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#!/usr/bin/env python3
"""
Open Sound Control send/recieve daemon for Tascam Firewire control surface
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
:copyright: Copyright (c) 2012-2014 Scott Bahling
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as
published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program (see the file COPYING); if not, write to the
Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
:license: GPL-2.0, see COPYING for details
"""
import argparse
import string
import time
import threading
from pathlib import Path
import strips
import fw_1884_buttons
import gi
gi.require_version('Hinawa', '2.0')
from gi.repository import Hinawa # noqa: E402
from hinawa_utils.tscm.tscm_console_unit import TscmConsoleUnit # noqa: E402
bits32 = '{:032b}'.format
current_bank = 1
more_banks_up = False
more_banks_down = False
def check_bitR2L(data, bit):
return bool(data & (0b1 << bit))
class RunningStatusThread():
def __init__(self, console, interval=1):
""" Constructor
:type interval: int
:param interval: Check interval, in seconds
"""
self.interval = interval
thread = threading.Thread(target=self.run, args=(console))
thread.daemon = True # Daemonize thread
thread.start() # Start the execution
self.callbacks = set()
self.last_status = []
def add_callback(self, obj):
self.callbacks.add(obj)
def remove_callback(self, obj):
self.callbacks.remove(obj)
def fetch_status_values(self, quadlets=None, first_bit=0, last_bit=32):
if quadlets is None:
quadlets = [i for i in range(0, 16)]
def getvalue(bits):
# reverse the bit order before slicing so the index '0' is the LSB
# and reverse back before converting to int
return int(bits32(bits)[::-1][first_bit:last_bit][::-1], 2)
values = [getvalue(self.last_status[q]) for q in quadlets]
if len(values) == 1:
return values[0]
return values
def run(self, console):
""" Method that runs forever """
while True:
if not self.callbacks:
continue
try:
self.last_status = console.unit.get_status()
except Exception:
continue # we should emit warning or error here!
for callback in self.callbacks:
callback.call(self.fetch_status_values(**callback.args))
time.sleep(self.interval)
class Console():
def __init__(self, card):
fullpath = seek_snd_unit_path(card)
if fullpath:
self.unit = TscmConsoleUnit(fullpath)
else:
exit()
self.state = {}
self.strips = strips.init_strips(self.unit)
self.buttons = fw_1884_buttons.init_buttons(self)
self.unit.connect('control', self.handle_control)
status_thread = RunningStatusThread(self) # noqa F841
def handle_bit_flags(self, index, before, after):
changed = before ^ after
for bit in [i for i, b in enumerate(bits32(changed)) if int(b)]:
high = check_bitR2L(after, bit)
button = self.buttons[index][int(bit)]
if button is None:
print('unhandled control bit {}:{}'.format(index, bit))
continue
if high:
button.release()
else:
button.press()
def handle_control(self, index, before, after):
print('{0:02d}: {1:08x} {2:08x}'.format(index, before, after))
if index in [5, 6, 7, 8, 9]:
self.handle_bit_flags(index, before, after)
return
if index in [10, 11, 12, 13, 14, 15]:
self.handle_encoder(index, before, after)
return
def _check_hexadecimal(literal):
if literal.find('0x') == 0:
literal = literal[2:]
if len(literal) != 16:
return False
for character in literal:
if character not in string.hexdigits:
return False
else:
return True
def _seek_snd_unit_from_guid(guid):
for fullpath in Path('/dev/snd').glob('hw*'):
fullpath = str(fullpath)
try:
unit = Hinawa.SndUnit()
unit.open(fullpath)
if unit.get_property('guid') == guid:
return fullpath
except Exception as e:
pass
finally:
del unit
return None
def seek_snd_unit_path(card_id):
# Assume as sound card number if it's digit literal.
if card_id.isdigit():
return '/dev/snd/hwC{0}D0'.format(card_id)
# Assume as GUID on IEEE 1394 bus if it's hexadecimal literal.
elif _check_hexadecimal(card_id):
return _seek_snd_unit_from_guid(int(card_id, base=16))
return None
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument("--card", default="1",
help="number of the ALSA sound card")
parser.add_argument("--listen-ip", default="127.0.0.1",
help="The ip to listen on")
parser.add_argument("--listen-port", type=int, default=5005,
help="The port to listen on")
parser.add_argument("--ip", default="127.0.0.1",
help="The ip of the OSC server")
parser.add_argument("--port", type=int, default=3819,
help="The port the OSC server is listening on")
args = parser.parse_args()
console = Console(args.card)
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