Commit Graph

369 Commits

Author SHA1 Message Date
Mark A. Greer 24707296c7 NFC: trf7970a: Call spi_setup() to configure SPI communication
Call spi_setup() to configure SPI communication
with the trf7970a.  This will ensure that the
correct SPI parameters are used.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-09-07 23:13:42 +02:00
Mark A. Greer cc8d715864 NFC: trf7970a: Remove trf7970a_tg_listen_mdaa()
Currently, the digital layer 'tg_listen_mdaa'
hook is not used and it isn't necessary to have
a stub routine so remove it.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-09-07 23:13:42 +02:00
Mark A. Greer d3a6d33a7f NFC: trf7970a: Remove incorrect of_node_put() call
of_property_read_u32() does not take a reference
to the specified OF node so don't call of_node_put()
in trf7970a_get_autosuspend_delay().

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-09-07 23:13:42 +02:00
Dan Carpenter d07f1e8600 NFC: microread: Potential overflows in microread_target_discovered()
Smatch says that skb->data is untrusted so we need to check to make sure
that the memcpy() doesn't overflow.

Fixes: cfad1ba871 ('NFC: Initial support for Inside Secure microread')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-09-05 00:57:32 +02:00
Mark A. Greer f23b73526b NFC: trf7970a: Make gpio labels more readable
Make the labels for the two gpio enable lines
more user friendly by prefixing them with the
driver name.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-09-01 00:06:56 +02:00
Mark A. Greer 95064bd95a NFC: trf7970a: Add quirk to keep EN2 low
A bug has been discovered in the trf7970a where it
will generate an RF field even in passive target
mode when EN2 is asserted.  To work around this,
add support for the 'en2-rf-quirk' device tree
property which indicates that EN2 must remain low.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-09-01 00:06:55 +02:00
Mark A. Greer 772079eb77 NFC: trf7970a: Move IRQ Status Read quirk to device tree
The quirk indicating whether the trf7970a has
the "IRQ Status Read" erratum or not is currently
implemented using the 'driver_data' member of the
'spi_device_id' structure.  That requires the
driver to be modified to turn the quirk off when
a version of the trf7970a that doesn't have the
erratum is being used.  To fix that, create a
new device tree property called
'irq-status-read-quirk' that indicates that the
trf7970a being used has the erratum.

While at it, rename 'TRF7970A_QUIRK_IRQ_STATUS_READ_ERRATA'
to 'TRF7970A_QUIRK_IRQ_STATUS_READ' to make it
less of an eyesore.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-09-01 00:06:55 +02:00
Mark A. Greer 3bd14233aa NFC: trf7970a: Add VIN voltage override support
The trf7970a driver uses the voltage from the
power/regulator subsystem to determine what the
voltage on the VIN pin is.  Normally, this is
the right thing to do but sometimes the board
that the trf7970a is on may change the voltage.
This is the case for the trf7970atb board from
Texas Instruments where it boosts the VIN voltage
from 3.3V to 5V (see http://www.ti.com/tool/trf7970atb).

To handle this, add support for the 'vin-voltage-override'
device tree property which overrides the voltage value
given by the regulator subsystem.  When the DT property
is not present, the value from the regulator subsystem
is used.

The value of 'vin-voltage-override' is in uVolts.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-09-01 00:06:55 +02:00
Christophe Ricard 1892bf844e NFC: st21nfca: Adding P2P support to st21nfca in Initiator & Target mode
Support for Initiator and Target mode with ISO18092 commands support:
- ATR_REQ/ATR_RES
- PSL_REQ/PSL_RES
- DEP_REQ/DEP_RES

Work based on net/nfc/digital_dep.c.
st21nfca is using:
- Gate reader F for P2P in initiator mode.
- Gate card F for P2P in target mode.

Felica tag and p2p are differentiated with NFCID2.
When starting with 01FE it is acting in p2p mode.

On complete_target_discovered on ST21NFCA_RF_READER_F_GATE
supported_protocols is set to NFC_PROTO_NFC_DEP_MASK
for P2P.

Tested against: Nexus S, Galaxy S2, Galaxy S3, Galaxy S3 Mini,
Nexus 4 & Nexus 5.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 01:14:41 +02:00
Christophe Ricard d57d74eb76 NFC: st21nfca: Implement stop_poll HCI hook
Send DM_DISCONNECT command to disconnect Terminal Host from the HCI network.

- The persistent states of the terminal host pipes, including registry values,
are not modifies. Therefore, there is no NVRAM update to disconnect the
terminal host.
- The terminal host RF card gates are disabled which means that there will be no event
related to card RF gates until communication has been restored.
- The terminal host RF reader request is reset so the RF reader polling for terminal
host is disabled.

To restore the communication, the terminal host can send any HCI command or event.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 01:04:31 +02:00
Christophe Ricard 0531107e1c NFC: st21nfca: Improve read length sequence for P2P mode.
A DEP_RES with a SUPERVISOR PDU can be up to 16 bytes long.

In order to avoid useless read during p2p, extend first read
sequence to 16 and reduce third sequence to 12 to keep same
total on the full sequence.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 01:04:31 +02:00
Christophe Ricard 8e9466ccda NFC: st21nfca: Improved start of frame detection
A start of frame is 7E 00 not only 7E. Make sure the first read sequence is
starting with 7E 00.
For example: 7E FF FF FF FF is as a correct crc but it is a bad frame.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 01:04:31 +02:00
Christophe Ricard cf577344e2 NFC: st21nfca: Free buffer in case no data are retrieved.
In case no data are retrieve through i2c or one specific case is not handled.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 01:04:30 +02:00
Christophe Ricard fb92ff78f8 NFC: st21nfcb: few code clean up
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 00:49:37 +02:00
Christophe Ricard 35630df68d NFC: st21nfcb: Add driver for STMicroelectronics ST21NFCB NFC chip
Add driver for STMicroelectronics ST21NFCB NFC controller.
ST21NFCB is using NCI protocol and a proprietary low level transport
protocol called NDLC used on top.

NDLC:
The protocol defines 2 types of frame:
- One type carrying NCI data (referred as DATAFRAME frames).
- One type carrying protocol information used for flow control and error
control mechanisms (referred as SUPERVISOR frames).

