summaryrefslogtreecommitdiffstats
path: root/drivers/nfc
Commit message (Collapse)AuthorAgeFilesLines
* mei: bus: split RX and async notification callbacksAlexander Usyskin2016-11-171-20/+16
| | | | | | | | | Split callbacks for RX and async notification events on mei bus to eliminate synchronization problems and to open way for RX optimizations. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge 4.9-rc5 into char-misc-nextGreg Kroah-Hartman2016-11-141-1/+1
|\ | | | | | | | | | | We want those fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * mei: bus: fix received data size check in NFC fixupAlexander Usyskin2016-10-311-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | NFC version reply size checked against only header size, not against full message size. That may lead potentially to uninitialized memory access in version data. That leads to warnings when version data is accessed: drivers/misc/mei/bus-fixup.c: warning: '*((void *)&ver+11)' may be used uninitialized in this function [-Wuninitialized]: => 212:2 Reported in Build regressions/improvements in v4.9-rc3 https://lkml.org/lkml/2016/10/30/57 Fixes: 59fcd7c63abf (mei: nfc: Initial nfc implementation) Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | mei: bus: remove rx callback contextTomas Winkler2016-10-281-3/+2
| | | | | | | | | | | | | | | | The callback context is redunant as all the information can be retrived from the device struture of its private data. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nfc: mei_phy: get phy from the driver dataTomas Winkler2016-10-281-1/+4
| | | | | | | | | | | | | | | | In order to remove rather redundant context from the callback signature we the get nfc mei_phy from the driver's data. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | nfc: mei: use module_mei_cl_driver macroTomas Winkler2016-10-282-44/+2
|/ | | | | | | | Replace boilerplate driver registration with module_mei_cl_driver macro in pn544 and microread devices. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'nfc-next-4.8-1' of ↵David S. Miller2016-07-206-353/+392
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-next Samuel Ortiz says: ==================== NFC 4.8 pull request This is the first NFC pull request for 4.8. We have: - A fairly large NFC digital stack patchset: * RTOX fixes. * Proper DEP RWT support. * ACK and NACK PDUs handling fixes, in both initiator and target modes. * A few memory leak fixes. - A conversion of the nfcsim driver to use the digital stack. The driver supports the DEP protocol in both NFC-A and NFC-F. - Error injection through debugfs for the nfcsim driver. - Improvements to the port100 driver for the Sony USB chipset, in particular to the command abort and cancellation code paths. - A few minor fixes for the pn533, trf7970a and fdp drivers. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
| * NFC: nfcsim: Simulate lost frames through debugfs entryThierry Escande2016-07-191-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch allows to simulate the lost of frames exchanged between the 2 nfcsim devices through a control entry in the debugfs and is used as follow: echo n > /sys/kernel/debug/nfcsim/nfcX/dropframe Where n specifies the number of frames to be dropped between 0 and 255 and nfcX is either nfc0 or nfc1, one of the two nfcsim devices. In the following example, the next frame that should be sent by the nfc0 device will be dropped and thus not received by the nfc1 device: echo 1 > /sys/kernel/debug/nfcsim/nfc0/dropframe The value of 0 can be used to reset the dropframe counter. Signed-off-by: Thierry Escande <thierry.escande@collabora.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * NFC: nfcsim: Add support for sysfs control entryThierry Escande2016-07-191-0/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The idea is to have a way to control and/or modify the behavior of the nfcsim virtual devices. This patch creates a folder tree in the debug filesystem. The debugfs is usually mounted into /sys/kernel/debug and the nfcsim entries are located in DEBUGFS/nfcsim/nfcX/ where X is either 0 or 1 depending on the device you want to address. These folders are empty for now and control entries will be added by upcoming commits. Signed-off-by: Thierry Escande <thierry.escande@collabora.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * NFC: nfcsim: Fix missing dependency on NFC_DIGITALThierry Escande2016-07-061-0/+1
