Alan Stern [Tue, 19 Sep 2006 14:14:07 +0000 (10:14 -0400)]
USB: create new workqueue thread for USB autosuspend
This patch (as787) creates a new workqueue thread to handle delayed
USB autosuspend requests. Previously the code used keventd. However
it turns out that the hub driver's suspend routine calls
flush_scheduled_work(), making it a poor candidate for running in
keventd (the call immediately deadlocks). The solution is to use a
new thread instead of keventd.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
USB: add Raritan KVM USB Dongle to the HID_QUIRK_NOGET blacklist
During Installation the host tries to enumerate the keyboard/mouse
dongle for the Raritan KVM.At this time timeouts have been observed
Adding the Raritan KVM USB dongle to the blacklist fixes this issue.
USB: add SeaLevel 2106 SeaLINK support to ftdi_sio
We have a couple of these USB-Serial converters around; they're slightly
different from the 2104 models in that they can handle 500Kb/sec over RS422.
The existing ftdi driver seems to work just fine if we add in the
appropriate IDs.
Patch is against 2.6.17.6, but should apply cleanly to pretty much
anything recent.
Ian Abbott [Mon, 25 Sep 2006 13:19:19 +0000 (14:19 +0100)]
USB serial ftdi_sio: Add support for Tactrix OpenPort devices
This patch adds support for three OpenPort ECU data cables from Tactrix
Inc. to the ftdi_sio driver's device ID table. One of the PIDs was
supplied by Donour Sizemore on the ftdi-usb-sio-devel mailing list. The
other two were added by myself after examining the Windows driver software.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Attempting to read the ethernet ID directly from the eeprom somehow
confuses ADM8515. Subsequent read requests to either the eeprom or the MII
fail as well. Didn't dig much deeper, though. For example ADM8513 does
not experience this problem.
I used the fact that at power up the device is reading its ID automatically
(not true for older Pegasus based devices) and put it in the Ethernet ID
registers. So now the driver uses get_registers() instead of
read_eprom_word() if the device is Pegasus_II based one. Tested it with
all (Pegasus and Pegasus_II) gadgets i have and everything seems ok.
Cc: <jogeedaklown@yahoo.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-mmc
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-mmc:
[MMC] Don't check READY_FOR_DATA when reading
[MMC] MMC_CAP_BYTEBLOCK flag for non-log2 block sizes capable hosts
[MMC] Add multi block-write capability
[MMC] Remove data->blksz_bits member
[MMC] Convert mmci to use data->blksz rather than data->blksz_bits
Kevin Hilman [Thu, 21 Sep 2006 23:58:57 +0000 (00:58 +0100)]
[ARM] 3856/1: Add clocksource for Intel IXP4xx platforms
Enables the ixp4xx platforms to use Generic time-of-day.
Signed-off-by: Kevin Hilman <khilman@mvista.com> Acked-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Kevin Hilman [Thu, 21 Sep 2006 23:16:30 +0000 (00:16 +0100)]
[ARM] 3855/1: Add generic time support
This patch adds Generic time-of-day support for the ARM architecture.
The support is currently added using #ifdef's so that it can support
sub-arches that do not (yet) have a clocksource added. As sub-arches
add clocksource support, they should 'select GENERIC_TIME'
Signed-off-by: Deepak Saxena <dsaxena@mvista.com> Signed-off-by: Daniel Walker <dwalker@mvista.com> Signed-off-by: Kevin Hilman <khilman@mvista.com> Acked-by: John Stultz <johnstul@us.ibm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
In nommu mode, the exception vector location depends on the platforms.
Some of the implementations may have some special exception control
forwarding method in their ROM/flash and for some of them has its own
re-mapping mechanism by the h/w.
This patch introduces a special configuration CONFIG_CPU_HIGH_VECTOR which
turns on the CR_V bit in nommu mode. The CR_V bit is turned off by default.
This feature depends on CP15 and does not supported by ARM740.
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] nommu: abort handler fixup for !CPU_CP15_MMU cores.
There is no FSR/FAR register on no-CP15 or MPU cores. This patch adds a
dummy abort handler which returns zero for the base restored Data Abort
model !CPU_CP15_MMU cores. The abort-lv4t.S is still used with the fix-up
for the base updated Data Abort model cores.
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This patch removes the static memory mapping for the currently-unused
peripherals [Synchronous Serial, Timer/Counter unit], and for those
drivers that already ioremap() their registers [UART].
