9 years agoUSB: cp210x: Add 81E8 (Zephyr Bioharness)
Alan Cox [Mon, 8 Feb 2010 10:10:44 +0000]
USB: cp210x: Add 81E8 (Zephyr Bioharness)

As reported in
http://bugzilla.kernel.org/show_bug.cgi?id=10980

Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: Extend and neaten dbg macros
Joe Perches [Sat, 6 Feb 2010 02:09:49 +0000]
USB: Extend and neaten dbg macros

Add format/argument validation for #ifndef DEBUG dbg macro
Neaten dbg macro definitions

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: Convert concatenated __FILE__ to %s, __FILE__
Joe Perches [Sat, 6 Feb 2010 01:51:13 +0000]
USB: Convert concatenated __FILE__ to %s, __FILE__

Reduces string space a bit
Neaten a macro redefine of dbg

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: serial: Remove unnecessary \n's from dbg uses
Joe Perches [Sat, 6 Feb 2010 00:50:08 +0000]
USB: serial: Remove unnecessary \n's from dbg uses

#define dbg adds the newline, messages shouldn't.
Converted dbg("%s", "some string") to dbg("some string")

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: ehci-dbgp: split PID register updates for IN and OUT pipes
Jason Wessel [Fri, 5 Feb 2010 17:49:05 +0000]
USB: ehci-dbgp: split PID register updates for IN and OUT pipes

This patch addresses two problems:

1) Bulk reads should always use the DATA0 for the pid, and the write
   PID should toggle between DATA0 and DATA1.  The fix is using
   dbgp_pid_write_update() and dbgp_pid_read_update().

2) The delay loop for waiting for a transaction was not long enough to
   always complete the initial handshake inside dbgp_wait_until_done().
   After the initial handshake the maximum delay length is never reached.

The combined result of these two changes allows for the removal of the
forced resynchronization where a bulk write was issued with a dummy
data payload only to get the device to start accepting data writes
again.

CC: Eric Biederman <ebiederm@xmission.com>
CC: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: serial: Add support for ViVOtech ViVOpay devices.
Forest Bond [Fri, 5 Feb 2010 16:30:28 +0000]
USB: serial: Add support for ViVOtech ViVOpay devices.

Add support for USB serial interface provided by ViVOtech ViVOpay devices via
new driver vivopay-serial.  Currently only the ViVOpay 8800 device is supported,
but support for similar devices can be added by adding the appropriate device
IDs to the driver.

Signed-off-by: Forest Bond <forest.bond@outpostembedded.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: atmel uaba: Adding invert vbus_pin
Eirik Aanonsen [Fri, 5 Feb 2010 08:49:25 +0000]
USB: atmel uaba: Adding invert vbus_pin

Adding vbus_pin_inverted so that the usb detect pin can be active high
or low depending on HW implementation also replaced the
gpio_get_value(udc->vbus_pin); with a call to vbus_is_present(udc); This
allows the driver to be loaded and save about 0,15W on the consumption.

Signed-off-by: Eirik Aanonsen <eaa@wprmedical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: Remove unsupported usb gadget drivers
Christoph Egger [Fri, 5 Feb 2010 12:24:12 +0000]
USB: Remove unsupported usb gadget drivers

A bunch of USB gadget drivers where never ported from the linux 2.4
series to 2.6 kernels. However there's some code still in the tree for
them which isn't used and is probably untested for ages.

As the chance of these drivers being forward ported is probably quite
small now it might be time to get rid of them.

Signed-off-by: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: f_mass_storage: fix crash on bind() error
Peter Korsgaard [Thu, 4 Feb 2010 16:15:25 +0000]
USB: f_mass_storage: fix crash on bind() error

init_completion() hasn't been called yet and the thread isn't created
if we end up here, so don't call complete() on thread_notifier.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: cdc-acm: fix possible deadlock with multiple openers
Oliver Neukum [Wed, 3 Feb 2010 16:10:22 +0000]
USB: cdc-acm: fix possible deadlock with multiple openers

The lock must be dropped before usb_autopm_interface_put() is called

Signed-off-by: Oliver Neukum <oliver@neukum.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: g_mass_storage: min(...) warning fixed
Michal Nazarewicz [Wed, 3 Feb 2010 10:37:17 +0000]
USB: g_mass_storage: min(...) warning fixed

This patch fixes warning caused by calling min() macro
with arguments of different types:

  drivers/usb/gadget/f_mass_storage.c:623: warning: \
  comparison of distinct pointer types lacks a cast

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Cc: Marek Szyprowski <m.nazarewicz@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: musb: test always evaluates to false
Roel Kluin [Tue, 2 Feb 2010 22:47:17 +0000]
USB: musb: test always evaluates to false

The removed part always evaluates to false.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

9 years agoUSB: isp1760: Flush the D-cache for the pipe-in transfer buffers
Catalin Marinas [Tue, 2 Feb 2010 15:31:02 +0000]
USB: isp1760: Flush the D-cache for the pipe-in transfer buffers

When the HDC driver writes the data to the transfer buffers it pollutes
the D-cache (unlike DMA drivers where the device writes the data). If
the corresponding pages get mapped into user space, there are no
additional cache flushing operations performed and this causes random
user space faults on architectures with separate I and D caches
(Harvard) or those with aliasing D-cache.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Matthew Dharm <mdharm-kernel@one-eyed-alien.net>
Cc: Greg KH <greg@kroah.com>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Cc: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: add new ftdi_sio device ids
Mitchell Solomon [Fri, 12 Feb 2010 18:23:18 +0000]
USB: add new ftdi_sio device ids

PID patch for my products

Signed-off-by: Mitchell Solomon <mitchjs@rush2112.net>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: ftdi_sio: Replace BKL with a mutex
Alessio Igor Bogani [Tue, 2 Feb 2010 15:18:28 +0000]
USB: ftdi_sio: Replace BKL with a mutex

As Alan Cox have pinpointed the driver still required protection against
parallels calls to the config ioctl(). If lock is still necessary the use of
BKL is abused here. So replace BKL with a more convenient mutex.

