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5756 commits

Author SHA1 Message Date
Javier Martinez Canillas
e9137c2e44 USB: isp1362-hcd: Removes CONFIG_USB_OTG dependent code, fix build breakage
In today linux-next I got a compile error on usb/host/isp1362-hcd:

drivers/usb/host/isp1362-hcd.c: In function ‘isp1362_hub_control’:
drivers/usb/host/isp1362-hcd.c:1680: error: ‘ohci’ undeclared (first use in this function)

The problem is when the CONFIG_USB_OTG option is enabled.

ohci variable is never declared and there isn't any CONFIG_USB_OTG dependent code
besides the portion defined in isp1362_hub_control.

So I think that maybe USB OTG support is not needed/supported.

This patch removes the CONFIG_USB_OTG dependent block so the driver can compile cleanly.

Signed-off-by: Javier Martinez Canillas <martinez.javier@gmail.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Lothar Wassmann <LW@KARO-electronics.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:38 -07:00
Roger Quadros
5c836e4d58 usb gadget: composite: prevent OOPS for non-standard control request
The composite gadget will OOPS if the host sends a control request
targetted to an interface of an un-configured composite device. This patch
prevents this.

The OOPS was observed during WHQL USB CV tests. With this patch, the device
STALLs as per requirement.

Failing test case: From host do the following. I used libusb-1.0

1) Set configuration to zero.
	libusb_control_transfer(device_handle,
		0, /* standard OUT */
		0x9, /* setConfiguration */
		0, 0, NULL, 0, 0);

2) Query current configuratioan.
	libusb_control_transfer(device_handle,
		0x80, /* standard IN*/
		0x8, /* getConfiguration */
		0, 0, data, 1, 0);

3) Send the non-standard ctrl transfer targetted to interface
	libusb_control_transfer(device_handle,
		0x81, /* standard IN to interface*/
		0x6, /* getDescriptor */
		0x2300, 0, data, 0x12, 0);

Signed-off-by: Roger Quadros <roger.quadros@nokia.com>
Cc: stable <stable@kernel.org>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Michal Nazarewicz <m.nazarewicz@samsung.com>
Cc: Robert Lukassen <robert.lukassen@tomtom.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:37 -07:00
Alan Stern
3df7169e73 OHCI: work around for nVidia shutdown problem
This patch (as1417) fixes a problem affecting some (or all) nVidia
chipsets.  When the computer is shut down, the OHCI controllers
continue to power the USB buses and evidently they drive a Reset
signal out all their ports.  This prevents attached devices from going
to low power.  Mouse LEDs stay on, for example, which is disconcerting
for users and a drain on laptop batteries.

The fix involves leaving each OHCI controller in the OPERATIONAL state
during system shutdown rather than putting it in the RESET state.
Although this nominally means the controller is running, in fact it's
not doing very much since all the schedules are all disabled.  However
there is ongoing DMA to the Host Controller Communications Area, so
the patch also disables the bus-master capability of all PCI USB
controllers after the shutdown routine runs.

The fix is applied only to nVidia-based PCI OHCI controllers, so it
shouldn't cause problems on systems using other hardware.  As an added
safety measure, in case the kernel encounters one of these running
controllers during boot, the patch changes quirk_usb_handoff_ohci()
(which runs early on during PCI discovery) to reset the controller
before anything bad can happen.

Reported-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: David Brownell <david-b@pacbell.net>
Tested-by: Pali Rohár <pali.rohar@gmail.com>
CC: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:36 -07:00
Dan Carpenter
637ed74ff9 USB: ohci-sm501: add iounmap on error path
This ioremap() was leaked on an error path.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:35 -07:00
Praveena Nadahally
5c8db070b4 USB: Change acm_iad_descriptor bFunctionProtocol to USB_CDC_ACM_PROTO_AT_V25TER
The protocol code is set 00 in IAD and it's set to 01 in ACM control
interface descriptor in f_acm.c file. Due to this, windows is unable to
install the modem(ACM) driver based on class-subclass-protocol matching.

This patch corrects the protocol code in ACM IAD to the same as in
acm_control_interface_desc protocol code.

Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Praveena Nadahally <praveen.nadahally@stericsson.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:35 -07:00
Javier Martinez Canillas
92d3489ec5 USB: r8a66597-udc: Initialize uninitialized variable, fix compile warning
In today linux-next I got a compile warning due a possible uninitialized variable

This patch solves the issue initializing the variable


Signed-off-by: Javier Martinez Canillas <martinez.javier@gmail.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Magnus Damm <damm@opensource.se>
Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:34 -07:00
Hao Wu
56e9406ca2 USB OTG Langwell: Update OTG Kconfig and driver version.
This patch updated Kconfig for langwell otg transceiver driver.
Add ipc driver(INTEL_SCU_IPC) as a dependency. Driver version is
updated too.

Signed-off-by: Hao Wu <hao.wu@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:33 -07:00
Thomas Gleixner
5014b5e33a usb: ftdi-elan: Convert "mutex" to semaphore
The "mutex" ftdi->sw_lock is used as a lock and a completion. Convert
it to a real semaphore which allows both.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:31 -07:00
Mihai Donțu
a1df4e45c8 USB: gadget: rndis: fix up coding style issues in the file
Corrected the coding style.

Signed-off-by: Mihai Dontu <mihai.dontu@gmail.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:30 -07:00
Matthieu CASTET
65fd42724a USB: ehci tdi : let's tdi_reset set host mode
tdi_reset is already taking care of setting host mode for tdi devices.
Don't duplicate code in platform driver.

Make ehci_halt a nop if the controller is not in host mode (otherwise it 
will fail), and let's ehci_reset do the tdi_reset.
We need to move hcd->has_tt flags before ehci_halt, in order ehci_halt 
knows we are a tdi device.


Before the setup routine was doing :
- put controller in host mode
- ehci_halt
- ehci_init
- hcd->has_tt = 1;
- ehci_reset

Now we do :
- hcd->has_tt = 1;
- ehci_halt
- ehci_init
- ehci_reset

PS : now we handle correctly the device -> host transition.

Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:29 -07:00
Michael Prokop
eabf0f5f09 USB: Kconfig: fix typos in USB_FUNCTIONFS* description
It's spelled "Function Filesystem" / "FunctionFS". This patch
fixes some typos (FunctioFS->FunctionFS, Funcion->Function,
funcion->function, redundant "as") in the Kconfig description of
USB_FUNCTIONFS*.

Signed-off-by: Michael Prokop <mika@grml.org>
Acked-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:29 -07:00
Alan Stern
d8087427cc USB: g_file_storage: don't generate automatic serial string
This patch (as1413) changes g_file_storage to avoid generating a bogus
automatic serial-number string descriptor.  If the user doesn't provide
a valid serial number via a module parameter then a warning is logged
and the gadget won't have any serial string descriptor at all.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: David Brownell <david-b@pacbell.net>
CC: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:28 -07:00
Joe Perches
10f4716872 USB: langwell: Remove unnecessary return's from void functions
There are about 2500 void functions in drivers/usb
Only a few used return; at end of function.

Standardize them a bit.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:27 -07:00
Simon Arlott
f7dd64916b USB: output an error message when the pipe type doesn't match the endpoint type
Commit f661c6f8c6 adds a check of the pipe type if
CONFIG_USB_DEBUG is enabled, but it doesn't output anything if this scenario
occurs.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:27 -07:00
Julia Lawall
0cf7a63388 USB: gadget: amd5536udc.c: Remove double test
The same expression is tested twice and the result is the same each time.
Instead test for use_dma_ppb as in the test above.

The sematic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@expression@
expression E;
@@

(
* E
  || ... || E
|
* E
  && ... && E
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:26 -07:00
Uwe Kleine-König
c9bfff9c98 usb gadget: don't save bind callback in struct usb_configuration
The bind function is most of the time only called at init time so there
is no need to save a pointer to it in the configuration structure.

This fixes many section mismatches reported by modpost.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
[m.nazarewicz@samsung.com: updated for -next]
Signed-off-by: Michał Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:26 -07:00
Michal Nazarewicz
07a18bd716 usb gadget: don't save bind callback in struct usb_composite_driver
The bind function is most of the time only called at init time so there
is no need to save a pointer to it in the composite driver structure.

This fixes many section mismatches reported by modpost.

Signed-off-by: Michał Nazarewicz <m.nazarewicz@samsung.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:25 -07:00
Uwe Kleine-König
b0fca50f5a usb gadget: don't save bind callback in struct usb_gadget_driver
To accomplish this the function to register a gadget driver takes the bind
function as a second argument.  To make things clearer rename the function
to resemble platform_driver_probe.

This fixes many section mismatches like

	WARNING: drivers/usb/gadget/g_printer.o(.data+0xc): Section mismatch in
	reference from the variable printer_driver to the function
	.init.text:printer_bind()
	The variable printer_driver references
	the function __init printer_bind()

All callers are fixed.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
[m.nazarewicz@samsung.com: added dbgp]
Signed-off-by: Michał Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:25 -07:00
Michal Nazarewicz
e12995ec8f USB: Revert "USB: gadget: section mismatch warning fixed"
This reverts a commit which proposed an invalid solution
for a section mismatch.  Next 3 commits will fix it correctly.

Conflicts:

	drivers/usb/gadget/mass_storage.c

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:24 -07:00
Michal Nazarewicz
a99d8a45bc USB: gadget: g_multi: moved strings handling code to composite
This patch removes some of the string registration from the
Multifunction Composite Gadget as composite layer can handle
the iManufacturer and iProduct for us.

This also adds the "needs_serial" so that composite layer will
issue a warning if user space fails to provide the iSerialNumber
module parameter.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:23 -07:00
Michal Nazarewicz
7c2b61d02c USB: gadget: mass_storage: moved strings handling code to composite
This patch removes string registration from the Mass Storage
Gadget.  With recent changes to the composite framework, all
that we need is handled by the composite layer.  This means
composite registers a string ID for manufacturer and product.

This also adds the "needs_serial" so that composite layer will
issue a warning if user space fails to provide the iSerialNumber
module parameter.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:23 -07:00
Michal Nazarewicz
ad1a8102f9 USB: gadget: composite: Better string override handling
The iManufatcurer, iProduct and iSerialNumber composite module
parameters were only used when the gadget driver registers
strings for manufacturer, product and serial number.  If the
gadget never bothered to set corresponding fields in USB device
descriptors those module parameters are ignored.

This commit makes the parameters work even if the strings ID
have not been assigned.  It also changes the way IDs are
overridden -- what IDs are overridden is now saved in
usb_composite_dev structure -- which makes it unnecessary to
modify the string tables the way previous code did.

The commit also adds a iProduct and iManufatcurer fields to the
usb_composite_device structure.  If they are set, appropriate
strings are reserved and added to device descriptor.  This makes
it unnecessary for gadget drivers to maintain code for setting
those.  If iProduct is not set it defaults to
usb_composite_device::name; if iManufatcurer is not set
a default "<system> <release> with <gadget-name>" is used.

The last thing is that if needs_serial field of
usb_composite_device is set and user failed to provided
iSerialNumber parameter a warning is issued.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:23 -07:00
Michal Nazarewicz
fc19de61ef USB: gadget: functionfs: code cleanup
This patch removes some of the string registration from the
FunctionFS Gadget as composite layer can handle the
iManufacturer and iProduct for us.

It also removes some of the module parameters which were
redundant as well as changes the name of others to better much
the module parameter of the composite layer.

Other then that, it also fixes formatting of multiline comments
to match the coding style.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:22 -07:00
Michal Nazarewicz
9cfe745e65 usb: gadget: mass_storage: optional SCSI WRITE FUA bit
The nofua parameter (optionally ignore SCSI WRITE FUA) was added
to the File Storage Gadget some time ago.  This patch adds the
same functionality to the Mass Storage Function.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Cc: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:22 -07:00
Michal Nazarewicz
452ee0eb10 usb: gadget: storage: remove nofua file when unbinding
The dev_attr_nofua file was created during fsg_bind() but
was never removed.  Made it a bit more symmetrical and added
code to remove the file in fsg_unbind().

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Acked-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:22 -07:00
Michal Nazarewicz
ba0534be93 USB: gadget: g_ffs: fixed vendor and product ID
This patch fixes the vendor and product ID the gadget uses
by replacing the temporary IDs that were used during
development (which should never get into mainline) with
proper IDs.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:21 -07:00
Michal Nazarewicz
1c6529e92b USB: gadget: g_multi: fixed vendor and product ID
This patch fixes the vendor and product ID the gadget uses
by replacing the temporary IDs that were used during
development (which should never get into mainline) with
proper IDs.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:21 -07:00
Wolfram Sang
4bec99174a USB: core: update comment to match current function name
Found while debugging a USB problem and trying to find the mentioned function.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:21 -07:00
Parirajan Muthalagu
37b5801e16 USB Gadget: Verify VBUS current before setting the device self-powered bit
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Praveena Nadahally <praveen.nadahally@stericsson.com>
Signed-off-by: Parirajan Muthalagu <parirajan.muthalagu@stericsson.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:20 -07:00
Johan Hovold
90593899de USB: sam-ba: add driver for Atmel SAM Boot Assistant (SAM-BA)
Add new driver to access the SAM-BA boot application of Atmel AT91SAM
devices.

The SAM-BA firmware cannot handle merged write requests so we cannot use
the generic write implementation (which uses the port write fifo).

Tested with the SAM-BA 2.10 tools and an Atmel at91sam9260-ek.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Tested-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:20 -07:00
Dan Carpenter
c6a76781da USB: gadget: dbgp: cleanup: remove unneeded check
len is always greater than or equal to zero here.  First of all, it's
type is unsigned and also we only assign it numbers which are greater
than or equal to zero.

Removing the check lets us pull everything in an indent level.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Stephane duverger <stephane.duverger@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:19 -07:00
JiebingLi
912c93d160 USB: langwell: USB Client driver memory handling
SRAM Memory handling for USB client function

Signed-off-by: JiebingLi <jiebing.li@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:19 -07:00
JiebingLi
3211cbc20b USB: langwell: USB Client Remote Wakeup Support
Remote wakeup support in client driver. Made non-debug only this time.

