code.vuplus.com Git - vuplus_dvbapp/blob - lib/python/Components/Harddisk.py

   1 from os import system, listdir, statvfs, popen, makedirs, stat, major, minor, path, access
   2 #       ikseong
   3 from Tools.Directories import SCOPE_HDD, resolveFilename, fileExists
   4
   5 from Tools.CList import CList
   6 from SystemInfo import SystemInfo
   7 import time
   8 from Components.Console import Console
   9
  10 def MajorMinor(path):
  11         rdev = stat(path).st_rdev
  12         return (major(rdev),minor(rdev))
  13
  14 def readFile(filename):
  15         file = open(filename)
  16         data = file.read().strip()
  17         file.close()
  18         return data
  19
  20 DEVTYPE_UDEV = 0
  21 DEVTYPE_DEVFS = 1
  22
  23 class Harddisk:
  24         def __init__(self, device):
  25                 self.device = device
  26
  27                 if access("/dev/.udev", 0):
  28                         self.type = DEVTYPE_UDEV
  29                 elif access("/dev/.devfsd", 0):
  30                         self.type = DEVTYPE_DEVFS
  31                 else:
  32                         print "Unable to determine structure of /dev"
  33
  34                 self.max_idle_time = 0
  35                 self.idle_running = False
  36                 self.timer = None
  37
  38                 self.dev_path = ''
  39                 self.disk_path = ''
  40                 self.phys_path = path.realpath(self.sysfsPath('device'))
  41
  42                 if self.type == DEVTYPE_UDEV:
  43                         self.dev_path = '/dev/' + self.device
  44                         self.disk_path = self.dev_path
  45
  46                 elif self.type == DEVTYPE_DEVFS:
  47                         tmp = readFile(self.sysfsPath('dev')).split(':')
  48                         s_major = int(tmp[0])
  49                         s_minor = int(tmp[1])
  50                         for disc in listdir("/dev/discs"):
  51                                 dev_path = path.realpath('/dev/discs/' + disc)
  52                                 disk_path = dev_path + '/disc'
  53                                 try:
  54                                         rdev = stat(disk_path).st_rdev
  55                                 except OSError:
  56                                         continue
  57                                 if s_major == major(rdev) and s_minor == minor(rdev):
  58                                         self.dev_path = dev_path
  59                                         self.disk_path = disk_path
  60                                         break
  61
  62                 print "new Harddisk", self.device, '->', self.dev_path, '->', self.disk_path
  63                 self.startIdle()
  64
  65         def __lt__(self, ob):
  66                 return self.device < ob.device
  67
  68         def partitionPath(self, n):
  69                 if self.type == DEVTYPE_UDEV:
  70                         return self.dev_path + n
  71                 elif self.type == DEVTYPE_DEVFS:
  72                         return self.dev_path + '/part' + n
  73
  74         def sysfsPath(self, filename):
  75                 return path.realpath('/sys/block/' + self.device + '/' + filename)
  76
  77         def stop(self):
  78                 if self.timer:
  79                         self.timer.stop()
  80                         self.timer.callback.remove(self.runIdle)
  81
  82         def bus(self):
  83                 # CF (7025 specific)
  84                 if self.type == DEVTYPE_UDEV:
  85                         ide_cf = False  # FIXME
  86                 elif self.type == DEVTYPE_DEVFS:
  87                         ide_cf = self.device[:2] == "hd" and "host0" not in self.dev_path
  88
  89                 internal = "pci" in self.phys_path
  90
  91                 if ide_cf:
  92                         ret = "External (CF)"
  93                 elif internal:
  94                         ret = "Internal"
  95                 else:
  96                         ret = "External"
  97                 return ret
  98
  99         def diskSize(self):
 100                 #       ikseong
 101                 try:
 102                         line = readFile(self.sysfsPath('size'))
 103                 except:
 104                         harddiskmanager.removeHotplugPartition(self.device)
 105                         print "error remove",self.device
 106                         return -1
 107                 try:
 108                         cap = int(line)
 109                 except:
 110                         return 0;
 111                 return cap / 1000 * 512 / 1000
 112
 113         def capacity(self):
 114                 cap = self.diskSize()
 115                 if cap == 0:
 116                         return ""
 117                 return "%d.%03d GB" % (cap/1000, cap%1000)
 118
 119         def model(self):
 120                 #       ikseong
 121                 try:
 122                         if self.device[:2] == "hd":
 123                                 return readFile('/proc/ide/' + self.device + '/model')
 124                         elif self.device[:2] == "sd":
 125                                 vendor = readFile(self.sysfsPath('device/vendor'))
 126                                 model = readFile(self.sysfsPath('device/model'))
 127                                 return vendor + '(' + model + ')'