Also, the Ethernet driver now uses the platform_device resources but
doesn't yet use ioremap() so we need to pass it the virtual address
instead of the physical address.
Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Major cleanup of all s390 inline assemblies. They now have a common
coding style. Quite a few have been shortened, mainly by using register
asm variables. Use of the EX_TABLE macro helps as well. The atomic ops,
bit ops and locking inlines new use the Q-constraint if a newer gcc
is used. That results in slightly better code.
Thanks to Christian Borntraeger for proof reading the changes.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
A user space program can read uninitialised kernel memory
by appending to a file from a bad address and then reading
the result back. The cause is the copy_from_user function
that does not clear the remaining bytes of the kernel
buffer after it got a fault on the user space address.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
The clocksource infrastructure introduced with commit ad596171ed635c51a9eef829187af100cbf8dcf7 broke 31 bit s390.
The reason is that the do_div() primitive for 31 bit always
had a restriction: it could only divide an unsigned 64 bit
integer by an unsigned 31 bit integer. The clocksource code
now uses do_div() with a base value that has the most
significant bit set. The result is that clock->cycle_interval
has a funny value which causes the linux time to jump around
like mad.
The solution is "obvious": implement a proper __div64_32
function for 31 bit s390.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Andrew Victor [Wed, 27 Sep 2006 15:18:18 +0000 (16:18 +0100)]
[ARM] 3868/1: AT91 hardware header update
This patch adds the hardware register definitions for the TWI (I2C)
controller found on the AT91RM9200 and AT91SAM9xx processors.
It also defines the AIC Fast-Forcing registers added to the AT91SAM9's.
Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Andrew Victor [Wed, 27 Sep 2006 12:23:00 +0000 (13:23 +0100)]
[ARM] 3867/1: AT91 GPIO update
This patch makes the AT91 gpio.c support processor-generic (AT91RM9200
and AT91SAM9xxx). The GPIO controllers supported by a particular AT91
processor are defined in the processor-specific file and are registered
with gpio.c at startup.
Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Andrew Victor [Wed, 27 Sep 2006 09:50:59 +0000 (10:50 +0100)]
[ARM] 3866/1: AT91 clock update
This patch makes the AT91 clock.c support processor-generic (AT91RM9200
and AT91SAM9xxx). The clocks supported by a particular AT91 processor
are defined in the processor-specific file and are registered with
clock.c at startup.
Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Andrew Victor [Wed, 27 Sep 2006 08:44:11 +0000 (09:44 +0100)]
[ARM] 3865/1: AT91RM9200 header updates
This is more preparation for adding support for the new Atmel AT91SAM9
processors.
Changes include:
- Replace AT91_BASE_* with AT91RM9200_BASE_*
- Replace AT91_ID_* with AT91RM9200_ID_*
- ROM, SRAM and UHP address definitions moved to at91rm9200.h.
- The raw AT91_P[ABCD]_* definitions are now depreciated in favour of
the GPIO API.
Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
David Anders [Tue, 26 Sep 2006 16:46:00 +0000 (17:46 +0100)]
[ARM] 3862/2: S3C2410 - add basic power management support for AML M5900 series
this patch registers the wakeup irq, sets a gpio pin to indicate the
status of system for suspend/resume operations, and adds the machine to
the supported machines for use with the simtec-pm
Signed-off-by: David Anders <danders@amltd.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (48 commits)
[PATCH] bonding: update version number
[PATCH] git-netdev-all: pc300_tty build fix
[PATCH] Make PC300 WAN driver compile again
[PATCH] Modularize generic HDLC
[PATCH] more s2io __iomem annotations
[PATCH] restore __iomem annotations in e1000
[PATCH] 64bit bugs in s2io
[PATCH] bonding: Fix primary selection error at enslavement time
[PATCH] bonding: Don't mangle LACPDUs
[PATCH] bonding: Validate probe replies in ARP monitor
[PATCH] bonding: Don't release slaves when master is admin down
[PATCH] bonding: Add priv_flag to avoid event mishandling
[PATCH] bonding: Handle large hard_header_len
[PATCH] bonding: Remove unneeded NULL test
[PATCH] bonding: Format fix in seq_printf call
[PATCH] bonding: Convert delay value from s16 to int
[PATCH] bonding: Allow bonding to enslave a 10 Gig adapter
Delete unused drivers/net/gt64240eth.h
[PATCH] skge: fiber support
[PATCH] fix possible NULL ptr deref in forcedeth
...
Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
[libata] Don't use old-EH ->eng_timeout() hook when not needed
[libata] sata_mv: fix oops by filling in missing hook
[libata] One more s/15/ATA_SECONDARY_IRQ/ substitution
[libata] pata_serverworks: fill in ->irq_clear hook
[PATCH] pata_serverworks: correct PCI ID in cable detection table
[PATCH] libata-sff: use our IRQ defines
[PATCH] libata-eh: Remove layering violation and duplication when handling absent ports
[PATCH] libata: tighten rules for legacy dependancies
[PATCH] libata: refuse to register IRQless ports
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (129 commits)
[PATCH] USB Storage: fix Rio Karma eject support build error
USB: Airprime driver improvements to allow full speed EvDO transfers
USB: remove OTG build warning
USB: EHCI update VIA workaround
USB: force root hub resume after power loss
USB: ohci_usb can oops on shutdown
USB: Dealias -110 code (more complete)
USB: Remove unneeded void * casts in core files
USB: u132-hcd: host controller driver for ELAN U132 adapter
USB: ftdi-elan: client driver for ELAN Uxxx adapters
usb serial: support Alcor Micro Corp. USB 2.0 TO RS-232 through pl2303 driver
USB: Moschip 7840 USB-Serial Driver
USB: add PlayStation 2 Trance Vibrator driver
USB: Add ADU support for Ontrak ADU devices
aircable: fix printk format warnings
Add AIRcable USB Bluetooth Dongle Driver
cypress_m8: implement graceful failure handling
cypress_m8: improve control endpoint error handling
cypress_m8: use usb_fill_int_urb where appropriate
cypress_m8: use appropriate URB polling interval
...
Andrew Morton [Wed, 27 Sep 2006 07:40:36 +0000 (00:40 -0700)]
[PATCH] git-netdev-all: pc300_tty build fix
In file included from drivers/net/wan/pc300_tty.c:59:
drivers/net/wan/pc300.h:335: error: field 'pppdev' has incomplete type
Cc: Krzysztof Halasa <khc@pm.waw.pl> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
This patch adds another hook into sharpsl_pm to notify the machine
specific driver immediately after resume. This is needed to support the Sharp SL-6000 (Tosa).
Signed-off-by: Dirk Opfer <Dirk@Opfer-Online.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The Locomo chip has a SPI interface which is used for SD/MMC cards (only collie).
This patch adds the definition for the SPI device inside the Locomo chip.
Signed-off-by: Dirk Opfer <Dirk@Opfer-Online.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Richard Purdie [Mon, 25 Sep 2006 19:11:48 +0000 (20:11 +0100)]
[ARM] 3847/2: Convert LOMOMO to use struct device for GPIOs
Convert LOMOMO to use struct device * for GPIOs instead of struct
locomo_dev. This enables access to the GPIOs from code which is not
a locomo device itself (such as audio). Access for gpio 31 is removed
for error handling (no such hardware exists).
Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Andrew Morton [Tue, 26 Sep 2006 00:00:52 +0000 (17:00 -0700)]
[PATCH] USB Storage: fix Rio Karma eject support build error
In file included from drivers/usb/storage/usb.c:180:
drivers/usb/storage/unusual_devs.h:221: error: 'US_PR_KARMA' undeclared here (not in a function)
drivers/usb/storage/unusual_devs.h:221: error: 'rio_karma_init' undeclared here (not in a function)
Cc: Keith Bennett <keith@mcs.st-and.ac.uk> Acked-by: Bob Copeland <me@bobcopeland.com> Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Andy Gay [Mon, 3 Jul 2006 22:43:01 +0000 (18:43 -0400)]
USB: Airprime driver improvements to allow full speed EvDO transfers
Adapted from an earlier patch by Greg KH <gregkh@suse.de>.
That patch added multiple read urbs and larger transfer buffers to allow
data transfers at full EvDO speed.
This version includes additional device IDs and fixes a memory leak in
the transfer buffer allocation.
Some (maybe all?) of the supported devices present multiple bulk endpoints,
the additional EPs can be used for control and status functions,
This version allocates 3 EPs by default, that can be changed using
the 'endpoints' module parameter.
Tested with Sierra Wireless EM5625 and MC5720 embedded modules.
Device ID (0x0c88, 0x17da) for the Kyocera Wireless KPC650/Passport
was added but is not yet tested.
