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                 def CheckPartedVer():
 216                         cmd = 'parted --version'
 217                         lines = popen(cmd).readlines()
 218                         for l in lines:
 219                                 if l.find("parted (GNU parted)") != -1:
 220                                         ver = l.split()[3].strip()
 221                                         break
 222                         try:
 223                                 ver = float(ver)
 224                         except:
 225                                 print "[CheckPartedVer] check parted version Failed!"
 226                                 return 0
 227                         return ver
 228
 229                 disk_size = self.diskSize()
 230
 231                 if disk_size > 2.2 * 1000 * 1000: # if 2.2 TB
 232                         setAlign = ""
 233                         partedVer = CheckPartedVer()
 234                         if partedVer >= 2.1: # align option is supported in version 2.1 or later
 235                                 setAlign = "--align optimal"
 236                         cmd = 'parted %s %s --script mklabel gpt mkpart disk ext2 0%% 100%%' % ( setAlign, self.disk_path )
 237
 238                 else:
 239                         cmd = 'printf "8,\n;0,0\n;0,0\n;0,0\ny\n" | sfdisk -f -uS ' + self.disk_path
 240
 241                 res = system(cmd)
 242                 if not self.checkPartionPath(self.partitionPath("1")):
 243                         print "no exist : ", self.partitionPath("1")
 244                         return 1
 245                 return (res >> 8)
 246
 247         def mkfs(self):
 248                 cmd = "mkfs.ext3 "
 249                 if self.diskSize() > 4 * 1024:
 250                         cmd += "-T largefile "
 251                 cmd += "-m0 -O dir_index " + self.partitionPath("1")
 252                 res = system(cmd)
 253                 return (res >> 8)
 254
 255         def mount(self):
 256                 try:
 257                         fstab = open("/etc/fstab")
 258                 except IOError:
 259                         return -1
 260
 261                 lines = fstab.readlines()
 262                 fstab.close()
 263
 264                 res = -1
 265                 for line in lines:
 266                         parts = line.strip().split(" ")
 267                         real_path = path.realpath(parts[0])
 268                         if not real_path[-1].isdigit():
 269                                 continue
 270                         try:
 271                                 if MajorMinor(real_path) == MajorMinor(self.partitionPath(real_path[-1])):
 272                                         cmd = "mount -t ext3 " + parts[0]
 273                                         res = system(cmd)
 274                                         break
 275                         except OSError:
 276                                 pass
 277
 278                 return (res >> 8)
 279
 280         def createMovieFolder(self):
 281 #       ikseong
 282                 try:
 283                         if not fileExists("/hdd", 0):
 284                                 print "not found /hdd"
 285                                 system("ln -s /media/hdd /hdd")
 286 #
 287                         makedirs(resolveFilename(SCOPE_HDD))
 288                 except OSError:
 289                         return -1
 290                 return 0
 291
 292         def fsck(self):
 293                 # We autocorrect any failures
 294                 # TODO: we could check if the fs is actually ext3
 295                 cmd = "fsck.ext3 -f -p " + self.partitionPath("1")
 296                 res = system(cmd)
 297                 return (res >> 8)
 298
 299         def killPartition(self, n):
 300                 part = self.partitionPath(n)
 301
 302                 if access(part, 0):
 303                         cmd = 'dd bs=512 count=3 if=/dev/zero of=' + part
 304                         res = system(cmd)
 305                 else:
 306                         res = 0
 307
 308                 return (res >> 8)
 309
 310         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")]
 311
 312         def initialize(self):
 313                 self.unmount()
 314
 315                 # Udev tries to mount the partition immediately if there is an
 316                 # old filesystem on it when fdisk reloads the partition table.
 317                 # To prevent that, we overwrite the first 3 sectors of the
 318                 # partition, if the partition existed before. That's enough for
 319                 # ext3 at least.
