drivers: gemalto: add gprs-context driver

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.
This commit is contained in:
Sergey Matyukevich 2020-08-18 23:43:45 +03:00 committed by Denis Kenzior
parent 288f263ab6
commit da1ef6588b
4 changed files with 286 additions and 2 deletions

View File

@ -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 \

View File

@ -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,

View File

@ -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();

View File

@ -0,0 +1,278 @@
/*
*
* 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_new0(struct gprs_context_data, 1);
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);
}