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2014-05-22common: Remove unused gsm_time parameter from lchan_sacch_getHolger Hans Peter Freyther1-1/+1
2014-05-15abis: Separate initialization from connect for AbisHolger Hans Peter Freyther1-0/+1
Initialize the libosmo-abis VTY nodes more early so we can parse the config file that was created by "write". Introduce abis_init to initialize the libosmo-abis and modify abis_open to re-use an existing line. Update the comments. This has only been tried with the sysmobts-remote on x86. A TCP connection is opened toward the configured BSC. Fixes: SYS#285
2014-03-26oml: Indicate the kind of object passed as the void*Holger Hans Peter Freyther1-1/+1
These routines do not pass the gsm_abis_mo and parsing the FOM header of the msg does not seem to be a good idea either. Pass in the OML object so that the model code can determine what the void pointer is.
2014-03-10handover: Add generic handling for handoverAndreas Eversberg2-0/+3
The BTS layer needs to inform the handover code when an access burst has been received. In turn the handover layer will ask the bts to modify the channel, it will schedule the physical information inform the BSC with the HANDOVER DETECTION and waits for the BTS layer to inform it about the first received frame to stop a timer.
2014-03-10handover: Set basic values for handover, remember the activation reasonAndreas Eversberg2-1/+12
Introduce the handover.h/handover.c and initialize handover parameters in OML and remember the activation through RSL.
2014-03-10handover: Implement generating HANDOVER DETECTION in rsl_tx_hando_detAndreas Eversberg1-0/+1
2014-03-10handover: Introduce debug area for handover related itemsAndreas Eversberg1-0/+1
2014-03-10agch: Manage AGCH queue lengthJacob Erlbeck1-0/+9
Currently, the AGCH queue length is not limited. This can lead to large delays and network malfunction if there are many IMM.ASS.REJ messages. This patch adds two features: - Don't accept msgs from the RSL layer when the queue is way too full (safety measure, mainly if bts_ccch_copy_msg() is not being called by the L1 layer, currently hard coded to 1000 messages) - Selectively drop IMM.ASS.REJ from the queue output depending on the queue length Ticket: SYS#224 Sponsored-by: On-Waves ehf
2014-03-10agch/pch: Use PCH for AGCH msgsJacob Erlbeck1-1/+2
This patch extends paging_gen_msg() by adding an output parameter is_empty that is true, if only a paging message with dummy entries has been placed into buffer. This feature is then used by bts_ccch_copy_msg() to insert an AGCH message if is_empty is true. Ticket: SYS#224 Sponsored-by: On-Waves ehf
2014-03-10agch: Add simple countersJacob Erlbeck1-0/+10
Counters are added for the following events (use VTY show to query): - Dropped IMMEDIATE ASSIGN REJECT messages - Merged IMMEDIATE ASSIGN REJECT messages - Rejected AGCH messages - Use of PCH (non-reserved) for AGCH messages - Use of AGCH (reserved) for AGCH messages Sponsored-by: On-Waves ehf
2014-03-10agch: Recalculate length limit of AGCH queueJacob Erlbeck2-0/+3
This patch adds a function bts_update_agch_max_queue_length() to compute a limit of the AGCH queue. This is based on the idea, that the AGCH queue has a limited drain rate and that CHANNEL REQUESTs must be answered within a certain time frame, given by the minimum value of T3126 (see GSM 04.08). When the AGCH queue reaches that limit, the last message would be delivered in time if there were no other delays involved (which is not the case). The calculation is based on the ratio of the number RACH slots and CCCH blocks per time: Lmax = (T + 2*S) / R_RACH * R_CCCH where T3126_min = (T + 2*S) / R_RACH R_RACH is the RACH slot rate (e.g. RACHs per multiframe) R_CCCH is the CCCH block rate (same time base like R_RACH) The value depends control_channel_desc.ccch_conf and rach_control.tx_integer (both from SYSINFO_TYPE_3) and should therefore by called at least each time after one of these is changed. For this reason, a signal callback is registered under SS_GLOBAL/S_NEW_SYSINFO which invokes bts_update_agch_max_queue_length(). Sponsored-by: On-Waves ehf Based-On: "bts: Calculate length of agch queue" by Ivan Kluchnikov <kluchnikovi@gmail.com>
2014-02-22agch/pch: Put CCCH message generation into commonJacob Erlbeck1-0/+2
This patch adds a common function bts_ccch_copy_msg() that provides and schedules AGCH and PCH messages. It is basically a frontend to paging_gen_msg() and bts_agch_dequeue() and contains refactored code from l1_if.c. Sponsored-by: On-Waves ehf
2014-02-22agch: Keep track of AGCH queue lengthJacob Erlbeck1-0/+1
This patch adds and updates btsb->agch_queue_length to keep track of the queue length. Sponsored-by: On-Waves ehf
2013-11-27sysmobts: Activate the BCCH silently have have state set to activeHolger Hans Peter Freyther1-0/+1
Use the lchan->rel_act_kind field for the BCCH activatiob by OML. The lchan's should be marked as active but no event should be sent to the BSC. This is mostly like the PCU. We can now remove the secnd argument from lchan_activate.
