diff options
| -rw-r--r-- | Stomps/stomp_control.py | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/Stomps/stomp_control.py b/Stomps/stomp_control.py new file mode 100644 index 0000000..add3dd8 --- /dev/null +++ b/Stomps/stomp_control.py @@ -0,0 +1,131 @@ +# Code copied to be easy to use as one script + +from datetime import datetime + +class StompCommand: + def __init__(self, action, value): + self.action = action + self.value = value + self.raw_bytes = bytearray(32) + self.encode_bytes() + + def encode_bytes(self): + self.encode_time() + self.encode_action() + self.encode_value() + self.build_last_16_bytes() + + def encode_time(self): + epoch = datetime.now().strftime("%s") + epoch_hex = hex(int(epoch))[2:] + epoch_bytes = bytearray.fromhex(epoch_hex) + epoch_bytes.reverse() + for i in range(4): + self.raw_bytes[i] = epoch_bytes[i] + + def encode_action(self): + self.raw_bytes[9] = 0x00 + if(self.action == "button"): + self.raw_bytes[8] = 0x01 + self.raw_bytes[10] = 0x11 + self.raw_bytes[11] = 0x01 + elif(self.action == "rotary"): + self.raw_bytes[8] = 0x01 + self.raw_bytes[10] = 0x08 + self.raw_bytes[11] = 0x00 + + def encode_value(self): + if(self.value == "pressed"): + self.raw_bytes[12] = 0x01 + elif(self.value == "released"): + self.raw_bytes[12] = 0x00 + elif(self.value == "clock wise"): + self.raw_bytes[12] = 0x01 + elif(self.value == "counter clock"): + self.raw_bytes[12] = 0xff + + def build_last_16_bytes(self): + # build the last 16 bytes + for i in range(6): + self.raw_bytes[16+i] = self.raw_bytes[i] + + def bytes_to_hex(self): + bytes_str = "" + for i in range(len(self.raw_bytes)): + bytes_str = bytes_str + str(self.raw_bytes[i]) + ' ' + return bytes_str + + def __str__(self): + return "Action: " + self.action + "\nValue: " + self.value + "\nBytes: " + self.bytes_to_hex() + +class StompEvent: + def __init__(self, raw_bytes): + self.raw_bytes = raw_bytes + self.action = "unknown" + self.value = "unknown" + self.system_epoch = datetime.now().strftime("%s") + self.system_datetime = datetime.now() + self.decode_bytes() + + def print_bytes(self): + bytes_str = "" + for i in range(len(self.raw_bytes)): + bytes_str = bytes_str + self.raw_bytes[i].encode('hex') + ' ' + print bytes_str + print '---'*32 + + def decode_bytes(self): + self.decode_action() + self.decode_value() + self.decode_time() + + def decode_action(self): + action_byte_1 = self.raw_bytes[10].encode('hex') + action_byte_2 = self.raw_bytes[11].encode('hex') + if(action_byte_1 == "11" and action_byte_2 == "01"): + self.action = "button" + elif(action_byte_1 == "08" and action_byte_2 == "00"): + self.action = "rotary" + + def decode_value(self): + value_byte = self.raw_bytes[12].encode('hex') + if(value_byte == "00"): + self.value = "released" + elif(value_byte == "01"): + if(self.action == "button"): + self.value = "pressed" + elif(self.action == "rotary"): + self.value = "clock wise" + elif(value_byte == "ff"): + self.value = "counter clock" + + def decode_time(self): + # the first 4 bytes form the time + time_bytes = self.raw_bytes[0:4] + time_bytes.reverse() + time_hex = "" + for i in range(len(time_bytes)): + time_hex = time_hex + time_bytes[i].encode('hex') + self.epoch = int(time_hex, 16) + self.date_time = datetime.fromtimestamp(self.epoch) + + def __str__(self): + return "Action: " + self.action + "\nValue: " + self.value + "\nEpoch: " + str(self.epoch) + "\nDatetime: " + str(self.date_time) + +# Open knob_stomp1 to 11, listen for numeric input and switch on input +dev_file_names = [] +for i in range(1,12): + dev_file_names.append('/dev/zencoder/knob_stomp' + str(i)) + +def switch_stomp(selected_stomp): + with open(dev_file_names[selected_stomp-1], 'wb') as file: + press_command = StompCommand("button", "pressed") + file.write(press_command.raw_bytes) + release_command = StompCommand("button", "released") + file.write(release_command.raw_bytes) + +while True: + selected_stomp = int(input("Enter a stomp between 1 and 11: ")) + if(selected_stomp > 0 and selected_stomp < 12): + print "Switching stomp " + str(selected_stomp) + switch_stomp(selected_stomp)
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