Commit Graph

2592 Commits

Author SHA1 Message Date
Yoshihiro Shimoda 828d55c58c USB: add support for SuperH OHCI
add support for SuperH OHCI.

supported CPU are:
 - SH7720
 - SH7721
 - SH7763

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:03 -08:00
Greg Kroah-Hartman 504b55cc8b USB: ftdi_sio: remove very old changelog entries from the file.
People keep trying to add entries to this section of the driver for
things.  That's what the Changelog is supposed to be for, not the .c
file.


Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:03 -08:00
Paul Chavent 7bd4b20c87 USB: usbserial: provide ezusb functions for an external module.
When building an external module, the ezusb_* functions are not defined
if we haven't loaded any built'in module that use them (whiteheat,
keyspan, ...).

This patch allow to build those functions even if we only have selected
the usbserial generic driver.

Signed-off-by: Paul Chavent <paul.chavent@fnac.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:03 -08:00
Alan Stern cd930c9314 USB: EHCI: add a short delay to the bus_suspend routine
This patch (as1031) adds a short delay to the bus-suspend routine in
ehci-hcd.  Without it some devices disconnect when they should
suspend.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:03 -08:00
Alan Stern f8fa7571a9 USB: EHCI: move del_timer_sync calls outside spinlocked region
This patch (as1030b) moves a del_timer_sync() call outside the scope of a
spinlock, where it could cause a deadlock, and adds a new
del_timer_sync() call for the new IAA watchdog timer (it was omitted
by mistake).

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>
2008-02-01 14:35:03 -08:00
Pete Zaitcev dd95b81411 USB: usbfs: struct async is a fixed size structure
The ISO descriptors are allocated separately in proc_submiturb for a fetch
from user mode, then tucked at the end of URB. This seems like a dead code.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:02 -08:00
David Brownell 79592b722e USB: ehci completes high speed ISO URBs sooner
This has some bugfixes for the EHCI driver's ISO transfer scanning
logic.  It was leaving ITDs and SITDs on the schedule too long, for
a few different reasons, which caused trouble.

  (a)	Look at all microframes for high speed transfers, not just
	the ones we expect to have finished.  This way transfers
	ending mid-frame will complete without needing another IRQ.
	This also minimizes bogus scheduling underruns (e.g. EL2NSYNC).

  (b)	When we encounter an ISO transfer (either speed, but this
	hits mostly at full speed) that's not yet been completed,
	immediately stop scanning; we've caught up to the hardware,
	no matter what other indications might say.

  (c)	Always clean up ITDs (for high speed transfers) when the HC
	is no longer running.

I'm not sure whether the last one has been observed before, but both
the others have been reported with "real world" audio and video code.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:02 -08:00
David Brownell aa16ca307e USB: ehci: minor ISO updates, always support split ISO
Small updates to the EHCI driver's ISO support:

 - Get rid of the Kconfig option for full speed ISO.  It may
   not be perfect yet, but it hasn't appeared to be dangerous
   and pretty much every configuration wants it.

 - Instead of two places to disable an empty periodic schedule
   after an ISO transfer completes, just have one.

 - After the periodic schedule is disabled, we can short-circuit
   the schedule scan ... it can't possibly have more work to do.

Assuming a typical config with split iso enabled, the only change
in behavior should be almost unobservable:  quicker termination
of periodic scans when the schedule gets emptied.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:02 -08:00
Karsten Wiese 3b6fcfd066 USB: ehci saves some memory in ISO transfer descriptors
In the EHCI driver, itd->usecs[8] is used in periodic_usecs(), indexed by
uframe.  For an ITD's unused uframes it is 0, else it contains the same
value as itd->stream->usecs.  To check if an ITD's uframe is used, we can
instead test itd->hw_transaction[uframe]:  if used, it will be nonzero no
matter what endianess is used.

This patch replaces those two uses, eliminates itd->usecs[], and saves
eight bytes from each ITD.

Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:02 -08:00
Vladimir Barinov 91bc4d31e8 USB: add ehci-ixp bus glue
EHCI Glue driver for Intel IXP4XX EHCI USB controller

Signed-off-by: Vladimir Barinov <vbarinov@ru.mvista.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:02 -08:00
Daniel Walker 18bcbcfe9c USB: misc: legousbtower: semaphore to mutex
The dev->sem conforms to mutex style usage. This patch converts it to use
the struct mutex type, and new API.

There is also a small style fix around this comment,

/* unlock here as tower_delete frees dev */

Where I broke the line up to meet the 80 char limit.

Signed-off-by: Daniel Walker <dwalker@mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:02 -08:00
Valentine Barshak da0e8fb00b USB: add ehci-ppc-of bus glue (device-tree aware)
This adds device-tree-aware ehci-ppc-of driver.
The code is based on the ehci-ppc-soc driver by
Stefan Roese <sr@denx.de>.

Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:01 -08:00
Dmitry Baryshkov 040fa1b962 USB: pxa2xx_udc: use debugfs not procfs
Use debugfs instead of /proc/driver/udc

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:01 -08:00
David Brownell f3db6e8203 USB: at91_udc uses generic GPIO calls; minor cleanup
Various small at91_udc cleanups:

 - Use generic GPIO calls, not older platform-specific ones
 - Use gpio_request()/gpio_free()
 - Use VERBOSE_DEBUG convention, not older VERBOSE
 - Fix sparse complaint about parameter type (changed to gfp_t)
 - Add missing newline to some rarely-seen debug messages
 - Fix some old cleanup bugs on probe() fault paths

Also add a mechanism whereby rm9200 gpios can drive the D+ pullup
through an inverting transistor, based on a patch from Steve Birtles.
Most UDC drivers supporting a GPIO based pullup should probably have
such an option, but testing it requries such a board in hand!

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Steve Birtles <arm_kernel_development@micromark.net.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:01 -08:00
David Brownell 4bde4a4c4f USB: ohci-at91 uses generic GPIO calls
Update the ohci-at91 bus glue to start understanding about the per-port
power switch GPIOs it's given (on the sam9263-ek and potentially other
boards).  For the moment this just claims them and forces them active
(assuming active-low power enables) whenever the HCD is loaded.

The assumption is still that board setup configures the GPIOs.  Using
gpio_request() tracks actual usage and guards against conflict.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:01 -08:00
Sarah Sharp 1512300689 USB: Export suspend statistics
This patch exports two statistics to userspace:
/sys/bus/usb/device/.../power/connected_duration
/sys/bus/usb/device/.../power/active_duration

connected_duration is the total time (in msec) that the device has
been connected.  active_duration is the total time the device has not
been suspended.  With these two statistics, tools like PowerTOP can
calculate the percentage time that a device is active, i.e. not
suspended or auto-suspended.

Users can also use the active_duration to check if a device is actually
autosuspended.  Currently, they can set power/level to auto and
power/autosuspend to a positive timeout, but there's no way to know from
userspace if a device was actually autosuspended without looking at the
dmesg output.  These statistics will be useful in creating an automated
userspace script to test autosuspend for USB devices.

Signed-off-by: Sarah Sharp <sarah.a.sharp@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:00 -08:00
Kevin Lloyd 228426edac USB: sierra driver - add update dtr logic
The following improvements were made:
 - Fixed control line issue where asserting DTR on ep5 would close ep2
 - Added support for calc_num_ports (will help support future composite
   devices)

Signed-off-by: Kevin Lloyd <linux@sierrawireless.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:00 -08:00
Harald Welte 20734345b3 USB: ftdi_sio: Support for more JTAG adaptors
[PATCH] ftdi_sio: add support for more FTDI based JTAG adaptors

There are more devices similar to the Olimex JTAG adaptor, in that the first
port of the FT2232C is used for JTAG, and only the second port is available as
UART.

I have thus renamed ftdi_olimex_{probe,quirk} to ftdi_jtag_{probe,quirk} and
added vendor/product ID's for the OpenMoko Neo1973 Debug Board as well as the
OOCDlink device.

I've also updated the KERN_INFO message sent to userspace to remove the word
'olimex' and an extra '\n' that was causing an empty line in dmesg.

Signed-off-by: Harald Welte <laforge@openmoko.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:00 -08:00
Alan Cox d5f5bcd425 USB: io_ti: clean up termios handling
Don't pass NULL into termios functions when calling them internally
Remove all the crap which then checks for NULL which can't occur now
Clear CMSPAR as it is not supported
Report the baud rate back to the caller properly (See FIXME someone with
the docs)

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:00 -08:00
Alan Cox 537699ef53 USB: ti_usb: termios cleanups
Remove internal NULL passing in termios code
Remove all the if checks it causes
Encode the baud rate back properly
Clear CMSPAR as it is not supported

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:35:00 -08:00
Alan Cox 65d063ab21 USB: mos7720: clean up termios
Remove lots of NULL checks that can no longer occur
Encode the baud rate back into the termios (again someone with docs see
FIXME to improve this further)

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:59 -08:00
David Brownell e057a35aa1 USB: fix HCD Kconfig goofage
Add a missing dependency which goofs up the xconfig display.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:59 -08:00
David Brownell 1440e0967d USB: gadget: at91_udc minor fix (there is no number six)
Fix a small glitch noted by Yannick Cote.  There is no endpoint number
six, so if a (broken) host wrongly tried to change or read status of
that endpoint, the driver could access reserved register space.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Yannick Cote <yanick@yanos.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:59 -08:00
Oliver Neukum e58679805d USB: fix NULL pointer dereference on drivers/usb/serial/whiteheat.c
Am Sonntag, 16. Dezember 2007 05:23:47 schrieb Andrew Morton:
> On Sat, 15 Dec 2007 07:08:52 -0800 (PST) bugme-daemon@bugzilla.kernel.org wrote:
> 
> > http://bugzilla.kernel.org/show_bug.cgi?id=9573
 
