diff options
Diffstat (limited to 'openbsc/src/libbsc/bts_hsl_femtocell.c')
-rw-r--r-- | openbsc/src/libbsc/bts_hsl_femtocell.c | 155 |
1 files changed, 148 insertions, 7 deletions
diff --git a/openbsc/src/libbsc/bts_hsl_femtocell.c b/openbsc/src/libbsc/bts_hsl_femtocell.c index 8463202a3..ebab34aeb 100644 --- a/openbsc/src/libbsc/bts_hsl_femtocell.c +++ b/openbsc/src/libbsc/bts_hsl_femtocell.c @@ -28,13 +28,18 @@ #include <openbsc/abis_nm.h> #include <openbsc/abis_rsl.h> #include <openbsc/signal.h> -#include <openbsc/e1_input.h> +#include <openbsc/debug.h> +#include <osmocom/core/logging.h> +#include <osmocom/abis/e1_input.h> +#include <osmocom/abis/ipaccess.h> static int bts_model_hslfemto_start(struct gsm_network *net); +static void bts_model_hslfemto_e1line_bind_ops(struct e1inp_line *line); static struct gsm_bts_model model_hslfemto = { .type = GSM_BTS_TYPE_HSL_FEMTO, .start = bts_model_hslfemto_start, + .e1line_bind_ops = &bts_model_hslfemto_e1line_bind_ops, .nm_att_tlvdef = { .def = { /* no HSL specific OML attributes that we know of */ @@ -121,7 +126,7 @@ static int hslfemto_bootstrap_om(struct gsm_bts *bts) cur = msgb_put(msg, sizeof(oml_arfcn_bsic)); memcpy(msg->data, oml_arfcn_bsic, sizeof(oml_arfcn_bsic)); msg->dst = bts->c0->rsl_link; - _abis_nm_sendmsg(msg, 0); + abis_sendmsg(msg); /* Delay the OPSTART until after SI have been set via RSL */ //abis_nm_opstart(bts, NM_OC_BTS, 255, 255, 255); @@ -135,11 +140,11 @@ static int inp_sig_cb(unsigned int subsys, unsigned int signal, { struct input_signal_data *isd = signal_data; - if (subsys != SS_INPUT) + if (subsys != SS_L_INPUT) return 0; switch (signal) { - case S_INP_TEI_UP: + case S_L_INP_TEI_UP: switch (isd->link_type) { case E1INP_SIGN_OML: if (isd->trx->bts->type == GSM_BTS_TYPE_HSL_FEMTO) @@ -151,6 +156,8 @@ static int inp_sig_cb(unsigned int subsys, unsigned int signal, return 0; } +static struct gsm_network *hsl_gsmnet; + static int bts_model_hslfemto_start(struct gsm_network *net) { model_hslfemto.features.data = &model_hslfemto._features_data[0]; @@ -159,13 +166,147 @@ static int bts_model_hslfemto_start(struct gsm_network *net) gsm_btsmodel_set_feature(&model_hslfemto, BTS_FEAT_GPRS); gsm_btsmodel_set_feature(&model_hslfemto, BTS_FEAT_EGPRS); - osmo_signal_register_handler(SS_INPUT, inp_sig_cb, NULL); + osmo_signal_register_handler(SS_L_INPUT, inp_sig_cb, NULL); - /* Call A-bis input driver, start socket for OML and RSL. */ - return hsl_setup(net); + hsl_gsmnet = net; + return 0; } int bts_model_hslfemto_init(void) { return gsm_bts_model_register(&model_hslfemto); } + +#define OML_UP 0x0001 +#define RSL_UP 0x0002 + +struct gsm_bts *find_bts_by_serno(struct gsm_network *net, uint64_t serno) +{ + struct gsm_bts *bts; + + llist_for_each_entry(bts, &net->bts_list, list) { + if (bts->type != GSM_BTS_TYPE_HSL_FEMTO) + continue; + + if (serno == bts->hsl.serno) + return bts; + } + return NULL; +} + +/* This function is called once the OML/RSL link becomes up. */ +static struct