11 Aug, 2010
13 commits
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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
Cc: stable
Signed-off-by: Greg Kroah-Hartman -
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 useSigned-off-by: Igor Grinberg
Signed-off-by: Mike Rapoport
Signed-off-by: Greg Kroah-Hartman -
Fixes below compilation warning from ulpi.h
include/linux/usb/ulpi.h:145:
warning: 'struct otg_io_access_ops' declared inside parameter list
include/linux/usb/ulpi.h:145:
warning: its scope is only this definition or declaration,
which is probably not what you wantSigned-off-by: Ajay Kumar Gupta
Signed-off-by: Greg Kroah-Hartman -
This patch (as1395) adds code to hcd_pci_suspend() for handling wakeup
races. This is another general race pattern, similar to the "open
vs. unregister" race we're all familiar with. Here, the race is
between suspending a device and receiving a wakeup request from one of
the device's suspended children.In particular, if a root-hub wakeup is requested at about the same
time as the corresponding USB controller is suspended, and if the
controller is enabled for wakeup, then the controller should either
fail to suspend or else wake right back up again.During system sleep this won't happen very much, especially since host
controllers generally aren't enabled for wakeup during sleep. However
it is definitely an issue for runtime PM. Something like this will be
needed to prevent the controller from autosuspending while waiting for
a root-hub resume to take place. (That is, in fact, the common case,
for which there is an extra test.)Signed-off-by: Alan Stern
Signed-off-by: Greg Kroah-Hartman -
This patch (as1385) adds a "do_wakeup" parameter to the pci_suspend
method used by PCI-based host controller drivers. ehci-hcd in
particular needs to know whether or not to enable wakeup when
suspending a controller. Although that information is currently
available through device_may_wakeup(), when support is added for
runtime suspend this will no longer be true.Signed-off-by: Alan Stern
Signed-off-by: Greg Kroah-Hartman -
This patch (as1393) converts several of the single-bit fields in
struct usb_hcd to atomic flags. This is for safety's sake; not all
CPUs can update bitfield values atomically, and these flags are used
in multiple contexts.The flag fields that are set only during registration or removal can
remain as they are, since non-atomic accesses at those times will not
cause any problems.(Strictly speaking, the authorized_default flag should become atomic
as well. I didn't bother with it because it gets changed only via
sysfs. It can be done later, if anyone wants.)Signed-off-by: Alan Stern
Signed-off-by: Greg Kroah-Hartman -
Added a disconnect() callback to composite devices which
is called by composite glue when its disconnect callback
is called by gadget.Signed-off-by: Michal Nazarewicz
Signed-off-by: Kyungmin Park
Acked-by: David Brownell
Signed-off-by: Greg Kroah-Hartman -
usb_string_ids_tab() and usb_string_ids_n() functions added to
the composite framework. The first accepts an array of
usb_string object and for each registeres a string id and the
second registeres a given number of ids and returns the first.This may simplify string ids registration since gadgets and
composite functions won't have to call usb_string_id() several
times and each time check for errer status -- all this will be
done with a single call.Signed-off-by: Michal Nazarewicz
Signed-off-by: Kyungmin Park
Signed-off-by: Greg Kroah-Hartman -
FunctionFS had a bit unique name for function used to add it
to USB configuration. Renamed as to match naming convention
of other functions.Signed-off-by: Michal Nazarewicz
Signed-off-by: Kyungmin Park
Signed-off-by: Greg Kroah-Hartman -
With this patch, the LPM capable EHCI host controller can put device
into L1 sleep state which is a mode that can enter/exit quickly, and
reduce power consumption.Signed-off-by: Jacob Pan
Signed-off-by: Alek Du
Signed-off-by: Greg Kroah-Hartman -
EHCI 1.1 addendum introduced several energy efficiency extensions for
EHCI USB host controllers:
1. LPM (link power management)
2. Per-port change
3. Shorter periodic frame list
4. Hardware prefetchingThis patch is intended to define the HW bits and debug interface for
EHCI 1.1 addendum. The LPM and Per-port change patches will be sent out
after this patch.Signed-off-by: Jacob Pan
Signed-off-by: Alek Du
Signed-off-by: Greg Kroah-Hartman -
otg_io_write() function does not follow the declaration of
struct otg_io_access_ops.Signed-off-by: Igor Grinberg
Signed-off-by: Greg Kroah-Hartman -
This patch (as1390) fixes a problem that crops up when a UHCI host
controller is unbound from uhci-hcd while there are still some active
URBs. The URBs have to be unlinked when the root hub is unregistered,
and uhci-hcd relies upon root-hub status polls as part of its
unlinking procedure. But usb_hcd_poll_rh_status() won't make those
status calls if hcd->rh_registered is clear, and the flag is cleared
