writing current status to /tmp/status

chch-power.py

@@ -2,7 +2,9 @@ import pifacedigitalio
 import pifacecommon.mcp23s17
 import time
 from subprocess import call
+import sys
 
+# dirty workaround to disable reset of output pins
 def init_board_no_power_off(self):
     ioconfig = (
         pifacecommon.mcp23s17.BANK_OFF |
@@ -27,7 +29,7 @@ def init_board_no_power_off(self):
 
 setattr(pifacedigitalio.PiFaceDigital, 'init_board', init_board_no_power_off)
 
-button_count = 8
+button_count = 2
 longpress_delay = 0.4
 verylongpress_delay = 2
 shortpress_count_max_delay = 0.5
@@ -37,10 +39,23 @@ pin_last_shortpress = [0]*button_count
 pin_shortpress_count = [0]*button_count
 pifacedigital = pifacedigitalio.PiFaceDigital()
 
+def chch_status_output(pfd):
+    f = open("/root/chch-power/status", 'w')
+    status = "geschlossen"
+    for i in range(button_count):
+        if pfd.output_pins[i].value != 0:
+            status = "offen"
+            break
+    try:
+        f.truncate(0)
+        f.write(status)
+    except OSError:
+        sys.stderr("Can not write to status file\n")
+
 def switch_pressed(event):
     pin_last_rise_date[event.pin_num] = 0
     time.sleep(0.02)
-    if pifacedigitalio.digital_read(event.pin_num) != 0:
+    if event.chip.input_pins[event.pin_num].value != 0:
         pin_last_rise_date[event.pin_num] = time.time()
 
 def switch_unpressed(event):
@@ -57,6 +72,7 @@ def switch_unpressed(event):
 # toggle current room's power with a short and a long press
 # call a script with two short and a long press
 def switch_longpressed(event):
+    chch_status_output()
     shortpress_delay = pin_last_rise_date[event.pin_num] - pin_last_shortpress[event.pin_num]
     if shortpress_delay > inter_press_max_delay:
         pin_shortpress_count[event.pin_num] = 0
@@ -65,10 +81,12 @@ def switch_longpressed(event):
     elif pin_shortpress_count[event.pin_num] == 2:
         if event.pin_num == 0:
             call(["/root/chch-power/light.sh"])
+    chch_status_output(event.chip)
 
 # switch all power off with a very long press
 # switch all power on with a short and a very long press
 def switch_verylongpressed(event):
+    chch_status_output()
     shortpress_delay = pin_last_rise_date[event.pin_num] - pin_last_shortpress[event.pin_num]
     if shortpress_delay > inter_press_max_delay:
         pin_shortpress_count[event.pin_num] = 0
@@ -77,6 +95,7 @@ def switch_verylongpressed(event):
     elif pin_shortpress_count[event.pin_num] == 1:
         for i in range(button_count):
             event.chip.output_pins[i].turn_on()
+    chch_status_output(event.chip)
 
 def switch_shortpressed(event):
     now = time.time()
@@ -89,12 +108,14 @@ def switch_shortpressed(event):
     else:
         pin_shortpress_count[event.pin_num] += 1
     pin_last_shortpress[event.pin_num] = now
+    chch_status_output(event.chip)
     print(["count:", pin_shortpress_count[event.pin_num]])
 
 if __name__ == "__main__":
-    pifacedigitalio.init()
     listener = pifacedigitalio.InputEventListener(chip=pifacedigital)
     for i in range(button_count):
         listener.register(i, pifacedigitalio.IODIR_ON, switch_pressed)
         listener.register(i, pifacedigitalio.IODIR_OFF, switch_unpressed)
     listener.activate()
+    pfd = pifacedigitalio.PiFaceDigital()
+    chch_status_output(pfd)