linux-toradex.git/net/nfc, branch v4.2.6

nfc: nci: hci: Add check on skb nci_hci_send_cmd parameter

2015-09-29T17:33:15+00:00

commit 5a9e0ffc0f128ecdf7c770f76c268e4f9f3c9118 upstream.

skb can be NULL and may lead to a NULL pointer error.

Add a check condition before setting HCI rx buffer.

Signed-off-by: Christophe Ricard 
Signed-off-by: Samuel Ortiz 
Signed-off-by: Greg Kroah-Hartman

nfc: netlink: Warning fix

2015-09-29T17:33:15+00:00

commit adca3c38d807b341a965d0aba8721d0784d8471b upstream.

When NFC_ATTR_VENDOR_DATA is not set, data_len is 0 and data is NULL.

Fixes the following warning:

net/nfc/netlink.c:1536:3: warning: 'data' may be used uninitialized
+in this function [-Wmaybe-uninitialized]
      return cmd->doit(dev, data, data_len);

Signed-off-by: Christophe Ricard 
Signed-off-by: Samuel Ortiz 
Signed-off-by: Greg Kroah-Hartman

nfc: netlink: Add check on NFC_ATTR_VENDOR_DATA

2015-09-29T17:33:15+00:00

commit fe202fe95564023223ce1910c9e352f391abb1d5 upstream.

NFC_ATTR_VENDOR_DATA is an optional vendor_cmd argument.
The current code was potentially using a non existing argument
leading to potential catastrophic results.

Signed-off-by: Christophe Ricard 
Signed-off-by: Samuel Ortiz 
Signed-off-by: Greg Kroah-Hartman

NFC: nci: fix mistake in uart generic driver

2015-06-15T16:10:37+00:00

It was not possible to register a UART driver due
to a bad condition.

Signed-off-by: Vincent Cuissard 
Signed-off-by: Samuel Ortiz

NFC: nci: remove current SLEEP mode management

2015-06-12T22:08:09+00:00

NCI deactivate management was modified to support all NCI
deactivation type. Problem is that all the API are not ready
yet for it.

Problem is that with current code, when neard asks to deactivate
the tag it sends a deactivate SLEEP but nobody will then send a
IDLE deactivate. This IDLE deactivate is mandatory since NFC
controller can only be unlocked by DH.

Signed-off-by: Vincent Cuissard 
Signed-off-by: Samuel Ortiz

NFC: nfcmrvl: add UART driver

2015-06-11T21:41:57+00:00

Add support of Marvell NFC chip controlled over UART

Signed-off-by: Vincent Cuissard 
Signed-off-by: Samuel Ortiz

NFC: nci: add generic uart support

2015-06-11T21:37:37+00:00

Some NFC controller supports UART as host interface.
As with SPI, a lot of code can be shared between vendor
drivers. This patch add the generic support of UART and
provides some extension API for vendor specific needs.

This code is strongly inspired by the Bluetooth HCI ldisc
implementation. NCI UART vendor drivers will have to register
themselves to this layer via nci_uart_register.

Underlying tty will have to be configured from user land
thanks to an ioctl.

Signed-off-by: Vincent Cuissard 
Signed-off-by: Samuel Ortiz

NFC: nci: Export nci_req_complete

2015-06-10T10:50:22+00:00

Drivers implementing proprietary ops may need it now.

Signed-off-by: Samuel Ortiz

NFC: netlink: Implement vendor command support

2015-06-08T23:21:35+00:00

Vendor commands are passed from userspace through the
NFC_CMD_VENDOR netlink command, allowing driver and hardware
specific operations implementations like for example RF tuning
or production line calibration.

Drivers will associate a set of vendor commands to a vendor
id, which could typically be an OUI. The netlink kernel
implementation will try to match the received vendor id
and sub command attributes with the registered ones. When
such match is found, the driver defined sub command routine
is called.

Signed-off-by: Samuel Ortiz

NFC: nci: Move close ops call in nci_close_device

2015-06-08T22:34:24+00:00

When closing the device some data (proprietary commands)
might be sent. The core state machine needs to be set for
correct command execution.

Signed-off-by: Christophe Ricard 
Signed-off-by: Samuel Ortiz