Signed-off-by: Alessio Igor Bogani <abogani@texware.it>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: Johan Hovold <jhovold@gmail.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Daniel Mack <daniel@caiaq.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agousb: gadgetfs: Convert semaphore to mutex
Thomas Gleixner [Fri, 29 Jan 2010 20:38:59 +0000]
usb: gadgetfs: Convert semaphore to mutex

The semaphore data->lock is semantically a mutex. Convert it to a real
mutex.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: g_mass_storage: superfluous and missing packets fixed
Michal Nazarewicz [Wed, 27 Jan 2010 10:14:28 +0000]
USB: g_mass_storage: superfluous and missing packets fixed

The mass storage function responded needlessly to a set
configuration packet.  This was a leftover from converting
gadget (file storage gadget) into a composite function.

Moreover, it has failed to respond to get max LUN request.
Adding request queueing made the function work better.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: mass_storage: eject LUNs on thread exit
Michal Nazarewicz [Thu, 28 Jan 2010 12:05:26 +0000]
USB: mass_storage: eject LUNs on thread exit

Adds a fallback which forces all LUNs ejection (including
non-removable and with prevent_medium_removal flag) when mass storage
function (MSF) worker thread exits and gadget fails to handle the
situation.

Previously, if thread_exits was not specified mass storage function
(MSF) did nothing when exiting thread as it's unclear for *function*
what to do when it's thread terminates so responsibility of handling
this situation was left to the *gadget* using the function.

The g_mass_storage handled the situation by unregistering itself (the
same thing that file storage gadget does).  However, g_multi did
nothing and so MSF did not eject LUNs which prevented file system
unmounting.

Signed-off-by: Michal Nazarewicz <m.nazarewicz@samsung.com>
Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: musb: disable double buffering for older RTL versions
Cliff Cai [Fri, 29 Jan 2010 01:44:18 +0000]
USB: musb: disable double buffering for older RTL versions

Trying to use double buffer modes in RTL versions <2.0 may result in
infinite hangs or data corruption.  So avoid them with older versions.

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: musb: set version of Blackfin version
Cliff Cai [Fri, 29 Jan 2010 01:43:44 +0000]
USB: musb: set version of Blackfin version

All current Blackfin parts are using RTL v1.9, but they don't expose the
hardware registers to probe this dynamically.  So hardcode the version to
v1.9 for now.

Need to move the local hwvers related defines higher up in the header so
that sub-musb headers may utilize them.

Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: pxa27x_udc: Fix deadlocks on request queueing
Robert Jarzmik [Wed, 27 Jan 2010 17:38:03 +0000]
USB: pxa27x_udc: Fix deadlocks on request queueing

As reported by Antonio, there are cases where the ep->lock
can be taken twice, triggering a deadlock.
The typical sequence is :
 irq_handler
   \
    -> gadget.complete()
       \
        -> pxa27x_udc.pxa_ep_queue() : ep->lock is taken
           \
            -> gadget.complete()
               \
                -> pxa27x_udc.pxa_ep_queue() : ep->lock is taken
                                               ==> *deadlock*
The patch fixes this by :
 - releasing the lock each time gadget.complete() is called
 - adding a check in handle_ep() to detect a recursive call,
   in which case the function becomes on no-op.

The patch is still not good enough for ep0. For this unique
endpoint, another well thought over patch will be needed.

Reported-by: Antonio Ospite <ospite@studenti.unina.it>
Tested-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: serial: add support for serial port on the moschip 7715
Mike Dunn [Tue, 26 Jan 2010 17:12:12 +0000]
USB: serial: add support for serial port on the moschip 7715

Add support for the serial port on devices based on the MosChip 7715,
which provides a serial and parallel port on a single usb interface.
This is added to the existing driver for the Moschip 7720 dual serial
port device.  The 7715 is very similiar to the 7720, requiring only the
addition of a calc_num_ports() function, a separate interrupt-in
endpoint callback, and some manipulation of the port pointers added to
the attach() function to correct the fact that the usbserial core
erroneously assigns the first bulk in/out endpoint pair to the serial
port (the 7715 uses these for its parallel port).  There is no support
for the 7715's parallel port yet.

Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: io_edgeport: eliminate get_string()
Dan Carpenter [Mon, 25 Jan 2010 11:53:33 +0000]
USB: io_edgeport: eliminate get_string()

Johan Hovold points out that get_string() is basically just a
re-implimentation of usb_string().  It is also buggy.  It does DMA on
the stack and it doesn't handle negative returns from
usb_get_descriptor().  Plus unicode_to_ascii() is a rubbish function and
moving to usb_string() avoids using it.

Let's eliminate get_string() entirely.

Reported-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: s3c-hsotg: replace deprecated dma_sync_single()
FUJITA Tomonori [Mon, 25 Jan 2010 02:07:19 +0000]
USB: s3c-hsotg: replace deprecated dma_sync_single()

This replaces deprecated dma_sync_single() with dma_sync_single_for_cpu().

