29 lines
1007 B
Markdown
29 lines
1007 B
Markdown
|
# NXP PN80T/PN81A support
|
|||
|
|
|
|||
|
|
libese support for the PN80T series of embedded secure elements is
|
|||
|
|
implemented using a common set of shared hardware functions and
|
|||
|
|
communication specific behavior.
|
|||
|
|
|
|||
|
|
The common behavior is found in "common.h". Support for using Linux
|
|||
|
|
spidev іs in "linux\_spidev.c", and support for using a simple nq-nci
|
|||
|
|
associated kernel driver is in "nq\_nci.c".
|
|||
|
|
|
|||
|
|
# Implementing a new backend
|
|||
|
|
|
|||
|
|
When implementing a new backend, the required header is:
|
|||
|
|
|
|||
|
|
#include "../include/ese/hw/nxp/pn80t/common.h"
|
|||
|
|
|
|||
|
|
Once included, the implementation must provide its own
|
|||
|
|
receive and transmit libese-hw functions and a struct Pn80tPlatform,
|
|||
|
|
defined in "../include/ese/hw/nxp/pn80t/platform.h".
|
|||
|
|
|
|||
|
|
Platform requires a dedicated initialize, release, wait functions as
|
|||
|
|
well support for controlling NFC\_VEN, SVDD\_PWR\_REQ, and reset.
|
|||
|
|
|
|||
|
|
See the bottom of the other implementations for an example of the
|
|||
|
|
required exports.
|
|||
|
|
|
|||
|
|
Any other functionality, such as libese-sysdeps, may also need to be
|
|||
|
|
provided separately.
|