Date: Sun, 27 Feb 2022 15:44:17 +0000 From: Marco Devesas Campos <devesas.campos@gmail.com> To: freebsd-arm@freebsd.org Cc: Ronald Klop <ronald-lists@klop.ws> Subject: Re: [PATCH] Experimental vchiq and bcm2835_audio support for arm64 Message-ID: <E7561C63-D0DF-4F38-9101-12B0D473982E@gmail.com> In-Reply-To: <106195874.50.1644310150579@localhost> References: <A0775CDC-7382-4A15-8131-482572032308@gmail.com> <a02d8dd2-020a-3125-3418-08f0a069aa5e@klop.ws> <8EC05647-00D9-455B-98A9-B83A33DDFC5D@gmail.com> <48190d6a-fc5d-7da9-ddfd-fded48d429db@klop.ws> <106195874.50.1644310150579@localhost>
next in thread | previous in thread | raw e-mail | index | archive | help
Hi, List
On the back of Ronald Klop's comments (thanks!), I went and got myself =
an
RPI 4 and it turns out all that was need was adding the right dtb
reference and it all works (seemingly) fine (incremental patch =
attached).
One of the potential projects highlighted in the latest call for =
proposals
was exactly to get hdmi audio output in 64 bit Pis, viz. the 400-s. If
anyone who voted for that reads this list, wd be nice to get some input =
on
the patches.
Best,
Marco
diff --git a/sys/contrib/vchiq/interface/vchiq_arm/vchiq_kmod.c =
b/sys/contrib/vchiq/interface/vchiq_arm/vchiq_kmod.c
index dc18678b99a3..344267ff0c1c 100644
--- a/sys/contrib/vchiq/interface/vchiq_arm/vchiq_kmod.c
+++ b/sys/contrib/vchiq/interface/vchiq_arm/vchiq_kmod.c
@@ -83,6 +83,7 @@ static struct bcm_vchiq_softc *bcm_vchiq_sc =3D NULL;
static struct ofw_compat_data compat_data[] =3D {
{"broadcom,bcm2835-vchiq", BSD_DTB},
{"brcm,bcm2835-vchiq", UPSTREAM_DTB},
+ {"brcm,bcm2711-vchiq", UPSTREAM_DTB},
{NULL, 0}
};
=20
> On 8 Feb 2022, at 08:49, Ronald Klop <ronald-lists@klop.ws> wrote:
>=20
> Van: Ronald Klop <ronald-lists@klop.ws>
> Datum: maandag, 7 februari 2022 21:05
> Aan: Marco Devesas Campos <devesas.campos@gmail.com>, =
freebsd-arm@freebsd.org
> Onderwerp: Re: [PATCH] Experimental vchiq and bcm2835_audio support =
for arm64
>=20
> On 2/6/22 14:46, Marco Devesas Campos wrote:
> > Hi Ronald,
> >
> > Thanks so much for trying out the patch out.
> >
> >> On 6 Feb 2022, at 13:05, Ronald Klop <ronald-lists@klop.ws> wrote:
> >>
> >> Hi,
> >>
> >> I compiled this on a RPI4 + 14-CURRENT. It boots, but I see no =
difference in available devices.
> >> I can try to boot it on a RPI3B+ on another time.
> >
> > I *think* the GPU/VC in RPI-4 is a very different beast from the =
others. I'll
> > look into it, but if you could give it a try on the 3+ I'd be much =
obliged.
> >
> >>
> >> What would be the expected outcome? Where should I look at (or =
listen to)?
> >>
> >
> > You should see something like
> >
> > vchiq0: <BCM2835 VCHIQ> mem 0x7e00b840-0x7e00b87b irq 54 on =
simplebus0
> > vchiq: local ver 8 (min 3), remote ver 8.
> > pcm0: <VCHIQ audio> on vchiq0
> >
> > in your dmesg output.
> >
> > The file /dev/vchiq should exist, as well as the following sysctl-s =
(I'm
> > assuming no other audio devices are attached)
> >
> > % sysctl dev.pcm
> > dev.pcm.0.trace: 0
> > ...
> > dev.pcm.0.dest: 0
> > ...
> > dev.pcm.0.%parent: vchiq0
> > ...
> > dev.pcm.0.%driver: pcm
> > dev.pcm.0.%desc: VCHIQ audio
> > =E2=80=A6
> >
> > Then if you `cat < /dev/random > /dev/dsp` you should hear some =
static coming
> > out of whatever is connected to hdmi (maybe headphones too? =
otherwise try
> > setting `sysctl dev.pcm.0.dest=3D1`)
> >
> > Best,
> > Marco
>=20
>=20
> Hi,
>=20
> Booted the patched 14-CURRENT on the RPI3B+.
>=20
> dmesg diff:
> +vchiq0: <BCM2835 VCHIQ> mem 0x7e00b840-0x7e00b87b irq 54 on =
simplebus0
> +vchiq: local ver 8 (min 3), remote ver 8.
> +pcm0: <VCHIQ audio> on vchiq0
>=20
> [root@rpi3 ~]# cat /dev/sndstat
> Installed devices:
> pcm0: <VCHIQ audio> (play) default
> No devices installed from userspace.
>=20
> [root@rpi3 ~]# sysctl dev.pcm
> dev.pcm.0.trace: 0
> dev.pcm.0.starved: 0
> dev.pcm.0.freebuffer: 40000
> dev.pcm.0.underruns: 0
> dev.pcm.0.retrieved: 0
> dev.pcm.0.submitted: 0
> dev.pcm.0.callbacks: 0
> dev.pcm.0.dest: 0
> dev.pcm.0.mode: 3
> dev.pcm.0.bitperfect: 0
> dev.pcm.0.buffersize: 0
> dev.pcm.0.play.vchanformat: s16le:2.0
> dev.pcm.0.play.vchanrate: 48000
> dev.pcm.0.play.vchanmode: fixed
> dev.pcm.0.play.vchans: 1
> dev.pcm.0.%parent: vchiq0
> dev.pcm.0.%pnpinfo:
> dev.pcm.0.%location:
> dev.pcm.0.%driver: pcm
> dev.pcm.0.%desc: VCHIQ audio
> dev.pcm.%parent:
>=20
>=20
> To play some audio I need to search some headphones first. :-)
>=20
> Ronald.
> =20
>=20
>=20
> Good morning,
>=20
> Found headphones with a cable on the attic. Plugged it into the audio =
jack and played an mp3. Amazing!
>=20
> Regards,
> Ronald.
> =20
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?E7561C63-D0DF-4F38-9101-12B0D473982E>