There is no functional change because dma_sync_single() simply calls
dma_sync_single_for_cpu():

static inline void __deprecated dma_sync_single(struct device *dev,
                   dma_addr_t addr, size_t size,
enum dma_data_direction dir)
{
dma_sync_single_for_cpu(dev, addr, size, dir);
}

This fixes the following compile warnings:

drivers/usb/gadget/s3c-hsotg.c: In function 's3c_hsotg_unmap_dma':
drivers/usb/gadget/s3c-hsotg.c:376: warning: 'dma_sync_single' is deprecated (declared at /home/fujita/git/linux-2.6/include/linux/dma-mapping.h:109)
drivers/usb/gadget/s3c-hsotg.c: In function 's3c_hsotg_map_dma':
drivers/usb/gadget/s3c-hsotg.c:758: warning: 'dma_sync_single' is deprecated (declared at /home/fujita/git/linux-2.6/include/linux/dma-mapping.h:109)

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: musb: only print info message if probe() is successful
Felipe Balbi [Thu, 21 Jan 2010 13:33:58 +0000]
USB: musb: only print info message if probe() is successful

we were printing the info about musb probe too early where
it was still possible for things to go wrong. Move the
down right before the return 0 statement. While at that
also convert pr_info to dev_info.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: musb: unmap base if we can't probe
Felipe Balbi [Thu, 21 Jan 2010 13:33:57 +0000]
USB: musb: unmap base if we can't probe

when probe() fails, we should iounmap() the mapped address.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: musb: tusb6010: use resource_size
Felipe Balbi [Thu, 21 Jan 2010 13:33:56 +0000]
USB: musb: tusb6010: use resource_size

Trivial patch, no functional changes.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: musb: deprecate what we don't use
Felipe Balbi [Thu, 21 Jan 2010 13:33:55 +0000]
USB: musb: deprecate what we don't use

after 2.6.34, those fields will be removed from
struct musb_hdrc_platform_data, it's expected
that other architectures are fixed by then.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: musb: we already tested for dyn_fifo
Felipe Balbi [Thu, 21 Jan 2010 13:33:54 +0000]
USB: musb: we already tested for dyn_fifo

... and even added a flag to struct musb, so let's
use that.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: musb: get rid of omap_readl/writel
Felipe Balbi [Thu, 21 Jan 2010 13:33:53 +0000]
USB: musb: get rid of omap_readl/writel

we have those addresses already ioremaped, so let's
use our __raw_readl/writel wrappers.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agousb: musb: Add context save and restore support
Ajay Kumar Gupta [Thu, 21 Jan 2010 13:33:52 +0000]
usb: musb: Add context save and restore support

Adding support for MUSB register save and restore during system
suspend and resume.

Changes:
        - Added musb_save/restore_context() functions
        - Added platform specific musb_platform_save/restore_context()
          to handle platform specific jobs.
        - Maintaining BlackFin compatibility by adding read/write
          functions for registers which are not available in BlackFin

Tested system suspend and resume on OMAP3EVM board.

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: remove obsolete config in kernel source (USB_HCD_DMA)
Christoph Egger [Thu, 21 Jan 2010 13:58:47 +0000]
USB: remove obsolete config in kernel source (USB_HCD_DMA)

The configuration Option USB_HCD_DMA is not reachable in KConfig so
this piece of Code is effectively dead and useless. Remove it to avoid
confusion.

Signed-off-by: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: usbfs_snoop: add data logging back in
Chris Frey [Tue, 26 Jan 2010 22:07:29 +0000]
USB: usbfs_snoop: add data logging back in

Uses the new snoop function from commit 4c6e8971cbe0148085,
but includes the buffer data where appropriate, as before.

Signed-off-by: Chris Frey <cdfrey@foursquare.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: s3c-hsotg: Staticise non-exported functions
Mark Brown [Mon, 18 Jan 2010 13:18:35 +0000]
USB: s3c-hsotg: Staticise non-exported functions

Keeps sparse happy if nothing else.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: trivial: missing newline in usb core warning message
Thadeu Lima de Souza Cascardo [Sun, 17 Jan 2010 21:24:03 +0000]
USB: trivial: missing newline in usb core warning message

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: ftdi_sio: correct spelling in implementation file
Andreas Mohr [Sun, 17 Jan 2010 10:45:57 +0000]
USB: ftdi_sio: correct spelling in implementation file

- correct spelling
- correct non-tabbed .tiocmget/.tiocmset entries

Signed-off-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: ftdi_sio: correct spelling in header files
Andreas Mohr [Sun, 17 Jan 2010 10:45:47 +0000]
USB: ftdi_sio: correct spelling in header files

- correct spelling/whitespace in ftdi_sio.h and ftdi_sio_ids.h

Signed-off-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: serial: Eliminate useless code
Julia Lawall [Sat, 16 Jan 2010 15:59:51 +0000]
USB: serial: Eliminate useless code

The variables priv and portdata are initialized twice to the same (side
effect-free) expressions.  Drop one initialization in each case.

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

// <smpl>
@forall@
idexpression *x;
identifier f!=ERR_PTR;
@@

x = f(...)
... when != x
(
x = f(...,<+...x...+>,...)
|
* x = f(...)
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: gadget: Add DEVTYPE support for Ethernet functions
Marcel Holtmann [Sat, 16 Jan 2010 06:13:58 +0000]
USB: gadget: Add DEVTYPE support for Ethernet functions

The problem with Ethernet based networking devices is to clearly
identify what's their usage. Special interfaces like bridges, WiFi,
Bluetooth, WiMAX or WWAN are already using DEVTYPE identification.