After each frame transmission to the NFC controller, the device host
SHALL waitfor  an ACK (SUPERVISOR frame) reception before sending a
new frame.
The NFC controller MAY send a frame at anytime to the device host.
The NFC controller MAY send a specific WAIT supervisor frame to indicate
to device host that a NCI data packet has been received but that it could
take significant time before the NFC controller sends an ACK and thus
allows next data reception.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-07-23 00:49:28 +02:00
Mark A. Greer 6857bb9627 NFC: trf7970a: Add support for Felica Type 3 tags
Add support for the Felica protocol and Type 3 tags.
Both 212 and 424 kbps are supported.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-05-26 01:28:28 +02:00
Thierry Escande 09592ccfc2 NFC: port100: Add support for type 4B tag
This patch adds support for ISO-DEP protocol over NFC-B rf technology
by adding NFC_PROTO_ISO14443_B to the supported protocols and an entry
for framing configuration.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-05-26 00:42:02 +02:00
Christophe Ricard 7974728094 NFC: st21nfca: Add ISO15693 Reader/Writer support
Add support for ISO/IEC 15693 RF technology and Type 5 tags.
ISO15963 is using proprietary gate 12.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-05-20 00:48:28 +02:00
Christophe Ricard a779b8878c NFC: st21nfca: Improve load_session
In case anybody uses previous patchset with the CLF, add a check to make sure
missing pipe are created.
st21nfca returns its pipe list in the creation order (most recent latest).

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-05-20 00:48:06 +02:00
Christophe Ricard c44cb2edd0 NFC: dts: st21nfca: Add device-tree (Open Firmware) support to st21nfca
Add functions to recover hardware resources from the device-tree
when not provided by the platform data.

Based on pn544 devicetree implementation

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-05-20 00:47:43 +02:00
Christophe Ricard 0c942b007b NFC: st21nfca: Free buffer when a bad frame is detected
When a bad frame is detected for a bad crc.
We were reallocating and loosing the previous frame pointer.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-05-05 01:04:10 +02:00
Christophe Ricard a3c5d8fb7f NFC: st21nfca: Synchronize i2c Tx and Rx path
Stabilize communication by using a mutex.
This avoids running a write transaction during a read retry or a read
transaction during a write retry.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-05-05 01:01:23 +02:00
Christophe Ricard c97ffdbf51 NFC: st21nfca: Improved i2c Rx data correctness check
A frame starts with ST21NFCA_SOF_EOF(0x7e) + 0x00.
A frame ends with ST21NFCA_SOF_EOF(0x7e).
It is possible that the i2c macrocell is stopped for other
communication interfaces with highest priority(RF or SWP).
This can be seen with some 0xFF data at the end of a received shdlc buffer.
If this happen we need to discard the frame because the CLF will repeat it.

In order to push accurate data to hci layer, we add the following fix:
- Instead of looking for the first 0x7e in the frame, check that the last
received byte is 0x7e.
- Check that the first frame reception block start with start of
frame(0x7e 0x00). If not, clear the buffer.
- Check that the next frame reception block do not start with start of
frame(0x7e). If so, clear the buffer.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-05-05 01:00:34 +02:00
Christophe Ricard e1fb97b925 NFC: st21nfca: Fix st21nfca_hci_remove_len_crc tail room handling
There is no byte stuffing when data are stored in skb.
TAILROOM is 2 byte crc + 1 byte eof.

st21nfca_hci_remove_len_crc was doing an incorrect operation on
the TAILROOM data.
If shdlc timer T2 is triggered, it will request to send the same data.
Before every hci data was lost after st21nfca_hci_remove_len_crc.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-05-05 00:15:26 +02:00
Christophe Ricard 3096e25a3e NFC: st21nfca: Fix incorrect byte stuffing revocation
Byte stuffing was not correctly removed after a i2c read operation.
This was causing improper crc calculation when byte stuffing was
applied to more than 1 byte.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-05-05 00:06:27 +02:00
Christophe Ricard 0bb8a622d6 NFC: st21nfca: Remove few useless include
Remove unneeded includes from i2c.c

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-05-05 00:05:36 +02:00
Christophe Ricard 18d2c624f9 NFC: st21nfca: Improve st21nfca initialization by handling reboot properly
Change in st21nfca_hci_platform_init in order to handle in a better way the
internal reboot command.
Once the reboot is completed, the driver expect to receive a 0x7e filled
buffer.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:30 +02:00
Christophe Ricard fcb45e6ab3 NFC: st21nfca: Reworked st21nfca_request_resources
Remove struct st21nfca_i2c_phy* as this parameter can be retrieve
through i2c_get_clientdata(client)

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:30 +02:00
Christophe Ricard 9bac75d0ec NFC: st21nfca: st21nfca_hci_i2c_probe returns st21nfca_hci_probe result.
st21nfca_hci_probe return 0 in case of successful call and a different
value in any other cases.

There is no need to check for st21nfca_hci_probe return as this will be
checked after st21nfca_hci_i2c_probe is completed.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:30 +02:00
Christophe Ricard 761a2c4f90 NFC: st21nfca: Add __packed to struct st21nfca_pipe_info
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:29 +02:00
Christophe Ricard c5b0c370fc NFC: st21nfca: Remove sporadic wait_tab variable from functions.
wait_tab variable is already global and may create conflicts.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:29 +02:00
Christophe Ricard e8efab6e6b NFC: st21nfca: Fix warning: array subscript is above array bounds
Fix "warning: array subscript is above array bounds" in load_session

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:29 +02:00
Christophe Ricard cc3a9f7254 NFC: st21nfca: Fix sparse: cast to restricted __be16
Fixing "sparse: cast to restricted __be16" message when building with
make C=1 CF=-D__CHECK_ENDIAN__

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:29 +02:00
Clement Perrochaud 12b25dbf11 NFC: pn544_i2c: Fix null pointer exception when not using platform data
Fixes a null pointer exception occurring when the IRQ request in
pn544_hci_i2c_probe fails and no platform data is available.

Signed-off-by: Clément Perrochaud <clement.perrochaud@nxp.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:29 +02:00
Mark A. Greer 742b1f9fa2 NFC: trf7970a: Add support for the ISO/IEC 14443-B and Type 4B tags
Now that the NFC digital layer has support for the ISO/IEC 14443-B
protocol and type 4B tags, add the corresponding support to the
trf7970a driver.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:28 +02:00
Mark A. Greer fd0c8280cf NFC: trf7970a: Add 'autosuspend-delay' DTS property
The trf7970a driver currently uses a fixed autosuspend delay of 30 seconds.
To enable users to customize the delay as they see fit, add support for the
new 'autosuspend-delay' DTS property (part of the nfc node) which can
override the default 30 seconds.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:28 +02:00
Mark A. Greer 18422e686e NFC: trf7970a: Don't return value from trf7970a_switch_rf_on()
trf7970a_switch_rf_on() no longer returns anything other than 0 so make
it void and clean up the code that checks for errors when its called.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:28 +02:00
Mark A. Greer e6403b7c75 NFC: trf7970a: Add pm_runtime support
Add pm_runtime support by moving the code that enables the trf7970a to
the pm_runtime hook routines. The pm_runtime 'autosuspend' feature is
used so that the device isn't disabled until at least 30 seconds have
passed since trf7970a_switch_rf_off() was last called.

