samsung: Add skeleton driver for Samsung LTE device

1 files changed, 283 insertions, 0 deletions

diff --git a/plugins/samsung.c b/plugins/samsung.c
new file mode 100644
index 00000000..8e0d360d
--- /dev/null
+++ b/plugins/samsung.c
@@ -0,0 +1,283 @@
+/*
+ *
+ *  oFono - Open Source Telephony
+ *
+ *  Copyright (C) 2008-2011  Intel Corporation. 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 <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+
+#include <glib.h>
+#include <gatchat.h>
+#include <gattty.h>
+
+#define OFONO_API_SUBJECT_TO_CHANGE
+#include <ofono/plugin.h>
+#include <ofono/modem.h>
+#include <ofono/devinfo.h>
+#include <ofono/sim.h>
+#include <ofono/netreg.h>
+#include <ofono/log.h>
+
+#include <drivers/atmodem/atutil.h>
+#include <drivers/atmodem/vendor.h>
+
+static const char *none_prefix[] = { NULL };
+
+struct samsung_data {
+	GAtChat *chat;
+	gboolean have_sim;
+	struct at_util_sim_state_query *sim_state_query;
+};
+
+static void samsung_debug(const char *str, void *data)
+{
+	const char *prefix = data;
+
+	ofono_info("%s%s", prefix, str);
+}
+
+static int samsung_probe(struct ofono_modem *modem)
+{
+	struct samsung_data *data;
+
+	DBG("%p", modem);
+
+	data = g_try_new0(struct samsung_data, 1);
+	if (data == NULL)
+		return -ENOMEM;
+
+	ofono_modem_set_data(modem, data);
+
+	return 0;
+}
+
+static void samsung_remove(struct ofono_modem *modem)
+{
+	struct samsung_data *data = ofono_modem_get_data(modem);
+
+	DBG("%p", modem);
+
+	ofono_modem_set_data(modem, NULL);
+
+	/* Cleanup potential SIM state polling */
+	at_util_sim_state_query_free(data->sim_state_query);
+
+	/* Cleanup after hot-unplug */
+	g_at_chat_unref(data->chat);
+
+	g_free(data);
+}
+
+static void mode_select(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct ofono_modem *modem = user_data;
+	struct samsung_data *data = ofono_modem_get_data(modem);
+
+	DBG("%p", modem);
+
+	if (!ok) {
+		g_at_chat_unref(data->chat);
+		data->chat = NULL;
+
+		ofono_modem_set_powered(modem, FALSE);
+		return;
+	}
+
+	g_at_chat_send(data->chat, "AT+VERSNAME=1,0", NULL, NULL, NULL, NULL);
+	g_at_chat_send(data->chat, "AT+VERSNAME=1,1", NULL, NULL, NULL, NULL);
+
+	ofono_modem_set_powered(modem, TRUE);
+}
+
+static void sim_state_cb(gboolean present, gpointer user_data)
+{
+	struct ofono_modem *modem = user_data;
+	struct samsung_data *data = ofono_modem_get_data(modem);
+
+	DBG("%p", modem);
+
+	at_util_sim_state_query_free(data->sim_state_query);
+	data->sim_state_query = NULL;
+
+	data->have_sim = present;
+
+	g_at_chat_send(data->chat, "AT+MODESELECT=3", none_prefix,
+						mode_select, modem, NULL);
+}
+
+static void cfun_enable(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct ofono_modem *modem = user_data;
+	struct samsung_data *data = ofono_modem_get_data(modem);
+
+	DBG("%p", modem);
+
+	if (!ok) {
+		g_at_chat_unref(data->chat);
+		data->chat = NULL;
+
+		ofono_modem_set_powered(modem, FALSE);
+		return;
+	}
+
+	data->sim_state_query = at_util_sim_state_query_new(data->chat,
+						1, 5, sim_state_cb, modem);
+}
+
+static int samsung_enable(struct ofono_modem *modem)
+{
+	struct samsung_data *data = ofono_modem_get_data(modem);
+	GAtSyntax *syntax;
+	GIOChannel *channel;
+	GHashTable *options;
+	const char *device;
+
+	device = ofono_modem_get_string(modem, "ControlPort");
