Commit Graph

51 Commits

Author SHA1 Message Date
Christophe Ricard
3aacd7fe55 nfc: st-nci: Move loopback usage from HCI to NCI
NCI provides possible way to run loopback testing has done over HCI.

For us it offers many advantages:
- It simplifies the code: No more need for a vendor_cmds structure
- Loopback over HCI may not be supported in future st-nci firmware

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2016-05-04 01:51:42 +02:00
Christophe Ricard
9b8d1a4cf2 nfc: nci: Add an additional parameter to identify a connection id
According to NCI specification, destination type and destination
specific parameters shall uniquely identify a single destination
for the Logical Connection.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2016-05-04 01:43:21 +02:00
Christophe Ricard
c50e8fef7b nfc: st-nci: Remove redundant ST_NCI_HCI_HOST_ID_ESE from st-nci.h
ST_NCI_HCI_HOST_ID_ESE is already having an equivalent in se.c
(ST_NCI_ESE_HOST_ID).

Remove and replace where relevant.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2016-05-04 01:39:36 +02:00
Christophe Ricard
1f34b20404 NFC: st-nci: spi: Drop two useless checks in ACPI probe path
When st_nci_spi_acpi_request_resources() gets called we
already know that the entries in ->acpi_match_table have
matched ACPI ID of the device.
In addition spi_device pointer cannot be NULL in any case
(otherwise SPI core would not call ->probe() for the driver
in the first place).

Drop the two useless checks from the driver.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2016-05-04 01:38:13 +02:00
Christophe Ricard
4ac52a0fd0 NFC: st-nci: i2c: Drop two useless checks in ACPI probe path
When st_nci_i2c_acpi_request_resources() gets called we already
know that the entries in ->acpi_match_table have matched ACPI ID
of the device.
In addition I2C client pointer cannot be NULL in any case
(otherwise I2C core would not call ->probe() for the driver in
the first place).

Drop the two useless checks from the driver.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2016-05-04 01:37:13 +02:00
Christophe Ricard
0209e79d54 nfc: st-nci: A APDU_READER_GATE pipe is unexpected on a UICC
An APDU_READER_GATE pipe is not expected on a UICC. Be more
explicit so that an other secure element form factor (SD card)
does not prompt this message.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2016-05-04 01:33:08 +02:00
Christophe Ricard
cde4856e61 nfc: st-nci: Simplify white list building
Simplify white list Building

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2016-05-04 01:32:25 +02:00
Christophe Ricard
27420fec40 nfc: st-nci: set is_ese_present and is_uicc_present properly
When they're present, set is_ese_present and set is_uicc_present
to the value describe in their package description.

So far is_ese_present and is_uicc_present was set to true if their
property was present.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2016-05-04 01:31:07 +02:00
Christophe Ricard
de72dbc52c nfc: st-nci: spi: Change ST_NCI_GPIO_NAME_RESET to match DT
Since
commit 10cf4899f8 ("gpiolib: tighten up ACPI legacy gpio lookups")

If _DSD properties are available in an ACPI node, we are not
allowed to fallback to _CRS data to retrieve gpio properties.
This was causing us to fail if uicc-present and/or ese-present
are defined.

To be consistent with devicetree change ST_NCI_GPIO_NAME_RESET
content to reset so that acpi_find_gpio in drivers/gpio/gpiolib.c
will look for reset-gpios. In the mean time the ACPI table needs
to be fixed as follow (Tested on Minnowboard Max):