> > There's a null pointer dereference on drivers/usb/serial/whiteheat.c as
> > follows:
> > 
> > (1) line 613:  the test "if (port->tty)" implies that null is a legal value
> >     for "port->tty" at that point
> > 
> > (2) neither firm_open nor firm_purge initialize "port->tty"

drivers/usb/serial/usb-serial::serial_open() sets port->tty
The check for NULL is bogus. This patch removes the check.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:58 -08:00
David Brownell e7b13ec923 USB: gadget: ethernet error path potential oops fix
Fix potential (never-observed) oops on rare error path,
bugzilla #9594.  Fix uses the same test as used earlier.

Also make the adjacent "else" block look like an "else" block
instead of hiding like a bug.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:58 -08:00
David Brownell 340ba5f9ce USB: ehci potential oops fix on ARC/TDI cores
Kernel bugzilla entry #9569 reports a potential OOPS in some code
supporting the integrated root hub TT support used on ARC/TDI
derived cores.  (This seems to have been a longstanding issue.)

This patch cleans up usage of urb->dev->tt to avoid that potential
oops and also fixes some overly long lines.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:58 -08:00
Tzachi Perelstein e96ffe2f9d USB: add Marvell Orion USB host support
Some glue bits for the on-chip USB host controller in the Marvell Orion
family of ARM SoCs, which is basically EHCI compatible.

Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Reviewed-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:58 -08:00
Marcin Slusarz f570728f89 USB: ehci-hcd: fix sparse warning about shadowing 'status' symbol
fix warning:
drivers/usb/host/ehci-hcd.c:832:8: warning: symbol 'status' shadows an earlier one
drivers/usb/host/ehci-hcd.c:790:71: originally declared here

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:58 -08:00
Marcin Slusarz 0354c1acd8 USB: usb/storage/initializers.c: fix signedness difference
fix warnings:
drivers/usb/storage/initializers.c:83:26: warning: incorrect type in argument 5 (different signedness)
drivers/usb/storage/initializers.c:83:26:    expected unsigned int *act_len
drivers/usb/storage/initializers.c:83:26:    got int *<noident>
drivers/usb/storage/initializers.c:89:26: warning: incorrect type in argument 5 (different signedness)
drivers/usb/storage/initializers.c:89:26:    expected unsigned int *act_len
drivers/usb/storage/initializers.c:89:26:    got int *<noident>

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:57 -08:00
David Brownell 30bf54e62a USB: PS3: Fix EHCI ISO transfer bug
This adds a workaround for an issue reported with ISO transfers
on some EHCI controllers, most recently with VIA KT800 and PS3
EHCI silicon.

The issue is that the silicon doesn't necessarily seem to be done
using ISO DMA descriptors (itd, sitd) when it marks them inactive.
(One theory is that the ill-defined mechanism where hardware caches
periodic transfer descriptors isn't invalidating their state...)
With such silicon, quick re-use of those descriptors makes trouble.
Waiting until the next frame seems to be a sufficient workaround.

This patch ensures that the relevant descriptors aren't available
for immediate re-use.  It does so by not recycling them until after
issuing the completion callback which would reuse them by enqueueing
an URB and thus (re)allocating ISO DMA descriptors.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: Masashi Kimoto <Masashi_Kimoto@hq.scei.sony.co.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:57 -08:00
Joe Perches dc0d5c1e5c USB: Spelling fixes
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:57 -08:00
Dmitry Baryshkov d4a8d46d91 USB: gadget: pxa2xx_udc supports inverted vbus
Some boards (like e.g. Tosa) invert the VBUS-detection signal:
it's low when a host is supplying VBUS, and high otherwise.
Allow specifying whether gpio_vbus value is inverted.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:57 -08:00
Andrew Morton 26e109b0a9 USB: testing driver: don't free a locked mutex
Dopey thing to do and lockdep will (or should) warn.

Spotted by Daniel Walker.