 320                 self.killPartition("1")
 321
 322                 if self.createPartition() != 0:
 323                         return -1
 324
 325                 if self.mkfs() != 0:
 326                         return -2
 327
 328                 if self.mount() != 0:
 329                         return -3
 330
 331                 if self.createMovieFolder() != 0:
 332                         return -4
 333
 334                 return 0
 335
 336         def check(self):
 337                 self.unmount()
 338
 339                 res = self.fsck()
 340                 if res & 2 == 2:
 341                         return -6
 342
 343                 if res & 4 == 4:
 344                         return -7
 345
 346                 if res != 0 and res != 1:
 347                         # A sum containing 1 will also include a failure
 348                         return -5
 349
 350                 if self.mount() != 0:
 351                         return -3
 352
 353                 return 0
 354
 355         def getDeviceDir(self):
 356                 return self.dev_path
 357
 358         def getDeviceName(self):
 359                 return self.disk_path
 360
 361         # the HDD idle poll daemon.
 362         # as some harddrives have a buggy standby timer, we are doing this by hand here.
 363         # first, we disable the hardware timer. then, we check every now and then if
 364         # any access has been made to the disc. If there has been no access over a specifed time,
 365         # we set the hdd into standby.
 366         def readStats(self):
 367                 try:
 368                         l = open("/sys/block/%s/stat" % self.device).read()
 369                 except IOError:
 370                         return -1,-1
 371                 (nr_read, _, _, _, nr_write) = l.split()[:5]
 372                 return int(nr_read), int(nr_write)
 373
 374         def startIdle(self):
 375                 self.last_access = time.time()
 376                 self.last_stat = 0
 377                 self.is_sleeping = False
 378                 from enigma import eTimer
 379
 380                 # disable HDD standby timer
 381                 Console().ePopen(("hdparm", "hdparm", "-S0", self.disk_path))
 382                 self.timer = eTimer()
 383                 self.timer.callback.append(self.runIdle)
 384                 self.idle_running = True
 385                 self.setIdleTime(self.max_idle_time) # kick the idle polling loop
 386
 387         def runIdle(self):
 388                 if not self.max_idle_time:
 389                         return
 390                 t = time.time()
 391
 392                 idle_time = t - self.last_access
 393
 394                 stats = self.readStats()
 395                 #       ikseong
 396                 if stats == -1:
 397                         self.setIdleTime(0)
 398                         return
 399                 print "nr_read", stats[0], "nr_write", stats[1]
 400                 l = sum(stats)
 401                 print "sum", l, "prev_sum", self.last_stat
 402
 403                 if l != self.last_stat and l >= 0: # access
 404                         print "hdd was accessed since previous check!"
 405                         self.last_stat = l
 406                         self.last_access = t
 407                         idle_time = 0
 408                         self.is_sleeping = False
 409                 else:
 410                         print "hdd IDLE!"
 411
 412                 print "[IDLE]", idle_time, self.max_idle_time, self.is_sleeping
 413                 if idle_time >= self.max_idle_time and not self.is_sleeping:
 414                         self.setSleep()
 415                         self.is_sleeping = True
 416
 417         def setSleep(self):
 418                 Console().ePopen(("hdparm", "hdparm", "-y", self.disk_path))
 419
 420         def setIdleTime(self, idle):
 421                 self.max_idle_time = idle
 422                 if self.idle_running:
 423                         if not idle:
 424                                 self.timer.stop()
 425                         else:
 426                                 self.timer.start(idle * 100, False)  # poll 10 times per period.
 427
 428         def isSleeping(self):
 429                 return self.is_sleeping
 430
 431 class Partition:
 432         def __init__(self, mountpoint, device = None, description = "", force_mounted = False):
 433                 self.mountpoint = mountpoint
 434                 self.description = description
 435                 self.force_mounted = force_mounted
 436                 self.is_hotplug = force_mounted # so far; this might change.
