osmocore_HEADERS = signal.h linuxlist.h timer.h talloc.h msgb.h select.h \
tlv.h bitvec.h comp128.h statistics.h gsm_utils.h utils.h \
- gsmtap.h write_queue.h rsl.h gsm48.h
+ gsmtap.h write_queue.h rsl.h gsm48.h rxlev_stat.h
osmocoredir = $(includedir)/osmocore
};
/* check if the bit is 0 or 1 for a given position inside a bitvec */
-enum bit_value bitvec_get_bit_pos(struct bitvec *bv, unsigned int bitnr);
+enum bit_value bitvec_get_bit_pos(const struct bitvec *bv, unsigned int bitnr);
/* get the Nth set bit inside the bit vector */
-unsigned int bitvec_get_nth_set_bit(struct bitvec *bv, unsigned int n);
+unsigned int bitvec_get_nth_set_bit(const struct bitvec *bv, unsigned int n);
/* Set a bit at given position */
int bitvec_set_bit_pos(struct bitvec *bv, unsigned int bitnum,
#include <stdint.h>
+struct gsm_time {
+ uint32_t fn; /* FN count */
+ uint16_t t1; /* FN div (26*51) */
+ uint8_t t2; /* FN modulo 26 */
+ uint8_t t3; /* FN modulo 51 */
+ uint8_t tc;
+};
+
enum gsm_band {
GSM_BAND_850 = 1,
GSM_BAND_900 = 2,
return tbl[raw & 3];
}
+#define ARFCN_PCS 0x8000
+#define ARFCN_UPLINK 0x4000
+
+enum gsm_band gsm_arfcn2band(uint16_t arfcn);
+
+/* Convert an ARFCN to the frequency in MHz * 10 */
+uint16_t gsm_arfcn2freq10(uint16_t arfcn, int uplink);
+
+/* Convert from frame number to GSM time */
+void gsm_fn2gsmtime(struct gsm_time *time, uint32_t fn);
+
+/* Convert from GSM time to frame number */
+uint32_t gsm_gsmtime2fn(struct gsm_time *time);
+
void generate_backtrace();
#endif
#define GSMTAP_CHANNEL_TCH_H 0x0a
#define GSMTAP_CHANNEL_ACCH 0x80
+#define GSMTAP_ARFCN_F_PCS 0x8000
+#define GSMTAP_ARFCN_F_UPLINK 0x4000
+#define GSMTAP_ARFCN_MASK 0x3fff
+
#define GSMTAP_UDP_PORT 4729
struct gsmtap_hdr {
NM_IPAC_EIE_CHAN_USE_LIST = 0x04,
NM_IPAC_EIE_BCCH_INFO_TYPE = 0x05,
NM_IPAC_EIE_BCCH_INFO = 0x06,
+ NM_IPAC_EIE_CONFIG = 0x07,
+ NM_IPAC_EIE_RES_DETAILS = 0x08,
+ NM_IPAC_EIE_RXLEV_THRESH = 0x09,
+ NM_IPAC_EIE_FREQ_SYNC_OPTS = 0x0a,
+ NM_IPAC_EIE_MAC_ADDR = 0x0b,
+ NM_IPAC_EIE_HW_SW_COMPAT_NR = 0x0c,
+ NM_IPAC_EIE_MANUF_SER_NR = 0x0d,
+ NM_IPAC_EIE_OEM_ID = 0x0e,
+ NM_IPAC_EIE_DATE_TIME_MANUF = 0x0f,
+ NM_IPAC_EIE_DATE_TIME_CALIB = 0x10,
+ NM_IPAC_EIE_BEACON_INFO = 0x11,
+ NM_IPAC_EIE_FREQ_ERR = 0x12,
/* FIXME */
+ NM_IPAC_EIE_FREQ_BANDS = 0x1c,
+ NM_IPAC_EIE_MAX_TA = 0x1d,
+ NM_IPAC_EIE_CIPH_ALGOS = 0x1e,
+ NM_IPAC_EIE_CHAN_TYPES = 0x1f,
+ NM_IPAC_EIE_CHAN_MODES = 0x20,
+ NM_IPAC_EIE_GPRS_CODING = 0x21,
+ NM_IPAC_EIE_RTP_FEATURES = 0x22,
+ NM_IPAC_EIE_RSL_FEATURES = 0x23,
+ NM_IPAC_EIE_BTS_HW_CLASS = 0x24,
+ NM_IPAC_EIE_BTS_ID = 0x25,
};
enum ipac_bcch_info_type {
--- /dev/null
+#ifndef _OSMOCORE_RXLEV_STATS_H
+#define _OSMOCORE_RXLEV_STATS_H
+
+#define NUM_RXLEVS 32
+#define NUM_ARFCNS 1024
+
+struct rxlev_stats {
+ /* the maximum number of ARFCN's is 1024, and there are 32 RxLevels,
+ * so in we keep one 1024bit-bitvec for each RxLev */
+ uint8_t rxlev_buckets[NUM_RXLEVS][NUM_ARFCNS/8];
+};
+
+void rxlev_stat_input(struct rxlev_stats *st, uint16_t arfcn, uint8_t rxlev);
+
+/* 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);
+
+void rxlev_stat_reset(struct rxlev_stats *st);
+
+void rxlev_stat_dump(const struct rxlev_stats *st);
+
+#endif /* _OSMOCORE_RXLEV_STATS_H */
libosmocore_la_SOURCES = msgb.c timer.c talloc.c select.c signal.c \
tlv_parser.c bitvec.c comp128.c gsm_utils.c statistics.c \
- write_queue.c utils.c rsl.c gsm48.c
+ write_queue.c utils.c rsl.c gsm48.c rxlev_stat.c