This patch marks the Ethernet functions of gadgets from the device
type "gadget". Automatic setup of these interfaces can now happen
from userspace without the need of hardcoding the network interface
name.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: remove the berry_charge driver
Greg Kroah-Hartman [Thu, 21 Jan 2010 22:54:10 +0000]
USB: remove the berry_charge driver

The Barry project's userspace program, bcharge, can better handle this
device and functionality, and it also works with the latest phones,
which this driver does not support.  So remove it, as the userspace code
should be used instead.

Cc: Chris Frey <cdfrey@foursquare.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: BKL removal from ioctl path of usbfs
Oliver Neukum [Thu, 14 Jan 2010 15:23:56 +0000]
USB: BKL removal from ioctl path of usbfs

Total removal from the ioctl code path except for the outcall
to external modules. Locking is ensured by the normal locks
of usbfs.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: BKL removal: frontier
Oliver Neukum [Thu, 14 Jan 2010 15:13:46 +0000]
USB: BKL removal: frontier

BKL was not needed at all. Removed without replacement.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: BKL removal: vstusb
Oliver Neukum [Thu, 14 Jan 2010 15:13:24 +0000]
USB: BKL removal: vstusb

BKL was not needed at all. Removed without replacement.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: BKL removal: legousbtower
Oliver Neukum [Thu, 14 Jan 2010 15:12:53 +0000]
USB: BKL removal: legousbtower

BKL was not needed at all. Removed without replacement.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: BKL removal: ldusb
Oliver Neukum [Thu, 14 Jan 2010 15:12:27 +0000]
USB: BKL removal: ldusb

BKL was not needed at all. Removed without replacement.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: BKL removal: ftdi-elan
Oliver Neukum [Thu, 14 Jan 2010 15:12:01 +0000]
USB: BKL removal: ftdi-elan

BKL was not needed at all. Removed without replacement.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: BKL removal: adutux
Oliver Neukum [Thu, 14 Jan 2010 15:11:32 +0000]
USB: BKL removal: adutux

BKL was not needed at all. Removed without replacement.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: BKL removal: idmouse
Oliver Neukum [Thu, 14 Jan 2010 15:11:03 +0000]
USB: BKL removal: idmouse

BKL was not needed at all. Removed without replacement.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: BKL removal: rio500
Oliver Neukum [Thu, 14 Jan 2010 15:10:38 +0000]
USB: BKL removal: rio500

This driver had used BKL to guard against disconnect but
was incorrectly converted leaving an SMP race.
BKL was added to disconnect() to fix this race
BKL was removed from ioctl() as the mutex is sufficient
on its own.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: BKL removal: mdc800
Oliver Neukum [Thu, 14 Jan 2010 15:10:05 +0000]
USB: BKL removal: mdc800

BKL not needed at all. Removed without replacement.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: BKL removal: cdc-wdm
Oliver Neukum [Thu, 14 Jan 2010 15:09:26 +0000]
USB: BKL removal: cdc-wdm

BKL not needed at all. Removed without replacement.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: BKL removal: usbtmc
Oliver Neukum [Thu, 14 Jan 2010 15:08:42 +0000]
USB: BKL removal: usbtmc

BKL not needed at all. Removed without replacement.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: BKL removal: usb-skeleton
Oliver Neukum [Thu, 14 Jan 2010 15:08:13 +0000]
USB: BKL removal: usb-skeleton

BKL not needed at all. Removed without replacement.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agousb: BKL removal: usblp
Oliver Neukum [Thu, 14 Jan 2010 15:07:37 +0000]
usb: BKL removal: usblp

BKL was not needed at all. Removed without replacement.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Acked-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: isight-firmware: declare MODULE_FIRMWARE
Ben Hutchings [Wed, 13 Jan 2010 23:39:43 +0000]
USB: isight-firmware: declare MODULE_FIRMWARE

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: Reduce scope of BKL in usb ioctl handling
Oliver Neukum [Wed, 13 Jan 2010 14:33:43 +0000]
USB: Reduce scope of BKL in usb ioctl handling

This pushes BKL down in ioctl handling and drops it
for some important ioctls

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: Push BKL on open down into the drivers
Oliver Neukum [Wed, 13 Jan 2010 14:33:15 +0000]
USB: Push BKL on open down into the drivers

Straightforward push into the drivers to allow
auditing individual drivers separately

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: Remove BKL from lseek implementations
Oliver Neukum [Wed, 13 Jan 2010 14:32:21 +0000]
USB: Remove BKL from lseek implementations

Replace it by
mutex_lock(&file->f_dentry->d_inode->i_mutex);
following the example of the generic method

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: Remove BKL from usbdev_open()
Oliver Neukum [Wed, 13 Jan 2010 14:31:48 +0000]
USB: Remove BKL from usbdev_open()

Locking had long been changed making BKL redundant.
Simply remove it.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: Remove BKL from poll()
Oliver Neukum [Wed, 13 Jan 2010 14:30:47 +0000]
USB: Remove BKL from poll()

Replace BKL with usbfs_mutex to protect a global counter
and a per file data structure

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: atm: Use FIELD_SIZEOF, trivial cleanup.
Thiago Farina [Tue, 12 Jan 2010 01:45:26 +0000]
USB: atm: Use FIELD_SIZEOF, trivial cleanup.

Signed-off-by: Thiago Farina <tfransosi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: serial: option.c: Add 4G W14 stick to blacklist for option_send_setup
Gernot Hillier [Mon, 11 Jan 2010 08:35:17 +0000]
USB: serial: option.c: Add 4G W14 stick to blacklist for option_send_setup

The 4G XS Stick W14 seems to not understand RTS/DTR setting in
option_send_setup causing long timeouts on any open() which disturbs a
lot of well-known userspace applications like minicom or ModemManager.

