2019-08-03 23:42:59 +00:00
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import os,sys,argparse,yaml,types,select,serial,logging,time
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from picadae_api import Picadae
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2019-08-07 01:36:22 +00:00
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from picadae_api import Result
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2019-08-03 23:42:59 +00:00
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class PicadaeShell:
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def __init__( self, cfg ):
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self.p = None
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self.parseD = {
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2019-08-20 01:27:25 +00:00
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'q':{ "func":None, "minN":0, "maxN":0, "help":"quit"},
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'?':{ "func":"_help", "minN":0, "maxN":0, "help":"Print usage text."},
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'w':{ "func":"_write", "minN":-1, "maxN":-1,"help":"write <i2c_addr> <reg_addr> <data0> ... <dataN>"},
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'r':{ "func":"_read", "minN":4, "maxN":4, "help":"read <i2c_addr> <src> <reg_addr> <byteN>"},
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'v':{ "func":"note_on_vel", "minN":2, "maxN":2, "help":"note-on <pitch> <vel>"},
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'u':{ "func":"note_on_us", "minN":2, "maxN":3, "help":"note-on <pitch> <usec> <prescale> (1=1, 2=8, 3=64,(4)=256 16us, 5=1024)"},
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'o':{ "func":"note_off", "minN":1, "maxN":1, "help":"note-off <pitch>"},
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'T':{ "func":"set_vel_map", "minN":3, "maxN":3, "help":"table <pitch> <vel> <usec>"},
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't':{ "func":"get_vel_map", "minN":2, "maxN":2, "help":"table <pitch> <vel>"},
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'D':{ "func":"set_pwm", "minN":2, "maxN":4, "help":"duty <pitch> <percent> {<hz> {<div>}} div:2=2,3=4,4=8,5=16,6=32,7=64,8=128,9=256,(10)=512 32us, 11=1024,12=2048,13=4096,14=8192,15=16384" },
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'd':{ "func":"get_pwm_duty", "minN":1, "maxN":1, "help":"duty <pitch>"},
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'f':{ "func":"get_pwm_freq", "minN":1, "maxN":1, "help":"freq <pitch>"},
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'i':{ "func":"get_pwm_div", "minN":1, "maxN":1, "help":"div <pitch>"},
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'W':{ "func":"write_table", "minN":1, "maxN":1, "help":"write_table <pitch>"},
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'N':{ "func":"make_note", "minN":3, "maxN":3, "help":"note <pitch> atkUs durMs"},
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'L':{ "func":"set_log_level","minN":1, "maxN":1, "help":"log <level> (0-1)."}
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2019-08-03 23:42:59 +00:00
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}
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2019-08-20 01:27:25 +00:00
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def _help( self, _=None ):
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for k,d in self.parseD.items():
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s = "{} = {}".format( k, d['help'] )
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print(s)
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2019-08-07 01:36:22 +00:00
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return Result()
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2019-08-03 23:42:59 +00:00
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2019-08-20 01:27:25 +00:00
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def _write( self, argL ):
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2019-08-03 23:42:59 +00:00
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return self.p.write(argL[0], argL[1], argL[2:])
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2019-08-20 01:27:25 +00:00
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def _read( self, argL ):
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return self.p.block_on_picadae_read(argL[0], argL[1], argL[2], argL[3])
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def _syntaxError( self, msg ):
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print("Syntax Error: " + msg )
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return Result()
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def _exec_cmd( self, tokL ):
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result = Result()
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2019-08-03 23:42:59 +00:00
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if len(tokL) <= 0:
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return None
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opcode = tokL[0]
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if opcode not in self.parseD:
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return self._syntaxError("Unknown opcode: '{}'.".format(opcode))
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d = self.parseD[ opcode ]
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func_name = d['func']
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func = None
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2019-08-03 23:42:59 +00:00
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2019-08-20 01:27:25 +00:00
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# find the function associated with this command
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if hasattr(self, func_name ):
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func = getattr(self, func_name )
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elif hasattr(self.p, func_name ):
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func = getattr(self.p, func_name )
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else:
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return self._syntaxError("Exec function not found: '{}'.".format(func_name))
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try:
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# convert the parameter list into integers
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argL = [ int(tokL[i]) for i in range(1,len(tokL)) ]
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except:
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return self._syntaxError("Unable to create integer arguments.")
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# validate the count of command args
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if d['minN'] != -1 and (d['minN'] > len(argL) or len(argL) > d['maxN']):
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return self._syntaxError("Argument count mismatch. {} is out of range:{} to {}".format(len(argL),d['minN'],d['maxN']))
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# call the command function
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result = func(*argL)
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2019-08-03 23:42:59 +00:00
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2019-08-07 01:36:22 +00:00
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return result
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def run( self ):
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# create the API object
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self.p = Picadae( cfg.key_mapL, cfg.i2c_base_addr, cfg.serial_dev, cfg.serial_baud, cfg.prescaler_usec )
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2019-08-03 23:42:59 +00:00
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2019-08-07 01:36:22 +00:00
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# wait for the letter 'a' to come back from the serial port
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result = self.p.wait_for_serial_sync(timeoutMs=cfg.serial_sync_timeout_ms)
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if not result:
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print("Serial port sync failed.")
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else:
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print(result.value)
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print("'q'=quit '?'=help")
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time_out_secs = 1
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while True:
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# wait for keyboard activity
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i, o, e = select.select( [sys.stdin], [], [], time_out_secs )
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if (i):
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# read the command
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s = sys.stdin.readline().strip()
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# tokenize the command
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tokL = s.split(' ')
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# if this is the 'quit' command
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if tokL[0] == 'q':
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break
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# execute the command
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result = self._exec_cmd( tokL )
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if result.value:
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print(result.value)
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2019-08-03 23:42:59 +00:00
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self.p.close()
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def parse_args():
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"""Parse the command line arguments."""
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descStr = """Picadae auto-calibrate."""
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logL = ['debug','info','warning','error','critical']
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ap = argparse.ArgumentParser(description=descStr)
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ap.add_argument("-s","--setup", default="picadae_cmd.yml", help="YAML configuration file.")
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ap.add_argument("-c","--cmd", nargs="*", help="Give a command as multiple tokens")
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ap.add_argument("-r","--run", help="Run a named command list from the setup file.")
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ap.add_argument("-l","--log_level",choices=logL, default="warning", help="Set logging level: debug,info,warning,error,critical. Default:warning")
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return ap.parse_args()
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def parse_yaml_cfg( fn ):
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"""Parse the YAML configuration file."""
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cfg = None
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with open(fn,"r") as f:
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cfgD = yaml.load(f, Loader=yaml.FullLoader)
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cfg = types.SimpleNamespace(**cfgD['picadae_cmd'])
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return cfg
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if __name__ == "__main__":
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args = parse_args()
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cfg = parse_yaml_cfg( args.setup )
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app = PicadaeShell(cfg)
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app.run()
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