Device (NFC1)
{
    Name (_ADR, Zero)  // _ADR: Address
    Name (_HID, "SMO2101")  // _HID: Hardware ID
    Name (_CID, "SMO2101")  // _CID: Compatible ID
    Name (_DDN, "SMO NFC")  // _DDN: DOS Device Name
    Name (_UID, One)  // _UID: Unique ID
    Method (_CRS, 0, NotSerialized)  // _CRS: Current Resource Settings
    {
        Name (SBUF, ResourceTemplate ()
        {
             SpiSerialBus (0, PolarityLow, FourWireMode, 8,
                           ControllerInitiated, 4000000, ClockPolarityLow,
                           ClockPhaseFirst, "\\_SB.SPI1",
                           0x00, ResourceConsumer, ,)
             GpioInt (Edge, ActiveHigh, ExclusiveAndWake, PullNone, 0x0000,
                      "\\_SB.GPO2", 0x00, ResourceConsumer, ,)
             {   // Pin list
                 0x0001
             }
             GpioIo (Exclusive, PullDefault, 0x0000, 0x0000, IoRestrictionOutputOnly,
                     "\\_SB.GPO2", 0x00, ResourceConsumer, ,)
             {   // Pin list
                 0x0002,
             }
        })
        Name (_DSD, Package (0x02)
        {
             ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301") /* Device Properties for _DSD */,
             Package (0x03)
             {
                 Package (0x02) { "uicc-present", 1 },
                 Package (0x02) { "ese-present", 1 },
                 Package (0x02) { "reset-gpios", Package(0x04) { ^NFC1, 1, 0, 0} },
             }
        })
        Return (SBUF) /* \_SB_.SPI1.NFC1._CRS.SBUF */
    }
    Method (_STA, 0, NotSerialized)  // _STA: Status
    {
        Return (0x0F)
    }
}

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2016-05-04 01:27:24 +02:00
Christophe Ricard
c1fc9136c8 nfc: st-nci: i2c: Change ST_NCI_GPIO_NAME_RESET to match DT
Since
commit 10cf4899f8 ("gpiolib: tighten up ACPI legacy gpio lookups")

If _DSD properties are available in an ACPI node, we are not
allowed to fallback to _CRS data to retrieve gpio properties.
This was causing us to fail if uicc-present and/or ese-present
are defined.

To be consistent with devicetree change ST_NCI_GPIO_NAME_RESET
content to reset so that acpi_find_gpio in drivers/gpio/gpiolib.c
will look for reset-gpios. In the mean time the ACPI table needs
to be fixed as follow:

Device (NFC1)
{
    Name (_ADR, Zero)  // _ADR: Address
    Name (_HID, "SMO2101")  // _HID: Hardware ID
    Name (_CID, "SMO2101")  // _CID: Compatible ID
    Name (_DDN, "SMO NFC")  // _DDN: DOS Device Name
    Name (_UID, One)  // _UID: Unique ID
    Method (_CRS, 0, NotSerialized)  // _CRS: Current Resource Settings
    {
        Name (SBUF, ResourceTemplate ()
        {
             I2cSerialBus (0x0008, ControllerInitiated, 400000,
                           AddressingMode7Bit, "\\_SB.I2C7",
                           0x00, ResourceConsumer, ,)
             GpioInt (Edge, ActiveHigh, ExclusiveAndWake, PullNone, 0x0000,
                      "\\_SB.GPO2", 0x00, ResourceConsumer, ,)
             {   // Pin list
                 0x0001
             }
             GpioIo (Exclusive, PullDefault, 0x0000, 0x0000, IoRestrictionOutputOnly,
                     "\\_SB.GPO2", 0x00, ResourceConsumer, ,)
             {   // Pin list
                 0x0002,
             }
        })
        Name (_DSD, Package (0x02)
        {
             ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301") /* Device Properties for _DSD */,
             Package (0x03)
             {
                 Package (0x02) { "uicc-present", 1 },
                 Package (0x02) { "ese-present", 1 },
                 Package (0x02) { "reset-gpios", Package(0x04) { ^NFC1, 1, 0, 0} },
             }
        })
        Return (SBUF) /* \_SB_.I2C7.NFC1._CRS.SBUF */
    }
    Method (_STA, 0, NotSerialized)  // _STA: Status
    {
        Return (0x0F)
    }
}

