linux-toradex.git/drivers/usb, branch v2.6.32.58

xhci: Fix encoding for HS bulk/control NAK rate.

2012-03-04T17:49:21+00:00

commit 340a3504fd39dad753ba908fb6f894ee81fc3ae2 upstream.

The xHCI 0.96 spec says that HS bulk and control endpoint NAK rate must
be encoded as an exponent of two number of microframes.  The endpoint
descriptor has the NAK rate encoded in number of microframes.  We were
just copying the value from the endpoint descriptor into the endpoint
context interval field, which was not correct.  This lead to the VIA
host rejecting the add of a bulk OUT endpoint from any USB 2.0 mass
storage device.

The fix is to use the correct encoding.  Refactor the code to convert
number of frames to an exponential number of microframes, and make sure
we convert the number of microframes in HS bulk and control endpoints to
an exponent.

This should be back ported to kernels as old as 2.6.31, that contain the
commit dfa49c4ad120a784ef1ff0717168aa79f55a483a "USB: xhci - fix math
in xhci_get_endpoint_interval"

Signed-off-by: Sarah Sharp 
Tested-by: Felipe Contreras 
Suggested-by: Andiry Xu 
Signed-off-by: Greg Kroah-Hartman

USB: Fix handoff when BIOS disables host PCI device.

2012-03-04T17:49:21+00:00

commit cab928ee1f221c9cc48d6615070fefe2e444384a upstream.

On some systems with an Intel Panther Point xHCI host controller, the
BIOS disables the xHCI PCI device during boot, and switches the xHCI
ports over to EHCI.  This allows the BIOS to access USB devices without
having xHCI support.

The downside is that the xHCI BIOS handoff mechanism will fail because
memory mapped I/O is not enabled for the disabled PCI device.
Jesse Barnes says this is expected behavior.  The PCI core will enable
BARs before quirks run, but it will leave it in an undefined state, and
it may not have memory mapped I/O enabled.

Make the generic USB quirk handler call pci_enable_device() to re-enable
MMIO, and call pci_disable_device() once the host-specific BIOS handoff
is finished.  This will balance the ref counts in the PCI core.  When
the PCI probe function is called, usb_hcd_pci_probe() will call
pci_enable_device() again.

This should be back ported to kernels as old as 2.6.31.  That was the
first kernel with xHCI support, and no one has complained about BIOS
handoffs failing due to memory mapped I/O being disabled on other hosts
(EHCI, UHCI, or OHCI).

Signed-off-by: Sarah Sharp 
Acked-by: Oliver Neukum 
Cc: Jesse Barnes 
Signed-off-by: Greg Kroah-Hartman

USB: Added Kamstrup VID/PIDs to cp210x serial driver.

2012-03-04T17:49:21+00:00

commit c6c1e4491dc8d1ed2509fa6aacffa7f34614fc38 upstream.

Signed-off-by: Bruno Thomsen 
Signed-off-by: Greg Kroah-Hartman

USB: usbserial: add new PID number (0xa951) to the ftdi driver

2012-02-13T19:28:50+00:00

commit 90451e6973a5da155c6f315a409ca0a8d3ce6b76 upstream.

Signed-off-by: Milan Kocian 
Signed-off-by: Greg Kroah-Hartman

usb: Skip PCI USB quirk handling for Netlogic XLP

2012-02-13T19:28:50+00:00

commit e4436a7c17ac2b5e138f93f83a541cba9b311685 upstream.

The Netlogic XLP SoC's on-chip USB controller appears as a PCI
USB device, but does not need the EHCI/OHCI handoff done in
usb/host/pci-quirks.c.

The pci-quirks.c is enabled for all vendors and devices, and is
enabled if USB and PCI are configured.

If we do not skip the qurik handling on XLP, the readb() call in
ehci_bios_handoff() will cause a crash since byte access is not
supported for EHCI registers in XLP.

Signed-off-by: Jayachandran C 
Acked-by: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

usb: gadget: zero: fix bug in loopback autoresume handling

2012-02-13T19:28:50+00:00

commit 683da59d7b8ae04891636d4b59893cd4e9b0b7e5 upstream.

ab943a2e125b (USB: gadget: gadget zero uses new suspend/resume hooks)
introduced a copy-paste error where f_loopback.c writes to a variable
declared in f_sourcesink.c. This prevents one from creating gadgets
that only have a loopback function.

Signed-off-by: Timo Juhani Lindfors 
Signed-off-by: Felipe Balbi 
Signed-off-by: Greg Kroah-Hartman

USB: ftdi_sio: fix initial baud rate

2012-02-03T17:27:00+00:00

commit 108e02b12921078a59dcacd048079ece48a4a983 upstream.

Fix regression introduced by commit b1ffb4c851f1 ("USB: Fix Corruption
issue in USB ftdi driver ftdi_sio.c") which caused the termios settings
to no longer be initialised at open. Consequently it was no longer
possible to set the port to the default speed of 9600 baud without first
changing to another baud rate and back again.

Reported-by: Roland Ramthun 
Signed-off-by: Johan Hovold 
Tested-by: Roland Ramthun 
Signed-off-by: Greg Kroah-Hartman

USB: cp210x: do not map baud rates to B0

2012-02-03T17:26:59+00:00

commit be125d9c8d59560e7cc2d6e2b65c8fd233498ab7 upstream.

We do not implement B0 hangup yet so map low baudrates to 300bps.

Signed-off-by: Johan Hovold 
Cc: Preston Fick 
Signed-off-by: Greg Kroah-Hartman

USB: serial: CP210x: Added USB-ID for the Link Instruments MSO-19

2012-02-03T17:26:59+00:00

commit 791b7d7cf69de11275e4dccec2f538eec02cbff6 upstream.

This device is a Oscilloscope/Logic Analizer/Pattern Generator/TDR,
using a Silabs CP2103 USB to UART Bridge.

Signed-off-by: Renato Caldas 
Signed-off-by: Greg Kroah-Hartman

USB: usbsevseg: fix max length

2012-02-03T17:26:57+00:00

commit 1097ccebe630170080c41df0edcf88e0626e9c75 upstream.

This changes the max length for the usb seven segment delcom device to 8
from 6. Delcom has both 6 and 8 variants and having 8 works fine with
devices which are only 6.

Signed-off-by: Harrison Metzger 
Signed-off-by: Stuart Pook 
Signed-off-by: Greg Kroah-Hartman