Some gemalto modems provide USB ethernet interfaces for data path. Implement gprs-context driver for such modems to send data via USB ethernet rather than fallback to PPP.
Signed-off-by: Sergey Matyukevich <[email protected]> --- Makefile.am | 3 +- drivers/gemaltomodem/gemaltomodem.c | 4 +- drivers/gemaltomodem/gemaltomodem.h | 3 + drivers/gemaltomodem/gprs-context.c | 280 ++++++++++++++++++++++++++++ 4 files changed, 288 insertions(+), 2 deletions(-) create mode 100644 drivers/gemaltomodem/gprs-context.c diff --git a/Makefile.am b/Makefile.am index fbb0eff4..67c3bcbf 100644 --- a/Makefile.am +++ b/Makefile.am @@ -482,7 +482,8 @@ builtin_sources += drivers/atmodem/atutil.h \ drivers/gemaltomodem/gemaltomodem.h \ drivers/gemaltomodem/gemaltomodem.c \ drivers/gemaltomodem/location-reporting.c \ - drivers/gemaltomodem/voicecall.c + drivers/gemaltomodem/voicecall.c \ + drivers/gemaltomodem/gprs-context.c builtin_modules += xmm7modem builtin_sources += drivers/atmodem/atutil.h \ diff --git a/drivers/gemaltomodem/gemaltomodem.c b/drivers/gemaltomodem/gemaltomodem.c index 4818ac66..4b20dd1b 100644 --- a/drivers/gemaltomodem/gemaltomodem.c +++ b/drivers/gemaltomodem/gemaltomodem.c @@ -36,6 +36,7 @@ static int gemaltomodem_init(void) { gemalto_location_reporting_init(); + gemalto_gprs_context_init(); gemalto_voicecall_init(); return 0; @@ -43,8 +44,9 @@ static int gemaltomodem_init(void) static void gemaltomodem_exit(void) { - gemalto_voicecall_exit(); gemalto_location_reporting_exit(); + gemalto_gprs_context_exit(); + gemalto_voicecall_exit(); } OFONO_PLUGIN_DEFINE(gemaltomodem, "Gemalto modem driver", VERSION, diff --git a/drivers/gemaltomodem/gemaltomodem.h b/drivers/gemaltomodem/gemaltomodem.h index 27b1460e..dc0d346b 100644 --- a/drivers/gemaltomodem/gemaltomodem.h +++ b/drivers/gemaltomodem/gemaltomodem.h @@ -27,3 +27,6 @@ extern void gemalto_location_reporting_exit(); extern void gemalto_voicecall_init(); extern void gemalto_voicecall_exit(); + +extern void gemalto_gprs_context_init(); +extern void gemalto_gprs_context_exit(); diff --git a/drivers/gemaltomodem/gprs-context.c b/drivers/gemaltomodem/gprs-context.c new file mode 100644 index 00000000..be3de537 --- /dev/null +++ b/drivers/gemaltomodem/gprs-context.c @@ -0,0 +1,280 @@ +/* + * + * oFono - Open Source Telephony + * + * Copyright (C) 2020 Sergey Matyukevich. 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 version 2 as + * published by the Free Software Foundation. + * + * 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 St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <string.h> +#include <stdlib.h> +#include <stdio.h> +#include <errno.h> +#include <sys/stat.h> + +#include <glib.h> + +#include <ofono/log.h> +#include <ofono/modem.h> +#include <ofono/gprs-context.h> + +#include "gatchat.h" +#include "gatresult.h" +#include "gattty.h" + +#include "gemaltomodem.h" + +static const char *none_prefix[] = { NULL }; + +struct gprs_context_data { + GAtChat *chat; + unsigned int active_context; + ofono_gprs_context_cb_t cb; + void *cb_data; +}; + +static void cgact_enable_cb(gboolean ok, GAtResult *result, + gpointer user_data) +{ + struct ofono_gprs_context *gc = user_data; + struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc); + struct ofono_modem *modem; + const char *interface; + char buf[64]; + + DBG("ok %d", ok); + + if (!ok) { + struct ofono_error error; + + gcd->active_context = 0; + + decode_at_error(&error, g_at_result_final_response(result)); + gcd->cb(&error, gcd->cb_data); + + return; + } + + snprintf(buf, sizeof(buf), "AT^SWWAN=1,%u", gcd->active_context); + g_at_chat_send(gcd->chat, buf, none_prefix, NULL, NULL, NULL); + + modem = ofono_gprs_context_get_modem(gc); + interface = ofono_modem_get_string(modem, "NetworkInterface"); + ofono_gprs_context_set_interface(gc, interface); + + /* Use DHCP */ + ofono_gprs_context_set_ipv4_address(gc, NULL, 0); + + CALLBACK_WITH_SUCCESS(gcd->cb, gcd->cb_data); +} + +static void cgdcont_enable_cb(gboolean ok, GAtResult *result, + gpointer user_data) +{ + struct ofono_gprs_context *gc = user_data; + struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc); + char buf[64]; + + DBG("ok %d", ok); + + if (!ok) { + struct ofono_error error; + + gcd->active_context = 