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2024-02-06mobile: fix GAPK I/O producing too many UL framesVadim Yanitskiy2-2/+1
GAPK I/O is currently generating too many UL voice frames, causing Tx queue overflow in the L1 PHY. Change the logic to make DL voice frames drive the Uplink processing chain, like we do for CSD. Change-Id: I3a7fa223cb592acd5b850819e0682c9c8f81e9d1
2024-02-06mobile: init TCH state earlier (on receipt of CC ALERTING)Vadim Yanitskiy1-0/+1
During a Mobile Originating voice call, we would normally start receiving traffic indications with ringback tone (or even some melody) before the call gets CONNECTed. So in order for the user to be able to hear that, we need to init the voice call handler earlier (on receipt of CC ALERTING message). We should not be transmitting voice/data frames before the call gets CONNECTed, so add 'rx_only' flag to the TCH state. In tch_send_msg() drop msgb if this flag is set. Rx only mode makes no sense for data calls, so in tch_recv_cb() we discard received DL frames and thus do not trigger sending UL frames. Change-Id: Idd32c823639cc1f9999d77fcefe7e260e31a85ec Related: OS#4396
2024-02-05layer23/modem: handle and forward L1CTL UL BLOCK.cnfVadim Yanitskiy2-0/+2
Change-Id: I9255ac17529b5ac260f9a0f141f3af6b3b72a802 Depends: libosmo-gprs.git I145b9586f83ae0235b4648916bd44996e8dc57f0
2024-01-24mobile: VTY: rework data type/rate configuration commandsVadim Yanitskiy1-14/+48
Change-Id: I7393fce82613a57275033f5c47e16bbf708a3bfb Related: OS#4396
2024-01-24mobile: VTY: make soft-UART parameters configurableVadim Yanitskiy1-0/+6
Change-Id: I48bb58aaf1101fbc0e58db3fb1100927e506ede2 Related: OS#4396
2024-01-24mobile: VTY: use 'enum gsm48_bcap_transp' from libosmogsmVadim Yanitskiy1-11/+4
Change-Id: Iebc0692f17a5a5d04e57d74a720db52775937bdd Related: OS#4396
2024-01-24mobile: add a separate logging category for CSDVadim Yanitskiy1-0/+1
Change-Id: If9db0759aeb4324ace9ae258c852787f37897d83 Related: OS#4396
2024-01-20mobile: implement sending CSD data over UNIX socketVadim Yanitskiy1-0/+1
Change-Id: Id054af7b3d9d0a41715f7981deb420f6e09bf30c Related: OS#4396
2024-01-20mobile: integrate V.110 TA & soft-UART from libosmocoreVadim Yanitskiy1-0/+4
Change-Id: I7ac9c0e5010730fa4d8bc7a7a3c7ff85e11731c0 Depends: libosmocore.git I6d2f8e250df31c233a2741163113dc07515409ae Depends: libosmocore.git I5716bd6fd0201ee7a7a29e72f775972cd374082f Depends: libosmocore.git I2ca95963fd5852ddb89bdd35b86b31489127fe84 Related: OS#4396
2024-01-18mobile: rename tch_send_voice_{msg,frame}() functionsVadim Yanitskiy1-2/+2
These functions can also be used for sending data frames (CSD). Change-Id: Ib55b4405847f2efb583f3a379ff4b6929d6d6c5b Related: OS#4396
2024-01-18mobile: init/deinit GAPK I/O based on CC transaction eventsVadim Yanitskiy3-8/+25
Change-Id: I28f87f6a6de673611aa02a24e8985aee23d4498b Related: OS#4396
2024-01-17mobile: store MNCC Bearer Capability in CC transactionVadim Yanitskiy1-0/+1
We will need to know the current Bearer Capability of a CC transaction in the upcoming patches adding CSD support. Change-Id: Ifc3ecf832a552c65444f49711ac836b6cd984715 Related: OS#4396
2024-01-17mobile: add generic signals for CC/SS/SM transactionsVadim Yanitskiy1-0/+7
This allows driving logic in other modules based on transaction related events, such as allocation, deallocation, or a state change. These new signals will be used in the upcoming CSD implementation. Change-Id: Idae5da24cb517878a26cc14b2ba6976e60f0b31b Related: OS#4396
2024-01-16layer23: drop unneeded forward declarationVadim Yanitskiy1-1/+0
Change-Id: I75bd08c1a88ad75d93a519422dfb7922c37a27a3
2023-11-27mobile: Fix PCS ARFCN handling: PCS can only be ARFCN 512..810Andreas Eversberg1-2/+3
