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Add new unit-test for transmit power computation code 

This tests the computations of the tx_power.c code using sysmoBTS 1002,
1020, 1100 and 2050 values, as well as the power ramping code.

Change-Id: I1cc88d4c6edff326e2e67d4f869aa02c9b2b1ac5
This commit is contained in:
Harald Welte 2017-02-07 16:12:17 +01:00
parent df5ac9aa11
commit 69d297ce75
8 changed files with 318 additions and 1 deletions
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1
.gitignore vendored
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@ -48,6 +48,7 @@ tests/sysmobts/sysmobts_test
tests/misc/misc_test
tests/bursts/bursts_test
tests/handover/handover_test
tests/tx_power/tx_power_test
tests/testsuite
tests/testsuite.log

1
configure.ac
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@ -144,4 +144,5 @@ AC_OUTPUT(
tests/misc/Makefile
tests/bursts/Makefile
tests/handover/Makefile
tests/tx_power/Makefile
Makefile)

2
tests/Makefile.am
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@ -1,4 +1,4 @@
SUBDIRS = paging cipher agch misc bursts handover
SUBDIRS = paging cipher agch misc bursts handover tx_power
if ENABLE_SYSMOBTS
SUBDIRS += sysmobts

7
tests/testsuite.at
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@ -36,3 +36,10 @@ AT_KEYWORDS([handover])
cat $abs_srcdir/handover/handover_test.ok > expout
AT_CHECK([$abs_top_builddir/tests/handover/handover_test], [], [expout], [ignore])
AT_CLEANUP
AT_SETUP([tx_power])
AT_KEYWORDS([tx_power])
cat $abs_srcdir/tx_power/tx_power_test.ok > expout
cat $abs_srcdir/tx_power/tx_power_test.err > experr
AT_CHECK([$abs_top_builddir/tests/tx_power/tx_power_test], [], [expout], [experr])
AT_CLEANUP

8
tests/tx_power/Makefile.am Normal file
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@ -0,0 +1,8 @@
AM_CPPFLAGS = $(all_includes) -I$(top_srcdir)/include -I$(OPENBSC_INCDIR)
AM_CFLAGS = -Wall $(LIBOSMOCORE_CFLAGS) $(LIBOSMOGSM_CFLAGS) $(LIBOSMOCODEC_CFLAGS)$(LIBOSMOTRAU_CFLAGS)
LDADD = $(LIBOSMOCORE_LIBS) $(LIBOSMOGSM_LIBS) $(LIBOSMOCODEC_LIBS) $(LIBOSMOTRAU_LIBS) $(LIBOSMOABIS_LIBS)
noinst_PROGRAMS = tx_power_test
EXTRA_DIST = tx_power_test.ok tx_power_test.err
tx_power_test_SOURCES = tx_power_test.c $(srcdir)/../stubs.c
tx_power_test_LDADD = $(top_builddir)/src/common/libbts.a $(LDADD)