 128                         else:
 129                                 assert False, "no hdX or sdX"
 130                 except:
 131                         harddiskmanager.removeHotplugPartition(self.device)
 132                         print "error remove",self.device
 133                         return -1
 134
 135         def free(self):
 136                 try:
 137                         mounts = open("/proc/mounts")
 138                 except IOError:
 139                         return -1
 140
 141                 lines = mounts.readlines()
 142                 mounts.close()
 143
 144                 for line in lines:
 145                         parts = line.strip().split(" ")
 146                         real_path = path.realpath(parts[0])
 147                         if not real_path[-1].isdigit():
 148                                 continue
 149                         try:
 150                                 if MajorMinor(real_path) == MajorMinor(self.partitionPath(real_path[-1])):
 151                                         stat = statvfs(parts[1])
 152                                         return stat.f_bfree/1000 * stat.f_bsize/1000
 153                         except OSError:
 154                                 pass
 155                 return -1
 156
 157         def numPartitions(self):
 158                 numPart = -1
 159                 if self.type == DEVTYPE_UDEV:
 160                         try:
 161                                 devdir = listdir('/dev')
 162                         except OSError:
 163                                 return -1
 164                         for filename in devdir:
 165                                 if filename.startswith(self.device):
 166                                         numPart += 1
 167
 168                 elif self.type == DEVTYPE_DEVFS:
 169                         try:
 170                                 idedir = listdir(self.dev_path)
 171                         except OSError:
 172                                 return -1
 173                         for filename in idedir:
 174                                 if filename.startswith("disc"):
 175                                         numPart += 1
 176                                 if filename.startswith("part"):
 177                                         numPart += 1
 178                 return numPart
 179
 180         def unmount(self):
 181                 try:
 182                         mounts = open("/proc/mounts")
 183                 except IOError:
 184                         return -1
 185
 186                 lines = mounts.readlines()
 187                 mounts.close()
 188
 189                 cmd = "umount"
 190
 191                 for line in lines:
 192                         parts = line.strip().split(" ")
 193                         real_path = path.realpath(parts[0])
 194                         if not real_path[-1].isdigit():
 195                                 continue
 196                         try:
 197                                 if MajorMinor(real_path) == MajorMinor(self.partitionPath(real_path[-1])):
 198                                         cmd = ' ' . join([cmd, parts[1]])
 199                                         break
 200                         except OSError:
 201                                 pass
 202
 203                 res = system(cmd)
 204                 return (res >> 8)
 205
 206         def checkPartionPath(self, path):
 207                 import time, os
 208                 for i in range(1,10):
 209                         if os.path.exists(path):
 210                                 return True
 211                         time.sleep(1)
 212                 return False
 213
 214         def createPartition(self):
 215                 cmd = 'printf "8,\n;0,0\n;0,0\n;0,0\ny\n" | sfdisk -f -uS ' + self.disk_path
 216                 res = system(cmd)
 217                 if not self.checkPartionPath(self.partitionPath("1")):
 218                         print "no exist : ", self.partitionPath("1")
 219                         return 1
 220                 return (res >> 8)
 221
 222         def mkfs(self):
 223                 cmd = "mkfs.ext3 "
 224                 if self.diskSize() > 4 * 1024:
 225                         cmd += "-T largefile "
 226                 cmd += "-m0 -O dir_index " + self.partitionPath("1")
 227                 res = system(cmd)
 228                 return (res >> 8)
 229
 230         def mount(self):
 231                 try:
 232                         fstab = open("/etc/fstab")
 233                 except IOError:
 234                         return -1
 235
 236                 lines = fstab.readlines()
 237                 fstab.close()
 238
 239                 res = -1
 240                 for line in lines:
 241                         parts = line.strip().split(" ")
 242                         real_path = path.realpath(parts[0])
 243                         if not real_path[-1].isdigit():
 244                                 continue
 245                         try:
 246                                 if MajorMinor(real_path) == MajorMinor(self.partitionPath(real_path[-1])):
 247                                         cmd = "mount -t ext3 " + parts[0]
 248                                         res = system(cmd)
 249                                         break
 250                         except OSError:
