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-rw-r--r--src/osmo-bts-litecell15/misc/lc15bts_mgr_calib.c292
1 files changed, 0 insertions, 292 deletions
diff --git a/src/osmo-bts-litecell15/misc/lc15bts_mgr_calib.c b/src/osmo-bts-litecell15/misc/lc15bts_mgr_calib.c
deleted file mode 100644
index badb5455..00000000
--- a/src/osmo-bts-litecell15/misc/lc15bts_mgr_calib.c
+++ /dev/null
@@ -1,292 +0,0 @@
-/* OCXO calibration control for Litecell 1.5 BTS management daemon */
-
-/* Copyright (C) 2015 by Yves Godin <support@nuranwireless.com>
- *
- * Based on sysmoBTS:
- * sysmobts_mgr_calib.c
- * (C) 2014,2015 by Holger Hans Peter Freyther
- * (C) 2014 by Harald Welte for the IPA code from the oml router
- *
- * 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 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 "misc/lc15bts_mgr.h"
-#include "misc/lc15bts_misc.h"
-#include "misc/lc15bts_clock.h"
-#include "misc/lc15bts_swd.h"
-#include "misc/lc15bts_par.h"
-#include "misc/lc15bts_led.h"
-#include "osmo-bts/msg_utils.h"
-
-#include <osmocom/core/logging.h>
-#include <osmocom/core/select.h>
-
-#include <osmocom/ctrl/control_cmd.h>
-
-#include <osmocom/gsm/ipa.h>
-#include <osmocom/gsm/protocol/ipaccess.h>
-
-#include <osmocom/abis/abis.h>
-#include <osmocom/abis/e1_input.h>
-#include <osmocom/abis/ipa.h>
-
-#include <time.h>
-
-static void calib_adjust(struct lc15bts_mgr_instance *mgr);
-static void calib_state_reset(struct lc15bts_mgr_instance *mgr, int reason);
-static void calib_loop_run(void *_data);
-
-static int ocxodac_saved_value = -1;
-
-enum calib_state {
- CALIB_INITIAL,
- CALIB_IN_PROGRESS,
-};
-
-enum calib_result {
- CALIB_FAIL_START,
- CALIB_FAIL_GPSFIX,
- CALIB_FAIL_CLKERR,
- CALIB_FAIL_OCXODAC,
- CALIB_SUCCESS,
-};
-
-static void calib_start(struct lc15bts_mgr_instance *mgr)
-{
- int rc;
-
- rc = lc15bts_clock_err_open();
- if (rc != 0) {
- LOGP(DCALIB, LOGL_ERROR, "Failed to open clock error module %d\n", rc);
- calib_state_reset(mgr, CALIB_FAIL_CLKERR);
- return;
- }
-
- rc = lc15bts_clock_dac_open();
- if (rc != 0) {
- LOGP(DCALIB, LOGL_ERROR, "Failed to open OCXO dac module %d\n", rc);
- calib_state_reset(mgr, CALIB_FAIL_OCXODAC);
- return;
- }
-
- calib_adjust(mgr);
-}
-
-static void calib_adjust(struct lc15bts_mgr_instance *mgr)
-{
- int rc;
- int fault;
- int error_ppt;
- int accuracy_ppq;
- int interval_sec;
- int dac_value;
- int new_dac_value;
- int dac_correction;
- time_t now;
- time_t last_gps_fix;
-
- rc = lc15bts_clock_err_get(&fault, &error_ppt,
- &accuracy_ppq, &interval_sec);
- if (rc < 0) {
- LOGP(DCALIB, LOGL_ERROR,
- "Failed to get clock error measurement %d\n", rc);
- calib_state_reset(mgr, CALIB_FAIL_CLKERR);
- return;
- }
-
- /* get current time */
- now = time(NULL);
-
- /* first time after start of manager program */
- if (mgr->gps.last_update == 0)
- mgr->gps.last_update = now;
-
- /* read last GPS 3D fix from storage */
- rc = lc15bts_par_get_gps_fix(&last_gps_fix);
- if (rc < 0) {
- LOGP(DCALIB, LOGL_NOTICE, "Last GPS 3D fix can not read (%d). Last GPS 3D fix sets to zero\n", rc);
- last_gps_fix = 0;
- }
-
- if (fault) {
- LOGP(DCALIB, LOGL_NOTICE, "GPS has no fix\n");
- calib_state_reset(mgr, CALIB_FAIL_GPSFIX);
- return;
- }
-
- /* We got GPS 3D fix */
- LOGP(DCALIB, LOGL_DEBUG, "Got GPS 3D fix warn_flags=0x%08x, last=%lld, now=%lld\n",
- mgr->lc15bts_ctrl.warn_flags,
- (long long)last_gps_fix,
- (long long)now);
-
- rc = lc15bts_clock_dac_get(&dac_value);
- if (rc < 0) {
- LOGP(DCALIB, LOGL_ERROR,
- "Failed to get OCXO dac value %d\n", rc);
- calib_state_reset(mgr, CALIB_FAIL_OCXODAC);
- return;
- }
-
- /* Set OCXO initial dac value */
- if (ocxodac_saved_value < 0)
- ocxodac_saved_value = dac_value;
-
- LOGP(DCALIB, LOGL_NOTICE,
- "Calibration ERR(%f PPB) ACC(%f PPB) INT(%d) DAC(%d)\n",
- error_ppt / 1000., accuracy_ppq / 1000000., interval_sec, dac_value);
