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linux/drivers/usb/core/hcd.h

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Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
USB: mutual exclusion for EHCI init and port resets 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>
2007-10-10 16:27:07 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
usb: add the concept of default authorization to USB hosts This introduces /sys/bus/devices/usb*/authorized_default; it dictates what is going to be the default authorization state for devices connected to the host. User space can set that using the sysfs file. We hook to the root hub instead of to the device controller as it is quite easy to get to it in sysfs from the device structure (device 5-4.3 is usb5) vs. backtracking to the controller device. By default it is set to be 'authorized' (!0) for normal, wired USB devices and 'unauthorized' (0) for Wireless USB devices. As suggested by Adrian Bunk, make authorized_default static Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-31 20:33:58 -07:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
usbcore: trim down usb_bus structure As part of the ongoing program to flatten out the HCD bus-glue layer, this patch (as771b) eliminates the hcpriv, release, and kref fields from struct usb_bus. hcpriv and release were not being used for anything worthwhile, and kref has been moved into the enclosing usb_hcd structure. Along with those changes, the patch gets rid of usb_bus_get and usb_bus_put, replacing them with usb_get_hcd and usb_put_hcd. The one interesting aspect is that the dev_set_drvdata call was removed from usb_put_hcd, where it clearly doesn't belong. This means the driver private data won't get reset to NULL. It shouldn't cause any problems, since the private data is undefined when no driver is bound. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-08-30 11:32:52 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
usbcore: trim down usb_bus structure As part of the ongoing program to flatten out the HCD bus-glue layer, this patch (as771b) eliminates the hcpriv, release, and kref fields from struct usb_bus. hcpriv and release were not being used for anything worthwhile, and kref has been moved into the enclosing usb_hcd structure. Along with those changes, the patch gets rid of usb_bus_get and usb_bus_put, replacing them with usb_get_hcd and usb_put_hcd. The one interesting aspect is that the dev_set_drvdata call was removed from usb_put_hcd, where it clearly doesn't belong. This means the driver private data won't get reset to NULL. It shouldn't cause any problems, since the private data is undefined when no driver is bound. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-08-30 11:32:52 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] usbcore support for root-hub IRQ instead of polling This is a revised version of an earlier patch to add support to usbcore for driving root hubs by interrupts rather than polling. There's a temporary flag added to struct usb_hcd, marking devices whose drivers are aware of the new mechanism. By default that flag doesn't get set so drivers will continue to see the same polling behavior as before. This way we can convert the HCDs one by one to use interrupt-based event reporting, and the temporary flag can be removed when they're all done. Also included is a small change to the hcd_disable_endpoint routine. Although endpoints normally shouldn't be disabled while a controller is suspended, it's legal to do so when the controller's driver is being rmmod'ed. Lastly the patch adds a new callback, .hub_irq_enable, for use by HCDs where the root hub's port-change interrupts are level-triggered rather than edge-triggered. The callback is invoked each time khubd has finished processing a root hub, to let the HCD know that the interrupt can safely be re-enabled. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-21 15:56:37 -04:00
USB: separate autosuspend from external suspend This patch (as866) adds new entry points for external USB device suspend and resume requests, as opposed to internally-generated autosuspend or autoresume. It also changes the existing remote-wakeup code paths to use the new routines, since remote wakeup is not the same as autoresume. As part of the change, it turns out to be necessary to do remote wakeup of root hubs from a workqueue. We had been using khubd, but it does autoresume rather than an external resume. Using the ksuspend_usb_wq workqueue for this purpose seemed a logical choice. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-03-13 16:37:30 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] USB: Fix USB suspend/resume crasher (#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>