From: Andy Gay <andy@andynet.net> Cc: Kevin Lloyd <linux@sierrawireless.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownell [Tue, 19 Sep 2006 00:03:16 +0000 (17:03 -0700)]
USB: EHCI update VIA workaround
This revamps handling of the hardware "async advance" IRQ, and its watchdog
timer. Basically it dis-entangles that important timeout from the others,
simplifying the associated state and code to make it more robust.
This reportedly improves behavior of EHCI on some systems with VIA chips,
and AFAIK won't affect non-VIA hardware. VIA systems need this code to
recover from silcon bugs whereby the "async advance" IRQ isn't issued.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Tue, 19 Sep 2006 14:07:58 +0000 (10:07 -0400)]
USB: force root hub resume after power loss
This patch(as785) forces the PM core to resume a root hub after a
power loss during system sleep. If the root hub had been suspended
before the system sleep then normally the PM core would not resume it
afterward. Without this resume, various sorts of wakeup events (like
port change events) can get lost.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Pete Zaitcev [Tue, 19 Sep 2006 05:57:22 +0000 (22:57 -0700)]
USB: ohci_usb can oops on shutdown
When ohci-hcd is shutting down (for rmmod or PC-card removal), there is
a window when the device is shut down, HC communication area (->hcca)
is freed, but the core has not called "free_irq" yet. If another device
triggers a shared interrupt in this window, we oops when trying to
access the freed ->hcca.
This patch removes the window by calling free_irq before ->hcca is freed.
The patch is tested at the PC hotplug test rig at Stratus, and with
rmmod by Rafael Wysocki.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Pete Zaitcev [Tue, 19 Sep 2006 05:49:02 +0000 (22:49 -0700)]
USB: Dealias -110 code (more complete)
The purpose of this patch is to split off the case when a device does
not reply on the lower level (which is reported by HC hardware), and
a case when the device accepted the request, but does not reply at
upper level. This redefinition allows to diagnose issues easier,
without asking the user if the -110 happened "immediately".
The usbmon splits such cases already thanks to its timestamp, but
it's not always available.
I adjusted all drivers which I found affected (by searching for "urb").
Out of tree drivers may suffer a little bit, but I do not expect much
breakage. At worst they may print a few messages.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The patch removes unneeded casts for the following (void *) pointers:
- struct file: private
- struct urb: context
- struct usb_bus: hcpriv
- return value of kmalloc()
The patch also contains some whitespace cleanup in the relevant areas.
Tony Olech [Wed, 13 Sep 2006 10:27:35 +0000 (11:27 +0100)]
USB: u132-hcd: host controller driver for ELAN U132 adapter
This "u132-hcd" module is one half of the "driver" for
ELAN's U132 which is a USB to CardBus OHCI controller
adapter. This module needs the "ftdi-elan" module in
order to communicate to CardBus OHCI controller inserted
into the U132 adapter.
When the "ftdi-elan" module detects a supported CardBus
OHCI controller in the U132 adapter it loads this "u132-hcd"
module.
Upon a successful device probe() the single workqueue
is started up which does all the processing of commands
from the USB core that implement the host controller.
The workqueue maintains the urb queues and issues commands
via the functions exported by the "ftdi-elan" module. Each
such command will result in a callback.
Note that the "ftdi-elan" module is a USB client driver.
Note that this "u132-hcd" module is a (cut-down OHCI)
host controller.
Thus we have a topology with the parent of a host controller
being a USB client! This really stresses the USB subsystem
semaphore/mutex handling in the module removal.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tony Olech [Wed, 13 Sep 2006 10:26:04 +0000 (11:26 +0100)]
USB: ftdi-elan: client driver for ELAN Uxxx adapters
This "ftdi-elan" module is one half of the "driver" for
ELAN's Uxxx series adapters which are USB to PCMCIA CardBus
adapters. Currently only the U132 adapter is available and
it's module is called "u132-hcd".
When the USB hot plug subsystem detects a Uxxx series adapter
it should load this module.
Upon a successful device probe() the jtag device file interface
is created and the status workqueue started up.
The jtag device file interface exists for the purpose of
updating the firmware in the Uxxx series adapter, but as
yet it had never been used.
The status workqueue initializes the Uxxx and then sits there
polling the Uxxx until a supported PCMCIA CardBus device is
detected it will start the command and respond workqueues
and then load the module that handles the device. This will
initially be only the u132-hcd module. The status workqueue
then just polls the Uxxx looking for card ejects.
