baseband-devel

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2022 discussions

[PATCH 1/4] Comment out print duplicating debug output.
by Max 30 Aug '13

30 Aug '13

--- src/host/layer23/src/common/l1ctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/host/layer23/src/common/l1ctl.c b/src/host/layer23/src/common/l1ctl.c index 91bab89..80aa4df 100644 --- a/src/host/layer23/src/common/l1ctl.c +++ b/src/host/layer23/src/common/l1ctl.c @@ -244,7 +244,7 @@ static int rx_ph_data_ind(struct osmocom_ms *ms, struct msgb *msg) } if (dl->fire_crc >= 2) { -printf("Dropping frame with %u bit errors\n", dl->num_biterr); +//printf("Dropping frame with %u bit errors\n", dl->num_biterr); LOGP(DL1C, LOGL_NOTICE, "Dropping frame with %u bit errors\n", dl->num_biterr); msgb_free(msg); -- 1.8.1.2 --------------000206000400030101050401 Content-Type: text/x-patch; name="0002-Declare-constant-parameters-as-constant.patch" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="0002-Declare-constant-parameters-as-constant.patch"

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Re: UI work - qemu and key repeating
by Craig Comstock 30 Aug '13

30 Aug '13

> > I'm writing some UI/firmware [...] > That sounds neat... are you doing it in some visible git repository perchance? I'm just hacking on layer1/main.c right now. Not even sure I would put in a repo since I want to implement some form of t-9 character and word fanciness. Maybe I could make that a module or think of an open-source/free paradigm for entering text w/ the keypad. http://www.google.com/patents?id=PmgCAAAAEBAJ (T9) http://www.google.com/patents/US3967273 (funny bell labs method using two key presses always) (the list goes on and on I think...) My thinking is that I might start with this hacked layer1 and gradually try to bring bits of mobile into the firmware/ui. Also just wanting to fiddle around with how the phone will "feel" with a console interface. aka UI prototyping. Cheers, Craig

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UI work - qemu and key repeating
by Craig Comstock 28 Aug '13

28 Aug '13

Was wondering if anyone has tried to use qemu to make a device emulator? I'm writing some UI/firmware and it seems like it might be a nice way to iterate on code. Also was thinking I would need to rework keypad.c so that I can get key hold/repeat events since I want to know when a key is being held down at some fairly short interval. Any suggestions/previous work/cautions? Thanks, Craig

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chainload.compalram.bin missing?
by Craig Comstock 23 Aug '13

23 Aug '13

I was trying to load some apps to a Motorola C139 and found that after building osmocom-bb that there were no chainload image files built. Am I using the wrong branch somehow? Are the instructions out of date on this page: http://bb.osmocom.org/trac/wiki/MotorolaC140 ./osmocon -p /dev/ttyUSB0 -m c140 -c ../../target/firmware/board/compal_e86/layer1.highram.bin ../../target/firmware/board/compal_e86/chainload.compalram.bin The page mentions something about a magic value that must be placed into memory for the bootloader... could that be added to osmocon somehow so that specifying -m c140 takes care of it? "After the download has completed, it expects the magic string "1003" (0x31 0x30 0x30 0x33) at the RAM address 0x803ce0" Thanks, Craig

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Uplink sniffing
by George Andguladze 22 Aug '13

22 Aug '13

Dear all, I was wondering if uplink sniffing is enabled by default in latest firmware as file "osmocom-bb/src/target/firmware/layer1/prim_sniff.c" has been modified and does not hold "#if 0" bit at line 288 anymore. Thanks, George Andguladze

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howto use osmocom / mobile app without a sim-card
by "Robert Köberl" 20 Aug '13

20 Aug '13

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osmocombb / mobile app ... sms without simcard
by robert 16 Aug '13

16 Aug '13

hello! how is it possible to send a sms without a sim-card in my C123? with simcard its possible ... :-) how to use "sim testcard 1"?

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Re: Calypso/Iota/Rita chip recommendations
by msokolov＠ivan.Harhan.ORG 15 Aug '13

15 Aug '13

Peter Stuge <peter(a)stuge.se> wrote: > > Actually my hope is to build a quad-band phone > That would be neat too. > [...] > I was thinking about phone-as-BTS, but same principle, no > (or just the appropriate) filters. Unfortunately these two goals (quad-band support on the one hand, and filter hackability on the other hand) seem to be in conflict. It seems to me that trying to build a quad-band phone using separate antenna switch and Rx SAW filter components would be very messy, probably too messy for an RF-clean PCB layout - hence necessitating the use of an integrated RF front-end part that has all that mess hidden inside. (See ftp.ifctf.org/pub/GSM/Calypso/M034F.pdf for an example of wha I mean.) But using an integrated RF FEM like that M034F would surely preclude the possibility of filter hacking... Once again, my goal is to produce a Totally Free Phone for everyday use in one's pocket/purse, not GSM hacking - and I reason I must not be the only person on this list who desires such; I reason that there must be other lurkers on this list who watch with frustration as the years go by, there are all kinds of hacks made, but virtually zero progress toward an end-user-usable Free phone. It's obvious that OsmocomBB and FreeCalypso will always be two separate projects: the former focused on GSM hacking and security research, the latter on everyday-phone end-user needs. All I'm hoping for is that the two projects could be at least somewhat amicable, and cooperate in things like amassing hardware knowledge - rather than be all-out hostile. SF

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Re: Calypso/Iota/Rita chip recommendations
by msokolov＠ivan.Harhan.ORG 15 Aug '13