2005-11-25 09:59:46 +11:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] usbcore support for root-hub IRQ instead of polling This is a revised version of an earlier patch to add support to usbcore for driving root hubs by interrupts rather than polling. There's a temporary flag added to struct usb_hcd, marking devices whose drivers are aware of the new mechanism. By default that flag doesn't get set so drivers will continue to see the same polling behavior as before. This way we can convert the HCDs one by one to use interrupt-based event reporting, and the temporary flag can be removed when they're all done. Also included is a small change to the hcd_disable_endpoint routine. Although endpoints normally shouldn't be disabled while a controller is suspended, it's legal to do so when the controller's driver is being rmmod'ed. Lastly the patch adds a new callback, .hub_irq_enable, for use by HCDs where the root hub's port-change interrupts are level-triggered rather than edge-triggered. The callback is invoked each time khubd has finished processing a root hub, to let the HCD know that the interrupt can safely be re-enabled. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-21 15:56:37 -04:00
wusb: hub code recognizes wusb ports This patch enables the USB stack to recognize WUSB devices (from a WUSB HCD) and assigns them the proper speed setting (USB_SPEED_VARIABLE). 1. Introduce usb_hcd->wireless to mark a host controller instance as being wireless, and thus having wireless 'fake' ports. [discarded previous model of using a reserved bit in the port_stat struct to do this; thanks to Alan Stern for indicating the proper way to do it]. 2. Introduce hub.c:hub_is_wusb() that tests if a hub is a WUSB root hub (WUSB doesn't have non-root hubs). New code being pushed to linuxuwb.org requires this patch to connect WUSB devices. Signed-off-by: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-08-25 19:35:29 -07:00
usb: add the concept of default authorization to USB hosts This introduces /sys/bus/devices/usb*/authorized_default; it dictates what is going to be the default authorization state for devices connected to the host. User space can set that using the sysfs file. We hook to the root hub instead of to the device controller as it is quite easy to get to it in sysfs from the device structure (device 5-4.3 is usb5) vs. backtracking to the controller device. By default it is set to be 'authorized' (!0) for normal, wired USB devices and 'unauthorized' (0) for Wireless USB devices. As suggested by Adrian Bunk, make authorized_default static Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-31 20:33:58 -07:00
[PATCH] usbcore support for root-hub IRQ instead of polling This is a revised version of an earlier patch to add support to usbcore for driving root hubs by interrupts rather than polling. There's a temporary flag added to struct usb_hcd, marking devices whose drivers are aware of the new mechanism. By default that flag doesn't get set so drivers will continue to see the same polling behavior as before. This way we can convert the HCDs one by one to use interrupt-based event reporting, and the temporary flag can be removed when they're all done. Also included is a small change to the hcd_disable_endpoint routine. Although endpoints normally shouldn't be disabled while a controller is suspended, it's legal to do so when the controller's driver is being rmmod'ed. Lastly the patch adds a new callback, .hub_irq_enable, for use by HCDs where the root hub's port-change interrupts are level-triggered rather than edge-triggered. The callback is invoked each time khubd has finished processing a root hub, to let the HCD know that the interrupt can safely be re-enabled. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-21 15:56:37 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] usbcore: Remove hub_set_power_budget This patch removes the hub_set_power_budget routine, which was used by a couple of HCDs to indicate that the root hub was running on battery power. In its place is a new field added to struct usb_hcd, which HCDs can set before the root hub is registered. Special-case code in the hub driver knows to look at this field when configuring a root hub. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-25 11:18:32 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
usbcore: trim down usb_bus structure As part of the ongoing program to flatten out the HCD bus-glue layer, this patch (as771b) eliminates the hcpriv, release, and kref fields from struct usb_bus. hcpriv and release were not being used for anything worthwhile, and kref has been moved into the enclosing usb_hcd structure. Along with those changes, the patch gets rid of usb_bus_get and usb_bus_put, replacing them with usb_get_hcd and usb_put_hcd. The one interesting aspect is that the dev_set_drvdata call was removed from usb_put_hcd, where it clearly doesn't belong. This means the driver private data won't get reset to NULL. It shouldn't cause any problems, since the private data is undefined when no driver is bound. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-08-30 11:32:52 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 14:55:46 +01:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] usbcore PCI glue updates for PM 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(-)