The command and respond workqueues implement a command
sequencer for communicating with the firmware on the other
side of the FTDI chip in the Uxxx. This "ftdi-elan" module
exports some functions to interface with the sequencer.
Note that this module is a USB client driver.
Note that the "u132-hcd" module is a (cut-down OHCI)
host controller.
Thus we have a topology with the parent of a host controller
being a USB client! This really stresses the USB subsystem
semaphore/mutex handling in the module removal.
Signed-off-by: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
usb serial: support Alcor Micro Corp. USB 2.0 TO RS-232 through pl2303 driver
Patch to add support for Alcor Micro Corp. USB 2.0 TO RS-232 converter.
This patch adds VID and PID to pl2303.[ch], adds it to the "HORRIBLE
HACK FOR PL2303" in usb-serial.c and also prevents cdc-acm to claim
driving this device by blacklisting it in hid-core.
Signed-off-by: Johannes Steingraeber <Jo_Stein@web.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sam Hocevar [Wed, 30 Aug 2006 00:34:56 +0000 (02:34 +0200)]
USB: add PlayStation 2 Trance Vibrator driver
This patch is a driver for the PlayStation 2 specific Trance Vibrator
device. The only thing that device can do is vibrate at various speeds.
Signed-off-by: Sam Hocevar <sam@zoy.org> Cc: Pete Zaitcev <zaitcev@redhat.com> Cc: Luiz Fernando N. Capitulino" <lcapitulino@mandriva.com.br> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Randy Dunlap [Sat, 26 Aug 2006 17:56:10 +0000 (10:56 -0700)]
aircable: fix printk format warnings
Fix printk format warnings:
drivers/usb/serial/aircable.c:221: warning: format ‘%Zd’ expects type ‘signed size_t’, but argument 4 has type ‘int’
drivers/usb/serial/aircable.c:283: warning: format ‘%Zd’ expects type ‘signed size_t’, but argument 4 has type ‘int’
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mike Isely [Wed, 30 Aug 2006 03:07:11 +0000 (22:07 -0500)]
cypress_m8: implement graceful failure handling
When receiving a fatal error from the USB core, e.g. EILSEQ (which can
happen if the polling interval is too short), fail gracefully.
Previously the driver would fill the log with useless error messages
or (more alarmingly) silently spin forever trying to write updated
control information to the device. This change implements a new flag
which if cleared indicates that the driver has failed. The flag will
be set on initialization, cleared on fatal errors, and anything else
that touches the USB port in the driver will abort if the flag is
clear. When the flag is cleared, a message will be logged indicating
that the driver has failed.
Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mike Isely [Wed, 30 Aug 2006 03:07:07 +0000 (22:07 -0500)]
cypress_m8: improve control endpoint error handling
Fix usb core function error return checks to look for negative errno
values, not positive errno values. This bug had rendered those checks
useless. Also remove attempted error recovery on control endpoints
for EPIPE - with control endpoints EPIPE does not indicate a halted
endpoint so trying to recover with usb_clear_halt() is not the correct
action.
Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mike Isely [Wed, 30 Aug 2006 03:07:04 +0000 (22:07 -0500)]
cypress_m8: use usb_fill_int_urb where appropriate
Rather than directly filling in URB fields, it's safer to use
usb_fill_int_urb(). This improves robustness of the driver; URB
changes in the future will not go uninitialized here. That point not
withstanding, this driver should at least be self-consistent. Either
use usb_fill_int_urb() everywhere or don't bother with it all.
Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Mike Isely [Wed, 30 Aug 2006 03:06:59 +0000 (22:06 -0500)]
cypress_m8: use appropriate URB polling interval
The polling interval for the device can't always be 1msec. If it is
too quick, the device can fail causing a fatal (to the driver) EILSEQ
error from the USB core. The actual correct value is reported by the
device as part of its configuration data, so use that value as the
default. On a DeLorme Earthmate for example, the device reports that
it wants a 6msec interval. As part of this fix, the "interval" module
option has been fixed as well; the device's default can be overridden
by specifying interval=<value> as a module option.
Signed-off-by: Mike Isely <isely@pobox.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Tue, 19 Sep 2006 14:08:43 +0000 (10:08 -0400)]
USB: fix root-hub resume when CONFIG_USB_SUSPEND is not set
This patch (as786) removes a redundant test and fixes a problem
involving repeated system sleeps when CONFIG_USB_SUSPEND is not set.