15 Aug '13

Sylvain Munaut <246tnt(a)gmail.com> wrote: > And why exactly should we help you when you publicly stated [1] that > you'd rather shoot us then yourself > [1] http://lists.openmoko.org/pipermail/community/2012-March/066565.html A little clarification is in order: * In my past negative interactions with certain individuals who have previously served as employees or contractors of Openmoko-Inc and who currently serve as lead developers of OsmocomBB, the crux of the dispute was those individuals' unwillingness to share with all Humanity (yes, *all Humanity*, *not* "me" - I could be dead tomorrow and nothing will change) those COFF object files with symbolic information which Om-Inc had received from TI, and/or their voluntary choice to live and/or accept voluntary citizenship in a country that deems such sharing to be illegal - obviously a voluntary choice which I have NOT made. * There has been one major change in the year and a half since that post of mine quoted by Sylvain - I have discovered this: http://scottn.us/downloads/peek/ [In case ScottN, whoever he is, takes the ware down from his website, it's already archived on my mini-Wikileaks at ftp.ifctf.org/pub/GSM/LoCosto - but for as long as ScottN's copy is up, it should be much faster.] The discovery of the above source (which is almost complete source with very little in object-only form) makes it now unnecessary for me to sacrifice my life in a gunfire exchange with German or Russian police in order to free Openmoko's COFF objects - I'm pretty confident in my ability to recreate something very similar, but full-source from this recently discovered "peek" ware and other more recently discovered leaks, also on my FTP site. > than help us in any way ... It is true that I have chosen to use a different Free Software GSM stack (plus UI etc) implementation for my personal use, hence any contributions from me to the software side of the OsmocomBB project are indeed unlikely. However, I am hoping that the project to build new free phone hardware can be done as a joint project between the two camps. The hardware design files will be free for anyone to download and do with as s/he pleases, and obviously each user is free to run whatever software s/he likes: OsmocomBB, FreeCalypso, or some 3rd or 4th or other choice that may exist in the future. SF

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Calypso/Iota/Rita chip recommendations
by msokolov＠ivan.Harhan.ORG 15 Aug '13

15 Aug '13

Hello fellow Calypso phone hackers, Not having found an already-existing Calypso phone that is exactly to my liking (of the ones supported by OsmocomBB, the Pirelli comes closest to my ideal, but even that one has a few things I don't like, and most important of all, the availability of these phones on the market has already shrunk down to zilch - so the day is near when it will be just as legendary-unobtainium as the TSM30), I am setting out to build my own. I am setting out to design and build a new Calypso/Iota/Rita phone, one that will be specifically designed to run Free Software as its firmware: either OsmocomBB or FreeCalypso (my own personal alternative free GSM firmware implementation), up to each user's individual choice. My design will be a phone, not a modem (i.e., complete with the essential UI elements, as in LCD and keypad), and it will be a dumb/plain/feature phone, i.e., the Calypso will be the main/sole CPU - not a smartphone like Openmoko etc. Before I tackle the difficult problem of either making a new plastic case or choosing some existing one, I will start out by building a bare GSM development board - basically a complete phone sans case, built on a non-form-factor-controlled PCB. This development board will probably end up being very similar to the one which Harard Welte has announced here a little over a year ago, but with one major difference: *all* hardware design source files (as in schematic, BOM and PCB layout source) will be openly released, with absolutely nothing withheld, and in fact the development itself will take place in a public source control repository. Therefore, regardless of whether I succeed or fail in the ultimate goal of producing a complete phone packaged in a plastic case, there will be an Open Source Hardware design for a working Calypso GSM board which others will be able to use as a starting point - something that wouldn't be possible (or at least less convenient) with Harald's PDF-schematics-only version. However, the above vaporware announcement is not the real purpose of my post. Instead, I am currently in the negotiations with several Chinese sellers of Calypso/Iota/Rita/etc chips, and I'm soliciting advice on exactly which variant of each chip I should use: * The Calypso chip in both GTA02 and Pirelli DP-L10 (the two existing designs I use as references to be copied whenever it makes sense) is PD751992AZHH. I can easily get this exact part, but I can also get ones with GHH or AGHH suffixes. I'm venturing a guess in that the A seems to go with the 751992 number, i.e., it's part of the die revision, and as to the difference between GHH and ZHH, I'm guessing that it's the RoHS difference: I'm guessing that GHH has balls made of real SnPb solder, whereas ZHH has the "lead-free solder" junk substituted instead. Because I'm very fortunate to NOT live in the EU or anywhere near, I'm not subject to any EU-nian laws like the RoHS idiocy, and I generally prefer to use real SnPb solder whenever possible. So I wonder: can someone confirm if indeed PD751992AGHH is the exact same Calypso chip as the PD751992AZHH used in the GTA02 and Pirelli phones, but with real non-RoHS solder balls instead, or is it something different? * Which Iota variant is better: TWL3014 or TWL3025? I'm thinking TWL3025, reasoning that it being newer probably means having some internal bugfixes or minor improvements, but perhaps the older TWL3014 is better instead? * As to the Rita, the base part number appears to be TRF6151C in all phones currently supported by OsmocomBB, so I'm sticking with this base part number. But there are additional suffixes after the 'C' in that P/N - would anyone happen to know what these suffixes mean, and which variant I should use? * For the RF PA, I see that the GTA02 uses RF3166 from RF Micro Devices (one of Harald Welte's posts regarding his planned Calypso board also mentioned him planning to use the same PA), whereas the Pirelli and most other feature phones supported by OsmocomBB tend to use Skyworks parts instead. Which is better? I'm currently leaning toward the RF3166, but if someone has a recommendation that is actually backed by some knowledge/reason rather than just a guess like mine, I'll listen. :-) * If I do go with the RF3166, any idea as to what the different suffix versions are? TIA for any input, SF

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