e1inp_sign_link * +hsl_sign_link_up(void *unit_data, struct e1inp_line *line, + enum e1inp_sign_type type) +{ + struct hsl_unit *dev = unit_data; + struct gsm_bts *bts; + + bts = find_bts_by_serno(hsl_gsmnet, dev->serno); + if (!bts) { + LOGP(DLINP, LOGL_ERROR, "Unable to find BTS config for " + "serial number %lx\n", dev->serno); + return NULL; + } + DEBUGP(DLINP, "Identified HSL BTS Serial Number %lx\n", dev->serno); + + /* we shouldn't hardcode it, but HSL femto also hardcodes it... */ + bts->oml_tei = 255; + bts->c0->rsl_tei = 0; + bts->oml_link = e1inp_sign_link_create(&line->ts[E1INP_SIGN_OML-1], + E1INP_SIGN_OML, bts->c0, + bts->oml_tei, 0); + bts->c0->rsl_link = e1inp_sign_link_create(&line->ts[E1INP_SIGN_OML-1], + E1INP_SIGN_RSL, bts->c0, + bts->c0->rsl_tei, 0); + e1inp_event(&line->ts[E1INP_SIGN_OML-1], S_L_INP_TEI_UP, 255, 0); + e1inp_event(&line->ts[E1INP_SIGN_OML-1], S_L_INP_TEI_UP, 0, 0); + bts->ip_access.flags |= OML_UP; + bts->ip_access.flags |= (RSL_UP << 0); + + return bts->oml_link; +} + +void hsl_drop_oml(struct gsm_bts *bts) +{ + struct e1inp_line *line; + + if (!bts->oml_link) + return; + + line = bts->oml_link->ts->line; + e1inp_sign_link_destroy(bts->oml_link); + bts->oml_link = NULL; + + e1inp_sign_link_destroy(bts->c0->rsl_link); + bts->c0->rsl_link = NULL; + + bts->ip_access.flags = 0; +} + +static void hsl_sign_link_down(struct e1inp_line *line) +{ + /* No matter what link went down, we close both signal links. */ + struct e1inp_ts *ts = &line->ts[E1INP_SIGN_OML-1]; + struct e1inp_sign_link *link; + + llist_for_each_entry(link, &ts->sign.sign_links, list) { + struct gsm_bts *bts = link->trx->bts; + + hsl_drop_oml(bts); + /* Yes, we only use the first element of the list. */ + break; + } +} + +/* This function is called if we receive one OML/RSL message. */ +static int hsl_sign_link(struct msgb *msg) +{ + int ret = 0; + struct e1inp_sign_link *link = msg->dst; + struct e1inp_ts *e1i_ts = link->ts; + + switch (link->type) { + case E1INP_SIGN_OML: + if (!(link->trx->bts->ip_access.flags & OML_UP)) { + e1inp_event(e1i_ts, S_L_INP_TEI_UP, + link->tei, link->sapi); + link->trx->bts->ip_access.flags |= OML_UP; + } + ret = abis_nm_rcvmsg(msg); + break; + case E1INP_SIGN_RSL: + if (!(link->trx->bts->ip_access.flags & + (RSL_UP << link->trx->nr))) { + e1inp_event(e1i_ts, S_L_INP_TEI_UP, + link->tei, link->sapi); + link->trx->bts->ip_access.flags |= + (RSL_UP << link->trx->nr); + } + ret = abis_rsl_rcvmsg(msg); + break; + default: + LOGP(DLINP, LOGL_ERROR, "Unknown signal link type %d\n", + link->type); + msgb_free(msg); + break; + } + return ret; +} + +static struct e1inp_line_ops hsl_e1inp_line_ops = { + .cfg = { + .ipa = { + .addr = "0.0.0.0", + .role = E1INP_LINE_R_BSC, + }, + }, + .sign_link_up = hsl_sign_link_up, + .sign_link_down = hsl_sign_link_down, + .sign_link = hsl_sign_link, +}; + +static void bts_model_hslfemto_e1line_bind_ops(struct e1inp_line *line) +{ + e1inp_line_bind_ops(line, &hsl_e1inp_line_ops); +} |