class HWTest:
def __init__(self):
test_mode = False
self.e = Events(( 'Platform', 'CtrlTurn', 'CtrlPress', 'VolKnob', 'Audio', 'RemotePress', 'Streamer'))
""" Setup the event callbacks """
self.e.VolKnob += self.VolumeChange # when the volume knob, remote or switch is changed
self.e.CtrlTurn += self.SourceChange # when the control knob, remote or switch is pressed
self.e.CtrlPress += self.defaultAction # when when the control knob is pressed start the menu options
self.e.Platform += self.PlatformAction # when the system detects a change to be acted on , eg Shutdown
self.e.RemotePress += self.RemoteAction # when the remote controller is pressed
self.e.Audio += self.AudioAction # respond to a new sample, or audio silence
self.e.Streamer += self.StreamerAction # respond to a new sample, or audio silence
self.platform = Platform(self.e)
if test_mode:
self.display = self.platform.internaldisplay # this is used in test modes
else:
self.display = self.platform.frontdisplay
self.platform.powerAudio('on')
def defaultAction(self,e):
print("HWTest.defaultAction> event", e)
def VolumeChange(self, e='startVol'):
print("VolumeChange> event", e)
if e == 'vol_change':
self.platform.detectVolChange()
elif e =='mute':
self.platform.mute() #mute the audio board
elif e =='unmute':
self.platform.unmute() #unmute the audio board
def RemoteAction(self, e):
print("RemoteAction: received event<%s>" % e)
if e == 'volume_up':
self.platform.volumeUp()
elif e =='volume_down':
self.platform.volumeDown()
elif e =='mute':
self.platform.toggleMute()
elif e == 'shutdown':
self.PlatformAction('shutdown')
elif e =='forward':
self.events.CtrlTurn('clockwise')
elif e =='back':
self.events.CtrlTurn('anticlockwise')
elif e =='stop':
self.events.CtrlPress('down')
elif e =='pause':
self.platform.streamerpause()
elif e =='play':
self.platform.streamerplay()
else:
print("Controller.RemoteAction> unknown event <%s>" % e)
def SourceChange(self, e):
print("SourceChange> event", e)
if e == 'clockwise':
self.platform.nextSource()
elif e == 'anticlockwise':
self.platform.prevSource()
def AudioAction(self, e):
print("AudioAction> event ",e)
if e == 'silence_detected':
self.platform.mute()
elif e == 'signal_detected':
self.platform.unmute()
elif e == 'capture':
# if self.audioready>0:
# print("Controller.AudioAction> %d sample buffer underrun, dump old data " % self.audioready)
self.platform.process()
self.audioready +=1
def PlatformAction(self, e='error'):
print("PlatformAction> event ", e)
def StreamerAction(self, e):
print("Controller.StreamerAction> event ", e)
if e == 'new_track' or e == 'start':
print("Controller.StreamerAction> new track - pop up display ", e)
elif e == 'stop':
print("Controller.StreamerAction> track stopped - display nothing new")
self.platform.clear_track()
elif e =='trackNotified':
print("Controller.StreamerAction> track notification timeout")
""" use the platform API to test each of the HW functions """
def main(self):
logic = self.platform.sourceLogic()
chlogic = self.platform.chLogic()
status = self.platform.readAudioBoardState()
chchanged = True # display status first time around
while True:
line = GetLine()
if line:
print("pressed>",line)
if line == "q":
return
elif line >= "0" and line <= "5":
ch = int(line)
print("Channel=", ch, " source=", logic[ch])
self.platform.setSource(logic[ch])
chchanged = True
elif line == "g":
self.platform.gain(not status['gain'])
chchanged = True
elif line == "m":
self.platform.volKnobEvent(RotaryEncoder.BUTTONDOWN)
chchanged = True
elif line == "s":
print("AudioBoard>", self.platform.readAudioBoardState())
chchanged = True
self.display.draw_status(self.platform.volume_db, \
self.platform.activeSourceText, \
self.platform.chid, \
self.platform.muteState, self.platform.gainState, self.platform.phonesdetectState) # this will just be the diagnostics in time
time.sleep(0.005)
class Controller:
""" Main control logic managing events and callbacks """
# timer constants
volchangeTime = 2.0
srcChangeTime = 2.0
iconMoveTime = 0.2
menuTime = 7.0
welcomeTime = 3.0
screensaveTime= 6.0
shutdownTime = 1.0 # slight pause to ensure the shutdown screen is displayed
