ca_amp_ctrl.py

#!/usr/bin/python3

import sys
import argparse
import libamp


all_models = {model for model in libamp.command_table}
all_commands = {
    command for model in all_models for command in libamp.command_table[model]
}

# Build argument parser
parser = argparse.ArgumentParser(description="Control Cambridge Audio amplifiers.")
parser.add_argument("--pin", nargs="?", default=4, type=int)
parser.add_argument("--repeat", nargs="?", default=1, type=libamp.posint)
parser.add_argument("--model", default="540A", choices=libamp.all_models)
parser.add_argument(
    "command",
    nargs=1,
    choices=libamp.all_commands,
    help="Not all commands are available for all models!",
)
args = parser.parse_args()

command = args.command[0].lower()
print("Sending '" + command + "' command to pin " + str(args.pin))

if args.repeat != 1:
    print(str(args.repeat) + " times")

libamp.execute(args.pin, command, args.repeat, model=args.model)

sys.exit(0)