Commit Graph

36 Commits

Author SHA1 Message Date
David Vrabel
fca10c81d9 WUSB: correct format of wusb_chid sysfs file
Make the wusb_chid sysfs file match the ABI documentation.

Print all zeros if the WUSB host is stopped (instead of an empty file)
and end the file with a newline.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-04-17 10:50:29 -07:00
David Vrabel
5936ac7f93 WUSB: fix oops when completing URBs for disconnected devices
Fix an oops in wusbhc_giveback_urb() if the wusb device had disconnected
while an urb was in progress. Also release the ref count obtained here.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-04-17 10:50:28 -07:00
David Vrabel
8db324ec43 WUSB: disconnect all devices when stopping a WUSB HCD
Make sure all WUSB devices are disconnected when stopping a WUSB HCD so
that we don't leak the devices' wusb_dev structures.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-04-17 10:50:28 -07:00
Linus Torvalds
811158b147 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (28 commits)
  trivial: Update my email address
  trivial: NULL noise: drivers/mtd/tests/mtd_*test.c
  trivial: NULL noise: drivers/media/dvb/frontends/drx397xD_fw.h
  trivial: Fix misspelling of "Celsius".
  trivial: remove unused variable 'path' in alloc_file()
  trivial: fix a pdlfush -> pdflush typo in comment
  trivial: jbd header comment typo fix for JBD_PARANOID_IOFAIL
  trivial: wusb: Storage class should be before const qualifier
  trivial: drivers/char/bsr.c: Storage class should be before const qualifier
  trivial: h8300: Storage class should be before const qualifier
  trivial: fix where cgroup documentation is not correctly referred to
  trivial: Give the right path in Documentation example
  trivial: MTD: remove EOL from MODULE_DESCRIPTION
  trivial: Fix typo in bio_split()'s documentation
  trivial: PWM: fix of #endif comment
  trivial: fix typos/grammar errors in Kconfig texts
  trivial: Fix misspelling of firmware
  trivial: cgroups: documentation typo and spelling corrections
  trivial: Update contact info for Jochen Hein
  trivial: fix typo "resgister" -> "register"
  ...
2009-04-03 15:24:35 -07:00
Jean Delvare
bf6aede712 workqueue: add to_delayed_work() helper function
It is a fairly common operation to have a pointer to a work and to need a
pointer to the delayed work it is contained in.  In particular, all
delayed works which want to rearm themselves will have to do that.  So it
would seem fair to offer a helper function for this operation.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Greg KH <greg@kroah.com>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02 19:04:50 -07:00
Alexey Zaytsev
542d886b7f trivial: Fix dubious bitwise 'and' usage spotted by sparse.
It doesn't change the semantics, but clearly
the logical 'and' was meant to be used here.

Signed-off-by: Alexey Zaytsev <alexey.zaytsev@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-03-30 15:21:57 +02:00
Johannes Weiner
31dbb80346 USB: use kzfree()
Use kzfree() instead of memset() + kfree().

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:44 -07:00
David Vrabel
6da9c99059 USB: allow libusb to talk to unauthenticated WUSB devices
To permit a userspace application to associate with WUSB devices
using numeric association, control transfers to unauthenticated WUSB
devices must be allowed.

This requires that wusbcore correctly sets the device state to
UNAUTHENTICATED, DEFAULT and ADDRESS and that control transfers can be
performed to UNAUTHENTICATED devices.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-24 16:20:35 -07:00
Jiri Slaby
49fa09215c USB: wusbcore/wa-xfer, fix lock imbalance
Fix locking on one wa_urb_enqueue_b's fail path. There was omitted unlock.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-17 14:01:29 -07:00
David Vrabel
dff243f7cb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream 2009-01-22 19:12:32 +00:00
Harvey Harrison
d767d88875 USB: wusb: annotate association types withe proper endianness
Also a trivial annotation in rh.c for:
drivers/usb/wusbcore/rh.c:366:9: warning: incorrect type in assignment (different base types)
drivers/usb/wusbcore/rh.c:366:9:    expected unsigned short [unsigned] [short] [usertype] <noident>
drivers/usb/wusbcore/rh.c:366:9:    got restricted __le16 [usertype] <noident>
drivers/usb/wusbcore/rh.c:367:9: warning: incorrect type in assignment (different base types)
drivers/usb/wusbcore/rh.c:367:9:    expected unsigned short [unsigned] [short] [usertype] <noident>
drivers/usb/wusbcore/rh.c:367:9:    got restricted __le16 [usertype] <noident>

