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Alvaro Neira Ayuso anayuso at sysmocom.deFrom: Álvaro Neira Ayuso <anayuso at sysmocom.de>
Added functions for changing the power transmitter in case of we receive
a Failure Event report from the manager. The sbts2050 decress the
power transmitter with the value that we have configured in the manager.
For doing that the manager send a OML message with the power that we want
to decress in warning case and too send another OML message for restoring
the power transmitter.
Signed-off-by: Alvaro Neira Ayuso <anayuso at sysmocom.de>
---
[changes in v8]
* Changed the variable NM_ATT_SBTS_REDUCEPOWER to NM_ATT_O_REDUCEPOWER
src/osmo-bts-sysmo/main.c | 123 ++++++++++++++++++++++++++++++-
src/osmo-bts-sysmo/misc/sysmobts_mgr.c | 32 +++++---
src/osmo-bts-sysmo/misc/sysmobts_mgr.h | 5 ++
src/osmo-bts-sysmo/misc/sysmobts_misc.c | 69 +++++++++++++++++
src/osmo-bts-sysmo/misc/sysmobts_misc.h | 2 +
5 files changed, 220 insertions(+), 11 deletions(-)
diff --git a/src/osmo-bts-sysmo/main.c b/src/osmo-bts-sysmo/main.c
index acdf6fc..76305be 100644
--- a/src/osmo-bts-sysmo/main.c
+++ b/src/osmo-bts-sysmo/main.c
@@ -39,6 +39,7 @@
#include <osmocom/vty/telnet_interface.h>
#include <osmocom/vty/logging.h>
#include <osmocom/gsm/protocol/ipaccess.h>
+#include <osmocom/gsm/abis_nm.h>
#include <osmo-bts/gsm_data.h>
#include <osmo-bts/logging.h>
@@ -294,10 +295,107 @@ static int write_pid_file(char *procname)
return 0;
}
+#define oml_tlv_parse(dec, buf, len) \
+ tlv_parse(dec, &abis_nm_att_tlvdef, buf, len, 0, 0)
+
+static int send_oml_fom_ack_nack(int fd_unix, struct msgb *old_msg,
+ uint8_t cause, int is_manuf)
+{
+ struct abis_om_hdr *old_om = msgb_l2(old_msg);
+ struct abis_om_fom_hdr *old_foh = msgb_l3(old_msg);
+ struct msgb *msg;
+ struct abis_om_fom_hdr *foh;
+ struct abis_om_hdr *om;
+ int rc;
+
+ msg = oml_msgb_alloc();
+ if (!msg)
+ return -ENOMEM;
+
+ msg->l3h = msgb_push(msg, sizeof(*foh));
+ foh = (struct abis_om_fom_hdr *) msg->l3h;
+ memcpy(foh, old_foh, sizeof(*foh));
+
+ if (is_manuf) {
+ /* length byte, string + 0 termination */
+ uint8_t *manuf = msgb_push(msg, 1 + sizeof(osmocom_magic));
+ manuf[0] = strlen(osmocom_magic)+1;
+ memcpy(manuf+1, osmocom_magic, strlen(osmocom_magic));
+ }
+
+ msg->l2h = msgb_push(msg, sizeof(*om));
+ om = (struct abis_om_hdr *) msg->l2h;
+ memcpy(om, old_om, sizeof(*om));
+
+ /* alter message type */
+ if (cause) {
+ LOGP(DOML, LOGL_ERROR, "Sending FOM NACK with cause %s.\n",
+ abis_nm_nack_cause_name(cause));
+ foh->msg_type += 2; /* nack */
+ msgb_tv_put(msg, NM_ATT_NACK_CAUSES, cause);
+ } else {
+ LOGP(DOML, LOGL_DEBUG, "Sending FOM ACK.\n");
+ foh->msg_type++; /* ack */
+ }
+
+ prepend_oml_ipa_header(msg);
+
+ rc = send(fd_unix, msg->data, msg->len, 0);
+ if (rc < 0 || rc != msg->len) {
+ LOGP(DTEMP, LOGL_ERROR, "Error writting in unix socket\n");
+ close(fd_unix);
+ msgb_free(msg);
+ return -1;
+ }
+
+ return rc;
+}
+
+static void update_transmiter_power(struct gsm_bts_trx *trx)
+{
+ struct femtol1_hdl *fl1h = trx_femtol1_hdl(trx);
+
+ if (fl1h->hLayer1)
+ l1if_set_txpower(fl1h, sysmobts_get_power_trx(trx));
+}
+
+static int take_reduce_power(struct msgb *msg)
+{
+ int recv_reduce_power;
+ struct tlv_parsed tlv_out;
+ struct gsm_bts_trx *trx = bts->c0;
+ int rc, abis_oml_hdr_len;
+
+ abis_oml_hdr_len = sizeof(struct abis_om_hdr);
