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path: root/drivers/usb/host
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2007-10-25USB: remove new OHCI build warningsDavid Brownell1-1/+8
Remove various newly-introduced compiler warnings for OHCI. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-25USB: fix ssb_ohci_probe() build bugIngo Molnar1-1/+1
fix ssb_ohci_probe() build bug: drivers/built-in.o: In function `ssb_ohci_probe': ohci-hcd.c:(.text+0xbff39): undefined reference to `ssb_device_enable' ohci-hcd.c:(.text+0xbff6f): undefined reference to `ssb_admatch_base' ohci-hcd.c:(.text+0xbff8b): undefined reference to `ssb_admatch_size' ohci-hcd.c:(.text+0xbffe5): undefined reference to `ssb_device_disable' [...] the reason was that this Kconfig combination was allowed: CONFIG_SSB=m CONFIG_USB_OHCI_HCD=y CONFIG_USB_OHCI_HCD_SSB=y the fix is to require a modular USB_OHCI_HCD build when SSB is modular. Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-25USB: fix scheduling of Iso URBs in uhci-hcdAlan Stern1-5/+14
This patch (as1003) changes uhci-hcd to treat the URB_ISO_ASAP flag the same as other host controller drivers, namely, to schedule an Iso URB for the first available time slot that hasn't already expired. URBs in which the flag isn't set will be scheduled for the first slot following the last URB, even if it has expired. This fixes a problem reported by Martin Bachem. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-19Fix misspellings of "system", "controller", "interrupt" and "necessary".Robert P. J. Day2-2/+2
Fix the various misspellings of "system", controller", "interrupt" and "[un]necessary". Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-18Add missing newlines to some uses of dev_<level> messagesJoe Perches1-1/+1
Found these while looking at printk uses. Add missing newlines to dev_<level> uses Add missing KERN_<level> prefixes to multiline dev_<level>s Fixed a wierd->weird spelling typo Added a newline to a printk Signed-off-by: Joe Perches <joe@perches.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Mark M. Hoffman <mhoffman@lightlink.com> Cc: Roland Dreier <rolandd@cisco.com> Cc: Tilman Schmidt <tilman@imap.cc> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: Stephen Hemminger <shemminger@linux-foundation.org> Cc: Greg KH <greg@kroah.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: David Brownell <david-b@pacbell.net> Cc: James Smart <James.Smart@Emulex.Com> Cc: Andrew Vasquez <andrew.vasquez@qlogic.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-13Fix ohci-ssb with !CONFIG_PMAl Viro1-0/+2
ohci_bus_{suspend,resume} exists only if we have CONFIG_PM; do the same thing as other subdrivers... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-12USB: mutual exclusion for EHCI init and port resetsAlan Stern1-0/+8
This patch (as999) fixes a problem that sometimes shows up when host controller driver modules are loaded in the wrong order. If ehci-hcd happens to initialize an EHCI controller while the companion OHCI or UHCI controller is in the middle of a port reset, the reset can fail and the companion may get very confused. The patch adds an rw-semaphore and uses it to keep EHCI initialization and port resets mutually exclusive. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: David Brownell <david-b@pacbell.net> Cc: David Miller <davem@davemloft.net> Cc: Dely L Sy <dely.l.sy@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: ohci SSB bus glueMichael Buesch3-1/+280
This adds SSB bus glue for the USB OHCI HCD. Signed-off-by: Michael Buesch <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: ehci build fixes on au1xxx, ppc-socDavid Brownell2-8/+4
Cleanup: references to two PM routines (and HCD entry points) that no longer exist are swapped with their replacements. Evidently au1xxx and ppc-soc EHCI support doesn't get compiled with power management very much, or these build bugs would have been patched long ago. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: add runtime frame_no quirk for big-endian OHCIValentine Barshak3-8/+15
Add OHCI big endian frame_no quirk. The frame_no value stored in the HCCA is a 16 bit field at a specific offset, but since not all CPUs can do 16-bit memory accesses it's used as a 32 bit field. And that's why big-endian OHCI must shift 16 bits ... unless the spec is not followed. Currently there's one MPC52xx platform that doesn't need the shift. This patch adds a new "big endian frame_no" quirk to control that at runtime. Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com> Acked-by: Dale Farnsworth <dale@farnsworth.org> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: r8a66597-hcd: fix driver removingYoshihiro Shimoda1-1/+1
