[PATCH] plugins: Add support for SIM7100E by SIMCom

Bob Ham bob.ham at puri.sm
Mon Apr 30 06:56:06 PDT 2018


Add support for the SIM7100E modem.  We add a new "sim7100" plugin
because there's no other AT-based modem that has support for both GPRS
and voice calls.
---
 Makefile.am       |   3 +
 plugins/sim7100.c | 271 ++++++++++++++++++++++++++++++++++++++++++++++
 plugins/udevng.c  |  56 +++++++++-
 3 files changed, 327 insertions(+), 3 deletions(-)
 create mode 100644 plugins/sim7100.c

diff --git a/Makefile.am b/Makefile.am
index a921bd2b..6dee4ce3 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -499,6 +499,9 @@ builtin_sources += plugins/samsung.c
 builtin_modules += sim900
 builtin_sources += plugins/sim900.c
 
+builtin_modules += sim7100
+builtin_sources += plugins/sim7100.c
+
 builtin_modules += connman
 builtin_sources += plugins/connman.c
 
diff --git a/plugins/sim7100.c b/plugins/sim7100.c
new file mode 100644
index 00000000..7986abf2
--- /dev/null
+++ b/plugins/sim7100.c
@@ -0,0 +1,271 @@
+/*
+ *
+ *  oFono - Open Source Telephony
+ *
+ *  Copyright (C) 2008-2011  Intel Corporation. All rights reserved.
+ *  Copyright (C) 2009  Collabora Ltd. All rights reserved.
+ *  Copyright 2018 Purism SPC
+ *
+ *  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
+ *
+ */
+
+/*
+ * This file was originally copied from g1.c and
+ * modified by Bob Ham <bob.ham at puri.sm>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <errno.h>
+
+#include <glib.h>
+#include <gatchat.h>
+#include <gattty.h>
+
+#define OFONO_API_SUBJECT_TO_CHANGE
+#include <ofono/plugin.h>
+#include <ofono/log.h>
+#include <ofono/modem.h>
+#include <ofono/call-barring.h>
+#include <ofono/call-forwarding.h>
+#include <ofono/call-meter.h>
+#include <ofono/call-settings.h>
+#include <ofono/devinfo.h>
+#include <ofono/message-waiting.h>
+#include <ofono/netreg.h>
+#include <ofono/phonebook.h>
+#include <ofono/sim.h>
+#include <ofono/sms.h>
+#include <ofono/ussd.h>
+#include <ofono/voicecall.h>
+#include <ofono/gprs.h>
+#include <ofono/gprs-context.h>
+
+#include <drivers/atmodem/vendor.h>
+
+struct sim7100_data {
+	GAtChat *at;
+	GAtChat *ppp;
+};
+
+static void sim7100_debug(const char *str, void *user_data)
+{
+	const char *prefix = user_data;
+
+	ofono_info("%s%s", prefix, str);
+}
+
+/* Detect hardware, and initialize if found */
+static int sim7100_probe(struct ofono_modem *modem)
+{
+	struct sim7100_data *data;
+
+	DBG("");
+
+	data = g_try_new0(struct sim7100_data, 1);
+	if (data == NULL)
+		return -ENOMEM;
+
+	ofono_modem_set_data(modem, data);
+
+	return 0;
+}
+
+static void sim7100_remove(struct ofono_modem *modem)
+{
+	struct sim7100_data *data = ofono_modem_get_data(modem);
+
+	DBG("");
+
+	if (!data)
+		return;
+
+	if (data->at)
+		g_at_chat_unref(data->at);
+
+	if (data->ppp)
+		g_at_chat_unref(data->ppp);
+
+	ofono_modem_set_data(modem, NULL);
+	g_free (data);
+}
+
+static void cfun_set_on_cb(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct ofono_modem *modem = user_data;
+
+	DBG("");
+
+	if (ok)
+		ofono_modem_set_powered(modem, TRUE);
+}
+
+static int open_device(struct ofono_modem *modem, const char *devkey,
+		       GAtChat **chatp)
+{
+	GIOChannel *channel;
+	GAtSyntax *syntax;
+	GAtChat *chat;
+	const char *device;
+
+	DBG("devkey=%s", devkey);
+
+	device = ofono_modem_get_string(modem, devkey);
+	if (device == NULL)
+		return -EINVAL;
+
+	channel = g_at_tty_open(device, NULL);
+	if (channel == NULL)
+		return -EIO;
+
+	syntax = g_at_syntax_new_gsm_permissive();
+	chat = g_at_chat_new(channel, syntax);
+	g_at_syntax_unref(syntax);
+	g_io_channel_unref(channel);
+