trackchangeTime= 7.0
recordTime = 7.0
loopdelay = 0.0001
def __init__(self, test_mode=False):
self.test_mode = test_mode
""" Setup the events """
self.events = Events(( 'Platform', 'CtrlTurn', 'CtrlPress', 'VolKnob', 'Audio', 'RemotePress', 'Streamer'))
""" Setup the HW, Displays and audio processing """
self.platform = Platform(self.events)
if test_mode:
display = self.platform.internaldisplay # this is used in test modes
else:
display = self.platform.frontdisplay
""" Setup the Timer events """
self.volChangeTimer = Timer(Controller.volchangeTime, self.VolumeChange, ['stopVol'], 'volChangeTimer' )
self.srcChangeTimer = Timer(Controller.srcChangeTime, self.SourceChange, ['stopCtrl'], 'srcChangeTimer' )
self.iconMoveTimer = Timer(Controller.iconMoveTime, self.MoveIcon, ['iconTimeout'] , 'iconMoveTimer')
self.menuTimer = Timer(Controller.menuTime, self.MenuAction, ['endmenu'] , 'menuTimer')
self.screensaveTimer = Timer(Controller.screensaveTime, self.ScreenSave, ['start_screensave'] , 'screensaveTimer')
self.welcomeTimer = Timer(Controller.welcomeTime, self.Welcomed, ['welcomeTimeout'], 'welcomeTimer' )
self.shutdownTimer = Timer(Controller.shutdownTime, self.platform.poweroff, ['shutdownTimeout'], 'shutdownTimer' )
self.trackChangeTimer= Timer(Controller.trackchangeTime, self.StreamerAction, ['trackNotified'], 'trackChangeTimer')
self.recordTimer = Timer(Controller.recordTime, self.AudioAction, ['recordNotified'], 'recordTimer')
""" Setup the event callbacks """
self.events.VolKnob += self.VolumeChange # when the volume knob, remote or switch is changed
self.events.CtrlTurn += self.SourceChange # when the control knob, remote or switch is pressed
self.events.CtrlPress += self.MenuAction # when when the control knob is pressed start the menu options
self.events.Platform += self.PlatformAction # when the system detects a change to be acted on , eg Shutdown
self.events.RemotePress += self.RemoteAction # when the remote controller is pressed
self.events.Audio += self.AudioAction # respond to a new sample, or audio silence
self.events.Streamer += self.StreamerAction # respond to a new sample, or audio silence
"""Set up the screen for inital Mode"""
self.baseScreen = 'spectrum'
self.preScreenSaver = self.baseScreen
""" Set up the screen objects to be used """
self.screens = {} # dict for the screen objects
self.screenList = {'main' : { 'class' : MainScreen, 'base' : 'yes', 'title' : '1/3 Oct Spectrum Analyser, Dial & source' },
'start' : { 'class' : WelcomeScreen, 'base' : 'no', 'title' : 'welcome' },
'volChange' : { 'class' : VolChangeScreen, 'base' : 'no', 'title' : 'Incidental volume change indicator' },
# 'fullSpectrum' : { 'class' : FullSpectrumScreen, 'base' : 'yes', 'title' : '1/6 Octave Spectrum Analyser' },
'StreamerMeta' : { 'class' : PlayerScreen, 'base' : 'yes', 'title' : 'Track data, volume and source' },
'trackChange' : { 'class' : TrackScreen, 'base' : 'no', 'title' : 'New Track data' },
'stereoSpectrum' :{'class' : StereoSpectrumScreen, 'base' : 'yes', 'title' : 'Stereo Spectrum Analyser' },
'VUMeters' : { 'class' : MetersAScreen, 'base' : 'yes', 'title' : 'Stereo VU Meters' },
'shutdown' : { 'class' : ShutdownScreen, 'base' : 'no', 'title' : 'end' },
'sourceVol' : { 'class' : SourceVolScreen,'base' : 'no', 'title' : 'Source Icons & Volume Dial' },
'screenTitle' : { 'class' : ScreenTitle, 'base' : 'no', 'title' : 'Displays screen titles for menu' },
'screenSaver' : { 'class' : ScreenSaver, 'base' : 'no', 'title' : 'all gone quiet' },
'sourceVUVol' : { 'class' : SourceVUVolScreen, 'base' : 'yes', 'title' : ' Source Icons, VU & Vol Dial' },
'spectrum' : { 'class' : SpectrumScreen, 'base' : 'yes', 'title' : ' left channel spectrum and volume'},
'VUScreen' : { 'class' : VUScreen, 'base' : 'yes', 'title' : ' horizontal VU'},
'VUVertScreen' : { 'class' : VUVScreen, 'base' : 'yes', 'title' : ' vertical VU'},
'RecordScreen' : { 'class' : RecordingScreen, 'base' : 'no', 'title' : ' recording'},
'recordFinishScreen' : { 'class' : RecordFinishScreen, 'base' : 'no', 'title' : ' record_end'}
}
for i, (name, c) in enumerate(self.screenList.items()):
print(("Controller.__init__> screen %s %s" % (name,c)))