| | | | | | | | | | | | | | | | The nfcsim driver now depends on the Digital layer. This patch adds the missing dependency on NFC_DIGITAL for NFC_SIM config. Signed-off-by: Thierry Escande <thierry.escande@collabora.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * NFC: port100: Abort current command before switching RF offThierry Escande2016-07-061-0/+4
| | | | | | | | | | | | | | | | | | If a command is still being processed by the device, the switch RF off command will be rejected. With this patch, the port100 driver calls port100_abort_cmd() before sending the switch RF off command. Signed-off-by: Thierry Escande <thierry.escande@collabora.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * NFC: port100: Make port100_abort_cmd() synchronousThierry Escande2016-07-061-1/+10
| | | | | | | | | | | | | | | | This patch makes the abort_cmd function synchronous. This allows the caller to immediately send a new command after abort_cmd() returns. Signed-off-by: Thierry Escande <thierry.escande@collabora.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * NFC: port100: Fix the command cancellation processThierry Escande2016-07-061-5/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | The USB out_urb used to send commands to the device can be submitted through the standard command processing queue coming from the Digital Protocol layer but it can also be submitted from port100_abort_cmd(). To not submit the URB while already active, a mutex is now used to protect it and a cmd_cancel flag is used to not send command while canceling the previous one. Signed-off-by: Thierry Escande <thierry.escande@collabora.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * NFC: port100: Don't send a new command if one is still pendingThierry Escande2016-07-061-0/+6
| | | | | | | | | | | | | | | | | | | | | | This patch ensures that a command is not still in process before sending a new one to the device. This can happen when neard is in constant polling mode: the configure_hw command can be sent when neard restarts polling after a LLCP SYMM timeout but before the device has returned in timeout from the last DEP frame sent. Signed-off-by: Thierry Escande <thierry.escande@collabora.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * NFC: nfcsim: Make use of the Digital layerThierry Escande2016-07-041-354/+258
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this complete rewrite, the loopback nfcsim driver now relies on the Digital layer of the nfc stack. As with the previous version, 2 nfc devices are declared when the driver is initialized. The driver supports the NFC_DEP protocol in NFC-A and NFC-F technologies. The 2 devices are using a pair of virtual links for sk_buff exchange. The out-link of one device is the in-link of the other and conversely. To receive data, a device calls nfcsim_link_recv_skb() on its in-link and waits for incoming data on a wait queue. To send data, a device calls nfcsim_link_send_skb() on its out-link which stores the passed skb and signals its wait queue. If the peer device was in the nfcsim_link_recv_skb() call, it will be signaled and will be able to pass the received sk_buff up to the Digital layer. Signed-off-by: Thierry Escande <thierry.escande@collabora.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * NFC: port100: Explicitly set NFC-F framing for NFC-DEPThierry Escande2016-07-041-1/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | When setting the driver framing as NFC_DIGITAL_FRAMING_NFCF_NFC_DEP it used to be already configured as NFC_DIGITAL_FRAMING_NFCF which is the same. So this entry was empty in the in_protocols table. Now that the digital stack can handle PLS requests, it can be changed on the fly from NFC_DIGITAL_FRAMING_NFCA_NFC_DEP. This patch explicitly defines the framing configuration values for NFC_DIGITAL_FRAMING_NFCF_NFC_DEP. Signed-off-by: Thierry Escande <thierry.escande@collabora.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * NFC: trf7970a: add TI recommended write of zero to Register 0x18Geoff Lansberry2016-07-041-0/+4
| | | | | | | | | | Signed-off-by: Geoff Lansberry <geoff@kuvee.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * NFC: fdp: Detect errors from fdp_nci_create_conn()Geert Uytterhoeven2016-07-041-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | drivers/nfc/fdp/fdp.c: In function ‘fdp_nci_patch_otp’: drivers/nfc/fdp/fdp.c:373: warning: comparison is always false due to limited range of data type drivers/nfc/fdp/fdp.c: In function ‘fdp_nci_patch_ram’: drivers/nfc/fdp/fdp.c:444: warning: comparison is always false due to limited range of data type fdp_nci_create_conn() may return a negative error code, which is silently ignored by assigning it to a u8. Change conn_id from u8 to int to fix this. Fixes: a06347c04c13e380 ("NFC: Add Intel Fields Peak NFC solution driver") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * NFC: pn533: double free on error in probe()Dan Carpenter2016-07-041-6/+3