Fixed the problem that accessed register of this controller after having called iounmap(). Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: r8a66597-hcd: fix endian problemYoshihiro Shimoda1-3/+3
Fixed the problem that does not work in the big endian machine. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: r8a66597-hcd: fix Class or Vendor RequestYoshihiro Shimoda1-1/+10
Fixed the problem that does not work in the case of bRequest = 0x05 in Class or Vendor Request. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: ELAN U132 Host Controller Driver: convert sw_lock to mutexMatthias Kaehlcke1-17/+17
The ELAN U132 Host Controller Driver uses the semaphore sw_lock as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: Eliminate urb->status usage!Alan Stern8-63/+32
This patch (as979) removes the last vestiges of urb->status from the host controller drivers and the root-hub emulator. Now the field doesn't get set until just before the URB's completion routine is called. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: reorganize urb->status use in r8a66597-hcdAlan Stern1-31/+30
This patch (as977) reorganizes the way r8a66597-hcd sets urb->status. It now keeps the information in a local variable until the last moment. Parts of this patch were written by Yoshihiro Shimoda. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: reorganize urb->status use in sl811-hcdAlan Stern1-21/+11
This patch (as976) reorganizes the way sl811-hcd sets urb->status. It now keeps the information in a local variable until the last moment. The patch also improves the handling of faults during the status stage of a control transfer, since it no longer needs to retain the error information from the earlier stages. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: reorganize urb->status use in ohci-hcdAlan Stern3-33/+28
This patch (as975) reorganizes the way ohci-hcd sets urb->status. It now keeps the information in a local variable until the last moment. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: reorganize urb->status use in ehci-hcdAlan Stern2-31/+35
This patch (as974) reorganizes the way ehci-hcd sets urb->status. It now keeps the information in a local variable until the last moment. The patch also simplifies the handling of -EREMOTEIO, since the only use of that code is to set the do_status flag. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: avoid the donelist after an error in ohci-hcdAlan Stern1-16/+8
This patch (as972) changes ohci-hcd so that after an error occurs, the remaining TDs for the URB will be skipped over entirely instead of going through the donelist. This enables the driver to give back the URB as soon as the error is detected, avoiding the need to store the error status in urb->status. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: add urb->unlinked fieldAlan Stern8-113/+92
This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: centralize -EREMOTEIO handlingAlan Stern7-51/+9
This patch (as969) continues the ongoing changes to the way HCDs report URB statuses. The programming interface has been simplified by making usbcore responsible for clearing urb->hcpriv and for setting -EREMOTEIO status when an URB with the URB_SHORT_NOT_OK flag ends up as a short transfer. By moving the work out of the HCDs, this removes a fair amount of repeated code. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: remove Iso status value in uhci-hcdAlan Stern2-9/+3
This patch (968) changes the way uhci-hcd reports status for Isochronous URBs. Until now urb->status has been set to the last detected error code. But other HCDs don't do this; they leave the status set to 0 and report errors only in the individual iso packet descriptors. So this patch removes the extra computation and makes uhci-hcd behave like the others. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: minor fixes for r8a66597 driverAlan Stern1-21/+19
This patch (as967) makes a few relatively minor changes to the r8a66597 driver: finish_request() does nothing but call done(), so merge the two routines. Detect and report -EOVERFLOW errors. Fix the calculation that checks for short packets. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: EHCI restart speedupMarcelo Tosatti2-5/+2
It is not necessary to powerdown the ports on ehci_pci_reinit() when the chip reset already did that. Removing this saves 20ms during restart after poweroff paths (which OLPC uses a lot). To ensure driver startup then behaves consistently, force a reset during driver startup. (Not doing this was an accident of some previous changes to the init sequence.) Make the corresponding change in the PS3 support. It's not clear what ehci-fsl should do here; it has similar code to the PS3. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: <rvinson@mvista.com> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: remove unnecessary tests in isp116x and sl811Alan Stern2-16/+0