 437                 self.device = device
 438
 439         def stat(self):
 440                 return statvfs(self.mountpoint)
 441
 442         def free(self):
 443                 try:
 444                         s = self.stat()
 445                         return s.f_bavail * s.f_bsize
 446                 except OSError:
 447                         return None
 448
 449         def total(self):
 450                 try:
 451                         s = self.stat()
 452                         return s.f_blocks * s.f_bsize
 453                 except OSError:
 454                         return None
 455
 456         def mounted(self):
 457                 # THANK YOU PYTHON FOR STRIPPING AWAY f_fsid.
 458                 # TODO: can os.path.ismount be used?
 459                 if self.force_mounted:
 460                         return True
 461
 462                 try:
 463                         mounts = open("/proc/mounts")
 464                 except IOError:
 465                         return False
 466
 467                 lines = mounts.readlines()
 468                 mounts.close()
 469
 470                 for line in lines:
 471                         if line.split(' ')[1] == self.mountpoint:
 472                                 return True
 473                 return False
 474
 475 DEVICEDB_SR = \
 476         {"dm8000":
 477                 {
 478                         "/devices/pci0000:01/0000:01:00.0/host0/target0:0:0/0:0:0:0": _("DVD Drive"),
 479                         "/devices/pci0000:01/0000:01:00.0/host1/target1:0:0/1:0:0:0": _("DVD Drive"),
 480                         "/devices/platform/brcm-ehci-1.1/usb2/2-1/2-1:1.0/host3/target3:0:0/3:0:0:0": _("DVD Drive"),
 481                 },
 482         "dm800":
 483         {
 484         },
 485         "dm7025":
 486         {
 487         }
 488         }
 489
 490 DEVICEDB = \
 491         {"dm8000":
 492                 {
 493                         "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.1/1-1.1:1.0": _("Front USB Slot"),
 494                         "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.2/1-1.2:1.0": _("Back, upper USB Slot"),
 495                         "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.3/1-1.3:1.0": _("Back, lower USB Slot"),
 496                         "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.1/1-1.1:1.0": _("Front USB Slot"),
 497                         "/devices/platform/brcm-ehci-1.1/usb2/2-1/2-1:1.0/": _("Internal USB Slot"),
 498                         "/devices/platform/brcm-ohci-1.1/usb4/4-1/4-1:1.0/": _("Internal USB Slot"),
 499                 },
 500         "dm800":
 501         {
 502                 "/devices/platform/brcm-ehci.0/usb1/1-2/1-2:1.0": "Upper USB Slot",
 503                 "/devices/platform/brcm-ehci.0/usb1/1-1/1-1:1.0": "Lower USB Slot",
 504         },
 505         "dm7025":
 506         {
 507                 "/devices/pci0000:00/0000:00:14.1/ide1/1.0": "CF Card Slot", #hdc
 508                 "/devices/pci0000:00/0000:00:14.1/ide0/0.0": "Internal Harddisk"
 509         }
 510         }
 511
 512 class HarddiskManager:
 513         def __init__(self):
 514                 self.hdd = [ ]
 515                 self.cd = ""
 516                 self.partitions = [ ]
 517                 self.devices_scanned_on_init = [ ]
 518
 519                 self.on_partition_list_change = CList()
 520
 521                 self.enumerateBlockDevices()
 522
 523                 # currently, this is just an enumeration of what's possible,
 524                 # this probably has to be changed to support automount stuff.
 525                 # still, if stuff is mounted into the correct mountpoints by
 526                 # external tools, everything is fine (until somebody inserts
 527                 # a second usb stick.)
