Mercurial > code > home > repos > homeauto
annotate service/usbReset/usbReset.py @ 1153:e4f49cd9dda3
add :pointsAtLeastEvery control
Ignore-this: 9d0236b56b2a7592211ca68b87b4a5d1
darcs-hash:76e4d358cb6b039351c9b6f8e3bb825aaaefcc57
| author | drewp <drewp@bigasterisk.com> |
|---|---|
| date | Sun, 15 Apr 2018 04:41:00 -0700 |
| parents | 22af7ea8c401 |
| children |
| rev | line source |
|---|---|
| 846 | 1 #!bin/python |
| 2 """ | |
| 3 resets usb ports and restarts other services. Must run as root for the usb part. | |
| 4 | |
| 5 Other systems that might be able to do conditional tests and commands like this: | |
| 6 https://github.com/azkaban/azkaban | |
| 7 nagios | |
| 8 | |
| 9 | |
| 10 | |
| 11 run this as root to reset a whole usb device. Ported from | |
| 12 http://marc.info/?l=linux-usb&m=121459435621262&w=2 | |
| 13 | |
| 14 how to learn what device to reset? lsusb or lsusb -t | |
| 15 | |
| 16 how to learn the ioctl number? cpp on this file: | |
| 17 | |
| 18 #include "/usr/include/linux/usbdevice_fs.h" | |
| 19 #include "/usr/include/asm-generic/ioctl.h" | |
| 20 USBDEVFS_RESET | |
| 21 | |
| 22 last line comes out like this: | |
| 23 (((0U) << (((0 +8)+8)+14)) | ((('U')) << (0 +8)) | (((20)) << 0) | ((0) << ((0 +8)+8))) | |
| 24 | |
| 25 this is a py expression: | |
| 26 (((0) << (((0 +8)+8)+14)) | ((ord('U')) << (0 +8)) | (((20)) << 0) | ((0) << ((0 +8)+8))) | |
| 27 | |
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28 ---------------- |
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29 |
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30 also this other usb reset: |
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31 |
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32 http://davidjb.com/blog/2012/06/restartreset-usb-in-ubuntu-12-04-without-rebooting |
| 846 | 33 |
| 34 """ | |
| 35 | |
| 36 from __future__ import division | |
| 37 | |
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38 import cyclone.web, json, traceback, os, sys, time, logging, re |
| 846 | 39 import os, fcntl, commands, socket, logging, time, xmlrpclib, subprocess |
| 40 | |
| 41 from twisted.internet import reactor, task | |
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42 from twisted.internet.defer import inlineCallbacks, returnValue, Deferred |
| 846 | 43 from twisted.web.client import getPage |
| 44 sys.path.append("/my/proj/house/frontdoor") | |
| 45 from loggingserial import LoggingSerial | |
| 46 sys.path.append("/my/proj/homeauto/lib") | |
| 47 from cycloneerr import PrettyErrorHandler | |
| 48 from logsetup import log | |
| 49 | |
| 50 USBDEVFS_RESET = 21780 | |
| 51 | |
| 52 class Id(object): | |
| 53 ftdi = "0403:6001" | |
| 54 frontDoorHub0 = "8087:0024" # bus2 dev 2 | |
| 55 frontDoorHub1 = "0451:2046" # bus2 dev 3 | |
| 56 frontDoorHub2 = "1a40:0101" # bus2 dev 7 | |
| 57 frontDoorHub3 = "0409:0058" # bus2 dev 62 | |
| 58 frontDoorCam = "0ac8:307b" | |
| 59 | |
| 60 bedroomHub0 = "8087:0020" | |
| 61 bedroomHub1 = "05e3:0608" | |
| 62 bedroomHub2 = "058f:6254" | |
| 63 bedroomHub3 = "0409:005a" | |
| 64 bedroomCam = "046d:08aa" | |
| 65 bedroomSba = "04d8:000a" | |
| 66 bedroomArduino = "0403:6001" | |
| 67 | |
| 68 garageHub0 = "1d6b:0002" # bus2 dev1 | |
| 69 garageHub1 = "05e3:0604" # bus2 dev4 | |
| 70 garageArduino = "2341:0001" | |
| 71 garagePowerSerial = "0557:2008" | |
| 72 | |
| 73 blueHub = "1a40:0101" | |
| 74 | |
| 75 hostname = socket.gethostname() | |
| 76 | |
| 77 @inlineCallbacks | |
| 78 def getOk(url, timeout=1): | |
| 79 """can we get a successful status from this url in a short time?""" | |
| 80 log.debug("testing %s" % url) | |
| 81 try: | |
