Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 1 | #include <string.h> |
| 2 | #include <errno.h> |
| 3 | |
| 4 | #include <netinet/in.h> |
| 5 | |
| 6 | #include <openbsc/gsm_data.h> |
| 7 | #include <openbsc/e1_input.h> |
| 8 | #include <openbsc/trau_frame.h> |
| 9 | #include <openbsc/trau_mux.h> |
| 10 | #include <openbsc/misdn.h> |
Harald Welte | a837977 | 2009-06-20 22:36:41 +0200 | [diff] [blame] | 11 | #include <openbsc/talloc.h> |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 12 | |
| 13 | #define SAPI_L2ML 0 |
| 14 | #define SAPI_OML 62 |
| 15 | #define SAPI_RSL 0 /* 63 ? */ |
| 16 | |
| 17 | #define TEI_L2ML 127 |
| 18 | #define TEI_OML 25 |
| 19 | #define TEI_RSL 1 |
| 20 | |
| 21 | /* do some compiled-in configuration for our BTS/E1 setup */ |
| 22 | int e1_config(struct gsm_bts *bts, int cardnr, int release_l2) |
| 23 | { |
| 24 | struct e1inp_line *line; |
| 25 | struct e1inp_ts *sign_ts; |
| 26 | struct e1inp_sign_link *oml_link, *rsl_link; |
Harald Welte | 25b70c5 | 2009-07-29 16:42:16 +0200 | [diff] [blame] | 27 | struct gsm_bts_trx *trx = bts->c0; |
Harald Welte | d1b1cda | 2009-08-04 14:13:35 +0200 | [diff] [blame] | 28 | int base_ts; |
| 29 | |
| 30 | switch (bts->nr) { |
| 31 | case 0: |
| 32 | /* First BTS uses E1 TS 01,02,03,04,05 */ |
Harald Welte | 2d73d4e | 2009-08-06 17:38:10 +0200 | [diff] [blame] | 33 | base_ts = HARDCODED_BTS0_TS - 1; |
Harald Welte | d1b1cda | 2009-08-04 14:13:35 +0200 | [diff] [blame] | 34 | break; |
| 35 | case 1: |
Harald Welte | 2d73d4e | 2009-08-06 17:38:10 +0200 | [diff] [blame] | 36 | /* Second BTS uses E1 TS 06,07,08,09,10 */ |
| 37 | base_ts = HARDCODED_BTS1_TS - 1; |
Harald Welte | d1b1cda | 2009-08-04 14:13:35 +0200 | [diff] [blame] | 38 | break; |
| 39 | case 2: |
Harald Welte | 2d73d4e | 2009-08-06 17:38:10 +0200 | [diff] [blame] | 40 | /* Third BTS uses E1 TS 11,12,13,14,15 */ |
| 41 | base_ts = HARDCODED_BTS2_TS - 1; |
Harald Welte | d1b1cda | 2009-08-04 14:13:35 +0200 | [diff] [blame] | 42 | default: |
| 43 | return -EINVAL; |
| 44 | } |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 45 | |
Harald Welte | 857e00d | 2009-06-26 20:25:23 +0200 | [diff] [blame] | 46 | line = talloc_zero(tall_bsc_ctx, struct e1inp_line); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 47 | if (!line) |
| 48 | return -ENOMEM; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 49 | |
| 50 | /* create E1 timeslots for signalling and TRAU frames */ |
Harald Welte | d1b1cda | 2009-08-04 14:13:35 +0200 | [diff] [blame] | 51 | e1inp_ts_config(&line->ts[base_ts+1-1], line, E1INP_TS_TYPE_SIGN); |
| 52 | e1inp_ts_config(&line->ts[base_ts+2-1], line, E1INP_TS_TYPE_TRAU); |
| 53 | e1inp_ts_config(&line->ts[base_ts+3-1], line, E1INP_TS_TYPE_TRAU); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 54 | |
| 55 | /* create signalling links for TS1 */ |
Harald Welte | d1b1cda | 2009-08-04 14:13:35 +0200 | [diff] [blame] | 56 | sign_ts = &line->ts[base_ts+1-1]; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 57 | oml_link = e1inp_sign_link_create(sign_ts, E1INP_SIGN_OML, |
Harald Welte | 25b70c5 | 2009-07-29 16:42:16 +0200 | [diff] [blame] | 58 | trx, TEI_OML, SAPI_OML); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 59 | rsl_link = e1inp_sign_link_create(sign_ts, E1INP_SIGN_RSL, |
Harald Welte | 25b70c5 | 2009-07-29 16:42:16 +0200 | [diff] [blame] | 60 | trx, TEI_RSL, SAPI_RSL); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 61 | |
| 62 | /* create back-links from bts/trx */ |
| 63 | bts->oml_link = oml_link; |
Harald Welte | 25b70c5 | 2009-07-29 16:42:16 +0200 | [diff] [blame] | 64 | trx->rsl_link = rsl_link; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 65 | |
| 66 | /* enable subchannel demuxer on TS2 */ |
Harald Welte | d1b1cda | 2009-08-04 14:13:35 +0200 | [diff] [blame] | 67 | subch_demux_activate(&line->ts[base_ts+2-1].trau.demux, 1); |
| 68 | subch_demux_activate(&line->ts[base_ts+2-1].trau.demux, 2); |
| 69 | subch_demux_activate(&line->ts[base_ts+2-1].trau.demux, 3); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 70 | |