Association types annotation fixes piles of warnings similar to:
drivers/usb/wusbcore/cbaf.c:238:30: warning: incorrect type in initializer (different base types)
drivers/usb/wusbcore/cbaf.c:238:30:    expected restricted __le16 [usertype] id
drivers/usb/wusbcore/cbaf.c:238:30:    got int
drivers/usb/wusbcore/cbaf.c:238:30: warning: incorrect type in initializer (different base types)
drivers/usb/wusbcore/cbaf.c:238:30:    expected restricted __le16 [usertype] len
drivers/usb/wusbcore/cbaf.c:238:30:    got int

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: David Vrabel <david.vrabel@csr.com>
Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-01-07 09:59:51 -08:00
David Vrabel
9a9b1d17ba wusb: return -ENOTCONN when resetting a port with no connected device
If reading the device descriptor fails during hub_port_init() fails,
then the port is disabled, disconnecting the device.  The port is then
reset at the start of the next init attempt but there is no device to
reset.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2009-01-06 17:58:02 +00:00
David Vrabel
e43ace8912 uwb: use print_hex_dump()
Use print_hex_dump() instead of the home-grown dump_bytes().

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-12-22 18:27:17 +00:00
David Vrabel
bce83697c5 uwb: use dev_dbg() for debug messages
Instead of the home-grown d_fnstart(), d_fnend() and d_printf() macros,
use dev_dbg() or remove the message entirely.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-12-22 18:22:50 +00:00
David Vrabel
fe6e87a4b5 wusb: fix oops when terminating a non-existant reservation
If a reservation was not established, do not try terminating it.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-12-12 13:25:21 +00:00
Stefano Panella
5b37717a23 uwb: improved MAS allocator and reservation conflict handling
Greatly enhance the MAS allocator:
  - Handle row and column reservations.
  - Permit all the available MAS to be allocated.
  - Follows the WiMedia rules on MAS selection.

Take appropriate action when reservation conflicts are detected.
  - Correctly identify which reservation wins the conflict.
  - Protect alien BP reservations.
  - If an owned reservation loses, resize/move it.
  - Follow the backoff procedure before requesting additional MAS.

When reservations are terminated, move the remaining reservations (if
necessary) so they keep following the MAS allocation rules.

Signed-off-by: Stefano Panella <stefano.panella@csr.com>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-12-12 13:00:06 +00:00
David Vrabel
56968d0c1a wusb: whci-hcd shouldn't do ASL/PZL updates while channel is inactive
ASL/PZL updates while the WUSB channel is inactive (i.e., the PZL and
ASL are stopped) may not complete.  This causes hangs when removing the
whci-hcd module if a device is still connected (removing the device
does an endpoint_disable which results in an ASL update to remove the
qset).

If the WUSB channel is inactive the update can simply be skipped as the
WHC doesn't care about the state of the ASL/PZL.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-11-25 14:23:40 +00:00
David Vrabel
6fae35f9ce uwb: add basic radio manager
The UWB radio manager coordinates the use of the radio between the
PALs that may be using it.  PALs request use of the radio with
uwb_radio_start() and the radio manager will start beaconing if its
not already doing so.  When the last PAL has called uwb_radio_stop()
beaconing will be stopped.

In the future, the radio manager will have a more sophisticated channel
selection algorithm, probably following the Channel Selection Policy
from the WiMedia Alliance when it is finalized.  For now, channel 9
(BG1, TFC1) is selected.

The user may override the channel selected by the radio manager and may
force the radio to stop beaconing.

The WUSB Host Controller PAL makes use of this and there are two new
debug PAL commands that can be used for testing.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-11-19 14:46:33 +00:00
Huang Weiyi
f88518d122 wusb: remove unused #include <version.h>
The file(s) below do not use LINUX_VERSION_CODE nor KERNEL_VERSION.
  drivers/usb/host/hwa-hc.c
  drivers/usb/host/whci/hcd.c
  drivers/usb/host/whci/int.c
  drivers/usb/host/whci/wusb.c
  drivers/usb/wusbcore/cbaf.c

This patch removes the said #include <version.h>.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-10-31 15:10:27 +00:00
David Vrabel
4656d5de95 wusb: reset WUSB devices with SetAddress(0)
Using a Reset Device IE to reset a WUSB device is too heavyweight as it
causes the devcie to disconnect (which the USB stack does not expect and
cannot handle).  Instead, do a SetAddress(0); SetAddress(AuthAddr) for
authenticated devices.