Signed-off-by: JiebingLi <jiebing.li@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:19 -07:00
JiebingLi
513b91b688 USB: langwell: USB Client PHY low power mode setting
PHY low power mode setting with a static function

Signed-off-by: JiebingLi <jiebing.li@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:18 -07:00
JiebingLi
3eed298ffa USB: langwell: USB Client Endpoint initialization
Endpoint software structure initialization

Signed-off-by: JiebingLi <jiebing.li@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:18 -07:00
JiebingLi
5f81f4b0c0 USB: langwell: USB Client driver code cleanup
Code cleanup by using standard debugging API's and USB inline functions

Signed-off-by: JiebingLi <jiebing.li@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:17 -07:00
Hao Wu
f0ae849df1 usb: Add Intel Langwell USB OTG Transceiver Driver
This adds support for the USB transceiver driver in the Langwell chipset used
on the Intel MID platforms. It folds up the original patch set which includes
basic support for the device, PHY low power mode (Please notice that there is
a limitation, after we drive VBus down, 2ms delay is required from SCU FW to
sync up OTGSC register with USBCFG register), software timers (the hardware
timers do not work in low power mode), HNP, SRP.


Signed-off-by: Hao Wu <hao.wu@intel.com>
Signed-off-by: Alek Du <alek.du@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:21:17 -07:00
Alan Cox
a9e2e06015 tty: Fix warning left over from TIOCGICOUNT changes
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:20:05 -07:00
Alan Cox
0bca1b913a tty: Convert the USB drivers to the new icount interface
Simple pasting job using the new ops function. Also fix a couple of devices
directly returning the internal struct (which happens at this point to match
for the fields that matter but isn't correct or futureproof)

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:20:04 -07:00
Alan Cox
d281da7ff6 tty: Make tiocgicount a handler
Dan Rosenberg noted that various drivers return the struct with uncleared
fields. Instead of spending forever trying to stomp all the drivers that
get it wrong (and every new driver) do the job in one place.

This first patch adds the needed operations and hooks them up, including
the needed USB midlayer and serial core plumbing.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:20:04 -07:00
Linus Torvalds
b5153163ed Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (278 commits)
  arm: remove machine_desc.io_pg_offst and .phys_io
  arm: use addruart macro to establish debug mappings
  arm: return both physical and virtual addresses from addruart
  arm/debug: consolidate addruart macros for CONFIG_DEBUG_ICEDCC
  ARM: make struct machine_desc definition coherent with its comment
  eukrea_mbimxsd-baseboard: Pass the correct GPIO to gpio_free
  cpuimx27: fix compile when ULPI is selected
  mach-pcm037_eet: fix compile errors
  Fixing ethernet driver compilation error for i.MX31 ADS board
  cpuimx51: update board support
  mx5: add cpuimx51sd module and its baseboard
  iomux-mx51: fix GPIO_1_xx 's IOMUX configuration
  imx-esdhc: update devices registration
  mx51: add resources for SD/MMC on i.MX51
  iomux-mx51: fix SD1 and SD2's iomux configuration
  clock-mx51: rename CLOCK1 to CLOCK_CCGR for better readability
  clock-mx51: factorize clk_set_parent and clk_get_rate
  eukrea_mbimxsd: add support for DVI displays
  cpuimx25 & cpuimx35: fix OTG port registration in host mode
  i.MX31 and i.MX35 : fix errate TLSbo65953 and ENGcm09472
  ...
2010-10-21 16:42:32 -07:00
Justin P. Mattock
631dd1a885 Update broken web addresses in the kernel.
The patch below updates broken web addresses in the kernel

Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Finn Thain <fthain@telegraphics.com.au>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Dimitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Acked-by: Ben Pfaff <blp@cs.stanford.edu>
Acked-by: Hans J. Koch <hjk@linutronix.de>
Reviewed-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-10-18 11:03:14 +02:00
Arnd Bergmann
6038f373a3 llseek: automatically add .llseek fop
All file_operations should get a .llseek operation so we can make
nonseekable_open the default for future file operations without a
.llseek pointer.

The three cases that we can automatically detect are no_llseek, seq_lseek
and default_llseek. For cases where we can we can automatically prove that
the file offset is always ignored, we use noop_llseek, which maintains
the current behavior of not returning an error from a seek.

New drivers should normally not use noop_llseek but instead use no_llseek
and call nonseekable_open at open time.  Existing drivers can be converted
to do the same when the maintainer knows for certain that no user code
relies on calling seek on the device file.

The generated code is often incorrectly indented and right now contains
comments that clarify for each added line why a specific variant was
chosen. In the version that gets submitted upstream, the comments will
be gone and I will manually fix the indentation, because there does not
seem to be a way to do that using coccinelle.

Some amount of new code is currently sitting in linux-next that should get
the same modifications, which I will do at the end of the merge window.

Many thanks to Julia Lawall for helping me learn to write a semantic
patch that does all this.

===== begin semantic patch =====
// This adds an llseek= method to all file operations,
// as a preparation for making no_llseek the default.
//
// The rules are
// - use no_llseek explicitly if we do nonseekable_open
// - use seq_lseek for sequential files
// - use default_llseek if we know we access f_pos
// - use noop_llseek if we know we don't access f_pos,
//   but we still want to allow users to call lseek
//
@ open1 exists @
identifier nested_open;
@@
nested_open(...)
{
<+...
nonseekable_open(...)
...+>
}

@ open exists@
identifier open_f;
identifier i, f;
identifier open1.nested_open;
@@
int open_f(struct inode *i, struct file *f)
{
<+...
(
nonseekable_open(...)
|
nested_open(...)
)
...+>
}

@ read disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
<+...
(
   *off = E
|
   *off += E
|
   func(..., off, ...)
|
   E = *off
)
...+>
}

@ read_no_fpos disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
... when != off
}

@ write @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
<+...
(
  *off = E
|
  *off += E
|
  func(..., off, ...)
|
  E = *off
)
...+>
}

@ write_no_fpos @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
... when != off
}

@ fops0 @
identifier fops;
@@
struct file_operations fops = {
 ...
};

@ has_llseek depends on fops0 @
identifier fops0.fops;
identifier llseek_f;
@@
struct file_operations fops = {
...
 .llseek = llseek_f,
...
};

@ has_read depends on fops0 @
identifier fops0.fops;
identifier read_f;
@@
struct file_operations fops = {
...
 .read = read_f,
...
};

@ has_write depends on fops0 @
identifier fops0.fops;
identifier write_f;
@@
struct file_operations fops = {
...
 .write = write_f,
...
};

@ has_open depends on fops0 @
identifier fops0.fops;
identifier open_f;
@@
struct file_operations fops = {
...
 .open = open_f,
...
};

// use no_llseek if we call nonseekable_open
////////////////////////////////////////////
@ nonseekable1 depends on !has_llseek && has_open @
identifier fops0.fops;
identifier nso ~= "nonseekable_open";
@@
struct file_operations fops = {
...  .open = nso, ...
+.llseek = no_llseek, /* nonseekable */
};

@ nonseekable2 depends on !has_llseek @
identifier fops0.fops;
identifier open.open_f;
@@
struct file_operations fops = {
...  .open = open_f, ...
+.llseek = no_llseek, /* open uses nonseekable */
};

// use seq_lseek for sequential files
/////////////////////////////////////
@ seq depends on !has_llseek @
identifier fops0.fops;
identifier sr ~= "seq_read";
@@
struct file_operations fops = {
...  .read = sr, ...
+.llseek = seq_lseek, /* we have seq_read */
};

// use default_llseek if there is a readdir
///////////////////////////////////////////
@ fops1 depends on !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier readdir_e;
@@
// any other fop is used that changes pos
struct file_operations fops = {
... .readdir = readdir_e, ...
+.llseek = default_llseek, /* readdir is present */
};

// use default_llseek if at least one of read/write touches f_pos
/////////////////////////////////////////////////////////////////
@ fops2 depends on !fops1 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read.read_f;
@@
// read fops use offset
struct file_operations fops = {
... .read = read_f, ...
+.llseek = default_llseek, /* read accesses f_pos */
};

@ fops3 depends on !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write.write_f;
@@
// write fops use offset
struct file_operations fops = {
... .write = write_f, ...
+	.llseek = default_llseek, /* write accesses f_pos */
};

// Use noop_llseek if neither read nor write accesses f_pos
///////////////////////////////////////////////////////////

@ fops4 depends on !fops1 && !fops2 && !fops3 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
identifier write_no_fpos.write_f;
@@
// write fops use offset
struct file_operations fops = {
...
 .write = write_f,
 .read = read_f,
...
+.llseek = noop_llseek, /* read and write both use no f_pos */
};

@ depends on has_write && !has_read && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write_no_fpos.write_f;
@@
struct file_operations fops = {
... .write = write_f, ...
+.llseek = noop_llseek, /* write uses no f_pos */
};

@ depends on has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
@@
struct file_operations fops = {
... .read = read_f, ...
+.llseek = noop_llseek, /* read uses no f_pos */
};

@ depends on !has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
@@
struct file_operations fops = {
...
+.llseek = noop_llseek, /* no read or write fn */
};
===== End semantic patch =====

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Julia Lawall <julia@diku.dk>
Cc: Christoph Hellwig <hch@infradead.org>
2010-10-15 15:53:27 +02:00
Paul Walmsley
4814ced511 OMAP: control: move plat-omap/control.h to mach-omap2/control.h
Only OMAP2+ platforms have the System Control Module (SCM) IP block.
In the past, we've kept the SCM header file in plat-omap.  This has
led to abuse - device drivers including it; includes being added that
create implicit dependencies on OMAP2+ builds; etc.

In response, move the SCM headers into mach-omap2/.

As part of this, remove the direct SCM access from the OMAP UDC
driver.  It was clearly broken.  The UDC code needs an indepth review for
use on OMAP2+ chips.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Cory Maccarrone <darkstar6262@gmail.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
2010-10-08 11:40:20 -06:00
Igor Grinberg
6dc3ae845c ARM: ohci-pxa27x: enable OHCI over U2DC for pxa3xx
U2D Controller of pxa3xx is able to work in host mode.
Make pxa specific ohci implementation aware of it.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-10-08 16:21:17 +08:00
David S. Miller
69259abb64 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/pcmcia/pcnet_cs.c
	net/caif/caif_socket.c
2010-10-06 19:39:31 -07:00
Jiri Kosina
d7eccbbae8 Revert "drivers/usb: Remove unnecessary return's from void functions" for musb gadget
This is a partial revert of 7f26b3a753 ("drivers/usb: Remove unnecessary
return's from void functions") as this hunk will vanish in USB tree completely.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-10-06 11:34:48 +02:00
Arnd Bergmann
cdbd2b013d BKL: Remove BKL from USB gadgetfs
The BKL is only used in fill_super, which is  protected by the superblocks
s_umount rw_semaphore. Therefore it is safe to remove the BKL entirely.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: linux-usb@vger.kernel.org
2010-10-04 21:10:47 +02:00
Dominik Brodowski
2e9b981a7c pcmcia: move driver name to struct pcmcia_driver
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-09-29 17:20:24 +02:00
Dominik Brodowski
1cc745d1cd pcmcia: remove the "Finally, report what we've done" message
Remove this unnecessary message -- this info is either available
in sysfs or by enabling dynamic debug from the PCMCIA core.

CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-scsi@vger.kernel.org
CC: linux-usb@vger.kernel.org
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-09-29 17:20:24 +02:00
Dominik Brodowski
00990e7ce0 pcmcia: use autoconfiguration feature for ioports and iomem
When CONF_AUTO_SET_IO or CONF_AUTO_SET_IOMEM are set, the corresponding
fields in struct pcmcia_device *p_dev->resource[0,1,2] are set
accordinly. Drivers wishing to override certain settings may do so in
the callback function, but they no longer need to parse the CIS entries
stored in cistpl_cftable_entry_t themselves.

CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-usb@vger.kernel.org
CC: laforge@gnumonks.org
CC: linux-mtd@lists.infradead.org
CC: linux-bluetooth@vger.kernel.org
CC: alsa-devel@alsa-project.org
CC: linux-serial@vger.kernel.org
CC: Jiri Kosina <jkosina@suse.cz>
CC: linux-scsi@vger.kernel.org
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-09-29 17:20:24 +02:00
Dominik Brodowski
440eed43e2 pcmcia: introduce autoconfiguration feature
Introduce an autoconfiguration feature to set certain values in
pcmcia_loop_config(), instead of copying the same code over and over
in each PCMCIA driver. At first, introduce the following options:

CONF_AUTO_CHECK_VCC	check or matching Vcc entry
CONF_AUTO_SET_VPP	set Vpp
CONF_AUTO_AUDIO		enable the speaker line

CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-usb@vger.kernel.org
CC: laforge@gnumonks.org
CC: linux-mtd@lists.infradead.org
CC: alsa-devel@alsa-project.org
CC: linux-serial@vger.kernel.org
CC: Jiri Kosina <jkosina@suse.cz>
CC: linux-scsi@vger.kernel.org
Acked-by: Gustavo F. Padovan <padovan@profusion.mobi> (for drivers/bluetooth)
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-09-29 17:20:23 +02:00
Dominik Brodowski
1ac71e5a35 pcmcia: convert pcmcia_request_configuration to pcmcia_enable_device
pcmcia_enable_device() now replaces pcmcia_request_configuration().
Instead of config_req_t, all necessary flags are either passed as
a parameter to pcmcia_enable_device(), or (in rare circumstances)
set in struct pcmcia_device -> flags.

With the last remaining user of include/pcmcia/cs.h gone, remove
all references.

CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-usb@vger.kernel.org
CC: laforge@gnumonks.org
CC: linux-mtd@lists.infradead.org
CC: alsa-devel@alsa-project.org
CC: linux-serial@vger.kernel.org
CC: Jiri Kosina <jkosina@suse.cz>
CC: linux-scsi@vger.kernel.org
Acked-by: Gustavo F. Padovan <padovan@profusion.mobi> (for drivers/bluetooth)
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-09-29 17:20:23 +02:00
Dominik Brodowski
7feabb6412 pcmcia: move config_{base,index,regs} to struct pcmcia_device
Several drivers prefer to explicitly set config_{base,index,regs},
formerly known as ConfigBase, ConfigIndex and Present. Instead of
passing these values inside config_req_t, store it in struct
pcmcia_device.

CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-usb@vger.kernel.org
CC: laforge@gnumonks.org
CC: linux-mtd@lists.infradead.org
CC: alsa-devel@alsa-project.org
CC: linux-serial@vger.kernel.org
CC: Jiri Kosina <jkosina@suse.cz>
CC: linux-scsi@vger.kernel.org
Acked-by: Gustavo F. Padovan <padovan@profusion.mobi> (for drivers/bluetooth)
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-09-29 17:20:22 +02:00
Dominik Brodowski
37979e1546 pcmcia: simplify IntType
IntType was only set to INT_MEMORY (driver pcmciamtd) or INT_MEMORY_AND_IO
(all other drivers). As this flags seems to relate to ioport access, make
it conditional to the driver having requested IO port access. There are two
drivers which do not request IO ports, but did set INT_MEMORY_AND_IO:
ray_cs and b43. For those, we consistently only set INT_MEMORY in future.

CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-ide@vger.kernel.org
CC: linux-usb@vger.kernel.org
CC: laforge@gnumonks.org
CC: linux-mtd@lists.infradead.org
CC: alsa-devel@alsa-project.org
CC: linux-serial@vger.kernel.org
CC: Jiri Kosina <jkosina@suse.cz>
CC: linux-scsi@vger.kernel.org
Acked-by: Gustavo F. Padovan <padovan@profusion.mobi> (for drivers/bluetooth)
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-09-29 17:20:22 +02:00
Dominik Brodowski
e8405f0f61 pcmcia: move Vpp setup to struct pcmcia_device
Some drivers prefer to explicitly set Vpp. Instead of passing the
voltage inside config_req_t, store it in struct pcmcia_device.

CC: linux-ide@vger.kernel.org
CC: netdev@vger.kernel.org
CC: linux-mtd@lists.infradead.org
CC: linux-wireless@vger.kernel.org
CC: linux-serial@vger.kernel.org
CC: linux-usb@vger.kernel.org
CC: linux-scsi@vger.kernel.org
Acked-by: Gustavo F. Padovan <padovan@profusion.mobi> (for drivers/bluetooth)
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
2010-09-29 17:20:21 +02:00
Alan Stern
2dab3948f5 USB: update Kconfig help text for CONFIG_USB_SUSPEND
This patch (as1429) updates the Kconfig help text for
CONFIG_USB_SUSPEND.  The power/level file is now deprecated; we should
tell people to use power/control instead.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-24 11:05:01 -07:00
Sergei Shtylyov
a666e3e609 usb: musb: gadget: restart request on clearing endpoint halt
Commit 46034dca51 (USB: musb_gadget_ep0: stop
abusing musb_gadget_set_halt()) forgot to restart a queued request after
clearing the endpoint halt feature. This results in a couple of USB resets
while enumerating the file-backed storage gadget due to CSW packet not being
sent for the MODE SENSE(10) command.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: stable@kernel.org
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-24 11:05:01 -07:00
Santosh Shilimkar
4c64733826 usb: musb: host: Issue a memory barrier before starting DMA
This patch fixes the issue which was observed while transfering
a large file ( > 20MB) over USB (OMAP MUSB controller acts as USB host)
to an attached USB thumb drive.

It was found that CDB field of CBW packet was set to 0x0. This was
due to missing a barrier before DMA engine starts transfer.
This  buffer is  allocated using dma_alloc_coherent which gives
non-cacheble but bufferable memory and hence needed a write
memory barrier to flush the write buffer.

More info on this thread is here:
	http://www.spinics.net/lists/linux-omap/msg33987.html

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Maulik Mankad <x0082077@ti.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-24 11:05:01 -07:00
Ming Lei
66af83ddf7 usb: musb: gadget: fix dma length in txstate
DMA length should not go beyond the availabe space
of request buffer, so fix it.

Also set max_len of cppi dma channel as max size of
int type, so make musb dma handling happier.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-24 11:05:01 -07:00
Ming Lei
bb27bc2c11 usb: musb: gadget: complete request only if data is transfered over
Complete the current request only if the data transfer is over.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-24 11:05:01 -07:00
Ming Lei
1018b4e44f usb: musb: gadget: fix DMA length for OUT transfer
DMA length should not go beyond the availabe space of request buffer,
so fix it.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: Anand Gadiyar <gadiyar@ti.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-24 11:05:01 -07:00
Ming Lei
490e5fbe8c usb: musb: gadget: enable autoclear for OUT transfer in both DMA 0 and DMA 1
This patch fixes one bugs of OUT transfer in double buffer case:

	-the current code only enable autoclear for dma mode 1, and not
	for dma mode 0

Without this patch, test #5 of usbtest can't be passed if we
configure musb as g_zero and use fifo mode 3 to enable double
buffer mode.

With this patch and the following patch(fix dma length),
on my beagle B5, test#5(queued bulk out) may go beyond
18Mbyte/s(seems dma mode 0 is quicker in double buffer case)
if musb is configured as g_zero and fifo mode 3 is taken, follows
the test command:

    #./testusb -D DEV_NAME -c 1024 -t 5 -s 32768 -g 8   [1]

Also I have tested this patch can't make g_ether broken.

[1],source of testusb : tools/usb/testusb.c under linux kernel;

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-24 11:05:00 -07:00
Ming Lei
eeb1b2a4a9 usb: musb: gadget: fix bulk IN infinit hangs in double buffer case
This patch fixes one infinite hang of bulk IN transfer in double buffer
case, the hang can be observed easily by test #6 of usbtest if musb is
configured as g_zero and fifo mode 3 is taken to enable double fifo.

In fact, the patch only removes the check for non-empty fifo before
loading data from new request into fifo since the check is not correct:

	-in double buffer case, fifo may accommodate more than one packet,
	even though it has contained one packet already and is non-empty

	-since last DMA is completed before calling musb_g_tx, it is sure
	that fifo may accommodate at least one packet

Without applying the patch, new requst enqueued from .complte may not
have a chance to be loaded into fifo, then will never be completed and
cause infinite hangs.

With the patch, on my beagle B5, test#6(queued bulk in) can be passed and
test result may go beyond 33Mbyte/s if musb is configured as g_zero and
fifo mode 3 is taken, follows the test command:

	#testusb -D DEV_NAME -c 1024 -t 6 -s 32768 -g 8   [1]

[1],
    -source of testusb : tools/usb/testusb.c under linux kernel;

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Acked-by: Anand Gadiyar <gadiyar@ti.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-24 11:05:00 -07:00
Ming Lei
bd2e74d657 usb: musb: gadget: fix kernel panic if using out ep with FIFO_TXRX style
For shared fifo hw endpoint(with FIFO_TXRX style), only ep_in
field of musb_hw_ep is intialized in musb_g_init_endpoints, and
ep_out is not initialized, but musb_g_rx and rxstate may access
ep_out field of musb_hw_ep by the method below:

	musb_ep = &musb->endpoints[epnum].ep_out

which can cause the kernel panic[1] below, this patch fixes the issue
by getting 'musb_ep' from '&musb->endpoints[epnum].ep_in' for shared fifo
endpoint.

[1], kernel panic
[root@OMAP3EVM /]# musb_interrupt 1583: ** IRQ peripheral usb0008 tx0000 rx4000
musb_stage0_irq 460: <== Power=f0, DevCtl=99, int_usb=0x8
musb_g_rx 772: <== (null), rxcsr 4007 ffffffe8
musb_g_rx 786:  iso overrun on ffffffe8
Unable to handle kernel NULL pointer dereference at virtual address 00000008
pgd = c0004000
[00000008] *pgd=00000000
Internal error: Oops: 17 [#1] PREEMPT
last sysfs file: /sys/devices/platform/musb_hdrc/usb1/usb_device/usbdev1.1/dev
Modules linked in: g_zero
CPU: 0    Tainted: G        W    (2.6.35-rc6-gkh-wl+ #92)
PC is at musb_g_rx+0xfc/0x2ec
LR is at vprintk+0x3f4/0x458
pc : [<c02c07a4>]    lr : [<c006ccb0>]    psr: 20000193
sp : c760bd78  ip : c03c9d70  fp : c760bdbc
r10: 00000000  r9 : fa0ab1e0  r8 : 0000000e
r7 : c7e80158  r6 : ffffffe8  r5 : 00000001  r4 : 00004003
r3 : 00010003  r2 : c760bcd8  r1 : c03cd030  r0 : 0000002e
Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 10c5387d  Table: 8778c019  DAC: 00000017
Process kmemleak (pid: 421, stack limit = 0xc760a2e8)
Stack: (0xc760bd78 to 0xc760c000)
bd60:                                                       ffffffe8 c04b1b58
bd80: ffffffe8 c7c01ac0 00000000 c7e80d24 c0084238 00000001 00000001 c7e80158
bda0: 0000000e 00000008 00000099 000000f0 c760be04 c760bdc0 c02bcd68 c02c06b4
bdc0: 00000099 00000008 00004000 c760bdd8 c03cc4f8 00000000 00000002 c7e80158
bde0: c7d2e300 60000193 c760a000 0000005c 00000000 00000000 c760be24 c760be08
be00: c02bcecc c02bc1ac c7d2e300 c7d2e300 0000005c c760a000 c760be54 c760be28
be20: c00ad698 c02bce6c 00000000 c7d2e300 c067c258 0000005c c067c294 00000001
be40: c760a000 00000000 c760be74 c760be58 c00af984 c00ad5fc 0000005c 00000000
be60: 00000000 00000002 c760be8c c760be78 c0039080 c00af8d0 ffffffff fa200000
be80: c760beec c760be90 c0039b6c c003900c 00000001 00000000 c7d1e240 00000000
bea0: 00000000 c068bae8 00000000 60000013 00000001 00000000 00000000 c760beec
bec0: c0064ecc c760bed8 c00ff7d0 c003a0a8 60000013 ffffffff 00000000 c068bae8
bee0: c760bf24 c760bef0 c00ff7d0 c0064ec4 00000001 00000000 c00ff700 00000000
bf00: c0087f00 00000000 60000013 c0d76a70 c0e23795 00000001 c760bf4c c760bf28
bf20: c00ffdd8 c00ff70c c068bb08 c068bae8 60000013 c0100938 c068bb30 00000000
bf40: c760bf84 c760bf50 c010014c c00ffd84 00000001 00000000 c010000c 00012c00
bf60: c7c33f04 00012c00 c7c33f04 00000000 c0100938 00000000 c760bf9c c760bf88
bf80: c01009a8 c0100018 c760bfa8 c7c33f04 c760bff4 c760bfa0 c0088000 c0100944
bfa0: c760bf98 00000000 00000000 00000001 dead4ead ffffffff ffffffff c08ba2bc
bfc0: 00000000 c049e7fa 00000000 c0087f70 c760bfd0 c760bfd0 c7c33f04 c0087f70
bfe0: c006f5e8 00000013 00000000 c760bff8 c006f5e8 c0087f7c 7f0004ff df2000ff
Backtrace:
[<c02c06a8>] (musb_g_rx+0x0/0x2ec) from [<c02bcd68>] (musb_interrupt+0xbc8/0xcc0)
[<c02bc1a0>] (musb_interrupt+0x0/0xcc0) from [<c02bcecc>] (generic_interrupt+0x6c/0x84)
[<c02bce60>] (generic_interrupt+0x0/0x84) from [<c00ad698>] (handle_IRQ_event+0xa8/0x1ec)
 r7:c760a000 r6:0000005c r5:c7d2e300 r4:c7d2e300
[<c00ad5f0>] (handle_IRQ_event+0x0/0x1ec) from [<c00af984>] (handle_level_irq+0xc0/0x13c)
[<c00af8c4>] (handle_level_irq+0x0/0x13c) from [<c0039080>] (asm_do_IRQ+0x80/0xa0)
 r7:00000002 r6:00000000 r5:00000000 r4:0000005c
[<c0039000>] (asm_do_IRQ+0x0/0xa0) from [<c0039b6c>] (__irq_svc+0x4c/0xb4)
Exception stack(0xc760be90 to 0xc760bed8)
be80:                                     00000001 00000000 c7d1e240 00000000
bea0: 00000000 c068bae8 00000000 60000013 00000001 00000000 00000000 c760beec
bec0: c0064ecc c760bed8 c00ff7d0 c003a0a8 60000013 ffffffff
 r5:fa200000 r4:ffffffff
[<c0064eb8>] (sub_preempt_count+0x0/0x100) from [<c00ff7d0>] (find_and_get_object+0xd0/0x110)
 r5:c068bae8 r4:00000000
[<c00ff700>] (find_and_get_object+0x0/0x110) from [<c00ffdd8>] (scan_block+0x60/0x104)
 r8:00000001 r7:c0e23795 r6:c0d76a70 r5:60000013 r4:00000000
[<c00ffd78>] (scan_block+0x0/0x104) from [<c010014c>] (kmemleak_scan+0x140/0x484)
[<c010000c>] (kmemleak_scan+0x0/0x484) from [<c01009a8>] (kmemleak_scan_thread+0x70/0xcc)
 r8:00000000 r7:c0100938 r6:00000000 r5:c7c33f04 r4:00012c00
[<c0100938>] (kmemleak_scan_thread+0x0/0xcc) from [<c0088000>] (kthread+0x90/0x98)
 r5:c7c33f04 r4:c760bfa8
[<c0087f70>] (kthread+0x0/0x98) from [<c006f5e8>] (do_exit+0x0/0x684)
 r7:00000013 r6:c006f5e8 r5:c0087f70 r4:c7c33f04
Code: e3002312 e58d6000 e2833e16 eb0422d5 (e5963020)
---[ end trace f3d5e96f75c297b7 ]---

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Reviewed-by:   Sergei Shtylyov <sshtylyov@mvista.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-24 11:05:00 -07:00
Alan Stern
0026e00523 USB: fix bug in initialization of interface minor numbers
Recent changes in the usbhid layer exposed a bug in usbcore.  If
CONFIG_USB_DYNAMIC_MINORS is enabled then an interface may be assigned
a minor number of 0.  However interfaces that aren't registered as USB
class devices also have their minor number set to 0, during
initialization.  As a result usb_find_interface() may return the
wrong interface, leading to a crash.