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2016-05-04 01:26:44 +02:00
Krzysztof Kozlowski
dfeb87df48 nfc: Drop owner assignment from i2c_driver
i2c_driver does not need to set an owner because i2c_register_driver()
will set it.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2016-05-01 23:38:14 +02:00
Christophe Ricard
25960c2176 nfc: st-nci: Add support for HCI event connectivity
Add support for connectivity event

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-12-29 19:06:20 +01:00
Christophe Ricard
9ba04ebf82 NFC: st-nci: Auto-select core module
The core st-nci module is useless without either the I2C or the
SPI access module. So hide NFC_ST_NCI and select it automatically
if either NFC_ST_NCI_I2C or NFC_ST_NCI_SPI is selected.

This avoids presenting NFC_ST_NCI when neither NFC_ST_NCI_I2C nor
NFC_ST_NCI_SPI can be selected.

Cc: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-12-29 19:06:19 +01:00
Christophe Ricard
ba2c231cbc nfc: st-nci: Code cleanup
A few code cleanups, mostly empty lines removal.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-12-29 19:06:17 +01:00
Christophe Ricard
60cd6d8931 nfc: st-nci: Add support for acpi probing for spi device.
Add support for acpi probing.
SMO2101 is used for st21nfcb

It has been tested with the following acpi node on Minnowboard:
Note: Remove uicc-present or ese-present Package if one of them is not
supported.

Device (NFC1)
{
	Name (_ADR, Zero)  // _ADR: Address
	Name (_HID, "SMO2101")  // _HID: Hardware ID
	Name (_CID, "SMO2101")  // _CID: Compatible ID
	Name (_DDN, "SMO NFC")  // _DDN: DOS Device Name
	Name (_UID, One)  // _UID: Unique ID
	Name (_DSD, Package (0x02)
	{
		/* Device Properties for _DSD */
		ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
		Package (0x02)
		{
			Package (0x02) { "uicc-present", 1 },
			Package (0x02) { "ese-present", 1 }
		}
	})
	Method (_CRS, 0, NotSerialized)  // _CRS: Current Resource Settings
	{
		Name (SBUF, ResourceTemplate ()
		{
			SpiSerialBus (0, PolarityLow, FourWireMode, 8,
				      ControllerInitiated, 4000000, ClockPolarityLow,
				      ClockPhaseFirst, "\\_SB.SPI1",
				      0x00, ResourceConsumer, ,)
			GpioInt (Edge, ActiveHigh, ExclusiveAndWake, PullNone, 0x0000,
				 "\\_SB.GPO2", 0x00, ResourceConsumer, ,)
			{       // Pin list
				0x0001
			}
			GpioIo (Exclusive, PullDefault, 0x0000, 0x0000, IoRestrictionOutputOnly,
				"\\_SB.GPO2", 0x00, ResourceConsumer, ,)
			{       // Pin list
				0x0002,
			}
		})
		Return (SBUF) /* \_SB_.SPI1.NFC1._CRS.SBUF */
	}
	Method (_STA, 0, NotSerialized)  // _STA: Status
	{
		Return (0x0F)
	}
}

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-12-29 19:06:16 +01:00
Christophe Ricard
ed6a2f3fb7 nfc: st-nci: Add support for acpi probing for i2c device.
Add support for acpi probing.
SMO2101 is used for st21nfcb
SMO2102 is used for st21nfcc

It has been tested with the following acpi node on Minnowboard:
Note: Remove uicc-present or ese-present Package if one them is not
supported.

