diff options
author | Yves Godin <support@nuranwireless.com> | 2015-11-12 08:32:07 -0500 |
---|---|---|
committer | Harald Welte <laforge@gnumonks.org> | 2016-02-15 14:26:33 +0100 |
commit | 2a711887b7e91893555891e5c033189d6705eec3 (patch) | |
tree | 00abee90a3e8d04f01f34df54f7d7f1c3494fd50 /src/osmo-bts-litecell15/main.c | |
parent | 5a945dad0cb34dc351427b33a3ce0ed9dd0e394f (diff) |
LC15: Add initial support for the NuRAN Wireless Litecell 1.5
This commit adds basic support for the Litecell 1.5. Multi-TRX is not
supported yet. Instead, multiple instances of the BTS can be launched
using command line parameter -n <HW_TRX_NR> to specify if TRX 1 or
2 must be used by the bts. Note that only TRX 1 opens a connection to
the PCU. Full support for GPRS on both TRX will come at the same time
than the multi-TRX support.
The BTS manager has been adapted to match the new hardware but otherwise
it has not been improved or changed compared to the one used on the
SuperFemto/Litecell (sysmobts).
Diffstat (limited to 'src/osmo-bts-litecell15/main.c')
-rw-r--r-- | src/osmo-bts-litecell15/main.c | 431 |
1 files changed, 431 insertions, 0 deletions
diff --git a/src/osmo-bts-litecell15/main.c b/src/osmo-bts-litecell15/main.c new file mode 100644 index 00000000..f3b1ea4c --- /dev/null +++ b/src/osmo-bts-litecell15/main.c @@ -0,0 +1,431 @@ +/* Main program for NuRAN Wireless Litecell 1.5 BTS */ + +/* Copyright (C) 2015 by Yves Godin <support@nuranwireless.com> + * + * Based on sysmoBTS: + * (C) 2011-2013 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 <unistd.h> +#include <stdlib.h> +#include <errno.h> +#include <getopt.h> +#include <limits.h> +#include <sys/signal.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sched.h> + +#include <netinet/in.h> +#include <arpa/inet.h> + +#include <osmocom/core/talloc.h> +#include <osmocom/core/application.h> +#include <osmocom/vty/telnet_interface.h> +#include <osmocom/vty/logging.h> +#include <osmocom/vty/ports.h> +#include <osmocom/core/gsmtap_util.h> +#include <osmocom/core/gsmtap.h> + +#include <osmo-bts/gsm_data.h> +#include <osmo-bts/logging.h> +#include <osmo-bts/abis.h> +#include <osmo-bts/bts.h> +#include <osmo-bts/vty.h> +#include <osmo-bts/bts_model.h> +#include <osmo-bts/pcu_if.h> +#include <osmo-bts/control_if.h> +#include <osmo-bts/l1sap.h> + +/*NTQD: Change how rx_nr is handle in multi-trx*/ +#define LC15BTS_RF_LOCK_PATH(NR) ((((NR))==1) ? "/var/lock/bts_rf_lock1" : "/var/lock/bts_rf_lock2") +#define LC15BTS_PID_FILE(NR) ((((NR))==1) ? "osmo-bts1" : "osmo-bts2") + +#include "utils.h" +#include "l1_if.h" +#include "hw_misc.h" +#include "oml_router.h" +#include "misc/lc15bts_bid.h" + +int pcu_direct = 0; + +static const char *config_file = "lc15bts.cfg"; +static int daemonize = 0; +static unsigned int dsp_trace = 0x71c00020; +static int rt_prio = -1; +static char *gsmtap_ip = 0; +static int trx_nr = 1; + +int bts_model_init(struct gsm_bts *bts) +{ + struct lc15l1_hdl *fl1h; + int rc; + + fl1h = l1if_open(bts->c0, trx_nr); + if (!fl1h) { + LOGP(DL1C, LOGL_FATAL, "Cannot open L1 Interface\n"); + return -EIO; + } + fl1h->dsp_trace_f = dsp_trace; + + bts->c0->role_bts.l1h = fl1h; + + rc = lc15bts_get_nominal_power(bts->c0); + if (rc < 0) { + LOGP(DL1C, LOGL_NOTICE, "Cannot determine nominal " + "transmit power. Assuming 37dBm.\n"); + rc = 37; + } + bts->c0->nominal_power = rc; + bts->c0->power_params.trx_p_max_out_mdBm = to_mdB(rc); + + bts_model_vty_init(bts); + + return 0; +} + +int bts_model_oml_estab(struct gsm_bts *bts) +{ + struct lc15l1_hdl *fl1h = bts->c0->role_bts.l1h; + + l1if_reset(fl1h); + + return 0; +} + +void bts_update_status(enum bts_global_status which, int on) +{ + static uint64_t states = 0; + uint64_t old_states = states; + int led_rf_active_on; + + if (on) + states |= (1ULL << which); + else + states &= ~(1ULL << which); + + led_rf_active_on = + (states & (1ULL << BTS_STATUS_RF_ACTIVE)) && + !