The result is that when trf7970a_switch_rf_on() is called, the device
will be enabled and initialized (if it isn't already).  When
trf7970a_switch_rf_off() is called, it will turn off the RF immediately
but leave the device enabled for at least 30 seconds.
If 30 seconds have passed and the pm_runtime facility decides to suspend
the driver, the device will be disabled then.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:28 +02:00
Mark A. Greer a1d2dc5b40 NFC: trf7970a: Turn RF on after hardware is configured
The NFC digital layer calls the 'switch_rf' hook to turn the RF on before
it configures the RF technology and framing. There is potential to confuse
a tag doing it this way so don't enable the RF until the RF technology and
initial framing have been configured.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:27 +02:00
Mark A. Greer ebcc5a0d08 NFC: trf7970a: Set correct Vin voltage in Chip Status Control register
Currently, the trf7970a driver assumes that the Vin voltage is 5V when
it writes to the 'Chip Status Control' register. That may not be correct
so use the regulator facility to get the Vin voltage and set the VRS5_3
bit correctly when writing to that register.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:27 +02:00
Mark A. Greer 12e9ade309 NFC: trf7970a: Allow different Modulator and SYS_CLK Control register values
Currently the driver writes the same value to the 'Modulator and SYS_CLK
Control' register no matter what RF technology is being used. That works
for now but new RF technologies (e.g., ISO/IEC 14443-B) will require
different values to be written to that register. To support this, add a
member to the trf7970a structure which is set by the RF technology handling
code and used by the framing code when it writes to that register.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:27 +02:00
Mark A. Greer a0822a7e3b NFC: trf7970a: Set 'Modulator and SYS_CLK Control' after 'ISO Control'
Writing to the 'ISO Control' register may cause the contents of the
'Modulator and SYS_CLK Control' register to change so be sure to write
to 'Modulator and SYS_CLK Control' after writing to 'ISO Control'.

Note that writing to the 'Modulator and SYS_CLK Control' register
shouldn't be necessary at all according to the trf790a manual but testing
shows that it is necessary.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:27 +02:00
Mark A. Greer 49d19cc794 NFC: trf7970a: Only write 'ISO Control' when its changing
The current code always writes to the 'ISO Control' register when the
RF framing is set.  That's not necessary since the register's value
doesn't always change. Instead, only write to it when its value is
actually being changed.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:27 +02:00
Mark A. Greer 4dd836e46c NFC: trf7970a: Reset FIFO when 'End of TX' Interrupt Occurs
Sometimes after sending a frame there is tx data leftover in the FIFO
which the driver will think is part of the receive frame. That data can
be cleared when an 'End of TX' interrupt is received by issuing the
'FIFO Reset' command.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:27 +02:00
Mark A. Greer b887eb09d3 NFC: trf7970a: Clear 'NFC Target Detection Level' register
Due to a trf7970a erratum, the 'NFC Target Detection Level' register
(0x18) must be cleared after power-up.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:27 +02:00
Mark A. Greer 5876bc75e2 NFC: trf7970a: Only abort a command if one is active
Only initiate the abort command process when there is an active command.
If the abort process were started and there wasn't an active command
then the next command issued by the digital layer would be incorrectly
aborted.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:26 +02:00
Mark A. Greer 5fa3af352b NFC: trf7970a: Increase TRF7970A_WAIT_FOR_RX_DATA_TIMEOUT to 20 ms
After further testing periods of ~16 ms have been observed
between interrupts indicating that there is receive data in
the FIFO.  To accomodate that, increase the time the driver
waits before deciding there is no more data to receive to
20 ms.  The macro that represents that delay is
'TRF7970A_WAIT_FOR_RX_DATA_TIMEOUT'.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:26 +02:00
Clement Perrochaud eda8565af3 NFC: pn544: i2c: Add device-tree (Open Firmware) support to PN544
Add functions to recover hardware resources from the device-tree when not
provided by the platform data.

Signed-off-by: Clément Perrochaud <clement.perrochaud@nxp.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:26 +02:00
Christophe Ricard 58e1e0a920 NFC: st21nfca: Implement load_session HCI hook
This implementation rely on the ST21NFCA_DEVICE_MGNT_GATE and
ST21NFCA_DM_GETINFO proprietary gates commands.

First we are retrieving a pipe list available on the CLF with the
ST21NFCA_DM_GETINFO_PIPE_LIST parameter. A gate<->pipe table match
is done with ST21NFCA_DM_GETINFO_PIPE_INFO for each pipe.
If the pipe is created and open, we fill st21nfca_gates table.
If the pipe is create but closed or is not created we keep the gate
with NFC_HCI_INVALID_PIPE.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:26 +02:00
Christophe Ricard 68957303f4 NFC: ST21NFCA: Add driver for STMicroelectronics ST21NFCA NFC Chip
Add driver for STMicroelectronics ST21NFCA NFC controller.
ST21NFCA is using HCI protocol, shdlc as LLC layer & I2C as
communication protocol.

Adding support for Reader/Writer mode with Tag type 1/2/3/4 A & B.
It is using proprietary gate 15 for ISO14443-3 such as type 1 &
type 2 tags. It is using proprietary gate 14 for type F tags.
ST21NFCA_DEVICE_MGNT_GATE gives access to proprietary CLF configuration.
Standard gate for ISO14443-4 A (13) & B (11) are also used.

ST21NFCA specific mecanism:

One particular point to notice for the data handling is that frame
does not contain any length value. Therefore the i2c part of this driver
is managing the reception with a read length sequence until the end of
frame (0x7e) is reached.

In order to avoid conflict between sof & eof a mecanism
called byte stuffing concist of an escape byte (0x7d) insertion before
special byte (0x7e, 0x7d). The special byte is then xored with 0x20.

In this driver, When data are available in the CLF, the interrupt
gpio is driven to active state and triggered an interrupt.
Once the i2c_master_recv start, the interrupt gpio is driven to idle
state until its complete. If the frame is incomplete or data are still
available, interrupts will be triggered again.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-04-22 00:37:25 +02:00
Mark A. Greer 9d9304b321 NFC: trf7970a: Add ISO/IEC 15693 and Type 5 tag Support
Add support for ISO/IEC 15693 RF technology and Type 5 tags.
Note that Type 5 tags used to be referred to as Type V tags.

