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* Patched in Tegra support.Jonathan Herman2013-01-17
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* NFC: Export nfc_hci_sak_to_protocol()Eric Lapuyade2012-11-19
| | | | | | | Some HCI drivers will need it. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Export nfc_hci_result_to_errno as it can be needed by HCI driversEric Lapuyade2012-11-19
| | | | | Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Dot not dispatch HCI event received on unopened pipeEric Lapuyade2012-11-19
| | | | | | | | A chip with pre-opened gates may send events on a gate that nobody has opened in the handset host. Discard those events. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Ignore err when chip doesn't implement HW/SW info registersEric Lapuyade2012-11-19
| | | | | | | | | NFC_HCI_ID_MGMT_VERSION_SW and NFC_HCI_ID_MGMT_VERSION_HW are optional registers for gate NFC_HCI_ID_MGMT_GATE in standard HCI. When chip doesn't implement, just leave all the information as zeros. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Fix some code style and whitespace issuesSzymon Janc2012-10-26
| | | | | Signed-off-by: Szymon Janc <szymon.janc@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Fix sparse warnings due to missing staticArron Wang2012-10-26
| | | | | Signed-off-by: Arron Wang <arron.wang@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Implement HCI DEP send and receive dataArron Wang2012-10-26
| | | | | | | And implement the corresponding hooks for pn544. Signed-off-by: Arron Wang <arron.wang@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Implement HCI DEP link up and downArron Wang2012-10-26
| | | | | | | And implement the corresponding hooks for pn544. Signed-off-by: Arron Wang <arron.wang@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Handle pn544 continue activationArron Wang2012-10-26
| | | | | | | | | We need to send continue activation command to allow NFCIP-1 activation when a NFC target has been discovered in type A or type F reader gate. Signed-off-by: Arron Wang <arron.wang@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Pass hardware specific HCI event to driverArron Wang2012-10-26
| | | | | Signed-off-by: Arron Wang <arron.wang@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* workqueue: avoid using deprecated functionsLinus Torvalds2012-10-02
| | | | | | | | | | | | | The network merge brought in a few users of functions that got deprecated by the workqueue cleanups: the 'system_nrt_wq' is now the same as the regular system_wq, since all workqueues are now non- reentrant. Similarly, remove one use of flush_work_sync() - the regular flush_work() has become synchronous, and the "_sync()" version is thus deprecated as being superfluous. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* NFC: Add HCI module descriptionEric Lapuyade2012-09-24
| | | | | Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Changed HCI and PN544 HCI driver to use the new HCI LLC CoreEric Lapuyade2012-09-24
| | | | | | | | | | | The previous shdlc HCI driver and its header are removed from the tree. PN544 now registers directly with HCI and passes the name of the llc it requires (shdlc). HCI instantiation now allocates the required llc instance. The llc is started when the HCI device is brought up. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Add an LLC Core layer to HCIEric Lapuyade2012-09-24
| | | | | | | | | The LLC layer manages modules that control the link layer protocol (such as shdlc) between HCI and an HCI driver. The driver must simply specify the required llc when it registers with HCI. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Modified hci_transceive to become an asynchronous operationEric Lapuyade2012-09-24
| | | | | | | | | | | This enables the completion callback to be called from a different context, preventing a possible deadlock if the callback resulted in the invocation of a nested call to the currently locked nfc_dev. This is also more in line with the im_transceive nfc_ops for NFC Core or NCI drivers which already behave asynchronously. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Changed the HCI cmd execution callback prototypeEric Lapuyade2012-09-24
| | | | | | | | Make it match the data_exchange_cb_t so that it can be used directly in the implementation of an asynchronous hci_transceive Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Remove pointless conditional before HCI kfree_skb()Wei Yongjun2012-09-24
| | | | | Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: Use system_nrt_wq instead of custom onesTejun Heo2012-09-24
| | | | | | | | | | | | | | NFC is using a number of custom ordered workqueues w/ WQ_MEM_RECLAIM. WQ_MEM_RECLAIM is unnecessary unless NFC is gonna be used as transport for storage device, and all use cases match one work item to one ordered workqueue - IOW, there's no actual ordering going on at all and using system_nrt_wq gives the same behavior. There's nothing to be gained by using custom workqueues. Use system_nrt_wq instead and drop all the custom ones. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* Merge branch 'master' of ↵John W. Linville2012-07-17