While it is correct to use the band indicator from SI1 rest octets, it may only be applied for ARFCN values in the range 512..810. The function gsm_refer_pcs() is used to determine, if the cell (which 'talks' about ARFCNs) refers to them PCS or DCS channels. It returns true, if it refers to PCS, but this only means that ARFCNs in the range 512..810 are PCS channels, not all ARFCNs. The new function gsm_arfcn_refer_pcs() is used to add the PCS flag to an ARFCN, if the given cell refers to PCS and the given ARFCN is in the PCS range 512..810. Change-Id: Id99c8534bf853f4f24f99364790c1ac1df6cc007 Related: OS#6078
2023-11-03mobile: rename voice.[ch] to tch.[ch]Vadim Yanitskiy3-11/+11
Also take a chance to change the 'tch_' prefix for all functions. Change-Id: I05e1ae777add73672db61565c77c68d8ab2b08f0 Related: OS#4396
2023-11-03mobile: cosmetic: rename gsm48_rr_tx_{voice->traffic}()Vadim Yanitskiy1-1/+1
Not only this function can be used to transmit a voice frame, but also a data frame during a CSD call. Change-Id: I920300ae477e3c3d7c413cd1a35f2bc385266960 Related: OS#4396
2023-11-03mobile: add params and VTY commands for data callsVadim Yanitskiy2-0/+34
Change-Id: If52fa70cb202f0736a17fe8eb63d226186637f62 Related: OS#4396
2023-11-03mobile: clarify TCH I/O {handler,format} namingVadim Yanitskiy1-23/+23
Before we add handling of TCH I/O for data calls, let's rename the existing voice related symbols and struct fields to have 'voice' in their names. Change-Id: If6c799d11e225ad00ca5da5ae63dca20568a0ce0 Related: OS#4396
2023-11-02mobile: rename 'audio' node to 'tch-voice' nodeVadim Yanitskiy1-1/+1
Change-Id: I2cab597c5de92ecb343cad7aaaa48035ca5f8365 Related: OS#4396
2023-11-02mobile: add support for Circuit Switched Data callsVadim Yanitskiy3-1/+62
This patch implements the signalling part for mobile originating and mobile terminating CSD calls. The user plane interface is to be implemented in follow-up patches. Change-Id: I1995fa0a7a68d9b980852b664d472d4633777ac6 Related: OS#4396
2023-10-30mobile: move 'struct gsm_call' from <mncc.h> to <mncc_ms.h>Vadim Yanitskiy2-19/+26
The only file using this structure is mnccms.c. Change-Id: Iaa43609849ac3c755d47258d3aca4bfe7a6b3a49 Related: OS#4396
2023-10-30mobile: cosmetic: use '#pragma once' in mncc.hVadim Yanitskiy1-5/+1
Change-Id: I2f350c5b67e57097b71b12ba42c90ce0941b8fea
2023-10-27ASCI: Add option to join voice group/broadcast calls without valid SIMAndreas Eversberg1-0/+1
This option must be enabled in the VTY and is disabled by default. Calls can be joined when service is limited or normal. With that option enabled, calls can be joined even with invalid SIM. Talking is allowed when service is normal. With that option enabled, talking is always allowed. It depends on the network, if it accepts the talker. Change-Id: I6ea851a8cb015ff685b985335968c6184beca816 Related: OS#5364
2023-10-16mobile: mncc_call(): make *number argument constVadim Yanitskiy1-1/+1
Change-Id: I4558ce1313b8e9aadd73474a6514c136aa512de3
2023-10-05Fix indices of ARFCNs for measurement reportAndreas Eversberg1-0/+1
The order of ARFCNs are described in TS 44.018 §10.5.2.20. The function arfcn_from_freq_index() is re-used to get the ARFCNs in correct order for the report. Change-Id: I0674467eb5a38a341cf65f95a25aa5f7232df069
2023-10-04ASCI: Add VTY command to display group call neighbor cellsAndreas Eversberg1-0/+1
Related: OS#5782 Change-Id: Ie84221507bdf247c1563b829d6cf0adb53ce161f
2023-10-04ASCI: Add decoding of SYSTEM INFORMATION TYPE 10 $(ASCI)$Andreas Eversberg1-0/+22
Related: OS#5782 Change-Id: I81c7929f6d951d8eef7d08624f0b72830370c448
2023-10-02ASCI: Add VTY commands to control voice group/broadcast callsAndreas Eversberg1-0/+2
Related: OS#5364 Change-Id: Id32253b4e10b8df48e819d8a92bbcda332dd11e6
2023-10-02ASCI: Add GCC/BCC layer to support voice group/broadcast callsAndreas Eversberg3-2/+64
