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* NFC: Implement NCI dep_link_up and dep_link_downIlan Elias2012-09-251-0/+20
| | | | | | | | | | | During NFC-DEP target activation, store the remote general bytes to be used later in dep_link_up. When dep_link_up is called, activate the NFC-DEP target, and forward the remote general bytes. When dep_link_down is called, deactivate the target. Signed-off-by: Ilan Elias <ilane@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Parse NCI NFC-DEP activation paramsIlan Elias2012-09-251-0/+32
| | | | | Signed-off-by: Ilan Elias <ilane@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Add ISO 14443 type B protocolSamuel Ortiz2012-07-091-1/+4
| | | | | | | | | Some devices (e.g. Sony's PaSoRi) can not do type B polling, so we have to make a distinction between ISO14443 type A and B poll modes. Cc: Eric Lapuyade <eric.lapuyade@intel.com> Cc: Ilan Elias <ilane@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Prevent multiple buffer overflows in NCIDan Rosenberg2012-06-251-5/+5
| | | | | | | | | | | | | | | | Fix multiple remotely-exploitable stack-based buffer overflows due to the NCI code pulling length fields directly from incoming frames and copying too much data into statically-sized arrays. Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com> Cc: stable@kernel.org Cc: security@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> Cc: David S. Miller <davem@davemloft.net> Acked-by: Ilan Elias <ilane@ti.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Quiet nci/ntf.c sparse noise about plain integer as NULL pointerH Hartley Sweeten2012-05-151-1/+1
| | | | | | | | | | | | | | | | Pointers should be cleared with NULL, not 0. Quiets a couple sparse warnings of the type: warning: Using plain integer as NULL pointer Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Cc: Lauro Ramos Venancio <lauro.venancio@openbossa.org> Cc: Aloisio Almeida Jr <aloisio.almeida@openbossa.org> Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: The core part should generate the target indexSamuel Ortiz2012-04-121-5/+6
| | | | | | | | | | | | The target index can be used by userspace to uniquely identify a target and thus should be kept unique, per NFC adapter. Moreover, some protocols do not provide a logical index when discovering new targets, so we have to generate one for them. For NCI or pn533 to fetch their logical index, we added a logical_idx field to the target structure. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: NCI code identation fixesSamuel Ortiz2012-03-061-40/+35
| | | | | Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Add NCI multiple targets supportIlan Elias2012-01-241-85/+238
| | | | | | | | | | | | Add the ability to select between multiple targets in NCI. If only one target is found, it will be auto-activated. If more than one target is found, then DISCOVER_NTF will be generated for each target, and the host should select one by calling DISCOVER_SELECT_CMD. Then, the target will be activated. If the activation fails, GENERIC_ERROR_NTF is generated. Signed-off-by: Ilan Elias <ilane@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Clearly separate NCI states from flagsIlan Elias2012-01-241-3/+2
| | | | | | | | | Make a clear separation between NCI states and flags. This is required in order to support more NCI states (e.g. for multiple targets support). Signed-off-by: Ilan Elias <ilane@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Export new attributes sensb_res and sensf_resIlan Elias2012-01-241-13/+98
| | | | | | | | | | | | Export new attributes sensb_res for tech B and sensf_res for tech F in the target info (returned as a response to NFC_CMD_GET_TARGET). The max size of the attributes nfcid1, sensb_res and sensf_res is exported to user space though include/linux/nfc. Signed-off-by: Ilan Elias <ilane@ti.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Complete NCI deactivate in deactivate_ntfIlan Elias2012-01-241-0/+2
| | | | | | | | | | | If a target was active, complete the NCI deactivate request only in deactivate_ntf. Otherwise, complete it at deactivate_rsp. Deactivate_ntf represents the actual disconnection event (sent from the NCI controller). Signed-off-by: Ilan Elias <ilane@ti.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Export a new attribute nfcid1 in target infoIlan Elias2012-01-041-0/+6
| | | | | | | | | | The nfcid1 is the NFC-A identifier. It is exported as an attribute of the target info (returned as a response to NFC_CMD_GET_TARGET). Signed-off-by: Ilan Elias <ilane@ti.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Handle error during NCI data exchangeIlan Elias2012-01-041-0/+18
| | | | | | | | | | Add support for NCI Interface Error Notification. When this notification is received and we're during a data exchange transaction, indicate an error to the NFC core layer via the data exchange callback. Signed-off-by: Ilan Elias <ilane@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Update names and structs to NCI spec 1.0 d22Ilan Elias2012-01-041-8/+18
| | | | | | | | Addition, deletion, and modification of NCI constants. Changes in NCI commands, responses, and notifications structures. Signed-off-by: Ilan Elias <ilane@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Add function name to the NFC pr_fmt() routineSamuel Ortiz2011-12-141-1/+1
| | | | | Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nfc: Remove function tracer like entry messagesJoe Perches2011-11-301-1/+1
| | | | | | | | Logging messages that mimic function tracer enter/exit aren't necessary. Just remove them. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nfc: Convert nfc_dbg to pr_debugJoe Perches2011-11-301-34/+33
| | | | | | | | | | | Using the standard debugging mechanisms is better than subsystem specific ones when the subsystem doesn't use a specific struct. Coalesce long formats. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* nfc: Use standard logging stylesJoe Perches2011-11-301-7/+9
| | | | | | | | | | | | Using the normal logging styles is preferred over subsystem specific styles when the subsystem does not take a specific struct. Convert nfc_<level> specific messages to pr_<level> Add newlines to uses. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Removal of unused operations for NCI spec 1.0 d18Ilan Elias2011-11-111-12/+3
| | | | | | | | Remove unused NCI operations, e.g. create static rf connection. Signed-off-by: Ilan Elias <ilane@ti.com> Acked-by: Lauro Ramos Venancio <lauro.venancio@openbossa.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Update names and structs to NCI spec 1.0 d18Ilan Elias2011-11-111-50/+87
| | | | | | | | | Addition, deletion and modification of NCI constants. Changes in NCI commands, responses and notifications structures. Signed-off-by: Ilan Elias <ilane@ti.com> Acked-by: Lauro Ramos Venancio <lauro.venancio@openbossa.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: protect nci_data_exchange transactionsIlan Elias2011-09-271-1/+1
| | | | | | | | | | Protect 'cb' and 'cb_context' arguments in nci_data_exchange. In fact, this implements a queue with max length of 1 data exchange transactions in parallel. Signed-off-by: Ilan Elias <ilane@ti.com> Acked-by: Lauro Ramos Venancio <lauro.venancio@openbossa.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: basic NCI protocol implementationIlan Elias2011-09-201-0/+258
The NFC Controller Interface (NCI) is a standard communication protocol between an NFC Controller (NFCC) and a Device Host (DH), defined by the NFC Forum. Signed-off-by: Ilan Elias <ilane@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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