+ abis_oml_hdr_len += sizeof(struct abis_om_fom_hdr);
+ abis_oml_hdr_len += sizeof(osmocom_magic) + 1;
+
+ rc = oml_tlv_parse(&tlv_out, msg->data + abis_oml_hdr_len,
+ msg->len - abis_oml_hdr_len);
+
+ if (rc < 0) {
+ msgb_free(msg);
+ return -1;
+ }
+
+ if (TLVP_PRESENT(&tlv_out, NM_ATT_O_REDUCEPOWER))
+ recv_reduce_power = *TLVP_VAL(&tlv_out,
+ NM_ATT_O_REDUCEPOWER);
+ else
+ return -1;
+
+ trx->power_reduce = recv_reduce_power;
+
+ update_transmiter_power(trx);
+
+ return 0;
+}
+
static int read_sock(struct osmo_fd *fd, unsigned int what)
{
struct msgb *msg;
struct gsm_abis_mo *mo;
+ struct abis_om_fom_hdr *fom;
int rc;
msg = oml_msgb_alloc();
@@ -323,9 +421,32 @@ static int read_sock(struct osmo_fd *fd, unsigned int what)
mo = &bts->mo;
msg->trx = mo->bts->c0;
+ fom = (struct abis_om_fom_hdr *) msg->l3h;
- return abis_oml_sendmsg(msg);
+ switch (fom->msg_type) {
+ case NM_MT_SET_RADIO_ATTR:
+ rc = take_reduce_power(msg);
+ if (rc < 0) {
+ rc = send_oml_fom_ack_nack(fd->fd, msg,
+ NM_NACK_INCORR_STRUCT, 1);
+ } else {
+ rc = send_oml_fom_ack_nack(fd->fd, msg, 0, 1);
+ }
+ msgb_free(msg);
+ break;
+ case NM_MT_FAILURE_EVENT_REP:
+ rc = abis_oml_sendmsg(msg);
+ break;
+ default:
+ LOGP(DL1C, LOGL_ERROR, "Unknown Fom message type %d\n",
+ fom->msg_type);
+ goto err;
+ }
+ if (rc < 0)
+ goto err;
+
+ return rc;
err:
msgb_free(msg);
return -1;
diff --git a/src/osmo-bts-sysmo/misc/sysmobts_mgr.c b/src/osmo-bts-sysmo/misc/sysmobts_mgr.c
index 99e95d5..bb9bcac 100644
--- a/src/osmo-bts-sysmo/misc/sysmobts_mgr.c
+++ b/src/osmo-bts-sysmo/misc/sysmobts_mgr.c
@@ -82,6 +82,7 @@ static struct vty_app_info vty_info = {
#ifdef BUILD_SBTS2050
static int trx_nr = -1;
static int state_connection;
+static int status_change_power_red;
static struct osmo_timer_list connect_timer;
static void socket_connect_cb(void *data)
@@ -138,17 +139,18 @@ static void check_uctemp_timer_cb(void *data)
{
int temp_pa = 0, temp_board = 0;
struct uc *ucontrol0 = data;
+ int pa_warning, board_warning;
sbts2050_uc_check_temp(ucontrol0, &temp_pa, &temp_board);
confinfo.temp_pa_cur = temp_pa;
confinfo.temp_board_cur = temp_board;
- check_temperature(ucontrol0,
- confinfo.temp_min_pa_warn_limit,
- confinfo.temp_max_pa_warn_limit,
- temp_pa, SBTS2050_TEMP_PA,
- SBTS2050_WARN_ALERT);
+ pa_warning = check_temperature(ucontrol0,
+ confinfo.temp_min_pa_warn_limit,
+ confinfo.temp_max_pa_warn_limit,
+ temp_pa, SBTS2050_TEMP_PA,
+ SBTS2050_WARN_ALERT);
check_temperature(ucontrol0,
confinfo.temp_min_pa_severe_limit,
@@ -156,11 +158,11 @@ static void check_uctemp_timer_cb(void *data)
temp_pa, SBTS2050_TEMP_PA,
SBTS2050_SEVERE_ALERT);
- check_temperature(ucontrol0,
- confinfo.temp_min_board_warn_limit,
- confinfo.temp_max_board_warn_limit,
- temp_board, SBTS2050_TEMP_BOARD,
- SBTS2050_WARN_ALERT);
+ board_warning = check_temperature(ucontrol0,
+ confinfo.temp_min_board_warn_limit,
+ confinfo.temp_max_board_warn_limit,
+ temp_board, SBTS2050_TEMP_BOARD,
+ SBTS2050_WARN_ALERT);
check_temperature(ucontrol0,
confinfo.temp_min_board_severe_limit,
@@ -168,6 +170,16 @@ static void check_uctemp_timer_cb(void *data)
temp_board, SBTS2050_TEMP_BOARD,
SBTS2050_SEVERE_ALERT);
+ if ((pa_warning || board_warning) &&
+ status_change_power_red == SBTS2050_DISABLE_CHANGE_POWER) {
+ status_change_power_red = SBTS2050_ENABLE_CHANGE_POWER;
+ send_omlreduce(fd_unix, confinfo.reduce_max_power, trx_nr);