This patch (as962) cleans up some code I forgot to remove earlier in the isp116x and sl811 HCDs. There is no longer any need to check for unlink-during-submit; it can't happen since the endpoint queues are now under the protection of the HCD-private spinlock. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: make HCDs responsible for managing endpoint queuesAlan Stern10-137/+263
This patch (as954) implements a suggestion of David Brownell's. Now the host controller drivers are responsible for linking and unlinking URBs to/from their endpoint queues. This eliminates the possiblity of strange situations where usbcore thinks an URB is linked but the HCD thinks it isn't. It also means HCDs no longer have to check for URBs being dequeued before they were fully enqueued. In addition to the core changes, this requires changing every host controller driver and the root-hub URB handler. For the most part the required changes are fairly small; drivers have to call usb_hcd_link_urb_to_ep() in their urb_enqueue method, usb_hcd_check_unlink_urb() in their urb_dequeue method, and usb_hcd_unlink_urb_from_ep() before giving URBs back. A few HCDs make matters more complicated by the way they split up the flow of control. In addition some method interfaces get changed. The endpoint argument for urb_enqueue is now redundant so it is removed. The unlink status is required by usb_hcd_check_unlink_urb(), so it has been added to urb_dequeue. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Tony Olech <tony.olech@elandigitalsystems.com> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: OHCI handles more ZFMicro quirksMike Nuss5-75/+253
The ZF Micro OHCI controller exhibits unexpected behavior that seems to be related to high load. Under certain conditions, the controller will complete a TD, remove it from the endpoint's queue, and fail to add it to the donelist. This causes the endpoint to appear to stop responding. Worse, if the device is removed while in that state, OHCI will hang while waiting for the orphaned TD to complete. The situation is not recoverable without rebooting. This fix enhances the scope of the existing OHCI_QUIRK_ZFMICRO flag: 1. A watchdog routine periodically scans the OHCI structures to check for orphaned TDs. In these cases the TD is taken back from the controller and completed normally. 2. If a device is removed while the endpoint is hung but before the watchdog catches the situation, any outstanding TDs are taken back from the controller in the 'sanitize' phase. The ohci-hcd driver used to print "INTR_SF lossage" in this situation; this changes it to the universally accurate "ED unlink timeout". Other instances of this message presumably have different root causes. Both this Compaq quirk and a NEC quirk are now properly compiled out for non-PCI builds of this driver. Signed-off-by: Mike Nuss <mike@terascala.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12USB: Clean up duplicate includes in drivers/usb/Jesper Juhl1-1/+0
This patch cleans up duplicate includes in drivers/usb/ Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-09drivers/firmware: const-ify DMI API and internalsJeff Garzik1-1/+1
Three main sets of changes: 1) dmi_get_system_info() return value should have been marked const, since callers should not be changing that data. 2) const-ify DMI internals, since DMI firmware tables should, whenever possible, be marked const to ensure we never ever write to that data area. 3) const-ify DMI API, to enable marking tables const where possible in low-level drivers. And if we're really lucky, this might enable some additional optimizations on the part of the compiler. The bulk of the changes are #2 and #3, which are interrelated. #1 could have been a separate patch, but it was so small compared to the others, it was easier to roll it into this changeset. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-08-22USB: make EHCI initialize properly on PPC SOCsMike Nuss2-4/+23
Correctly initialize the on-chip EHCI controller on the AMCC PPC440EPx. Fix "USB 0.0" initialization message, and properly put the controller into a known state before starting it. Add "FIXME" comment to the au1xxx bus glue which is doing the same wrong thing here. (Who maintains that, now that AMD sold off Alchemy?) Remove some false copyright attributions which were somehow placed in the au1xxx bus glue then copied into ppc-soc. Signed-off-by: Mike Nuss <mike@terascala.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: K.Boge <karsten.boge@amd.com> Cc: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22USB: ohci, fix oddball gcc warningDavid Brownell1-1/+1