 251                                 pass
 252
 253                 return (res >> 8)
 254
 255         def createMovieFolder(self):
 256 #       ikseong
 257                 try:
 258                         if not fileExists("/hdd", 0):
 259                                 print "not found /hdd"
 260                                 system("ln -s /media/hdd /hdd")
 261 #
 262                         makedirs(resolveFilename(SCOPE_HDD))
 263                 except OSError:
 264                         return -1
 265                 return 0
 266
 267         def fsck(self):
 268                 # We autocorrect any failures
 269                 # TODO: we could check if the fs is actually ext3
 270                 cmd = "fsck.ext3 -f -p " + self.partitionPath("1")
 271                 res = system(cmd)
 272                 return (res >> 8)
 273
 274         def killPartition(self, n):
 275                 part = self.partitionPath(n)
 276
 277                 if access(part, 0):
 278                         cmd = 'dd bs=512 count=3 if=/dev/zero of=' + part
 279                         res = system(cmd)
 280                 else:
 281                         res = 0
 282
 283                 return (res >> 8)
 284
 285         errorList = [ _("Everything is fine"), _("Creating partition failed"), _("Mkfs failed"), _("Mount failed"), _("Create movie folder failed"), _("Fsck failed"), _("Please Reboot"), _("Filesystem contains uncorrectable errors"), _("Unmount failed")]
 286
 287         def initialize(self):
 288                 self.unmount()
 289
 290                 # Udev tries to mount the partition immediately if there is an
 291                 # old filesystem on it when fdisk reloads the partition table.
 292                 # To prevent that, we overwrite the first 3 sectors of the
 293                 # partition, if the partition existed before. That's enough for
 294                 # ext3 at least.
 295                 self.killPartition("1")
 296
 297                 if self.createPartition() != 0:
 298                         return -1
 299
 300                 if self.mkfs() != 0:
 301                         return -2
 302
 303                 if self.mount() != 0:
 304                         return -3
 305
 306                 if self.createMovieFolder() != 0:
 307                         return -4
 308
 309                 return 0
 310
 311         def check(self):
 312                 self.unmount()
 313
 314                 res = self.fsck()
 315                 if res & 2 == 2:
 316                         return -6
 317
 318                 if res & 4 == 4:
 319                         return -7
 320
 321                 if res != 0 and res != 1:
 322                         # A sum containing 1 will also include a failure
 323                         return -5
 324
 325                 if self.mount() != 0:
 326                         return -3
 327
 328                 return 0
 329
 330         def getDeviceDir(self):
 331                 return self.dev_path
 332
 333         def getDeviceName(self):
 334                 return self.disk_path
 335
 336         # the HDD idle poll daemon.
 337         # as some harddrives have a buggy standby timer, we are doing this by hand here.
 338         # first, we disable the hardware timer. then, we check every now and then if
 339         # any access has been made to the disc. If there has been no access over a specifed time,
 340         # we set the hdd into standby.
 341         def readStats(self):
 342                 try:
 343                         l = open("/sys/block/%s/stat" % self.device).read()
 344                 except IOError:
 345                         return -1,-1
 346                 (nr_read, _, _, _, nr_write) = l.split()[:5]
 347                 return int(nr_read), int(nr_write)
 348
 349         def startIdle(self):
 350                 self.last_access = time.time()
 351                 self.last_stat = 0
 352                 self.is_sleeping = False
 353                 from enigma import eTimer
 354
 355                 # disable HDD standby timer
 356                 Console().ePopen(("hdparm", "hdparm", "-S0", self.disk_path))
 357                 self.timer = eTimer()
 358                 self.timer.callback.append(self.runIdle)
 359                 self.idle_running = True
 360                 self.setIdleTime(self.max_idle_time) # kick the idle polling loop
 361
 362         def runIdle(self):
 363                 if not self.max_idle_time:
 364                         return
 365                 t = time.time()
 366
 367                 idle_time = t - self.last_access
 368
 369                 stats = self.readStats()
 370                 #       ikseong
 371                 if stats == -1:
 372                         self.setIdleTime(0)
 373                         return
 374                 print "nr_read", stats[0], "nr_write", stats[1]
 375                 l = sum(stats)
 376                 print "sum", l, "prev_sum", self.last_stat
 377
 378                 if l != self.last_stat and l >= 0: # access
 379                         print "hdd was accessed since previous check!"
 380                         self.last_stat = l
 381                         self.last_access = t
 382                         idle_time = 0
 383                         self.is_sleeping = False
 384                 else:
 385                         print "hdd IDLE!"