self.screens.update( {name : c['class'](self.platform, display) })
print(("Controller.__init__> screen %s initialised OK" % name))
""" Menu functionality """
self.menuMode = False
menuSequence = []
for name, c in self.screenList.items():
if c['base'] == 'yes':
menuSequence.append( name )
self.screenmenu = ListNext(menuSequence, self.baseScreen)
print("Controller.__init__> all OK", self.screenmenu)
def startAction(self):
self.welcomeTimer.start()
self.setScreen('start')
self.audioready = 0
self.platform.start_hw()
def stopAction(self):
self.platform.stop()
def checkScreen(self, basis):
""" return the current screen object to run """
Timer.checkTimers()
if self.menuMode:
self.screens['screenTitle'].draw( basis, self.screenList[self.activeScreen]['title'] )
return self.screens[self.activeScreen]
def setScreen(self, s):
self.activeScreen = s
def VolumeChange(self, e='startVol'):
if e == 'vol_change':
self.volChangeTimer.start()
self.activeScreen= 'volChange'
self.platform.detectVolChange()
elif e =='stopVol':
self.activeScreen= self.baseScreen
elif e =='mute':
self.platform.mute() #mute the audio board
elif e =='unmute':
self.platform.unmute() #unmute the audio board
elif e =='togglemute':
self.platform.invertMute() #unmute the audio board
elif e =='Button up':
#detected that the mute button has raised - no action
pass
else:
print("Controller.setVolumeChange> unknown event", e)
def RemoteAction(self, e):
print("Controller.RemoteAction: received event<%s>" % e)
if e == 'volume_up':
self.platform.volumeUp()
elif e =='volume_down':
self.platform.volumeDown()
elif e =='mute':
self.platform.toggleMute()
elif e == 'shutdown':
self.PlatformAction('shutdown')
elif e =='forward':
self.events.CtrlTurn('clockwise')
elif e =='back':
self.events.CtrlTurn('anticlockwise')
elif e =='stop':
self.events.CtrlPress('down')
elif e =='pause':
self.platform.streamerpause()
elif e =='record':
if self.platform.recordingState:
self.platform.stop_recording()
else:
self.activeScreen= 'RecordScreen'
self.platform.start_recording()
else:
print("Controller.RemoteAction> unknown event <%s>" % e)
def MoveIcon(self,e):
if self.activeScreen== 'sourceVol' or self.activeScreen== 'sourceVUVol':
# print "MoveIcon>", e, self.activeScreen
if e == 'iconTimeout':
self.platform.nextIcon()
self.iconMoveTimer.start()
elif e == 'startIcons':
self.iconMoveTimer.start()
# else:
# self.iconMoveTimer.cancel()
def SourceChange(self, e):
if e == 'clockwise':
self.activeScreen= 'sourceVol'
self.MoveIcon('startIcons') # get the icons moving is not already
self.srcChangeTimer.start()
self.events.CtrlPress -= self.MenuAction
# self.platform.mute()
self.platform.nextSource()
elif e == 'anticlockwise':
self.activeScreen= 'sourceVol'
self.MoveIcon('startIcons') # get the icons moving is not already
self.srcChangeTimer.start()
self.events.CtrlPress -= self.MenuAction
# self.platform.mute()
self.platform.prevSource()
elif e =='stopCtrl':
self.activeScreen = self.baseScreen
self.events.CtrlPress += self.MenuAction
else:
print("Controller.SourceChange> unknown event", e)
def Welcomed(self, e):
self.activeScreen= self.baseScreen
def ScreenSave(self, e):
print("Platform: ScreenSave: event %s, screen %s" % (e,self.activeScreen))
if e == 'time_screensave':
if not self.screensaveTimer.is_alive():
self.screensaveTimer.start()
elif e == 'cancel_screensave':
self.screensaveTimer.cancel()
if self.activeScreen == 'screenSaver':
self.activeScreen = self.preScreenSaver
elif e == 'start_screensave':
if self.activeScreen != 'screenSaver':
self.preScreenSaver = self.activeScreen
self.activeScreen = 'screenSaver'
else:
print(("Platform: ScreenSave: event not recognised ", e))
def MenuAction(self, e):
if e == 'startmenu':
self.startMenu()
elif e == 'down':
if self.menuMode:
self.endMenu()
else:
self.startMenu()
elif e == 'endmenu':
self.endMenu()
elif e == 'anticlockwise':
self.menuTimer.start()
self.menuPrev()
self.MoveIcon('startIcons') # get the icons moving is not already
# print "Controller.MenuAction> prev screen", self.activeScreen
if e == 'clockwise':
self.menuTimer.start()
self.menuNext()
self.MoveIcon('startIcons') # get the icons moving is not already