+	if (chat == NULL)
+		return -EIO;
+
+	if (getenv("OFONO_AT_DEBUG"))
+		g_at_chat_set_debug(chat, sim7100_debug, "");
+
+	*chatp = chat;
+	return 0;
+}
+
+static int sim7100_enable(struct ofono_modem *modem)
+{
+	struct sim7100_data *data = ofono_modem_get_data(modem);
+	int err;
+
+	DBG("");
+
+	err = open_device(modem, "AT", &data->at);
+	if (err < 0)
+		return err;
+
+	err = open_device(modem, "PPP", &data->ppp);
+	if (err < 0)
+		return err;
+
+	/* ensure modem is in a known state; verbose on, echo/quiet off */
+	g_at_chat_send(data->at, "ATE0Q0V1", NULL, NULL, NULL, NULL);
+
+	/* power up modem */
+	g_at_chat_send(data->at, "AT+CFUN=1", NULL, cfun_set_on_cb, modem, NULL);
+
+	return 0;
+}
+
+static void cfun_set_off_cb(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct ofono_modem *modem = user_data;
+	struct sim7100_data *data = ofono_modem_get_data(modem);
+
+	DBG("");
+
+	g_at_chat_unref(data->ppp);
+	g_at_chat_unref(data->at);
+	data->at = data->ppp = NULL;
+
+	if (ok)
+		ofono_modem_set_powered(modem, FALSE);
+}
+
+static int sim7100_disable(struct ofono_modem *modem)
+{
+	struct sim7100_data *data = ofono_modem_get_data(modem);
+
+	DBG("");
+
+	/* power down modem */
+	g_at_chat_cancel_all(data->ppp);
+	g_at_chat_cancel_all(data->at);
+	g_at_chat_unregister_all(data->ppp);
+	g_at_chat_unregister_all(data->at);
+	g_at_chat_send(data->at, "AT+CFUN=0", NULL, cfun_set_off_cb, modem, NULL);
+
+	return -EINPROGRESS;
+}
+
+static void sim7100_pre_sim(struct ofono_modem *modem)
+{
+	struct sim7100_data *data = ofono_modem_get_data(modem);
+	struct ofono_sim *sim;
+
+	DBG("");
+
+	ofono_devinfo_create(modem, 0, "atmodem", data->at);
+	sim = ofono_sim_create(modem, 0, "atmodem", data->at);
+	ofono_voicecall_create(modem, 0, "atmodem", data->at);
+
+	if (sim)
+		ofono_sim_inserted_notify(sim, TRUE);
+}
+
+static void sim7100_post_sim(struct ofono_modem *modem)
+{
+	struct sim7100_data *data = ofono_modem_get_data(modem);
+	struct ofono_message_waiting *mw;
+	struct ofono_gprs *gprs = NULL;
+	struct ofono_gprs_context *gc = NULL;
+
+	DBG("");
+
+	ofono_ussd_create(modem, 0, "atmodem", data->at);
+	ofono_call_forwarding_create(modem, 0, "atmodem", data->at);
+	ofono_call_settings_create(modem, 0, "atmodem", data->at);
+	ofono_netreg_create(modem, 0, "atmodem", data->at);
+	ofono_call_meter_create(modem, 0, "atmodem", data->at);
+	ofono_call_barring_create(modem, 0, "atmodem", data->at);
+	ofono_sms_create(modem, OFONO_VENDOR_SIMCOM, "atmodem", data->at);
+	ofono_phonebook_create(modem, 0, "atmodem", data->at);
+
+	gprs = ofono_gprs_create(modem, 0, "atmodem", data->at);
+	gc = ofono_gprs_context_create(modem, 0, "atmodem", data->ppp);
+
+	if (gprs && gc)
+		ofono_gprs_add_context(gprs, gc);
+
+	mw = ofono_message_waiting_create(modem);
+	if (mw)
+		ofono_message_waiting_register(mw);
+}
+
+static struct ofono_modem_driver sim7100_driver = {
+	.name		= "sim7100",
+	.probe		= sim7100_probe,
+	.remove		= sim7100_remove,
+	.enable		= sim7100_enable,
+	.disable	= sim7100_disable,
+	.pre_sim	= sim7100_pre_sim,
+	.post_sim	= sim7100_post_sim,
+};
+
+static int sim7100_init(void)
+{
+	return ofono_modem_driver_register(&sim7100_driver);
+}
+
+static void sim7100_exit(void)
+{
+	ofono_modem_driver_unregister(&sim7100_driver);
+}
+
+OFONO_PLUGIN_DEFINE(sim7100, "SIMCom SIM7100E modem driver", VERSION,
+		    OFONO_PLUGIN_PRIORITY_DEFAULT, sim7100_init, sim7100_exit)
diff --git a/plugins/udevng.c b/plugins/udevng.c
index ff5d41af..cd56fd56 100644
--- a/plugins/udevng.c
+++ b/plugins/udevng.c
@@ -710,7 +710,7 @@ static gboolean setup_telitqmi(struct modem_info *modem)
 	return TRUE;
 }
 