_before_ the unregistration takes place.Since hcd->rh_registered is used for other things and needs to be
cleared early, the solution is to add a new flag (rh_pollable) and use
it instead. It gets cleared _after_ the root hub is unregistered.Now that the status polls don't end too soon, we have to make sure
they also don't occur too late -- after the root hub's usb_device
structure or the HCD's private structures are deallocated. Therefore
the patch adds usb_get_device() and usb_put_device() calls to protect
the root hub structure, and it adds an extra del_timer_sync() to
prevent the root-hub timer from causing an unexpected status poll.This additional complexity would not be needed if the HCD framework
had provided separate stop() and release() callbacks instead of just
stop(). This lack could be fixed at some future time (although it
would require changes to every host controller driver); when that
happens this patch won't be needed any more.Signed-off-by: Alan Stern
Signed-off-by: Greg Kroah-Hartman
08 Aug, 2010
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (214 commits)
ALSA: hda - Add pin-fix for HP dc5750
ALSA: als4000: Fix potentially invalid DMA mode setup
ALSA: als4000: enable burst mode
ALSA: hda - Fix initial capsrc selection in patch_alc269()
ASoC: TWL4030: Capture route runtime DAPM ordering fix
ALSA: hda - Add PC-beep whitelist for an Intel board
ALSA: hda - More relax for pending period handling
ALSA: hda - Define AC_FMT_* constants
ALSA: hda - Fix beep frequency on IDT 92HD73xx and 92HD71Bxx codecs
ALSA: hda - Add support for HDMI HBR passthrough
ALSA: hda - Set Stream Type in Stream Format according to AES0
ALSA: hda - Fix Thinkpad X300 so SPDIF is not exposed
ALSA: hda - FIX to not expose SPDIF on Thinkpad X301, since it does not have the ability to use SPDIF
ASoC: wm9081: fix resource reclaim in wm9081_register error path
ASoC: wm8978: fix a memory leak if a wm8978_register fail
ASoC: wm8974: fix a memory leak if another WM8974 is registered
ASoC: wm8961: fix resource reclaim in wm8961_register error path
ASoC: wm8955: fix resource reclaim in wm8955_register error path
ASoC: wm8940: fix a memory leak if wm8940_register return error
ASoC: wm8904: fix resource reclaim in wm8904_register error path
...
03 Aug, 2010
2 commits
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The UVC host and gadget drivers both define constants and structures in
private header files. Move all those definitions to linux/usb/video.h
where they can be shared by the two drivers (and be available for
userspace applications).Signed-off-by: Laurent Pinchart
Signed-off-by: Greg Kroah-Hartman
Signed-off-by: Mauro Carvalho Chehab -
Use the macros instead of hardcoding numerical constants for the
controls information bitfield.Signed-off-by: Laurent Pinchart
Signed-off-by: Mauro Carvalho Chehab
23 Jun, 2010
2 commits
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Also add a list of open topics.
Signed-off-by: Daniel Mack
Signed-off-by: Takashi Iwai -
Get rid of the last occurances of _v1 suffixes, and move the version
number right after the "uac" string. Now things are consitent again.Sorry for the forth and back, but it just looks much nicer this way.
Signed-off-by: Daniel Mack
Signed-off-by: Takashi Iwai
01 Jun, 2010
4 commits
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Move more definitions from private enums to appropriate header files.
Signed-off-by: Daniel Mack
Signed-off-by: Takashi Iwai -
This is another regression from the UAC2 code refactoring.
Signed-off-by: Daniel Mack
Signed-off-by: Takashi Iwai -
Also, remove the 'bmControl' field from uac_clock_selector_descriptor,
which was at the wrong offset. This struct is currently unused.Signed-off-by: Daniel Mack
Signed-off-by: Takashi Iwai -
Introduce two new static inline functions for a more readable parsing
of UAC2 bmaControls.Signed-off-by: Daniel Mack
Signed-off-by: Takashi Iwai
30 May, 2010
1 commit
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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (26 commits)
ALSA: snd-usb-caiaq: Bump version number to 1.3.21
ALSA: Revert "ALSA: snd-usb-caiaq: Set default input mode of A4DJ"
ALSA: snd-usb-caiaq: Simplify single case to an 'if'
ALSA: snd-usb-caiaq: Restore 'Control vinyl' input mode on A4DJ
ALSA: hda: Use LPIB for a Shuttle device
ALSA: hda: Add support for another Lenovo ThinkPad Edge in conexant codec
ALSA: hda: Use LPIB for Sony VPCS11V9E
ALSA: usb-audio: fix feature unit parser for UAC2
ALSA: asihpi - Minor code cleanup
ALSA: asihpi - Add support for new ASI8800 family
ALSA: asihpi - Fix bug preventing outstream_write preload from happening
ALSA: asihpi - Fix imbalanced lock path in hw_message
ALSA: asihpi - Remove support for old ASI8800 family
ALSA: asihpi - Add hd radio blend functions
ALSA: asihpi - Remove unused io map functions
ALSA: usb-audio: add support for UAC2 pitch control
ALSA: usb-audio: parse UAC2 endpoint descriptors correctly
ALSA: usb-audio: fix return values
ALSA: usb-audio: parse more format descriptors with structs
sound: Add missing spin_unlock
...