| | | | | | | | | | | | | | | | We can't pass devm_ allocated pointers to kfree() because they will be freed again after the drive is unloaded. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
| * NFC: set info->ram_patch to NULL when it is releasedColin Ian King2016-07-041-1/+1
| | | | | | | | | | | | | | | | | | | | When info->ram_patch is released info->otp_patch is being set to NULL rather than info->ram_patch. I believe this is a cut-n-paste bug from almost identical code proceeding it that uses the same idiom for info->otp_patch. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* | drivers: misc: ti-st: Use int instead of fuzzy char for callback statusGeert Uytterhoeven2016-07-171-2/+2
|/ | | | | | | | | | | | | | | | | | | | | | | | | | On mips and parisc: drivers/bluetooth/btwilink.c: In function 'ti_st_open': drivers/bluetooth/btwilink.c:174:21: warning: overflow in implicit constant conversion [-Woverflow] hst->reg_status = -EINPROGRESS; drivers/nfc/nfcwilink.c: In function 'nfcwilink_open': drivers/nfc/nfcwilink.c:396:31: warning: overflow in implicit constant conversion [-Woverflow] drv->st_register_cb_status = -EINPROGRESS; There are actually two issues: 1. Whether "char" is signed or unsigned depends on the architecture. As the completion callback data is used to pass a (negative) error code, it should always be signed. 2. EINPROGRESS is 150 on mips, 245 on parisc. Hence -EINPROGRESS doesn't fit in a signed 8-bit number. Change the callback status from "char" to "int" to fix these. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* NFC: pn533: handle interrupted commands in pn533_recv_frameMichael Thalmeier2016-05-101-0/+8
| | | | | | | | | | | When pn533_recv_frame is called from within abort_command context the current dev->cmd is not guaranteed to be set. Additionally on receiving an error status we can omit frame checking and simply schedule the workqueue. Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: pn533: reset poll modulation list before calling targets_foundMichael Thalmeier2016-05-101-3/+3
| | | | | | | | | | We need to reset the poll modulation list before calling nfc_targets_found because otherwise userspace could run before the modulation list is cleared and then get a "Cannot activate target while polling" error upon calling activate_target. Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: pn533: i2c: do not call pn533_recv_frame with aborted commandsMichael Thalmeier2016-05-091-4/+11
| | | | | | | | When a command gets aborted the pn533 core does not need any RX frames that may be received until a new frame is sent. Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: pn533: fix order of initializationMichael Thalmeier2016-05-094-5/+8
| | | | | | | | Correctly call nfc_set_parent_dev before nfc_register_device. Otherwise the driver will OOPS when being removed. Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: pn533: i2c: free irq on driver removeMichael Thalmeier2016-05-091-0/+2
| | | | | | | | The requested irq needs to be freed when removing the driver, otherwise a following driver load fails to request the irq. Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* nfc: st-nci: Move loopback usage from HCI to NCIChristophe Ricard2016-05-043-66/+14
| | | | | | | | | | | 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>
* nfc: nci: Add an additional parameter to identify a connection idChristophe Ricard2016-05-042-3/+6
| | | | | | | | | 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>
* nfc: st21nfca: Remove duplicated ST21NFCA_ESE_HOST_ID from se.cChristophe Ricard2016-05-041-2/+0
| | | | | | | ST21NFCA_ESE_HOST_ID is already defined in st21nfca.h. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* nfc: st-nci: Remove redundant ST_NCI_HCI_HOST_ID_ESE from st-nci.hChristophe Ricard2016-05-042-3/+2
| | | | | | | | | | 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>
* NFC: st-nci: spi: Drop two useless checks in ACPI probe pathChristophe Ricard2016-05-041-12/+1
| | | | | | | | | | | | | | 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>
* NFC: st-nci: i2c: Drop two useless checks in ACPI probe pathChristophe Ricard2016-05-041-12/+1
| | | | | | | | | | | | | | 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>
