linux.git/drivers/nfc, branch v3.10-rc2 Linux kernel source tree NFC: pn544: Add MEI physical layer 2013-04-15T22:39:41+00:00 Samuel Ortiz sameo@linux.intel.com 2013-04-15T22:14:35+00:00 bb03dceb83852614ae3ad6b3731a31422890b0b9 With the new mei_phy NFC driver API, the pn544 MEI physical layer is minimal and similar to the microread one. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> 
With the new mei_phy NFC driver API, the pn544 MEI physical layer is
minimal and similar to the microread one.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
NFC: mei: Add a common mei bus API for NFC drivers 2013-04-15T22:39:31+00:00 Eric Lapuyade eric.lapuyade@linux.intel.com 2013-04-15T09:19:20+00:00 4912e2fe74811693703e9b4e21bf36c067643a03 This isolates the common code that is required to use an mei bus nfc device from an NFC HCI drivers. This prepares for future drivers for NFC chips connected behind an Intel Management Engine controller. The microread_mei HCI driver is also modified to use that common code. Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> 
This isolates the common code that is required to use an mei bus nfc
device from an NFC HCI drivers. This prepares for future drivers for
NFC chips connected behind an Intel Management Engine controller.
The microread_mei HCI driver is also modified to use that common code.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
NFC: pn533: Turn radio on and off when bringing the device up and down 2013-04-11T14:29:11+00:00 Samuel Ortiz sameo@linux.intel.com 2013-04-11T09:45:41+00:00 60d9edd50b9b9c5b9cb434ebea7892057ae4b889 Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> 
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
NFC: pn533: Add missing usb_put_dev 2013-04-11T14:29:10+00:00 Marina Makienko makienko@ispras.ru 2013-02-26T07:41:18+00:00 7c5a54fb869d980c2a3c0972fe1e22816dd5b7b2 Add missing usb_put_dev on failure path in pn533_probe(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Marina Makienko <makienko@ispras.ru> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> 
Add missing usb_put_dev on failure path in pn533_probe().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Marina Makienko <makienko@ispras.ru>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
NFC: pn533: Increase version number 2013-04-11T14:29:08+00:00 Waldemar Rymarkiewicz waldemar.rymarkiewicz@tieto.com 2013-04-03T06:02:16+00:00 495af72e1434724559e756ba32d9040125ac506b Major features added in 0.2 version: * frame ops added to support wider set of devices * support of ACS ACR122U Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> 
Major features added in 0.2 version:

* frame ops added to support wider set of devices
* support of ACS ACR122U

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
NFC: pn533: Remove unused pn533_cmd_complete_t 2013-04-11T14:29:08+00:00 Waldemar Rymarkiewicz waldemar.rymarkiewicz@tieto.com 2013-04-03T06:02:15+00:00 96aac226a4cb19fde1bb3593fcbb8b2a86e7b0f5 Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> 
Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
NFC: pn533: Add pn533_abort_cmd procedure 2013-04-11T14:29:07+00:00 Waldemar Rymarkiewicz waldemar.rymarkiewicz@tieto.com 2013-04-03T06:02:14+00:00 10cff29af6ae12725d4cb338abb5768e139b808a pn533_abort_cmd() aborts last command sent to the controller and cancels already requested urb. As ACR122U does not support any mechanism (as ACK for standard PN533) which aborts last command this cannot be issued for this device. Otherwise, acr122u will behave in an unstable way. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> 
pn533_abort_cmd() aborts last command sent to the controller
and cancels already requested urb.

As ACR122U does not support any mechanism (as ACK for standard
PN533) which aborts last command this cannot be issued for this
device. Otherwise, acr122u will behave in an unstable way.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
NFC: pn533: Add support for ACS ACR122U reader 2013-04-11T14:29:07+00:00 Waldemar Rymarkiewicz waldemar.rymarkiewicz@tieto.com 2013-04-03T06:02:13+00:00 53cf48399ad3b08c9115b4fce73dee0b6e726c91 ACS ACR122U is an USB NFC reader, PC/SC and CCID compilant, based on NXP PN532 chip. Internally, it's build of MCU, PN532 and an antenna. MCU makes the device CCID and PC/SC compilant and provide USB connection. In this achitecture, a host cannot talk directly to PN532 and must rely on MCU. Luckily, MCU exposes pseud-APDU through PC/SC Escape mechanism which let the host to transmit standard PN532 commands directly to PN532 chip with some limitations. The frame roughly looks like: CCID header | APDU header | PN532 header (pc_to_rdr_escape) | (pseudo apdu Direct Tramsmit) | (len, TFI, cmd, params) Accordign to limitations, ACR122U does't provide any mechanism to abort last issued command. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> 
ACS ACR122U is an USB NFC reader, PC/SC and CCID compilant, based
on NXP PN532 chip.

Internally, it's build of MCU, PN532 and an antenna. MCU makes the
device CCID and PC/SC compilant and provide USB connection.

In this achitecture, a host cannot talk directly to PN532 and must
rely on MCU. Luckily, MCU exposes pseud-APDU through PC/SC Escape
mechanism which let the host to transmit standard PN532 commands
directly to PN532 chip with some limitations.

The frame roughly looks like:

    CCID header    |          APDU header           |    PN532 header
(pc_to_rdr_escape) |  (pseudo apdu Direct Tramsmit) | (len, TFI, cmd, params)

Accordign to limitations, ACR122U does't provide any mechanism to
abort last issued command.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
NFC: pn533: Add protocol type for frame ops 2013-04-11T14:29:06+00:00 Waldemar Rymarkiewicz waldemar.rymarkiewicz@tieto.com 2013-04-03T06:02:12+00:00 58520373d8aff974f4b3f1bd9eb84c1ff3d6bd8b As not all devices require ACK confirmation of every request sent to the controller, differentiate two protocol types. First one, request-ack-response and the second one request-response type. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> 
As not all devices require ACK confirmation of every request sent to the
controller, differentiate two protocol types.

First one, request-ack-response and the second one request-response type.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
NFC: pn533: Move wq_in_error to cmd context 2013-04-11T14:29:06+00:00 Waldemar Rymarkiewicz waldemar.rymarkiewicz@tieto.com 2013-04-03T06:02:11+00:00 f87bc9fb62780970ff437e9d556b143cbe9f6528 Rename 'wq_in_error' field to more relevant 'status' and move it to cmd context struct. Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> 
Rename 'wq_in_error' field to more relevant 'status'
and move it to cmd context struct.

Signed-off-by: Waldemar Rymarkiewicz <waldemar.rymarkiewicz@tieto.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>