diff options
Diffstat (limited to 'src/drivers/stm32/tone_alarm')
-rw-r--r-- | src/drivers/stm32/tone_alarm/tone_alarm.cpp | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/src/drivers/stm32/tone_alarm/tone_alarm.cpp b/src/drivers/stm32/tone_alarm/tone_alarm.cpp index 167ef30a8..e1409a815 100644 --- a/src/drivers/stm32/tone_alarm/tone_alarm.cpp +++ b/src/drivers/stm32/tone_alarm/tone_alarm.cpp @@ -1,6 +1,6 @@ /**************************************************************************** * - * Copyright (C) 2012 PX4 Development Team. All rights reserved. + * Copyright (C) 2013 PX4 Development Team. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -241,6 +241,8 @@ private: static const unsigned _default_ntunes; static const uint8_t _note_tab[]; + unsigned _default_tune_number; // number of currently playing default tune (0 for none) + const char *_user_tune; const char *_tune; // current tune string @@ -456,6 +458,11 @@ const char * const ToneAlarm::_default_tunes[] = { "O1B8O2G+8E8B8G+8O3E8O2B8O3E8O2B8O3G+8E8B8" "O3G+8O4E4P8E16E16E8E8E8E8E4P8E16E4P8O2E16" "O2E2P64", + "MNT75L1O2G", //arming warning + "MBNT100a8", //battery warning slow + "MBNT255a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8" + "a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8" + "a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8a8", //battery warning fast // XXX why is there a break before a repetition }; const unsigned ToneAlarm::_default_ntunes = sizeof(_default_tunes) / sizeof(_default_tunes[0]); @@ -471,6 +478,7 @@ extern "C" __EXPORT int tone_alarm_main(int argc, char *argv[]); ToneAlarm::ToneAlarm() : CDev("tone_alarm", "/dev/tone_alarm"), + _default_tune_number(0), _user_tune(nullptr), _tune(nullptr), _next(nullptr) @@ -803,8 +811,12 @@ tune_error: // stop (and potentially restart) the tune tune_end: stop_note(); - if (_repeat) + if (_repeat) { start_tune(_tune); + } else { + _tune = nullptr; + _default_tune_number = 0; + } return; } @@ -873,8 +885,17 @@ ToneAlarm::ioctl(file *filp, int cmd, unsigned long arg) _tune = nullptr; _next = nullptr; } else { - // play the selected tune - start_tune(_default_tunes[arg - 1]); + /* don't interrupt alarms unless they are repeated */ + if (_tune != nullptr && !_repeat) { + /* abort and let the current tune finish */ + result = -EBUSY; + } else if (_repeat && _default_tune_number == arg) { + /* requested repeating tune already playing */ + } else { + // play the selected tune + _default_tune_number = arg; + start_tune(_default_tunes[arg - 1]); + } } } else { result = -EINVAL; |