CC: Erick Macias <emacias@ti.com>
CC: Felipe Balbi <balbi@ti.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-03-11 00:47:09 +01:00
Mark A. Greer 8006289108 NFC: trf7970a: Add support for Type 4A Tags
Add support for Type 4A Tags which includes
supporting the underlying ISO/IEC 14443-A
protocol.

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-03-11 00:47:08 +01:00
Mark A. Greer 165063f1da NFC: trf7970a: Add driver with ISO/IEC 14443 Type 2 Tag Support
Add a driver for the Texas Instruments TRF7970a RFID/NFC/15693
transceiver.  The driver currently supports ISO/IEC 14443 Type 2
tags only (MIFARE Ultralight and Ultralight C but not Classic).

CC: Erick Macias <emacias@ti.com>
CC: Felipe Balbi <balbi@ti.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-03-11 00:46:55 +01:00
Axel Lin 99968e0616 NFC: pn533: Convert to use USB_DEVICE macro
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-02-23 23:32:18 +01:00
Axel Lin 4aa7ed02f5 NFC: port100: Convert to use USB_DEVICE macro
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-02-23 23:32:18 +01:00
Thierry Escande 2a26f9a2c1 NFC: port100: Add support for type 4A tag platform
This adds support for ISO-DEP protocol over NFC-A rf technology. The
port100 already supports NFC-A and ATS request and response for type 4A
tags are handled at digital level. This patch adds NFC_PROTO_ISO14443
to the supported protocols and an entry for framing configuration which
is the same as NFC-A standard frame with CRC handling.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-02-16 23:49:54 +01:00
Thierry Escande d3815ea95c NFC: port100: Fix possible buffer overflow
The arrays for protocols and rf techs must define a number of entries
corresponding to their maximum possible index values.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-02-16 23:49:54 +01:00
Arron Wang f1dd56fdc4 NFC: pn544: i2c: Support PN544 C3 secure firmware download
PN544 C3 firmwares already contain the command frames to be sent, but as
they may exceed the i2c maximum payload, we need to fragment them into
secure chunks and send them through the secure write command.

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
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
Amitkumar Karwar bb55dc2ae4 NFC: nfcmrvl: Fix possible memory leak issue
This patch fixes memory leaks in the error paths of
nfcmrvl_nci_register_dev() routine.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-01-09 01:27:20 +01:00
Amitkumar Karwar 15203b4c79 NFC: nfcmrvl: Add setup handler
Marvell nfc device provides support for external coexistance
control. It allows Device Host to inhibit the NFCC from polling
when required by asserting a GPIO pin. A second pin allows the
DH to have feedback on the current NFCC state.

The required configuration for this feature is done in setup
handler.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-01-07 01:32:41 +01:00
Amitkumar Karwar f26e30cc6b NFC: nfcmrvl: Initial commit for Marvell NFC driver
This patch adds NFC support for Marvell 8897 NFC-over-USB chipset.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-01-07 01:32:40 +01:00
Alexey Khoroshilov c36aeba8c0 NFC: port100: Fix device leak
port100_probe() calls usb_get_dev(), but there is no usb_put_dev()
in port100_disconnect(). The patch adds one.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-01-05 00:49:00 +01:00
Samuel Ortiz ea87a5efa9 NFC: pn533: Frame is invalid if ccid.datalen is 0
Some ACR122 firmwares seem to send 0 length data frames. Before using
that length as a data index, we check that it's not 0. If it is we
report the frame as being invalid.

Reported-by: Arthur Taylor <arthur@advancedtelematic.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-01-04 03:32:27 +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
Salil Kapur fe0219cc50 NFC: mei_phy: Using kfree_skb() instead of kfree()
Using kfree_skb() instead of kfree() for struct sk_buff

Signed-off-by: Salil Kapur <salilkapur93@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2014-01-04 03:32:26 +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
Thierry Escande 7227c0216d NFC: port100: Add target mode support
This implements the target NFC digital operations tg_configure_hw(),
tg_listen(), tg_listen_mdaa(), and tg_send_cmd().

The target mode supports NFC-A technology at 106kbits/s and NFC-F
technologies at 212 and 424kbits/s.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Cc: Stephen Tiedemann <stephen.tiedemann@gmail.com>
Tested-by: Cho, Yu-Chen <acho@suse.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-10-07 14:11:20 +02:00
Thierry Escande 9f7b57f28c NFC: port100: Add initiator mode support
This patch implements the initiator NFC operations in_configure_hw()
and in_send_cmd(). It also implements the switch_rf() operation.

The initiator mode supports NFC-A technology at 106kbits/s and NFC-F
technologies at 212 and 424kbits/s.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Cc: Stephen Tiedemann <stephen.tiedemann@gmail.com>
Tested-by: Cho, Yu-Chen <acho@suse.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-10-07 14:11:14 +02:00
Thierry Escande 0347a6ab30 NFC: port100: Commands mechanism implementation
This patch implements the command handling mechanism. The digital stack
serializes all commands sent to the driver. This means that the digital
stack waits for the reply of the current command before sending a new
one. So there is no command queue managed at driver level.

All Port-100 commands are asynchronous. If the command has been sent
successfully to the device, it replies with an ACK frame. Then the
command response is received (or actually no-response in case of
timeout or error) and a command complete work on the system workqueue
is responsible for sending the response (or the error) back to the
digital stack.

The digital stack requires some commands to be synchronous, mainly
hardware configuration ones. These commands use the asynchronous
command path but are made synchronous by using a completion object.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Cc: Stephen Tiedemann <stephen.tiedemann@gmail.com>
Tested-by: Cho, Yu-Chen <acho@suse.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-10-07 14:10:52 +02:00
Thierry Escande 562d4d59b8 NFC: Sony Port-100 Series driver
This adds support for the Sony NFC USB dongle RC-S380, based on the
Port-100 chip. This dongle is an analog frontend and does not implement
the digital layer. This driver uses the nfc_digital module which is an
implementation of the NFC Digital Protocol stack.

This patch is a skeleton. It only registers the dongle against the NFC
digital protocol stack. All NFC digital operation functions are stubbed
out.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Cc: Stephen Tiedemann <stephen.tiedemann@gmail.com>
Tested-by: Cho, Yu-Chen <acho@suse.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-10-07 14:09:33 +02:00
Olivier Guiter 93ad42020c NFC: pn533: Target mode Tx fragmentation support
In target mode, when we want to send frames larger than the max length
(PN533_CMD_DATAEXCH_DATA_MAXLEN), we have to split the frame in smaller
chunks and send them, using a specific working queue, with the TgSetMetaData
command. TgSetMetaData sets his own MI bit in the PFB.
The last chunk is sent using the TgSetData command.