 386
 387                 print "[IDLE]", idle_time, self.max_idle_time, self.is_sleeping
 388                 if idle_time >= self.max_idle_time and not self.is_sleeping:
 389                         self.setSleep()
 390                         self.is_sleeping = True
 391
 392         def setSleep(self):
 393                 Console().ePopen(("hdparm", "hdparm", "-y", self.disk_path))
 394
 395         def setIdleTime(self, idle):
 396                 self.max_idle_time = idle
 397                 if self.idle_running:
 398                         if not idle:
 399                                 self.timer.stop()
 400                         else:
 401                                 self.timer.start(idle * 100, False)  # poll 10 times per period.
 402
 403         def isSleeping(self):
 404                 return self.is_sleeping
 405
 406 class Partition:
 407         def __init__(self, mountpoint, device = None, description = "", force_mounted = False):
 408                 self.mountpoint = mountpoint
 409                 self.description = description
 410                 self.force_mounted = force_mounted
 411                 self.is_hotplug = force_mounted # so far; this might change.
 412                 self.device = device
 413
 414         def stat(self):
 415                 return statvfs(self.mountpoint)
 416
 417         def free(self):
 418                 try:
 419                         s = self.stat()
 420                         return s.f_bavail * s.f_bsize
 421                 except OSError:
 422                         return None
 423
 424         def total(self):
 425                 try:
 426                         s = self.stat()
 427                         return s.f_blocks * s.f_bsize
 428                 except OSError:
 429                         return None
 430
 431         def mounted(self):
 432                 # THANK YOU PYTHON FOR STRIPPING AWAY f_fsid.
 433                 # TODO: can os.path.ismount be used?
 434                 if self.force_mounted:
 435                         return True
 436
 437                 try:
 438                         mounts = open("/proc/mounts")
 439                 except IOError:
 440                         return False
 441
 442                 lines = mounts.readlines()
 443                 mounts.close()
 444
 445                 for line in lines:
 446                         if line.split(' ')[1] == self.mountpoint:
 447                                 return True
 448                 return False
 449
 450 DEVICEDB_SR = \
 451         {"dm8000":
 452                 {
 453                         "/devices/pci0000:01/0000:01:00.0/host0/target0:0:0/0:0:0:0": _("DVD Drive"),
 454                         "/devices/pci0000:01/0000:01:00.0/host1/target1:0:0/1:0:0:0": _("DVD Drive"),
 455                         "/devices/platform/brcm-ehci-1.1/usb2/2-1/2-1:1.0/host3/target3:0:0/3:0:0:0": _("DVD Drive"),
 456                 },
 457         "dm800":
 458         {
 459         },
 460         "dm7025":
 461         {
 462         }
 463         }
 464
 465 DEVICEDB = \
 466         {"dm8000":
 467                 {
 468                         "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.1/1-1.1:1.0": _("Front USB Slot"),
 469                         "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.2/1-1.2:1.0": _("Back, upper USB Slot"),
 470                         "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.3/1-1.3:1.0": _("Back, lower USB Slot"),
 471                         "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.1/1-1.1:1.0": _("Front USB Slot"),
 472                         "/devices/platform/brcm-ehci-1.1/usb2/2-1/2-1:1.0/": _("Internal USB Slot"),
 473                         "/devices/platform/brcm-ohci-1.1/usb4/4-1/4-1:1.0/": _("Internal USB Slot"),
 474                 },
 475         "dm800":
 476         {
 477                 "/devices/platform/brcm-ehci.0/usb1/1-2/1-2:1.0": "Upper USB Slot",
 478                 "/devices/platform/brcm-ehci.0/usb1/1-1/1-1:1.0": "Lower USB Slot",
 479         },
 480         "dm7025":
 481         {
 482                 "/devices/pci0000:00/0000:00:14.1/ide1/1.0": "CF Card Slot", #hdc
 483                 "/devices/pci0000:00/0000:00:14.1/ide0/0.0": "Internal Harddisk"
 484         }
 485         }
 486
 487 class HarddiskManager:
 488         def __init__(self):
 489                 self.hdd = [ ]
 490                 self.cd = ""
 491                 self.partitions = [ ]
 492                 self.devices_scanned_on_init = [ ]
 493
 494                 self.on_partition_list_change = CList()
 495
 496                 self.enumerateBlockDevices()
 497
 498                 # currently, this is just an enumeration of what's possible,
 499                 # this probably has to be changed to support automount stuff.