| 82 resp = yield getPage(url, timeout=timeout) | |
| 83 except Exception, e: | |
| 84 log.warn("getPage %s", e) | |
| 85 returnValue(False) | |
| 86 | |
| 87 returnValue(True) | |
| 88 | |
| 89 def hubDevice(usbId="1a40:0101"): | |
| 90 """ | |
| 91 what's the /dev path to the device with this usb id | |
| 92 """ | |
| 93 for line in commands.getoutput("lsusb").splitlines(): | |
| 94 if 'ID '+usbId in line: | |
| 95 words = line.split() | |
| 96 return "/dev/bus/usb/%s/%s" % (words[1], words[3].rstrip(':')) | |
| 97 raise ValueError("no usb device found with id %r" % usbId) | |
| 98 | |
| 99 def haveDevice(usbId): | |
| 100 try: | |
| 101 log.debug("checking for %s", usbId) | |
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102 dev = hubDevice(usbId) |
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103 # sometimes the dev will exist but fail to open |
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104 open(dev, "r") |
| 846 | 105 return True |
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106 except (ValueError, IOError): |
| 846 | 107 return False |
| 108 | |
| 109 def resetDevice(dev): | |
| 110 """ | |
| 111 send USBDEVFS_RESET to the given /dev address | |
| 112 """ | |
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113 d = Deferred() |
| 846 | 114 log.debug("resetting %s" % dev) |
| 115 f=os.open(dev, os.O_WRONLY) | |
| 116 ret = fcntl.ioctl(f, USBDEVFS_RESET, 0) | |
| 117 if ret != 0: | |
| 118 raise ValueError("ioctl failed with %s" % ret) | |
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119 reactor.callLater(3, d.callback, None) |
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120 return d |
| 846 | 121 |
| 122 def supervisorRestart(cmds, supervisor="http://localhost:9001"): | |
| 123 serv = xmlrpclib.ServerProxy(supervisor) | |
| 124 for c in cmds: | |
| 125 log.info("restarting %s", c) | |
| 126 try: | |
| 127 serv.supervisor.stopProcessGroup(c) | |
| 128 except xmlrpclib.ResponseError, e: | |
| 129 log.warn("supervisor.stopProcessGroup error %r, ignoring", e) | |
| 130 serv.supervisor.startProcess(c) | |
| 131 | |
| 132 def resetModules(modules): | |
| 133 log.info("reloading modules: %s", modules) | |
| 134 for m in modules: | |
| 135 subprocess.call(['modprobe', '-r', m]) | |
| 136 for m in modules: | |
| 137 subprocess.check_call(['modprobe', m]) | |
| 138 | |
| 139 | |
| 140 class Background(object): | |
| 141 def __init__(self, config, period): | |
| 142 self.config = config | |
| 143 self.period = period | |
| 144 self.lastPollTime = 0 | |
| 145 | |
| 146 def assertIsCurrent(self): | |
| 147 """raise an error if the poll data is not fresh""" | |
| 148 dt = time.time() - self.lastPollTime | |
| 149 if dt > self.period * 2: | |
| 150 raise ValueError("last poll time was too old: %.1f sec ago" % dt) | |
| 151 | |
| 152 @inlineCallbacks | |
| 153 def step(self): | |
| 154 now = time.time() | |
| 155 try: | |
| 156 if hostname == 'bang': | |
| 157 if (not haveDevice(Id.bedroomCam) or | |
| 158 not haveDevice(Id.bedroomArduino)): | |
| 159 if haveDevice(Id.bedroomHub3): | |
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160 yield resetDevice(hubDevice(Id.bedroomHub3)) |
| 846 | 161 else: |
| 162 if haveDevice(Id.bedroomHub2): | |
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163 yield resetDevice(hubDevice(Id.bedroomHub2)) |
| 846 | 164 else: |
| 165 if haveDevice(Id.bedroomHub1): | |
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166 yield resetDevice(hubDevice(Id.bedroomHub1)) |
| 846 | 167 else: |
| 168 if haveDevice(Id.bedroomHub0): | |
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169 yield resetDevice(hubDevice(Id.bedroomHub0)) |