This patch (as1418) fixes the problem by initializing every
interface's minor number to -1.  It also cleans up the
usb_register_dev() function, which besides being somewhat awkwardly
written, does not unwind completely on all its error paths.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Philip J. Turmel <philip@turmel.org>
Tested-by: Gabriel Craciunescu <nix.or.die@googlemail.com>
Tested-by: Alex Riesen <raa.lkml@gmail.com>
Tested-by: Matthias Bayer <jackdachef@gmail.com>
CC: Jiri Kosina <jkosina@suse.cz>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-24 11:05:00 -07:00
Dan Rosenberg
a0846f1868 USB: serial/mos*: prevent reading uninitialized stack memory
The TIOCGICOUNT device ioctl in both mos7720.c and mos7840.c allows
unprivileged users to read uninitialized stack memory, because the
"reserved" member of the serial_icounter_struct struct declared on the
stack is not altered or zeroed before being copied back to the user.
This patch takes care of it.

Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-20 16:05:00 -07:00
Ming Lei
fc8f2a7608 USB: otg: twl4030: fix phy initialization(v1)
Commit 461c317705eca5cac09a360f488715927fd0a927(into 2.6.36-v3)
is put forward to power down phy if no usb cable is connected,
but does introduce the two issues below:

1), phy is not into work state if usb cable is connected
with PC during poweron, so musb device mode is not usable
in such case, follows the reasons:
	-twl4030_phy_resume is not called, so
		regulators are not enabled
		i2c access are not enabled
		usb mode not configurated

2), The kernel warings[1] of regulators 'unbalanced disables'
is caused if poweron without usb cable connected
with PC or b-device.

This patch fixes the two issues above:
	-power down phy only if no usb cable is connected with PC
and b-device
	-do phy initialization(via __twl4030_phy_resume) if usb cable
is connected with PC(vbus event) or another b-device(ID event) in
twl4030_usb_probe.

This patch also doesn't put VUSB3V1 LDO into active mode in
twl4030_usb_ldo_init until VBUS/ID change detected, so we can
save more power consumption than before.

This patch is verified OK on Beagle board either connected with
usb cable or not when poweron.

[1]. warnings of 'unbalanced disables' of regulators.
[root@OMAP3EVM /]# dmesg
------------[ cut here ]------------
WARNING: at drivers/regulator/core.c:1357 _regulator_disable+0x38/0x128()
unbalanced disables for VUSB1V8
Modules linked in:
Backtrace:
[<c0030c48>] (dump_backtrace+0x0/0x110) from [<c034f5a8>] (dump_stack+0x18/0x1c)
 r7:c78179d8 r6:c01ed6b8 r5:c0410822 r4:0000054d
[<c034f590>] (dump_stack+0x0/0x1c) from [<c0057da8>] (warn_slowpath_common+0x54/0x6c)
[<c0057d54>] (warn_slowpath_common+0x0/0x6c) from [<c0057e64>] (warn_slowpath_fmt+0x38/0x40)
 r9:00000000 r8:00000000 r7:c78e6608 r6:00000000 r5:fffffffb
 r4:c78e6c00
[<c0057e2c>] (warn_slowpath_fmt+0x0/0x40) from [<c01ed6b8>] (_regulator_disable+0x38/0x128)
 r3:c0410e53 r2:c0410ad5
[<c01ed680>] (_regulator_disable+0x0/0x128) from [<c01ed87c>] (regulator_disable+0x24/0x38)
 r7:c78e6608 r6:00000000 r5:c78e6c40 r4:c78e6c00
[<c01ed858>] (regulator_disable+0x0/0x38) from [<c02382dc>] (twl4030_phy_power+0x15c/0x17c)
 r5:c78595c0 r4:00000000
[<c0238180>] (twl4030_phy_power+0x0/0x17c) from [<c023831c>] (twl4030_phy_suspend+0x20/0x2c)
 r6:00000000 r5:c78595c0 r4:c78595c0
[<c02382fc>] (twl4030_phy_suspend+0x0/0x2c) from [<c0238638>] (twl4030_usb_irq+0x11c/0x16c)
 r5:c78595c0 r4:00000040
[<c023851c>] (twl4030_usb_irq+0x0/0x16c) from [<c034ec18>] (twl4030_usb_probe+0x2c4/0x32c)
 r6:00000000 r5:00000000 r4:c78595c0
[<c034e954>] (twl4030_usb_probe+0x0/0x32c) from [<c02152a0>] (platform_drv_probe+0x20/0x24)
 r7:00000000 r6:c047d49c r5:c78e6608 r4:c047d49c
[<c0215280>] (platform_drv_probe+0x0/0x24) from [<c0214244>] (driver_probe_device+0xd0/0x190)
[<c0214174>] (driver_probe_device+0x0/0x190) from [<c02143d4>] (__device_attach+0x44/0x48)
 r7:00000000 r6:c78e6608 r5:c78e6608 r4:c047d49c
[<c0214390>] (__device_attach+0x0/0x48) from [<c0213694>] (bus_for_each_drv+0x50/0x90)
 r5:c0214390 r4:00000000
[<c0213644>] (bus_for_each_drv+0x0/0x90) from [<c0214474>] (device_attach+0x70/0x94)
 r6:c78e663c r5:c78e6608 r4:c78e6608
[<c0214404>] (device_attach+0x0/0x94) from [<c02134fc>] (bus_probe_device+0x2c/0x48)
 r7:00000000 r6:00000002 r5:c78e6608 r4:c78e6600
[<c02134d0>] (bus_probe_device+0x0/0x48) from [<c0211e48>] (device_add+0x340/0x4b4)
[<c0211b08>] (device_add+0x0/0x4b4) from [<c021597c>] (platform_device_add+0x110/0x16c)
[<c021586c>] (platform_device_add+0x0/0x16c) from [<c0220cb0>] (add_numbered_child+0xd8/0x118)
 r7:00000000 r6:c045f15c r5:c78e6600 r4:00000000
[<c0220bd8>] (add_numbered_child+0x0/0x118) from [<c001c618>] (twl_probe+0x3a4/0x72c)
[<c001c274>] (twl_probe+0x0/0x72c) from [<c02601ac>] (i2c_device_probe+0x7c/0xa4)
[<c0260130>] (i2c_device_probe+0x0/0xa4) from [<c0214244>] (driver_probe_device+0xd0/0x190)
 r5:c7856e20 r4:c047c860
[<c0214174>] (driver_probe_device+0x0/0x190) from [<c02143d4>] (__device_attach+0x44/0x48)
 r7:c7856e04 r6:c7856e20 r5:c7856e20 r4:c047c860
[<c0214390>] (__device_attach+0x0/0x48) from [<c0213694>] (bus_for_each_drv+0x50/0x90)
 r5:c0214390 r4:00000000
[<c0213644>] (bus_for_each_drv+0x0/0x90) from [<c0214474>] (device_attach+0x70/0x94)
 r6:c7856e54 r5:c7856e20 r4:c7856e20
[<c0214404>] (device_attach+0x0/0x94) from [<c02134fc>] (bus_probe_device+0x2c/0x48)
 r7:c7856e04 r6:c78fd048 r5:c7856e20 r4:c7856e20
[<c02134d0>] (bus_probe_device+0x0/0x48) from [<c0211e48>] (device_add+0x340/0x4b4)
[<c0211b08>] (device_add+0x0/0x4b4) from [<c0211fd8>] (device_register+0x1c/0x20)
[<c0211fbc>] (device_register+0x0/0x20) from [<c0260aa8>] (i2c_new_device+0xec/0x150)
 r5:c7856e00 r4:c7856e20
[<c02609bc>] (i2c_new_device+0x0/0x150) from [<c0260dc0>] (i2c_register_adapter+0xa0/0x1c4)
 r7:00000000 r6:c78fd078 r5:c78fd048 r4:c781d5c0
[<c0260d20>] (i2c_register_adapter+0x0/0x1c4) from [<c0260f80>] (i2c_add_numbered_adapter+0x9c/0xb4)
 r7:00000a28 r6:c04600a8 r5:c78fd048 r4:00000000
[<c0260ee4>] (i2c_add_numbered_adapter+0x0/0xb4) from [<c034efa4>] (omap_i2c_probe+0x324/0x3e8)
 r5:00000000 r4:c78fd000
[<c034ec80>] (omap_i2c_probe+0x0/0x3e8) from [<c02152a0>] (platform_drv_probe+0x20/0x24)
[<c0215280>] (platform_drv_probe+0x0/0x24) from [<c0214244>] (driver_probe_device+0xd0/0x190)
[<c0214174>] (driver_probe_device+0x0/0x190) from [<c021436c>] (__driver_attach+0x68/0x8c)
 r7:c78b2140 r6:c047e214 r5:c04600e4 r4:c04600b0
[<c0214304>] (__driver_attach+0x0/0x8c) from [<c021399c>] (bus_for_each_dev+0x50/0x84)
 r7:c78b2140 r6:c047e214 r5:c0214304 r4:00000000
[<c021394c>] (bus_for_each_dev+0x0/0x84) from [<c0214068>] (driver_attach+0x20/0x28)
 r6:c047e214 r5:c047e214 r4:c00270d0
[<c0214048>] (driver_attach+0x0/0x28) from [<c0213274>] (bus_add_driver+0xa8/0x228)
[<c02131cc>] (bus_add_driver+0x0/0x228) from [<c02146a4>] (driver_register+0xb0/0x13c)
[<c02145f4>] (driver_register+0x0/0x13c) from [<c0215744>] (platform_driver_register+0x4c/0x60)
 r9:00000000 r8:c001f688 r7:00000013 r6:c005b6fc r5:c00083dc
r4:c00270d0
[<c02156f8>] (platform_driver_register+0x0/0x60) from [<c001f69c>] (omap_i2c_init_driver+0x14/0x1c)
[<c001f688>] (omap_i2c_init_driver+0x0/0x1c) from [<c002c460>] (do_one_initcall+0xd0/0x1a4)
[<c002c390>] (do_one_initcall+0x0/0x1a4) from [<c0008478>] (kernel_init+0x9c/0x154)
[<c00083dc>] (kernel_init+0x0/0x154) from [<c005b6fc>] (do_exit+0x0/0x688)
 r5:c00083dc r4:00000000
---[ end trace 1b75b31a2719ed1d ]---

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Felipe Balbi <me@felipebalbi.com>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-20 16:05:00 -07:00
Alek Du
fc92825061 USB: EHCI: Disable langwell/penwell LPM capability
We have to do so due to HW limitation.

Signed-off-by: Alek Du <alek.du@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-20 16:04:59 -07:00
Mathias Nyman
024cfa5943 usb: musb_debugfs: don't use the struct file private_data field with seq_files
seq_files use the private_data field of a file struct for storing a seq_file structure,
data should be stored in seq_file's own private field (e.g. file->private_data->private)
Otherwise seq_release() will free the private data when the file is closed.

Signed-off-by: Mathias Nyman <mathias.nyman@nokia.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-20 16:04:56 -07:00
Paul Mundt
0238a0d8c3 usb: Fix up r8a66597-hcd section mismatches.
The _remove() routine is flagged __init_or_module, despite only being
used in a __devexit context. As the rest of the driver is already
balanced out with __devinit, switch to __devexit and __devexit_p()
wrapping.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-09-16 17:16:31 +09:00
David S. Miller
e548833df8 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	net/mac80211/main.c
2010-09-09 22:27:33 -07:00
Ondrej Zary
92e32eaee2 cxacru: ignore cx82310_eth devices
Ignore ADSL routers, which can have the same vendor and product IDs
as ADSL modems but should be handled by the cx82310_eth driver.

This intentionally ignores device IDs that aren't currently handled
by cx82310_eth. There may be other device IDs that perhaps shouldn't
be claimed by cxacru.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-08 21:29:20 -07:00
Luke Lowrey
6573738834 USB: ftdi_sio: Added custom PIDs for ChamSys products
Added the 0xDAF8 to 0xDAFF PID range for ChamSys limited USB interface/wing products

Signed-off-by: Luke Lowrey <luke@chamsys.co.uk>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:41 -07:00
Toby Gray
577045c0a7 USB: cdc-acm: Fixing crash when ACM probing interfaces with no endpoint descriptors.
Certain USB devices, such as the Nokia X6 mobile phone, don't expose any
endpoint descriptors on some of their interfaces. If the ACM driver is forced
to probe all interfaces on a device the a NULL pointer dereference will occur
when the ACM driver attempts to use the endpoint of the alternative settings.
One way to get the ACM driver to probe all the interfaces is by using the
/sys/bus/usb/drivers/cdc_acm/new_id interface.

This patch checks that the endpoint pointer for the current alternate settings
is non-NULL before using it.

Signed-off-by: Toby Gray <toby.gray@realvnc.com>
Cc: Oliver Neukum <oliver@neukum.name>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:41 -07:00
Philippe Corbes
5b239f0aeb USB: cdc-acm: Add pseudo modem without AT command capabilities
cdc-acm.c : Manage pseudo-modem without AT commands capabilities
  Enable to drive electronic simple gadgets based on microcontrolers.
  The Interface descriptor is like this:
    bInterfaceClass         2 Communications
    bInterfaceSubClass      2 Abstract (modem)
    bInterfaceProtocol      0 None

Signed-off-by: Philippe Corbes <philippe.corbes@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:41 -07:00
Simon Arlott
902ffc3c70 USB: cxacru: Use a bulk/int URB to access the command endpoint
The command endpoint is either a bulk or interrupt endpoint, but using
the wrong type of transfer causes an error if CONFIG_USB_DEBUG is
enabled after commit f661c6f8c6, which
checks for this mismatch.

Detect which type of endpoint it is and use a bulk/int URB as
appropriate. There are other function calls specifying a bulk pipe,
but usb_clear_halt doesn't use the pipe type (only the endpoint) and
usb_bulk_msg auto-detects interrupt transfers.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Cc: stable <stable@kernel.org> [.34 and newer]
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:41 -07:00
Dave Ludlow
870408c829 usb: serial: mos7840: Add USB IDs to support more B&B USB/RS485 converters.
Add the USB IDs needed to support the B&B USOPTL4-4P, USO9ML2-2P, and
USO9ML2-4P.  This patch expands and corrects a typo in the patch sent
on 08-31-2010.

Signed-off-by: Dave Ludlow <dave.ludlow@bay.ws>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:41 -07:00
Toby Gray
4035e45632 USB: cdc-acm: Adding second ACM channel support for various Nokia and one Samsung phones
S60 phones from Nokia and Samsung expose two ACM channels. The first is a modem
with a standard AT-command interface, which is picked up correctly by CDC-ACM.

