Commit Graph

29 Commits

Author SHA1 Message Date
Andreas.Eversberg c6e756aab6 layer23: Fixed issues about location update and it's result.
Now location update reject works. The rejected network/cell is stored in
an appropriate list. The lists can be dumped from the VTY.

A fake authentication response is generated until the SIM interface is
available. If the network rejects the test SIM, due to authentication
failure, it is removed and limited service state is entered. This currenlty
works on networks with SDCCH on the TS0 only.
2010-06-13 13:51:30 +00:00
Andreas.Eversberg 786054d117 cell selection: Added temporary hack to sync multiple times until the sync
failure is accepted.
2010-06-13 12:09:30 +00:00
Andreas.Eversberg 247ec7acf3 Radio ressources now has functions for release of radio link.
The "BA range" is used for cell re-selection.

Due to layer 1 issues, the process gets stuck very often or looses
synchronization.

After location update, I can now make a call via VTY on SDCCH:
Call control sends SETUP request after requesting an MM connection.
My phone on the network side rang!! Call control fails and requires
further debugging...
2010-06-12 16:16:54 +00:00
Andreas.Eversberg d8cc251cf1 Fixes and improvements of RR, MM, CC processes. 2010-06-06 18:19:46 +00:00
Andreas.Eversberg 4f03a851f0 Fixed of bugs while testing layer 2. 2010-06-05 19:46:10 +00:00
Andreas.Eversberg 5d10a35819 Fixes on cell selection process. 2010-05-24 23:15:15 +00:00
Andreas.Eversberg 1294f37687 Fixes during testing of location update with.
The location update is now performed after the channel is assigned.
In dedicated mode the network receives the LOCATION UPDATING REQUEST.
The reply (IDENTITY REQUEST and LOCATION UPDATING REJECT) is received.
But subsequent message like the IDENTITY RESPONSE is not transmitted
by lapdm.c.
2010-05-24 14:46:11 +00:00
root 6404e12a90 Moved some spreaded settings of layer23 into settings.h.
The IMEI can now be set or generated randomly.
2010-05-24 18:15:21 +02:00
root 0f1ef214b6 Fixes on cell selection.
I hope that it fixes the crash issues. If a sysinfo was received when no cell is
selected, it was written to a NULL-pointer.

Also after selecting a cell (dedicated mode), it was not good to "continue"
an already stopped search process, if the sync fails.
2010-05-24 05:38:24 +02:00
Andreas.Eversberg 6ca03ff7e6 Fixing cell selection, so it works with the current layer 1 API. 2010-05-22 09:27:33 +00:00
Andreas.Eversberg 0d1f453943 Summary list of scanned cells now contains LAC and cell ID, rather than (uninteresting) access classes. 2010-05-21 15:52:11 +00:00
Harald Welte cb71b972bd Make new L1CTL_FBSB_REQ work reliably
* port 'mobile' application to new l1ctl_tx_fbsb_req()
* make sure we have a proper downlinke header in front of l1ctl_fbsb_resp
* remove duplicate band_arfcn member of struct l1ctl_fbsb_resp
* reset the AFC to its default value when starting new FBSB task
* remove bogus l1s.sb.{synced.count} variables
* allocate msg and send l1ctl_fbsb_resp() only from process context, not FIQ
* properly report SNR and BSIC in fbsb_resp
* introduce arbitrary SNR thresholds for FB0->FB1 and FB1->SB switching
2010-05-20 23:26:42 +02:00
Harald Welte 8978ec571e layer1/l1ctl: Split L1CTL_NEW_CCCH_REQ in FBSB_REQ nad SYNC_REQ
We really want to have those two as distinct operations - and we
want proper state machines in L1 to quickly return if they've
managed to acquire a FB or SB or not.  Otherwise scanning will
take ages...

This code now introduces a new l1ctl_fbsb_req that is sent via
L1CTL to ask for a bitmask of FB0/FB1/SB operations.  The actual
FB0/FB1 detection now no longer runs for 500 TDMA interrupts
but completes as soon as we either know there is no FCCH,
or that our frequency error is smaller than a caller-specified
threshold.