27 May, 2010
1 commit
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UAC2 devices have their information about pitch control stored in a
different field. Parse it, and emulate the bits for a v1 device.A new struct uac2_iso_endpoint_descriptor is added.
Signed-off-by: Daniel Mack
Acked-by: Greg Kroah-Hartman
Signed-off-by: Takashi Iwai
21 May, 2010
16 commits
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (229 commits)
USB: remove unused usb_buffer_alloc and usb_buffer_free macros
usb: musb: update gfp/slab.h includes
USB: ftdi_sio: fix legacy SIO-device header
USB: kl5usb105: reimplement using generic framework
USB: kl5usb105: minor clean ups
USB: kl5usb105: fix memory leak
USB: io_ti: use kfifo to implement write buffering
USB: io_ti: remove unsused private counter
USB: ti_usb: use kfifo to implement write buffering
USB: ir-usb: fix incorrect write-buffer length
USB: aircable: fix incorrect write-buffer length
USB: safe_serial: straighten out read processing
USB: safe_serial: reimplement read using generic framework
USB: safe_serial: reimplement write using generic framework
usb-storage: always print quirks
USB: usb-storage: trivial debug improvements
USB: oti6858: use port write fifo
USB: oti6858: use kfifo to implement write buffering
USB: cypress_m8: use kfifo to implement write buffering
USB: cypress_m8: remove unused drain define
...Fix up conflicts (due to usb_buffer_alloc/free renaming) in
drivers/input/tablet/acecad.c
drivers/input/tablet/kbtab.c
drivers/input/tablet/wacom_sys.c
drivers/media/video/gspca/gspca.c
sound/usb/usbaudio.c -
Lots of minor formatting cleanups in includes/usb/ to make checkpatch
happier.Signed-off-by: Greg Kroah-Hartman
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The FunctionFS is a USB composite function that can be used
with the composite framework to create an USB gadget.>From kernel point of view it is just a composite function with
some unique behaviour. It may be added to an USB
configuration only after the user space driver has registered
by writing descriptors and strings (the user space program has
to provide the same information that kernel level composite
functions provide when they are added to the configuration).>From user space point of view it is a file system which when
mounted provide an "ep0" file. User space driver need to
write descriptors and strings to that file. It does not need
to worry about endpoints, interfaces or strings numbers but
simply provide descriptors such as if the function was the
only one (endpoints and strings numbers starting from one and
interface numbers starting from core). The FunctionFS changes
numbers of those as needed also handling situation when
numbers differ in different configurations.When descriptors and strings are written "ep#" files appear
(one for each declared endpoint) which handle communication on
a single endpoint. Again, FunctionFS takes care of the real
numbers and changing of the configuration (which means that
"ep1" file may be really mapped to (say) endpoint 3 (and when
configuration changes to (say) endpoint 2)). "ep0" is used
for receiving events and handling setup requests.When all files are closed the function disables itself.
