implement nanoBTS frequency error test
This helps us to detect the frequency error of BS-11 if it is located
next to the nanoBTS 900.
If 'ipaccess-config -l' is called, it will produce a report like
<0020> ipaccess-config.c:85 TEST REPORT: test_no=0x42 test_res=0
<0020> ipaccess-config.c:108 ==> ARFCN 220, Frequency Error 22
<0020> ipaccess-config.c:108 ==> ARFCN 1, Frequency Error -37
<0020> ipaccess-config.c:108 ==> ARFCN 10, Frequency Error 0
<0020> ipaccess-config.c:108 ==> ARFCN 20, Frequency Error 11
<0020> ipaccess-config.c:108 ==> ARFCN 53, Frequency Error 5
<0020> ipaccess-config.c:108 ==> ARFCN 63, Frequency Error -4
<0020> ipaccess-config.c:108 ==> ARFCN 84, Frequency Error 11
<0020> ipaccess-config.c:108 ==> ARFCN 101, Frequency Error 0
<0020> ipaccess-config.c:108 ==> ARFCN 123, Frequency Error -52
where in this case the ARFCN 123 is the BS-11 with a frequency error
larger than all the other (regular) BTS in the vicinity.
diff --git a/openbsc/include/openbsc/abis_nm.h b/openbsc/include/openbsc/abis_nm.h
index 3dc5531..d8cd9fa 100644
--- a/openbsc/include/openbsc/abis_nm.h
+++ b/openbsc/include/openbsc/abis_nm.h
@@ -681,6 +681,11 @@
int abis_nm_conn_mdrop_link(struct gsm_bts *bts, u_int8_t e1_port0, u_int8_t ts0,
u_int8_t e1_port1, u_int8_t ts1);
+int abis_nm_perform_test(struct gsm_bts *bts, u_int8_t obj_class,
+ u_int8_t bts_nr, u_int8_t trx_nr, u_int8_t ts_nr,
+ u_int8_t test_nr, u_int8_t auton_report,
+ u_int8_t *phys_config, u_int16_t phys_config_len);
+
/* Siemens / BS-11 specific */
int abis_nm_bs11_reset_resource(struct gsm_bts *bts);
int abis_nm_bs11_db_transmission(struct gsm_bts *bts, int begin);
diff --git a/openbsc/include/openbsc/signal.h b/openbsc/include/openbsc/signal.h
index 2ce812d..bdccd39 100644
--- a/openbsc/include/openbsc/signal.h
+++ b/openbsc/include/openbsc/signal.h
@@ -57,6 +57,7 @@
S_NM_FAIL_REP, /* GSM 12.21 failure event report */
S_NM_NACK, /* GSM 12.21 various NM_MT_*_NACK happened */
S_NM_IPACC_NACK, /* GSM 12.21 nanoBTS extensions NM_MT_IPACC_*_*_NACK happened */
+ S_NM_TEST_REP, /* GSM 12.21 Test Report */
};
/* SS_LCHAN signals */
diff --git a/openbsc/src/abis_nm.c b/openbsc/src/abis_nm.c
index 0eb8657..31f1df0 100644
--- a/openbsc/src/abis_nm.c
+++ b/openbsc/src/abis_nm.c
@@ -801,6 +801,10 @@
rx_fail_evt_rep(mb);
dispatch_signal(SS_NM, S_NM_FAIL_REP, mb);
break;
+ case NM_MT_TEST_REP:
+ DEBUGPC(DNM, "Test Report\n");
+ dispatch_signal(SS_NM, S_NM_TEST_REP, mb);
+ break;
default:
DEBUGPC(DNM, "reporting NM MT 0x%02x\n", mt);
break;
@@ -1790,6 +1794,33 @@
return abis_nm_sendmsg(bts, msg);
}
+/* Chapter 8.7.1 */
+int abis_nm_perform_test(struct gsm_bts *bts, u_int8_t obj_class,
+ u_int8_t bts_nr, u_int8_t trx_nr, u_int8_t ts_nr,
+ u_int8_t test_nr, u_int8_t auton_report,
+ u_int8_t *phys_config, u_int16_t phys_config_len)
+{
+ struct abis_om_hdr *oh;
+ struct msgb *msg = nm_msgb_alloc();
+ int len = 4; /* 2 TV attributes */
+
+ DEBUGP(DNM, "PEFORM TEST\n");
+
+ if (phys_config_len)
+ len += 3 + phys_config_len;
+
+ oh = (struct abis_om_hdr *) msgb_put(msg, ABIS_OM_FOM_HDR_SIZE);
+ fill_om_fom_hdr(oh, len, NM_MT_PERF_TEST,
+ obj_class, bts_nr, trx_nr, ts_nr);
+ msgb_tv_put(msg, NM_ATT_TEST_NO, test_nr);
+ msgb_tv_put(msg, NM_ATT_AUTON_REPORT, auton_report);
+ if (phys_config_len)
+ msgb_tl16v_put(msg, NM_ATT_PHYS_CONF, phys_config_len,
+ phys_config);
+
+ return abis_nm_sendmsg(bts, msg);
+}
+
