| /* Rx Level statistics */ |
| |
| /* (C) 2010 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 General Public License as published by |
| * the Free Software Foundation; either version 2 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 General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| */ |
| |
| #include <unistd.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <stdint.h> |
| |
| #include <osmocore/bitvec.h> |
| #include <osmocore/rxlev_stat.h> |
| |
| int bitvec_find_bit_pos(const struct bitvec *bv, unsigned int n, enum bit_value val) |
| { |
| unsigned int i; |
| |
| for (i = n; i < bv->data_len*8; i++) { |
| if (bitvec_get_bit_pos(bv, i) == val) |
| return i; |
| } |
| |
| return -1; |
| } |
| |
| void rxlev_stat_input(struct rxlev_stats *st, uint16_t arfcn, uint8_t rxlev) |
| { |
| struct bitvec bv; |
| |
| if (rxlev >= NUM_RXLEVS) |
| rxlev = NUM_RXLEVS-1; |
| |
| bv.data_len = NUM_ARFCNS/8; |
| bv.data = st->rxlev_buckets[rxlev]; |
| |
| bitvec_set_bit_pos(&bv, arfcn, ONE); |
| } |
| |
| /* get the next ARFCN that has the specified Rxlev */ |
| int16_t rxlev_stat_get_next(const struct rxlev_stats *st, uint8_t rxlev, int16_t arfcn) |
| { |
| struct bitvec bv; |
| |
| if (rxlev >= NUM_RXLEVS) |
| rxlev = NUM_RXLEVS-1; |
| |
| bv.data_len = NUM_ARFCNS/8; |
| |
| if (arfcn < 0) |
| arfcn = -1; |
| |
| bv.data = st->rxlev_buckets[rxlev]; |
| |
| return bitvec_find_bit_pos(&bv, arfcn+1, ONE); |
| } |
| |
| void rxlev_stat_reset(struct rxlev_stats *st) |
| { |
| memset(st, 0, sizeof(*st)); |
| } |
| |
| void rxlev_stat_dump(const struct rxlev_stats *st) |
| { |
| int i; |
| |
| for (i = NUM_RXLEVS-1; i >= 0; i--) { |
| int16_t arfcn = -1; |
| |
| printf("ARFCN with RxLev %u: ", i); |
| while ((arfcn = rxlev_stat_get_next(st, i, arfcn)) >= 0) { |
| printf("%u ", arfcn); |
| } |
| printf("\n"); |
| } |
| } |