2005-09-22 22:38:16 -07:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] usbcore PCI glue updates for PM 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(-)
2005-09-22 22:38:16 -07:00
[PATCH] USB: hcd suspend uses pm_message_t This patch includes minor "sparse -Wbitwise" updates for the PCI based HCDs. Almost all of them involve just changing the second parameter of the suspend() method to a pm_message_t ... the others relate to how the EHCI code walks in-memory data structures. (There's a minor bug fixed there too ... affecting the big-endian sysfs async schedule dump.) 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> Index: gregkh-2.6/drivers/usb/core/hcd.h ===================================================================
2005-04-18 17:39:23 -07:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] usbcore PCI glue updates for PM 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(-)
2005-09-22 22:38:16 -07:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
USB: Properly unregister reboot notifier in case of failure in ehci hcd 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>
2006-08-08 17:24:08 -07:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
USB: make HCDs responsible for managing endpoint queues 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>
2007-08-08 11:48:02 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] USB: Rename hcd->hub_suspend to hcd->bus_suspend This patch (as580) is perhaps the only result from the long discussion I had with David about his changes to the root-hub suspend/resume code. It renames the hub_suspend and hub_resume methods in struct usb_hcd to bus_suspend and bus_resume. These are more descriptive names, since the methods really do suspend or resume an entire USB bus, and less likely to be confused with the hub_suspend and hub_resume routines in hub.c. It also takes David's advice about removing the layer of bus glue, where those methods are called. And it implements a related change that David made to the other HCDs but forgot to put into dummy_hcd. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-13 17:08:02 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] usbcore support for root-hub IRQ instead of polling This is a revised version of an earlier patch to add support to usbcore for driving root hubs by interrupts rather than polling. There's a temporary flag added to struct usb_hcd, marking devices whose drivers are aware of the new mechanism. By default that flag doesn't get set so drivers will continue to see the same polling behavior as before. This way we can convert the HCDs one by one to use interrupt-based event reporting, and the temporary flag can be removed when they're all done. Also included is a small change to the hcd_disable_endpoint routine. Although endpoints normally shouldn't be disabled while a controller is suspended, it's legal to do so when the controller's driver is being rmmod'ed. Lastly the patch adds a new callback, .hub_irq_enable, for use by HCDs where the root hub's port-change interrupts are level-triggered rather than edge-triggered. The callback is invoked each time khubd has finished processing a root hub, to let the HCD know that the interrupt can safely be re-enabled. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-21 15:56:37 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
USB: make HCDs responsible for managing endpoint queues 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>
2007-08-08 11:48:02 -04:00
USB: remove struct usb_operations All of the currently-supported USB host controller drivers use the HCD bus-glue framework. As part of the program for flattening out the glue layer, this patch (as769) removes the usb_operations structure. All function calls now go directly to the HCD routines (slightly renamed to remain within the "usb_" namespace). The patch also removes usb_alloc_bus(), because it's not useful in the HCD framework and it wasn't referenced anywhere. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-08-30 11:27:36 -04:00
USB: Eliminate urb->status usage! 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>
2007-08-24 15:42:24 -04:00
USB: break apart flush_endpoint and disable_endpoint This patch (as988) breaks usb_hcd_endpoint_disable() apart into two routines. The first, usb_hcd_flush_endpoint() does the -ESHUTDOWN unlinking of all URBs in the endpoint's queue and waits for them to complete. The second, usb_hcd_disable_endpoint() -- renamed for better grammatical style -- merely calls the HCD's endpoint_disable method. The changeover is easy because the routine currently has only one caller. This separation of function will be exploited in the following patch: When a device is suspended, the core will be able to cancel all outstanding URBs for that device while leaving the HCD's endpoint-related data structures intact for later. As an added benefit, HCDs no longer need to check for existing URBs in their endpoint_disable methods. It is now guaranteed that there will be none. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-09-10 11:33:05 -04:00