Some versions of GCC recently grew annoying warnings about constants. This gets rid of that warning from the OHCI driver. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22usb: typo in usb R8A66597 HCD configM4rkusXXL1-1/+1
Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22usb: r8a66597-hcd: fix up error path.Paul Mundt1-2/+0
Currently when registration fails we're left with a stray reference to release_mem_region(), this leads to the following case: r8a66597_hcd r8a66597_hcd: irq 13, io base 0x18040000 drivers/usb/host/r8a66597-hcd.c: register access fail. r8a66597_hcd r8a66597_hcd: startup error -6 r8a66597_hcd r8a66597_hcd: USB bus 1 deregistered drivers/usb/host/r8a66597-hcd.c: Failed to add hcd Trying to free nonexistent resource <0000000018040000-0000000018040000> This fixes it up. Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22USB: u132-hcd.c - Fix a warning when CONFIG_PM=nGabriel C1-0/+3
I noticed this warning with CONFING_PM=n ... drivers/usb/host/u132-hcd.c:1525: warning: 'port_power' defined but not used ... Signed-off-by: Gabriel Craciunescu <nix.or.die@googlemail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-20Revert "USB: EHCI cpufreq fix"Linus Torvalds5-215/+0
This reverts commit 196705c9bbc03540429b0f7cf9ee35c2f928a534. It was reported to cause a regression by Daniel Exner, and Arjan van de Ven points out that we actually already have infrastructure in place for setting limits on acceptable DMA latency that would be the much more correct fix for the problem with some Broadcom EHCI controllers. Fixed up trivial conflicts due to the changes to support big-endian host controller descriptors in drivers/usb/host/{ehci-sched.c,ehci.h}. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-20Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds5-231/+229
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (44 commits) USB: drivers/usb/storage/dpcm.c whitespace cleanup USB: r8a66597-hcd: fixes some problem USB: change name of spinlock in hcd.c USB: move routines in hcd.c USB: misc: uss720: clean up urb->status usage USB: misc: usbtest: clean up urb->status usage USB: misc: usblcd: clean up urb->status usage USB: misc: phidgetmotorcontrol: clean up urb->status usage USB: misc: phidgetkit: clean up urb->status usage USB: misc: legousbtower: clean up urb->status usage USB: misc: ldusb: clean up urb->status usage USB: misc: iowarrior: clean up urb->status usage USB: misc: ftdi-elan: clean up urb->status usage USB: misc: auerswald: clean up urb->status usage USB: misc: appledisplay: clean up urb->status usage USB: misc: adtux: clean up urb->status usage USB: core: message: clean up urb->status usage USB: image: microtek: clean up urb->status usage USB: image: mdc800: clean up urb->status usage USB: storage: onetouch: clean up urb->status usage ...
2007-07-20mm: Remove slab destructors from kmem_cache_create().Paul Mundt1-1/+1
Slab destructors were no longer supported after Christoph's c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been BUGs for both slab and slub, and slob never supported them either. This rips out support for the dtor pointer from kmem_cache_create() completely and fixes up every single callsite in the kernel (there were about 224, not including the slab allocator definitions themselves, or the documentation references). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-19USB: r8a66597-hcd: fixes some problemYoshihiro Shimoda2-101/+96
This patch incorporates some updates. Updates include: - Fix the problem that control transfer might fail - Change from GFP_KERNEL to GFP_ATOMIC - Clean up some coding style issue Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-19UHCI: short control URBs get a status stageAlan Stern1-21/+38
It has recently been pointed out that short control transfers should have a status stage, even if they generate an error because URB_SHORT_NOT_OK was set. This patch (as935) changes uhci-hcd to enable the status stage when this happens. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-19isp116x-hcd: prepare for urb->statusAlan Stern1-101/+86
This patch (as931b), adapted from a patch by Olav Kongas, makes a small set of conservative changes to the isp116x-hcd driver in preparation for the removal of urb->status. finish_request() is moved up in the source and is called as soon as the URB is known to have completed, rather than after all the active endpoints have been scanned. The status of a completed URB is kept in a local variable and copied to urb->status only when the URB is about to be given back. -EREMOTEIO error status for control transfers is set after the status stage rather than when the short packet arrives. Some unnecessary uses of urb->lock are removed. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: Olav Kongas <ok@artecdesign.ee> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-19USB: use mutex instead of semaphore in the ELAN U132 adapter driverMatthias Kaehlcke1-8/+9
