[HSL] initial support for the HSL 2.75G Femtocell
The HSL Femtocell seems to be a poor man implementation of the
ip.access Abis/IP protocol, but cutting corners wherever possible.
We try to workaround those corners wherever possible...
diff --git a/openbsc/src/libbsc/bts_hsl_femtocell.c b/openbsc/src/libbsc/bts_hsl_femtocell.c
new file mode 100644
index 0000000..2813195
--- /dev/null
+++ b/openbsc/src/libbsc/bts_hsl_femtocell.c
@@ -0,0 +1,146 @@
+/* OpenBSC support code for HSL Femtocell */
+
+/* (C) 2011 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2011 by OnWaves
+ *
+ * All Rights Reserved
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <sys/types.h>
+
+#include <arpa/inet.h>
+
+#include <osmocore/tlv.h>
+#include <openbsc/gsm_data.h>
+#include <openbsc/abis_nm.h>
+#include <openbsc/abis_rsl.h>
+#include <openbsc/signal.h>
+#include <openbsc/e1_input.h>
+
+static struct gsm_bts_model model_hslfemto = {
+ .type = GSM_BTS_TYPE_HSL_FEMTO,
+ .nm_att_tlvdef = {
+ .def = {
+ /* no HSL specific OML attributes that we know of */
+ },
+ },
+};
+
+
+static const uint8_t l1_msg[] = {
+ 0x80, 0x8a,
+ 0xC4, 0x0b,
+};
+
+static const uint8_t conn_trau_msg[] = {
+ 0x80, 0x81,
+ 0xC1, 16,
+ 0x02, 0x00, 0x00, 0x00, 0xC0, 0xA8, 0xEA, 0x01,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+static const uint8_t conn_trau_msg2[] = {
+ 0x80, 0x81,
+ 0xC1, 16,
+ 0x02, 0x00, 0xd4, 0x07, 0xC0, 0xA8, 0xEA, 0x01,
+ 0x38, 0xA4, 0x45, 0x00, 0x04, 0x59, 0x40, 0x00
+};
+
+static uint8_t oml_arfcn_bsic[] = {
+ 0x81, 0x80, 0x00, 10,
+ NM_MT_SET_BTS_ATTR, NM_OC_BTS, 0xff, 0xff, 0xff,
+ NM_ATT_BCCH_ARFCN, 0x03, 0x67,
+ NM_ATT_BSIC, 0x00
+};
+
+static inline struct msgb *hsl_alloc_msgb(void)
+{
+ return msgb_alloc_headroom(1024, 127, "HSL");
+}
+
+static int hslfemto_bootstrap_om(struct gsm_bts *bts)
+{
+ struct msgb *msg;
+ uint8_t *cur;
+
+ msg = hsl_alloc_msgb();
+ cur = msgb_put(msg, sizeof(l1_msg));
+ memcpy(msg->data, l1_msg, sizeof(l1_msg));
+ msg->trx = bts->c0;
+ abis_rsl_sendmsg(msg);
+
+#if 1
+ msg = hsl_alloc_msgb();
+ cur = msgb_put(msg, sizeof(conn_trau_msg));
+ memcpy(msg->data, conn_trau_msg, sizeof(conn_trau_msg));
+ msg->trx = bts->c0;
+ abis_rsl_sendmsg(msg);
+#endif
+ msg = hsl_alloc_msgb();
+ cur = msgb_put(msg, sizeof(conn_trau_msg2));
+ memcpy(msg->data, conn_trau_msg2, sizeof(conn_trau_msg2));
+ msg->trx = bts->c0;
+ abis_rsl_sendmsg(msg);
+
+ *((uint16_t *)oml_arfcn_bsic+10) = htons(bts->c0->arfcn);
+ oml_arfcn_bsic[13] = bts->bsic;
+
+ msg = hsl_alloc_msgb();
+ cur = msgb_put(msg, sizeof(oml_arfcn_bsic));
+ memcpy(msg->data, oml_arfcn_bsic, sizeof(oml_arfcn_bsic));
+ msg->trx = bts->c0;
+ _abis_nm_sendmsg(msg, 0);
+
+ /* Delay the OPSTART until after SI have been set via RSL */
+ //abis_nm_opstart(bts, NM_OC_BTS, 255, 255, 255);
+
+ return 0;
+}
+
+/* Callback function to be called every time we receive a signal from INPUT */
+static int inp_sig_cb(unsigned int subsys, unsigned int signal,
+ void *handler_data, void *signal_data)
+{
+ struct input_signal_data *isd = signal_data;
+
+ if (subsys != SS_INPUT)
+ return 0;
+
+ switch (signal) {
+ case S_INP_TEI_UP:
+ switch (isd->link_type) {
+ case E1INP_SIGN_OML:
+ hslfemto_bootstrap_om(isd->trx->bts);
+ break;
+ }
+ }
+
+ return 0;
+}
+
+int bts_model_hslfemto_init(void)
+{
+ model_hslfemto.features.data = &model_hslfemto._features_data[0];
+ model_hslfemto.features.data_len = sizeof(model_hslfemto._features_data);
+
+ gsm_btsmodel_set_feature(&model_hslfemto, BTS_FEAT_GPRS);
+ gsm_btsmodel_set_feature(&model_hslfemto, BTS_FEAT_EGPRS);
+
+ register_signal_handler(SS_INPUT, inp_sig_cb, NULL);
+
+ return gsm_bts_model_register(&model_hslfemto);
+}