mirror of https://gerrit.osmocom.org/libosmocore
95 lines
2.2 KiB
C
95 lines
2.2 KiB
C
/* Rx Level statistics */
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/* (C) 2010 by Harald Welte <laforge@gnumonks.org>
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*
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <unistd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <stdint.h>
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#include <osmocore/bitvec.h>
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#include <osmocore/rxlev_stat.h>
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int bitvec_find_bit_pos(const struct bitvec *bv, unsigned int n, enum bit_value val)
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{
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unsigned int i;
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for (i = n; i < bv->data_len*8; i++) {
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if (bitvec_get_bit_pos(bv, i) == val)
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return i;
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}
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return -1;
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}
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void rxlev_stat_input(struct rxlev_stats *st, uint16_t arfcn, uint8_t rxlev)
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{
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struct bitvec bv;
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if (rxlev >= NUM_RXLEVS)
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rxlev = NUM_RXLEVS-1;
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bv.data_len = NUM_ARFCNS/8;
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bv.data = st->rxlev_buckets[rxlev];
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bitvec_set_bit_pos(&bv, arfcn, ONE);
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}
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/* get the next ARFCN that has the specified Rxlev */
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int16_t rxlev_stat_get_next(const struct rxlev_stats *st, uint8_t rxlev, int16_t arfcn)
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{
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struct bitvec bv;
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if (rxlev >= NUM_RXLEVS)
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rxlev = NUM_RXLEVS-1;
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bv.data_len = NUM_ARFCNS/8;
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if (arfcn < 0)
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arfcn = -1;
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bv.data = (uint8_t *) st->rxlev_buckets[rxlev];
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return bitvec_find_bit_pos(&bv, arfcn+1, ONE);
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}
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void rxlev_stat_reset(struct rxlev_stats *st)
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{
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memset(st, 0, sizeof(*st));
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}
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void rxlev_stat_dump(const struct rxlev_stats *st)
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{
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int i;
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for (i = NUM_RXLEVS-1; i >= 0; i--) {
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int16_t arfcn = -1;
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printf("ARFCN with RxLev %u: ", i);
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while ((arfcn = rxlev_stat_get_next(st, i, arfcn)) >= 0) {
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printf("%u ", arfcn);
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}
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printf("\n");
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}
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}
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