 500                 # still, if stuff is mounted into the correct mountpoints by
 501                 # external tools, everything is fine (until somebody inserts
 502                 # a second usb stick.)
 503                 p = [
 504                                         ("/media/hdd", _("Harddisk")),
 505                                         ("/media/card", _("Card")),
 506                                         ("/media/cf", _("Compact Flash")),
 507                                         ("/media/mmc1", _("MMC Card")),
 508                                         ("/media/net", _("Network Mount")),
 509                                         ("/media/ram", _("Ram Disk")),
 510                                         ("/media/usb", _("USB Stick")),
 511                                         ("/", _("Internal Flash"))
 512                                 ]
 513
 514                 self.partitions.extend([ Partition(mountpoint = x[0], description = x[1]) for x in p ])
 515
 516         def getBlockDevInfo(self, blockdev):
 517                 devpath = "/sys/block/" + blockdev
 518                 error = False
 519                 removable = False
 520                 blacklisted = False
 521                 is_cdrom = False
 522                 partitions = []
 523                 try:
 524                         removable = bool(int(readFile(devpath + "/removable")))
 525                         dev = int(readFile(devpath + "/dev").split(':')[0])
 526                         if dev in (7, 31): # loop, mtdblock
 527                                 blacklisted = True
 528                         if blockdev[0:2] == 'sr':
 529                                 is_cdrom = True
 530                         if blockdev[0:2] == 'hd':
 531                                 try:
 532                                         media = readFile("/proc/ide/%s/media" % blockdev)
 533                                         if "cdrom" in media:
 534                                                 is_cdrom = True
 535                                 except IOError:
 536                                         error = True
 537                         # check for partitions
 538                         if not is_cdrom:
 539                                 for partition in listdir(devpath):
 540                                         if partition[0:len(blockdev)] != blockdev:
 541                                                 continue
 542                                         partitions.append(partition)
 543                         else:
 544                                 self.cd = blockdev
 545                 except IOError:
 546                         error = True
 547                 # check for medium
 548                 medium_found = True
 549                 try:
 550                         open("/dev/" + blockdev).close()
 551                 except IOError, err:
 552                         if err.errno == 159: # no medium present
 553                                 medium_found = False
 554
 555                 return error, blacklisted, removable, is_cdrom, partitions, medium_found
 556
 557         def enumerateBlockDevices(self):
 558                 print "enumerating block devices..."
 559                 for blockdev in listdir("/sys/block"):
 560                         error, blacklisted, removable, is_cdrom, partitions, medium_found = self.addHotplugPartition(blockdev)
 561                         if not error and not blacklisted:
 562                                 if medium_found:
 563                                         for part in partitions:
 564                                                 self.addHotplugPartition(part)
 565                                 self.devices_scanned_on_init.append((blockdev, removable, is_cdrom, medium_found))
 566
 567         def getAutofsMountpoint(self, device):
 568                 return "/autofs/%s/" % (device)
 569
 570
 571         def is_hard_mounted(self, device):
 572                 mounts = file('/proc/mounts').read().split('\n')
 573                 for x in mounts:
 574                         if x.find('/autofs') == -1 and x.find(device) != -1:
 575                                 return True
 576                 return False
 577
 578         def addHotplugPartition(self, device, physdev = None):
 579                 if not physdev:
 580                         dev, part = self.splitDeviceName(device)
 581                         try:
 582                                 physdev = path.realpath('/sys/block/' + dev + '/device')[4:]
 583                         except OSError:
 584                                 physdev = dev
 585                                 print "couldn't determine blockdev physdev for device", device
 586
 587                 error, blacklisted, removable, is_cdrom, partitions, medium_found = self.getBlockDevInfo(device)
 588                 print "found block device '%s':" % device,
 589
 590                 if blacklisted:
 591                         print "blacklisted"
 592                 else:
 593                         if error:
 594                                 print "error querying properties"
 595                         elif not medium_found:
 596                                 print "no medium"
 597                         else:
 598                                 print "ok, removable=%s, cdrom=%s, partitions=%s" % (removable, is_cdrom, partitions)
 599
 600                         l = len(device)
 601                         if l:
 602                                 # see if this is a harddrive
 603                                 if not device[l-1].isdigit() and not removable and not is_cdrom:
 604                                         self.hdd.append(Harddisk(device))
 605                                         self.hdd.sort()
 606                                         SystemInfo["Harddisk"] = len(self.hdd) > 0