| 846 | 170 else: |
| 171 raise ValueError( | |
| 172 "don't even have the first hub") | |
| 173 resetModules(['gspca_zc3xx']) | |
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174 #supervisorRestart(['webcam_9053']) |
| 846 | 175 else: |
| 176 log.debug("usb devices look ok") | |
| 177 | |
| 178 elif hostname == 'slash': | |
| 179 haveFrontHub0 = haveDevice(Id.frontDoorHub0) | |
| 180 haveFrontHub1 = haveDevice(Id.frontDoorHub1) | |
| 181 haveFrontHub2 = haveDevice(Id.frontDoorHub2) | |
| 182 haveFrontHub3 = haveDevice(Id.frontDoorHub3) | |
| 183 haveGarageHub0 = haveDevice(Id.garageHub0) | |
| 184 haveGarageHub1 = haveDevice(Id.garageHub1) | |
| 185 haveFrontDoorCam = haveDevice(Id.frontDoorCam) | |
| 186 haveV4lDevice = os.path.exists( | |
| 187 "/dev/v4l/by-id/usb-Vimicro_Corp._PC_Camera-video-index0") | |
| 188 haveFrontArduinoServe = (yield getOk('http://slash:9080/')) | |
| 189 haveFrontWebcamImage = (yield getOk( | |
| 190 "http://slash:9023/frontDoor", timeout=10)) | |
| 191 | |
| 192 log.info(str(vars())) | |
| 193 | |
| 194 if not haveDevice(Id.ftdi): | |
| 195 if haveFrontHub3: | |
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196 yield resetDevice(hubDevice(Id.frontDoorHub3)) |
| 846 | 197 else: |
| 198 if haveFrontHub2: | |
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199 yield resetDevice(hubDevice(Id.frontDoorHub2)) |
| 846 | 200 else: |
| 201 if haveFrontHub1: | |
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202 yield resetDevice(hubDevice(Id.frontDoorHub1)) |
| 846 | 203 else: |
| 204 if haveFrontHub0: | |
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205 yield resetDevice(hubDevice(Id.frontDoorHub0)) |
| 846 | 206 else: |
| 207 raise ValueError("don't have the first hub") | |
| 208 else: | |
| 209 log.debug("front door chain looks ok") | |
| 210 | |
| 211 if not haveDevice(Id.garagePowerSerial): | |
| 212 if haveGarageHub1: | |
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213 yield resetDevice(hubDevice(Id.garageHub1)) |
| 846 | 214 else: |
| 215 if haveGarageHub0: | |
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216 yield resetDevice(hubDevice(Id.garageHub0)) |
| 846 | 217 else: |
| 218 raise ValueError("don't have the first hub") | |
| 219 else: | |
| 220 log.debug("garage chain looks ok") | |
| 221 | |
| 222 if not haveDevice(Id.garageArduino): | |
| 223 if haveGarageHub1: | |
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224 yield resetDevice(hubDevice(Id.garageHub1)) |
| 846 | 225 else: |
| 226 raise ValueError("don't even have the first hub") | |
| 227 resetModules(['gspca_zc3xx']) | |
| 228 supervisorRestart(['frontDoorArduino_9080']) | |
| 229 else: | |
| 230 if not haveFrontArduinoServe: | |
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231 yield resetDevice(hubDevice(Id.frontDoorHub3)) |
| 846 | 232 supervisorRestart(['frontDoorArduino_9080']) |
| 233 time.sleep(10) | |
| 234 else: | |
| 235 log.debug("frontDoorArduino looks ok") | |
| 236 | |
| 237 if not haveFrontWebcamImage: | |
| 238 supervisorRestart(['webcam_frontDoor_9023']) | |
| 239 else: | |
| 240 log.debug("front webcam looks ok") | |
| 241 | |
| 242 elif hostname == 'dash': | |
| 243 if not os.path.exists("/dev/serial/by-id/usb-FTDI_FT232R_USB_UART_A900gbcG-if00-port0"): | |
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244 yield resetDevice(hubDevice("/dev/bus/usb/003/001")) |
| 846 | 245 |
| 246 else: | |
| 247 raise NotImplementedError | |
| 248 | |
| 249 log.debug(" -- finished") | |
| 250 self.lastPollTime = now | |
| 251 | |
| 252 except Exception, e: | |
| 253 print "poll error", e | |
