X-Git-Url: https://git.cweiske.de/enigma2.git/blobdiff_plain/9388629a4f48442984dcf3dc0f2c244c6633618c..c7e822df550005a8b359604d005d8da74b937152:/lib/python/Components/Harddisk.py diff --git a/lib/python/Components/Harddisk.py b/lib/python/Components/Harddisk.py index 9c695a23..9cf9b4a2 100644 --- a/lib/python/Components/Harddisk.py +++ b/lib/python/Components/Harddisk.py @@ -2,6 +2,8 @@ from os import system, listdir, statvfs, popen, makedirs, readlink, stat, major, from Tools.Directories import SCOPE_HDD, resolveFilename from Tools.CList import CList from SystemInfo import SystemInfo +import string, time +from Components.Console import Console def tryOpen(filename): try: @@ -17,22 +19,27 @@ class Harddisk: tmp = procfile.readline().split(':') s_major = int(tmp[0]) s_minor = int(tmp[1]) + self.max_idle_time = 0 + self.idle_running = False for disc in listdir("/dev/discs"): path = readlink('/dev/discs/'+disc) - devidex = '/dev'+path[2:]+'/' - disc = devidex+'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 - print "new Harddisk", device, self.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 bus(self): - ide_cf = self.device.find("hd") == 0 and self.devidex.find("host0") == -1 # 7025 specific - internal = self.device.find("hd") == 0 and self.devidex + ide_cf = self.device.find("hd") == 0 and self.devidex2.find("host0") == -1 # 7025 specific + internal = self.device.find("hd") == 0 if ide_cf: ret = "External (CF)" elif internal: @@ -90,7 +97,7 @@ class Harddisk: line = procfile.readline() if line == "": break - if line.startswith(self.devidex): + if line.startswith(self.devidex) or line.startswith(self.devidex2): parts = line.strip().split(" ") try: stat = statvfs(parts[1]) @@ -203,13 +210,78 @@ class Harddisk: 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 = int(l[:8].strip()) + nr_write = int(l[4*9:4*9+8].strip()) + return nr_read, 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 + + l = sum(self.readStats()) + + if l != self.last_stat: # access + self.last_stat = l + self.last_access = t + self.idle_time = 0 + self.is_sleeping = False + + #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 * 250, False) # poll 4 times per period. + + def isSleeping(self): + return self.is_sleeping class Partition: - def __init__(self, mountpoint, description = "", force_mounted = False): + 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) @@ -239,10 +311,19 @@ class Partition: return True return False +DEVICEDB = \ + { + # 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", + } + class HarddiskManager: def __init__(self): self.hdd = [ ] - + self.cd = "" self.partitions = [ ] self.on_partition_list_change = CList() @@ -295,39 +376,66 @@ class HarddiskManager: if partition[0:len(blockdev)] != blockdev: continue partitions.append(partition) + else: + self.cd = blockdev except IOError: error = True - return error, blacklisted, removable, is_cdrom, partitions + # 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 = self.getBlockDevInfo(blockdev) + 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, blockdev) + + self.addHotplugPartition(blockdev) for part in partitions: - self.addHotplugPartition(part, part) + self.addHotplugPartition(part) def getAutofsMountpoint(self, device): return "/autofs/%s/" % (device) - def addHotplugPartition(self, device, description): - p = Partition(mountpoint = self.getAutofsMountpoint(device), description = description, force_mounted = True) + 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 device[l-1] not in ('0','1','2','3','4','5','6','7','8','9'): - error, blacklisted, removable, is_cdrom, partitions = self.getBlockDevInfo(device) - if not blacklisted and not removable and not is_cdrom: + if l and device[l-1] not in string.digits: + 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["Harddisc"] = len(self.hdd) > 0 + SystemInfo["Harddisk"] = len(self.hdd) > 0 def removeHotplugPartition(self, device): mountpoint = self.getAutofsMountpoint(device) @@ -336,13 +444,13 @@ class HarddiskManager: self.partitions.remove(x) self.on_partition_list_change("remove", x) l = len(device) - if l and device[l-1] not in ('0','1','2','3','4','5','6','7','8','9'): + if l and device[l-1] not in string.digits: idx = 0 for hdd in self.hdd: if hdd.device == device: del self.hdd[idx] break - SystemInfo["Harddisc"] = len(self.hdd) > 0 + SystemInfo["Harddisk"] = len(self.hdd) > 0 def HDDCount(self): return len(self.hdd) @@ -357,7 +465,45 @@ class HarddiskManager: list.append((hdd, hd)) return list + def getCD(self): + return self.cd + def getMountedPartitions(self, onlyhotplug = False): - return [x for x in self.partitions if (x.is_hotplug or not onlyhotplug) and x.mounted()] + 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 p not in string.digits: + 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 + for physdevprefix, pdescription in DEVICEDB.items(): + if phys.startswith(physdevprefix): + description = pdescription + + # not wholedisk and not partition 1 + if part and part != 1: + description += " (Partition %d)" % part + return description harddiskmanager = HarddiskManager()