X-Git-Url: https://git.cweiske.de/enigma2.git/blobdiff_plain/bc5fff23f0b5e52e67fa6df82506320523b6771a..1736046db88e13842e67396da8ee7b02ece75443:/lib/python/Components/Harddisk.py diff --git a/lib/python/Components/Harddisk.py b/lib/python/Components/Harddisk.py old mode 100644 new mode 100755 index c5ba1344..18616bf2 --- a/lib/python/Components/Harddisk.py +++ b/lib/python/Components/Harddisk.py @@ -1,4 +1,9 @@ - +from os import system, listdir, statvfs, popen, makedirs, readlink, stat, major, minor +from Tools.Directories import SCOPE_HDD, resolveFilename +from Tools.CList import CList +from SystemInfo import SystemInfo +import time +from Components.Console import Console def tryOpen(filename): try: @@ -8,39 +13,542 @@ def tryOpen(filename): return procFile class Harddisk: - def __init__(self, index): - self.index = index - #perhaps this is easier? - self.prochdx = "/proc/ide/hd" + ("a","b","c","d","e","f","g","h")[index] + "/" - - def capacity(self): - procfile = tryOpen(self.prochdx + "capacity") - - if procfile == "": - return -1 + def __init__(self, device): + self.device = device + procfile = tryOpen("/sys/block/"+self.device+"/dev") + tmp = procfile.readline().split(':') + s_major = int(tmp[0]) + s_minor = int(tmp[1]) + self.max_idle_time = 0 + self.idle_running = False + self.timer = None + for disc in listdir("/dev/discs"): + path = readlink('/dev/discs/'+disc) + devidex = '/dev/discs/'+disc+'/' + devidex2 = '/dev'+path[2:]+'/' + disc = devidex2+'disc' + ret = stat(disc).st_rdev + if s_major == major(ret) and s_minor == minor(ret): + self.devidex = devidex + self.devidex2 = devidex2 + print "new Harddisk", device, '->', self.devidex, '->', self.devidex2 + self.startIdle() + break + + def __lt__(self, ob): + return self.device < ob.device + def stop(self): + if self.timer: + self.timer.stop() + self.timer.callback.remove(self.runIdle) + + def bus(self): + ide_cf = self.device[:2] == "hd" and "host0" not in self.devidex2 # 7025 specific + internal = self.device[:2] == "hd" + if ide_cf: + ret = "External (CF)" + elif internal: + ret = "Internal" + else: + ret = "External" + return ret + + def diskSize(self): + procfile = tryOpen("/sys/block/"+self.device+"/size") + if procfile == "": + return 0 line = procfile.readline() procfile.close() - try: cap = int(line) except: - return -1 - - return cap - + return 0; + return cap / 1000 * 512 / 1000 + + def capacity(self): + cap = self.diskSize() + if cap == 0: + return "" + return "%d.%03d GB" % (cap/1000, cap%1000) + def model(self): - procfile = tryOpen(self.prochdx + "model") + if self.device[:2] == "hd": + procfile = tryOpen("/proc/ide/"+self.device+"/model") + if procfile == "": + return "" + line = procfile.readline() + procfile.close() + return line.strip() + elif self.device[:2] == "sd": + procfile = tryOpen("/sys/block/"+self.device+"/device/vendor") + if procfile == "": + return "" + vendor = procfile.readline().strip() + procfile.close() + procfile = tryOpen("/sys/block/"+self.device+"/device/model") + model = procfile.readline().strip() + return vendor+'('+model+')' + else: + assert False, "no hdX or sdX" + + def free(self): + procfile = tryOpen("/proc/mounts") if procfile == "": - return "" + return -1 - line = procfile.readline() + free = -1 + while 1: + line = procfile.readline() + if line == "": + break + if line.startswith(self.devidex) or line.startswith(self.devidex2): + parts = line.strip().split(" ") + try: + stat = statvfs(parts[1]) + except OSError: + continue + free = stat.f_bfree/1000 * stat.f_bsize/1000 + break procfile.close() + return free + + def numPartitions(self): + try: + idedir = listdir(self.devidex) + except OSError: + return -1 + numPart = -1 + for filename in idedir: + if filename.startswith("disc"): + numPart += 1 + if filename.startswith("part"): + numPart += 1 + return numPart + + def unmount(self): + procfile = tryOpen("/proc/mounts") + + if procfile == "": + return -1 + + cmd = "/bin/umount" + + for line in procfile: + if line.startswith(self.devidex) or line.startswith(self.devidex2): + parts = line.split() + cmd = ' '.join([cmd, parts[1]]) + + procfile.close() + + res = system(cmd) + return (res >> 8) + + def createPartition(self): + cmd = "/sbin/sfdisk -f " + self.devidex + "disc" + sfdisk = popen(cmd, "w") + sfdisk.write("0,\n;\n;\n;\ny\n") + sfdisk.close() + return 0 + + def mkfs(self): + cmd = "/sbin/mkfs.ext3 " + if self.diskSize() > 4 * 1024: + cmd += "-T largefile " + cmd += "-m0 -O dir_index " + self.devidex + "part1" + res = system(cmd) + return (res >> 8) + + def mount(self): + res = -1 + #we don't know which type of devicename is used in fstab, try both + for device in [self.devidex, self.devidex2]: + cmd = "/bin/mount -t ext3 " + device + "part1" + res = system(cmd) + res >>= 8 + if not res: + break + return res + + def createMovieFolder(self): + try: + makedirs(resolveFilename(SCOPE_HDD)) + except OSError: + return -1 + return 0 + + def fsck(self): + # We autocorrect any failures + # TODO: we could check if the fs is actually ext3 + cmd = "/sbin/fsck.ext3 -f -p " + self.devidex + "part1" + res = system(cmd) + return (res >> 8) + + 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")] + + def initialize(self): + self.unmount() + + if self.createPartition() != 0: + return -1 + + if self.mkfs() != 0: + return -2 + + if self.mount() != 0: + return -3 + + if self.createMovieFolder() != 0: + return -4 + + return 0 - return line + def check(self): + self.unmount() + + res = self.fsck() + if res & 2 == 2: + return -6 + + if res & 4 == 4: + return -7 + + if res != 0 and res != 1: + # A sum containing 1 will also include a failure + return -5 + + if self.mount() != 0: + return -3 + + return 0 + + def getDeviceDir(self): + return self.devidex + + def getDeviceName(self): + return self.getDeviceDir() + "disc" + + # the HDD idle poll daemon. + # as some harddrives have a buggy standby timer, we are doing this by hand here. + # first, we disable the hardware timer. then, we check every now and then if + # any access has been made to the disc. If there has been no access over a specifed time, + # we set the hdd into standby. + def readStats(self): + l = open("/sys/block/%s/stat" % self.device).read() + (nr_read, _, _, _, nr_write) = l.split()[:5] + return int(nr_read), int(nr_write) + + def startIdle(self): + self.last_access = time.time() + self.last_stat = 0 + self.is_sleeping = False + from enigma import eTimer + + # disable HDD standby timer + Console().ePopen(("hdparm", "hdparm", "-S0", (self.devidex + "disc"))) + self.timer = eTimer() + self.timer.callback.append(self.runIdle) + self.idle_running = True + self.setIdleTime(self.max_idle_time) # kick the idle polling loop + + def runIdle(self): + if not self.max_idle_time: + return + t = time.time() + + idle_time = t - self.last_access + + stats = self.readStats() + print "nr_read", stats[0], "nr_write", stats[1] + l = sum(stats) + print "sum", l, "prev_sum", self.last_stat + + if l != self.last_stat: # access + print "hdd was accessed since previous check!" + self.last_stat = l + self.last_access = t + idle_time = 0 + self.is_sleeping = False + else: + print "hdd IDLE!" + + print "[IDLE]", idle_time, self.max_idle_time, self.is_sleeping + if idle_time >= self.max_idle_time and not self.is_sleeping: + self.setSleep() + self.is_sleeping = True + + def setSleep(self): + Console().ePopen(("hdparm", "hdparm", "-y", (self.devidex + "disc"))) + + def setIdleTime(self, idle): + self.max_idle_time = idle + if self.idle_running: + if not idle: + self.timer.stop() + else: + self.timer.start(idle * 100, False) # poll 10 times per period. + + def isSleeping(self): + return self.is_sleeping + +class Partition: + def __init__(self, mountpoint, device = None, description = "", force_mounted = False): + self.mountpoint = mountpoint + self.description = description + self.force_mounted = force_mounted + self.is_hotplug = force_mounted # so far; this might change. + self.device = device + + def stat(self): + return statvfs(self.mountpoint) def free(self): - pass + try: + s = self.stat() + return s.f_bavail * s.f_bsize + except OSError: + return None + + def total(self): + try: + s = self.stat() + return s.f_blocks * s.f_bsize + except OSError: + return None + + def mounted(self): + # THANK YOU PYTHON FOR STRIPPING AWAY f_fsid. + # TODO: can os.path.ismount be used? + if self.force_mounted: + return True + procfile = tryOpen("/proc/mounts") + for n in procfile.readlines(): + if n.split(' ')[1] == self.mountpoint: + return True + return False + +DEVICEDB = \ + {"dm8000": + { + # dm8000: + "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.1/1-1.1:1.0": "Front USB Slot", + "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.2/1-1.2:1.0": "Back, upper USB Slot", + "/devices/platform/brcm-ehci.0/usb1/1-1/1-1.3/1-1.3:1.0": "Back, lower USB Slot", + "/devices/platform/brcm-ehci-1.1/usb2/2-1/2-1:1.0/host1/target1:0:0/1:0:0:0": "DVD Drive", + }, + "dm800": + { + # dm800: + "/devices/platform/brcm-ehci.0/usb1/1-2/1-2:1.0": "Upper USB Slot", + "/devices/platform/brcm-ehci.0/usb1/1-1/1-1:1.0": "Lower USB Slot", + }, + "dm7025": + { + # dm7025: + "/devices/pci0000:00/0000:00:14.1/ide1/1.0": "CF Card Slot", #hdc + "/devices/pci0000:00/0000:00:14.1/ide0/0.0": "Internal Harddisk" + } + } + +class HarddiskManager: + def __init__(self): + self.hdd = [ ] + self.cd = "" + self.partitions = [ ] + + self.on_partition_list_change = CList() + + self.enumerateBlockDevices() - \ No newline at end of file + # currently, this is just an enumeration of what's possible, + # this probably has to be changed to support automount stuff. + # still, if stuff is mounted into the correct mountpoints by + # external tools, everything is fine (until somebody inserts + # a second usb stick.) + p = [ + ("/media/hdd", _("Harddisk")), + ("/media/card", _("Card")), + ("/media/cf", _("Compact Flash")), + ("/media/mmc1", _("MMC Card")), + ("/media/net", _("Network Mount")), + ("/media/ram", _("Ram Disk")), + ("/media/usb", _("USB Stick")), + ("/", _("Internal Flash")) + ] + + self.partitions.extend([ Partition(mountpoint = x[0], description = x[1]) for x in p ]) + + def getBlockDevInfo(self, blockdev): + devpath = "/sys/block/" + blockdev + error = False + removable = False + blacklisted = False + is_cdrom = False + partitions = [] + try: + removable = bool(int(open(devpath + "/removable").read())) + dev = int(open(devpath + "/dev").read().split(':')[0]) + if dev in (7, 31): # loop, mtdblock + blacklisted = True + if blockdev[0:2] == 'sr': + is_cdrom = True + if blockdev[0:2] == 'hd': + try: + media = open("/proc/ide/%s/media" % blockdev).read() + if "cdrom" in media: + is_cdrom = True + except IOError: + error = True + # check for partitions + if not is_cdrom: + for partition in listdir(devpath): + if partition[0:len(blockdev)] != blockdev: + continue + partitions.append(partition) + else: + self.cd = blockdev + except IOError: + error = True + # check for medium + medium_found = True + try: + open("/dev/" + blockdev).close() + except IOError, err: + if err.errno == 159: # no medium present + medium_found = False + + return error, blacklisted, removable, is_cdrom, partitions, medium_found + + def enumerateBlockDevices(self): + print "enumerating block devices..." + for blockdev in listdir("/sys/block"): + error, blacklisted, removable, is_cdrom, partitions, medium_found = self.getBlockDevInfo(blockdev) + print "found block device '%s':" % blockdev, + if error: + print "error querying properties" + elif blacklisted: + print "blacklisted" + elif not medium_found: + print "no medium" + else: + print "ok, removable=%s, cdrom=%s, partitions=%s, device=%s" % (removable, is_cdrom, partitions, blockdev) + + self.addHotplugPartition(blockdev) + for part in partitions: + self.addHotplugPartition(part) + + def getAutofsMountpoint(self, device): + return "/autofs/%s/" % (device) + + def addHotplugPartition(self, device, physdev = None): + if not physdev: + dev, part = self.splitDeviceName(device) + try: + physdev = readlink("/sys/block/" + dev + "/device")[5:] + except OSError: + physdev = dev + print "couldn't determine blockdev physdev for device", device + + # device is the device name, without /dev + # physdev is the physical device path, which we (might) use to determine the userfriendly name + description = self.getUserfriendlyDeviceName(device, physdev) + + p = Partition(mountpoint = self.getAutofsMountpoint(device), description = description, force_mounted = True, device = device) + self.partitions.append(p) + self.on_partition_list_change("add", p) + + # see if this is a harddrive + l = len(device) + if l and not device[l-1].isdigit(): + error, blacklisted, removable, is_cdrom, partitions, medium_found = self.getBlockDevInfo(device) + if not blacklisted and not removable and not is_cdrom and medium_found: + self.hdd.append(Harddisk(device)) + self.hdd.sort() + SystemInfo["Harddisk"] = len(self.hdd) > 0 + + def removeHotplugPartition(self, device): + mountpoint = self.getAutofsMountpoint(device) + for x in self.partitions[:]: + if x.mountpoint == mountpoint: + self.partitions.remove(x) + self.on_partition_list_change("remove", x) + l = len(device) + if l and not device[l-1].isdigit(): + for hdd in self.hdd: + if hdd.device == device: + hdd.stop() + self.hdd.remove(hdd) + break + SystemInfo["Harddisk"] = len(self.hdd) > 0 + + def HDDCount(self): + return len(self.hdd) + + def HDDList(self): + list = [ ] + for hd in self.hdd: + hdd = hd.model() + " - " + hd.bus() + cap = hd.capacity() + if cap != "": + hdd += " (" + cap + ")" + list.append((hdd, hd)) + return list + + def getCD(self): + return self.cd + + def getMountedPartitions(self, onlyhotplug = False): + parts = [x for x in self.partitions if (x.is_hotplug or not onlyhotplug) and x.mounted()] + devs = set([x.device for x in parts]) + for devname in devs.copy(): + if not devname: + continue + dev, part = self.splitDeviceName(devname) + if part and dev in devs: # if this is a partition and we still have the wholedisk, remove wholedisk + devs.remove(dev) + + # return all devices which are not removed due to being a wholedisk when a partition exists + return [x for x in parts if not x.device or x.device in devs] + + def splitDeviceName(self, devname): + # 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. + dev = devname[:3] + part = devname[3:] + for p in part: + if not p.isdigit(): + return devname, 0 + return dev, part and int(part) or 0 + + def getUserfriendlyDeviceName(self, dev, phys): + dev, part = self.splitDeviceName(dev) + description = "External Storage %s" % dev + try: + description = open("/sys" + phys + "/model").read().strip() + except IOError, s: + print "couldn't read model: ", s + from Tools.HardwareInfo import HardwareInfo + for physdevprefix, pdescription in DEVICEDB.get(HardwareInfo().device_name,{}).items(): + if phys.startswith(physdevprefix): + description = pdescription + + # not wholedisk and not partition 1 + if part and part != 1: + description += " (Partition %d)" % part + return description + + def addMountedPartition(self, device, desc): + already_mounted = False + for x in self.partitions[:]: + if x.mountpoint == device: + already_mounted = True + if not already_mounted: + self.partitions.append(Partition(mountpoint = device, description = desc)) + + def removeMountedPartition(self, mountpoint): + for x in self.partitions[:]: + if x.mountpoint == mountpoint: + self.partitions.remove(x) + self.on_partition_list_change("remove", x) + +harddiskmanager = HarddiskManager()