239
tests/tx_power/tx_power_test.c Normal file
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@ -0,0 +1,239 @@
/* Test cases for tx_power.c Transmit Power Computation */
/* (C) 2017 by Harald Welte <laforge@gnumonks.org>
*
* 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 <stdint.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/talloc.h>
#include <osmocom/core/application.h>
#include <osmo-bts/gsm_data.h>
#include <osmo-bts/bts.h>
#include <osmo-bts/logging.h>
#include <osmo-bts/tx_power.h>
static const struct trx_power_params tpp_1002 = {
.trx_p_max_out_mdBm = to_mdB(23),
.p_total_tgt_mdBm = to_mdB(23),
.p_total_cur_mdBm = 0,
.thermal_attenuation_mdB = 0,
.user_gain_mdB = 0,
.pa = {
.nominal_gain_mdB = 0,
},
.user_pa = {
.nominal_gain_mdB = 0,
},
.ramp = {
.step_size_mdB = to_mdB(2),
.step_interval_sec = 1,
},
};
static const struct trx_power_params tpp_1020 = {
.trx_p_max_out_mdBm = to_mdB(23),
.p_total_tgt_mdBm = to_mdB(33),
.p_total_cur_mdBm = 0,
.thermal_attenuation_mdB = 0,
.user_gain_mdB = 0,
.pa = {
.nominal_gain_mdB = to_mdB(10),
},
.user_pa = {
.nominal_gain_mdB = 0,
},
.ramp = {
.step_size_mdB = to_mdB(2),
.step_interval_sec = 1,
},
};
static const struct trx_power_params tpp_1100 = {
.trx_p_max_out_mdBm = to_mdB(23),
.p_total_tgt_mdBm = to_mdB(40),
.p_total_cur_mdBm = 0,
.thermal_attenuation_mdB = 0,
.user_gain_mdB = 0,
.pa = {
.nominal_gain_mdB = to_mdB(17),
},
.user_pa = {
.nominal_gain_mdB = 0,
},
.ramp = {
.step_size_mdB = to_mdB(2),
.step_interval_sec = 1,
},
};
static const struct trx_power_params tpp_2050 = {
.trx_p_max_out_mdBm = to_mdB(37),
.p_total_tgt_mdBm = to_mdB(37),
.p_total_cur_mdBm = 0,
.thermal_attenuation_mdB = 0,
.user_gain_mdB = 0,
.pa = {
.nominal_gain_mdB = 0,
},
.user_pa = {
.nominal_gain_mdB = 0,
},
.ramp = {
.step_size_mdB = to_mdB(2),
.step_interval_sec = 1,
},
};
static void test_sbts1002(struct gsm_bts_trx *trx)
{
printf("Testing tx_power calculation for sysmoBTS 1002\n");
trx->power_params = tpp_1002;
trx->max_power_red = 0;
OSMO_ASSERT(get_p_max_out_mdBm(trx) == to_mdB(23));
/* at max_power_red = 0, we expect full 23dBm */
OSMO_ASSERT(get_p_nominal_mdBm(trx) == to_mdB(23));
trx->max_power_red = 2;
/* at max_power_red = 2, we expect 21dBm */
OSMO_ASSERT(get_p_nominal_mdBm(trx) == to_mdB(21));
/* at 1 step (of 2dB), we expect full 23-2-2=19 dBm */
OSMO_ASSERT(get_p_target_mdBm(trx, 1) == to_mdB(19));
/* at 2 steps (= 4dB), we expect 23-2-4=17*/
OSMO_ASSERT(get_p_trxout_target_mdBm(trx, 2) == to_mdB(17));
}
static void test_sbts1020(struct gsm_bts_trx *trx)
{
printf("Testing tx_power calculation for sysmoBTS 1020\n");
trx->power_params = tpp_1020;
trx->max_power_red = 0;
OSMO_ASSERT(get_p_max_out_mdBm(trx) == to_mdB(33));
/* at max_power_red = 0, we expect full 33dBm */
OSMO_ASSERT(get_p_nominal_mdBm(trx) == to_mdB(33));
trx->max_power_red = 2;
/* at max_power_red = 2, we expect 31dBm */
OSMO_ASSERT(get_p_nominal_mdBm(trx) == to_mdB(31));