Signed-off-by: Olivier Guiter <olivier.guiter@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-09-25 16:02:24 +02:00
Olivier Guiter 3c13b244de NFC: pn533: Add support for incoming fragmented frame in target mode
This code processes, for Target Mode, incoming fragmented frames.
If the MI bit is present, we start a working queue to grab and aggregate
all the parts (using TmGetData between each parts). On the last one, as
there's no more MI bit, we jump on the usual behavior.

Signed-off-by: Olivier Guiter <olivier.guiter@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-09-25 16:01:41 +02:00
Olivier Guiter 22953f9329 NFC: pn533: Add MI/TG bits only when in Initiator mode
The fragmentation routine (used to split big frames) could be used in
target or initiator mode (TgSetMetaData vs InDataExchange), but the
MI/TG bytes are not needed in target mode (TgSetMetaData), so we
add a check on the mode

Signed-off-by: Olivier Guiter <olivier.guiter@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-09-25 16:01:03 +02:00
Sachin Kamat e44666b981 NFC: pn533: Staticize local symbols
Local symbols used only in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-09-25 02:02:39 +02:00
Sachin Kamat 4b7449cdf4 NFC: nfcwilink: Remove redundant dev_set_drvdata
Driver core sets driver data to NULL upon failure or remove.

Cc: Ilan Elias <ilane@ti.com>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-09-25 02:02:37 +02:00
Samuel Ortiz cec4b8edc9 NFC: pn533: Start listen timer from start_poll
If we start the polling loop from a listening cycle, we need to start
the corresponding timer as well.
This bug showed up after commit dfccd0f5 as it was impossible to start
from a listening cycle before it.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-09-25 01:35:41 +02:00
Samuel Ortiz 673088fb42 NFC: pn533: Send ATR_REQ directly for active device detection
In order to improve active devices detection, we send an ATR_REQ between
each passive detection cycle. Without this algorithm, Android 4.3 based
devices running the Broadcom stack are hardly detected.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-09-25 01:35:41 +02:00
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
Joe Perches 073a625f0b NFC: Convert nfc_dev_info and nfc_dev_err to nfc_<level>
Use a more standard kernel style macro logging name.

Standardize the spacing of the "NFC: " prefix.
Add \n to uses, remove from macro.
Fix the defective uses that already had a \n.

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
Joe Perches b48348395f NFC: Replace nfc_dev_dbg with dev_dbg
Use the generic kernel function instead of a home-grown
one that does the same thing.

Add \n to uses not at the macro.  Don't add \n where
the nfc_dev_dbg macro mistakenly had them already.

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 06c660340f NFC: pn544: i2c: Add firmware download implementation for pn544
The pn544 can enter a firmware update mode where firmware blobs can be
pushed through the i2c line and flashed on the target.
A special command allows to verify that blobs are correctly flashed and
this is what we do for every downloaded firmware blob.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 01:13:35 +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 dfccd0f580 NFC: pn533: Add some polling entropy
By not always starting the polling loop from the same modulation, we
avoid entering infinite loops where devices exporting 2 targets (on 2
different modulations) get the same target activated over and over.
If this target is not readable (e.g. a wallet emulating a tag), we will
stay in an error loop for ever.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:19 +02:00
Samuel Ortiz 46f793b041 NFC: pn533: Add delay between each poll frame
It seems that some pn533 firmwares go belly up when being asked to send
poll frames too frequently. Adding a 10ms delay between each of them
calm the chip down and prevent it from crashing.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:19 +02:00
Olivier Guiter 56a63c82cf NFC: pn533: Store the correct frame size (normal vs ext)
The extended information frame are sent by PN533 to exchange frames
larger than 255 bytes. These extended frame are very close from the
standard ones except for the header size length. On each incoming
frame, we set the correct header length, and we do that only for the
standard pn533 chipsets as the acr122 does not seem to support extended
frames properly.

Signed-off-by: Olivier Guiter <olivier.guiter@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:18 +02:00
Olivier Guiter 963a82e07d NFC: pn533: Split large Tx frames in chunks
On sending large frames (size > 262), we split it in multiple chunks and
send them asynchronously with MI bit.

Signed-off-by: Olivier Guiter <olivier.guiter@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:18 +02:00
Olivier Guiter 1575b9d866 NFC: pn533: Add extended information frame decoding support
Extended Information frames are slightly different from standard frames
as they can (theorically) handle datas up tu 64kB. PN533 firmware only
supports packet data up to 265 (incl. TFI byte)
This kind of frame are used when the pn533 wants to exchange more than
255 bytes, and this patch handles the reception of such frames.

Signed-off-by: Olivier Guiter <olivier.guiter@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:18 +02:00
Samuel Ortiz 3a8eab39ac NFC: pn533: Enable AUTO RFCA
The AUTO RFCA bit forbids the pn533 chipset to turn its radio on
whenever an external field is present.
Without this bit set, some devices seems to get over flood by the
pn533 rf field and thus become hardly detectable.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:18 +02:00
Samuel Ortiz 5eef484561 NFC: pn533: Unconditionaly select the highest p2p bit rate
p2p devices must be able to support 424 kbps, so we should always select
that bitrate in initiator mode.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:18 +02:00
Samuel Ortiz a94e10f7d7 NFC: pn533: Request System code from SENSF_REQ
Some devices are getting confused when not being asked for their system
code with type F.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:17 +02:00
Samuel Ortiz 17e9d9d437 NFC: pn533: Fix the pn533 polling loop
By turning the radio off after each failed polling try, we dramatically
improve the pn533 polling loop efficiency.
Without this fix, all Android phones running the broadcom NFC stack are
almost never detected.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:17 +02:00
Samuel Ortiz f1abed171f NFC: pn533: Fix hardware busy loop when establishing the LLCP link
By using the standard setting for the regular pn533 dongles, we no
longer wait for ever for an ATR_RES. Without this, a failing ATR_REQ
will put the hardware into a busy loop, constantly waiting for an
ATR_RES.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:35:17 +02:00
Thierry Escande 40dac370ef NFC: Fix missing static declarations
This patch fixes 3 sparse warnings:
nfcsim.c:63:25: sparse: symbol 'wq' was not declared.
nfcsim.c:484:12: sparse: symbol 'nfcsim_init' was not declared.
nfcsim.c:525:13: sparse: symbol 'nfcsim_exit' was not declared.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-14 00:28:16 +02:00
Linus Torvalds 496322bc91 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
 "This is a re-do of the net-next pull request for the current merge
  window.  The only difference from the one I made the other day is that
  this has Eliezer's interface renames and the timeout handling changes
  made based upon your feedback, as well as a few bug fixes that have
  trickeled in.