0; + + decode_at_error(&error, g_at_result_final_response(result)); + gcd->cb(&error, gcd->cb_data); + + return; + } + + snprintf(buf, sizeof(buf), "AT+CGACT=1,%u", gcd->active_context); + + if (g_at_chat_send(gcd->chat, buf, none_prefix, + cgact_enable_cb, gc, NULL) == 0) + goto error; + + return; + +error: + CALLBACK_WITH_FAILURE(gcd->cb, gcd->cb_data); +} + +static void gemalto_gprs_activate_primary(struct ofono_gprs_context *gc, + const struct ofono_gprs_primary_context *ctx, + ofono_gprs_context_cb_t cb, void *data) +{ + struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc); + char buf[OFONO_GPRS_MAX_APN_LENGTH + 128]; + int len = 0; + + DBG("cid %u", ctx->cid); + + /* IPv6 support not implemented */ + if (ctx->proto != OFONO_GPRS_PROTO_IP) + goto error; + + gcd->active_context = ctx->cid; + gcd->cb_data = data; + gcd->cb = cb; + + len = snprintf(buf, sizeof(buf), "AT+CGDCONT=%u,\"IP\"", ctx->cid); + + if (ctx->apn) + snprintf(buf + len, sizeof(buf) - len - 3, ",\"%s\"", ctx->apn); + + if (g_at_chat_send(gcd->chat, buf, none_prefix, + cgdcont_enable_cb, gc, NULL) == 0) + goto error; + + return; + +error: + CALLBACK_WITH_FAILURE(cb, data); +} + +static void cgact_disable_cb(gboolean ok, GAtResult *result, + gpointer user_data) +{ + struct ofono_gprs_context *gc = user_data; + struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc); + char buf[64]; + + DBG("ok %d", ok); + + if (!ok) { + CALLBACK_WITH_FAILURE(gcd->cb, gcd->cb_data); + return; + } + + snprintf(buf, sizeof(buf), "AT^SWWAN=0,%u", gcd->active_context); + g_at_chat_send(gcd->chat, buf, none_prefix, NULL, NULL, NULL); + + gcd->active_context = 0; + + CALLBACK_WITH_SUCCESS(gcd->cb, gcd->cb_data); +} + +static void gemalto_gprs_deactivate_primary(struct ofono_gprs_context *gc, + unsigned int cid, + ofono_gprs_context_cb_t cb, + void *data) +{ + struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc); + char buf[64]; + + DBG("cid %u", cid); + + gcd->cb = cb; + gcd->cb_data = data; + + snprintf(buf, sizeof(buf), "AT+CGACT=0,%u", cid); + + if (g_at_chat_send(gcd->chat, buf, none_prefix, + cgact_disable_cb, gc, NULL) == 0) + goto error; + + return; + +error: + CALLBACK_WITH_FAILURE(cb, data); + +} + +static void cgev_notify(GAtResult *result, gpointer user_data) +{ + struct ofono_gprs_context *gc = user_data; + struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc); + GAtResultIter iter; + const char *event; + gint cid; + + g_at_result_iter_init(&iter, result); + + if (!g_at_result_iter_next(&iter, "+CGEV:")) + return; + + if (!g_at_result_iter_next_unquoted_string(&iter, &event)) + return; + + if (g_str_has_prefix(event, "NW PDN DEACT")) + sscanf(event, "%*s %*s %*s %u", &cid); + else if (g_str_has_prefix(event, "NW DEACT")) + sscanf(event, "%*s %*s %u", &cid); + else + return; + + DBG("cid %d, active cid: %d", cid, gcd->active_context); + + if ((unsigned int) cid != gcd->active_context) + return; + + ofono_gprs_context_deactivated(gc, gcd->active_context); + gcd->active_context = 0; +} + +static int gemalto_gprs_context_probe(struct ofono_gprs_context *gc, + unsigned int vendor, void *data) +{ + GAtChat *chat = data; + struct gprs_context_data *gcd; + + DBG(""); + + gcd = g_try_new0(struct gprs_context_data, 1); + if (gcd == NULL) + return -ENOMEM; + + gcd->chat = g_at_chat_clone(chat); + + ofono_gprs_context_set_data(gc, gcd); + g_at_chat_register(chat, "+CGEV:", cgev_notify, FALSE, gc, NULL); + + return 0; +} + +static void gemalto_gprs_context_remove(struct ofono_gprs_context *gc) +{ + struct gprs_context_data *gcd = ofono_gprs_context_get_data(gc); + + DBG(""); + + ofono_gprs_context_set_data(gc, NULL); + g_at_chat_unref(gcd->chat); + g_free(gcd); +} + +static const struct ofono_gprs_context_driver driver = { + .name = "gemaltomodem", + .probe = gemalto_gprs_context_probe, + .remove = gemalto_gprs_context_remove, + .activate_primary = gemalto_gprs_activate_primary, + .deactivate_primary = gemalto_gprs_deactivate_primary, +}; + +void gemalto_gprs_context_init(void) +{ + ofono_gprs_context_driver_register(&driver); +} + +void gemalto_gprs_context_exit(void) +{ + ofono_gprs_context_driver_unregister(&driver); +} -- 2.28.0 _______________________________________________ ofono mailing list -- [email protected] To unsubscribe send an email to [email protected]