/* at 1 step (of 2dB), we expect full 33-2-2=29 dBm */
OSMO_ASSERT(get_p_target_mdBm(trx, 1) == to_mdB(29));
/* at 2 steps (= 4dB), we expect 33-2-4-10=17*/
OSMO_ASSERT(get_p_trxout_target_mdBm(trx, 2) == to_mdB(17));
}
static void test_sbts1100(struct gsm_bts_trx *trx)
{
printf("Testing tx_power calculation for sysmoBTS 1100\n");
trx->power_params = tpp_1100;
trx->max_power_red = 0;
OSMO_ASSERT(get_p_max_out_mdBm(trx) == to_mdB(40));
/* at max_power_red = 0, we expect full 33dBm */
OSMO_ASSERT(get_p_nominal_mdBm(trx) == to_mdB(40));
trx->max_power_red = 2;
/* at max_power_red = 2, we expect 38dBm */
OSMO_ASSERT(get_p_nominal_mdBm(trx) == to_mdB(38));
/* at 1 step (of 2dB), we expect full 40-2-2=36 dBm */
OSMO_ASSERT(get_p_target_mdBm(trx, 1) == to_mdB(36));
/* at 2 steps (= 4dB), we expect 40-2-4-17=17*/
OSMO_ASSERT(get_p_trxout_target_mdBm(trx, 2) == to_mdB(17));
}
static void test_sbts2050(struct gsm_bts_trx *trx)
{
printf("Testing tx_power calculation for sysmoBTS 2050\n");
trx->power_params = tpp_2050;
trx->max_power_red = 0;
OSMO_ASSERT(get_p_max_out_mdBm(trx) == to_mdB(37));
/* at max_power_red = 0, we expect full 37dBm */
OSMO_ASSERT(get_p_nominal_mdBm(trx) == to_mdB(37));
trx->max_power_red = 2;
/* at max_power_red = 2, we expect 35dBm */
OSMO_ASSERT(get_p_nominal_mdBm(trx) == to_mdB(35));
/* at 1 step (of 2dB), we expect full 37-2-2=33 dBm */
OSMO_ASSERT(get_p_target_mdBm(trx, 1) == to_mdB(33));
/* at 2 steps (= 4dB), we expect 37-2-4=31dBm */
OSMO_ASSERT(get_p_trxout_target_mdBm(trx, 2) == to_mdB(31));
}
int bts_model_change_power(struct gsm_bts_trx *trx, int p_trxout_mdBm)
{
struct trx_power_params *tpp = &trx->power_params;
printf("CHANGE_POWER(%d)\n", p_trxout_mdBm);
if (tpp->ramp.attenuation_mdB == 0)
exit(0);
power_trx_change_compl(trx, p_trxout_mdBm);
return 0;
}
static void test_power_ramp(struct gsm_bts_trx *trx, int dBm)
{
printf("Testing tx_power ramping for sysmoBTS 1020\n");
trx->power_params = tpp_1020;
trx->max_power_red = 0;
power_ramp_start(trx, to_mdB(dBm), 0);
}
int main(int argc, char **argv)
{
static struct gsm_bts *bts;
struct gsm_bts_trx *trx;
void *tall_bts_ctx;
tall_bts_ctx = talloc_named_const(NULL, 1, "OsmoBTS context");
msgb_talloc_ctx_init(tall_bts_ctx, 0);
bts_log_init(NULL);
osmo_stderr_target->categories[DL1C].loglevel = LOGL_DEBUG;
log_set_print_filename(osmo_stderr_target, 0);
bts = gsm_bts_alloc(tall_bts_ctx);
if (!bts) {
fprintf(stderr, "Failed to create BTS structure\n");
exit(1);
}
trx = gsm_bts_trx_alloc(bts);
if (!trx) {
fprintf(stderr, "Failed to TRX structure\n");
exit(1);
}
if (bts_init(bts) < 0) {
fprintf(stderr, "unable to to open bts\n");
exit(1);
}
test_sbts1002(trx);
test_sbts1020(trx);
test_sbts1100(trx);
test_sbts2050(trx);
/* test error case / excess power (40 dBm is too much) */
test_power_ramp(trx, 40);
/* test actaul ramping to full 33 dBm */
test_power_ramp(trx, 33);
while (1) {
osmo_select_main(0);
}
}