# print "Controller.MenuAction> next screen", self.activeScreen
def AudioAction(self, e):
if e == 'silence_detected':
self.platform.mute()
self.ScreenSave('time_screensave')
elif e == 'signal_detected':
self.platform.unmute()
self.ScreenSave('cancel_screensave')
elif e == 'capture':
# if self.audioready>0:
# print("Controller.AudioAction> %d sample buffer underrun, dump old data " % self.audioready)
self.platform.process()
self.audioready +=1
elif e == 'recording_stopped':
self.recordTimer.start()
self.activeScreen= 'recordFinishScreen'
elif e == 'recordNotified':
self.activeScreen= self.baseScreen
else:
print("Controller.AudioAction> unknown event ",e)
def startMenu(self):
self.menuMode = True
self.events.CtrlTurn -= self.SourceChange #when the control knob or switch is pressed
self.events.CtrlTurn += self.MenuAction #when the control knob or switch is pressed
self.menuTimer.start()
def endMenu(self):
self.menuMode = False
self.menuTimer.cancel()
self.events.CtrlTurn += self.SourceChange #when the control knob or switch is pressed
self.events.CtrlTurn -= self.MenuAction #when the control knob or switch is pressed
def menuPrev(self):
self.baseScreen = self.screenmenu.prev
self.activeScreen = self.baseScreen
print("Controller.menuPrev> active screen %s" % (self.activeScreen))
return self.screenmenu.curr
def menuNext(self):
self.baseScreen = self.screenmenu.next
self.activeScreen = self.baseScreen
print("Controller.menuPrev> active screen %s" % (self.activeScreen))
return self.screenmenu.curr
def SystemChange(self, e='error'):
print("Controller.SystemChange> event ", e)
def PlatformAction(self, e='error'):
if e == 'shutdown':
self.activeScreen= 'shutdown'
Timer.cancel_all()
self.shutdownTimer.start()
print("Controller.Platform> event ", e)
elif e == 'phones_in':
self.platform.mute()
elif e == 'phones_out':
self.platform.unmute()
elif e == 'exit':
exit() # this is a debug mode to terminate execution from the keyboard
def StreamerAction(self, e):
print("Controller.StreamerAction> event ", e)
if e == 'new_track' or e == 'start':
print("Controller.StreamerAction> new track - pop up display ", e)
self.trackChangeTimer.start()
self.activeScreen= 'trackChange'
elif e == 'stop':
print("Controller.StreamerAction> track stopped - display nothing new")
self.platform.clear_track()
elif e =='trackNotified':
print("Controller.StreamerAction> track notification timeout")
self.activeScreen= self.baseScreen
else:
print("Controller.StreamerAction> unknown event ", e)
"""
This is where execution starts..
configure the HW & Display objects
set up the event handling which controls the display Mode(ie which screen)
run the Display in an infinite loop
"""
def run(self):
print("Controller.run> preDAC startup configured at ", time.gmtime())
self.startAction()
self.audioready = 0
t = time.time()
""" loop around updating the screen and responding to events """
while(True):
# self.platform.captureAudio() # should become event driven
""" return the current screen object to run """
Timer.checkTimers()
self.platform.checkKeys()
if self.platform.nohw: self.audioready = 1
if self.audioready>0:
screen = self.screens[self.activeScreen]
if self.test_mode:
self.platform.internaldisplay.draw(screen) # this will just be the diagnostics in time
# self.platform.internaldisplay.draw_status(self.platform.volume_db, \
# self.platform.activeSourceText, \
# self.platform.chid, \
# self.platform.muteState, self.platform.gainState, self.platform.phonesdetectState) # this will just be the diagnostics in time
else:
self.platform.frontdisplay.draw(screen)
# if self.platform.internaldisplay is not None:
# self.platform.internaldisplay.draw_status(self.platform.volume_db, \
# self.platform.activeSourceText, \
# self.platform.chid, \
# self.platform.muteState, self.platform.gainState, self.platform.phonesdetectState) # this will just be the diagnostics in time
self.audioready = 0
# print("run> waited for audio: waited", 1000*(time.time()-t))
t = time.time()
else:
# print("run> waiting for audio: waited", 1000*(time.time()-t))
time.sleep(Controller.loopdelay)
print("Controller.run> terminated")