Therefore, we enable OPTION_BLACKLIST_SENDSETUP blacklisting for it.

Signed-off-by: Gernot Hillier <gernot@hillier.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: serial: option.c: Add blacklisting infrastructure for special device handling
Gernot Hillier [Mon, 11 Jan 2010 08:30:00 +0000]
USB: serial: option.c: Add blacklisting infrastructure for special device handling

As suggested by Matthias Urlichs, this patch adds a somehow generic
mechanism for special handling of devices which don't support all bits
expected by this driver.

The blacklisting code is heavily stolen from sierra.c, but extended to
support different special cases.

For now, one case is implemented (OPTION_BLACKLIST_SENDSETUP), targeted
at the 4G W14 device: devices which don't understand the setting of
RTS/DTR in option_send_setup() causing a USB timeout of 5 s in any
userspace open() which leads to errors in most userspace applications.

In addition, I prepared another case for devices with interfaces which
shall not be accessed by this driver (targeted at the D-Link DWM 652).

However, OPTION_BLACKLIST_RESERVED_IF is not fully implemented yet as I
have no device to test this. Anyone volunteering to help here?  If not,
I'll contact the guys who added D-Link DWM 652 support soon.

Signed-off-by: Gernot Hillier <gernot@hillier.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: serial: option.c: Add chipset information for 4G W14
Gernot Hillier [Mon, 11 Jan 2010 08:06:44 +0000]
USB: serial: option.c: Add chipset information for 4G W14

Carsten Juttner thankfully investigated a bit and found out some details
about the chipset used in the 4G W14 device I recently added to
option.c.

I think this information is useful for reference, so I'd be happy if you
could include those bits.

Signed-off-by: Gernot Hillier <gernot@hillier.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB goku_udc: make PCI device id constant
Németh Márton [Sun, 10 Jan 2010 14:35:23 +0000]
USB goku_udc: make PCI device id constant

The id_table field of the struct pci_driver is constant in <linux/pci.h>
so it is worth to make pci_ids also constant.

The semantic match that finds this kind of pattern is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
disable decl_init,const_decl_init;
identifier I1, I2, x;
@@
struct I1 {
  ...
  const struct I2 *x;
  ...
};
@s@
identifier r.I1, y;
identifier r.x, E;
@@
struct I1 y = {
  .x = E,
};
@c@
identifier r.I2;
identifier s.E;
@@
const struct I2 E[] = ... ;
@depends on !c@
identifier r.I2;
identifier s.E;
@@
+ const
struct I2 E[] = ...;
// </smpl>

Signed-off-by: Németh Márton <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB gadget: make Open Firmware device id constant
Németh Márton [Sun, 10 Jan 2010 14:35:14 +0000]
USB gadget: make Open Firmware device id constant

The match_table field of the struct of_device_id is constant in <linux/of_platform.h>
so it is worth to make ace_of_match also constant.

The semantic match that finds this kind of pattern is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
disable decl_init,const_decl_init;
identifier I1, I2, x;
@@
struct I1 {
  ...
  const struct I2 *x;
  ...
};
@s@
identifier r.I1, y;
identifier r.x, E;
@@
struct I1 y = {
  .x = E,
};
@c@
identifier r.I2;
identifier s.E;
@@
const struct I2 E[] = ... ;
@depends on !c@
identifier r.I2;
identifier s.E;
@@
+ const
struct I2 E[] = ...;
// </smpl>

Signed-off-by: Németh Márton <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB host: make Open Firmware device id constant
Németh Márton [Sun, 10 Jan 2010 14:35:03 +0000]
USB host: make Open Firmware device id constant

The match_table field of the struct of_device_id is constant in <linux/of_platform.h>
so it is worth to make the initialization data also constant.

The semantic match that finds this kind of pattern is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
disable decl_init,const_decl_init;
identifier I1, I2, x;
@@
struct I1 {
  ...
  const struct I2 *x;
  ...
};
@s@
identifier r.I1, y;
identifier r.x, E;
@@
struct I1 y = {
  .x = E,
};
@c@
identifier r.I2;
identifier s.E;
@@
const struct I2 E[] = ... ;
@depends on !c@
identifier r.I2;
identifier s.E;
@@
+ const
struct I2 E[] = ...;
// </smpl>

Signed-off-by: Németh Márton <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB hub: make USB device id constant
Németh Márton [Sun, 10 Jan 2010 14:34:53 +0000]
USB hub: make USB device id constant

The id_table field of the struct usb_device_id is constant in <linux/usb.h>
so it is worth to make the initialization data also constant.

The semantic match that finds this kind of pattern is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
disable decl_init,const_decl_init;
identifier I1, I2, x;
@@
struct I1 {
  ...
  const struct I2 *x;
  ...
};
@s@
identifier r.I1, y;
identifier r.x, E;
@@
struct I1 y = {
  .x = E,
};
@c@
identifier r.I2;
identifier s.E;
@@
const struct I2 E[] = ... ;
@depends on !c@
identifier r.I2;
identifier s.E;
@@
+ const
struct I2 E[] = ...;
// </smpl>

Signed-off-by: Németh Márton <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB misc: make USB device id constant
Németh Márton [Sun, 10 Jan 2010 14:34:45 +0000]
USB misc: make USB device id constant

The id_table field of the struct usb_device_id is constant in <linux/usb.h>
so it is worth to make the initialization data also constant.