 528                 p = [
 529                                         ("/media/hdd", _("Harddisk")),
 530                                         ("/media/card", _("Card")),
 531                                         ("/media/cf", _("Compact Flash")),
 532                                         ("/media/mmc1", _("MMC Card")),
 533                                         ("/media/net", _("Network Mount")),
 534                                         ("/media/ram", _("Ram Disk")),
 535                                         ("/media/usb", _("USB Stick")),
 536                                         ("/", _("Internal Flash"))
 537                                 ]
 538
 539                 self.partitions.extend([ Partition(mountpoint = x[0], description = x[1]) for x in p ])
 540
 541         def getBlockDevInfo(self, blockdev):
 542                 devpath = "/sys/block/" + blockdev
 543                 error = False
 544                 removable = False
 545                 blacklisted = False
 546                 is_cdrom = False
 547                 partitions = []
 548                 try:
 549                         removable = bool(int(readFile(devpath + "/removable")))
 550                         dev = int(readFile(devpath + "/dev").split(':')[0])
 551                         if dev in (7, 31): # loop, mtdblock
 552                                 blacklisted = True
 553                         if blockdev[0:2] == 'sr':
 554                                 is_cdrom = True
 555                         if blockdev[0:2] == 'hd':
 556                                 try:
 557                                         media = readFile("/proc/ide/%s/media" % blockdev)
 558                                         if "cdrom" in media:
 559                                                 is_cdrom = True
 560                                 except IOError:
 561                                         error = True
 562                         # check for partitions
 563                         if not is_cdrom:
 564                                 for partition in listdir(devpath):
 565                                         if partition[0:len(blockdev)] != blockdev:
 566                                                 continue
 567                                         partitions.append(partition)
 568                         else:
 569                                 self.cd = blockdev
 570                 except IOError:
 571                         error = True
 572                 # check for medium
 573                 medium_found = True
 574                 try:
 575                         open("/dev/" + blockdev).close()
 576                 except IOError, err:
 577                         if err.errno == 159: # no medium present
 578                                 medium_found = False
 579
 580                 return error, blacklisted, removable, is_cdrom, partitions, medium_found
 581
 582         def enumerateBlockDevices(self):
 583                 print "enumerating block devices..."
 584                 for blockdev in listdir("/sys/block"):
 585                         error, blacklisted, removable, is_cdrom, partitions, medium_found = self.addHotplugPartition(blockdev)
 586                         if not error and not blacklisted:
 587                                 if medium_found:
 588                                         for part in partitions:
 589                                                 self.addHotplugPartition(part)
 590                                 self.devices_scanned_on_init.append((blockdev, removable, is_cdrom, medium_found))
 591
 592         def getAutofsMountpoint(self, device):
 593                 return "/autofs/%s/" % (device)
 594
 595
 596         def is_hard_mounted(self, device):
 597                 mounts = file('/proc/mounts').read().split('\n')
 598                 for x in mounts:
 599                         if x.find('/autofs') == -1 and x.find(device) != -1:
 600                                 return True
 601                 return False
 602
 603         def addHotplugPartition(self, device, physdev = None):
 604                 if not physdev:
 605                         dev, part = self.splitDeviceName(device)
 606                         try:
 607                                 physdev = path.realpath('/sys/block/' + dev + '/device')[4:]
 608                         except OSError:
 609                                 physdev = dev
 610                                 print "couldn't determine blockdev physdev for device", device
 611
 612                 error, blacklisted, removable, is_cdrom, partitions, medium_found = self.getBlockDevInfo(device)
 613                 print "found block device '%s':" % device,
 614
 615                 if blacklisted:
 616                         print "blacklisted"
 617                 else:
 618                         if error:
 619                                 print "error querying properties"
 620                         elif not medium_found:
 621                                 print "no medium"
 622                         else:
 623                                 print "ok, removable=%s, cdrom=%s, partitions=%s" % (removable, is_cdrom, partitions)
 624
 625                         l = len(device)
 626                         if l:
 627                                 # see if this is a harddrive
 628                                 if not device[l-1].isdigit() and not removable and not is_cdrom:
 629                                         self.hdd.append(Harddisk(device))
 630                                         self.hdd.sort()
 631                                         SystemInfo["Harddisk"] = len(self.hdd) > 0
 632