| 71 | /* enable subchannel demuxer on TS3 */ |
Harald Welte | d1b1cda | 2009-08-04 14:13:35 +0200 | [diff] [blame] | 72 | subch_demux_activate(&line->ts[base_ts+3-1].trau.demux, 0); |
| 73 | subch_demux_activate(&line->ts[base_ts+3-1].trau.demux, 1); |
| 74 | subch_demux_activate(&line->ts[base_ts+3-1].trau.demux, 2); |
| 75 | subch_demux_activate(&line->ts[base_ts+3-1].trau.demux, 3); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 76 | |
Harald Welte | 25b70c5 | 2009-07-29 16:42:16 +0200 | [diff] [blame] | 77 | trx = gsm_bts_trx_num(bts, 1); |
| 78 | if (trx) { |
| 79 | /* create E1 timeslots for TRAU frames of TRX1 */ |
Harald Welte | d1b1cda | 2009-08-04 14:13:35 +0200 | [diff] [blame] | 80 | e1inp_ts_config(&line->ts[base_ts+4-1], line, E1INP_TS_TYPE_TRAU); |
| 81 | e1inp_ts_config(&line->ts[base_ts+5-1], line, E1INP_TS_TYPE_TRAU); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 82 | |
Harald Welte | 25b70c5 | 2009-07-29 16:42:16 +0200 | [diff] [blame] | 83 | /* create RSL signalling link for TRX1 */ |
Harald Welte | d1b1cda | 2009-08-04 14:13:35 +0200 | [diff] [blame] | 84 | sign_ts = &line->ts[base_ts+1-1]; |
Harald Welte | 25b70c5 | 2009-07-29 16:42:16 +0200 | [diff] [blame] | 85 | rsl_link = e1inp_sign_link_create(sign_ts, E1INP_SIGN_RSL, |
| 86 | trx, TEI_RSL+1, SAPI_RSL); |
| 87 | /* create back-links from trx */ |
| 88 | trx->rsl_link = rsl_link; |
| 89 | |
| 90 | /* enable subchannel demuxer on TS2 */ |
Harald Welte | d1b1cda | 2009-08-04 14:13:35 +0200 | [diff] [blame] | 91 | subch_demux_activate(&line->ts[base_ts+4-1].trau.demux, 0); |
| 92 | subch_demux_activate(&line->ts[base_ts+4-1].trau.demux, 1); |
| 93 | subch_demux_activate(&line->ts[base_ts+4-1].trau.demux, 2); |
| 94 | subch_demux_activate(&line->ts[base_ts+4-1].trau.demux, 3); |
Harald Welte | 25b70c5 | 2009-07-29 16:42:16 +0200 | [diff] [blame] | 95 | |
| 96 | /* enable subchannel demuxer on TS3 */ |
Harald Welte | d1b1cda | 2009-08-04 14:13:35 +0200 | [diff] [blame] | 97 | subch_demux_activate(&line->ts[base_ts+5-1].trau.demux, 0); |
| 98 | subch_demux_activate(&line->ts[base_ts+5-1].trau.demux, 1); |
| 99 | subch_demux_activate(&line->ts[base_ts+5-1].trau.demux, 2); |
| 100 | subch_demux_activate(&line->ts[base_ts+5-1].trau.demux, 3); |
Harald Welte | 25b70c5 | 2009-07-29 16:42:16 +0200 | [diff] [blame] | 101 | } |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 102 | |
| 103 | return mi_setup(cardnr, line, release_l2); |
| 104 | } |
| 105 | |
| 106 | /* configure pseudo E1 line in ip.access style and connect to BTS */ |
| 107 | int ia_config_connect(struct gsm_bts *bts, struct sockaddr_in *sin) |
| 108 | { |
| 109 | struct e1inp_line *line; |
| 110 | struct e1inp_ts *sign_ts, *rsl_ts; |
| 111 | struct e1inp_sign_link *oml_link, *rsl_link; |
| 112 | |
Harald Welte | 857e00d | 2009-06-26 20:25:23 +0200 | [diff] [blame] | 113 | line = talloc_zero(tall_bsc_ctx, struct e1inp_line); |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 114 | if (!line) |
Harald Welte | a837977 | 2009-06-20 22:36:41 +0200 | [diff] [blame] | 115 | return -ENOMEM; |
Harald Welte | 59b0468 | 2009-06-10 05:40:52 +0800 | [diff] [blame] | 116 | |
| 117 | /* create E1 timeslots for signalling and TRAU frames */ |
| 118 | e1inp_ts_config(&line->ts[1-1], line, E1INP_TS_TYPE_SIGN); |
| 119 | e1inp_ts_config(&line->ts[2-1], line, E1INP_TS_TYPE_SIGN); |
| 120 | |
| 121 | /* create signalling links for TS1 */ |
| 122 | sign_ts = &line->ts[1-1]; |
| 123 | rsl_ts = &line->ts[2-1]; |
| 124 | oml_link = e1inp_sign_link_create(sign_ts, E1INP_SIGN_OML, |
| 125 | bts->c0, 0, 0xff); |
| 126 | rsl_link = e1inp_sign_link_create(rsl_ts, E1INP_SIGN_RSL, |
| 127 | bts->c0, 0, 0); |
| 128 | |
| 129 | /* create back-links from bts/trx */ |
| 130 | bts->oml_link = oml_link; |
| 131 | bts->c0->rsl_link = rsl_link; |
| 132 | |
| 133 | /* default port at BTS for incoming connections is 3006 */ |
| 134 | if (sin->sin_port == 0) |
| 135 | sin->sin_port = htons(3006); |
| 136 | |
| 137 | return ipaccess_connect(line, sin); |
| 138 | } |