* NFC: st21nfca: Drop two useless checks in ACPI probe pathChristophe Ricard2016-05-041-12/+1
| | | | | | | | | | | | | | When st21nfca_hci_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>
* nfc: st21nfca: A APDU_READER_GATE pipe is unexpected on a UICCChristophe Ricard2016-05-041-1/+1
| | | | | | | | | 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>
* nfc: st-nci: A APDU_READER_GATE pipe is unexpected on a UICCChristophe Ricard2016-05-041-1/+1
| | | | | | | | | 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>
* nfc: st-nci: Simplify white list buildingChristophe Ricard2016-05-041-9/+2
| | | | | | | Simplify white list Building Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* nfc: st21nfca: Simplify white list buildingChristophe Ricard2016-05-041-9/+2
| | | | | | | Simplify white list Building Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* nfc: st-nci: set is_ese_present and is_uicc_present properlyChristophe Ricard2016-05-042-8/+26
| | | | | | | | | | | 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>
* nfc: st21nfca: set is_ese_present and is_uicc_present properlyChristophe Ricard2016-05-041-4/+13
| | | | | | | | | | | 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>
* nfc: st21nfca: i2c: Change ST21NFCA_GPIO_NAME_RESET to match DTChristophe Ricard2016-05-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 10cf4899f8af ("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, "SMO2100") // _HID: Hardware ID Name (_CID, "SMO2100") // _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) { "enable-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>
* nfc: st-nci: spi: Change ST_NCI_GPIO_NAME_RESET to match DTChristophe Ricard2016-05-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 10cf4899f8af ("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>
* nfc: st-nci: i2c: Change ST_NCI_GPIO_NAME_RESET to match DTChristophe Ricard2016-05-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 10cf4899f8af ("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>
* nfc: st21nfca: Fix static checker warning Christophe Ricard2016-05-041-2/+4
| | | | | | | | | | | | | | Fix static checker warning: drivers/nfc/st21nfca/i2c.c:530 st21nfca_hci_i2c_acpi_request_resources() error: 'gpiod_ena' dereferencing possible ERR_PTR() Fix so that if no enable gpio can be retrieved an -ENODEV is returned. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Fixes: dfa8070d7f64 ("nfc: st21nfca: Add support for acpi probing for i2c device.") Cc: stable@vger.kernel.org Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* nfc: Drop owner assignment from i2c_driverKrzysztof Kozlowski2016-05-014-4/+0
| | | | | | | | 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>
* NFC: pn533: add I2C phy driverMichael Thalmeier2016-04-095-0/+317
| | | | | | | | | This adds the I2C phy interface for the pn533 driver. This way the driver can be used to interact with I2C connected pn532 devices. Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: pn533: Separate physical layer from the core implementationMichael Thalmeier2016-04-097-924/+1081
| | | | | | | | | | | | | | The driver now has all core stuff isolated in one file, and all the hardware link specifics in another. Writing a pn533 driver on top of another hardware link is now just a matter of adding a new file for that new hardware specifics. The first user of this separation will be the i2c based pn532 driver that reuses pn533 core implementation on top of an i2c layer. Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: pn533: Fix socket deadlockMichael Thalmeier2016-04-091-10/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A deadlock can occur when the NFC raw socket is closed while the driver is processing a command. Following is the call graph of the affected situation: send data via raw_sock: ------------- rawsock_tx_work sock_hold => socket refcnt++ nfc_data_exchange => cb = rawsock_data_exchange_complete ops->im_transceive = pn533_transceive => arg->cb = db = rawsock_data_exchange_complete pn533_send_data_async => cb = pn533_data_exchange_complete __pn533_send_async => cmd->complete_cb = cb = pn533_data_exchange_complete if_ops->send_frame_async response: -------- pn533_recv_response queue_work(priv->wq, &priv->cmd_complete_work) pn533_wq_cmd_complete pn533_send_async_complete cmd->complete_cb() = pn533_data_exchange_complete() arg->cb() = rawsock_data_exchange_complete() sock_put => socket refcnt-- => If the corresponding socket gets closed in the meantime socket will be destructed sk_free __sk_free sk->sk_destruct = rawsock_destruct nfc_deactivate_target ops->deactivate_target = pn533_deactivate_target pn533_send_cmd_sync pn533_send_cmd_async __pn533_send_async list_add_tail(&cmd->queue,&dev->cmd_queue) => add to command list because a command is currently processed wait_for_completion => the workqueue thread waits here because it is the one processing the commands => deadlock To fix the deadlock pn533_deactivate_target is changed to issue the PN533_CMD_IN_RELEASE command in async mode. This way nothing blocks and the release command is executed after the current command. Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: pn533: Send ATR_REQ only if NFC_PROTO_NFC_DEP bit is setMichael Thalmeier2016-04-091-2/+3