2013-11-14rsl: Rename abis_rsl_sendmsg to avoid symbol clash with libosmo-abisHolger Hans Peter Freyther1-1/+1
Nicolas ended up with linker issues due abis_rsl_sendmsg being defined twice. Rename our version of the function and update the code. Patched with: @i@ expression E; @@ - abis_rsl_sendmsg(E) + abis_bts_rsl_sendmsg(E)
2013-11-05sysmobts: Use status flags instead of direct LED accessJacob Erlbeck1-0/+8
Currently the LEDs are being accessed directly from within the l1_if.c file. So the handling of rf mute and activate/deactivate both access LED_RF_ACTIVE directly. This may lead to an inconsistent LED status. This patch replaces these calls to sysmobts_led_set() by an abstract equivalent bts_update_status(), that uses a set of independant status ids. The associated values can than be combined into a visible LED status. Currently LED_RF_ACTIVE is on iff BTS_STATUS_RF_ACTIVE is set and BTS_STATUS_RF_MUTE is not set. Sponsored-by: On-Waves ehf
2013-11-05sysmobts: Do a RF mute when Radio Carrier is lockedJacob Erlbeck1-0/+1
Currently a Change Administrative State Request is just applied unconditionally to the object's state object and then acknowledged. This patch implements the special handling of setting the Radio Carriers state to LOCK or UNLOCK. This is done by passing the appropriate mute command to the L1 layer. Always all radio channels are affected, it is not possible to lock single radio channels. On success, an ACK is sent back to the bsc with the new state (based on the state passed in the callback by the L1 layer). If something went wrong or the firmware doesn't support RF mute, a NACK (REQ_NOT_GRANTED) is sent instead. Note that a NACK for such a request hasn't been sent by the BTS to the BSC yet, so (albeit it's spec conformant to do so) the BSC must be prepared to handle this correctly. Ticket: OW#976 Sponsored-by: On-Waves ehf
2013-11-05sysmobts: Add L1 support for the new RF mute requestJacob Erlbeck1-0/+4
This adds a new function l1if_mute_rf(femtol1_hdl, ch_mute[8]) to set the mute state for each radio channel. On completion and iff l1if_mute_rf() returned 0 the callback oml_mo_rf_lock_chg(mo, ch_mute_state[8], success) is invoked when the response from the superfemto DSP is received. Ticket: OW#976 Sponsored-by: On-Waves ehf
2013-10-25rsl/pcu: Do not send a CHAN ACT to the BSC on PCU usageHolger Hans Peter Freyther1-0/+9
The PCU is forcing the activation of a PDCH. Currently the BSC will receive a channel act ack for a channel that was not activated at all. Use the "release_reason" flag of the lchan to see if we have requested a normal activation or a silent one. It feels a bit odd to do it in the TX function but it is the most easy solution right now. I have added logging so it will not be totally silent.
