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iq_opt.py
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iq_opt.py
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#!/usr/bin/env python
# Program iq_opt.py - Handle program options and command line parameters.
# Copyright (C) 2013-2014 Martin Ewing
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# 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. If not, see <http://www.gnu.org/licenses/>.
#
# Contact the author by e-mail: [email protected]
#
# Part of the iq.py program.
# HISTORY
# 01-04-2014 Initial release
# 05-05-2014 Changed options
# 05-31-2014 Si570 control (vs RTL control vs None [af])
import optparse
# This module handles command-line options.
# Note options changed:
# Add "skip", "REV", remove "RPI", "taking", "max_queue"
# Add --SI570
# Set up command line parser. (Use iq.py --help to see a formatted qlisting.)
op = optparse.OptionParser()
# Boolean options / modes.
op.add_option("--FULLSCREEN", action="store_true", dest="fullscreen",
help="Switch to full screen display.")
op.add_option("--HAMLIB", action="store_true", dest="hamlib",
help="use Hamlib to monitor/control rig frequency.")
op.add_option("--LAGFIX", action="store_true", dest="lagfix",
help="Special mode to fix PCM290x R/L offset.")
op.add_option("--LCD4", action="store_true", dest="lcd4",
help='Use 4" LCD instead of large screen')
op.add_option("--RTL", action="store_true", dest="source_rtl",
help="Set source to RTL-SDR")
op.add_option("--SI570", action="store_true", dest="control_si570",
help="Set freq control to Si570, not RTL or Hamlib")
op.add_option("--REV", action="store_true", dest="rev_iq",
help="Reverse I & Q to reverse spectrum display")
op.add_option("--WATERFALL", action="store_true", dest="waterfall",
help="Use waterfall display.")
op.add_option("--spectrum", action="store_true", dest="spectrum",
help="Use spectrum display.")
op.add_option("--scope", action="store_true", dest="scope",
help="Use scope display.")
# Options with a parameter.
op.add_option("--cpu_load_intvl", action="store", type="float", dest="cpu_load_interval",
help="Seconds delay between CPU load calculations")
op.add_option("--rate", action="store", type="int", dest="sample_rate",
help="sample rate (Hz), eg 48000, 96000, or 1024000 or 2048000 (for rtl)")
op.add_option("--hamlib_device", action="store", type="string", dest="hamlib_device",
help="Hamlib serial port. Default /dev/ttyUSB0.")
op.add_option("--hamlib_intvl", action="store", type="float", dest="hamlib_interval",
help="Seconds delay between Hamlib operations")
op.add_option("--hamlib_rig", action="store", type="int", dest="hamlib_rigtype",
help="Hamlib rig type (int). Run 'rigctl --list' for possibilities. Default "
"is 229 (Elecraft K3/KX3).")
op.add_option("--index", action="store", type="int", dest="index",
help="index of audio input card. Use pa.py to examine choices. Index -1 " \
"selects default input device.")
op.add_option("--lcd4_brightness", action="store", type="int", dest="lcd4_brightness",
help="LCD4 display brightness 0 - 100")
op.add_option("--n_buffers", action="store", type="int", dest="buffers",
help="Number of FFT buffers in 'chunk', default 12")
op.add_option("--pulse_clip", action="store", type="int", dest="pulse",
help="pulse clipping threshold, default 10.")
op.add_option("--rtl_freq", action="store", type="float", dest="rtl_frequency",
help="Initial RTL operating frequency (float kHz)")
op.add_option("--rtl_gain", action="store", type="int", dest="rtl_gain",
help="RTL_SDR gain, default 0.")
op.add_option("--si570_frequency", action="store", type="float", dest="si570_frequency",
help="Si570 LO initial frequency, (float kHz)")
op.add_option("--size", action="store", type="int", dest="size",
help="size of FFT. Default is 512.")
op.add_option("--skip", action="store", type="int", dest="skip",
help="Skipping input data parameter >= 0")
op.add_option("--sp_min", action="store", type="int", dest="sp_min",
help="spectrum level, low end, dB")
op.add_option("--sp_max", action="store", type="int", dest="sp_max",
help="spectrum level, hi end, dB")
op.add_option("--v_min", action="store", type="int", dest="v_min",
help="palette level, low end, dB")
op.add_option("--v_max", action="store", type="int", dest="v_max",
help="palette level, hi end, dB")
op.add_option("--waterfall_acc", action="store", type="int", dest="waterfall_accumulation",
help="No. of spectra per waterfall line")
op.add_option("--waterfall_palette", action="store", type="int", dest="waterfall_palette",
help="Waterfall color palette (1 or 2)")
# The following are the default values which are used if not specified in the
# command line. You may want to edit them to be close to your normal operating needs.
DEF_SAMPLE_RATE = 48000
op.set_defaults(
buffers = 4, # no. buffers 2 in sample chunk (RPi-40)
control_si570 = False, # normally, talk to RTL or Hamlib for freq info
cpu_load_interval = 3.0, # cycle time for CPU monitor thread
fullscreen = False, # Use full screen mode? (if not LCD4)
hamlib = True, # Using Hamlib? T/F (RPi-False)
hamlib_device = "/dev/serial/by-id/usb-FTDI_FT232R_USB_UART_A9015X78-if00-port0", #"/dev/ttyUSB0", # Device address for Hamlib I/O
hamlib_interval = 1.0, # Wait between hamlib freq. checks (secs)
hamlib_rigtype = 229, # Elecraft K3/KX3.
index = 0, # index of audio device 0 (-1 use default)
lagfix = False, # Fix up PCM 290x bug
lcd4 = False, # default large screen
lcd4_brightness = 75, # brightness 0 - 100
pulse = 10, # pulse clip threshold
rev_iq = False, # Reverse I & Q
rtl_frequency = 146.e6, # RTL center freq. Hz
rtl_gain = 0, # auto
sample_rate = DEF_SAMPLE_RATE, # (stereo) frames/second (Hz)
scope = False, # use scope display
si570_frequency = 7050.0, # initial freq. for Si570 LO.
size = 256, # size of FFT --> freq. resolution
skip = 0, # if not =0, skip some input data
source_rtl = False, # Use sound card, not RTL-SDR input
spectrum = False, # Use spectrum display
sp_min =-40, # dB relative to clipping, at bottom of grid
sp_max =-10, # dB relative to clipping, at top of grid
v_min =-40, # palette starts at this level
v_max =-10, # palette ends at this level
waterfall = True, # Using waterfall? T/F
waterfall_accumulation = 1, # No. of spectra per waterfall line = 2
waterfall_palette = 2 # choose a waterfall color scheme
)
opt, args = op.parse_args()
# This is an "option" that the user can't change.
opt.ident = "IQ.PY v. 0.3.6 de AA6E"
# 'source' refers to signal source (RTL or audio sound card)
# 'control' refers to freq. readout/control (RTL, si570, or none)
opt.control = "none"
if opt.hamlib:
opt.control = "hamlib"
if opt.source_rtl:
opt.source = "rtl"
opt.control= "rtl"
else:
opt.source = "audio"
if opt.control_si570:
opt.control = "si570"
# Change default Freq for RTL to an appropriate (legal) value (tnx KF3EB)
# However, do not override user's --rate setting, if present.
if opt.source_rtl and (opt.sample_rate == DEF_SAMPLE_RATE):
opt.sample_rate = 1024000
# Main module will use: options.opt to pick up this 'opt' instance.
if __name__ == '__main__':
print 'debug'