Signed-off-by: Michal Nazarewicz
Cc: Kyungmin Park
Cc: Marek Szyprowski
Signed-off-by: Greg Kroah-Hartman -
Remove multi-urb write from the generic driver and simplify the
prepare_write_buffer prototype:int (*prepare_write_buffer)(struct usb_serial_port *port,
void *dest, size_t size);The default implementation simply fills dest with data from port write
fifo but drivers can override it if they need to process the outgoing
data (e.g. add headers).Turn ftdi_sio into a generic fifo-based driver, which lowers CPU usage
significantly for small writes while retaining maximum throughput.Signed-off-by: Johan Hovold
Signed-off-by: Greg Kroah-Hartman -
Reimplement fifo-based writes in the generic driver using a multiple
pre-allocated urb scheme.In contrast to multi-urb writes, no allocations (of urbs or buffers) are
made during run-time and there is less pressure on the host stack
queues as currently only two urbs are used (implementation is generic
and can handle more than two urbs as well, though).Initial tests using ftdi_sio show that the implementation achieves the
same (maximum) throughput at high baudrates as multi-urb writes. The CPU
usage is much lower than for multi-urb writes for small write requests
and only slightly higher for large (e.g. 2k) requests (due to extra copy
via fifo?).Also outperforms multi-urb writes for small write requests on an
embedded arm-9 system, where multi-urb writes are CPU-bound at high
baudrates (perf reveals that a lot of time is spent in the host stack
enqueue function -- could perhaps be a bug as well).Keeping the original write_urb, buffer and flag for now as there are
other drivers depending on them.Signed-off-by: Johan Hovold
Signed-off-by: Greg Kroah-Hartman -
The Pipe Usage descriptor is needed for USB Attached SCSI
Signed-off-by: Matthew Wilcox
Signed-off-by: Greg Kroah-Hartman -
This patch (as1374) cleans up a few loose ends in the
include/linux/usb/ch11.h header file and exports it to userspace.Signed-off-by: Alan Stern
Cc: Eric Lescouet
Signed-off-by: Greg Kroah-Hartman -
This patch adds a sysfs entry (/sys/devices/platform/_UDC_/gadget/suspended) to
show the suspend state of an USB composite gadget.Signed-off-by: Fabien Chouteau
Signed-off-by: Greg Kroah-Hartman -
Signed-off-by: Yauheni Kaliuta
Signed-off-by: Greg Kroah-Hartman -
Signed-off-by: Yauheni Kaliuta
Signed-off-by: Greg Kroah-Hartman -
Bulk endpoint streams were added in the USB 3.0 specification. Streams
allow a device driver to overload a bulk endpoint so that multiple
transfers can be queued at once.The device then decides which transfer it wants to work on first, and can
queue part of a transfer before it switches to a new stream. All this
switching is invisible to the device driver, which just gets a completion
for the URB. Drivers that use streams must be able to handle URBs
completing in a different order than they were submitted to the endpoint.This requires adding new API to set up xHCI data structures to support
multiple queues ("stream rings") per endpoint. Drivers will allocate a
number of stream IDs before enqueueing URBs to the bulk endpoints of the
device, and free the stream IDs in their disconnect function. See
Documentation/usb/bulk-streams.txt for details.The new mass storage device class, USB Attached SCSI Protocol (UASP), uses
these streams API.Signed-off-by: Sarah Sharp
Signed-off-by: Greg Kroah-Hartman -
Allow the xHCI drivers (and any new USB 3.0 drivers) to parse the
SuperSpeed endpoint companion descriptor to find the maximum number of
bulk endpoint streams the endpoint supports. This is used to calculate
the maximum total number of streams the driver can allocate.Signed-off-by: Sarah Sharp
Signed-off-by: Greg Kroah-Hartman -
Definitions for registers defined by ULPI specification v1.1.
Signed-off-by: Heikki Krogerus
Signed-off-by: Greg Kroah-Hartman -
g_hid is a USB gadget driver implementing the Human Interface Device class
specification. The driver handles basic HID protocol handling in the
kernel, and allows userspace to read/write HID reports trough /dev/hidgX
character devices.Signed-off-by: Fabien Chouteau
Signed-off-by: Peter Korsgaard
Signed-off-by: Greg Kroah-Hartman -
Generalise write buffer preparation.
This allows for drivers to manipulate (e.g. add headers) to bulk out
data before it is sent.This adds a new function pointer to usb_serial_driver:
int (*prepare_write_buffer)(struct usb_serial_port *port,
void **dest, size_t size, const void *src, size_t count);The function is generic and can be used with either kfifo-based or
multi-urb writes:If *dest is NULL the implementation should allocate dest.
If src is NULL the implementation should use the port write fifo.If not set, a generic implementation is used which simply uses memcpy or
kfifo_out.Signed-off-by: Johan Hovold
Signed-off-by: Greg Kroah-Hartman -
Use dynamic transfer buffer sizes since it is more efficient to let the
host controller do the partitioning to fit endpoint size. This way we
also do not use more than one urb per write request.Replace max_in_flight_urbs with multi_urb_write flag in struct
usb_serial_driver to enable multi-urb writes.Use MAX_TX_URBS=40 and a max buffer size of PAGE_SIZE to prevent DoS
attacks.Signed-off-by: Johan Hovold
Signed-off-by: Greg Kroah-Hartman
