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path: root/drivers/usb/core/hcd-pci.c
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* USB: fix codingstyle issues in drivers/usb/core/hcd-pci.cGreg Kroah-Hartman2008-02-011-62/+67
| | | | | | Fixes a number of coding style issues in the hcd-pci.c file. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: mark USB drivers as being GPL onlyGreg Kroah-Hartman2008-02-011-5/+5
| | | | | | | | | | | | Over two years ago, the Linux USB developers stated that they believed there was no way to create a USB kernel driver that was not under the GPL. This patch moves the USB apis to enforce that decision. There are no known closed source USB drivers in the wild, so this patch should cause no problems. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: don't change HC power state for a FREEZEAlan Stern2008-02-011-0/+6
| | | | | | | | | | | This patch (as1016) prevents PCI-based host controllers from undergoing a power-state change during a FREEZE or a PRETHAW. Such changes are needed only during a SUSPEND. 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>
* USB: use IRQF_DISABLED for HCD interrupt handlersAlan Stern2007-12-171-1/+1
| | | | | | | | | | | | | | | | Host controller IRQs are supposed to be serviced with interrupts disabled. This patch (as1026) adds an IRQF_DISABLED flag to all the controller drivers that lack it. It also replaces the spin_lock_irqsave() and spin_unlock_irqrestore() calls in uhci_irq() with simple spin_lock() and spin_unlock(). This fixes Bugzilla #9335. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: remove references to dev.power.power_stateAlan Stern2007-07-131-1/+2
| | | | | | | | | | | | This revised patch (as891b) removes two unnecessary references to intf->dev.power.power_state from usb-storage, and replaces a reference to root_hub->dev.power.power_state with a check of hcd->state. This is in preparation for the removal of dev.power.power_state, which is already deprecated. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* USB: Properly unregister reboot notifier in case of failure in ehci hcdAleksey Gorelov2006-09-271-0/+16
| | | | | | | | | | | | | | | | | | | | | | If some problem occurs during ehci startup, for instance, request_irq fails, echi hcd driver tries it best to cleanup, but fails to unregister reboot notifier, which in turn leads to crash on reboot/poweroff. The following patch resolves this problem by not using reboot notifiers anymore, but instead making ehci/ohci driver get its own shutdown method. For PCI, it is done through pci glue, for everything else through platform driver glue. One downside: sa1111 does not use platform driver stuff, and does not have its own shutdown hook, so no 'shutdown' is called for it now. I'm not sure if it is really necessary on that platform, though. Signed-off-by: Aleks Gorelov <dared1st@yahoo.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* PM: USB HCDs use PM_EVENT_PRETHAWDavid Brownell2006-09-261-1/+1
| | | | | | | | | | | | | This teaches several USB host controller drivers to treat PRETHAW as a chip reset since the controller, and all devices connected to it, are no longer in states compatible with how the snapshotted suspend() left them. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] irq-flags: usb: Use the new IRQF_ constantsThomas Gleixner2006-07-021-1/+1
| | | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-301-1/+0Star
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] pm: print name of failed suspend functionAndrew Morton2006-04-141-4/+3Star
| | | | | | | | | | | | | | | | | | | | Print more diagnostic info to help identify the source of power management suspend failures. Example: usb_hcd_pci_suspend(): pci_set_power_state+0x0/0x1af() returns -22 pci_device_suspend(): usb_hcd_pci_suspend+0x0/0x11b() returns -22 suspend_device(): pci_device_suspend+0x0/0x34() returns -22 Work-in-progress. It needs lots more suspend_report_result() calls sprinkled everywhere. Cc: Patrick Mochel <mochel@digitalimplant.org> Cc: Pavel Machek <pavel@ucw.cz> Cc: Nigel Cunningham <nigel@suspend2.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] powerpc: Kill _machine and hard-coded platform numbersBenjamin Herrenschmidt2006-03-281-2/+2
| | | | | | | | | | | | | | | | This removes statically assigned platform numbers and reworks the powerpc platform probe code to use a better mechanism. With this, board support files can simply declare a new machine type with a macro, and implement a probe() function that uses the flattened device-tree to detect if they apply for a given machine. We now have a machine_is() macro that replaces the comparisons of _machine with the various PLATFORM_* constants. This commit also changes various drivers to use the new macro instead of looking at _machine. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] USB: remove usbcore-specific wakeup flagsDavid Brownell2006-03-201-3/+8