The ELAN U132 adapter driver uses the semaphore u132_module_lock as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-19some kmalloc/memset ->kzalloc (tree wide)Yoann Padioleau2-4/+2
Transform some calls to kmalloc/memset to a single kzalloc (or kcalloc). Here is a short excerpt of the semantic patch performing this transformation: @@ type T2; expression x; identifier f,fld; expression E; expression E1,E2; expression e1,e2,e3,y; statement S; @@ x = - kmalloc + kzalloc (E1,E2) ... when != \(x->fld=E;\|y=f(...,x,...);\|f(...,x,...);\|x=E;\|while(...) S\|for(e1;e2;e3) S\) - memset((T2)x,0,E1); @@ expression E1,E2,E3; @@ - kzalloc(E1 * E2,E3) + kcalloc(E1,E2,E3) [akpm@linux-foundation.org: get kcalloc args the right way around] Signed-off-by: Yoann Padioleau <padator@wanadoo.fr> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Bryan Wu <bryan.wu@analog.com> Acked-by: Jiri Slaby <jirislaby@gmail.com> Cc: Dave Airlie <airlied@linux.ie> Acked-by: Roland Dreier <rolandd@cisco.com> Cc: Jiri Kosina <jkosina@suse.cz> Acked-by: Dmitry Torokhov <dtor@mail.ru> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Acked-by: Pierre Ossman <drzeus-list@drzeus.cx> Cc: Jeff Garzik <jeff@garzik.org> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Greg KH <greg@kroah.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-12USB: ohci-pnx4008: Remove unnecessary cast of return value of kzallocSuresh Jayaraman1-1/+1
Remove unnecessary cast of return value of kzalloc() in usb/host/ohci-pnx4008.c Signed-off-by: Suresh Jayaraman <sjayaraman@novell.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-12USB: Don't resume root hub if the controller is suspendedAlan Stern2-3/+6
Root hubs can't be resumed if their parent controller device is still suspended. This patch (as925) adds a check for that condition in hcd_bus_resume() and prevents it from being treated as a fatal controller failure. ehci-hcd is updated to add the corresponding test. Unnecessary debugging messages are removed from uhci-hcd and dummy-hcd. The error return code from dummy-hcd is changed to -ESHUTDOWN, the same as the others. ohci-hcd doesn't need any changes. Suspend handling in the non-PCI host drivers is somewhat hit-and-miss. This patch shouldn't have any effect on them. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-12ehci-hub: improved over-current recoveryChristian Engelmayer1-1/+16
According to the USB Specification Revision 2.0 chapter 11.12.5 a hub experiencing an over-current condition must place all affected ports in the powered-off state. It seems that some root hubs need port power to be cycled by software in order to get back to normal functionality after an over-current condition ... like the EHCI implementation on an MPC8343E. Signed-off-by: Christian Engelmayer <christian.engelmayer@frequentis.com> Signed-off-by: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-12USB: PS3: USB system-bus reworkGeoff Levand4-53/+162
USB HCD glue updates to reflect the new PS3 unifed device support. - Fixed remove() routine. - Added shutdown() routine. - Added request_mem_region() call. - Fixed MODULE_ALIAS(). - Made a proper fix for the hack done to support muti-platform in commit 48fda45120a819ca40cadc50144b55bff1c4c78d. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-12USB: Fix NEC OHCI chip silicon bugMichael Hanselmann5-14/+61
This patch fixes a silicon bug in some NEC OHCI chips. The bug appears at random times and is very, very difficult to reproduce. Without the following patch, Linux would shut the chip and its associated devices down. In Apple PowerBooks this leads to an unusable keyboard and mouse (SSH still working). The idea of restarting the chip is taken from public Darwin code. Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch> Cc: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-12USB: EHCI: Safe endianness for transfer buffers after reset in case of HUB ↵Vladimir Barinov2-2/+14
with TT This patch fixes the endianness select for transfer buffers in EHCI controllers that have Transaction Translator built in the hub. Also I cleaned it up to make rid of magic numbers. Signed-off-by: Vladimir Barinov <vbarinov@ru.mvista.com> Cc: <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-12USB: use function attribute __maybe_unusedDavid Rientjes2-13/+13
Substitute USB instances of __attribute__ ((unused)) functions with the newly introduced __maybe_unused. Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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