(states & (1ULL << BTS_STATUS_RF_MUTE)); + + LOGP(DL1C, LOGL_INFO, + "Set global status #%d to %d (%04llx -> %04llx), LEDs: ACT %d\n", + which, on, + (long long)old_states, (long long)states, + led_rf_active_on); + + lc15bts_led_set(led_rf_active_on ? LED_GREEN : LED_OFF); +} + +static void print_help() +{ + printf( "Some useful options:\n" + " -h --help this text\n" + " -d --debug MASK Enable debugging (e.g. -d DRSL:DOML:DLAPDM)\n" + " -D --daemonize For the process into a background daemon\n" + " -c --config-file Specify the filename of the config file\n" + " -s --disable-color Don't use colors in stderr log output\n" + " -T --timestamp Prefix every log line with a timestamp\n" + " -V --version Print version information and exit\n" + " -e --log-level Set a global log-level\n" + " -p --dsp-trace Set DSP trace flags\n" + " -r --realtime PRIO Use SCHED_RR with the specified priority\n" + " -w --hw-version Print the targeted HW Version\n" + " -M --pcu-direct Force PCU to access message queue for " + "PDCH dchannel directly\n" + " -i --gsmtap-ip The destination IP used for GSMTAP.\n" + " -n --hw-trx-nr Hardware TRX number <1-2>\n" + ); +} + +static void print_hwversion() +{ + int rev; + int model; + static char model_name[64] = {0, }; + + snprintf(model_name, sizeof(model_name), "NuRAN Litecell 1.5 BTS"); + + rev = lc15bts_rev_get(); + if (rev >= 0) { + snprintf(model_name, sizeof(model_name), "%s Rev %c", + model_name, (char)rev); + } + + model = lc15bts_model_get(); + if (model >= 0) { + snprintf(model_name, sizeof(model_name), "%s (%05X)", + model_name, model); + } + + printf(model_name); +} + +/* FIXME: finally get some option parsing code into libosmocore */ +static void handle_options(int argc, char **argv) +{ + while (1) { + int option_idx = 0, c; + static const struct option long_options[] = { + /* FIXME: all those are generic Osmocom app options */ + { "help", 0, 0, 'h' }, + { "debug", 1, 0, 'd' }, + { "daemonize", 0, 0, 'D' }, + { "config-file", 1, 0, 'c' }, + { "disable-color", 0, 0, 's' }, + { "timestamp", 0, 0, 'T' }, + { "version", 0, 0, 'V' }, + { "log-level", 1, 0, 'e' }, + { "dsp-trace", 1, 0, 'p' }, + { "hw-version", 0, 0, 'w' }, + { "pcu-direct", 0, 0, 'M' }, + { "realtime", 1, 0, 'r' }, + { "gsmtap-ip", 1, 0, 'i' }, + { "hw-trx-nr", 1, 0, 'n' }, + { 0, 0, 0, 0 } + }; + + c = getopt_long(argc, argv, "hc:d:Dc:sTVe:p:w:Mr:n:", + long_options, &option_idx); + if (c == -1) + break; + + switch (c) { + case 'h': + print_help(); + exit(0); + break; + case 's': + log_set_use_color(osmo_stderr_target, 0); + break; + case 'd': + log_parse_category_mask(osmo_stderr_target, optarg); + break; + case 'D': + daemonize = 1; + break; + case 'c': + config_file = optarg; + break; + case 'T': + log_set_print_timestamp(osmo_stderr_target, 1); + break; + case 'M': + pcu_direct = 1; + break; + case 'V': + print_version(1); + exit(0); + break; + case 'e': + log_set_log_level(osmo_stderr_target, atoi(optarg)); + break; + case 'p': + dsp_trace = strtoul(optarg, NULL, 16); + break; + case 'w': + print_hwversion(); + exit(0); + break; + case 'r': + rt_prio = atoi(optarg); + break; + case 'i': + gsmtap_ip = optarg; + break; + case 'n': + trx_nr = atoi(optarg); + break; + default: + break; + } + } +} + +static struct gsm_bts *bts; + +static void signal_handler(int signal) +{ + fprintf(stderr, "signal %u received\n", signal); + + switch (signal) { + case SIGINT: + //osmo_signal_dispatch(SS_GLOBAL, S_GLOBAL_SHUTDOWN, NULL); + bts_shutdown(bts, "SIGINT"); + break; + case SIGABRT: + case SIGUSR1: + case SIGUSR2: + talloc_report_full(tall_bts_ctx, stderr); + break; + default: + break; + } +} + +static int write_pid_file(char *procname) +{ + FILE *outf; + char tmp[PATH_MAX+1]; + + snprintf(tmp, sizeof(tmp)-1, "/var/run/%s.pid", procname); + tmp[PATH_MAX-1] = '\0'; + + outf = fopen(tmp, "w"); + if (!outf) + return -1; + + fprintf(outf, "%d\n", getpid()); + + fclose(outf); + + return 0; +} + +extern int lc15bts_ctrlif_inst_cmds(void); + +int main(int argc, char **argv) +{ + struct stat st; + struct sched_param param; + struct gsm_bts_role_bts *btsb; + struct e1inp_line *line; + void *tall_msgb_ctx; + struct osmo_fd accept_fd, read_fd; + int vty_port; + int rc; + + + tall_bts_ctx = talloc_named_const(NULL, 1, "lc15BTS context"); + tall_msgb_ctx = talloc_named_const(tall_bts_ctx, 1, "msgb"); + msgb_set_talloc_ctx(tall_msgb_ctx); + + bts_log_init(NULL); + + bts = gsm_bts_alloc(tall_bts_ctx); + vty_init(&bts_vty_info); + e1inp_vty_init(); + bts_vty_init(bts, &bts_log_info); + + handle_options(argc, argv); + + /* enable realtime priority for us */ + if (rt_prio != -1) { + memset(¶m, 0, sizeof(param)); + param.sched_priority = rt_prio; + rc = sched_setscheduler(getpid(), SCHED_RR, ¶m); + if (rc != 0) { + fprintf(stderr, "Setting SCHED_RR priority(%d) failed: %s\n", + param.sched_priority, strerror(errno)); + exit(1); + } + } + + if (gsmtap_ip) { + gsmtap = gsmtap_source_init(gsmtap_ip, GSMTAP_UDP_PORT, 1); + if (!gsmtap) { + fprintf(stderr, "Failed during gsmtap_init()\n"); + exit(1); + } + gsmtap_source_add_sink(gsmtap); + } + + if (bts_init(bts) < 0) { + fprintf(stderr, "unable to open bts\n"); + exit(1); + } + btsb = bts_role_bts(bts); + btsb->support.ciphers = CIPHER_A5(1) | CIPHER_A5(2) | CIPHER_A5(3); + + abis_init(bts); + + rc = vty_read_config_file(config_file, NULL); + if (rc < 0) { + fprintf(stderr, "Failed to parse the config file: '%s'\n", + config_file); + exit(1); + } + + if (stat(LC15BTS_RF_LOCK_PATH(trx_nr), &st) == 0) { + LOGP(DL1C, LOGL_NOTICE, "Not starting BTS due to RF_LOCK file present\n"); + exit(23); + } + write_pid_file(LC15BTS_PID_FILE(trx_nr)); + + bts_controlif_setup(bts); + + vty_port = (trx_nr == 1) ? OSMO_VTY_PORT_BTS : (OSMO_VTY_PORT_BTS + 1000); + rc = telnet_init(tall_bts_ctx, NULL, vty_port); + if (rc < 0) { + fprintf(stderr, "Error initializing telnet\n"); + exit(1); + } + + /* NTQD: For testing, we only support PCU on the first TRX */ + if (trx_nr == 1) { + if (pcu_sock_init()) { + fprintf(stderr, "PCU L1 socket failed\n"); + exit(1); + } + } + + signal(SIGINT, &signal_handler); + //signal(SIGABRT, &signal_handler); + signal(SIGUSR1, &signal_handler); + signal(SIGUSR2, &signal_handler); + osmo_init_ignore_signals(); + + rc = oml_router_init(bts, OML_ROUTER_PATH, &accept_fd, &read_fd); + if (rc < 0) { + fprintf(stderr, "Error creating the OML router: %s rc=%d\n", + OML_ROUTER_PATH, rc); + exit(1); + } + + if (!btsb->bsc_oml_host) { + fprintf(stderr, "Cannot start BTS without knowing BSC OML IP\n"); + exit(1); + } + + line = abis_open(bts, btsb->bsc_oml_host, "lc15BTS"); + if (!line) { + fprintf(stderr, "unable to connect to BSC\n"); + exit(2); + } + + if (daemonize) { + rc = osmo_daemonize(); + if (rc < 0) { + perror("Error during daemonize"); + exit(1); + } + } + + while (1) { + log_reset_context(); + osmo_select_main(0); + } +} + +void bts_model_abis_close(struct gsm_bts *bts) +{ + /* for now, we simply terminate the program and re-spawn */ + bts_shutdown(bts, "Abis close"); +} |