USB: remove struct usb_operations All of the currently-supported USB host controller drivers use the HCD bus-glue framework. As part of the program for flattening out the glue layer, this patch (as769) removes the usb_operations structure. All function calls now go directly to the HCD routines (slightly renamed to remain within the "usb_" namespace). The patch also removes usb_alloc_bus(), because it's not useful in the HCD framework and it wasn't referenced anywhere. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-08-30 11:27:36 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
usbcore: trim down usb_bus structure As part of the ongoing program to flatten out the HCD bus-glue layer, this patch (as771b) eliminates the hcpriv, release, and kref fields from struct usb_bus. hcpriv and release were not being used for anything worthwhile, and kref has been moved into the enclosing usb_hcd structure. Along with those changes, the patch gets rid of usb_bus_get and usb_bus_put, replacing them with usb_get_hcd and usb_put_hcd. The one interesting aspect is that the dev_set_drvdata call was removed from usb_put_hcd, where it clearly doesn't belong. This means the driver private data won't get reset to NULL. It shouldn't cause any problems, since the private data is undefined when no driver is bound. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-08-30 11:32:52 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
USB: Properly unregister reboot notifier in case of failure in ehci hcd 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>
2006-08-08 17:24:08 -07:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] USB: hcd suspend uses pm_message_t This patch includes minor "sparse -Wbitwise" updates for the PCI based HCDs. Almost all of them involve just changing the second parameter of the suspend() method to a pm_message_t ... the others relate to how the EHCI code walks in-memory data structures. (There's a minor bug fixed there too ... affecting the big-endian sysfs async schedule dump.) 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> Index: gregkh-2.6/drivers/usb/core/hcd.h ===================================================================
2005-04-18 17:39:23 -07:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
USB: Properly unregister reboot notifier in case of failure in ehci hcd 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>
2006-08-08 17:24:08 -07:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] gfp_t: drivers/usb Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-21 03:21:58 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
IRQ: Maintain regs pointer globally rather than passing to IRQ handlers Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 14:55:46 +01:00
[PATCH] usbcore support for root-hub IRQ instead of polling This is a revised version of an earlier patch to add support to usbcore for driving root hubs by interrupts rather than polling. There's a temporary flag added to struct usb_hcd, marking devices whose drivers are aware of the new mechanism. By default that flag doesn't get set so drivers will continue to see the same polling behavior as before. This way we can convert the HCDs one by one to use interrupt-based event reporting, and the temporary flag can be removed when they're all done. Also included is a small change to the hcd_disable_endpoint routine. Although endpoints normally shouldn't be disabled while a controller is suspended, it's legal to do so when the controller's driver is being rmmod'ed. Lastly the patch adds a new callback, .hub_irq_enable, for use by HCDs where the root hub's port-change interrupts are level-triggered rather than edge-triggered. The callback is invoked each time khubd has finished processing a root hub, to let the HCD know that the interrupt can safely be re-enabled. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-21 15:56:37 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] usbcore support for root-hub IRQ instead of polling This is a revised version of an earlier patch to add support to usbcore for driving root hubs by interrupts rather than polling. There's a temporary flag added to struct usb_hcd, marking devices whose drivers are aware of the new mechanism. By default that flag doesn't get set so drivers will continue to see the same polling behavior as before. This way we can convert the HCDs one by one to use interrupt-based event reporting, and the temporary flag can be removed when they're all done. Also included is a small change to the hcd_disable_endpoint routine. Although endpoints normally shouldn't be disabled while a controller is suspended, it's legal to do so when the controller's driver is being rmmod'ed. Lastly the patch adds a new callback, .hub_irq_enable, for use by HCDs where the root hub's port-change interrupts are level-triggered rather than edge-triggered. The callback is invoked each time khubd has finished processing a root hub, to let the HCD know that the interrupt can safely be re-enabled. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-21 15:56:37 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] USB: fix in usb_calc_bus_time This patch does the same swap, i.e. use the ISO macro if (isoc). Additionally, it fixes the return value - the usb_calc_bus_time function returns the time in nanoseconds (I didn't notice that before) while the HS_USECS and HS_USECS_ISO are microseconds. This fixes the function to return nanoseconds always, and adjusts ehci-q.c (the only high-speed caller of the function) to wrap the call in NS_TO_US(). Signed-off-by: Dan Streetman <ddstreet@ieee.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-29 12:18:28 -07:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] USB: tweak highspeed timing calculations Use a more correct calculation for highspeed bit times. http://bugzilla.kernel.org/show_bug.cgi?id=3604 This sort if thing might start to make a difference now that the high speed periodic scheduler is more complete -- and even getting used. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-08-11 19:37:01 -07:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] USB: tweak highspeed timing calculations Use a more correct calculation for highspeed bit times. http://bugzilla.kernel.org/show_bug.cgi?id=3604 This sort if thing might start to make a difference now that the high speed periodic scheduler is more complete -- and even getting used. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-08-11 19:37:01 -07:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] USB: fix in usb_calc_bus_time This patch does the same swap, i.e. use the ISO macro if (isoc). Additionally, it fixes the return value - the usb_calc_bus_time function returns the time in nanoseconds (I didn't notice that before) while the HS_USECS and HS_USECS_ISO are microseconds. This fixes the function to return nanoseconds always, and adjusts ehci-q.c (the only high-speed caller of the function) to wrap the call in NS_TO_US(). Signed-off-by: Dan Streetman <ddstreet@ieee.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-07-29 12:18:28 -07:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] USB: convert a bunch of USB semaphores to mutexes the patch below converts a bunch of semaphores-used-as-mutex in the USB code to mutexes Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-11 15:55:29 +01:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] usbcore support for root-hub IRQ instead of polling This is a revised version of an earlier patch to add support to usbcore for driving root hubs by interrupts rather than polling. There's a temporary flag added to struct usb_hcd, marking devices whose drivers are aware of the new mechanism. By default that flag doesn't get set so drivers will continue to see the same polling behavior as before. This way we can convert the HCDs one by one to use interrupt-based event reporting, and the temporary flag can be removed when they're all done. Also included is a small change to the hcd_disable_endpoint routine. Although endpoints normally shouldn't be disabled while a controller is suspended, it's legal to do so when the controller's driver is being rmmod'ed. Lastly the patch adds a new callback, .hub_irq_enable, for use by HCDs where the root hub's port-change interrupts are level-triggered rather than edge-triggered. The callback is invoked each time khubd has finished processing a root hub, to let the HCD know that the interrupt can safely be re-enabled. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-21 15:56:37 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] USB: Rename hcd->hub_suspend to hcd->bus_suspend This patch (as580) is perhaps the only result from the long discussion I had with David about his changes to the root-hub suspend/resume code. It renames the hub_suspend and hub_resume methods in struct usb_hcd to bus_suspend and bus_resume. These are more descriptive names, since the methods really do suspend or resume an entire USB bus, and less likely to be confused with the hub_suspend and hub_resume routines in hub.c. It also takes David's advice about removing the layer of bus glue, where those methods are called. And it implements a related change that David made to the other HCDs but forgot to put into dummy_hcd. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-13 17:08:02 -04:00
[PATCH] USB: fix pm patches with CONFIG_PM off part 1 With CONFIG_PM=n: drivers/built-in.o(.text+0x2a69c): In function `ohci_hub_control': drivers/usb/host/ohci-hub.c:539: undefined reference to `.usb_hcd_resume_root_hub' drivers/built-in.o(.text+0x2b920): In function `ohci_irq': drivers/usb/host/ohci-hcd.c:726: undefined reference to `.usb_hcd_resume_root_hub' Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-23 23:04:25 -07:00
