linux-toradex.git/drivers/bluetooth/btusb.c, branch v2.6.34.8

Bluetooth: Added support for controller shipped with iMac i5

2010-08-13T20:27:31+00:00

commit 0a79f67445de50ca0a8dc1d34f3cc406d89c28b2 upstream.

Device class is ff(vend.) instead of e0(wlcon).

Output from command `usb-devices`:
T:  Bus=01 Lev=03 Prnt=03 Port=00 Cnt=01 Dev#=  6 Spd=12  MxCh= 0
D:  Ver= 2.00 Cls=ff(vend.) Sub=01 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=05ac ProdID=8215 Rev=01.82
S:  Manufacturer=Apple Inc.
S:  Product=Bluetooth USB Host Controller
S:  SerialNumber=7C6D62936607
C:  #Ifs= 4 Cfg#= 1 Atr=e0 MxPwr=0mA
I:  If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=01 Prot=01 Driver=btusb
I:  If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
I:  If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
I:  If#= 3 Alt= 0 #EPs= 0 Cls=fe(app. ) Sub=01 Prot=00 Driver=(none)

Signed-off-by: Cyril Lacoux 
Signed-off-by: Marcel Holtmann 
Signed-off-by: Greg Kroah-Hartman

Bluetooth: Convert controller hdev->type to hdev->bus

2010-02-27T13:05:38+00:00

The hdev->type is misnamed and should be actually hdev->bus instead. So
convert it now.

Signed-off-by: Marcel Holtmann

Bluetooth: Prevent ill-timed autosuspend in USB driver

2009-12-17T20:12:49+00:00

The device must be marked busy as it receives data.

Signed-off-by: Oliver Neukum 
Tested-by: Matthew Garrett 
Signed-off-by: Marcel Holtmann

USB: remove the auto_pm flag

2009-12-11T19:55:21+00:00

This patch (as1302) removes the auto_pm flag from struct usb_device.
The flag's only purpose was to distinguish between autosuspends and
external suspends, but that information is now available in the
pm_message_t argument passed to suspend methods.

Signed-off-by: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

fix memory leak in fixed btusb_close

2009-11-14T20:57:08+00:00

If the waker is killed before it can replay outstanding URBs, these URBs
won't be freed or will be replayed at the next open.  This patch closes
the window by explicitely discarding outstanding URBs.

Signed-off-by: Oliver Neukum 
Acked-by: Marcel Holtmann 
Signed-off-by: Linus Torvalds

btusb bluetooth driver: wait for 'waker' work too before closing

2009-11-11T21:32:29+00:00

Rafael debugged a resume-time hang (with oopses in workqueue handling)
on his laptop that was due to the 'waker' workqueue entry being
disconnected and then released without the workqueue entry having been
synchronized.

Several people were involved, with Oleg Nesterov doing a debugging patch
showing what workqueue entry was corrupt etc.

This was a regression introduced by commit 7bee549e19 ("Bluetooth: Add
USB autosuspend support to btusb driver") as Rafael points out (not
actually bisected, but it became clear once the bug was found).

Tested-and-reported-by: Rafael J. Wysocki 
Acked-by: Oliver Neukum 
Cc: Oleg Nesterov 
Cc: Tejun Heo 
Cc: Marcel Holtmann 
Signed-off-by: Linus Torvalds

Bluetooth: Add USB autosuspend support to btusb driver

2009-08-24T23:31:24+00:00

This patch adds support of USB autosuspend to the btusb driver.

If the device doesn't support remote wakeup, simple support based on
up/down is provided. If the device supports remote wakeup, additional
support for autosuspend while the interface is up is provided. This is
done by queueing URBs in an anchor structure and waking the device up
from a work queue on sending. Reception triggers remote wakeup.

The last busy facility of the USB autosuspend code is used. To close
a race between autosuspend and transmission, a counter of ongoing
transmissions is maintained.

Add #ifdefs for CONFIG_PM as necessary.

Signed-off-by: Oliver Neukum 
Tested-by: Sarah Sharp 
Signed-off-by: Marcel Holtmann

Bluetooth: Improve USB driver throughput by increasing the frame size

2009-08-22T21:12:37+00:00

This patch increases the receive buffer size to HCI_MAX_FRAME_SIZE
which improves the RX throughput considerably.

Tested against BRM/Atheros/CSR USB Dongles with PAN profile using
iperf and chariot. This gave significant (around 40%) increase
in performance (increased from 0.8 to 1.5 Mb/s in Sheld room)

Signed-off-by: Vikram Kandukuri 
Signed-off-by: Marcel Holtmann

Bluetooth: Submit bulk URBs along with interrupt URBs

2009-02-27T05:14:36+00:00

Submitting the bulk URBs for ACL data transfers only on demand has no
real benefit compared to just submit them when a Bluetooth device gets
opened. So when submitting the interrupt URBs for HCI events, just
submit the bulk URBs, too.

This solves a problem with some Bluetooth USB dongles that has been
reported over the last few month. These devices require that the bulk
URBs are actually present. These devices are really broken, but there
is nothing we can do about it.

Signed-off-by: Marcel Holtmann

Bluetooth: Enable per-module dynamic debug messages

2008-11-30T11:17:28+00:00

With the introduction of CONFIG_DYNAMIC_PRINTK_DEBUG it is possible to
allow debugging without having to recompile the kernel. This patch turns
all BT_DBG() calls into pr_debug() to support dynamic debug messages.

As a side effect all CONFIG_BT_*_DEBUG statements are now removed and
some broken debug entries have been fixed.

Signed-off-by: Marcel Holtmann