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path: root/drivers/nfc
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2013-04-11NFC: pn533: Fix div by zero while stopping pollingWaldemar Rymarkiewicz1-0/+5
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>
2013-04-11NFC: pn533: Print out response status bits in hexWaldemar Rymarkiewicz1-3/+4
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>
2013-04-11NFC: pn533: Reword all std frame logic functWaldemar Rymarkiewicz1-60/+61
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-11NFC: pn533: Use dynamic debug for pn533 hex dumpsSamuel Ortiz1-4/+4
Those can be very verbose and we only want them when debugging pn533. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-01NFC: microread: Fix build failure due to a new MEI bus APISamuel Ortiz1-21/+17
uuid device_id field is removed and mei_device is renamed mei_cl_device. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-18Merge branch 'master' of ↵John W. Linville9-5/+1397
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
2013-02-11NFC: microread: Fix mei physical layerSamuel Ortiz1-19/+24
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>
2013-02-08NFC: pn533: Fix target polling modeThierry Escande1-1/+1
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>
2013-02-08NFC: microread: Add MEI physical layerSamuel Ortiz3-0/+254
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>
2013-02-03NFC: microread: Add i2c physical layerSamuel Ortiz3-0/+354
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-02-03NFC: Initial support for Inside Secure microreadEric Lapuyade6-0/+781
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>
2013-01-29nfc: pn533: Remove unreachable codeWaldemar Rymarkiewicz1-2/+0
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-29nfc: pn533: Use static poll_mod and std_frame_opsWaldemar Rymarkiewicz1-2/+2
These variables are not exported. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-28Merge branch 'master' of ↵John W. Linville8-840/+917
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2013-01-14NFC: pn533: Fix bad allocation sizeThierry Escande1-2/+2
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>
2013-01-10NFC: pn533: Fix missing parenthesisWaldemar Rymarkiewicz1-1/+2
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>
2013-01-10NFC: Initial Secure Element APISamuel Ortiz3-2/+6
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>
2013-01-10NFC: pn544: Use devm_kzalloc APISamuel Ortiz1-14/+6
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn544: Use module_i2c_driverSamuel Ortiz1-23/+1
The pn544 init routine does nothing but adding the driver to the i2c bus. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn544: Separate the core code and the i2c one into different modulesSamuel Ortiz5-16/+35
As we may need to support other physical layers, we can avoid linking the core part into each and every pn544 module. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: Add HCI quirks to support driver (non)standard implementationsEric Lapuyade1-1/+1
Some chips diverge from the HCI spec in their implementation of standard features. This adds a new quirks parameter to nfc_hci_allocate_device() to let the driver indicate its divergence. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: Fixed skb leak in tm_send() nfc and hci ops implementationsEric Lapuyade1-2/+8
Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: Changed event_received hci ops result semanticEric Lapuyade1-5/+11
Some chips use a standard HCI event code, destined to a proprietary gate, with a different meaning. Therefore, the HCI driver must always have a chance to intercept the event before standard processing is attempted. The new semantic specifies that the result value "1" means that the driver doesn't especially handle the event. result <= 0 means it was handled. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: Added error handling in event_received hci opsEric Lapuyade1-14/+13
There is no use to return an error if the caller doesn't get it. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: nfcwilink: Use devm_kzallocJulia Lawall1-7/+2
devm_kzalloc allocates memory that is released when a driver detaches. This patch uses devm_kzalloc for data that is allocated in the probe function of a platform device and is only freed in the remove function. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Introduce ops for frame logicWaldemar Rymarkiewicz1-73/+135
Encapsulate whole frame logic (tx/rx frame structure and size) inside the ops structure to make the core driver generic for devices which handle frames in non standard menner (different then pn533 spec say). Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Remove unused dev->wq_in_frameWaldemar Rymarkiewicz1-5/+0
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Cleanup pn533_cmd_complete_tWaldemar Rymarkiewicz1-22/+7
'params' arg in pn533_cmd_complete_t definition has been deprecated and currently is not in use (resp skb is pass in arg ptr), so remove it. Also 'params_len' arg is used as a transfer status indicator, so simply reword it appropriately. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Remove deprecated dev->out_frame buffWaldemar Rymarkiewicz1-6/+1
