Libosmo-abis » History » Version 4
fixeria, 09/25/2018 06:50 PM
1 | 1 | laforge | h1. libosmo-abis |
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2 | 3 | laforge | |
3 | 4 | fixeria | {{>toc}} |
4 | 3 | laforge | |
5 | 1 | laforge | This is a library containing common/shared code regarding the A-bis interface between BTS and BSC |
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7 | It implements drivers for mISDN and DAHDI based E1 cards, as well as some A-bis/IP dialects |
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8 | |||
9 | The library source code can be found in |
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10 | 3 | laforge | <pre> |
11 | 1 | laforge | git clone git://git.osmocom.org/libosmo-abis.git |
12 | 3 | laforge | </pre> |
13 | 1 | laforge | |
14 | 2 | laforge | |
15 | 3 | laforge | h2. Input Drivers |
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18 | 2 | laforge | There are currently the following input drivers available: |
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21 | 3 | laforge | h3. misdn |
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24 | 1 | laforge | This input driver supports the mISDN code as it is present in mainline linux-2.6 kernels. |
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26 | 2 | laforge | It uses the in-kernel LAPD implementation, and is thus bound to some restrictions. Specifically, |
27 | you can only have one signaling timeslot (D-channel) in every E1 line, which may cause problems |
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28 | 1 | laforge | with multi-BTS or multi-TRX setups (particularly in the case of Nokia A-bis) |
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30 | You have to configure which E1 timeslot is to be used for signaling by module parameters, e.g. |
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31 | 3 | laforge | <pre> |
32 | 2 | laforge | modprobe hfcmulti dslot=1 |
33 | 3 | laforge | </pre> |
34 | 2 | laforge | will configure TS1 as signaling. |
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36 | 1 | laforge | |
37 | 3 | laforge | h3. misdn_lapd |
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40 | 1 | laforge | This input driver supports the mISDN code as it is present in mainline linux-2.6 kernels. |
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42 | However, unlike the "misdn" driver, it runs LAPD in userspace, as part of libosmo-abis. |
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43 | 2 | laforge | |
44 | In order to be able to use it, you will need to make sure the mISDN kernel driver does not |
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45 | configure any timeslot to signaling, e.g. bh |
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46 | 3 | laforge | <pre> |
47 | 1 | laforge | modprobe hfcmulti dslot=-1 |
48 | 3 | laforge | </pre> |
49 | 2 | laforge | (notice the "-" in front of 1 to indicate "no signaling timeslot"). |
50 | 1 | laforge | |
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52 | 3 | laforge | h3. dahdi |
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55 | 2 | laforge | This driver supports the DAHDI (formerly known as zaptel) out-of-tree drivers for e.g. |
56 | the various Digium and Digium compatible E1/T1/J1 cards. |
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59 | 3 | laforge | h3. ipa |
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62 | 2 | laforge | This implements the ip.access A-bis/IP multiplex protocol. |
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64 | 3 | laforge | |
65 | h3. hsl |
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66 | |||
67 | 2 | laforge | |
68 | Experimental driver for support of the [HSL_Femto] |