The second ACM port is marked as having a vendor-specific protocol. This means
that the ACM driver will not claim the second channel by default.

This adds support for the second ACM channel for the following devices:
    Nokia E63
    Nokia E75
    Nokia 6760 Slide
    Nokia E52
    Nokia E55
    Nokia E72
    Nokia X6
    Nokia N97 Mini
    Nokia 5800 Xpressmusic
    Nokia E90
    Samsung GTi8510 (INNOV8)

Signed-off-by: Toby Gray <toby.gray@realvnc.com>
Cc: Oliver Neukum <oliver@neukum.name>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:41 -07:00
Dave Ludlow
caf3a636a9 usb: serial: mos7840: Add USB ID to support the B&B Electronics USOPTL4-2P.
Add the USB ID needed to support B&B Electronic's 2-port, optically-isolated,
powered, USB to RS485 converter.

Signed-off-by: Dave Ludlow <dave.ludlow@bay.ws>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:41 -07:00
Bill Pemberton
3c35b002da USB: ssu100: turn off debug flag
Remove the hard coding of the debug flag to 1.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:41 -07:00
Thadeu Lima de Souza Cascardo
0791971ba8 usb: allow drivers to use allocated bandwidth until unbound
When using the remove sysfs file, the device configuration is set to -1
(unconfigured). This eventually unbind drivers with the bandwidth_mutex
held. Some drivers may call functions that hold said mutex, like
usb_reset_device. This is the case for rtl8187, for example. This will
lead to the same process holding the mutex twice, which deadlocks.

Besides, according to Alan Stern:
"The deadlock problem probably could be handled somehow, but there's a
separate issue: Until the usb_disable_device call finishes unbinding
the drivers, the drivers are free to continue using their allocated
bandwidth.  We musn't change the bandwidth allocations until after the
unbinding is done.  So this patch is indeed necessary."

Unbinding the driver before holding the bandwidth_mutex solves the
problem. If any operation after that fails, drivers are not bound again.
But that would be a problem anyway that the user may solve resetting the
device configuration to one that works, just like he would need to do in
most other failure cases.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:40 -07:00
A E Lawrence
5b22a32e76 USB: cp210x usb driver: add USB_DEVICE for Pirelli DP-L10 mobile.
The Pirelli DP-L10 mobile is sold under various brand names. One, already
supported by cp210x, is the T-COM TC300. Here is the lsusb for that version:
-------------------------------------------------------------------
Bus 001 Device 002: ID 0489:e000 Foxconn / Hon Hai T-Com TC 300
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x0489 Foxconn / Hon Hai
  idProduct          0xe000 T-Com TC 300
  bcdDevice            1.00
  iManufacturer           1 Silicon Labs
  iProduct                2 TC 300
  iSerial                 3 0001
    [snip]
---------------------------------------------------------------------------

However the native Pirelli DP-L10 is not supported:
------------------------------------------------------------------
Bus 001 Device 003: ID 0489:e003 Foxconn / Hon Hai Pirelli DP-L10
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               1.10
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0 
  bDeviceProtocol         0 
  bMaxPacketSize0        64
  idVendor           0x0489 Foxconn / Hon Hai
  idProduct          0xe003 Pirelli DP-L10
  bcdDevice            1.00
  iManufacturer           1 Silicon Labs
  iProduct                2 DP-L10
  iSerial                 3 0001
    [snip]
-------------------------------------------------------------------------

All that is required is an extra USB_DEVICE entry:

{ USB_DEVICE(0x0489, 0xE003) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM
+Mobile */

The patch adds that entry. Tested under 2.6.36-rc2 from git.

Signed-off-by: A E Lawrence <lawrence_a_e@ntlworld.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:40 -07:00
Jason Detring
0bf7a81c5d USB: cp210x: Add B&G H3000 link cable ID
This is the cable between an H3000 navigation unit and a multi-function display.
http://www.bandg.com/en/Products/H3000/Spares-and-Accessories/Cables/H3000-CPU-USB-Cable-Pack/

Signed-off-by: Jason Detring <jason.detring@navico.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:40 -07:00
Craig Shelley
541e05ec3a USB: CP210x Add new device ID
New device ID added for Balluff RFID reader.

Signed-off-by: Craig Shelley <craig@microtron.org.uk>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:40 -07:00
Dirk De Schepper
c7aa8f44b4 USB: option: fix incorrect novatel entries
Unfortunately some of the hardware PID belonging to auto-install CDROM
(AICD) of Novatel modems found their way into the option module. This
causes the AICD to be treated as a modem in stead of a disk. Since the
modem ports do not appear until after the AICD is ejected, this
essentially disables the modem. After a couple of minutes the AICD
should auto-eject, but it is just too long a wait. The frequency of the
failure seems to depend on both the hardware and the linux distribution.

Here is a patch that fixes this up, and also adds a couple of new PID,
offering some explanations and removing some incomplete and unnecessary
comments.

Signed-off-by: Dirk De Schepper <ddeschepper@nvtl.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:40 -07:00
Maxim Osipov
037d3656ad USB: Fix kernel oops with g_ether and Windows
Please find attached patch for
https://bugzilla.kernel.org/show_bug.cgi?id=16023 problem.


Signed-off-by: Maxim Osipov <maxim.osipov@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:40 -07:00
Henrik Kretzschmar
793f03aa7b USB: rndis: section mismatch fix
This patch removes the following section mismatch warning,
by moving the function rndis_init() from .init.text to .text.

WARNING: vmlinux.o(.text+0x1aeca5a): Section mismatch in reference from the function rndis_bind_config() to the function .init.text:rndis_init()
The function rndis_bind_config() references
the function __init rndis_init().
This is often because rndis_bind_config lacks a __init
annotation or the annotation of rndis_init is wrong.

Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:40 -07:00
Dan Carpenter
08a3b3b1c2 USB: ehci-ppc-of: problems in unwind
The iounmap(ehci->ohci_hcctrl_reg); should be the first thing we do
because the ioremap() was the last thing we did.  Also if we hit any of
the goto statements in the original code then it would have led to a
NULL dereference of "ehci".  This bug was introduced in: 796bcae736
"USB: powerpc: Workaround for the PPC440EPX USBH_23 errata [take 3]"

I modified the few lines in front a little so that my code didn't
obscure the return success code path.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Grant Likely <grant.likely@secretlab.ca>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:40 -07:00
Maurus Cuelenaere
0f1312b260 USB: s3c-hsotg: Remove DEBUG define
DEBUG is defined unconditionally, remove it as this clutters the message log.

Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-09-03 17:33:40 -07:00
Jiri Kosina
5c5daf571a Revert "drivers/usb: Remove unnecessary return's from void functions" partially
This is a partial revert of 7f26b3a753 ("drivers/usb: Remove unnecessary
return's from void functions") as this hunk will go through USB tree
due to conflict.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-09-02 16:35:22 +02:00
Linus Torvalds
2637d139fb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: pxa27x_keypad - remove input_free_device() in pxa27x_keypad_remove()
  Input: mousedev - fix regression of inverting axes
  Input: uinput - add devname alias to allow module on-demand load
  Input: hil_kbd - fix compile error
  USB: drop tty argument from usb_serial_handle_sysrq_char()
  Input: sysrq - drop tty argument form handle_sysrq()
  Input: sysrq - drop tty argument from sysrq ops handlers
2010-08-28 13:55:31 -07:00
Galen Seitz
ea233f8055 USB: ftdi_sio: add product ID for Lenz LI-USB
Add ftdi product ID for Lenz LI-USB, a model train interface.  This
was NOT tested against 2.6.35, but a similar patch was tested with the
CentOS 2.6.18-194.11.1.el5 kernel.  It wasn't clear to me what
ordering is being used in ftdi_sio.c, so I inserted the ID after another
model train entry(SPROG_II).

Signed-off-by: Galen Seitz <galens@seitzassoc.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:17 -07:00
Kulikov Vasiliy
1865a9c382 USB: adutux: fix misuse of return value of copy_to_user()
copy_to_user() returns number of not copied bytes, not error code.

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:17 -07:00
Kulikov Vasiliy
6d4d455486 USB: iowarrior: fix misuse of return value of copy_to_user()
copy_to_user() returns number of not copied bytes, not error code.

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:16 -07:00
Andiry Xu
14184f9b80 USB: xHCI: update ring dequeue pointer when process missed tds
This patch fixes a isoc transfer bug reported by Sander Eikelenboom.
When ep->skip is set, endpoint ring dequeue pointer should be updated
when processed every missed td. Although ring dequeue pointer will also
be updated when ep->skip is clear, leave it intact during missed tds
processing may cause two issues:

1). If the very next valid transfer following missed tds is a short
transfer, its actual_length will be miscalculated;
2). If there are too many missed tds during transfer, new inserted tds
may found the transfer ring full and urb enqueue fails.

Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Tested-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:16 -07:00
John Youn
a1669b2c64 USB: xhci: Remove buggy assignment in next_trb()
The code to increment the TRB pointer has a slight ambiguity that could
lead to a bug on different compilers.  The ANSI C specification does not
specify the precedence of the assignment operator over the postfix
operator.  gcc 4.4 produced the correct code (increment the pointer and
assign the value), but a MIPS compiler that one of John's clients used
assigned the old (unincremented) value.

Remove the unnecessary assignment to make all compilers produce the
correct assembly.

Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:16 -07:00
Martin Michlmayr
666cc076d2 USB: ftdi_sio: Add ID for Ionics PlugComputer
Add the ID for the Ionics PlugComputer (<http://ionicsplug.com/>).

Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:16 -07:00
Roel Kluin
fd6e5bbb24 USB: serial: io_ti.c: don't return 0 if writing the download record failed
If the write download record failed we shouldn't return 0.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:16 -07:00
Felipe Balbi
461c317705 USB: otg: twl4030: fix wrong assumption of starting state
The reset state of twl4030-usb is not sleeping, it starts
up awaken and we need to disable it if we have booted
with a disconnected cable to avoid over consumption on
the default state.

To avoid problems later, we read the current state of the
transceiver from the PHY_PWR_CTRL register. The bootloader
can, anyways, put the device to sleep before us.

Tested on a custom OMAP board.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:16 -07:00
Julia Lawall
7c81aafaf0 USB: gadget: Return -ENOMEM on memory allocation failure
In this code, 0 is returned on memory allocation failure, even though other
failures return -ENOMEM or other similar values.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression ret;
expression x,e1,e2,e3;
@@

ret = 0
... when != ret = e1
*x = \(kmalloc\|kcalloc\|kzalloc\)(...)
... when != ret = e2
if (x == NULL) { ... when != ret = e3
  return ret;
}
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:16 -07:00
Randy Dunlap
d187abb9a8 USB: gadget: fix composite kernel-doc warnings
Warning(include/linux/usb/composite.h:284): No description found for parameter 'disconnect'
Warning(drivers/usb/gadget/composite.c:744): No description found for parameter 'c'
Warning(drivers/usb/gadget/composite.c:744): Excess function parameter 'cdev' description in 'usb_string_ids_n'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:16 -07:00
Bill Pemberton
6b8f1ca558 USB: ssu100: set tty_flags in ssu100_process_packet
flag was never set in ssu100_process_packet.  Add logic to set it
before calling tty_insert_flip_*

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:16 -07:00
Bill Pemberton
85dee135b8 USB: ssu100: add disconnect function for ssu100
Add a disconnect function to the functions of this device.  The
disconnect is a call to usb_serial_generic_disconnect() so it requires
that symbol to be exported from generic.c.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:16 -07:00
Bill Pemberton
5c7efeb76e USB: serial: export symbol usb_serial_generic_disconnect
This is needed by the ssu100 driver to use this function.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:16 -07:00
Bill Pemberton
f81c83db56 USB: ssu100: rework logic for TIOCMIWAIT
Rework the logic for TIOCMIWAIT to use wait_event_interruptible.

This also adds support for TIOCGICOUNT.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:16 -07:00
Bill Pemberton
556f1a0e9c USB: ssu100: add register parameter to ssu100_setregister
The function ssu100_setregister was hard coded to only set the MCR
register.  Add a register parameter so that other registers can be
set.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:15 -07:00
Bill Pemberton
79f203a26a USB: ssu100: remove duplicate #defines in ssu100
The ssu100 uses a TI16C550C UART so the SERIAL_ defines in this code
are duplicates of those found in serial_reg.h.  Remove the defines in
ssu100.c and use the ones in the header file.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:15 -07:00
Bill Pemberton
9b2cef31f2 USB: ssu100: refine process_packet in ssu100
The status information does not appear at the start of each incoming
packet so the check for len < 4 at the start of ssu100_process_packet
is wrong.  Remove it.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:15 -07:00
Bill Pemberton
175230587b USB: ssu100: add locking for port private data in ssu100
Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:15 -07:00
Axel Lin
96f2a34d2c USB: r8a66597-udc: return -ENOMEM if kzalloc() fails
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:15 -07:00
Greg Kroah-Hartman
0827a9ff2b USB: io_ti: check firmware version before updating
If we can't read the firmware for a device from the disk, and yet the
device already has a valid firmware image in it, we don't want to
replace the firmware with something invalid.  So check the version
number to be less than the current one to verify this is the correct
thing to do.


Reported-by: Chris Beauchamp <chris@chillibean.tv>
Tested-by: Chris Beauchamp <chris@chillibean.tv>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:15 -07:00
Michael Wileczka
d1ab903d25 USB: ftdi_sio: fix endianess of max packet size
The USB max packet size (always little-endian) was not being byte
swapped on big-endian systems.

Applicable since [USB: ftdi_sio: fix hi-speed device packet size calculation] approx 2.6.31

Signed-off-by: Michael Wileczka <mikewileczka@yahoo.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:15 -07:00
Craig Shelley
72916791cb USB: CP210x Fix Break On/Off
The definitions for BREAK_ON and BREAK_OFF are inverted, causing break
requests to fail. This patch sets BREAK_ON and BREAK_OFF to the correct
values.

Signed-off-by: Craig Shelley <craig@microtron.org.uk>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:15 -07:00
Jef Driesen
f36ecd5de9 USB: pl2303: New vendor and product id
Add support for the Zeagle N2iTiON3 dive computer interface. Since
Zeagle devices are actually manufactured by Seiko, this patch will
support other Seiko based models as well.