+	if (device == NULL)
+		return -EINVAL;
+
+	options = g_hash_table_new(g_str_hash, g_str_equal);
+	if (options == NULL)
+		return -ENOMEM;
+
+	g_hash_table_insert(options, "Baud", "115200");
+	g_hash_table_insert(options, "Parity", "none");
+	g_hash_table_insert(options, "StopBits", "1");
+	g_hash_table_insert(options, "DataBits", "8");
+	g_hash_table_insert(options, "XonXoff", "off");
+	g_hash_table_insert(options, "RtsCts", "on");
+	g_hash_table_insert(options, "Local", "on");
+	g_hash_table_insert(options, "Read", "on");
+
+	channel = g_at_tty_open(device, options);
+
+	g_hash_table_destroy(options);
+
+	if (channel == NULL)
+		return -EIO;
+
+	syntax = g_at_syntax_new_gsm_permissive();
+	data->chat = g_at_chat_new(channel, syntax);
+	g_at_syntax_unref(syntax);
+
+	g_io_channel_unref(channel);
+
+	if (data->chat == NULL)
+		return -ENOMEM;
+
+	if (getenv("OFONO_AT_DEBUG"))
+		g_at_chat_set_debug(data->chat, samsung_debug, "Device: ");
+
+	g_at_chat_send(data->chat, "ATE0", NULL, NULL, NULL, NULL);
+	g_at_chat_send(data->chat, "AT+CMEE=1", NULL, NULL, NULL, NULL);
+
+	g_at_chat_send(data->chat, "AT+CFUN=?", none_prefix, NULL, NULL, NULL);
+	g_at_chat_send(data->chat, "AT+CFUN?", none_prefix, NULL, NULL, NULL);
+
+	g_at_chat_send(data->chat, "AT+CFUN=5", none_prefix,
+					cfun_enable, modem, NULL);
+
+	return -EINPROGRESS;
+}
+
+static void cfun_disable(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct ofono_modem *modem = user_data;
+	struct samsung_data *data = ofono_modem_get_data(modem);
+
+	DBG("%p", modem);
+
+	g_at_chat_unref(data->chat);
+	data->chat = NULL;
+
+	if (ok)
+		ofono_modem_set_powered(modem, FALSE);
+}
+
+static int samsung_disable(struct ofono_modem *modem)
+{
+	struct samsung_data *data = ofono_modem_get_data(modem);
+
+	DBG("%p", modem);
+
+	g_at_chat_cancel_all(data->chat);
+	g_at_chat_unregister_all(data->chat);
+
+	g_at_chat_send(data->chat, "AT+MODESELECT=2", none_prefix,
+					cfun_disable, modem, NULL);
+
+	return -EINPROGRESS;
+}
+
+static void samsung_pre_sim(struct ofono_modem *modem)
+{
+	struct samsung_data *data = ofono_modem_get_data(modem);
+	struct ofono_sim *sim;
+
+	DBG("%p", modem);
+
+	ofono_devinfo_create(modem, 0, "atmodem", data->chat);
+	sim = ofono_sim_create(modem, 0, "atmodem", data->chat);
+
+	if (sim && data->have_sim == TRUE)
+		ofono_sim_inserted_notify(sim, TRUE);
+}
+
+static void samsung_post_sim(struct ofono_modem *modem)
+{
+	DBG("%p", modem);
+}
+
+static void samsung_post_online(struct ofono_modem *modem)
+{
+	struct samsung_data *data = ofono_modem_get_data(modem);
+
+	DBG("%p", modem);
+
+	ofono_netreg_create(modem, OFONO_VENDOR_SAMSUNG, "atmodem", data->chat);
+}
+
+static struct ofono_modem_driver samsung_driver = {
+	.name		= "samsung",
+	.probe		= samsung_probe,
+	.remove		= samsung_remove,
+	.enable		= samsung_enable,
+	.disable	= samsung_disable,
+	.pre_sim	= samsung_pre_sim,
+	.post_sim	= samsung_post_sim,
+	.post_online	= samsung_post_online,
+};
+
+static int samsung_init(void)
+{
+	return ofono_modem_driver_register(&samsung_driver);
+}
+
+static void samsung_exit(void)
+{
+	ofono_modem_driver_unregister(&samsung_driver);
+}
+
+OFONO_PLUGIN_DEFINE(samsung, "Samsung modem driver", VERSION,
+		OFONO_PLUGIN_PRIORITY_DEFAULT, samsung_init, samsung_exit)