  Highlights:

   1) Low latency device polling, eliminating the cost of interrupt
      handling and context switches.  Allows direct polling of a network
      device from socket operations, such as recvmsg() and poll().

      Currently ixgbe, mlx4, and bnx2x support this feature.

      Full high level description, performance numbers, and design in
      commit 0a4db187a9 ("Merge branch 'll_poll'")

      From Eliezer Tamir.

   2) With the routing cache removed, ip_check_mc_rcu() gets exercised
      more than ever before in the case where we have lots of multicast
      addresses.  Use a hash table instead of a simple linked list, from
      Eric Dumazet.

   3) Add driver for Atheros CQA98xx 802.11ac wireless devices, from
      Bartosz Markowski, Janusz Dziedzic, Kalle Valo, Marek Kwaczynski,
      Marek Puzyniak, Michal Kazior, and Sujith Manoharan.

   4) Support reporting the TUN device persist flag to userspace, from
      Pavel Emelyanov.

   5) Allow controlling network device VF link state using netlink, from
      Rony Efraim.

   6) Support GRE tunneling in openvswitch, from Pravin B Shelar.

   7) Adjust SOCK_MIN_RCVBUF and SOCK_MIN_SNDBUF for modern times, from
      Daniel Borkmann and Eric Dumazet.

   8) Allow controlling of TCP quickack behavior on a per-route basis,
      from Cong Wang.

   9) Several bug fixes and improvements to vxlan from Stephen
      Hemminger, Pravin B Shelar, and Mike Rapoport.  In particular,
      support receiving on multiple UDP ports.

  10) Major cleanups, particular in the area of debugging and cookie
      lifetime handline, to the SCTP protocol code.  From Daniel
      Borkmann.

  11) Allow packets to cross network namespaces when traversing tunnel
      devices.  From Nicolas Dichtel.

  12) Allow monitoring netlink traffic via AF_PACKET sockets, in a
      manner akin to how we monitor real network traffic via ptype_all.
      From Daniel Borkmann.

  13) Several bug fixes and improvements for the new alx device driver,
      from Johannes Berg.

  14) Fix scalability issues in the netem packet scheduler's time queue,
      by using an rbtree.  From Eric Dumazet.

  15) Several bug fixes in TCP loss recovery handling, from Yuchung
      Cheng.

  16) Add support for GSO segmentation of MPLS packets, from Simon
      Horman.

  17) Make network notifiers have a real data type for the opaque
      pointer that's passed into them.  Use this to properly handle
      network device flag changes in arp_netdev_event().  From Jiri
      Pirko and Timo Teräs.

  18) Convert several drivers over to module_pci_driver(), from Peter
      Huewe.

  19) tcp_fixup_rcvbuf() can loop 500 times over loopback, just use a
      O(1) calculation instead.  From Eric Dumazet.

  20) Support setting of explicit tunnel peer addresses in ipv6, just
      like ipv4.  From Nicolas Dichtel.

  21) Protect x86 BPF JIT against spraying attacks, from Eric Dumazet.

  22) Prevent a single high rate flow from overruning an individual cpu
      during RX packet processing via selective flow shedding.  From
      Willem de Bruijn.

  23) Don't use spinlocks in TCP md5 signing fast paths, from Eric
      Dumazet.

  24) Don't just drop GSO packets which are above the TBF scheduler's
      burst limit, chop them up so they are in-bounds instead.  Also
      from Eric Dumazet.

  25) VLAN offloads are missed when configured on top of a bridge, fix
      from Vlad Yasevich.

  26) Support IPV6 in ping sockets.  From Lorenzo Colitti.

  27) Receive flow steering targets should be updated at poll() time
      too, from David Majnemer.

  28) Fix several corner case regressions in PMTU/redirect handling due
      to the routing cache removal, from Timo Teräs.

  29) We have to be mindful of ipv4 mapped ipv6 sockets in
      upd_v6_push_pending_frames().  From Hannes Frederic Sowa.

  30) Fix L2TP sequence number handling bugs, from James Chapman."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1214 commits)
  drivers/net: caif: fix wrong rtnl_is_locked() usage
  drivers/net: enic: release rtnl_lock on error-path
  vhost-net: fix use-after-free in vhost_net_flush
  net: mv643xx_eth: do not use port number as platform device id
  net: sctp: confirm route during forward progress
  virtio_net: fix race in RX VQ processing
  virtio: support unlocked queue poll
  net/cadence/macb: fix bug/typo in extracting gem_irq_read_clear bit
  Documentation: Fix references to defunct linux-net@vger.kernel.org
  net/fs: change busy poll time accounting
  net: rename low latency sockets functions to busy poll
  bridge: fix some kernel warning in multicast timer
  sfc: Fix memory leak when discarding scattered packets
  sit: fix tunnel update via netlink
  dt:net:stmmac: Add dt specific phy reset callback support.
  dt:net:stmmac: Add support to dwmac version 3.610 and 3.710
  dt:net:stmmac: Allocate platform data only if its NULL.
  net:stmmac: fix memleak in the open method
  ipv6: rt6_check_neigh should successfully verify neigh if no NUD information are available
  net: ipv6: fix wrong ping_v6_sendmsg return value
  ...
2013-07-09 18:24:39 -07:00
Linus Torvalds 80cc38b163 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina:
 "The usual stuff from trivial tree"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (34 commits)
  treewide: relase -> release
  Documentation/cgroups/memory.txt: fix stat file documentation
  sysctl/net.txt: delete reference to obsolete 2.4.x kernel
  spinlock_api_smp.h: fix preprocessor comments
  treewide: Fix typo in printk
  doc: device tree: clarify stuff in usage-model.txt.
  open firmware: "/aliasas" -> "/aliases"
  md: bcache: Fixed a typo with the word 'arithmetic'
  irq/generic-chip: fix a few kernel-doc entries
  frv: Convert use of typedef ctl_table to struct ctl_table
  sgi: xpc: Convert use of typedef ctl_table to struct ctl_table
  doc: clk: Fix incorrect wording
  Documentation/arm/IXP4xx fix a typo
  Documentation/networking/ieee802154 fix a typo
  Documentation/DocBook/media/v4l fix a typo
  Documentation/video4linux/si476x.txt fix a typo
  Documentation/virtual/kvm/api.txt fix a typo
  Documentation/early-userspace/README fix a typo
  Documentation/video4linux/soc-camera.txt fix a typo
  lguest: fix CONFIG_PAE -> CONFIG_x86_PAE in comment
  ...
2013-07-04 11:40:58 -07:00
Valentin Ilie bda7eb2763 NFC: mei_phy: Clean up file
Fix checkpatch warnings.
Replace __attribute__((__packed__)) with __packed.
Replace spaces with tabs.