int abis_nm_event_reports(struct gsm_bts *bts, int on)
{
if (on == 0)
diff --git a/openbsc/src/ipaccess-config.c b/openbsc/src/ipaccess-config.c
index 5ccbaa7..a7fb9c4 100644
--- a/openbsc/src/ipaccess-config.c
+++ b/openbsc/src/ipaccess-config.c
@@ -38,9 +38,11 @@
#include <openbsc/e1_input.h>
#include <openbsc/abis_nm.h>
#include <openbsc/signal.h>
+#include <openbsc/debug.h>
static struct gsm_network *gsmnet;
+static int net_listen;
static int restart;
static char *prim_oml_ip;
static char *unit_id;
@@ -66,12 +68,61 @@
return 0;
}
+struct ipacc_ferr_elem {
+ int16_t freq_err;
+ u_int8_t freq_qual;
+ u_int8_t arfcn;
+} __attribute__((packed));
+
+static int test_rep(void *_msg)
+{
+ struct msgb *msg = _msg;
+ struct abis_om_fom_hdr *foh = msgb_l3(msg);
+ u_int16_t test_rep_len, ferr_list_len;
+ struct ipacc_ferr_elem *ife;
+ int i;
+
+ DEBUGP(DNM, "TEST REPORT: ");
+
+ if (foh->data[0] != NM_ATT_TEST_NO ||
+ foh->data[2] != NM_ATT_TEST_REPORT)
+ return -EINVAL;
+
+ DEBUGPC(DNM, "test_no=0x%02x ", foh->data[1]);
+ /* data[2] == NM_ATT_TEST_REPORT */
+ /* data[3..4]: test_rep_len */
+ test_rep_len = ntohs(*(u_int16_t *) &foh->data[3]);
+ /* data[5]: ip.access test result */
+ DEBUGPC(DNM, "test_res=%u\n", foh->data[5]);
+
+ /* data[6]: ip.access nested IE. 3 == freq_err_list */
+ switch (foh->data[6]) {
+ case 3:
+ /* data[7..8]: length of ferr_list */
+ ferr_list_len = ntohs(*(u_int16_t *) &foh->data[7]);
+
+ /* data[9...]: frequency error list elements */
+ for (i = 0; i < ferr_list_len; i+= sizeof(*ife)) {
+ ife = (struct ipacc_ferr_elem *) (foh->data + 9 + i);
+ DEBUGP(DNM, "==> ARFCN %4u, Frequency Error %6hd\n",
+ ife->arfcn, ntohs(ife->freq_err));
+ }
+ break;
+ default:
+ break;
+ }
+
+ return 0;
+}
+
static int nm_sig_cb(unsigned int subsys, unsigned int signal,
void *handler_data, void *signal_data)
{
switch (signal) {
case S_NM_IPACC_NACK:
return ipacc_msg_nack((int)signal_data);
+ case S_NM_TEST_REP:
+ return test_rep(signal_data);
default:
break;
}
@@ -141,6 +192,9 @@
printf("restarting BTS\n");
abis_nm_ipaccess_restart(bts);
}
+
+ if (net_listen) {
+ }
}
void input_event(int event, enum e1inp_sign_type type, struct gsm_bts_trx *trx)
@@ -170,6 +224,16 @@
int nm_state_event(enum nm_evt evt, u_int8_t obj_class, void *obj,
struct gsm_nm_state *old_state, struct gsm_nm_state *new_state)
{
+ if (evt == EVT_STATECHG_OPER &&
+ obj_class == NM_OC_RADIO_CARRIER &&
+ new_state->availability == 3 &&
+ net_listen) {
+ struct gsm_bts_trx *trx = obj;
+ u_int8_t phys_config[] = { 0x02, 0x0a, 0x00, 0x01, 0x02 };
+ abis_nm_perform_test(trx->bts, 2, 0, 0, 0xff,
+ NM_IPACC_TESTNO_FREQ_SYNC, 1,
+ phys_config, sizeof(phys_config));
+ }
return 0;
}
@@ -183,7 +247,8 @@
printf(" -u --unit-id UNIT_ID\n");
printf(" -o --oml-ip ip\n");
printf(" -r --restart\n");
- printf(" -n flags/mask Set NVRAM attributes.\n");
+ printf(" -n flags/mask\tSet NVRAM attributes.\n");
+ printf(" -l --listen\tPerform Frequency Error test\n");
printf(" -h --help this text\n");
}
@@ -205,9 +270,10 @@
{ "oml-ip", 1, 0, 'o' },
{ "restart", 0, 0, 'r' },
{ "help", 0, 0, 'h' },
+ { "listen", 0, 0, 'l' },
};
- c = getopt_long(argc, argv, "u:o:rn:h", long_options,
+ c = getopt_long(argc, argv, "u:o:rn:lh", long_options,
&option_index);
if (c == -1)
@@ -232,6 +298,9 @@
ul = strtoul(slash+1, NULL, 16);
nv_mask = ul & 0xffff;
break;
+ case 'l':
+ net_listen = 1;
+ break;
case 'h':
print_usage();
print_help();