[PATCH] USB: central handling for host controllers that were reset during suspend/resume This patch (as515b) adds a routine to usbcore to simplify handling of host controllers that lost power or were reset during suspend/resume. The new core routine marks all the child devices of the root hub as NOTATTACHED and tells khubd to disconnect the device structures as soon as possible. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-11-14 11:45:38 -05:00
USB: separate root and non-root suspend/resume This patch (as916) completes the separation of code paths for suspend and resume of root hubs as opposed to non-root devices. Root hubs will be power-managed through their bus_suspend and bus_resume methods, whereas normal devices will use usb_port_suspend() and usb_port_resume(). Changes to the hcd_bus_{suspend,resume} routines mostly represent motion of code that was already present elsewhere. They include: Adding debugging log messages, Setting the device state appropriately, and Adding a resume recovery time delay. Changes to the port-suspend and port-resume routines in hub.c include: Removal of checks for root devices (since they will never be triggered), and Removal of checks for NULL or invalid device pointers (these were left over from earlier kernel versions and aren't needed at all). Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-05-30 15:34:36 -04:00
[PATCH] USB: Rename hcd->hub_suspend to hcd->bus_suspend This patch (as580) is perhaps the only result from the long discussion I had with David about his changes to the root-hub suspend/resume code. It renames the hub_suspend and hub_resume methods in struct usb_hcd to bus_suspend and bus_resume. These are more descriptive names, since the methods really do suspend or resume an entire USB bus, and less likely to be confused with the hub_suspend and hub_resume routines in hub.c. It also takes David's advice about removing the layer of bus glue, where those methods are called. And it implements a related change that David made to the other HCDs but forgot to put into dummy_hcd. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-13 17:08:02 -04:00
[PATCH] USB: fix pm patches with CONFIG_PM off part 1 With CONFIG_PM=n: drivers/built-in.o(.text+0x2a69c): In function `ohci_hub_control': drivers/usb/host/ohci-hub.c:539: undefined reference to `.usb_hcd_resume_root_hub' drivers/built-in.o(.text+0x2b920): In function `ohci_irq': drivers/usb/host/ohci-hcd.c:726: undefined reference to `.usb_hcd_resume_root_hub' Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-23 23:04:25 -07:00
[PATCH] USB: Rename hcd->hub_suspend to hcd->bus_suspend This patch (as580) is perhaps the only result from the long discussion I had with David about his changes to the root-hub suspend/resume code. It renames the hub_suspend and hub_resume methods in struct usb_hcd to bus_suspend and bus_resume. These are more descriptive names, since the methods really do suspend or resume an entire USB bus, and less likely to be confused with the hub_suspend and hub_resume routines in hub.c. It also takes David's advice about removing the layer of bus glue, where those methods are called. And it implements a related change that David made to the other HCDs but forgot to put into dummy_hcd. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-13 17:08:02 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
[PATCH] better USB_MON dependencies This makes the USB_MON less confusing. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-23 11:36:56 +02:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
USB: reorganize urb->status use in usbmon This patch (as978) reorganizes the way usbmon uses urb->status. It now accepts the status value as an argument. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-24 15:41:41 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
USB: reorganize urb->status use in usbmon This patch (as978) reorganizes the way usbmon uses urb->status. It now accepts the status value as an argument. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-24 15:41:41 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
USB: reorganize urb->status use in usbmon This patch (as978) reorganizes the way usbmon uses urb->status. It now accepts the status value as an argument. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-24 15:41:41 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
USB: reorganize urb->status use in usbmon This patch (as978) reorganizes the way usbmon uses urb->status. It now accepts the status value as an argument. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-24 15:41:41 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
USB: mutual exclusion for EHCI init and port resets 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>
2007-10-10 16:27:07 -04:00
Linux-2.6.12-rc2 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!
2005-04-16 15:20:36 -07:00
USB: mutual exclusion for EHCI init and port resets 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>
2007-10-10 16:27:07 -04:00