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README.md

      1 # NXP PN80T/PN81A support
      2 
      3 libese support for the PN80T series of embedded secure elements is
      4 implemented using a common set of shared hardware functions and
      5 communication specific behavior.
      6 
      7 The common behavior is found in "common.h".  Support for using Linux
      8 spidev s in "linux\_spidev.c", and support for using a simple nq-nci
      9 associated kernel driver is in "nq\_nci.c".
     10 
     11 # Implementing a new backend
     12 
     13 When implementing a new backend, the required header is:
     14 
     15     #include "../include/ese/hw/nxp/pn80t/common.h"
     16 
     17 Once included, the implementation must provide its own
     18 receive and transmit libese-hw functions and a struct Pn80tPlatform,
     19 defined in "../include/ese/hw/nxp/pn80t/platform.h".
     20 
     21 Platform requires a dedicated initialize, release, wait functions as
     22 well support for controlling NFC\_VEN, SVDD\_PWR\_REQ, and reset.
     23 
     24 See the bottom of the other implementations for an example of the
     25 required exports.
     26 
     27 Any other functionality, such as libese-sysdeps, may also need to be
     28 provided separately.
     29