Unauthenticated devices will not be reset and the stack will have to rely
on the device timing out after TrustTimeout and disconnecting.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-10-28 12:10:25 +00:00
David Vrabel
4d2bea4ca0 wusb: do a proper channel stop
When stopping the WUSB channel the host should send Channel Stop IEs giving
the WUSB Channel Time of the last MMC.  Both WHCI and HWA hosts provide a
channel stop command for this.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-10-28 12:08:46 +00:00
David Vrabel
d409f3bf47 wusb: disable verification of the key generation algorithms
Verifing the key generation algorithms could take too long on a freshly
booted system (due to lack of entropy) so disable the test unless a module
parameter (debug_crypto_verify) is specified.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-10-28 12:08:21 +00:00
David Vrabel
cae1c11414 uwb: reference count reservations
Reference counting the struct uwb_rsv's is safer and easier to get right than
the transferring ownership of the structures from the PAL to reservation
manager.

This fixes an oops in the debug PAL after a reservation timed out.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-10-28 12:07:23 +00:00
David Vrabel
8092d7c978 uwb: don't use printk_ratelimit() so often
Avoid using printk_ratelimit() in many places because:
  - many were error messages reporting broken hardware (it's useful to
    get all of these).
  - the message itself wasn't useful so the message has been removed.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-10-16 13:56:53 +01:00
David Vrabel
92c4d9bd16 uwb: use kcalloc where appropriate
Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-10-15 14:50:10 +01:00
David Vrabel
6a7c3e464e uwb: depend on EXPERIMENTAL
The UWB stack has some sysfs APIs that will change thus it's best
marked as EXPERIMENTAL until these APIs are finalized.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-09-17 16:54:36 +01:00
Felipe Zimmerle
f1fa035f2b wusb: wusb-cbaf (CBA driver) sysfs ABI simplification
Simplify the sysfs ABI of the wusb-cbaf (Cable Based Association)
driver: use one value per file and cause the write of the CHID to
fetch the CDID (instead of requiring a separate read).

Update the example wusb-cbaf script to work with this revised ABI.

Signed-off-by: Felipe Zimmerle <felipe.zimmerle@indt.org.br>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-09-17 16:54:35 +01:00
David Vrabel
b60066c141 uwb: add symlinks in sysfs between radio controllers and PALs
Add a facility for PALs to have symlinks to their radio controller
(and vice-versa) and make WUSB host controllers use this.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-09-17 16:54:35 +01:00
Anderson Lizardo
b0a81328c2 wusb: fix bmRequestType for Abort RPipe request
WUSB 1.0 (Table 8-4) mentions that Abort RPipe requests must have bmRequestType
equal to 0x25, although current implementation sets bmRequestType to 0xa5. This
patch fixes this typo.

Signed-off-by: Anderson Lizardo <anderson.lizardo@indt.org.br>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-09-17 16:54:32 +01:00
Anderson Lizardo
f51c23baed wusb: fix error path for wusb_set_dev_addr()
Error path for wusb_set_dev_addr() was handled incorrectly. Fix it by
considering error only when return value is negative.

Signed-off-by: Anderson Lizardo <anderson.lizardo@indt.org.br>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-09-17 16:54:32 +01:00
Inaky Perez-Gonzalez
df3654236e wusb: add the Wire Adapter (WA) core
Common code for supporting Host Wire Adapters and Device Wire Adapters.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-09-17 16:54:31 +01:00
Inaky Perez-Gonzalez
870d539504 wusb: add the USB wusb-cbaf driver
Add a driver for cable based associated of (Wireless) USB devices.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-09-17 16:54:30 +01:00
Greg Kroah-Hartman
470cc41503 wusb: add the Wireless USB core (build-system)
Add the WUSB build system (Kconfig and Kbuild) files.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-09-17 16:54:30 +01:00
Inaky Perez-Gonzalez
d59db761b8 wusb: add the Wireless USB core (security)
Add the WUSB security (authentication) code.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-09-17 16:54:30 +01:00
Inaky Perez-Gonzalez
b69fada68b wusb: add the Wireless USB core (protocol)
Add the WUSB protocol (MMC management and device connection) code.

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-09-17 16:54:29 +01:00
Inaky Perez-Gonzalez
90ff96f224 wusb: add the Wireless USB core
Add support for Ceritified Wireless USB 1.0 to the USB stack.

This has been split into several patches for easier review.

core (this patch):
  - host controller infrastructure
  - cluster reservation
  - UWB PAL registration
  - fake root hub

protocol:
  - MMC management (start/stop, managing IEs)
  - device connection

security:
  - device authentication and authorization

build-system:
  - Kconfig and Kbuild files

Signed-off-by: David Vrabel <david.vrabel@csr.com>
2008-09-17 16:54:29 +01:00