The semantic match that finds this kind of pattern is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
disable decl_init,const_decl_init;
identifier I1, I2, x;
@@
struct I1 {
  ...
  const struct I2 *x;
  ...
};
@s@
identifier r.I1, y;
identifier r.x, E;
@@
struct I1 y = {
  .x = E,
};
@c@
identifier r.I2;
identifier s.E;
@@
const struct I2 E[] = ... ;
@depends on !c@
identifier r.I2;
identifier s.E;
@@
+ const
struct I2 E[] = ...;
// </smpl>

Signed-off-by: Németh Márton <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB image: make USB device id constant
Németh Márton [Sun, 10 Jan 2010 14:34:36 +0000]
USB image: make USB device id constant

The id_table field of the struct usb_device_id is constant in <linux/usb.h>
so it is worth to make the initialization data also constant.

The semantic match that finds this kind of pattern is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
disable decl_init,const_decl_init;
identifier I1, I2, x;
@@
struct I1 {
  ...
  const struct I2 *x;
  ...
};
@s@
identifier r.I1, y;
identifier r.x, E;
@@
struct I1 y = {
  .x = E,
};
@c@
identifier r.I2;
identifier s.E;
@@
const struct I2 E[] = ... ;
@depends on !c@
identifier r.I2;
identifier s.E;
@@
+ const
struct I2 E[] = ...;
// </smpl>

Signed-off-by: Németh Márton <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB serial: make USB device id constant
Németh Márton [Sun, 10 Jan 2010 14:34:24 +0000]
USB serial: make USB device id constant

The id_table field of the struct usb_device_id is constant in <linux/usb.h>
so it is worth to make the initialization data also constant.

The semantic match that finds this kind of pattern is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
disable decl_init,const_decl_init;
identifier I1, I2, x;
@@
struct I1 {
  ...
  const struct I2 *x;
  ...
};
@s@
identifier r.I1, y;
identifier r.x, E;
@@
struct I1 y = {
  .x = E,
};
@c@
identifier r.I2;
identifier s.E;
@@
const struct I2 E[] = ... ;
@depends on !c@
identifier r.I2;
identifier s.E;
@@
+ const
struct I2 E[] = ...;
// </smpl>

Signed-off-by: Németh Márton <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB class: make USB device id constant
Németh Márton [Sun, 10 Jan 2010 14:33:45 +0000]
USB class: make USB device id constant

The id_table field of the struct usb_device_id is constant in <linux/usb.h>
so it is worth to make the initialization data also constant.

The semantic match that finds this kind of pattern is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
disable decl_init,const_decl_init;
identifier I1, I2, x;
@@
struct I1 {
  ...
  const struct I2 *x;
  ...
};
@s@
identifier r.I1, y;
identifier r.x, E;
@@
struct I1 y = {
  .x = E,
};
@c@
identifier r.I2;
identifier s.E;
@@
const struct I2 E[] = ... ;
@depends on !c@
identifier r.I2;
identifier s.E;
@@
+ const
struct I2 E[] = ...;
// </smpl>

Signed-off-by: Németh Márton <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB skeleton: make USB device id constant
Németh Márton [Sun, 10 Jan 2010 14:33:33 +0000]
USB skeleton: make USB device id constant

The id_table field of the struct usb_device_id is constant in <linux/usb.h>
so it is worth to make the initialization data also constant.

The semantic match that finds this kind of pattern is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
disable decl_init,const_decl_init;
identifier I1, I2, x;
@@
struct I1 {
  ...
  const struct I2 *x;
  ...
};
@s@
identifier r.I1, y;
identifier r.x, E;
@@
struct I1 y = {
  .x = E,
};
@c@
identifier r.I2;
identifier s.E;
@@
const struct I2 E[] = ... ;
@depends on !c@
identifier r.I2;
identifier s.E;
@@
+ const
struct I2 E[] = ...;
// </smpl>

Signed-off-by: Németh Márton <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: musb: don't dereference NULL tusb_dma in dma_controller_destroy()
Roel Kluin [Sat, 9 Jan 2010 20:57:44 +0000]
USB: musb: don't dereference NULL tusb_dma in dma_controller_destroy()

Test whether tusb_dma is not NULL before dereferencing

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: Move hcd free_dev call into usb_disconnect to fix oops
Herbert Xu [Sun, 10 Jan 2010 09:15:03 +0000]
USB: Move hcd free_dev call into usb_disconnect to fix oops

USB: Move hcd free_dev call into usb_disconnect

I found a way to oops the kernel:

1. Open a USB device through devio.
2. Remove the hcd module in the host kernel.
3. Close the devio file descriptor.

The problem is that closing the file descriptor does usb_release_dev
as it is the last reference.  usb_release_dev then tries to invoke
the hcd free_dev function (or rather dereferencing the hcd driver
struct).  This causes an oops as the hcd driver has already been
unloaded so the struct is gone.

This patch tries to fix this by bringing the free_dev call earlier
and into usb_disconnect.  I have verified that repeating the
above steps no longer crashes with this patch applied.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: fix crash in uhci_scan_schedule
Pete Zaitcev [Fri, 8 Jan 2010 22:39:22 +0000]
USB: fix crash in uhci_scan_schedule

When hardware is removed on a Stratus, the system may crash like this:

ACPI: PCI interrupt for device 0000:7c:00.1 disabled
Trying to free nonexistent resource <00000000a8000000-00000000afffffff>
Trying to free nonexistent resource <00000000a4800000-00000000a480ffff>
uhci_hcd 0000:7e:1d.0: remove, state 1
usb usb2: USB disconnect, address 1
usb 2-1: USB disconnect, address 2
Unable to handle kernel paging request at 0000000000100100 RIP:
 [<ffffffff88021950>] :uhci_hcd:uhci_scan_schedule+0xa2/0x89c

 #4 [ffff81011de17e50] uhci_scan_schedule at ffffffff88021918
 #5 [ffff81011de17ed0] uhci_irq at ffffffff88023cb8
 #6 [ffff81011de17f10] usb_hcd_irq at ffffffff801f1c1f
 #7 [ffff81011de17f20] handle_IRQ_event at ffffffff8001123b
 #8 [ffff81011de17f50] __do_IRQ at ffffffff800ba749

This occurs because an interrupt scans uhci->skelqh, which is
being freed. We do the right thing: disable the interrupts in the
device, and do not do any processing if the interrupt is shared
with other source, but it's possible that another CPU gets
delayed somewhere (e.g. loops) until we started freeing.