Signed-off-by: Jef Driesen <jefdriesen@telenet.be>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:15 -07:00
Ming Lei
d92a3ca689 USB: serial: fix leak of usb serial module refrence count
The patch with title below makes reference count of usb serial module
always more than one after driver is bound.

	USB-BKL: Remove BKL use for usb serial driver probing

In fact, the patch above only replaces lock_kernel() with try_module_get()
, and does not use module_put() to do what unlock_kernel() did, so casue leak
of reference count of usb serial module and the module can not be unloaded
after serial driver is bound with device.

This patch fixes the issue, also simplifies such things:
	-only call try_module_get() once in the entry of usb_serial_probe()
	-only call module_put() once in the exit of usb_serial_probe

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Cc: Johan Hovold <jhovold@gmail.com>
Cc: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:15 -07:00
Ross Burton
0eee6a2b2a USB: add device IDs for igotu to navman
I recently bought a i-gotU USB GPS, and whilst hunting around for linux
support discovered this post by you back in 2009:

http://kerneltrap.org/mailarchive/linux-usb/2009/3/12/5148644

>Try the navman driver instead.  You can either add the device id to the
> driver and rebuild it, or do this before you plug the device in:
> 	modprobe navman
> 	echo -n "0x0df7 0x0900" > /sys/bus/usb-serial/drivers/navman/new_id
>
> and then plug your device in and see if that works.

I can confirm that the navman driver works with the right device IDs on
my i-gotU GT-600, which has the same device IDs.  Attached is a patch
adding the IDs.

From: Ross Burton <ross@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:15 -07:00
Michael Hennerich
ebb8a4e487 USB: isp1760: use a write barrier to ensure proper ndelay timing
The ISP1760 has some timing requirements where it has to delay a short
period after a write to a register has started.  However, this delay is
from the time the write hits the USB chip (the ISP1760), not from the
time where the processor started processing the write.  So on a quick
enough processor, it is sometimes possible for the write to not hit the
device before we start delaying, and we then violate the part's timing
requirements, so things stop working.

To avoid all this, insert a write barrier after the register write and
before the timing delay/register read so we can guarantee we only start
counting time after the write has hit the device.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:15 -07:00
Michael Tokarev
76078dc4fc USB: option: add Celot CT-650
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:14 -07:00
Dan Carpenter
9a887162be USB: uvc_v4l2: cleanup test for end of loop
We're trying to test for the the end of the loop here.  "format" is
never NULL.  We don't know what "format->fcc" is because we're past the
end of the loop and I think "fmt->fmt.pix.pixelformat" comes from the
user so we don't know what that is either.  It works, but it's cleaner
to just test to see if (i == ARRAY_SIZE(uvc_formats).

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-23 20:50:14 -07:00
Dmitry Torokhov
6ee9f4b4af USB: drop tty argument from usb_serial_handle_sysrq_char()
Since handle_sysrq() does not take tty as argument anymore we can
drop it from usb_serial_handle_sysrq_char() as well.

Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-08-21 00:37:39 -07:00
Dmitry Torokhov
f335397d17 Input: sysrq - drop tty argument form handle_sysrq()
Sysrq operations do not accept tty argument anymore so no need to pass
it to us.

[Stephen Rothwell <sfr@canb.auug.org.au>: fix build breakage in drm code
 caused by sysrq using bool but not including linux/types.h]

[Sachin Sant <sachinp@in.ibm.com>: fix build breakage in s390 keyboadr
 driver]

Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Jason Wessel <jason.wessel@windriver.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-08-21 00:34:45 -07:00
Linus Torvalds
1c00650c23 Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c: I2C bus multiplexer driver pca954x
  i2c: Multiplexed I2C bus core support
  i2c: Use a separate mutex for userspace client lists
  i2c: Make i2c_default_probe self-sufficient
  i2c: Drop dummy variable
  i2c: Move adapter locking helpers to i2c-core
  V4L/DVB: Use custom I2C probing function mechanism
  i2c: Add support for custom probe function
  i2c-dev: Use memdup_user
  i2c-dev: Remove unnecessary kmalloc casts
2010-08-12 10:06:29 -07:00
Linus Torvalds
26df0766a7 Merge branch 'params' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus
* 'params' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: (22 commits)
  param: don't deref arg in __same_type() checks
  param: update drivers/acpi/debug.c to new scheme
  param: use module_param in drivers/message/fusion/mptbase.c
  ide: use module_param_named rather than module_param_call
  param: update drivers/char/ipmi/ipmi_watchdog.c to new scheme
  param: lock if_sdio's lbs_helper_name and lbs_fw_name against sysfs changes.
  param: lock myri10ge_fw_name against sysfs changes.
  param: simple locking for sysfs-writable charp parameters
  param: remove unnecessary writable charp
  param: add kerneldoc to moduleparam.h
  param: locking for kernel parameters
  param: make param sections const.
  param: use free hook for charp (fix leak of charp parameters)
  param: add a free hook to kernel_param_ops.
  param: silence .init.text references from param ops
  Add param ops struct for hvc_iucv driver.
  nfs: update for module_param_named API change
  AppArmor: update for module_param_named API change
  param: use ops in struct kernel_param, rather than get and set fns directly
  param: move the EXPORT_SYMBOL to after the definitions.
  ...
2010-08-12 10:01:59 -07:00
Linus Torvalds
58d4ea65b9 Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6
* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6:
  mmc_spi: Fix unterminated of_match_table
  of/sparc: fix build regression from of_device changes
  of/device: Replace struct of_device with struct platform_device
2010-08-12 09:11:31 -07:00
Jean Delvare
9a94241afc i2c: Add support for custom probe function
The probe method used by i2c_new_probed_device() may not be suitable
for all cases. Let the caller provide its own, optional probe
function.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-08-11 18:20:56 +02:00
Rusty Russell
d6d1b650ae param: simple locking for sysfs-writable charp parameters
Since the writing to sysfs can free the old one, we need to block that
when we access the charp variables.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Phil Carmody <ext-phil.2.carmody@nokia.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Dan Williams <dcbw@redhat.com>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: Jing Huang <huangj@brocade.com>
Cc: James E.J. Bottomley <James.Bottomley@suse.de>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: libertas-dev@lists.infradead.org
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Cc: linux-usb@vger.kernel.org
2010-08-11 23:04:31 +09:30
Jiri Kosina
6396fc3b3f Merge branch 'master' into for-next
Conflicts:
	fs/exofs/inode.c
2010-08-11 09:36:51 +02:00
Linus Torvalds
9895850b23 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (148 commits)
  USB: serial: fix stalled writes
  USB: remove fake "address-of" expressions
  USB: fix thread-unsafe anchor utiliy routines
  USB: usbtest: support test device with only one iso-in or iso-out endpoint
  USB: usbtest: avoid to free coherent buffer in atomic context
  USB: xhci: Set DMA mask for host.
  USB: xhci: Don't flush doorbell writes.
  USB: xhci: Reduce reads and writes of interrupter registers.
  USB: xhci: Make xhci_set_hc_event_deq() static.
  USB: xhci: Minimize HW event ring dequeue pointer writes.
  USB: xhci: Make xhci_handle_event() static.
  USB: xhci: Remove unnecessary reads of IRQ_PENDING register.
  USB: xhci: Performance - move xhci_work() into xhci_irq()
  USB: xhci: Performance - move interrupt handlers into xhci-ring.c
  USB: xhci: Performance - move functions that find ep ring.
  USB:: fix linux/usb.h kernel-doc warnings
  USB: add USB serial ssu100 driver
  USB: usb-storage: implement autosuspend
  USB: ehci: fix remove of ehci debugfs dir
  USB: Add USB 2.0 to ssb ohci driver
  ...
2010-08-10 15:05:02 -07:00
Johan Hovold
b58af4066d USB: serial: fix stalled writes
As David VomLehn points out, it was possible to receive an interrupt
before clearing the free-urb flag which could lead to the urb being
incorrectly marked as busy.

For the same reason, move tx_bytes accounting so that it will never be
negative.

Note that the free-flags set and clear operations do not need any
additional locking as they are manipulated while USB_SERIAL_WRITE_BUSY
is set.

Reported-by: David VomLehn <dvomlehn@cisco.com>
Tested-by: David VomLehn <dvomlehn@cisco.com>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:45 -07:00
Alan Stern
b409214c68 USB: remove fake "address-of" expressions
Fake "address-of" expressions that evaluate to NULL generally confuse
readers and can provoke compiler warnings.  This patch (as1412)
removes three such fake expressions, using "#ifdef"s in their place.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:45 -07:00
Christian Lamparter
b3e670443b USB: fix thread-unsafe anchor utiliy routines
This patch fixes a race condition in two utility routines
related to the removal/unlinking of urbs from an anchor.

If two threads are concurrently accessing the same anchor,
both could end up with the same urb - thinking they are
the exclusive owner.

Alan Stern pointed out a related issue in
usb_unlink_anchored_urbs:

"The URB isn't removed from the anchor until it completes
 (as a by-product of completion, in fact), which might not
 be for quite some time after the unlink call returns.
 In the meantime, the subroutine will keep trying to unlink
 it, over and over again."

Cc: stable <stable@kernel.org>
Cc: Oliver Neukum <oneukum@suse.de>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:45 -07:00
Ming Lei
951fd8ee6a USB: usbtest: support test device with only one iso-in or iso-out endpoint
It is very common that one altsetting may include only one iso-in or iso-out
single endpoint, especially for high bandwidth endpoint, so support it.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:45 -07:00
Ming Lei
e10e1bec8e USB: usbtest: avoid to free coherent buffer in atomic context
This patch fixes the warning below:
[30753.755998] ------------[ cut here ]------------
[30753.755998] WARNING: at /home/tom/git/linux-2.6/linux-2.6-next/arch/x86/include/asm/dma-mapping.h:155 hcd_buffer_free+0xb1/0xd4 [usbcore]()
[30753.755998] Hardware name: 6475EK2
[30753.755998] Modules linked in: uvcvideo ehci_hcd usbtest cdc_ether usbnet vfat fat usb_storage nfsd lockd nfs_acl auth_rpcgss exportfs mii tun videodev v4l1_compat v4l2_compat_ioctl32 fuse bridge stp llc sunrpc ipv6 cpufreq_ondemand acpi_cpufreq freq_table mperf kvm_intel kvm arc4 ecb ath5k usbhid mac80211 snd_hda_codec_conexant ch341 usbserial ath cfg80211 thinkpad_acpi snd_hda_intel pcspkr wmi hwmon yenta_socket iTCO_wdt iTCO_vendor_support i2c_i801 e1000e snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore snd_page_alloc pata_acpi uhci_hcd ohci_hcd usbcore i915 drm_kms_helper drm i2c_algo_bit i2c_core video output [last unloaded: uvcvideo]
[30753.755998] Pid: 0, comm: swapper Tainted: G        W   2.6.35-rc6-gkh-wl+ #49
[30753.755998] Call Trace:
[30753.755998]  <IRQ>  [<ffffffff8104478a>] warn_slowpath_common+0x80/0x98
[30753.755998]  [<ffffffff810447b7>] warn_slowpath_null+0x15/0x17
[30753.755998]  [<ffffffffa00ce02d>] hcd_buffer_free+0xb1/0xd4 [usbcore]
[30753.755998]  [<ffffffffa00c1345>] usb_free_coherent+0x1c/0x1e [usbcore]
[30753.755998]  [<ffffffffa00b13e4>] simple_free_urb+0x23/0x2f [usbtest]
[30753.755998]  [<ffffffffa00b210b>] iso_callback+0xbb/0x10f [usbtest]
[30753.755998]  [<ffffffffa00c7390>] usb_hcd_giveback_urb+0x8c/0xc0 [usbcore]
[30753.755998]  [<ffffffffa0449b35>] ehci_urb_done+0x84/0x95 [ehci_hcd]
[30753.755998]  [<ffffffffa044b5a5>] ehci_work+0x41a/0x7dd [ehci_hcd]
[30753.755998]  [<ffffffffa044e298>] ehci_irq+0x33b/0x370 [ehci_hcd]
[30753.755998]  [<ffffffff8100fb05>] ? sched_clock+0x9/0xd
[30753.755998]  [<ffffffff8105e641>] ? sched_clock_local+0x1c/0x82
[30753.755998]  [<ffffffff8105e76a>] ? sched_clock_cpu+0xc3/0xce
[30753.755998]  [<ffffffff81067c7e>] ? trace_hardirqs_off+0xd/0xf
[30753.755998]  [<ffffffff8105e7b8>] ? cpu_clock+0x43/0x5e
[30753.755998]  [<ffffffffa00c6999>] usb_hcd_irq+0x45/0xa1 [usbcore]
[30753.755998]  [<ffffffff81092e02>] handle_IRQ_event+0x20/0xa5
[30753.755998]  [<ffffffff81094cea>] handle_fasteoi_irq+0x92/0xd2
[30753.755998]  [<ffffffff8100c0ed>] handle_irq+0x1f/0x2a
[30753.755998]  [<ffffffff8100b75d>] do_IRQ+0x57/0xbe
[30753.755998]  [<ffffffff8136a693>] ret_from_intr+0x0/0x16
[30753.755998]  <EOI>  [<ffffffff81223baa>] ? acpi_idle_enter_bm+0x231/0x269
[30753.755998]  [<ffffffff81223ba3>] ? acpi_idle_enter_bm+0x22a/0x269
[30753.755998]  [<ffffffff812c4b6b>] cpuidle_idle_call+0x99/0xce
[30753.755998]  [<ffffffff81008dd5>] cpu_idle+0x61/0xaa
[30753.755998]  [<ffffffff8136374b>] start_secondary+0x1c2/0x1c6
[30753.755998] ---[ end trace 904cfaf7ab4cb1a2 ]---

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:45 -07:00
Sarah Sharp
006d5820b4 USB: xhci: Set DMA mask for host.
Tell the USB core that we can do DMA directly (instead of needing it to
memory-map the buffers for PIO).  If the xHCI host supports 64-bit addresses,
set the DMA mask accordingly.  Otherwise indicate the host can handle 32-bit DMA
addresses.

This improves performance because the USB core doesn't have to spend time
remapping buffers in high memory into the 32-bit address range.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:45 -07:00
Sarah Sharp
ed3f245392 USB: xhci: Don't flush doorbell writes.
To tell the host controller that there are transfers on the endpoint
rings, we need to ring the endpoint doorbell.  This is a PCI MMIO write,
which can be delayed until another register read is queued.