| | | | | | | | | | | | Currently it is not possible to only poll for passive targets with the pn533 driver. To change this ATR_REQ is only sent when NFC_PROTO_NFC_DEP is explicitly requested in poll_protocols. As most implementations (e.g. neard) poll for all protocols that are reported to be supported by the adapter, this should not have much of an effect on current implementations. Signed-off-by: Michael Thalmeier <michael.thalmeier@hale.at> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds2016-03-192-21/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull networking updates from David Miller: "Highlights: 1) Support more Realtek wireless chips, from Jes Sorenson. 2) New BPF types for per-cpu hash and arrap maps, from Alexei Starovoitov. 3) Make several TCP sysctls per-namespace, from Nikolay Borisov. 4) Allow the use of SO_REUSEPORT in order to do per-thread processing of incoming TCP/UDP connections. The muxing can be done using a BPF program which hashes the incoming packet. From Craig Gallek. 5) Add a multiplexer for TCP streams, to provide a messaged based interface. BPF programs can be used to determine the message boundaries. From Tom Herbert. 6) Add 802.1AE MACSEC support, from Sabrina Dubroca. 7) Avoid factorial complexity when taking down an inetdev interface with lots of configured addresses. We were doing things like traversing the entire address less for each address removed, and flushing the entire netfilter conntrack table for every address as well. 8) Add and use SKB bulk free infrastructure, from Jesper Brouer. 9) Allow offloading u32 classifiers to hardware, and implement for ixgbe, from John Fastabend. 10) Allow configuring IRQ coalescing parameters on a per-queue basis, from Kan Liang. 11) Extend ethtool so that larger link mode masks can be supported. From David Decotigny. 12) Introduce devlink, which can be used to configure port link types (ethernet vs Infiniband, etc.), port splitting, and switch device level attributes as a whole. From Jiri Pirko. 13) Hardware offload support for flower classifiers, from Amir Vadai. 14) Add "Local Checksum Offload". Basically, for a tunneled packet the checksum of the outer header is 'constant' (because with the checksum field filled into the inner protocol header, the payload of the outer frame checksums to 'zero'), and we can take advantage of that in various ways. From Edward Cree" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1548 commits) bonding: fix bond_get_stats() net: bcmgenet: fix dma api length mismatch net/mlx4_core: Fix backward compatibility on VFs phy: mdio-thunder: Fix some Kconfig typos lan78xx: add ndo_get_stats64 lan78xx: handle statistics counter rollover RDS: TCP: Remove unused constant RDS: TCP: Add sysctl tunables for sndbuf/rcvbuf on rds-tcp socket net: smc911x: convert pxa dma to dmaengine team: remove duplicate set of flag IFF_MULTICAST bonding: remove duplicate set of flag IFF_MULTICAST net: fix a comment typo ethernet: micrel: fix some error codes ip_tunnels, bpf: define IP_TUNNEL_OPTS_MAX and use it bpf, dst: add and use dst_tclassid helper bpf: make skb->tc_classid also readable net: mvneta: bm: clarify dependencies cls_bpf: reset class and reuse major in da ldmvsw: Checkpatch sunvnet.c and sunvnet_common.c ldmvsw: Add ldmvsw.c driver code ...
| * NFC: microread: Drop platform data header fileJean Delvare2016-03-091-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | Originally I only wanted to drop the unneeded inclusion of <linux/i2c.h>, but then noticed that struct microread_nfc_platform_data isn't actually used, and MICROREAD_DRIVER_NAME is redefined in the only file where it is used, so we can get rid of the header file and dead code altogether. Signed-off-by: Jean Delvare <jdelvare@suse.de> Cc: Lauro Ramos Venancio <lauro.venancio@openbossa.org> Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
OpenPOWER on IntegriCloud