Signed-off-by: Valentin Ilie <valentin.ilie@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-14 13:45:11 +02:00
Thierry Escande 7cbe0ff3e4 NFC: Add a nfc hardware simulation driver
This driver declares two virtual NFC devices supporting NFC-DEP protocol.
An LLCP connection can be established between them and all packets sent
from one device is sent back to the other, acting as loopback devices.

Once established, the LLCP link can be disconnected by disabling the target
device (with rfkill, nfctool, or neard disable-adapter test script).

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-14 13:45:06 +02:00
Olivier Guiter 86eca4e71f NFC: pn533: Fix ACR122 related debug output
Instead of dumping ACR122 frames as errors, we use the print_hex_dump()
dynamic debug APIs.
We also print an accurate IC version, as the ACR122 is pn532 based.

Signed-off-by: Olivier Guiter <olivier.guiter@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-14 13:45:03 +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
Samuel Ortiz 322bce957e NFC: pn533: Copy NFCID2 through ATR_REQ
When using NFC-F we should copy the NFCID2 buffer that we got from
SENSF_RES through the ATR_REQ NFCID3 buffer. Not doing so violates
NFC Forum digital requirement #189.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-14 13:44:18 +02:00
Samuel Ortiz 31c44464ac NFC: pn533: Use 0x3 for SENSF_REQ Time Slot Number (TSN)
LLCP validation requires TSN to be 0x03 for type F.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-14 13:44:17 +02:00
Frederic Danis 1095e69f47 NFC: NCI: Fix skb->dev usage
skb->dev is used for carrying a net_device pointer and not
an nci_dev pointer.

Remove usage of skb-dev to carry nci_dev and replace it by parameter
in nci_recv_frame(), nci_send_frame() and driver send() functions.

NfcWilink driver is also updated to use those functions.

Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-14 00:25:53 +02:00
Wei Yongjun 4674d0fecb NFC: pn533: Fix error return code in pn533_probe()
Fix to return -ENOMEM in the nfc device alloc error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-06-14 00:18:58 +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
Masanari Iida 8b513d0cf6 treewide: Fix typo in printk
Correct spelling typo in various part of drivers

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-05-28 12:02:13 +02:00
Samuel Ortiz e3a6b14ced NFC: mei: Do not disable MEI devices from their remove routine
Enabling and disabling device is exclusively handled by the mei_phy_ops.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-05-21 10:48:41 +02:00
Samuel Ortiz 73f3adb9b9 NFC: mei_phy: Register event callback when enabling the device
The callback registration starts a waiting read, so it needs to be fired
everytime the device is enabled. Otherwise following writes will never get
an answer back.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-05-21 10:48:40 +02:00
Samuel Ortiz d999e4db0a NFC: mei_phy depends on INTEL_MEI
INTEL_MEI_BUS_NFC never made it upstream, so make it depend on INTEL_MEI.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-05-21 10:48:40 +02:00
Samuel Ortiz bb03dceb83 NFC: pn544: Add MEI physical layer
With the new mei_phy NFC driver API, the pn544 MEI physical layer is
minimal and similar to the microread one.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-16 00:39:41 +02:00
Eric Lapuyade 4912e2fe74 NFC: mei: Add a common mei bus API for NFC drivers
This isolates the common code that is required to use an mei bus nfc
device from an NFC HCI drivers. This prepares for future drivers for
NFC chips connected behind an Intel Management Engine controller.
The microread_mei HCI driver is also modified to use that common code.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-16 00:39:31 +02:00
Samuel Ortiz 60d9edd50b NFC: pn533: Turn radio on and off when bringing the device up and down
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:11 +02:00
Marina Makienko 7c5a54fb86 NFC: pn533: Add missing usb_put_dev
Add missing usb_put_dev on failure path in pn533_probe().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Marina Makienko <makienko@ispras.ru>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:10 +02:00
Waldemar Rymarkiewicz 495af72e14 NFC: pn533: Increase version number
Major features added in 0.2 version:

* frame ops added to support wider set of devices
* support of ACS ACR122U

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:08 +02:00
Waldemar Rymarkiewicz 96aac226a4 NFC: pn533: Remove unused pn533_cmd_complete_t
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:08 +02:00
Waldemar Rymarkiewicz 10cff29af6 NFC: pn533: Add pn533_abort_cmd procedure
pn533_abort_cmd() aborts last command sent to the controller
and cancels already requested urb.

As ACR122U does not support any mechanism (as ACK for standard
PN533) which aborts last command this cannot be issued for this
device. Otherwise, acr122u will behave in an unstable way.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:07 +02:00
Waldemar Rymarkiewicz 53cf48399a NFC: pn533: Add support for ACS ACR122U reader
ACS ACR122U is an USB NFC reader, PC/SC and CCID compilant, based
on NXP PN532 chip.

Internally, it's build of MCU, PN532 and an antenna. MCU makes the
device CCID and PC/SC compilant and provide USB connection.

In this achitecture, a host cannot talk directly to PN532 and must
rely on MCU. Luckily, MCU exposes pseud-APDU through PC/SC Escape
mechanism which let the host to transmit standard PN532 commands
directly to PN532 chip with some limitations.

The frame roughly looks like:

    CCID header    |          APDU header           |    PN532 header
(pc_to_rdr_escape) |  (pseudo apdu Direct Tramsmit) | (len, TFI, cmd, params)

Accordign to limitations, ACR122U does't provide any mechanism to
abort last issued command.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:07 +02:00
Waldemar Rymarkiewicz 58520373d8 NFC: pn533: Add protocol type for frame ops
As not all devices require ACK confirmation of every request sent to the
controller, differentiate two protocol types.

First one, request-ack-response and the second one request-response type.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:06 +02:00
Waldemar Rymarkiewicz f87bc9fb62 NFC: pn533: Move wq_in_error to cmd context
Rename 'wq_in_error' field to more relevant 'status'
and move it to cmd context struct.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:06 +02:00
Waldemar Rymarkiewicz d5590bba37 NFC: pn533: Re-group fields in struct pn533
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:05 +02:00
Waldemar Rymarkiewicz c79490e1b5 NFC: pn533: Avoid function declarations
Reorder code to avoid functions declaration.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:05 +02:00
Waldemar Rymarkiewicz ddf19d206f NFC: pn533: Simplify __pn533_send_frame_async
In all cases (send_cmd_async, send_data_async and send_sync)
pn533_send_async_complete() handles all responses internally,
so there is no need to pass this as a callback.

Cmd context is passed to __pn533_send_frame_async in all the
cases as well. It's already kept in struct pn533 which is
available all the time the device is attached. So we can make
use of it instead.