38
tests/tx_power/tx_power_test.err Normal file
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@ -0,0 +1,38 @@
power_ramp_start(cur=0, tgt=40000)
Asked to ramp power up to 40000 mdBm, which exceeds P_max_out (33000)
power_ramp_start(cur=0, tgt=33000)
ramp_timer_cb(cur_pout=2000, tgt_pout=33000, ramp_att=31000, therm_att=0, user_gain=0)
ramping TRX board output power to -8000 mdBm.
ramp_timer_cb(cur_pout=4000, tgt_pout=33000, ramp_att=29000, therm_att=0, user_gain=0)
ramping TRX board output power to -6000 mdBm.
ramp_timer_cb(cur_pout=6000, tgt_pout=33000, ramp_att=27000, therm_att=0, user_gain=0)
ramping TRX board output power to -4000 mdBm.
ramp_timer_cb(cur_pout=8000, tgt_pout=33000, ramp_att=25000, therm_att=0, user_gain=0)
ramping TRX board output power to -2000 mdBm.
ramp_timer_cb(cur_pout=10000, tgt_pout=33000, ramp_att=23000, therm_att=0, user_gain=0)
ramping TRX board output power to 0 mdBm.
ramp_timer_cb(cur_pout=12000, tgt_pout=33000, ramp_att=21000, therm_att=0, user_gain=0)
ramping TRX board output power to 2000 mdBm.
ramp_timer_cb(cur_pout=14000, tgt_pout=33000, ramp_att=19000, therm_att=0, user_gain=0)
ramping TRX board output power to 4000 mdBm.
ramp_timer_cb(cur_pout=16000, tgt_pout=33000, ramp_att=17000, therm_att=0, user_gain=0)
ramping TRX board output power to 6000 mdBm.
ramp_timer_cb(cur_pout=18000, tgt_pout=33000, ramp_att=15000, therm_att=0, user_gain=0)
ramping TRX board output power to 8000 mdBm.
ramp_timer_cb(cur_pout=20000, tgt_pout=33000, ramp_att=13000, therm_att=0, user_gain=0)
ramping TRX board output power to 10000 mdBm.
ramp_timer_cb(cur_pout=22000, tgt_pout=33000, ramp_att=11000, therm_att=0, user_gain=0)
ramping TRX board output power to 12000 mdBm.
ramp_timer_cb(cur_pout=24000, tgt_pout=33000, ramp_att=9000, therm_att=0, user_gain=0)
ramping TRX board output power to 14000 mdBm.
ramp_timer_cb(cur_pout=26000, tgt_pout=33000, ramp_att=7000, therm_att=0, user_gain=0)
ramping TRX board output power to 16000 mdBm.
ramp_timer_cb(cur_pout=28000, tgt_pout=33000, ramp_att=5000, therm_att=0, user_gain=0)
ramping TRX board output power to 18000 mdBm.
ramp_timer_cb(cur_pout=30000, tgt_pout=33000, ramp_att=3000, therm_att=0, user_gain=0)
ramping TRX board output power to 20000 mdBm.
ramp_timer_cb(cur_pout=32000, tgt_pout=33000, ramp_att=1000, therm_att=0, user_gain=0)
ramping TRX board output power to 22000 mdBm.
ramp_timer_cb(cur_pout=33000, tgt_pout=33000, ramp_att=0, therm_att=0, user_gain=0)
ramping TRX board output power to 23000 mdBm.


23
tests/tx_power/tx_power_test.ok Normal file
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@ -0,0 +1,23 @@
Testing tx_power calculation for sysmoBTS 1002
Testing tx_power calculation for sysmoBTS 1020
Testing tx_power calculation for sysmoBTS 1100
Testing tx_power calculation for sysmoBTS 2050
Testing tx_power ramping for sysmoBTS 1020
Testing tx_power ramping for sysmoBTS 1020
CHANGE_POWER(-8000)
CHANGE_POWER(-6000)
CHANGE_POWER(-4000)
CHANGE_POWER(-2000)
CHANGE_POWER(0)
CHANGE_POWER(2000)
CHANGE_POWER(4000)
CHANGE_POWER(6000)
CHANGE_POWER(8000)
CHANGE_POWER(10000)
CHANGE_POWER(12000)
CHANGE_POWER(14000)
CHANGE_POWER(16000)
CHANGE_POWER(18000)
CHANGE_POWER(20000)
CHANGE_POWER(22000)
CHANGE_POWER(23000)