FB0/FB1 are already working, SB is not yet, sorry.
2010-05-19 21:41:24 +02:00
Andreas.Eversberg 21cc7eecc5 Work on VTY interface:
- Load and save of config now works.
- Network search is displayed on VTY and the result can be selected there.
- Manual/auto mode can be selected via VTY and saved.
2010-05-13 12:51:22 +00:00
Andreas.Eversberg bb08bbd1d7 Minor fixes and improvements to L3 and VTY. 2010-05-10 22:06:37 +00:00
Andreas.Eversberg b763a07c47 Added "show ba 1" to view BA lists via VTY interface. 2010-05-09 17:31:49 +00:00
Andreas.Eversberg 3928d757f0 Added vty interface (taken from OpenBSC project).
It is now possible to show informations about:
- mobile
- subscriber
- received cell informations

Later it can be used to do configurations (phone's menu)
and trigger events, like dialing a phone number.
2010-05-09 16:01:49 +00:00
Andreas.Eversberg acd570fff8 Added SI3 rest octets to RR layer. Now a cell can be qualified:
- Low prio
- High prio
- Barred
2010-05-09 09:40:41 +00:00
Andreas.Eversberg f76e2064a4 Added BCCH timeout timer for detecting loss of radio link (layer23). 2010-05-08 14:31:27 +00:00
Andreas.Eversberg 2b5c2337ed Fixes for layer 3 processes:
- CCCH connection state variable
- The complete BAND is now searched prio selecting PLMN
2010-05-07 21:41:54 +00:00
Andreas.Eversberg 2b7d2ed446 - Fixes on MM, RR, cell selection, plmn search processes.
-> Cell selection now requires only one frequency to be scanned, if BA list
   of that PLMN is known.
2010-05-06 08:48:24 +00:00
Andreas.Eversberg 7c5b9ea288 Work on layer 3 processes:
- Fixes on PLMN search and cell selection process.
- Fixes on radio ressource.
- ^C will cause IMSI detach when pressed the first time.
  Pressing ^C again will cause termination of process at any time.
2010-05-05 08:40:10 +00:00
Andreas.Eversberg 7f009e41f9 Work on layer 3 processes:
- Fixed reference to system informations. (did crash when re-selecting).
- Fix in cell selection state machine. (any re-selection).
- MCC, MNC, LAC change of cell now triggers re-selection.
- Fixed some paging issues. Empty pagings are not displayed anymore. Also paging is now possible when 'camping on any cell'.
2010-05-04 09:48:51 +00:00
Andreas.Eversberg fe1dc19c6e More fixes on layer3.
The current code will scan frequencies, select a cell and camps on it.
No SIM is inserted. Paging requests and Immediate assginments can be seen.

When inserting a SIM card (uncomment it in app_mobile.c), location update
is triggered after selecting a cell. The RACH request is sent, an
Immediate assignment is received, the dedicated mode is requested.
Nothing happens then, because no confirm / abort of layer 2 is received.
2010-05-02 17:40:52 +00:00
Andreas.Eversberg 14974d3dba Many fixes in layer 3:
- Sysinfo storage
- Cell/Network selection process
- Channel request / Paging
2010-05-02 17:13:47 +00:00
Andreas.Eversberg 8e5f33b4d3 Fixed many issues in MM IDLE mode process. 2010-05-01 18:21:03 +00:00
Andreas Eversberg 516917e836 Fixes and improvements of layer23. 2010-04-29 20:46:11 +02:00
Andreas Eversberg 9ef7ac8b11 Added some debugging. / Minor condition fix. 2010-04-26 11:21:18 +02:00
Andreas Eversberg f1278ad9da Added new application "mobile" to layer23.
This is the current status of the layer 3 protocols. Everything compiles,
radio ressource layer is partly complete. Everything is untested, so don't
expect that it runs and does something usefull. The next step for me is
running and debugging it.

Here is the list of files that are added / modified:

	new file:   ../include/osmocom/gsm322.h
	new file:   ../include/osmocom/gsm48_cc.h
	new file:   ../include/osmocom/gsm48_mm.h
	new file:   ../include/osmocom/gsm48_rr.h
	modified:   ../include/osmocom/l23_app.h
	modified:   ../include/osmocom/logging.h
	new file:   ../include/osmocom/mncc.h
	modified:   ../include/osmocom/osmocom_data.h
	new file:   ../include/osmocom/subscriber.h
	new file:   ../include/osmocom/support.h
	new file:   ../include/osmocom/sysinfo.h
	new file:   ../include/osmocom/transaction.h
	modified:   Makefile.am
	new file:   app_mobile.c
	new file:   gsm322.c
	new file:   gsm48_cc.c
	new file:   gsm48_mm.c
	new file:   gsm48_rr.c
	modified:   main.c
	new file:   mnccms.c
	new file:   subscriber.c
	new file:   support.c
	new file:   sysinfo.c
	new file:   transaction.c
2010-04-25 18:28:24 +02:00