The previous code would flush the doorbell write by reading the doorbell
register after the write.  This may take time, and it's not necessary to
force the host controller to know about the transfers right away.  Don't
flush the doorbell register writes.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:45 -07:00
Sarah Sharp
c21599a361 USB: xhci: Reduce reads and writes of interrupter registers.
The interrupter register set includes a register that says whether interrupts
are pending for each event ring (the IP bit).  Each MSI-X vector will get its
own interrupter set with separate IP bits.  The status register includes an
"Event Interrupt (EINT)" bit that is set when an IP bit is set in any of the
interrupters.

When PCI interrupts are used, the EINT bit exactly mirrors the IP bit in the
single interrupter set, and it is a waste of time to check both registers when
trying to figure out if the xHC interrupted or another device on the shared IRQ
line interrupted.  Only check the IP bit to reduce register reads.

The IP bit is automatically cleared by the xHC when MSI or MSI-X is enabled.  It
doesn't make sense to read that register to check for shared interrupts (since
MSI and MSI-X aren't shared).  It also doesn't make sense to write to that
register to clear the IP bit, since it is cleared by the hardware.

We can tell whether MSI or MSI-X is enabled by looking at the irq number in
hcd->irq.  If it's -1, we know MSI or MSI-X is enabled.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:45 -07:00
Sarah Sharp
257d585aae USB: xhci: Make xhci_set_hc_event_deq() static.
Now that the event handler functions no longer use xhci_set_hc_event_deq()
to update the event ring dequeue pointer, that function is not used by
anything in xhci-ring.c.  Move that function into xhci-mem.c and make it
static.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:44 -07:00
Sarah Sharp
c06d68b814 USB: xhci: Minimize HW event ring dequeue pointer writes.
The xHCI specification suggests that writing the hardware event ring dequeue
pointer register too often can be an expensive operation for the xHCI hardware
to manage.  It suggests minimizing the number of writes to that register.

Originally, the driver wrote the event ring dequeue pointer after each
event was processed.  Depending on how the event ring moderation register
is set up and how fast the transfers are completing, there may be several
events processed for each interrupt.  This patch makes the hardware event
ring dequeue pointer be written only once per interrupt.

Make the transfer event handler and port status event handler only write
the software event ring dequeue pointer.  Move the updating of the
hardware event ring dequeue pointer into the interrupt function.  Move the
contents of xhci_set_hc_event_deq() into the interrupt handler.  The
interrupt handler must clear the event handler busy flag, so it might as
well also write the dequeue pointer to the same register.  This eliminates
two 32-bit PCI reads and two 32-bit PCI writes.

Reported-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:44 -07:00
Sarah Sharp
d6d98a4d8d USB: xhci: Make xhci_handle_event() static.
xhci_handle_event() is now only called from within xhci-ring.c, so make it
static.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:44 -07:00
Sarah Sharp
27e0dd4d7c USB: xhci: Remove unnecessary reads of IRQ_PENDING register.
Remove a duplicate register read of the interrupt pending register from
xhci_irq().  Also, remove waiting on the posted write of that register.
The host will see it eventually.  It will probably read the register
itself before deciding whether to interrupt the system again, forcing the
posted write to complete.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:44 -07:00
Sarah Sharp
bda531452c USB: xhci: Performance - move xhci_work() into xhci_irq()
When we move xhci_work() into xhci_irq(), we don't need to read the operational
register status field twice.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:44 -07:00
Sarah Sharp
9032cd5279 USB: xhci: Performance - move interrupt handlers into xhci-ring.c
Most of the work for interrupt handling is done in xhci-ring.c, so it makes
sense to move the functions that are first called when an interrupt happens
(xhci_irq() or xhci_msi_irq()) into xhci-ring.c, so that the compiler can better
optimize them.

Shorten some lines to make it pass checkpatch.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:44 -07:00
Sarah Sharp
021bff9179 USB: xhci: Performance - move functions that find ep ring.
I've been using perf to measure the top symbols while transferring 1GB of data
on a USB 3.0 drive with dd.  This is using the raw disk with /dev/sdb, with a
block size of 1K.

During performance testing, the top symbol was xhci_triad_to_transfer_ring(), a
function that should return immediately if streams are not enabled for an
endpoint.  It turned out that the functions to find the endpoint ring was
defined in xhci-mem.c and used in xhci-ring.c and xhci-hcd.c.  I moved a copy of
xhci_triad_to_transfer_ring() and xhci_urb_to_transfer_ring() into xhci-ring.c
and declared them static.  I also made a static version of
xhci_urb_to_transfer_ring() in xhci.c.

This improved throughput on a 1GB read of the raw disk with dd from
186MB/s to 195MB/s, and perf reported sampling the xhci_triad_to_transfer_ring()
0.06% of the time, rather than 9.26% of the time.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:44 -07:00
Bill Pemberton
52af954599 USB: add USB serial ssu100 driver
Add support for the Quatech SSU-100 single port usb to serial device.
This driver is based on the ftdi_sio.c driver and the original
serqt_usb driver from Quatech.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:44 -07:00
Alan Stern
f283925fe9 USB: usb-storage: implement autosuspend
This patch (as1400) adds runtime-PM support to usb-storage.  It
utilizes the SCSI layer's runtime-PM implementation, so its scope is
limited.  Currently the only effect is that disk-like devices (such as
card readers or flash drives) will be autosuspended if they aren't
mounted and their device files aren't open.  This would apply, for
example, to card readers that don't contain a memory card.

Unfortunately this won't interact very well with the removable-media
polling normally carried out by hal or DeviceKit.  Maybe those
programs can be changed to use a longer polling interval, or maybe the
default autosuspend time for usb-storage should be set to something
below 1 second.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: James Bottomley <James.Bottomley@suse.de>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:44 -07:00
Ming Lei
185c9bcfde USB: ehci: fix remove of ehci debugfs dir
The patch below on gregkh tree only creates 'lpm' file under
ehci->debug_dir, but not removes it when unloading module,

	 USB: EHCI: EHCI 1.1 addendum: preparation

which can make loading of ehci-hcd module failed after unloading it.

This patch replaces debugfs_remove with debugfs_remove_recursive
to remove ehci debugfs dir and files. It does fix the bug above,
and may simplify the removing procedure.

Also, remove the debug_registers, debug_async and debug_periodic
field from ehci_hcd struct since they are useless now.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:44 -07:00
Hauke Mehrtens
f2402f21ca USB: Add USB 2.0 to ssb ohci driver
This adds USB 2.0 support to ssb ohci driver.
This patch was used in OpenWRT for a long time now.

CC: Steve Brown <sbrown@cortland.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:44 -07:00
Alessio Igor Bogani
356c5a4834 USB: cp210x: Add four new device IDs
Signed-off-by: Alessio Igor Bogani <abogani@texware.it>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:43 -07:00
dranch@trinnet.net
b6180ef7c9 USB: ftdi_sio: device id for Navitator
This patch is to add a US Interface, Inc. "Navigator" USB device.
Specifically, it's a HAM Radio USB sound modem that also
incorporates three pairs of unique FTDI serial ports.  The standard
Linux FTDI serial driver will only recognize the first two serial
ports of an unknown FDTI derived device and this patch adds in
recognition to these specific new IDs.

Signed-off-by: David A. Ranch <dranch@trinnet.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:43 -07:00
Alan Stern
c4e0b508bc USB: accept RNDIS configs if there's no alternative
This patch (as1410) makes a slight change to the strategy used for
choosing a default configuration.  Currently we skip configs whose
first interface is RNDIS, if the kernel wasn't built with the
corresponding driver.  This risks losing access to the other
interfaces in those configs.  In addition, if there is only one config
then we will end up not configuring the device at all.

This changes the logic; now such configurations will be skipped only
if there is at least one other config.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Adam Kropelin <akropel1@rochester.rr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:43 -07:00
Andrew Bird
0372a754be USB: option: add huawei k3765 k4505 devices to work properly
This patch adds the product IDs of Huawei's K3765 and K4505 mobile
broadband usb modems to option.c. It also adds a quirk to the option
probe function so that binding to the device's network interface(class
0xff) is avoided. This is necessary to allow another driver to bind to
that, and to avoid programs like wvdial opening a nonfunctioning tty
during modem discovery.

Signed-off-by: Andrew Bird <ajb@spheresystems.co.uk>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:43 -07:00
Michal Nazarewicz
567064916e USB: gadget: file_storage: serial parameter even if not test mode
Moved the serial parameter handling code out of "#ifdef
CONFIG_USB_FILE_STORAGE_TEST".

This modifies Yann Cantin's commit "USB: Add a serial number
parameter to g_file_storage" module as per Alan Stern's request.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Anand Gadiyar <gadiyar@ti.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Yann Cantin <yann.cantin@laposte.net>
2010-08-10 14:35:43 -07:00
Kulikov Vasiliy
9a4b7c3b14 usb: imx21-hcd: set task state with schedule_timeout_uninterruptible()
imx21_hc_reset() uses schedule_timeout() without setting state to
STATE_(UN)INTERRUPTIBLE. As it is called in cycle without checking of
pending signals, use schedule_timeout_uninterruptible().

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:43 -07:00
John G. Rogers
afad19648f USB: serial: enabling support for Segway RMP in ftdi_sio
I have added the ProductID=0xe729 VendorID=FTDI_VID=0x0403 which will
enable support for the Segway Robotic Mobility Platform (RMP200) in the
ftdi_sio kernel module.  Currently, users of the Segway RMP200 must use
a RUN+="/sbin/modprobe -q ftdi-sio product=0xe729 vendor=0x0403 in a
udev rule to get the ftdi_sio module to handle the usb interface and
mount it on /dev/ttyXXX.  This is not a good solution because some users
will have multiple USB to Serial converters which will use the ftdi_sio
module.

Signed-off-by: John Rogers <jgrogers@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:43 -07:00
Marek Szyprowski
31ee04de7e USB: s3c-hsotg: add support for clock gating
This patch adds support for clock gating of the HS/OTG block. On S5PV210
otg gating clock is initally disabled so the driver needs to get and
enable it before it can access its registers.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:43 -07:00
Marek Szyprowski
1eb838d3e2 USB: s3c-hsotg: modify only selected bits in S3C_PHYPWR register
S5PV210 SoCs has 2 USB PHY interfaces, both enabled by writing zero to
S3C_PHYPWR register. HS/OTG driver uses only PHY0, so do not touch bits
related to PHY1.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:43 -07:00
Marek Szyprowski
4d47166c97 USB: s3c-hsotg: fix compilation problem
drivers/usb/gadget/s3c-hsotg.c: In function ‘s3c_hsotg_otgreset’:
drivers/usb/gadget/s3c-hsotg.c:2816: error: ‘MHZ’ undeclared (first use in this function)
drivers/usb/gadget/s3c-hsotg.c:2816: error: (Each undeclared identifier is reported only once
drivers/usb/gadget/s3c-hsotg.c:2816: error: for each function it appears in.)

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:43 -07:00
Maurus Cuelenaere
e50bf385bf USB: s3c-hsotg: Add support for external USB clock
The PLL that drives the USB clock supports 3 input clocks: 12, 24 and 48Mhz.
This patch adds support to the USB driver for setting the correct register bit
according to the given clock.

This depends on the following patch:
[PATCH] ARM: S3C64XX: Add USB external clock definition

Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:43 -07:00
Ben Dooks
a33e7136e9 USB: s3c-hsotg: Fix OUT packet request retry
If there is more data in the request than we could fit into a single
hardware request, then check when the OutDone event is received if
we have more data, and if so, schedule the new data instead of trying
to complete the request (and in the case of EP0, sending a 0 packet
in the middle of a transfer).

Also, move the debug message about the current transfer state before
the warning about a bad transfer.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:43 -07:00
Ben Dooks
b05ca580c3 USB: s3c-hsotg: Fix the OUT EP0 limit
The EP0 out limit is the same as the IN limit, so make them the same.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:43 -07:00
Ben Dooks
6cd68de741 USB: s3c-hsotg: Fix max EP0 IN request length
The maximum length for any EP0 IN request on EP0 is 127 bytes, not 128
as the driver currently has it.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:42 -07:00
Ben Dooks
c9a64ea884 USB: s3c-hsotg: Check for new request before enqueing new setup
Before trying a new setup transaction after getting an EP0 in complete
interrupt, check that the driver did not try and send more EP0 IN data
before enqueing a new setup transaction.

This fixes a bug where we cannot send all of the IN data in one go
so split the transfer, but then fail to send all the data as we start
waiting for a new OUT transaction

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:42 -07:00
Ben Dooks
03e10e5ab5 USB: s3c-hsotg: Only load packet per fifo write
Limit the IN FIFO write to a single packet per attempt at writing,
as per the specifications and ensure that we don't return fifo-full
so that we can continue writing packets if we have the space.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:42 -07:00
Ben Dooks
10aebc772a USB: s3c-hsotg: Add initial detection and setup for dedicated FIFO mode
Add support for the dedicated FIFO mode on newer SoCs such as the S5PV210
partly to improve support and to fix the bug where any non-EP0 IN endpoint
requires its own FIFO allocation.

To fix this, we ensure that any non-zero IN endpoint is given a TXFIFO
using the same allocation method as the periodic case (all our current
hardware has enough FIFOs and FIFO memory for a 1:1 mapping) and ensure
that the necessary transmission done interrupt is enabled.

The default settings from reset for the core point all EPs at FIFO0,
used for the control endpoint. However, the controller documentation
states that all IN endpoints _must_ have a unique FIFO to avoid any
contention during transmission.

Note, this leaves us with a large IN FIFO for EP0 (which re-uses the
old NPTXFIFO) for an endpoint which cannot shift more than a pair of
packets at a time... this is a waste, but it looks like we cannot
re-allocate space to the individual IN FIFOs as they are already
maxed out (to be confirmed).

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:42 -07:00
Ben Dooks
b3864cedfb USB: s3c-hsotg: Re-initialise all FIFOs on USB bus reset
The USB documentation suggest that the FIFOs should be reset when a
bus reset event happens. Use the s3c_hsotg_init_fifo() to ensure that
the FIFO layout is correct and that the FIFOs are flushed before
acknowledging the reset.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:42 -07:00
Ben Dooks
e7a9ff5427 USB: s3c-hsotg: Avoid overwriting contents of perodic in 'fifo'
In shared fifo mode (used on older SoCs) the periodic in fifo beahves
much more like a packet buffer, discarding old data when writing new
data. Avoid this by ensuring that we do not load new transactions in
when there is data sitting already in the FIFO.

