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authorJames Meyer <james.meyer@operamail.com>2011-12-07 19:41:34 (GMT)
committerJames Meyer <james.meyer@operamail.com>2011-12-07 19:41:34 (GMT)
commitb63283a213f7cbf279d03e3d88a962dd1ab9793e (patch)
tree5de9adfc6392e8a4c46d2c4b2cdc2dbad4d0e2e6
parent64a341e020ef13f7fdd3af8285f2671d5a013b09 (diff)
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powermate_myth: add ability to control the FE using a geffen powermate.
-rw-r--r--abs/core/powermate_myth/PKGBUILD16
-rw-r--r--abs/core/powermate_myth/powermate-myth.py214
-rw-r--r--abs/core/powermate_myth/powermate.py106
3 files changed, 336 insertions, 0 deletions
diff --git a/abs/core/powermate_myth/PKGBUILD b/abs/core/powermate_myth/PKGBUILD
new file mode 100644
index 0000000..1581477
--- /dev/null
+++ b/abs/core/powermate_myth/PKGBUILD
@@ -0,0 +1,16 @@
+pkgname=powermate_myth
+pkgver=1.0
+pkgrel=1
+arch=('i686')
+pkgdesc="Provides support and sample program for using the powermate with mtythv"
+url=""
+depends=(python2 xdotool)
+source=(powermate-myth.py powermate.py)
+
+build() {
+ cd $startdir/src
+ install -D -m0755 powermate.py $startdir/pkg/usr/LH/bin/powermate.py
+ install -D -m0755 powermate-myth.py $startdir/pkg/usr/LH/bin/powermate-myth.py
+}
+md5sums=('44a03725355ed53d9f81099923d94329'
+ '90bed7b80570ad6e63ebff827830e14b')
diff --git a/abs/core/powermate_myth/powermate-myth.py b/abs/core/powermate_myth/powermate-myth.py
new file mode 100644
index 0000000..85e5165
--- /dev/null
+++ b/abs/core/powermate_myth/powermate-myth.py
@@ -0,0 +1,214 @@
+#!/usr/bin/python2
+
+import powermate
+import time
+import os
+
+EVENT_BUTTON_PRESS = 1
+EVENT_RELATIVE_MOTION = 2
+
+
+button_pressed = False
+single_tap = False
+mode = "nav"
+
+current_event=(0,0,time.time())
+last_event=current_event
+skipped_event = 0
+pressed_time = 0
+button_held = False
+led_brightness = 255
+#pm = powermate.PowerMate("/dev/powermate")
+
+pm = powermate.PowerMate()
+pm.SetLEDState(led_brightness,0,0,0,0)
+
+
+def runcmd(cmd):
+# print cmd
+ os.system(cmd)
+
+
+def volume_action(action):
+ global mode
+ global led_brightness
+ if action == "L" :
+ print "Volume down"
+
+ if action == "R" :
+ print "Volume UP"
+
+ if action == "tap" :
+ print "toggle mute"
+
+ if action == "double_tap" :
+ mode = "nav"
+ led_brightness = 500
+ print "mode is now nav"
+
+ return
+
+
+def nav_action(action):
+ global mode
+ global led_brightness
+ keycmd = '''xdotool search --name "Mythtv Frontend" key %s'''
+ if action == "L" :
+ #print "prev"
+ cmd = keycmd %"Up"
+ runcmd(cmd)
+
+ if action == "R" :
+ #print "next"
+ cmd = keycmd %"Down"
+ runcmd(cmd)
+
+ if action == "LP" :
+ #print "back"
+ cmd = keycmd %"Left"
+ runcmd(cmd)
+
+ if action == "RP" :
+ #print "tab"
+ cmd = keycmd %"Right"
+ runcmd(cmd)
+
+
+ if action == "tap" :
+ #print "select"
+ cmd = keycmd %"Return"
+ runcmd(cmd)
+
+ if action == "double_tap" :
+ mode = "volume"
+ led_brightness = 10
+ print "mode is now vol"
+
+ if action == "button_held" :
+ cmd = keycmd %"Escape"
+ runcmd(cmd)
+
+
+
+ return
+
+
+
+
+def act_on_event(action):
+
+ if mode == "volume":
+ volume_action(action)
+
+ elif mode == "nav":
+ nav_action(action)
+
+
+
+
+event_stack=[current_event]
+while 1:
+ #process_events = True
+ reset_lastevent = False
+ event = pm.WaitForEvent(2)
+ # print event
+ if event:
+ #event that happens after every button push, can be thrown away.