As it's not used anymore get rid of that buffer. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Use skb in __pn533_send_cmd_frame_asynWaldemar Rymarkiewicz1-26/+18
__pn533_send_cmd_frame_async() should be frame type independent. So, don't use pn533_frame type params and instead use skb for req and resp pointers. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Don't use out_frame in pn533_send_ackWaldemar Rymarkiewicz1-25/+6
dev->out_frame buffer is much bigger for ACK frame needs. Use local buffer instead. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Cleanup debug messagesWaldemar Rymarkiewicz1-25/+7
Remove debug messages which do not include valueable informations in debug mode. Add some new ones for better tracking or reword when if necessary. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Fix urb->status handlingWaldemar Rymarkiewicz1-16/+18
Fix text message to be more suitable for the error code and treat ESHUTDOWN as an error not debug msg. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Remove unused pn533_send_cmd_frame_asyWaldemar Rymarkiewicz1-68/+7
Remove obsolete send async api as it's no longer used. Remove global dev->in_frame as well, as each packet is kept is a seperate skb struct now, so that's not used anymore. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Fix minor style issuesWaldemar Rymarkiewicz1-5/+5
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Fix open parenthesis alignmentWaldemar Rymarkiewicz1-22/+19
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Fix spacing issuesWaldemar Rymarkiewicz1-8/+8
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Fix quoted strings split across linesWaldemar Rymarkiewicz1-35/+35
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Remove frame logic from poll cmdsWaldemar Rymarkiewicz1-144/+126
Remove frame logic from start_pool cb using the new iface for async send. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Dump tx and rx data in debug modeWaldemar Rymarkiewicz1-0/+6
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Del frame logic from Data Exchange cmdWaldemar Rymarkiewicz1-168/+141
Remove frame logic from transceive cb using new iface for async send. For pn533_wq_mi_recv() use pn533_send_cmd_direct_async which sends the cmd directly to the hardware, skipping cmd queue. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Del frame logic from InJumForDep cmdWaldemar Rymarkiewicz1-62/+55
Remove frame logic from InJmumpForDEP command using the new iface for async send. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Del frame logic from TgGet/SetData cmdWaldemar Rymarkiewicz1-64/+33
Remove frame logic from TgSetData and TgGetData commands using the new iface for async send. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Remove pn533_send_cmd_frame_syncWaldemar Rymarkiewicz1-112/+85
Remove obsolate pn533_send_cmd_frame_sync() and use previously added new iface for sync send. The new interface require the use of individual skb for each cmd which removes some memcpy calls and hides frame logic. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Add pn533_alloc_skb for req allocationWaldemar Rymarkiewicz1-6/+16
Allocate sk_buff for the request. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Add a new pn533_send_sync ifaceWaldemar Rymarkiewicz1-1/+54
It is intended to replace pn533_send_cmd_frame_sync() iface which requires from the caller to create complete frame. The new function constructs a complete frame itself and sends it out in sync manner. This way frame logic is hidden from the caller. pn533_send_cmd_sync() returns ERR_PTR in case of an error or a pointer to valid response sk_buff otherwise. The pointer must be freed by the caller when it's been consumed. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Add a new pn533_send_data_async ifaceWaldemar Rymarkiewicz1-0/+31
This iface is intended to be used with DEP transfers. It differs from pn533_send_cmd_async() in the way the response skb is allocated. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Add a new pn533_send_cmd_async ifaceWaldemar Rymarkiewicz1-3/+164
This is intendend to replace pn533_send_cmd_frame_async() which requires from the caller to create a complete frame. The new function constructs a frame and sends it out which hides the frame logic and avoid code duplication. The caller has to allocate skb and put its payload there, and finally provide the skb together with a complete cb to pn533_send_cmd_async(). Response skb is allocated by the core part and pass to the caller cb. Next, the caller has to free it when is not needed anymore or pass it up to the stack. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Remove pointless flags paramWaldemar Rymarkiewicz1-19/+14
__pn533_send_cmd_frame_async() is called when lock is held so GFP_KERNEL flag will be always used. Thus, having extra param does not optimise the code. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-10NFC: pn533: Add frame header length defineWaldemar Rymarkiewicz1-20/+33
PN533_CMD_DATAEXCH_HEAD_LEN includes a frame header length which is not seen at a glance. It can be missleading, so split it and define the frame header length explicitly. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-03 09:48:04 +0300