Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 1 | #include <stdio.h> |
Pablo Neira Ayuso | 54b4979 | 2011-06-07 12:15:26 +0200 | [diff] [blame^] | 2 | #include <talloc.h> |
| 3 | #include <osmocom/abis/abis.h> |
Pablo Neira Ayuso | 177094b | 2011-06-07 12:21:51 +0200 | [diff] [blame] | 4 | #include <osmocom/abis/e1_input.h> |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 5 | |
Pablo Neira Ayuso | 54b4979 | 2011-06-07 12:15:26 +0200 | [diff] [blame^] | 6 | static void *tall_test; |
| 7 | |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 8 | static int rx_cb(struct msgb *msg, struct e1inp_ts *ts) |
| 9 | { |
| 10 | printf("received data\n"); |
| 11 | |
| 12 | /* For ISDN: from the timeslot type, we can get if it's: |
| 13 | * - E1INP_TS_TYPE_SIGN: in this case, check if we have a signal |
| 14 | * link in this timeslot, then, check if it's OML or RSL and pass |
| 15 | * it to the upper layer. |
| 16 | * - E1INP_TS_TYPE_TRAU. |
| 17 | * |
| 18 | * For INET: we have to check if this is a control message, if it's |
| 19 | * a response to previous request id, we enable the signal links for |
| 20 | * OML and RSL. Otherwise, look up for the existing signal link and |
| 21 | * pass it to the upper layer. We don't receive TRAU frames, we use |
| 22 | * RTP. |
| 23 | */ |
| 24 | return 0; |
| 25 | } |
| 26 | |
| 27 | static int rx_err_cb(int error) |
| 28 | { |
| 29 | printf("error, malformed message\n"); |
| 30 | return 0; |
| 31 | } |
| 32 | |
| 33 | int main(void) |
| 34 | { |
| 35 | struct e1inp_line *line; |
| 36 | struct e1inp_ts *sign_ts; |
| 37 | |
Pablo Neira Ayuso | 54b4979 | 2011-06-07 12:15:26 +0200 | [diff] [blame^] | 38 | tall_test = talloc_named_const(NULL, 1, "e1inp_test"); |
| 39 | libosmo_abis_init(tall_test); |
Pablo Neira Ayuso | 0ba77d5 | 2011-06-05 18:32:44 +0200 | [diff] [blame] | 40 | |
| 41 | #define LINENR 0 |
| 42 | |
| 43 | line = e1inp_line_create(LINENR, "ipa", rx_cb, rx_err_cb); |
| 44 | if (line == NULL) { |
| 45 | fprintf(stderr, "problem creating E1 line\n"); |
| 46 | exit(EXIT_FAILURE); |
| 47 | } |
| 48 | sign_ts = &line->ts[0]; |
| 49 | if (e1inp_ts_config_sign(sign_ts, line) < 0) { |
| 50 | fprintf(stderr, "problem setting timeslot in E1 line\n"); |
| 51 | exit(EXIT_FAILURE); |
| 52 | } |
| 53 | |
| 54 | /* |
| 55 | * Depending if this is a real or virtual E1 lines: |
| 56 | * - real (ISDN): create signal link for OML and RSL before line up. |
| 57 | * - vitual (INET): we create it once we have seen response to REQ_ID. |
| 58 | * |
| 59 | * The signal link is created via e1inp_sign_link_create(...) |
| 60 | * |
| 61 | * See e1_reconfig_trx and e1_reconfig_bts in libbsc/e1_config.c, |
| 62 | * it explains how this is done with ISDN. |
| 63 | */ |
| 64 | |
| 65 | if (e1inp_line_update(line, E1INP_LINE_R_BSC) < 0) { |
| 66 | fprintf(stderr, "problem enabling E1 line\n"); |
| 67 | exit(EXIT_FAILURE); |
| 68 | } |
| 69 | |
| 70 | while (1) { |
| 71 | osmo_select_main(0); |
| 72 | } |
| 73 | return 0; |
| 74 | } |