}
/* check if the bit is 0 or 1 for a given position inside a bitvec */
-enum bit_value bitvec_get_bit_pos(struct bitvec *bv, unsigned int bitnr)
+enum bit_value bitvec_get_bit_pos(const struct bitvec *bv, unsigned int bitnr)
{
unsigned int bytenum = bytenum_from_bitnum(bitnr);
unsigned int bitnum = 7 - (bitnr % 8);
}
/* get the Nth set bit inside the bit vector */
-unsigned int bitvec_get_nth_set_bit(struct bitvec *bv, unsigned int n)
+unsigned int bitvec_get_nth_set_bit(const struct bitvec *bv, unsigned int n)
{
unsigned int i, k = 0;
/*
* (C) 2008 by Daniel Willmann <daniel@totalueberwachung.de>
* (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
- * (C) 2009 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2009-2010 by Harald Welte <laforge@gnumonks.org>
*
* All Rights Reserved
*
free(strings);
}
#endif
+
+enum gsm_band gsm_arfcn2band(uint16_t arfcn)
+{
+ if (arfcn & ARFCN_PCS)
+ return GSM_BAND_1900;
+ else if (arfcn <= 124)
+ return GSM_BAND_900;
+ else if (arfcn >= 955 && arfcn <= 1023)
+ return GSM_BAND_900;
+ else if (arfcn >= 128 && arfcn <= 251)
+ return GSM_BAND_850;
+ else if (arfcn >= 512 && arfcn <= 885)
+ return GSM_BAND_1800;
+ else if (arfcn >= 259 && arfcn <= 293)
+ return GSM_BAND_450;
+ else if (arfcn >= 306 && arfcn <= 340)
+ return GSM_BAND_480;
+ else if (arfcn >= 350 && arfcn <= 425)
+ return GSM_BAND_810;
+ else if (arfcn >= 438 && arfcn <= 511)
+ return GSM_BAND_750;
+ else
+ return GSM_BAND_1800;
+}
+
+/* Convert an ARFCN to the frequency in MHz * 10 */
+uint16_t gsm_arfcn2freq10(uint16_t arfcn, int uplink)
+{
+ uint16_t freq10_ul;
+ uint16_t freq10_dl;
+
+ if (arfcn & ARFCN_PCS) {
+ /* DCS 1900 */
+ arfcn &= ~ARFCN_PCS;
+ freq10_ul = 18502 + 2 * (arfcn-512);
+ freq10_dl = freq10_ul + 800;
+ } else if (arfcn <= 124) {
+ /* Primary GSM + ARFCN 0 of E-GSM */
+ freq10_ul = 8900 + 2 * arfcn;
+ freq10_dl = freq10_ul + 450;
+ } else if (arfcn >= 955 && arfcn <= 1023) {
+ /* E-GSM and R-GSM */
+ freq10_ul = 8900 + 2 * (arfcn - 1024);
+ freq10_dl = freq10_ul + 450;
+ } else if (arfcn >= 128 && arfcn <= 251) {
+ /* GSM 850 */
+ freq10_ul = 8242 + 2 * (arfcn - 128);
+ freq10_dl = freq10_ul + 450;
+ } else if (arfcn >= 512 && arfcn <= 885) {
+ /* DCS 1800 */
+ freq10_ul = 17102 + 2 * (arfcn - 512);
+ freq10_dl = freq10_ul + 950;
+ } else if (arfcn >= 259 && arfcn <= 293) {
+ /* GSM 450 */
+ freq10_ul = 4506 + 2 * (arfcn - 259);
+ freq10_dl = freq10_ul + 100;
+ } else if (arfcn >= 306 && arfcn <= 340) {
+ /* GSM 480 */
+ freq10_ul = 4790 + 2 * (arfcn - 306);
+ freq10_dl = freq10_ul + 100;
+ } else if (arfcn >= 350 && arfcn <= 425) {
+ /* GSM 810 */
+ freq10_ul = 8060 + 2 * (arfcn - 350);
+ freq10_dl = freq10_ul + 450;
+ } else if (arfcn >= 438 && arfcn <= 511) {
+ /* GSM 750 */
+ freq10_ul = 7472 + 2 * (arfcn - 438);
+ freq10_dl = freq10_ul + 300;
+ } else
+ return 0xffff;
+
+ if (uplink)
+ return freq10_ul;
+ else
+ return freq10_dl;
+}
+
+void gsm_fn2gsmtime(struct gsm_time *time, uint32_t fn)
+{
+ time->fn = fn;
+ time->t1 = time->fn / (26*51);
+ time->t2 = time->fn % 26;
+ time->t3 = time->fn % 51;
+ time->tc = (time->fn / 51) % 8;
+}
+
+uint32_t gsm_gsmtime2fn(struct gsm_time *time)
+{
+ /* TS 05.02 Chapter 4.3.3 TDMA frame number */
+ return (51 * ((time->t3 - time->t2 + 26) % 26) + time->t3 + (26 * 51 * time->t1));
+}
--- /dev/null
+/* 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");
+ }
+}
projects / osmocom-bb.git / commitdiff