Device (NFC1)
{
	Name (_ADR, Zero)  // _ADR: Address
	Name (_HID, "SMO2101")  // _HID: Hardware ID
	Name (_CID, "SMO2101")  // _CID: Compatible ID
	Name (_DDN, "SMO NFC")  // _DDN: DOS Device Name
	Name (_UID, One)  // _UID: Unique ID
	Name (_DSD, Package (0x02)
	{
		/* Device Properties for _DSD */
		ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
		Package (0x02)
		{
			Package (0x02) { "uicc-present", 1 },
			Package (0x02) { "ese-present", 1 }
		}
	})
	Method (_CRS, 0, NotSerialized)  // _CRS: Current Resource Settings
	{
		Name (SBUF, ResourceTemplate ()
		{
			I2cSerialBus (0x0008, ControllerInitiated, 400000,
				      AddressingMode7Bit, "\\_SB.I2C7",
				      0x00, ResourceConsumer, ,)
			GpioInt (Edge, ActiveHigh, ExclusiveAndWake, PullNone, 0x0000,
				 "\\_SB.GPO2", 0x00, ResourceConsumer, ,)
			{   	// Pin list
				0x0001
			}
			GpioIo (Exclusive, PullDefault, 0x0000, 0x0000, IoRestrictionOutputOnly,
				"\\_SB.GPO2", 0x00, ResourceConsumer, ,)
			{	// Pin list
				0x0002,
			}
		})
		Return (SBUF) /* \_SB_.I2C7.NFC1._CRS.SBUF */
	}

	Method (_STA, 0, NotSerialized)  // _STA: Status
	{
		Return (0x0F)
	}
}

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-12-29 19:06:16 +01:00
Christophe Ricard
4c62c208ab nfc: st-nci: Add macro for gpio name
Add macro definition for each gpio string for an easier code
maintenance.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-12-29 19:06:15 +01:00
Christophe Ricard
3252897f7a nfc: st-nci: Group device table together
Group device table at the same place in order to make the code
easier to read and parse.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-12-29 19:06:14 +01:00
Christophe Ricard
1faa65b0cf nfc: st-nci: Remove unneeded CONFIG_OF switches
DT headers already define NOOP routines when CONFIG_OF is not
defined.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-12-29 19:06:13 +01:00
Christophe Ricard
53eb5252bb nfc: st-nci: Remove useless #include "ndlc.h"
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-12-29 19:06:13 +01:00
Linus Torvalds
75f5db39ff spi: Updates for v4.4
Quite a lot of activity in SPI this cycle, almost all of it in drivers
 with a few minor improvements and tweaks in the core.
 
  - Updates to pxa2xx to support Intel Broxton and multiple chip selects.
  - Support for big endian in the bcm63xx driver.
  - Multiple slave support for the mt8173
  - New driver for the auxiliary SPI controller in bcm2835 SoCs.
  - Support for Layerscale SoCs in the Freescale DSPI driver.
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Merge tag 'spi-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "Quite a lot of activity in SPI this cycle, almost all of it in drivers
  with a few minor improvements and tweaks in the core.

   - Updates to pxa2xx to support Intel Broxton and multiple chip selects.
   - Support for big endian in the bcm63xx driver.
   - Multiple slave support for the mt8173
   - New driver for the auxiliary SPI controller in bcm2835 SoCs.
   - Support for Layerscale SoCs in the Freescale DSPI driver"

* tag 'spi-v4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (87 commits)
  spi: pxa2xx: Rework self-initiated platform data creation for non-ACPI
  spi: pxa2xx: Add support for Intel Broxton
  spi: pxa2xx: Detect number of enabled Intel LPSS SPI chip select signals
  spi: pxa2xx: Add output control for multiple Intel LPSS chip selects
  spi: pxa2xx: Use LPSS prefix for defines that are Intel LPSS specific
  spi: Add DSPI support for layerscape family
  spi: ti-qspi: improve ->remove() callback
  spi/spi-xilinx: Fix race condition on last word read
  spi: Drop owner assignment from spi_drivers
  spi: Add THIS_MODULE to spi_driver in SPI core
  spi: Setup the master controller driver before setting the chipselect
  spi: dw: replace magic constant by DW_SPI_DR
  spi: mediatek: mt8173 spi multiple devices support
  spi: mediatek: handle controller_data in mtk_spi_setup
  spi: mediatek: remove mtk_spi_config
  spi: mediatek: Update document devicetree bindings to support multiple devices
  spi: fix kernel-doc warnings about missing return desc in spi.c
  spi: fix kernel-doc warnings about missing return desc in spi.h
  spi: pxa2xx: Align a few defines
  spi: pxa2xx: Save other reg_cs_ctrl bits when configuring chip select
  ...
2015-11-05 13:15:12 -08:00
Andrew F. Davis
3821a065f5 spi: Drop owner assignment from spi_drivers
An spi_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2015-10-28 10:30:17 +09:00
Christophe Ricard
2b6e5bfed0 NFC: st-nci: Replace st21nfcb by st_nci in makefile
Replace 1 missing st21nfcb by st_nci