Related: OS#5364 Change-Id: I22eacd018f18c18ba83dbd3dd874cf029344674d
2023-10-02ASCI: Add protocol type to trans_find_by_callref() functionAndreas Eversberg1-1/+1
This is required, because different protocols may share the same callref, but use different protocols. E.g. a voice group call can share the same callref with a voice broadcast call, but these calls are different transactions. Related: OS#5364 Change-Id: Ifea3a81aae3b4ae897851f867b13fa987c8cbe11
2023-10-02ASCI: Add group receive and transmit mode support to MM layerAndreas Eversberg1-8/+41
Related: OS#5364 Change-Id: I05957182a57423ad947ab200b52f65fde859e110
2023-10-02ASCI: Add group transmit mode support to RR layerAndreas Eversberg2-0/+14
This allows the upper layer to estabish and release connection on the uplink of a voice group call. Related: OS#5364 Change-Id: I9b62eef5d877e5d9dcf349717efd2cce28862c58
2023-09-28ASCI: Add group receive mode support to RR layerAndreas Eversberg1-0/+10
This allows reception of VGCS and VBS calls. A special sub-state is used to differentiate between IDLE mode and group receive mode. Later it can be used to differentiate between dedicated and group transmit mode. Related: OS#5364 Change-Id: Ia7d806b354fb3be5729bff8ac9aa1c7ad7a8b539
2023-09-28ASCI: Add ASCI notification support to RR layerAndreas Eversberg1-0/+5
The notifications are received on NCH, as well as on FACCH. Related: OS#5364 Change-Id: I49df02cb4d99d9aab1ea3ca13beb2ea00ae4c9f4
2023-09-28ASCI: Add interface for group receive/transmit mode support to RR layerAndreas Eversberg1-0/+11
This patch includes new messages and description. The are used to bring RR layer into group receive mode and from there in group transmit mode and back. Related: OS#5364 Change-Id: I1abd56c63d15af1cff8bde7589a571cb5bb5506f
2023-09-28ASCI: Add uplink free/busy event to MM eventsAndreas Eversberg1-0/+2
Related: OS#5364 Change-Id: I3f8d97a0359ea9560d6d6bfd8238ddc6492c56e8
2023-09-28ASCI: Add channel notification event to MM eventsAndreas Eversberg1-2/+13
This is required to notify MM layer about new and ceased group and broadcast calls. Related: OS#5364 Change-Id: Ifee286ba4628356cc19b5dc75f1843287c5d2342
2023-09-28ASCI: Increase channel request history to 5 entriesAndreas Eversberg1-1/+1
3 entries are enough for random access on CCCH. 5 are required for uplink request on VGCS channel. The history is used to remember when the random access bursts were send. The RR layer can check if the IMMEDIATE ASSIGNMENT or VGCS UPLINK GRANT message has matching frame number and random value of up to 5 random access bursts previously sent. Related: OS#5364 Change-Id: I62f18685bf05663f3ee6e94f6884ffb9a6b07ea4
2023-09-28Refactoring encoding of mobile identity at mobile applicationAndreas Eversberg1-0/+2
Deprecated functions gsm48_generate_mid_from_*() are replaced by osmo_mobile_identity_encode_msgb(). Clean up code. Change-Id: I9ff429bd50d718530fdad64a276053a35c8928f2
2023-09-28ASCI: Add support flags to mobile (and VTY) for VGCS/VBSAndreas Eversberg1-0/+4
These support flags can be enabled or disabled and are sent in the class mark IE. Also they allow or disallow making VGCS/VBS calls. Related: OS#5364 Change-Id: Ia23eb190e533660cce4ba4c856a83b5f3d534202
2023-09-28ASCI: Add UIC support to random access burstAndreas Eversberg1-1/+1
A different identity code can be used on uplink access bursts on voice group channel. This is optional for the network, but mandatory for the MS side. If the network does not define a UIC, the BSIC is used instead. BSIC is used for RACH channel and handover. Related: OS#5364 Change-Id: I4039734676949aefa5be4b5298764b8ba7e1b8ed
2023-09-27ASCI: Add two logging categories for group and broadcast call controlAndreas Eversberg1-0/+2
