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View Code? Open in Web Editor NEWImplementation of NFC NCI state machine
License: Other
libncicore's Introduction
NFC NCI state machine implementation ==================================== Implements all the states defined in NCI 1.0 spec: RFST_IDLE RFST_DISCOVERY RFST_W4_ALL_DISCOVERIES RFST_W4_HOST_SELECT RFST_POLL_ACTIVE RFST_LISTEN_ACTIVE RFST_LISTEN_SLEEP as well as a limited subset of NCI 2.0 features. This library doesn't provide any hardware access methods. It's up to the code linking with this library to implement interfaces described by nci_hal.h Optionally, NFC technologies supported by the chip can be specified in /etc/libncicore.conf file, e.g. [Configuration] Technologies = A,B,F By default all technologies are assumed to be supported.
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libncicore's Issues
P2P not working on ST NFC chips
We are in the process of merging nfcd P2P mode into Ubuntu Touch and during testing it
turns out that not all our test devices were able to establish a connection.
The Volla Phone/GS290 and the Pixel 3a use NFC chips made by ST. The Pixel 3a is untested as of yet,
but on the GS290 it didn't detect the Android device ready for Android Beam.
Instead of activation parameters we see "RF Tech Parameters" in the output.
Here is some log output of nfcd during attempting to establish a P2P connection:
https://paste.myself5.de/vegazoguli.rb
The nfcdep-service is started at: 2021-01-19 21:18:09 [nfc-core] NFC mode 0x07
Stuck in ERROR state when negotiating poll modes
Starting up a nfcd session without reverting this commit lands us in the ERROR state: f505333
Specifically, the output looks like this: https://paste.ubuntu.com/p/nXggHnmHwR/
This happens on Ubuntu Touch on the Volla Phone and Pixel 3a (arm64 builds).
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