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-27 03:55:15 +01:00
Christophe Ricard
bd8f1a31a9 NFC: st-nci: remove duplicated skb dump
Remove SPI_DUMP_SKB and I2C_DUMP_SKB as skb is already dumped
in ndlc layer.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-27 03:55:14 +01:00
Christophe Ricard
bb2496c3ec NFC: st-nci: Disable irq when powering the device up
Upon some conditions (timing, CLF errors, platform errors...), the
irq might be already active when powering the device.

Add irq_active variable as a guard to avoid kernel warning message

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-27 03:55:14 +01:00
Christophe Ricard
064d004796 NFC: st-nci: Add few code style fixes
Add some few code style fixes.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-27 03:55:13 +01:00
Christophe Ricard
4e932acc6f NFC: st-nci: Fix host_list verification after SE activation
A secure element can be activated in different order.
The host_list is updated keeping a fixed order:
	<terminal_host_id><uicc_id><ese_id>.

Cc: stable@vger.kernel.org
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-27 03:55:11 +01:00
Christophe Ricard
06521053a0 NFC: st-nci: Increase delay between 2 secure element activations
After internal discussion, it appears this timing should be
increased to 20 ms for interoperability reason.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-27 03:55:11 +01:00
Christophe Ricard
3648dc6d27 NFC: st-nci: Add ese-present/uicc-present dts properties
In order to align with st21nfca, dts configuration properties
ese_present and uicc_present are made available in st-nci driver.

So far, in early development firmware, because
nci_nfcee_mode_set(DISABLE) was not supported we had to try to
enable it during the secure element discovery phase.

After several trials on commercial and qualified firmware it appears
that nci_nfcee_mode_set(ENABLE) and nci_nfcee_mode_set(DISABLE) are
properly supported.

Such feature also help us to eventually save some time (~5ms) when
only one secure element is connected.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-27 03:55:10 +01:00
Christophe Ricard
2b5dbe089f NFC: st-nci: Add error messages when an unexpected HCI event occurs
Potentially an unexpected HCI event may occur because of a
firmware bug. It could be transparent for the user but we need to
at least log it.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-27 03:55:10 +01:00
Christophe Ricard
b1fa4dc4ff NFC: st-nci: Add support for proprietary commands
Add support for proprietary commands useful mainly for
factory testings. Here is a list:

