pnd_log ( pndn_debug, "Blink off\n" );
798 pnd_device_set_led_charger_brightness ( 10 );
799 // back to longer duration
801 set_next_alarm ( b_blinkfreq, 0 );
808 if ( batlevel <= b_threshold ) {
809 // battery seems low, go to active mode
810 pnd_log ( pndn_debug, "Battery is low, flipping to blinker mode\n" );
812 set_next_alarm ( b_blinkfreq, 0 );