This series of patches implements the first part of the Near Field Communication (NFC) subsystem. A NFC subsystem is required to standardize the NFC device drivers development and to create an unified userspace interface. This implementation focus in one of the three NFC use cases: the tag read/write. However the architecture was designed with the card emulation and peer-to-peer use cases in mind. The subsystem is divided in some parts. The 'core' is responsible for providing the device driver interface. On the other side, it is also responsible for providing an interface to the control operations and low-level data exchange. The control operations are available to userspace via generic netlink. The most important operations are NFC_CMD_START_POLL and NFC_CMD_STOP_POLL that control the polling for targets. The event NFC_EVENT_TARGETS_FOUND is emitted to return polling results. The low-level data exchange interface to userspace is provided by a new socket family: PF_NFC. The NFC_SOCKPROTO_RAW uses SOCK_SEQPACKET to perform raw communication with NFC targets. The address family (AF_NFC) has the local device id, the NFC target id and the NFC protocol as fields. Further, the low-level data exchange interface provided by the core can also be used to implement the LLCP protocol. To test the implementation, we developed the NXP pn533 driver and an user application example. The driver implementation is included in this patch series. The user application example can be found at http://code.openbossa.org. Aloisio Almeida Jr (3): NFC: add NFC socket family NFC: pn533: add NXP pn533 nfc device driver NFC: add Documentation/networking/nfc.txt Lauro Ramos Venancio (3): NFC: add nfc subsystem core NFC: add nfc generic netlink interface NFC: add the NFC socket raw protocol Documentation/networking/nfc.txt | 127 +++ drivers/Kconfig | 2 - drivers/Makefile | 1 + drivers/nfc/Kconfig | 24 +- drivers/nfc/Makefile | 3 + drivers/nfc/pn533.c | 1629 ++++++++++++++++++++++++++++++++++++++ include/linux/nfc.h | 136 ++++ include/linux/socket.h | 4 +- include/net/nfc.h | 149 ++++ net/Kconfig | 1 + net/Makefile | 1 + net/core/sock.c | 6 +- net/nfc/Kconfig | 24 + net/nfc/Makefile | 9 + net/nfc/af_nfc.c | 98 +++ net/nfc/core.c | 403 ++++++++++ net/nfc/netlink.c | 446 +++++++++++ net/nfc/nfc.h | 110 +++ net/nfc/rawsock.c | 351 ++++++++ 19 files changed, 3506 insertions(+), 18 deletions(-) create mode 100644 Documentation/networking/nfc.txt create mode 100644 drivers/nfc/pn533.c create mode 100644 include/linux/nfc.h create mode 100644 include/net/nfc.h create mode 100644 net/nfc/Kconfig create mode 100644 net/nfc/Makefile create mode 100644 net/nfc/af_nfc.c create mode 100644 net/nfc/core.c create mode 100644 net/nfc/netlink.c create mode 100644 net/nfc/nfc.h create mode 100644 net/nfc/rawsock.c -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