Cc: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Cc: Daniel Walker <dwalker@mvista.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:57 -08:00
Matthias Kaehlcke 1cfab028af USB: testing driver: convert dev->sem to mutex
USB testing driver: convert semaphore dev->sem to the mutex API

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:56 -08:00
Nick Piggin 041509db39 USB: mon nopage
Convert USB mon driver from nopage to fault.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:56 -08:00
Alan Cox d0fab0ddf3 USB: mct232: speed, new termios and compliance cleanups
Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:56 -08:00
Alan Cox e7806e366b USB: keyspan_pda: clean up speed handling
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:56 -08:00
Alan Cox 3ec466b496 USB: belkin_sa: clean up for new style termios and speed handling, plus style
A tester with actual hardware would be useful

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:56 -08:00
Sarah Sharp fcf9e55e06 USB: pl2303: Add autosuspend support to pl2303 usb serial converter.
Signed-off-by: Sarah Sharp <saharabeara@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:56 -08:00
Sarah Sharp 3e152505a5 USB: pl2303: Move pl2303 vendor specific init to probe function.
Without this fix, the pl2303 usb-serial adapter would not suspend properly
unless it had been opened first.  A pl2303 type_1 chip will still break if the
system is hibernated while the RS-232 connector is powered by another system.
This was broken before, and a reset resume does not fix it.  All other suspend
and autosuspend scenarios work with ATEN pl2303 adaptors with HX and type_1 chips.

Signed-off-by: Sarah Sharp <saharabeara@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:55 -08:00
Sarah Sharp eb44da0b3a USB: pl2303: Cleanup FISH and SOUP macros in pl2303 driver.
Replace the FISH and SOUP macros that violated the macro guidelines in CodingStyle.
Turn them into function calls with clearer variable names.

Signed-off-by: Sarah Sharp <saharabeara@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:55 -08:00
Alan Stern caf29f6265 USB: dummy_hcd: change the default power budget
This patch (as1025) changes the default power budget for dummy-hcd to
500 mA and makes it a preprocessor parameter for easier testing.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:55 -08:00
Alan Stern 07d29b63ef USB: EHCI: add separate IAA watchdog timer
This patch (as1028) was mostly written by David Brownell; I made only
a few changes (extra log info and a small bug fix -- which might
account for why David's version had to be reverted).  It adds a new
watchdog timer to the ehci-hcd driver to be used exclusively for
detecting lost or missing IAA notifications.

Previously a shared timer had been used, which may have led to some
problems as reported by Christian Hoffmann.

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>
2008-02-01 14:34:55 -08:00
Alan Stern 2e2eb83ffd USB: add usbfs stubs for suspend and resume
This patch (as1022b) adds stub methods for suspend and resume to the
usbfs driver.  There isn't much they can do since there's no way to
inform a user task about the events.  But it's important to have the
stubs, because an upcoming change to usbcore will automatically unbind
drivers that don't have those methods when a suspend occurs.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:54 -08:00
Matthias Kaehlcke 241ca64fc5 USB: Edgeport USB Serial Converter: convert es_sem to mutex
Edgeport USB Serial Converter: convert semaphore es_sem to the
mutex API

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:53 -08:00
Alan Stern 852c4b43bd USB: updates to usb_reset_composite_device()
This patch (as1023) updates the code in usb_reset_composite_device():

	Some local variable declarations are moved to inner loops.

	The interface locks are not acquired.  This isn't necessary
	any more; its only reason was to prevent an interface from
	being suspended or resumed during the reset.  But now
	interface power management is controlled by the USB device
	lock, not by the interface lock.

	The check for whether the interface is registered is removed.
	There doesn't seem to be any reason for checking; a driver
	for a non-registered interface deserves to be informed of
	device resets just as much as any other.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:53 -08:00
Alan Stern 885e97478b USB: repair USBDEVFS_CONNECT ioctl
For as long as I've known about it, the USBDEVFS_CONNECT ioctl hasn't
done what it's supposed to.  The current code reprobes _all_ the
unbound USB interfaces; this patch (as1021) makes it reprobe only the
interface for which it was called.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:53 -08:00
Benjamin Herrenschmidt badef81922 usb: Remove OHCI useless masking/unmasking of WDH interrupt
The OHCI driver's IRQ handler, while processing a WDH interrupt, masks
and unmasks it.  I believe this is both broken (the write may still be
posted during the donelist processing it's trying to safeguard) and
useless as this IRQ may not be reissued until it's acked (unless this
legacy code is an uncommented workaround for some chip erratum).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:53 -08:00
Tony Jones 694cc2087e USB: convert ehci debug files to use debugfs instead of sysfs
We should not have multiple line files in sysfs, this moves the data to
debugfs instead, like the UHCI driver.

Signed-off-by: Tony Jones <tonyj@suse.de>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:53 -08:00
Tony Jones 684c19e0d9 USB: convert ohci debug files to use debugfs instead of sysfs
We should not have multiple line files in sysfs, this moves the data to
debugfs instead, like the UHCI driver.

Signed-off-by: Tony Jones <tonyj@suse.de>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-01 14:34:52 -08:00