-
- /* Need integration time to correct */
- if (interval_sec) {
- /* 1 unit of correction equal about 0.5 - 1 PPB correction */
- dac_correction = (int)(-error_ppt * 0.0015);
- new_dac_value = dac_value + dac_correction;
-
- if (new_dac_value > 4095)
- new_dac_value = 4095;
- else if (new_dac_value < 0)
- new_dac_value = 0;
-
- /* We have a fix, make sure the measured error is
- meaningful (10 times the accuracy) */
- if ((new_dac_value != dac_value) && ((100l * abs(error_ppt)) > accuracy_ppq)) {
-
- LOGP(DCALIB, LOGL_NOTICE,
- "Going to apply %d as new clock setting.\n",
- new_dac_value);
-
- rc = lc15bts_clock_dac_set(new_dac_value);
- if (rc < 0) {
- LOGP(DCALIB, LOGL_ERROR,
- "Failed to set OCXO dac value %d\n", rc);
- calib_state_reset(mgr, CALIB_FAIL_OCXODAC);
- return;
- }
- rc = lc15bts_clock_err_reset();
- if (rc < 0) {
- LOGP(DCALIB, LOGL_ERROR,
- "Failed to reset clock error module %d\n", rc);
- calib_state_reset(mgr, CALIB_FAIL_CLKERR);
- return;
- }
- }
- /* New conditions to store DAC value:
- * - Resolution accuracy less or equal than 0.01PPB (or 10000 PPQ)
- * - Error less or equal than 2PPB (or 2000PPT)
- * - Solution different than the last one */
- else if (accuracy_ppq <= 10000) {
- if((dac_value != ocxodac_saved_value) && (abs(error_ppt) < 2000)) {
- LOGP(DCALIB, LOGL_NOTICE, "Saving OCXO DAC value to memory... val = %d\n", dac_value);
- rc = lc15bts_clock_dac_save();
- if (rc < 0) {
- LOGP(DCALIB, LOGL_ERROR,
- "Failed to save OCXO dac value %d\n", rc);
- calib_state_reset(mgr, CALIB_FAIL_OCXODAC);
- } else {
- ocxodac_saved_value = dac_value;
- }
- }
-
- rc = lc15bts_clock_err_reset();
- if (rc < 0) {
- LOGP(DCALIB, LOGL_ERROR,
- "Failed to reset clock error module %d\n", rc);
- calib_state_reset(mgr, CALIB_FAIL_CLKERR);
- }
- }
- } else {
- LOGP(DCALIB, LOGL_NOTICE, "Skipping this iteration, no integration time\n");
- }
-
- calib_state_reset(mgr, CALIB_SUCCESS);
- return;
-}
-
-static void calib_close(struct lc15bts_mgr_instance *mgr)
-{
- lc15bts_clock_err_close();
- lc15bts_clock_dac_close();
-}
-
-static void calib_state_reset(struct lc15bts_mgr_instance *mgr, int outcome)
-{
- if (mgr->calib.calib_from_loop) {
- /*
- * In case of success calibrate in two hours again
- * and in case of a failure in some minutes.
- *
- * TODO NTQ: Select timeout based on last error and accuracy
- */
- int timeout = 60;
- //int timeout = 2 * 60 * 60;
- //if (outcome != CALIB_SUCESS) }
- // timeout = 5 * 60;
- //}
-
- mgr->calib.calib_timeout.data = mgr;
- mgr->calib.calib_timeout.cb = calib_loop_run;
- osmo_timer_schedule(&mgr->calib.calib_timeout, timeout, 0);
- /* TODO: do we want to notify if we got a calibration error, like no gps fix? */
- lc15bts_swd_event(mgr, SWD_CHECK_CALIB);
- }
-
- mgr->calib.state = CALIB_INITIAL;
- calib_close(mgr);
-}
-
-static int calib_run(struct lc15bts_mgr_instance *mgr, int from_loop)
-{
- if (mgr->calib.state != CALIB_INITIAL) {
- LOGP(DCALIB, LOGL_ERROR, "Calib is already in progress.\n");
- return -1;
- }
-
- mgr->calib.calib_from_loop = from_loop;
-
- /* From now on everything will be handled from the failure */
- mgr->calib.state = CALIB_IN_PROGRESS;
- calib_start(mgr);
- return 0;
-}
-
-static void calib_loop_run(void *_data)
-{
- int rc;
- struct lc15bts_mgr_instance *mgr = _data;
-
- LOGP(DCALIB, LOGL_NOTICE, "Going to calibrate the system.\n");
- rc = calib_run(mgr, 1);
- if (rc != 0) {
- calib_state_reset(mgr, CALIB_FAIL_START);
- }
-}
-
-int lc15bts_mgr_calib_run(struct lc15bts_mgr_instance *mgr)
-{
- return calib_run(mgr, 0);
-}
-
-int lc15bts_mgr_calib_init(struct lc15bts_mgr_instance *mgr)
-{
- mgr->calib.state = CALIB_INITIAL;
- mgr->calib.calib_timeout.data = mgr;
- mgr->calib.calib_timeout.cb = calib_loop_run;
- osmo_timer_schedule(&mgr->calib.calib_timeout, 0, 0);
-
- return 0;
-}
-
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