+ if event[2] == 0:
+ continue
+
+
+ elif single_tap:
+ pressed_diff = time.time() - pressed_time
+ #This takes care of the holding down the button for X amount of time
+ #print event, button_pressed, pressed_diff, current_event
+ #if pressed_diff >= 2 and button_pressed and current_event[0] == EVENT_BUTTON_PRESS:
+ if pressed_diff >= 2 and button_pressed :
+ act_on_event("button_held")
+ single_tap = False
+ pressed_time = 0
+ button_pressed = False
+ last_event_time = time.time()
+ last_event=(0,0,time.time())
+ pm.SetLEDState(led_brightness,0,0,0,0)
+ #print "resetting last event:", last_event
+
+
+ #This handles a single press of the button.
+ elif not button_pressed :
+ act_on_event("tap")
+ single_tap = False
+ last_event_time = time.time()
+ last_event=(0,0,time.time())
+
+ if event:
+ #print "processing:" , event
+ current_event = event[2],event[4],time.time()
+
+ last_event_time = last_event[2]
+ current_event_time = current_event[2]
+
+ last_event_only = last_event[0], last_event[1]
+ current_event_only = current_event[0], current_event[1]
+
+ repeat_rate = 10
+ repeat_time = .50
+
+ if last_event_only == current_event_only and current_event[0] == EVENT_RELATIVE_MOTION :
+ #check for time diff
+ event_time_diff = current_event_time - last_event_time
+
+ if skipped_event <= repeat_rate and event_time_diff <= repeat_time:
+ skipped_event = skipped_event + 1
+ #print "skipped a repeat event : %s" %skipped_event
+ continue
+ #event occured, reset skip counter
+ skipped_event = 0
+
+ #rotate dial
+ if current_event[0] == EVENT_RELATIVE_MOTION:
+ reset_lastevent = True
+ single_tap = False
+ if current_event[1] >= 0 :
+ if button_pressed :
+ #print "dial turned Counter clockwise and button is pressed"
+ act_on_event("RP")
+ else:
+ #print "dial turned Counter clockwise"
+ act_on_event("R")
+
+ if current_event[1] <=0 :
+ if button_pressed :
+ #print "dial turned clockwise and button is pressed"
+ act_on_event("LP")
+ else:
+ #print "dial turned clockwise"
+ act_on_event("L")
+
+
+ #button was pushed
+ if current_event[0] == EVENT_BUTTON_PRESS :
+ pm.SetLEDState(0,0,0,0,0)
+ if current_event[1] == 1:
+ button_pressed = True
+ pressed_time = current_event_time
+ tap_diff = current_event_time - last_event_time
+ #double tap
+ if tap_diff < 0.2 and last_event[0] == EVENT_BUTTON_PRESS:
+ act_on_event("double_tap")
+ single_tap = False
+ else:
+ single_tap = True
+ reset_lastevent = True
+
+ #button was released
+ elif current_event[1] == 0:
+ button_pressed = False
+ pressed_time = 0
+ pm.SetLEDState(led_brightness,0,0,0,0)
+
+ if reset_lastevent:
+ last_event = current_event
+
+
+
diff --git a/abs/core/powermate_myth/powermate.py b/abs/core/powermate_myth/powermate.py
new file mode 100644
index 0000000..8e40078
--- /dev/null
+++ b/abs/core/powermate_myth/powermate.py
@@ -0,0 +1,106 @@
+#!/usr/bin/env python
+
+import select
+import os
+import fcntl
+import struct
+import exceptions