Note, this may not be an observed bug, we are fixing the case that this
may happen.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:42 -07:00
Ben Dooks
679f9b7c7c USB: s3c-hsotg: The NPTX/PTX FIFO sizes are in words, not bytes
Fix a problem where we have been underestimating the space available in
the IN PTX/NPTX FIFOs by assuming that they where simply word aligned
instead of in number-of-words. This means all length calculations need
to be multiplied-by-4.

Note, we do not change the information about fifo size or start addresses
available to userspace as we assume the user can multiply by four easily
and is already knows these values are in words.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:42 -07:00
Ben Dooks
6d091ee761 USB: s3c-hsotg: Increase TX fifo limit
Up the FIFO size for the TX to 1024 entries, as this now seems to work
with all the cores. This fixes a problem when using large packets on
a core with MPS set to 512 can hang due to insufficient space for the
writes.

The hang arises due to getting the non-periodic FIFO empty IRQ but
not being able to satisfy any requests since there is never enough
space to write 512 bytes into the buffer. This means we end up with
a stream of interrupt requests.

It is easier to up the TX FIFO to fill the space we left for it
than to try and fix the positions in the code where we should have
limited the max-packet size to < TXFIFOSIZE, since the TXFIFOSIZE
depends on how the TX FIFOs have been setup.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:42 -07:00
Kulikov Vasiliy
76be932af1 usb: host: sl811-hcd: check kzalloc() result
If kzalloc() fails exit with -ENOMEM.

Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:42 -07:00
Andy Shevchenko
a93917d39f USB: gadget: storage: optional SCSI WRITE FUA bit
MS Windows mounts removable storage in "Removal optimized mode" by
default. All the writes to the media are synchronous which is achieved
by setting FUA (Force Unit Access) bit in SCSI WRITE(10,12) commands.
This prevents I/O requests aggregation in block layer dramatically
decreasing performance.

This patch brings an option to accept or ignore mentioned bit
 a) via specifying module parameter "nofua", or
 b) through sysfs entry
	/sys/devices/platform/_UDC_/gadget/gadget-lunX/nofua
	(_UDC_ is the name of the USB Device Controller driver)

Patch is based on the work that was done by Denis Karpov for Maemo 5
platform.

Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Denis Karpov <ext-denis.2.karpov@nokia.com>
Cc: Adrian Hunter <adrian.hunter@nokia.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:42 -07:00
Andy Shevchenko
8156d158ef usb: gadget: storage: strict coversion of 'ro' parameter
Bring a strict way to get the 'ro' parameter from the user.

The patch followed by this one adds another boolean parameter. To be consistent
Michał Nazarewicz proposed to use simple_strtol() in both cases (correspondend
discussion in LKML [1]). Due to simple_strtol() doesn't return error in a good
way and we have a boolean parameter the strict_strtoul() is used.

[1] http://lkml.org/lkml/2010/7/14/169

Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:42 -07:00
Andiry Xu
787f4e5ada USB: xHCI: Isoc urb enqueue
Enable isochronous urb enqueue.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:42 -07:00
Andiry Xu
a061a5a0b8 USB: xHCI: allocate bigger ring for isochronous endpoint
Isochronous endpoint needs a bigger size of transfer ring. Isochronous URB
consists of multiple packets, each packet needs a isoc td to carry, and
there will be multiple trbs inserted to the ring at one time. One segment
is too small for isochronous endpoints, and it will result in
room_on_ring() check failure and the URB is failed to enqueue.

Allocate bigger ring for isochronous endpoint. 8 segments should be enough.
This will be replaced with dynamic ring expansion in the future.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:41 -07:00
Andiry Xu
04e51901dd USB: xHCI: Isochronous transfer implementation
This patch implements isochronous urb enqueue and interrupt handler part.

When an isochronous urb is passed to xHCI driver, first check the transfer
ring to guarantee there is enough room for the whole urb. Then update the
start_frame and interval field of the urb. Always assume URB_ISO_ASAP
is set, and never use urb->start_frame as input.

The number of isoc TDs is equal to urb->number_of_packets. One isoc TD is
consumed every Interval. Each isoc TD consists of an Isoch TRB chained to
zero or more Normal TRBs.

Call prepare_transfer for each TD to do initialization; then calculate the
number of TRBs needed for each TD. If the data required by an isoc TD is
physically contiguous (not crosses a page boundary), then only one isoc TRB
is needed; otherwise one or more additional normal TRB shall be chained to
the isoc TRB by the host.

Set TRB_IOC to the last TRB of each isoc TD. Do not ring endpoint doorbell
to start xHC procession until all the TDs are inserted to the endpoint
transer ring.

In irq handler, update urb status and actual_length, increase
urb_priv->td_cnt. When all the TDs are completed(td_cnt is equal to
urb_priv->length), giveback the urb to usbcore.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:41 -07:00
Andiry Xu
8e51adccd4 USB: xHCI: Introduce urb_priv structure
Add urb_priv data structure to xHCI driver. This structure allows multiple
xhci TDs to be linked to one urb, which is essential for isochronous
transfer. For non-isochronous urb, only one TD is needed for one urb;
for isochronous urb, the TD number for the urb is equal to
urb->number_of_packets.

The length field of urb_priv indicates the number of TDs in the urb.
The td_cnt field indicates the number of TDs already processed by xHC.
When td_cnt matches length, the urb can be given back to usbcore.

When an urb is dequeued or cancelled, add all the unprocessed TDs to the
endpoint's cancelled_td_list. When process a cancelled TD, increase
td_cnt field. When td_cnt equals urb_priv->length, giveback the
cancelled urb.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:41 -07:00
Andiry Xu
d18240db79 USB: xHCI: Missed Service Error Event process
This patch adds mechanism to process Missed Service Error Event.
Sometimes the xHC is unable to process the isoc TDs in time, it will
generate Missed Service Error Event. In this case some TDs on the ring are
not processed and missed. When encounter a Missed Servce Error Event, set
the skip flag of the ep, and process the missed TDs until reach the next
processed TD, then clear the skip flag.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:41 -07:00
Andiry Xu
986a92d448 USB: xHCI: adds new cases to trb_comp_code switch
This patch adds new cases to trb_comp_code switch, and moves
the switch judgment ahead of fetching td.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:41 -07:00
Andiry Xu
7fec3253ed USB: xHCI: remove redundant print messages
Remove redundant print messages in the interrupt context.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:41 -07:00
Andiry Xu
22405ed2e1 USB xHCI: handle_tx_event() refactor: process_bulk_intr_td
This patch moves the bulk and interrupt td processing part in
handle_tx_event() into a separate function process_bulk_intr_td().

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:41 -07:00
Andiry Xu
8af56be185 USB: xHCI: handle_tx_event() refactor: process_ctrl_td
This patch moves the ctrl td processing part in handle_tx_event()
into a separate function process_ctrl_td().

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:41 -07:00
Andiry Xu
4422da6155 USB: xHCI: handle_tx_event() refactor: finish_td
This patch moves the td universal processing part in handle_tx_event()
into a separate function finish_td().

if finish_td() returns 1, it indicates the urb can be given back.

Signed-off-by: Andiry Xu <andiry.xu@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:41 -07:00
Pavel Kazlou
b972302b0a USB: option: Huawei ETS 1220 support added
The patch adds Huawei ETS 1220 product id into the list of supported
devices in 'option' usb serial driver.

Signed-off-by: Pavel Kazlou <p.i.kazlou@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:41 -07:00
Phil Dibowitz
93362a875f USB delay init quirk for logitech Harmony 700-series devices
The Logitech Harmony 700 series needs an extra delay during
initialization.  This patch adds a USB quirk which enables such a delay
and adds the device to the quirks list.

Signed-off-by: Phil Dibowitz <phil@ipom.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:41 -07:00
Steven Robertson
33d973ad88 USB: resizing usbmon binary interface buffer causes protection faults
Enlarging the buffer size via the MON_IOCT_RING_SIZE ioctl causes
general protection faults. It appears the culprit is an incorrect
argument to mon_free_buff: instead of passing the size of the current
buffer being freed, the size of the new buffer is passed.

Use the correct size argument to mon_free_buff when changing the size of
the buffer.

Signed-off-by: Steven Robertson <steven@strobe.cc>
Acked-by: Pete Zaitcev <zaitcev@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:41 -07:00
Michal Nazarewicz
92eb2a5e53 USB: gadget: functionfs: stale Makefile entry removed
Removed entry referencing g_eth_ffs.c file from Makefile.
The file never existed and the line was a leftover from a
developing process.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:40 -07:00
Alan Stern
88d8aa462b USB: EHCI: remove dead code in the periodic scheduler
This patch (as1409) removes some dead code from the ehci-hcd
scheduler.  Thanks to the previous patch in this series, stream->depth
is no longer used.  And stream->start and stream->rescheduled
apparently have not been used for quite a while, except in some
statistics-reporting code that never gets invoked.

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>
2010-08-10 14:35:40 -07:00
Alan Stern
1fb2e05587 USB: EHCI: reorganize isochronous scheduler routine
This patch (as1408) rearranges the scheduling code in ehci-hcd, partly
to improve its structure, but mainly to change the way it works.
Whether or not a transfer exceeds the hardware schedule length will
now be determined by looking at the last frame the transfer would use,
instead of the first available frame following the end of the transfer.

The benefit of this change is that it allows the driver to accept
valid URBs which would otherwise be rejected.  For example, suppose
the schedule length is 1024 frames, the endpoint period is 256 frames,
and a four-packet URB is submitted.  The four transfers would occupy
slots that are 0, 256, 512, and 768 frames past the current frame
(plus an extra slop factor).  These don't exceed the 1024-frame limit,
so the URB should be accepted.  But the current code notices that the
next available slot would be 1024 frames (plus slop) in the future,
which is beyond the limit, and so the URB is rejected unnecessarily.

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>
2010-08-10 14:35:40 -07:00
Alan Stern
ffda080353 USB: EHCI: add missing frame -> microframe conversion
This patch (as1407) fixes a bug in ehci-hcd's isochronous scheduler.
All its calculations should be done in terms of microframes, but for
full-speed devices, sched->span is stored in frames.  It needs to be
converted.

This fix is liable to expose problems in other drivers.  The old code
would accept URBs that should not have been accepted, so drivers have
had no reason to avoid submitting URBs that exceeded the maximum
schedule length.  In an attempt to partially compensate for this, the
patch also adjusts the schedule length from a minimum of 256 frames up
to a minimum of 512 frames.

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>
2010-08-10 14:35:40 -07:00
Alan Stern
bccbefaae0 USB: EHCI: simplify remainder computations
This patch (as1406) adds a micro-optimization to ehci-hcd's scheduling
code.  Instead of computing remainders with respect to the schedule
length, use bitwise-and (which is quicker).  We know that the schedule
length will always be a power of two, but the compiler doesn't have
this information.

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>
2010-08-10 14:35:40 -07:00
Alan Stern
ae68a83bdc USB: EHCI: remove PCI assumption
This patch (as1405) fixes a small bug in ehci-hcd's isochronous
scheduler.  Not all EHCI controllers are PCI, and the code shouldn't
assume that they are.  Instead, introduce a special flag for
controllers which need to delay iso scheduling for full-speed devices
beyond the scheduling threshold.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Sarah Sharp <sarah.a.sharp@linux.intel.com>
CC: David Brownell <david-b@pacbell.net>
CC: stable <stable@kernel.org>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
2010-08-10 14:35:40 -07:00
Dong Nguyen
43b86af83d USB: xHCI: Supporting MSI/MSI-X
Enable MSI/MSI-X supporting in xhci driver.

Provide the mechanism to fall back using MSI and Legacy IRQs
if MSI-X IRQs register failed.

Signed-off-by: Dong Nguyen <Dong.Nguyen@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>,
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:40 -07:00
Igor Grinberg
13dd0c9767 USB: otg/ulpi: extend the generic ulpi driver.
1) Introduce ulpi specific flags for control of the ulpi phy
2) Extend the generic ulpi driver with support for Function and
Interface control of upli phy
3) Update the platforms using the generic ulpi driver with new ulpi
flags
4) Remove the otg control flags not in use

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:40 -07:00
Igor Grinberg
51a91a5424 USB: otg/ulpi: add support for SMSC USB3319 ulpi phy
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:40 -07:00
Igor Grinberg
6a5a9a4b17 USB: otg/ulpi: remove unused macro
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:40 -07:00
Eric Bénard
fa345d0109 USB: otg/ulpi.c : fix register write
ulpi_set_vbus and ulpi_set_flags are using ULPI_SET(register) to write
to the PHY's registers, which means we can only set bits in the PHY's
register and not clear them.
By directly using the address of the register without any offset, we
now get the expected behaviour for these functions.

Signed-off-by: Eric Bénard <eric@eukrea.com>
Cc: Daniel Mack <daniel@caiaq.de>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Sascha Hauer <kernel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:40 -07:00
Roel Kluin
9800eb330d USB: io_ti.c: don't return 0 if writing the download record failed
If the write download record failed we shouldn't return 0.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:40 -07:00
Christian Dietrich
10d0ca0242 USB: host: Remove dead CONFIG_ARCH_KARO
CONFIG_ARCH_KARO doesn't exist in Kconfig and is never defined anywhere
else, therefore removing all references for it from the source code.

Signed-off-by: Christian Dietrich <qy03fugy@stud.informatik.uni-erlangen.de>
Acked-by: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:40 -07:00
Ming Lei
a7a6b79bc5 USB: serial: enable async suspend for usb serial port device
Usb serial port device is child of its usb interface device, so
we can enable async suspend of usb serial port device to speedup
system suspend.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:39 -07:00
stephane duverger
d0390d92bf USB: musb: forward debug mode feature to gadget
This is a patch for the musb usb controller.

It allows forwarding of the debug mode feature to its gadget in order
to be able to act as an ehci debug device.

This patch has been tested on an IGEPv2 board running a 2.6.35-rc1
kernel.

Signed-off-by: Stephane Duverger <stephane.duverger@gmail.com>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-10 14:35:39 -07:00