| | | | | | | | | This makes usbcore use the driver model wakeup flags for host controllers and for their root hubs. Since previous patches have removed all users of the HCD flags they replace, this converts the last users of those flags. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: Fix USB suspend/resume crasher (#2)Benjamin Herrenschmidt2005-11-301-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch closes the IRQ race and makes various other OHCI & EHCI code path safer vs. suspend/resume. I've been able to (finally !) successfully suspend and resume various Mac models, with or without USB mouse plugged, or plugging while asleep, or unplugging while asleep etc... all without a crash. Alan, please verify the UHCI bit I did, I only verified that it builds. It's very simple so I wouldn't expect any issue there. If you aren't confident, then just drop the hunks that change uhci-hcd.c I also made the patch a little bit more "safer" by making sure the store to the interrupt register that disables interrupts is not posted before I set the flag and drop the spinlock. Without this patch, you cannot reliably sleep/wakeup any recent Mac, and I suspect PCs have some more sneaky issues too (they don't frankly crash with machine checks because x86 tend to silently swallow PCI errors but that won't last afaik, at least PCI Express will blow up in those situations, but the USB code may still misbehave). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] USB: ohci, move ppc asic tweaks nearer pciDavid Brownell2005-11-241-2/+36
| | | | | | | | | | | | This should fix a suspend/resume issues that appear with OHCI on some PPC hardware. The PCI layer should doesn't have the hooks needed for such ASIC-specific hooks (in this case, software clock gating), so this moves the code to do that into hcd-pci.c ... where it can be done after the relevant PCI PM state transition (to/from D3). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] USB: move CONFIG_USB_DEBUG checks into the MakefileGreg Kroah-Hartman2005-11-171-7/+0Star
| | | | | | | | | This lets us remove a lot of code in the drivers that were all checking the same thing. It also found some bugs in a few of the drivers, which has been fixed up. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] usbcore PCI glue updates for PMDavid Brownell2005-10-291-56/+50Star
| | | | | | | | | | | | | | | | | | | | | This updates the PCI glue to address the new and simplified usbcore suspend semantics, where CONFIG_USB_SUSPEND becomes irrelevant to HCDs because hcd->hub_suspend() will always be called. - Removes now-unneeded recursion support - Go back to ignoring faults reported by the wakeup calls; we expect them to fail sometimes, and that's just fine. The PCI HCDs will need simple changes to catch up to this, like being able to ignore the setting of CONFIG_USB_SUSPEND. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> drivers/usb/core/hcd-pci.c | 106 +++++++++++++++++++++------------------------ drivers/usb/core/hcd.h | 6 +- 2 files changed, 53 insertions(+), 59 deletions(-)
* [PATCH] usb/core/hcd-pci.c: don't free_irq() on suspendDaniel Ritz2005-09-301-9/+0Star
| | | | | | | | the free_irq() in USB suspend breaks resume on some setups where USB (ohci/ehci) shares the interrupt with an other device. Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] PCI: start paying attention to a lot of pci function return valuesGreg Kroah-Hartman2005-09-081-5/+19
| | | | Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] PCI: remove CONFIG_PCI_NAMESAdrian Bunk2005-09-081-4/+0Star
| | | | | | | This patch removes CONFIG_PCI_NAMES. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [ACPI] S3 Suspend to RAM: fix driver suspend/resume methodsDavid Shaohua Li2005-07-121-0/+1
| | | | | | | | | | | | | | | Drivers should do this: .suspend() pci_disable_device() .resume() pci_enable_device() http://bugzilla.kernel.org/show_bug.cgi?id=3469 Signed-off-by: David Shaohua Li <shaohua.li@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* [PATCH] usb resume fixesDavid Brownell2005-04-191-60/+91
| | | | | | | | | | | | | | | | | | | | | | | | This has a variety of updates to the shared suspend/resume code for PCI based USB host controllers. - Cope with pm_message_t replacing the target system state. This is actually a loss of functionality; PCI D1 and D2 states will no longer be used, and it's no longer knowable that D3cold is on the way so power will be lost. - Most importantly, some of the resume paths are reworked and cleaned up. They're now an exact mirror of suspend paths, and more care is taken to ensure the hardware is reactivated before the hardware re-enables interrupts. Plus comment and diagnostic cleanups; there are some nasty cases here especially combined with swsusp, now they're somewhat commented. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> diff -puN drivers/usb/core/hcd-pci.c~usb-resume-fixes drivers/usb/core/hcd-pci.c
* Linux-2.6.12-rc2Linus Torvalds2005-04-171-0/+358
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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