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* gsm/lapdm: Display SAPI in debug message for easier debugAndreas.Eversberg2011-11-121-2/+2
| | | | | Written-by: Andreas Eversberg <jolly@eversberg.eu> Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
* gsm/lapdm: Fix UI frames from BTS->MS have length (B4 format)Andreas.Eversberg2011-11-121-7/+11
| | | | | | | | | | This is part of a set of commit to fix LAPDm to handle datalink connection on ACCH (SAPI 3) This is required to transfer SMS on SACCH of TCH/f or SDCCH/8 (4). Written-by: Andreas Eversberg <jolly@eversberg.eu> Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
* gsm/lapdm: Fix TA and power level handling in the ACCH headerAndreas.Eversberg2011-11-121-6/+14
| | | | | | | | | | | | | Timing advance and power level indicated by MS (measurement reports) and BTS (SI 5/6) are now stored for use at ACCH data link connection. This is part of a set of commit to fix LAPDm to handle datalink connection on ACCH (SAPI 3) This is required to transfer SMS on SACCH of TCH/f or SDCCH/8 (4). Written-by: Andreas Eversberg <jolly@eversberg.eu> Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
* gsm/lapdm: Set N201 depending on the frame typeAndreas.Eversberg2011-11-121-5/+5
| | | | | | | | | | This is part of a set of commit to fix LAPDm to handle datalink connection on ACCH (SAPI 3) This is required to transfer SMS on SACCH of TCH/f or SDCCH/8 (4). Written-by: Andreas Eversberg <jolly@eversberg.eu> Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
* gsm/lapdm: Make T200 timer depends on the link type (SACCH is slower)Andreas.Eversberg2011-11-121-5/+6
| | | | | | | | | | This is part of a set of commit to fix LAPDm to handle datalink connection on ACCH (SAPI 3) This is required to transfer SMS on SACCH of TCH/f or SDCCH/8 (4). Written-by: Andreas Eversberg <jolly@eversberg.eu> Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
* gsm/lapdm: Add missing msgb_free in rslms_rx_rll error casesAndreas.Eversberg2011-11-121-0/+2
| | | | | Written-by: Andreas Eversberg <jolly@eversberg.eu> Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
* Added defines to use primitive/operation tuples in switch/case statementsAndreas Eversberg2011-10-101-58/+20
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* Split of LAPDm into a core part and a GSM specific partroot2011-10-101-1620/+327
| | | | | | | | | | | | | | Instead of mixing together the GSM layer 1 interface and RSL interface with the implementation of LAPD, the core function of LAPD is now extracted from LAPDm. The core implementation is now in lapd_core.c and lapd_core.h respectively. The lapd_core.c implements exactly one datalink instance for one SAP. The surrounding implementation "lapdm.c" codes/decodes the layer 2 headers and handles multiplexing and datalink instances, as well as translates primitives from/to RSL layer. lapd_core.c can now be used for other LAPD implementations. (ISDN/ABIS)
* LAPDm: Fix encoding of RLL ERROR IEHarald Welte2011-09-031-1/+0
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* doxygen: Add documentation for LAPDm codeHarald Welte2011-08-171-4/+38
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* lapdm: fix memory leak due to unreachable codeHarald Welte2011-07-161-1/+0
| | | | detected by Smatch
* lapdm: make sure we flush all queues whenever entering IDLE stateHarald Welte2011-06-291-0/+11
| | | | | this fixes a memory leak where the final UA would always remain in memory after a LAPDm entity has been disconnected.
* LAPDm: Uplink SACCH frames use format B, not format B4Harald Welte2011-06-291-5/+12
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* LAPDm: When Rx DATA from L1, L1 does not know the SAPIHarald Welte2011-06-271-13/+14
| | | | We have to determine the SAPI ourselves inside the LAPDm header.
* add LAPDm code from osmocom-bb into libosmocoreHarald Welte2011-06-271-0/+2510
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