- FACTORY_MODE: Allow to set the driver into a mode where
  no secure element are activated. It does not consider any
  NFC_ATTR_VENDOR_DATA.
- HCI_CLEAR_ALL_PIPES: Allow to execute a HCI clear all pipes
  command. It does not consider any NFC_ATTR_VENDOR_DATA.
- HCI_DM_PUT_DATA: Allow to configure specific CLF registry
  like for example RF trimmings or low level drivers
  configurations (I2C, SPI, SWP).
- HCI_DM_UPDATE_AID: Allow to configure an AID routing into the
  CLF routing table following RF technology, CLF mode or protocol.
- HCI_DM_GET_INFO: Allow to retrieve CLF information.
- HCI_DM_GET_DATA: Allow to retrieve CLF configurable data such as
  low level drivers configurations or RF trimmings.
- HCI_DM_DIRECT_LOAD: Allow to load a firmware into the CLF.
  A complete packet can be more than 8KB.
- HCI_DM_RESET: Allow to run a CLF reset in order to "commit" CLF
  configuration changes without CLF power off.
- HCI_GET_PARAM: Allow to retrieve an HCI CLF parameter (for example
  the white list).
- HCI_DM_FIELD_GENERATOR: Allow to generate different kind of RF
  technology. When using this command to anti-collision is done.
- HCI_LOOPBACK: Allow to echo a command and test the Dh to CLF
  connectivity.
- HCI_DM_VDC_MEASUREMENT_VALUE: Allow to measure the field applied
  on the CLF antenna. A value between 0 and 0x0f is returned. 0 is
  maximum.
- HCI_DM_FWUPD_START: Allow to put CLF into firmware update mode.
  It is a specific CLF command as there is no GPIO for this.
- HCI_DM_FWUPD_END:  Allow to complete firmware update.
- HCI_DM_VDC_VALUE_COMPARISON: Allow to compare the field applied
  on the CLF antenna to a reference value.
- MANUFACTURER_SPECIFIC: Allow to retrieve manufacturer specific data
  received during a NCI_CORE_INIT_CMD.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-27 03:55:01 +01:00
Christophe Ricard
d3f13c558f NFC: st-nci: Fix st_nci_gates offset
It is useless to start from index 0 when looking for a gate
because only dynamic pipes are retrieved with
ST_NCI_DM_GETINFO(ST_NCI_DM_GETINFO_PIPE_LIST).

The first dynamic pipe is present at index 3.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-26 06:53:17 +01:00
Christophe Ricard
7e35740438 NFC: st-nci: Add support for NCI_HCI_IDENTITY_MGMT_GATE
NCI_HCI_IDENTITY_MGMT_GATE might be useful to get information
about hardware or firmware version.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-26 06:53:16 +01:00
Christophe Ricard
404b3e585b NFC: st-nci: initialize gate_count in st_nci_hci_network_init
When initializing ndev->hci_dev->init_data, only gates field
was set. gate_count needs to be initialized as well.

Cc: stable@vger.kernel.org
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-26 06:53:16 +01:00
Christophe Ricard
22c84c5b23 NFC: st-nci: Keep st_nci_gates unchanged in load_session
We need to keep initial st_nci_gates values in order for
nci_hci_dev_connect_gates to create and open pipe when necessary.

For example after a firmware update CLF pipes are cleared. Changing
pipe values in st_nci_gates was causing nci_hci_dev_connect_gates
not using accurate pipes value.

Cc: stable@vger.kernel.org
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-26 06:53:15 +01:00
Christophe Ricard
9dfe29f179 NFC: st-nci: Open NCI_HCI_LINK_MGMT_PIPE
NCI_HCI_LINK_MGMT_PIPE was never opened in st_nci_hci_load_session.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-26 06:53:14 +01:00
Christophe Ricard
543a0a301f NFC: st-nci: Remove HCI init_data.gates initialization in load_session
ndev->hci_dev->init_data.gates is already initialized in
st_nci_hci_network.

Cc: stable@vger.kernel.org
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-26 06:53:14 +01:00
Christophe Ricard
a1269dd116 NFC: st-nci: Fix incorrect spi buffer size
When sending data over SPI, the maximum expected length is the maximum
nci packet payload + data header size + the frame head room (1 for the
ndlc header) + the frame trail room (0).