 633                                 if (not removable or medium_found) and not self.is_hard_mounted(device):
 634                                         # device is the device name, without /dev
 635                                         # physdev is the physical device path, which we (might) use to determine the userfriendly name
 636                                         description = self.getUserfriendlyDeviceName(device, physdev)
 637                                         p = Partition(mountpoint = self.getAutofsMountpoint(device), description = description, force_mounted = True, device = device)
 638                                         self.partitions.append(p)
 639                                         self.on_partition_list_change("add", p)
 640
 641                 return error, blacklisted, removable, is_cdrom, partitions, medium_found
 642
 643         def removeHotplugPartition(self, device):
 644                 mountpoint = self.getAutofsMountpoint(device)
 645                 for x in self.partitions[:]:
 646                         if x.mountpoint == mountpoint:
 647                                 self.partitions.remove(x)
 648                                 self.on_partition_list_change("remove", x)
 649                 l = len(device)
 650                 if l and not device[l-1].isdigit():
 651                         for hdd in self.hdd:
 652                                 if hdd.device == device:
 653                                         hdd.stop()
 654                                         self.hdd.remove(hdd)
 655                                         break
 656                         SystemInfo["Harddisk"] = len(self.hdd) > 0
 657
 658         def HDDCount(self):
 659                 return len(self.hdd)
 660
 661         def HDDList(self):
 662                 list = [ ]
 663                 for hd in self.hdd:
 664                         #       ikseong
 665                         if hd.model() == -1:
 666                                 continue
 667                         hdd = hd.model() + " - " + hd.bus()
 668                         cap = hd.capacity()
 669                         if cap != "":
 670                                 hdd += " (" + cap + ")"
 671                         list.append((hdd, hd))
 672                 return list
 673
 674         def getCD(self):
 675                 return self.cd
 676
 677         def getMountedPartitions(self, onlyhotplug = False):
 678                 parts = [x for x in self.partitions if (x.is_hotplug or not onlyhotplug) and x.mounted()]
 679                 devs = set([x.device for x in parts])
 680                 for devname in devs.copy():
 681                         if not devname:
 682                                 continue
 683                         dev, part = self.splitDeviceName(devname)
 684                         if part and dev in devs: # if this is a partition and we still have the wholedisk, remove wholedisk
 685                                 devs.remove(dev)
 686
 687                 # return all devices which are not removed due to being a wholedisk when a partition exists
 688                 return [x for x in parts if not x.device or x.device in devs]
 689
 690         def splitDeviceName(self, devname):
 691                 # 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.
 692                 dev = devname[:3]
 693                 part = devname[3:]
 694                 for p in part:
 695                         if not p.isdigit():
 696                                 return devname, 0
 697                 return dev, part and int(part) or 0
 698
 699         def getUserfriendlyDeviceName(self, dev, phys):
 700                 dev, part = self.splitDeviceName(dev)
 701                 description = "External Storage %s" % dev
 702                 have_model_descr = False
 703                 try:
 704                         description = readFile("/sys" + phys + "/model")
 705                         have_model_descr = True
 706                 except IOError, s:
 707                         print "couldn't read model: ", s
 708                 from Tools.HardwareInfo import HardwareInfo
 709                 if dev.find('sr') == 0 and dev[2].isdigit():
 710                         devicedb = DEVICEDB_SR
 711                 else:
 712                         devicedb = DEVICEDB
 713                 for physdevprefix, pdescription in devicedb.get(HardwareInfo().device_name,{}).items():
 714                         if phys.startswith(physdevprefix):
 715                                 if have_model_descr:
 716                                         description = pdescription + ' - ' + description
 717                                 else:
 718                                         description = pdescription
 719                 # not wholedisk and not partition 1
 720                 if part and part != 1:
 721                         description += " (Partition %d)" % part
 722                 return description
 723
 724         def addMountedPartition(self, device, desc):
 725                 already_mounted = False
 726                 for x in self.partitions[:]:
 727                         if x.mountpoint == device:
 728                                 already_mounted = True
 729                 if not already_mounted:
 730                         self.partitions.append(Partition(mountpoint = device, description = desc))
 731
 732         def removeMountedPartition(self, mountpoint):
 733                 for x in self.partitions[:]:
 734                         if x.mountpoint == mountpoint:
 735                                 self.partitions.remove(x)
 736                                 self.on_partition_list_change("remove", x)
 737
 738 harddiskmanager = HarddiskManager()