Commit Graph

19 Commits

Author SHA1 Message Date
Arron Wang 971d63cff6 NFC: pn544: Pass hardware variant information when downloading firmware
Different pn544 hardware variant may use different commands to download
new firmwares. The C2 does a regular firmware download while the C3 uses
a more secure protocol.
As a consequence we need to pass the hardware variant from the HCI SW
version command reply down to the pn544 i2c layer, in order to use the
right protocol at run time.

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-02-16 23:49:54 +01:00
Arman Uguray 34f7e57b23 NFC: pn544: Refactor hw_config values
Some of the EEPROM configurations that are assigned by the PN544 driver
are set by the firmware and should not be modified by the driver. Others
are certain user mode configurations that are currently getting set to values
that shouldn't necessarily be dictated by the driver. This patch changes
most user and system mode configurations to the firmware defaults.

Signed-off-by: Arman Uguray <armansito@chromium.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-01-04 03:32:27 +01:00
Jeff Kirsher 98b32decc8 nfc: Fix FSF address in file headers
Several files refer to an old address for the Free Software Foundation
in the file header comment.  Resolve by replacing the address with
the URL <http://www.gnu.org/licenses/> so that we do not have to keep
updating the header comments anytime the address changes.

CC: linux-wireless@vger.kernel.org
CC: Lauro Ramos Venancio <lauro.venancio@openbossa.org>
CC: Aloisio Almeida Jr <aloisio.almeida@openbossa.org>
CC: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-12-11 10:56:21 -05:00
Joe Perches 17936b43f0 NFC: Standardize logging style
Use standardized styles to minimize coding defects.

Always use nfc_<level> where feasible.
Add \n to formats where appropriate.
Typo "it it" correction.
Add #define pr_fmt where appropriate.
Remove function tracing logging messages.
Remove OOM messages.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-09-25 01:35:39 +02:00
Arron Wang 3943826177 NFC: pn544: Add SE enable/disable operation
To enable the UICC secure element, we first enable the UICC gate list in
order for the SE to be able to use all RF technologies.
For the embedded SE, we just turn the eSE default mode to ON.

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-09-25 01:35:39 +02:00
Arron Wang 5faba2fdf9 NFC: pn544: Add SE discover operation
For the SWP secure element, we send the proprietary SELF_TEST_SWP
command and check the response.
For the WI secure element, we simply try to switch to the default
embedded SE mode. If that works, it means we have an embedded SE.

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-09-25 01:35:38 +02:00
Eric Lapuyade 8bd7fc8995 NFC: pn544: Add firmware operations hci ops
The firmware operation callback is passed by the physical layer to the
hci driver during probe. All the driver does is to store it and call it
when the fw_upload hci ops is invoked.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 01:13:33 +02:00
Eric Lapuyade eab10b71a7 NFC: pn544: i2c: Add firmware download mode power-on support
This is in preparation for pn544-i2c firmware download feature, where we
need to know if we're in regular or firmware upload mode.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 01:08:12 +02:00
Samuel Ortiz 0b456c418a NFC: Remove the static supported_se field
Supported secure elements are typically found during a discovery process
initiated when the NFC controller is up and running. For a given NFC
chipset there can be many configurations (embedded SE or not, with or
without a SIM card wired to the NFC controller SWP interface, etc...) and
thus driver code will never know before hand which SEs are available.
So we remove this field, it will be replaced by a real SE discovery
mechanism.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-14 13:44:19 +02:00
Arron Wang a69bdc1ecd NFC: pn544: Remove Felica and Jewel device presence check
There is no builtin command for driver to check the presence of
Felica and Jewel device, it is more reasonable for the userspace
daemon neard to build seperate commands to check the presence of
the card.

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-14 00:18:58 +02:00
Arron Wang 9c59844005 NFC: pn544: Identify Type F NFC-DEP through NFCID2
NFCID2 is defined as the first 2 manufacturer ID (IDm) bytes.
NFC DEP (NFC peer to peer) devices Type-F NFCID2 must start with
0x01fe according to the NFC Digital Specification.
By checking those first 2 bytes we send the right command either to the
reader gate when NFCID2 != 0x1fe (The NFC tag case) or to the NFCIP1 gate
when seeing an NFC DEP device (The NFC peer to peer case).

Without this fix, Felica (Type F) tags are not properly detected with this
driver.

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-14 00:18:58 +02:00
Samuel Ortiz 390a1bd853 NFC: Initial Secure Element API
Each NFC adapter can have several links to different secure elements and
that property needs to be exported by the drivers.
A secure element link can be enabled and disabled, and card emulation will
be handled by the currently active one. Otherwise card emulation will be
host implemented.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10 00:51:54 +01:00
Samuel Ortiz aa74103071 NFC: pn544: Separate the core code and the i2c one into different modules
As we may need to support other physical layers, we can avoid linking the
core part into each and every pn544 module.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10 00:51:52 +01:00
Eric Lapuyade bf71ab8ba5 NFC: Add HCI quirks to support driver (non)standard implementations
Some chips diverge from the HCI spec in their implementation of standard
features. This adds a new quirks parameter to
nfc_hci_allocate_device() to let the driver indicate its divergence.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10 00:51:51 +01:00
Eric Lapuyade 924d4a023e NFC: Fixed skb leak in tm_send() nfc and hci ops implementations
Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10 00:51:50 +01:00
Eric Lapuyade 40d06d3647 NFC: Changed event_received hci ops result semantic
Some chips use a standard HCI event code, destined to a proprietary
gate, with a different meaning. Therefore, the HCI driver must always
have a chance to intercept the event before standard processing is
attempted.
The new semantic specifies that the result value "1" means that the
driver doesn't especially handle the event. result <= 0 means it was
handled.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10 00:51:49 +01:00
Eric Lapuyade 27c31191b3 NFC: Added error handling in event_received hci ops
There is no use to return an error if the caller doesn't get it.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10 00:51:49 +01:00
Arron Wang 984d334f28 NFC: Fix sparse warnings due to missing static
Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-10-26 18:26:49 +02:00
Eric Lapuyade 97f18414af NFC: Separate pn544 hci driver in HW dependant and independant parts
The driver now has all HCI stuff isolated in one file, and all the
hardware link specifics in another. Writing a pn544 driver on top of
another hardware link is now just a matter of adding a new file for that
new hardware specifics.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-10-26 18:26:46 +02:00