Related: OS#5364 Change-Id: I77f634c7098137a5412ea56ddc0e794e629d1982
2023-09-27ASCI: Add a flag to turn transmitter off or onAndreas Eversberg3-7/+8
This flag can be used to turn transmitter off for "group receive mode" or for handover procedure. The flag is stored in the channel description of the mobile application. It is sent to layer 1 when switching to dedicated channel or when changing TCH mode. At the layer 1 the transmitter is turned off while the receiver is still active. This is done by: * scheduling a TX dummy task for TCH bursts * scheduling no TX task for SACCH bursts * not enabling the transmit window Related: OS#5364 Change-Id: I20133523adc3b204cd2181bfe664fe66020a10e3
2023-09-27ASCI: MM connections are defined by 'ref' and 'protocol' tupleAndreas Eversberg1-1/+1
VGCS and VBS calls may share the same (call) ref or share with other protocols. Therefore the MM connection is defined by the reference and the prococol discriminator. Related: OS#5364 Change-Id: Ic280cd8c666660077bb2c2ef641f4cddd3b36eee
2023-09-27ASCI: Add GCC/BCC (call control) to mobility managementAndreas Eversberg1-0/+26
GCC is the call control for voice group calls, BCC is the call control for voice broadcast calls. This patch includes the new message primitives between MM layer and the GCC/BCC layers. Related: OS#5364 Change-Id: If6f3cea4b2ca839559596a6ee5a3d169c6d85dbe
2023-09-23modem: grr: implement RACH.req retransmissionVadim Yanitskiy1-3/+3
Sometimes sending one Access Burst is not enough, so we need to repeat sending it a few more more times changing the 3 LSBs randomly. This is what we already do in the mobile app, but not in the modem app. * Rename GRR_EV_RACH_{REQ,CNF} to GRR_EV_CHAN_ACCESS_{REQ,CNF}. * Rename VTY command 'grr tx-chan-req' to 'grr start-chan-access'. * Add an intermediate state GRR_ST_PACKET_ACCESS. ** The GRR_EV_CHAN_ACCESS_REQ transitions to this state. ** One RACH.req gets transmitted when entering this state. ** The GRR_EV_CHAN_ACCESS_CNF confirms transmission of a RACH.req. ** Upon the timeout (300 ms) expiry, a loop state transition happens. ** After 3 loop-transitions, transition to GRR_ST_PACKET_NOT_READY. Change-Id: Iab6d9147f6e0aeb99239affacf318a3897fd6ffe Related: libosmo-gprs.git If0de3ed86b1e2897d70183f3b0f4fbfd7d2bda80 Related: OS#5500, OS#6131
2023-09-04l1gprs/l1ctl: Decouple RTS.ind from DL_BLOCK.indPau Espin Pedrol2-0/+2
Before this patch, the RTS:ind was crafted up in the stack when receiving the DL_BLOCK.ind. This created some problems since the internal low level state has to be updated in between signalling DL_BLOCK.ind and RTS.ind, as there's a fn-advnace of one block between those 2 signals (hence the timeslot allocation has to be applied at the time when the fn-advance is applied). This is actually not fixing the whole issue, since there's several timeslots and hence the following events will have the internal timeslot updated during the event in the middle, hence potentially causing problems in the remaining TS: DL_BLOCK.ind(FN=N, TS=1), RTS.ind(FN=N+4, TS=1), DL_BLOCK.ind(FN=N, TS=2) In any case, this decoupling already improves the situation and is step needed anyway towards fully fixing the problem (by, for instance, maintaining a timeslot state duplicated both for DL and Ul directions, since they drive based on differnet FN time (1 PDCH block). Change-Id: I1494e0aac7555f6e01b4b435b77140afc42c098e
2023-08-10l1ctl_proto: add 'start_fn' field to UL/DL TBF CFG.req messagesVadim Yanitskiy1-2/+3
Change-Id: Ibb6a05165fe1c81268fb0e3674adae4065e78171 Related: OS#5500
2023-07-27layer23: modem: Validate IP version of UL data packets from tun match PDP ↵Pau Espin Pedrol1-0/+3
context setup Change-Id: I3fe56fcbdbb6be3366829a14a433b735f7f9d43c
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 15:20:57 +0000