-static gboolean setup_simcom(struct modem_info *modem)
+static gboolean setup_sim900(struct modem_info *modem)
 {
 	const char *mdm = NULL, *aux = NULL, *gps = NULL, *diag = NULL;
 	GSList *list;
@@ -1213,6 +1213,54 @@ static gboolean setup_xmm7xxx(struct modem_info *modem)
 	return TRUE;
 }
 
+static gboolean setup_sim7100(struct modem_info *modem)
+{
+	const char *at = NULL, *ppp = NULL, *gps = NULL, *diag = NULL, *audio = NULL;
+	GSList *list;
+
+	DBG("%s", modem->syspath);
+
+	for (list = modem->devices; list; list = list->next) {
+		struct device_info *info = list->data;
+
+		DBG("%s %s", info->devnode, info->number);
+
+		/*
+		 * Serial port layout:
+		 * 0: QCDM/DIAG
+		 * 1: NMEA
+		 * 2: AT
+		 * 3: AT/PPP
+		 * 4: audio
+		 *
+		 * -- https://www.spinics.net/lists/linux-usb/msg135728.html
+		 */
+		if (g_strcmp0(info->number, "00") == 0)
+			diag = info->devnode;
+		else if (g_strcmp0(info->number, "01") == 0)
+			gps = info->devnode;
+		else if (g_strcmp0(info->number, "02") == 0)
+			at = info->devnode;
+		else if (g_strcmp0(info->number, "03") == 0)
+			ppp = info->devnode;
+		else if (g_strcmp0(info->number, "04") == 0)
+			audio = info->devnode;
+	}
+
+	if (at == NULL)
+		return FALSE;
+
+	DBG("at=%s ppp=%s gps=%s diag=%s, audio=%s", at, ppp, gps, diag, audio);
+
+	ofono_modem_set_string(modem->modem, "AT", at);
+	ofono_modem_set_string(modem->modem, "PPP", ppp);
+	ofono_modem_set_string(modem->modem, "GPS", gps);
+	ofono_modem_set_string(modem->modem, "Diag", diag);
+	ofono_modem_set_string(modem->modem, "Audio", audio);
+
+	return TRUE;
+}
+
 static struct {
 	const char *name;
 	gboolean (*setup)(struct modem_info *modem);
@@ -1232,7 +1280,8 @@ static struct {
 	{ "nokia",	setup_nokia	},
 	{ "telit",	setup_telit,	"device/interface"	},
 	{ "telitqmi",	setup_telitqmi	},
-	{ "simcom",	setup_simcom	},
+	{ "sim900",	setup_sim900	},
+	{ "sim7100",	setup_sim7100	},
 	{ "zte",	setup_zte	},
 	{ "icera",	setup_icera	},
 	{ "samsung",	setup_samsung	},
@@ -1596,7 +1645,8 @@ static struct {
 	{ "alcatel",	"option",	"1bbb", "0017"	},
 	{ "novatel",	"option",	"1410"		},
 	{ "zte",	"option",	"19d2"		},
-	{ "simcom",	"option",	"05c6", "9000"	},
+	{ "sim900",	"option",	"05c6", "9000"	},
+	{ "sim7100",	"option",	"1e0e", "9001"	},
 	{ "telit",	"usbserial",	"1bc7"		},
 	{ "telit",	"option",	"1bc7"		},
 	{ "telit",	"cdc_acm",	"1bc7", "0021"	},
-- 
2.17.0



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