[Replicant] Reply to IRC questions about the GT-I9305 modem
Jack Knightly
j__a__k at hotmail.com
Sat Jun 11 09:23:36 UTC 2022
Thanks for the reply. Sorry I have taken a while to reply to your reply!
I am going to give it a go on postmarketOS now. I had a look at msm-firmware-loader yesterday at it definitely wouldn't have worked as it only looks at partitions that we don't have on the midas devices! So I will amend it and see what it does.
I'll be in touch if I get any further.
Thanks a lot,
Jack K
________________________________
From: J05HYYY <lovell.joshyyy at gmail.com>
Sent: 17 May 2022 19:15
To: Jack Knightly <j__a__k at hotmail.com>
Cc: J05HYYY via Replicant <replicant at osuosl.org>; Denis 'GNUtoo' Carikli <GNUtoo at cyberdimension.org>
Subject: Re: [Replicant] Reply to IRC questions about the GT-I9305 modem
Hi Jack,
Sorry I did not respond sooner. I have an intermittent
internet connection.
It will [therefore] be difficult for me to arrange a specific time to
chat via IRC.
To summarise, what I have tried re postmarketos is:
Installing the following packages ...
firmware-samsung-midas, modem-qcom-msm-mainline-common, msm-modem,
msm-firmware-loader, soc-samsung-exynos4412, linux-postmarketos-exynos4
And trying scintill's kernel from replicant contrib git with
postmarketos. I used abootimg to repack the kernel in the boot.img
which I flashed using heimdall
I couldn't, however, get the modem working with postmarketos.
Most of what I do isn't very novel, it's [mostly] just testing other
people's work for reproducibility ... I managed to get SMS and LTE
internet working (minus audio in voice calls) on the i9305 by compiling
scintill's fork of replicant 6, but didn't have any success with pmos.
That fork, in contrib, uses ofono. For practical reasons because of
generic diallers, messaging apps, etc. I feel ofono is probably the
preferred route.
If you manage to get it working w/ postmarket, I'd be interested to hear
about it. For myself, I've hit a bit of a dead end regarding the i9305.
If you have any other queries about what I've tried with the device, or
any other aspect of my work, feel free to email me and I'll try to
respond in time.
All the best,
Josh
On Tue, 12 Apr 2022 07:25:35 +0000
Jack Knightly <j__a__k at hotmail.com> wrote:
> Hi Josh,
>
> I'm about to try to bring up modem functionality on GT-N7105 (which
> has the same modem as GT-I9305) in postmarketOS (whose kernel is
> mainline + a few patches). Are you on Replicant IRC so we can chat
> about your work so far? Would be great to collaborate on getting a
> working dt node in both i9305 and n7105 upstream dts.
>
> Thanks,
>
> Jack K
>
> ________________________________
> From: Replicant <replicant-bounces at osuosl.org> on behalf of J05HYYY
> via Replicant <replicant at osuosl.org> Sent: 09 November 2021 20:10
> To: Denis 'GNUtoo' Carikli <GNUtoo at cyberdimension.org>
> Cc: replicant at osuosl.org <replicant at osuosl.org>
> Subject: Re: [Replicant] Reply to IRC questions about the GT-I9305
> modem
>
> Hi, sorry for the late reply, responding to the list as most
> appropriate.
>
> An update on the i9305...
>
> 1) I realised I was compiling replicant with the wrong kernel.
> 2) I managed to get SMS messaging to work on the i9305, using the
> correct kernel. Nothing in code was changed, it was just a mistake
> whilst building the images (due to me working mostly offline). The
> scintill's smdk kernel disables selinux at boot, so I didn't even need
> to bother making the rules for it.
> 3) In the mean time I had a look at postmarketOS. I tried their kernel
> (defaults) and didn't get the modem to work.
> 4) I tried using scintill's smdk kernel with it. Unfortunately it
> didn't boot with postmarketOS.
> 5) I tried modifying postmarketOS's exynos4 kernel to include support
> for WDM etc in the defconfig. That didn't work as far as I could tell.
> 6) I tried the replicant mainline kernel in postmarketOS but forgot to
> cat the dtb, so it didn't work... I'm not even sure if this has
> support yet for the modem either way?
>
> To cut a long story short. Scintill's code and/with my patches work
> for the i9305, Replicant 6.0 The LTE works for the internet, and
> SMS's work. All that doesn't work is the audio during voice calls,
> other than that, the calls seem to connect OK.
>
> The images can be found here:
>
> https://github.com/publicsite/ReplicantBuilds/releases
>
> (Note I deleted the old pre-release due to the build error. The commit
> you are looking for is 958e1b2 with tag scintill-replicant-6.0)
>
> ... Hopefully I've done everything correctly this time.
>
> Apologies if I am slow to, or do not respond, I'm usually away from my
> email.
>
> ... It's at this point I think I can't be of much more use, I don't
> think I'd be capable myself of getting the audio working,
>
> Josh
> _______________________________________________
> Replicant mailing list
> Replicant at osuosl.org
> https://lists.osuosl.org/mailman/listinfo/replicant
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