+
+#struct input_event {
+# struct timeval time; = {long seconds, long microseconds}
+# unsigned short type;
+# unsigned short code;
+# unsigned int value;
+#};
+
+input_event_struct = "@llHHi"
+input_event_size = struct.calcsize(input_event_struct)
+
+EVENT_BUTTON_PRESS = 1
+EVENT_RELATIVE_MOTION = 2
+RELATIVE_AXES_DIAL = 7
+BUTTON_MISC = 0x100
+
+def report(x):
+ sys.stderr.write(x + "\n")
+
+class PowerMate:
+ def __init__(self, filename = None):
+ self.handle = -1
+ if filename:
+ if not self.OpenDevice(filename):
+ raise exceptions.RuntimeError, 'Unable to find powermate'
+ else:
+ ok = 0
+ for d in range(0, 16):
+ if self.OpenDevice("/dev/input/event%d" % d):
+ ok = 1
+ break
+ if not ok:
+ raise exceptions.RuntimeError, 'Unable to find powermate'
+ self.poll = select.poll()
+ self.poll.register(self.handle, select.POLLIN)
+ self.event_queue = [] # queue used to reduce kernel/userspace context switching
+
+ def __del__(self):
+ if self.handle >= 0:
+ self.poll.unregister(self.handle)
+ os.close(self.handle)
+ self.handle = -1
+ del self.poll
+
+ def OpenDevice(self, filename):
+ try:
+ self.handle = os.open(filename, os.O_RDWR)
+ if self.handle < 0:
+ return 0
+ name = fcntl.ioctl(self.handle, 0x80ff4506, chr(0) * 256) # read device name
+ name = name.replace(chr(0), '')
+ if name == 'Griffin PowerMate' or name == 'Griffin SoundKnob':
+ fcntl.fcntl(self.handle, fcntl.F_SETFL, os.O_NDELAY)
+ return 1
+ os.close(self.handle)
+ self.handle = -1
+ return 0
+ except exceptions.OSError:
+ return 0
+
+ def WaitForEvent(self, timeout): # timeout in seconds
+ if len(self.event_queue) > 0:
+ return self.event_queue.pop(0)
+ if self.handle < 0:
+ return None
+ r = self.poll.poll(int(timeout*100))
+ if len(r) == 0:
+ return None
+ return self.GetEvent()
+
+ def GetEvent(self): # only call when descriptor is readable
+ if self.handle < 0:
+ return None
+ try:
+ data = os.read(self.handle, input_event_size * 32)
+ while data != '':
+ self.event_queue.append(struct.unpack(input_event_struct, data[0:input_event_size]))
+ data = data[input_event_size:]
+ return self.event_queue.pop(0)
+ except exceptions.OSError, e: # Errno 11: Resource temporarily unavailable
+ #if e.errno == 19: # device has been disconnected
+ # report("PowerMate disconnected! Urgent!");
+ return None
+
+ def SetLEDState(self, static_brightness, pulse_speed, pulse_table, pulse_on_sleep, pulse_on_wake):
+ static_brightness &= 0xff;
+ if pulse_speed < 0:
+ pulse_speed = 0
+ if pulse_speed > 510:
+ pulse_speed = 510
+ if pulse_table < 0:
+ pulse_table = 0
+ if pulse_table > 2:
+ pulse_table = 2
+ pulse_on_sleep = not not pulse_on_sleep # not not = convert to 0/1
+ pulse_on_wake = not not pulse_on_wake
+ magic = static_brightness | (pulse_speed << 8) | (pulse_table << 17) | (pulse_on_sleep << 19) | (pulse_on_wake << 20)
+ data = struct.pack(input_event_struct, 0, 0, 0x04, 0x01, magic)
+ os.write(self.handle, data)