+ } else if (!pa_warning && !board_warning &&
+ status_change_power_red == SBTS2050_ENABLE_CHANGE_POWER) {
+ status_change_power_red = SBTS2050_DISABLE_CHANGE_POWER;
+ send_omlreduce(fd_unix, 0, trx_nr);
+ }
+
osmo_timer_schedule(&temp_uc_timer, TEMP_TIMER_SECS, 0);
}
#endif
diff --git a/src/osmo-bts-sysmo/misc/sysmobts_mgr.h b/src/osmo-bts-sysmo/misc/sysmobts_mgr.h
index 5e0d4a7..026afd5 100644
--- a/src/osmo-bts-sysmo/misc/sysmobts_mgr.h
+++ b/src/osmo-bts-sysmo/misc/sysmobts_mgr.h
@@ -15,6 +15,11 @@ enum {
SYSMO_MGR_CONNECTED,
};
+enum {
+ SBTS2050_DISABLE_CHANGE_POWER = 0,
+ SBTS2050_ENABLE_CHANGE_POWER,
+};
+
#define SOCKET_PATH "/var/run/bts_oml"
struct sbts2050_config_info;
diff --git a/src/osmo-bts-sysmo/misc/sysmobts_misc.c b/src/osmo-bts-sysmo/misc/sysmobts_misc.c
index 2030888..14b2985 100644
--- a/src/osmo-bts-sysmo/misc/sysmobts_misc.c
+++ b/src/osmo-bts-sysmo/misc/sysmobts_misc.c
@@ -58,6 +58,23 @@
#define OM_HEADROOM_SIZE 128
#ifdef BUILD_SBTS2050
+
+static int check_omlreduce_nach_ack(struct msgb *msg)
+{
+ struct abis_om_fom_hdr *foh = msgb_l3(msg);
+
+ if (foh->msg_type == NM_MT_SET_RADIO_ATTR + 2) { /* NACK */
+ LOGP(DTEMP, LOGL_ERROR, "Reduce Power: Received a BTS NACK\n");
+ return -1;
+ } else if (foh->msg_type != NM_MT_SET_RADIO_ATTR + 1) { /* ACK */
+ LOGP(DTEMP, LOGL_ERROR, "Unknown message type %d\n",
+ foh->msg_type);
+ return -1;
+ }
+
+ return 0;
+}
+
static void add_sw_descr(struct msgb *msg)
{
char file_version[255];
@@ -116,6 +133,58 @@ static void add_oml_hdr_msg(struct msgb *msg, uint8_t msg_type,
omh->length = msgb_l3len(msg);
}
+int send_omlreduce(int fd_unix, int reduce_power, int trx_nr)
+{
+ int rc;
+ struct msgb *msg;
+
+ msg = msgb_alloc_headroom(OM_ALLOC_SIZE, OM_HEADROOM_SIZE, "OML");
+ if (msg == NULL) {
+ LOGP(DTEMP, LOGL_ERROR, "Error creating oml msg\n");
+ return -1;
+ }
+
+ add_oml_hdr_msg(msg, NM_MT_SET_RADIO_ATTR, 2, 0, trx_nr, 255, 1);
+
+ msgb_tv_put(msg, NM_ATT_O_REDUCEPOWER, reduce_power);
+
+ prepend_oml_ipa_header(msg);
+
+ rc = send(fd_unix, msg->data, msg->len, 0);
+ if (rc < 0 || rc != msg->len) {
+ LOGP(DTEMP, LOGL_ERROR, "Error writting to unix socket\n");
+ goto err;
+ }
+
+ msgb_reset(msg);
+ rc = recv(fd_unix, msg->tail, msg->data_len, 0);
+ if (rc <= 0) {
+ LOGP(DTEMP, LOGL_ERROR, "Error reading from unix socket\n");
+ goto err;
+ }
+ msgb_put(msg, rc);
+
+ if (check_oml_msg(msg) < 0) {
+ close(fd_unix);
+ msgb_free(msg);
+ return -1;
+ }
+
+ if (check_omlreduce_nach_ack(msg) < 0) {
+ close(fd_unix);
+ msgb_free(msg);
+ return -1;
+ }
+
+ msgb_free(msg);
+ return SYSMO_MGR_CONNECTED;
+
+err:
+ close(fd_unix);
+ msgb_free(msg);
+ return SYSMO_MGR_DISCONNECTED;
+}
+
int send_omlfailure(int fd_unix, enum sbts2050_alert_lvl alert,
enum sbts2050_temp_sensor sensor,
struct sbts2050_config_info *add_info, int trx_nr)
diff --git a/src/osmo-bts-sysmo/misc/sysmobts_misc.h b/src/osmo-bts-sysmo/misc/sysmobts_misc.h
index c22a54b..158e7a2 100644
--- a/src/osmo-bts-sysmo/misc/sysmobts_misc.h
+++ b/src/osmo-bts-sysmo/misc/sysmobts_misc.h
@@ -75,6 +75,8 @@ int send_omlfailure(int fd_unix, enum sbts2050_alert_lvl alert,
enum sbts2050_temp_sensor sensor,
struct sbts2050_config_info *add_info, int trx_nr);
+int send_omlreduce(int fd_unix, int reduce_power, int trx_nr);
+
int sysmobts_update_hours(int no_epprom_write);
enum sysmobts_firmware_type {
--
1.7.10.4