2013-10-06abis: delay l1if_reset() until OML link is establishedHarald Welte1-0/+2
2013-10-06abis: Use OML remote (BSC) address if RSL CONNECT contains no IPHarald Welte1-0/+2
This introduces a new get_signlink_remote_ip() function whcih we also use in the RSL code to determine the RTP remote address if the CRCX/MDCX contains no remote IP address IE.
2013-10-06migrate away from our own abis.c code to libosmoabisHarald Welte1-18/+2
libosmoabis has a BTS-side implementation of the IPA protocol for years, and osmo-bts should have used that all the time. Unfortunately it had its own local hack, this patch is migrating to the libosmocore implementation.
2013-06-30make oml_mo_state_init() a void functionHarald Welte1-1/+1
... so we don't get warnings about not returning anything
2013-06-30Don't send OML STATE CHANGE before OML is connectedHarald Welte1-0/+3
Instead of calling oml_mo_state_chg() [which transmits OML STATE CHG] during bts_init(), we use a new oml_mo_state_init() function which simply sets the state.
2013-06-24sysmobts: Introduce an auto-band config to ease DCS/DCS, PCS/PCS changesHolger Hans Peter Freyther1-0/+3
During development one switches from GSM900 to GSM1800 and GSM850 to GSM1900. This commit attempts to make this switch more easy. GSM1800 and GSM1900 have overlapping ARFCNs. This means that the mapping from bands to arfcn is not injective. Because of that I removed the code to deduce the band from the ARFCN. This was done in commit 8c3d807b3fc785ffb18aeb97355150c92221e8a0. The auto-band option allows to move between GSM900/GSM1800 and GSM850/GSM1900. Add a simple testcase with these auto-band configurations.
2013-05-04measurement: Mark the internal functions as internalHolger Hans Peter Freyther1-2/+0
In terms of assembly code this only removes the ".global FN" from the code. GCC does not attempt to inline it right now.
2013-03-17Get RSSI from received uplink data and send to PCUAndreas Eversberg2-2/+4
This bumps the PCU API version and thus requires a new version of the code on the sysmoBTS side!
2013-03-11Added radio link timeout procedure according to TS 05.08 Chapter 5.2Andreas Eversberg2-0/+2
Chapter 5.2 applies to MS procedure, but 5.3 (BSS procedure) defines no exact criterion, so I decided to use the procedure equivalent to MS. The criterion is based on a counter S, which is initialized to a preset RADIO_LINK_TIMEOUT, which can be configured via VTY. Whenever a received SACCH block is bad, S is counted down by one. If SACCH block is successfully decoded, S is counted up by two, but never above initial RADIO_LINK_TIMEOUT value. If S reaches 0, an RSL Connection Failure Indication with cause RF Radio Link Failure is sent to BSC, which then aborts channel. Use link timeout value from BSC via OML attribute. How to test: - Set "debug" for "meas" logging. - Start silent call to an attached mobile. - Remove battery from mobile or shield mobile. - Watch S count down.
2013-02-27sysmobts: Improve the shutdown of the DSP on exitHolger Hans Peter Freyther1-0/+1
Issue the RfDeactivate.REQ before sending the MphClose.REQ. Ideally we would issue MphClose.REQ after the RfDeactivate.CNF but this is not possible right now. The current approach makes the following warning of the DSP go away on shutdown. This was tested with my E71 and an active silent-call using a SDCCH. DSP Warning: [ERROR] : DeviceMng_ValidateL1Handle() => Invalid layer 1 handle
2013-02-04Deprecate the "rtp bind-ip" configuration directiveHarald Welte1-1/+0
Instead of explicitly having to specify the local IP address for RTP sockets in the BTS, we just use "0.0.0.0" instead, which gets translated to INADDR_ANY. We still accept the configuration directive in old config files, but when we write, the line will no longer be re-written to the file. TODO: IMHO, the IPA RSL CRCX/MDCX actually permit the BSC to specify the IP address on the BTS side, and we probably simply ignore this at this point.
2013-01-13paging: De-duplicate paging lifetime and max queue length variablesDaniel Willmann2-2/+8
These attributes are saved in paging_state, we don't need to save them a second time in struct gsm_bts_role_bts. Add get and set methods for these attributes and use them consitently in the VTY code.