Therefore, cmd_complete and cmd_complete_arg are no needed any more.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:04 +02:00
Waldemar Rymarkiewicz 140ef7f6b0 NFC: pn533: Fix incorrect kfree of complete args
We must free 'cmd_complete_mi_arg' and not 'cmd_complete_arg'
when getting send error handling fragmented response.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:04 +02:00
Waldemar Rymarkiewicz 4b2a953276 NFC: pn533: Remove redundant cmd_ prefix in the struct
'cmd->code' looks better then 'cmd->cmd_code'

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:03 +02:00
Waldemar Rymarkiewicz 2c206fb7fe NFC: pn533: Keep cmd context in pn533 struct
Keep cmd context in pn533 struct instead of only cmd code.
The context already includes cmd_code.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:03 +02:00
Waldemar Rymarkiewicz 4231604b3e NFC: pn533: Optimise issued cmd context tracking
Use struct pn533_cmd instead of pn533_send_async_complete_arg
to track the context of the issued cmd.

This way pn533_send_async_complete_arg struct is no needed
anymore. Just move issuer complete callback to pn533_cmd struct.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:02 +02:00
Waldemar Rymarkiewicz 0ce1fbdd60 NFC: pn533: Fix memleak while scheduling next cmd
In case of error from __pn533_send_frame_async() while sending
next cmd from the queue (cmd_wq), cmd->req, cmd->resp and
cmd->arg pointers won't be freed.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:02 +02:00
Waldemar Rymarkiewicz f75c291361 NFC: pn533: Rename pn533_fw_reset appropriately
Define explicitely it is Pasori specific reset command.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:01 +02:00
Waldemar Rymarkiewicz e70b96e95b NFC: pn533: Update copyrights note
Remove duplicated authors info from the header as well.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:01 +02:00
Waldemar Rymarkiewicz 95cb9e1023 NFC: pn533: Fix div by zero while stopping polling
Depends on timing division by zero can happen when user stops
polling.

pn533_stop_poll() resets modulation counter on stop_poll, but
meanwhile we get response for last poll request and try, despite
of stop poll request, to schedule next modulation for polling.

Log message:
[345.922515] pn533 1-1.3:1.0: pn533_stop_poll
[345.928314] pn533 1-1.3:1.0: pn533_send_ack
[345.932769] pn533 1-1.3:1.0: Received a frame.
[345.937438] PN533 RX: 00 00 ff 03 fd d5 4b 00 e0 00
[345.942840] pn533 1-1.3:1.0: pn533_poll_complete
[345.947753] pn533 1-1.3:1.0: pn533_start_poll_complete
[345.953186] Division by zero in kernel.
[345.957244] [<c001b38c>] (unwind_backtrace+0x0/0xf0)
[345.965698] [<c0260e78>] (Ldiv0+0x8/0x10)
[345.974060] [<c0260e60>] (__aeabi_idivmod+0x8/0x18)
[345.983978] [<c02e0064>] (pn533_poll_complete+0x3c0/0x500)
[345.994903] [<c02df690>] (pn533_send_async_complete+0x7c/0xc0)
[346.005828] [<c02e028c>] (pn533_wq_cmd_complete+0x1c/0x34)
[346.016113] [<c005d134>] (process_one_work+0x1ac/0x57c)
[346.025848] [<c005d85c>] (worker_thread+0x168/0x42c)
[346.034576] [<c00620c0>] (kthread+0xa4/0xb0)

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:00 +02:00
Waldemar Rymarkiewicz a45e1c8d17 NFC: pn533: Print out response status bits in hex
For better debugging as the codes are defined in hex in the spec.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:00 +02:00
Waldemar Rymarkiewicz 63123108f4 NFC: pn533: Reword all std frame logic funct
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:29:00 +02:00
Samuel Ortiz e279f84f30 NFC: pn533: Use dynamic debug for pn533 hex dumps
Those can be very verbose and we only want them when debugging pn533.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11 16:28:56 +02:00
Samuel Ortiz 9593b0b117 NFC: microread: Fix build failure due to a new MEI bus API
uuid device_id field is removed and mei_device is renamed mei_cl_device.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-01 00:52:42 +02:00
John W. Linville 98d5fac233 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
Conflicts:
	drivers/net/wireless/iwlwifi/dvm/tx.c
	drivers/net/wireless/ti/wlcore/sdio.c
	drivers/net/wireless/ti/wlcore/spi.c
2013-02-18 13:47:13 -05:00
Samuel Ortiz cd48d8ba14 NFC: microread: Fix mei physical layer
The MEI bus API changed according to the latest comments from the char-misc
maintainers, and this patch fixes the microread mei physical layer code
according to those changes:
We pass the MEI id back to the probe routine, and the mei_driver takes a
table of MEI ids instead of one static id.
Also, mei_bus_driver got renamed to mei_driver, mei_bus_client to
mei_device, and mei_bus_set/get_clientdata to mei_set/get_clientdata.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-11 18:35:36 +01:00
Thierry Escande 52f2eaeec1 NFC: pn533: Fix target polling mode
Remove unneeded bitwise OR operator on uninitialized sk_buff data

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-08 12:18:48 +01:00
Samuel Ortiz e0af11fa0d NFC: microread: Add MEI physical layer
On some peculiar worlds, microreads are found hidden behind MEIs and needs
to be accessed through the ME bus.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-08 12:18:32 +01:00
Samuel Ortiz 71054c7db1 NFC: microread: Add i2c physical layer
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-03 20:37:48 +01:00
Eric Lapuyade cfad1ba871 NFC: Initial support for Inside Secure microread
Inside Secure microread is an HCI based NFC chipset.
This initial support includes reader and p2p (Target and initiator) modes.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-03 20:37:42 +01:00
Waldemar Rymarkiewicz 2323e6fc62 nfc: pn533: Remove unreachable code
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-29 18:06:12 +01:00
Waldemar Rymarkiewicz ef3d56e189 nfc: pn533: Use static poll_mod and std_frame_ops
These variables are not exported.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-29 18:06:12 +01:00
John W. Linville 4205e6ef4e Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem 2013-01-28 14:43:00 -05:00
Thierry Escande 858ce02209 NFC: pn533: Fix bad allocation size
Use dereferenced pointer in sizeof instead of pointer itself.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-13 23:22:09 +01:00
Waldemar Rymarkiewicz 8a0ecfe74b NFC: pn533: Fix missing parenthesis
This is a quite critical patch as it fixes potential reference to
undefined general_bytes which were never set correctly on target
activation due to missing parenthesis.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10 00:51:55 +01:00
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