| 254 traceback.print_exc() | |
| 255 | |
| 256 class Index(PrettyErrorHandler, cyclone.web.RequestHandler): | |
| 257 def get(self): | |
| 258 self.settings.background.assertIsCurrent() | |
| 259 | |
| 260 self.set_header("Content-Type", "application/xhtml+xml") | |
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261 self.write(open("index.html").read()) |
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262 |
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263 class Devices(PrettyErrorHandler, cyclone.web.RequestHandler): |
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264 def get(self): |
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265 out = [] |
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266 for line in commands.getoutput("lsusb").splitlines(): |
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267 words = line.split(None, 6) |
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268 for name, usbId in Id.__dict__.items(): |
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269 if usbId == words[5]: |
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270 break |
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271 else: |
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272 name = "?" |
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273 out.append(dict(dev="/dev/bus/usb/%s/%s" % (words[1], words[3].rstrip(':')), |
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274 name=name, |
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275 usbId=words[5], |
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276 usbName=words[6] if len(words) > 6 else "")) |
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277 |
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278 self.set_header("Content-Type", "application/json") |
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279 self.write(json.dumps({'devices':out})) |
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280 |
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281 class Reset(PrettyErrorHandler, cyclone.web.RequestHandler): |
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282 @inlineCallbacks |
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283 def post(self): |
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284 dev = self.get_argument('dev') |
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285 assert re.match("^[a-z0-9/]+$", dev), dev |
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286 yield resetDevice(dev) |
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287 |
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288 self.set_header("Content-Type", "text/plain") |
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289 self.write("ok") |
| 846 | 290 |
| 291 if __name__ == '__main__': | |
| 292 config = { # to be read from a file | |
| 293 'servePort' : 9100, | |
| 294 'checkPeriod' : 30, | |
| 295 } | |
| 296 | |
| 297 from twisted.python import log as twlog | |
| 298 #twlog.startLogging(sys.stdout) | |
| 299 | |
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300 log.setLevel(logging.DEBUG) |
| 846 | 301 |
| 302 p = Background(config, config['checkPeriod']) | |
| 303 task.LoopingCall(p.step).start(config['checkPeriod']) | |
| 304 | |
| 305 reactor.listenTCP(config['servePort'], cyclone.web.Application([ | |
| 306 (r"/", Index), | |
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307 (r"/devices", Devices), |
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308 (r"/devices/reset", Reset), |
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309 ], background=p, static_path="static")) |
| 846 | 310 reactor.run() |