2012-12-26ciphering: Handle ciphering support for A5/3 correctlyHolger Hans Peter Freyther1-1/+7
This was found and debugged by Sylvain. The BTS will always support A5/0 so we do not keep track of that, the first bit of the flags is used for A5/1, second for A5/2... but for RSL there is an offset to go from RSL to A5(x). Add a testcase and change the code.
2012-12-22misc: Package our version of the gsm_data.h to make the code compilableHolger Hans Peter Freyther1-0/+2
The sharing with OpenBSC is not complete yet. We will need to include our version of gsm_data.h instead of the normal OpenBSC version.
2012-12-22misc: Fix the make distcheck of the osmo-bts codeHolger Hans Peter Freyther1-1/+1
* Comment out the osmo-bts-bb/Makefile as we have removed it from the SUBDIRS and are not packaging the code right now * Add missing include files for the build
2012-12-20openbsc: Prepare to allow to have the OpenBSC directory somewhere elseHolger Hans Peter Freyther1-1/+1
Right now osmo-bts requires access to one OpenBSC header file and this requires that openbsc and osmo-bts git are in the same directory. Begin with making the location of the OpenBSC sourcecode configurable. This approach will allow to build osmo-bts on our Jenkins installation but now has the risk of more code including the openbsc/*.h header files.
2012-12-20misc: Change the method to return void instead of int and garbageHolger Hans Peter Freyther1-1/+1
The method was not returning anything and the callers did not use the result. Change it to void for now.
2012-12-20misc: Include pcu_if.h for pcu_tx_pag_req in rsl.c and make it constHolger Hans Peter Freyther1-1/+1
The rsl.c code was calling the paging request with a const pointer, change the signature to make the code const.
2012-12-20misc: Forward declare the load_timer_start to address compiler warningHolger Hans Peter Freyther1-0/+2
2012-11-24Add VTY configuration of paging queue size and lifetime of paging recordsHarald Welte2-0/+7
This may be adding bells and whistles that nobody wants to touch, but at least for current analysis/optimiziation they are useful to have. Later on they should probably be removed again and/or obsoleted by OML messages for configuration of paging behaviour by the BSC.
2012-09-29PCU: Add PCH confirm, raise PCU interface version to 4Andreas Eversberg2-1/+4
The confirm is required, so PCU knows when an IMMEDIATE ASSIGN message has has been sent on PCH. The PCU will start packet flow after that confirm.
2012-07-25vty: Remove TS_NODE and LCHAN_NODE as they are not used.Holger Hans Peter Freyther1-2/+0
2012-07-21Send RR paging requests to PCU, in order to page on PACCHAndreas Eversberg1-0/+1
2012-07-21Enable direct access to PDTCH queue of DSP by PCUAndreas Eversberg1-1/+10
Use "-P -M" to enable PCU and direct access.
2012-07-16logging: Fixed order of logging categories in enum listAndreas Eversberg1-1/+1
The enum list must have the same order as the logging description structure. Otherwiese libosmocore will crash when writing loglevels at VTY.
2012-07-16PCU: Add verion number of PCU interface to PCU INFO IND messageAndreas Eversberg1-0/+3
The client (PCU) can check if it is compiled with a different version.
2012-07-08PCU: Add PCU socket interface to BTS.Andreas Eversberg3-1/+20
A special command line option "-P" is used to enable socket interface and signal available GPRS MO object to BSC.
2012-07-08PCU: Add PCU socket interface prototype header fileAndreas Eversberg1-0/+138
2012-07-08debug: Add new debugging class for PCU interface (DPCU)Andreas Eversberg1-0/+1
2012-07-08signal: Add signals for setting/change of GPRS MO attributesAndreas Eversberg1-0/+4
2012-07-08paging: Alow to store CCCH messages in paging recordsAndreas Eversberg1-0/+4
This is required for PCU to send IMMEDIATE ASSIGNMENT messages on PCH. A message in a paging record is sent only once.
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