Re: NXP NFC version and ACPI

From: Sedat Dilek <sedat.dilek@gmail.com>
To: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Samuel Ortiz <sameo@linux.intel.com>,
	linux-wireless@vger.kernel.org, linux-nfc@lists.01.org,
	robert.dolca@intel.com, oleg.zhurakivskyy@intel.com,
	clement.perrochaud@effinnov.com, charles.gorand@effinnov.com,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: Re: NXP NFC version and ACPI
Date: Tue, 14 May 2019 08:52:15 +0200	[thread overview]
Message-ID: <CA+icZUWLBjTtcFS0Fo8M5gSb90GbEUpetUgwr3fy=NxGAVqCyw@mail.gmail.com> (raw)
In-Reply-To: <5ae87449-83a1-ecce-c72c-b4742c507497@linaro.org>

On Tue, May 14, 2019 at 8:43 AM Daniel Lezcano
<daniel.lezcano@linaro.org> wrote:
>
> On 13/05/2019 22:15, Sedat Dilek wrote:
> > On Wed, Dec 5, 2018 at 8:38 AM Daniel Lezcano <daniel.lezcano@linaro.org> wrote:
> >>
> >>
> >> Hi,
> >>
> >> the discussion reference is on github [1].
> >>
> >> I acquired a Lenovo x280 with a NFC chip. It is unclear what chip is it
> >> really, it is called NXP NPC300 which could be a PN7xxx chip range.
> >>
> >> A hacked version of an old deprecated out-of-tree module made the PN5xxx
> >> to work with my laptop but I suspect it brought some subtle instability
> >> on my system.
> >>
> >> Now it would be nice to have this correctly supported upstream.
> >>
> >> I dumped the ACPI DSDT table and got the id NXP1001. This one is not
> >> listed in the match table of the nxp-nci driver.
> >>
> >>  - is the driver missing for the so called NXP NPC300 ?
> >>  - should the NXP1001 matching string to be added to nxp-nci?
> >>  - is my firmware sending me garbage ?
> >>
> >> Thanks in advance for any input
> >>
> >
> > [ CC Andy ]
> >
> > Hi Daniel,
> >
> > I was able to get a NXP NPC300 NFC device run on Lenovo ThinkPad T470.
> >
> > Look at the patchset "[PATCH v2 00/12] NFC: nxp-nci: clean up and
> > support new ID".
> > I have tested on top of Linux v5.1.1.
>
> Hi Sedat,
>
> yes, I have them see. Thanks for letting me know.
>
> > Here I have set...
> >
> > scripts/config -m NFC_NCI -m NFC_NXP_NCI -m NFC_NXP_NCI_I2C -e
> > PINCTRL_SUNRISEPOINT
> >
> > Please give this a try and report.
>
> My laptop is the first one I have with a NFC reader, so I'm not used to
> test this as it was not working yet.
>
> I booted the machine with a 5.1.1, the series applied on top, and the
> config options set as mentioned above.
>
> The nxp-nci kernel module is loaded and neard is installed.
>
> I used the sniffing tool with the command libnfc -d nfc0 -n but when
> passing my NFC devices on the laptop's NFC mark, nothing happens.
>
> Is that correct?
>

Hi Daniel,

I am new to the topic Linux NFC.

I have installed neard (daemon) v0.16 and neard-tools from Debian/buster AMD64.

root@iniza:~# systemctl is-active neard.service
active

root@iniza:~# nfctool --list
nfc0:
          Tags: [ ]
          Devices: [ ]
          Protocols: [ Felica MIFARE Jewel ISO-DEP NFC-DEP ]
          Powered: No
          RF Mode: None
          lto: 150
          rw: 15
          miux: 2047

root@iniza:~# nfctool --poll -d nfc0
Start polling on nfc0 as initiator

...

Throwing my YubiKey Neo-5 NFC on my ThinkPad T470 NFC sticker shows me...

Targets found for nfc0
  Tags: [ tag0 ]
  Devices: [ ]

Hope that helps.

Regards,
- Sedat -