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
| * NFC: Set target nfcid1 for all HCI reader A targetsEric Lapuyade2012-07-12
| | | | | | | | | | | | | | | | | | | | | | Without the discovered target nfcid1 and its length set properly, type 2 tags detection fails with the pn544 as it checks for them from pn544_hci_complete_target_discovered(). Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Reported-by: Mathias Jeppsson <mathias.jeppsson@sonymobile.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
| * NFC: Fix empty HCI message list checkMathias Jeppsson2012-07-10
| | | | | | | | | | | | | | | | | | list_first_entry() will never return NULL. Instead use list_for_each_entry_safe() to iterate through the list. Signed-off-by: Mathias Jeppsson <mathias.jeppsson@sonymobile.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | NFC: Add ISO 14443 type B protocolSamuel Ortiz2012-07-09
| | | | | | | | | | | | | | | | | | 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: Allow HCI driver to pre-open pipes to some gatesEric Lapuyade2012-07-09
| | | | | | | | | | | | | | | | | | | | Some NFC chips will statically create and open pipes for both standard and proprietary gates. The driver can now pass this information to HCI such that HCI will not attempt to create and open them, but will instead directly use the passed pipe ids. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* | NFC: Implement HCI driver or internal error managementEric Lapuyade2012-07-09
| | | | | | | | | | | | | | | | | | If there is an ongoing HCI command executing, it will be completed, thereby pushing the error up to the core. Otherwise, HCI will directly notify the core with the error. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* | NFC: Factorize HCI cmd completionEric Lapuyade2012-07-09
| | | | | | | | | | | | | | | | | | HCI cmd can be completed either from an HCI response or from an internal driver or HCI error. This requires to factorize the completion code outside of the device lock. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* | NFC: Changed HCI cmd execution completion result to std linux errnoEric Lapuyade2012-07-09
| | | | | | | | | | | | | | | | | | | | | | An HCI command can complete either from an HCI response (with an HCI result) or as a consequence of any other system error during processing. The completion therefore needs to take a standard errno code. The HCI response will convert its result to a standard errno before calling the completion. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* | NFC: Implement HCP reaggregation allocation error caseEric Lapuyade2012-07-09
| | | | | | | | | | | | | | We can now report an ENOMEM error up to the HCI layer. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* | NFC: Remove an impossible HCI error caseEric Lapuyade2012-07-09
| | | | | | | | | | | | | | nfc_hci_recv_frame can not be called with a NULL skb. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* | NFC: Prepare asynchronous error management for driver and shdlcEric Lapuyade2012-07-09
| | | | | | | | | | Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* | NFC: Introduce target mode tx opsSamuel Ortiz2012-06-04
| | | | | | | | | | | | And rename the initiator mode data exchange ops for consistency sake. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* | NFC: Add target mode protocols to the polling loop startup routineSamuel Ortiz2012-06-04
|/ | | | Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* NFC: HCI drivers don't have to keep track of polling stateEric Lapuyade2012-05-15
| | | | | | | | The NFC core code already does that for them. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: HCI ops should not be exposed globallyH Hartley Sweeten2012-05-15
| | | | | | | | | | | | | | | | | The variable 'hci_nfc_ops' is only referenced in this file and should be marked static to prevent it from being exposed globally. Quites the sparse warning: warning: symbol 'hci_nfc_ops' was not declared. Should it be static? 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: Add HCI/SHDLC support to let driver check for tag presenceEric Lapuyade2012-05-15
| | | | | | Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Remove useless HCI private nfc target tableEric Lapuyade2012-05-15
| | | | | | Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: Cache the core NFC active target pointer instead of its indexEric Lapuyade2012-05-15
| | | | | | | | | | | | The NFC Core now caches the active nfc target pointer, thereby avoiding the need to lookup the target table for each invocation of a driver ops. Consequently, pn533, HCI and NCI now directly receive an nfc_target pointer instead of a target index. Cc: Ilan Elias <ilane@ti.com> Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* NFC: HCI supportEric Lapuyade2012-04-12
This is an implementation of ETSI TS 102 622 specification. Many NFC chipsets use HCI as the host <-> target protocol on top of a serial link like i2c. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>