The agreed-upon solution is to wait for interrupts to play out
before proceeding. No other bareers are neceesary.

A backport of this patch was tested on a 2.6.18 based kernel.
Testing of 2.6.32-based kernels is under way, but it takes us
forever (months) to turn this around. So I think it's a good
patch and we should keep it.

Tracked in RH bz#516851

Signed-Off-By: Pete Zaitcev <zaitcev@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: convert to the runtime PM framework
Alan Stern [Fri, 8 Jan 2010 17:57:28 +0000]
USB: convert to the runtime PM framework

This patch (as1329) converts the USB stack over to the PM core's
runtime PM framework.  This involves numerous changes throughout
usbcore, especially to hub.c and driver.c.  Perhaps the most notable
change is that CONFIG_USB_SUSPEND now depends on CONFIG_PM_RUNTIME
instead of CONFIG_PM.

Several fields in the usb_device and usb_interface structures are no
longer needed.  Some code which used to depend on CONFIG_USB_PM now
depends on CONFIG_USB_SUSPEND (requiring some rearrangement of header
files).

The only visible change in behavior should be that following a system
sleep (resume from RAM or resume from hibernation), autosuspended USB
devices will be resumed just like everything else.  They won't remain
suspended.  But if they aren't in use then they will naturally
autosuspend again in a few seconds.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: rearrange functions in driver.c
Alan Stern [Fri, 8 Jan 2010 17:57:14 +0000]
USB: rearrange functions in driver.c

This patch (as1328) reorders the functions in drivers/usb/core/driver.c
so as to put all the routines dependent on CONFIG_PM in one place.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: change handling of negative autosuspend delays
Alan Stern [Fri, 8 Jan 2010 17:57:02 +0000]
USB: change handling of negative autosuspend delays

This patch (as1327) changes the way negative autosuspend delays
prevent device from autosuspending.  The current code checks for
negative values explicitly in the autosuspend_check() routine.  The
updated code keeps things from getting that far by using
usb_autoresume_device() to increment the usage counter when a negative
delay is set, and by using usb_autosuspend_device() to decrement the
usage counter when a non-negative delay is set.

This complicates the set_autosuspend() attribute method code slightly,
but it will reduce the overall power management overhead.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: implement usb_enable_autosuspend
Alan Stern [Fri, 8 Jan 2010 17:56:54 +0000]
USB: implement usb_enable_autosuspend

This patch (as1326) adds usb_enable_autosuspend() and
usb_disable_autosuspend() routines for use by drivers.  If a driver
knows that its device can handle suspends and resumes correctly, it
can enable autosuspend all by itself.  This is equivalent to the user
writing "auto" to the device's power/level attribute.

The implementation differs slightly from what it used to be.  Now
autosuspend is disabled simply by doing usb_autoresume_device() (to
increment the usage counter) and enabled by doing
usb_autosuspend_device() (to decrement the usage counter).

The set_level() attribute method is updated to use the new routines,
and the USB Power-Management documentation is updated.

The patch adds a usb_enable_autosuspend() call to the hub driver's
probe routine, allowing the special-case code for hubs in quirks.c to
be removed.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: use the device lock for persist_enabled
Alan Stern [Fri, 8 Jan 2010 17:56:42 +0000]
USB: use the device lock for persist_enabled

This patch (as1325) changes the locking for the persist_enabled flag
in struct usb_device.  Now it is protected by the device lock, along
with all its neighboring bit flags, instead of the PM lock (which is
about to vanish anyway).

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: consolidate remote wakeup routines
Alan Stern [Fri, 8 Jan 2010 17:56:30 +0000]
USB: consolidate remote wakeup routines

This patch (as1324) makes a small change to the code used for remote
wakeup of root hubs.  hcd_resume_work() now calls the hub driver's
remote-wakeup routine instead of implementing its own version.

The patch is complicated by the need to rename remote_wakeup() to
usb_remote_wakeup(), make it non-static, and declare it in a header
file.  There's also the additional complication required to make
everything work when CONFIG_PM isn't set; the do-nothing inline
routine had to be moved into the header file.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: change locking for device-level autosuspend
Alan Stern [Fri, 8 Jan 2010 17:56:19 +0000]
USB: change locking for device-level autosuspend

This patch (as1323) changes the locking requirements for
usb_autosuspend_device(), usb_autoresume_device(), and
usb_try_autosuspend_device().  This isn't a very important change;
mainly it's meant to make the locking more uniform.

The most tricky part of the patch involves changes to usbdev_open().
To avoid an ABBA locking problem, it was necessary to reduce the
region protected by usbfs_mutex.  Since that mutex now protects only
against simultaneous open and remove, this posed no difficulty -- its
scope was larger than necessary.