 607
 608                                 if (not removable or medium_found) and not self.is_hard_mounted(device):
 609                                         # device is the device name, without /dev
 610                                         # physdev is the physical device path, which we (might) use to determine the userfriendly name
 611                                         description = self.getUserfriendlyDeviceName(device, physdev)
 612                                         p = Partition(mountpoint = self.getAutofsMountpoint(device), description = description, force_mounted = True, device = device)
 613                                         self.partitions.append(p)
 614                                         self.on_partition_list_change("add", p)
 615
 616                 return error, blacklisted, removable, is_cdrom, partitions, medium_found
 617
 618         def removeHotplugPartition(self, device):
 619                 mountpoint = self.getAutofsMountpoint(device)
 620                 for x in self.partitions[:]:
 621                         if x.mountpoint == mountpoint:
 622                                 self.partitions.remove(x)
 623                                 self.on_partition_list_change("remove", x)
 624                 l = len(device)
 625                 if l and not device[l-1].isdigit():
 626                         for hdd in self.hdd:
 627                                 if hdd.device == device:
 628                                         hdd.stop()
 629                                         self.hdd.remove(hdd)
 630                                         break
 631                         SystemInfo["Harddisk"] = len(self.hdd) > 0
 632
 633         def HDDCount(self):
 634                 return len(self.hdd)
 635
 636         def HDDList(self):
 637                 list = [ ]
 638                 for hd in self.hdd:
 639                         #       ikseong
 640                         if hd.model() == -1:
 641                                 continue
 642                         hdd = hd.model() + " - " + hd.bus()
 643                         cap = hd.capacity()
 644                         if cap != "":
 645                                 hdd += " (" + cap + ")"
 646                         list.append((hdd, hd))
 647                 return list
 648
 649         def getCD(self):
 650                 return self.cd
 651
 652         def getMountedPartitions(self, onlyhotplug = False):
 653                 parts = [x for x in self.partitions if (x.is_hotplug or not onlyhotplug) and x.mounted()]
 654                 devs = set([x.device for x in parts])
 655                 for devname in devs.copy():
 656                         if not devname:
 657                                 continue
 658                         dev, part = self.splitDeviceName(devname)
 659                         if part and dev in devs: # if this is a partition and we still have the wholedisk, remove wholedisk
 660                                 devs.remove(dev)
 661
 662                 # return all devices which are not removed due to being a wholedisk when a partition exists
 663                 return [x for x in parts if not x.device or x.device in devs]
 664
 665         def splitDeviceName(self, devname):
 666                 # this works for: sdaX, hdaX, sr0 (which is in fact dev="sr0", part=""). It doesn't work for other names like mtdblock3, but they are blacklisted anyway.
 667                 dev = devname[:3]
 668                 part = devname[3:]
 669                 for p in part:
 670                         if not p.isdigit():
 671                                 return devname, 0
 672                 return dev, part and int(part) or 0
 673
 674         def getUserfriendlyDeviceName(self, dev, phys):
 675                 dev, part = self.splitDeviceName(dev)
 676                 description = "External Storage %s" % dev
 677                 have_model_descr = False
 678                 try:
 679                         description = readFile("/sys" + phys + "/model")
 680                         have_model_descr = True
 681                 except IOError, s:
 682                         print "couldn't read model: ", s
 683                 from Tools.HardwareInfo import HardwareInfo
 684                 if dev.find('sr') == 0 and dev[2].isdigit():
 685                         devicedb = DEVICEDB_SR
 686                 else:
 687                         devicedb = DEVICEDB
 688                 for physdevprefix, pdescription in devicedb.get(HardwareInfo().device_name,{}).items():
 689                         if phys.startswith(physdevprefix):
 690                                 if have_model_descr:
 691                                         description = pdescription + ' - ' + description
 692                                 else:
 693                                         description = pdescription
 694                 # not wholedisk and not partition 1
 695                 if part and part != 1:
 696                         description += " (Partition %d)" % part
 697                 return description
 698
 699         def addMountedPartition(self, device, desc):
 700                 already_mounted = False
 701                 for x in self.partitions[:]:
 702                         if x.mountpoint == device:
 703                                 already_mounted = True
 704                 if not already_mounted:
 705                         self.partitions.append(Partition(mountpoint = device, description = desc))
 706
 707         def removeMountedPartition(self, mountpoint):
 708                 for x in self.partitions[:]:
 709                         if x.mountpoint == mountpoint:
 710                                 self.partitions.remove(x)
 711                                 self.on_partition_list_change("remove", x)
 712
 713 harddiskmanager = HarddiskManager()