initial commit

misc.py

@@ -0,0 +1,167 @@
+#!/usr/bin/env python3
+import re
+import os
+import time
+import subprocess
+import multiprocessing as mp
+import traceback
+
+import gpiod
+from configparser import ConfigParser
+from collections import defaultdict, OrderedDict
+
+cmds = {
+    'blk': "lsblk | awk '{print $1}'",
+    'up': "echo Uptime: `uptime | sed 's/.*up \\([^,]*\\), .*/\\1/'`",
+    'temp': "cat /sys/class/thermal/thermal_zone0/temp",
+    'ip': "hostname -I | awk '{printf \"IP %s\", $1}'",
+    'cpu': "uptime | awk '{printf \"CPU Load: %.2f\", $(NF-2)}'",
+    'men': "free -m | awk 'NR==2{printf \"Mem: %s/%sMB\", $3,$2}'",
+    'disk': "df -h | awk '$NF==\"/\"{printf \"Disk: %d/%dGB %s\", $3,$2,$5}'"
+}
+
+lv2dc = OrderedDict({'lv3': 0, 'lv2': 0.25, 'lv1': 0.5, 'lv0': 0.75})
+
+
+def check_output(cmd):
+    return subprocess.check_output(cmd, shell=True).decode().strip()
+
+
+def check_call(cmd):
+    return subprocess.check_call(cmd, shell=True)
+
+
+def get_blk():
+    conf['disk'] = [x for x in check_output(cmds['blk']).strip().split('\n') if x.startswith('sd')]
+
+
+def get_info(s):
+    return check_output(cmds[s])
+
+
+def get_cpu_temp():
+    t = float(get_info('temp')) / 1000
+    if conf['oled']['f-temp']:
+        temp = "CPU Temp: {:.0f}°F".format(t * 1.8 + 32)
+    else:
+        temp = "CPU Temp: {:.1f}°C".format(t)
+    return temp
+
+
+def read_conf():
+    conf = defaultdict(dict)
+
+    try:
+        cfg = ConfigParser()
+        cfg.read('/etc/rockpi-penta.conf')
+        # fan
+        conf['fan']['lv0'] = cfg.getfloat('fan', 'lv0')
+        conf['fan']['lv1'] = cfg.getfloat('fan', 'lv1')
+        conf['fan']['lv2'] = cfg.getfloat('fan', 'lv2')
+        conf['fan']['lv3'] = cfg.getfloat('fan', 'lv3')
+        # key
+        conf['key']['click'] = cfg.get('key', 'click')
+        conf['key']['twice'] = cfg.get('key', 'twice')
+        conf['key']['press'] = cfg.get('key', 'press')
+        # time
+        conf['time']['twice'] = cfg.getfloat('time', 'twice')
+        conf['time']['press'] = cfg.getfloat('time', 'press')
+        # other
+        conf['slider']['auto'] = cfg.getboolean('slider', 'auto')
+        conf['slider']['time'] = cfg.getfloat('slider', 'time')
+        conf['oled']['rotate'] = cfg.getboolean('oled', 'rotate')
+        conf['oled']['f-temp'] = cfg.getboolean('oled', 'f-temp')
+    except Exception:
+        traceback.print_exc()
+        # fan
+        conf['fan']['lv0'] = 35
+        conf['fan']['lv1'] = 40
+        conf['fan']['lv2'] = 45
+        conf['fan']['lv3'] = 50
+        # key
+        conf['key']['click'] = 'slider'
+        conf['key']['twice'] = 'switch'
+        conf['key']['press'] = 'none'
+        # time
+        conf['time']['twice'] = 0.7  # second
+        conf['time']['press'] = 1.8
+        # other
+        conf['slider']['auto'] = True
+        conf['slider']['time'] = 10  # second
+        conf['oled']['rotate'] = False
+        conf['oled']['f-temp'] = False
+
+    return conf
+
+
+def read_key(pattern, size):
+    CHIP_NAME = os.environ['BUTTON_CHIP']
+    LINE_NUMBER = os.environ['BUTTON_LINE']
+
+    s = ''
+    chip = gpiod.Chip(str(CHIP_NAME))
+    line = chip.get_line(int(LINE_NUMBER))
+    line.request(consumer='hat_button', type=gpiod.LINE_REQ_DIR_OUT)
+    line.set_value(1)
+
+    while True:
+        s = s[-size:] + str(line.get_value())
+        for t, p in pattern.items():
+            if p.match(s):
+                return t
+        time.sleep(0.1)
+
+
+def watch_key(q=None):
+    size = int(conf['time']['press'] * 10)
+    wait = int(conf['time']['twice'] * 10)
+    pattern = {
+        'click': re.compile(r'1+0+1{%d,}' % wait),
+        'twice': re.compile(r'1+0+1+0+1{3,}'),
+        'press': re.compile(r'1+0{%d,}' % size),
+    }
+
+    while True:
+        q.put(read_key(pattern, size))
+
+
+def get_disk_info(cache={}):
+    if not cache.get('time') or time.time() - cache['time'] > 30:
+        info = {}
+        cmd = "df -h | awk '$NF==\"/\"{printf \"%s\", $5}'"
+        info['root'] = check_output(cmd)
+        for x in conf['disk']:
+            cmd = "df -Bg | awk '$1==\"/dev/{}\" {{printf \"%s\", $5}}'".format(x)
+            info[x] = check_output(cmd)
+        cache['info'] = list(zip(*info.items()))
+        cache['time'] = time.time()
+
+    return cache['info']
+
+
+def slider_next(pages):
+    conf['idx'].value += 1
+    return pages[conf['idx'].value % len(pages)]
+
+
+def slider_sleep():
+    time.sleep(conf['slider']['time'])
+
+
+def fan_temp2dc(t):
+    for lv, dc in lv2dc.items():
+        if t >= conf['fan'][lv]:
+            return dc
+    return 0.999
+
+
+def fan_switch():
+    conf['run'].value = not conf['run'].value
+
+
+def get_func(key):
+    return conf['key'].get(key, 'none')
+
+
+conf = {'disk': [], 'idx': mp.Value('d', -1), 'run': mp.Value('d', 1)}
+conf.update(read_conf())