During the first wakeup, the root hub's dev.power.power_state.event
field doesn't get updated, causing it not to be suspended during the
second sleep transition.
This takes care of the issue raised by Rafael J. Wysocki and Mattia
Dongili.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Wed, 30 Aug 2006 19:47:11 +0000 (15:47 -0400)]
usbcore: remove usb_suspend_root_hub
This patch (as740) removes the existing support for autosuspend of
root hubs. That support fit in rather awkwardly with the rest of
usbcore and it was used only by ohci-hcd. It won't be needed any more
since the hub driver will take care of autosuspending all hubs, root
or external.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as739) adds the basic infrastructure for USB autosuspend
and autoresume. The main features are:
PM usage counters added to struct usb_device and struct
usb_interface, indicating whether it's okay to autosuspend
them or they are currently in use.
Flag added to usb_device indicating whether the current
suspend/resume operation originated from outside or as an
autosuspend/autoresume.
Flag added to usb_driver indicating whether the driver
supports autosuspend. If not, no device bound to the driver
will be autosuspended.
Mutex added to usb_device for protecting PM operations.
Unlike the device semaphore, the locking rule for the pm_mutex
is that you must acquire the locks going _up_ the device tree.
New routines handling autosuspend/autoresume requests for
interfaces and devices.
Suspend and resume requests are propagated up the device tree
(but not outside the USB subsystem).
work_struct added to usb_device, for carrying out delayed
autosuspend requests.
Autoresume added (and autosuspend prevented) during probe and
disconnect.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Wed, 30 Aug 2006 19:46:48 +0000 (15:46 -0400)]
usbcore: store each usb_device's level in the tree
This patch (as778) adds a field to struct usb_device to store the
device's level in the USB tree. In itself this number isn't really
important. But the overhead is very low, and in a later patch it will
be used for preventing bogus warnings from the lockdep checker.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Pete Zaitcev [Thu, 7 Sep 2006 23:54:22 +0000 (16:54 -0700)]
USB: UB: Let cdrecord to see a device with media absent
The command "cdrecord dev=/dev/uba x.iso" prints nasty garbage if a blank
is not in the drive. This happens because drivers have to set req->errors
separately from just returning zero uptodate with end_that_request_first,
end_that_request_last. These functions only set error in BIO, but sg_io()
ignores it.
Since we're on it, let cdrecord access a device when ->changed is set.
It's useful if someone wants to know device capabilities without burning
anything.
Signed-Off-By: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownell [Sat, 2 Sep 2006 10:13:45 +0000 (03:13 -0700)]
USB: net2280: update dma buffer allocation
This updates the code handling dma-coherent buffer allocations, basically
reusing code from the musb_hdrc driver. Instead of trying to work around two
significant limitations of the dma framework (memory wastage for buffers
smaller than a page, and inconsistency between calling context requirements
for allocation and free) this just works around one of them (the latter).
So count this as two steps forward (bugfixes: the latter issue could cause
errors on some platforms, and some MIPS changes broke code for the former),
and one step back (increasing cross-platform memory wastage).
Plus linelength and whitespace fixes; and minor data segment shrinkage.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
David Brownell [Wed, 30 Aug 2006 20:24:56 +0000 (13:24 -0700)]
USB: ethernet gadget avoids zlps for musb_hdrc
For systems using the Mentor HDRC controllers we get better TX DMA throughput
if we can avoid falling back to PIO to write zero length packets ... so tell
the driver to avoid ZLPs.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Wed, 30 Aug 2006 15:35:21 +0000 (11:35 -0400)]
usbmon: don't call mon_dmapeek if DMA isn't being used
This patch (as755b) fixes a bug in usbmon. Rather than assuming all
USB host controllers use DMA, the code will check the usb_bus data
structure. If DMA isn't used, we don't want to try peeking into a
non-existent DMA buffer!
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Wed, 30 Aug 2006 15:32:52 +0000 (11:32 -0400)]
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>
Alan Stern [Wed, 30 Aug 2006 15:29:56 +0000 (11:29 -0400)]
usbcore: Add flag for whether a host controller uses DMA
This patch (as770b) introduces a new field to usb_bus: a flag
indicating whether or not the host controller uses DMA. This serves
to encapsulate the computation. It also means we will have only one
spot to update if the DMA API changes.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
projects / linux-2.6 / log