Cc: stable@vger.kernel.org
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-26 06:53:06 +01:00
Christophe Ricard
e67e7e596f NFC: st-nci: include st-nci.h instead of ndlc.h
st-nci.h already include ndlc.h.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-26 06:27:59 +01:00
Christophe Ricard
f587662771 NFC: st-nci: Align st-nci driver with other nfc driver
Align st-nci driver with other NFC drivers:
- Remove st-nci_ prefix
- Merge se.h in st-nci.h

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-26 05:55:22 +01:00
Robert Dolca
22e4bd09c4 NFC: nci: rename nci_prop_ops to nci_driver_ops
Initially it was used to create hooks in the driver for
proprietary operations. Currently it is being used for hooks
for both proprietary and generic operations.

Signed-off-by: Robert Dolca <robert.dolca@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-25 20:28:59 +01:00
Samuel Ortiz
dc42143b84 NFC: st-nci: Rename st-nci_se.c
Rename it to se.c to keep the driver files namespace consistent.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-10-25 18:20:03 +01:00
Christophe Ricard
94b85938ad nfc: st-nci: Remove pr_err in rcv_queue when ndlc header is unknown
spi phy needs to use ndlc_recv at every spi transaction causing
"unknown packet control byte" error message each time the header
is 00. Make this silent.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-08-17 01:27:23 +02:00
Christophe Ricard
2bc4d4f8c8 nfc: st-nci: Add spi phy support for st21nfcb
st21nfcb does support another phy than i2c: spi.
st21nfcc does not support spi as the spi ios are used
by the AMS RF booster.

st21nfcb is not following NCI NFC Forum recommendations for spi
but rely on ST prioritary protocol ndlc as for i2c.

Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-08-17 00:35:08 +02:00
Christophe Ricard
8b706884ea nfc: st-nci: Free data with irrelevant NDLC PCB_SYNC value
PCB_SYNC different than PCB_TYPE_SUPERVISOR or PCB_TYPE_DATAFRAME
should be discarded.

Irrelevant data may be forwarded up to the ndlc state machine by
phys like spi to prevent missing potential data during "write"
transactions.

Cc: stable@vger.kernel.org
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-08-17 00:35:08 +02:00
Christophe Ricard
1d816b6eb5 nfc: st-nci: Remove data from ack_pending_q when receiving a SYNC_ACK
When receiving a NDLC PCB_SYNC_ACK the pending data was never
removed from ack_pending_q and cleared.

Cc: stable@vger.kernel.org
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-08-17 00:35:07 +02:00
Christophe Ricard
daaf1e1f16 NFC: st-nci: fix use of uninitialized variables in error path
st_nci_hci_load_session() calls kfree_skb() on unitialized
variables skb_pipe_info and skb_pipe_list if the call to
nci_hci_connect_gate() failed. Reword the error path to not use
these variables when they are not initialized. While at it, there
seemed to be a memory leak because skb_pipe_info was only freed
once, after the for-loop, even though several ones were created
by nci_hci_send_cmd.

Cc: stable@vger.kernel.org
Acked-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-08-17 00:35:07 +02:00
Christophe Ricard
e7723b3307 nfc: st-nci: Fix non accurate comment for st_nci_i2c_read
Due to a copy and paste error st_nci_i2c_read still contains
st21nfca header comment.

Cc: stable@vger.kernel.org
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-08-17 00:35:07 +02:00
Christophe Ricard
30458aac63 nfc: st-nci: Fix typo when changing from st21nfcb to st-nci
Replace ST21NFCB with ST_NCI or st21nfcb with st_nci as it
was forgotten in commit "nfc: st-nci: Rename st21nfcb to st-nci"
ed06aeefda

Cc: stable@vger.kernel.org
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-08-17 00:35:07 +02:00
Christophe Ricard
76b733d158 nfc: st-nci: Remove duplicate file platform_data/st_nci.h
commit "nfc: st-nci: Rename st21nfcb to st-nci" adds
include/linux/platform_data/st_nci.h duplicated with
include/linux/platform_data/st-nci.h.

Only drivers/nfc/st-nci/i2c.c uses platform_data/st_nci.h.

Cc: stable@vger.kernel.org
Reported-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2015-08-17 00:35:06 +02:00