And it turns out that usbfs_mutex is no longer needed in
usbdev_release() at all.  The list of usbfs "ps" structures is now
protected by the device lock instead of by usbfs_mutex.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: rearrange code in usb_probe_interface
Alan Stern [Fri, 8 Jan 2010 17:56:04 +0000]
USB: rearrange code in usb_probe_interface

This patch (as1322) reverses the two outcomes of an "if" statement in
usb_probe_interface(), to avoid an unnecessary level of indentation.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: Use bInterfaceNumber in bandwidth allocations.
Sarah Sharp [Tue, 5 Jan 2010 22:33:29 +0000]
USB: Use bInterfaceNumber in bandwidth allocations.

USB devices do not have to sort interfaces in their descriptors based on
the interface number, and they may choose to skip interface numbers.  The
USB bandwidth allocation code for installing a new configuration assumes
the for loop variable will match the interface number.  Make it use the
interface number (bInterfaceNumber) in the descriptor instead.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: unusual_devs: Add support for multiple Option 3G sticks
Jan Dumon [Tue, 5 Jan 2010 14:53:26 +0000]
USB: unusual_devs: Add support for multiple Option 3G sticks

Enable the SD-Card interface on multiple Option 3G sticks.
The unusual_devs.h entry is necessary because the device descriptor is
vendor-specific. That prevents usb-storage from binding to it as an interface
driver.

Signed-off-by: Jan Dumon <j.dumon@option.com>
Signed-off-by: Phil Dibowitz <phil@ipom.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoarm: defconfig: rx51: enable phonet and g_nokia
Felipe Balbi [Tue, 5 Jan 2010 14:10:14 +0000]
arm: defconfig: rx51: enable phonet and g_nokia

trivial patch enabling g_nokia on rx51_defconfig.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: gadget: introduce g_nokia gadget driver
Felipe Balbi [Tue, 5 Jan 2010 14:10:13 +0000]
USB: gadget: introduce g_nokia gadget driver

g_nokia is the gadget driver implementing
WMCDC Wireless Handset Control Model for the N900
device.

Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: xhci: Fix compile issues with xhci_get_slot_state()
Sarah Sharp [Mon, 4 Jan 2010 20:20:17 +0000]
USB: xhci: Fix compile issues with xhci_get_slot_state()

Randy Dunlap reported this error when compiling the xHCI driver:

linux-next-20100104/drivers/usb/host/xhci.h:1214:
sorry, unimplemented: inlining failed in call to 'xhci_get_slot_state': function body not available

The xhci_get_slot_state() function belongs in xhci-dbg.c, since it
involves debugging internal xHCI structures.  However, it is only used in
xhci-hcd.c.  Some toolchains may have issues since the inlined function
body is not in the xhci.h header file.  Remove the inline keyword to avoid
this.

Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: c67x00: use resource_size().
Thiago Farina [Fri, 1 Jan 2010 21:42:34 +0000]
USB: c67x00: use resource_size().

Signed-off-by: Thiago Farina <tfransosi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: FHCI: Correct the size argument to kzalloc
Julia Lawall [Wed, 30 Dec 2009 14:34:37 +0000]
USB: FHCI: Correct the size argument to kzalloc

urb_priv->tds has type struct td **, not struct td *, so the
elements of the array should have pointer type, not structure type.

Convert kzalloc to kcalloc as well.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@disable sizeof_type_expr@
type T;
T **x;
@@

  x =
  <+...sizeof(
- T
+ *x
  )...+>
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: cypress_m8: use put_unaligned_le32() where necessary
Johan Hovold [Thu, 31 Dec 2009 15:48:01 +0000]
USB: cypress_m8: use put_unaligned_le32() where necessary

Cc: Lonnie Mendez <dignome@gmail.com>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: ch341: use get_unaligned_le16 in break_ctl
Johan Hovold [Thu, 31 Dec 2009 15:47:59 +0000]
USB: ch341: use get_unaligned_le16 in break_ctl

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: serial: fix DMA buffers on stack for io_edgeport.c
Dan Carpenter [Thu, 31 Dec 2009 15:42:55 +0000]
USB: serial: fix DMA buffers on stack for io_edgeport.c

The original code was passing a stack variable as a dma buffer, so I
made it an allocated variable.  Instead of adding a bunch of kfree()
calls, I changed all the error return paths to gotos.

Also I noticed that the error checking wasn't correct because
usb_get_descriptor() can return negative values.

While I was at it, I made an unrelated white space change by moving
the unicode_to_ascii() on to one line.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: kobil_sct: clean up kobil_set_termios
Johan Hovold [Mon, 28 Dec 2009 22:01:58 +0000]
USB: kobil_sct: clean up kobil_set_termios

Kill string that is allocated and generated using speed and parity
settings but is never used (and never has been).

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: visor: fix DMA buffers on stack
Johan Hovold [Mon, 28 Dec 2009 22:01:57 +0000]
USB: visor: fix DMA buffers on stack

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: oti6858: fix DMA buffer on stack
Johan Hovold [Mon, 28 Dec 2009 22:01:56 +0000]
USB: oti6858: fix DMA buffer on stack

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: mos7840: fix DMA buffers on stack and endianess bugs
Johan Hovold [Mon, 28 Dec 2009 22:01:55 +0000]
USB: mos7840: fix DMA buffers on stack and endianess bugs

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: mos7720: fix DMA buffers on stack and clean up send_mos_cmd
Johan Hovold [Mon, 28 Dec 2009 22:01:54 +0000]
USB: mos7720: fix DMA buffers on stack and clean up send_mos_cmd

Change data-argument type from (void *) to (u8 *) to prevent endianess
problems.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

9 years agoUSB: kl5kusb105: fix DMA buffers on stack
Johan Hovold [Mon, 28 Dec 2009 22:01:52 +0000]
USB: kl5kusb105: fix DMA buffers on stack

Cc: Oliver Neukum <oliver@neukum.name>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>