rilmodem: driver for Android modems

Driver for modems that are accessed through the Android Radio Interface
Layer (RIL) for telephony, using the gril library. The driver is almost
feature complete with some exceptions, being CBS and SAT the most
prominent.

Co-authored-by: Tony Espy <espy@canonical.com>
Co-authored-by: Ricardo Salveti de Araujo <ricardo.salveti@canonical.com>
Co-authored-by: Alfonso Sanchez-Beato <alfonso.sanchez-beato@canonical.com>
Co-authored-by: Islam Amer <islam.amer@jollamobile.com>
Co-authored-by: Jussi Kangas <jussi.kangas@tieto.com>
Co-authored-by: Juho Hämäläinen <juho.hamalainen@tieto.com>
Co-authored-by: Petri Takalokastari <petri.takalokastari@oss.tieto.com>
Co-authored-by: Jarko Poutiainen <Jarko.Poutiainen@oss.tieto.com>
Co-authored-by: Tommi Kenakkala <tommi.kenakkala@oss.tieto.com>
Co-authored-by: Miia Leinonen <miia.leinonen@oss.tieto.com>
Co-authored-by: Martti Piirainen <martti.piirainen@canonical.com>
Co-authored-by: You-Sheng Yang <vicamo.yang@canonical.com>

1 files changed, 218 insertions, 0 deletions

diff --git a/drivers/rilmodem/devinfo.c b/drivers/rilmodem/devinfo.c
new file mode 100644
index 00000000..2811837b
--- /dev/null
+++ b/drivers/rilmodem/devinfo.c
@@ -0,0 +1,218 @@
+/*
+ *
+ *  oFono - Open Source Telephony - RIL Modem Support
+ *
+ *  Copyright (C) 2008-2011  Intel Corporation. All rights reserved.
+ *  Copyright (C) 2012-2013 Canonical Ltd.
+ *
+ *  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
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <glib.h>
+
+#include <ofono/log.h>
+#include <ofono/modem.h>
+#include <ofono/devinfo.h>
+
+#include "gril.h"
+
+#include "rilmodem.h"
+#include "grilreply.h"
+
+/*
+ * TODO: The functions in this file are stubbed out, and
+ * will need to be re-worked to talk to the /gril layer
+ * in order to get real values from RILD.
+ */
+
+static void ril_query_manufacturer(struct ofono_devinfo *info,
+					ofono_devinfo_query_cb_t cb,
+					void *data)
+{
+	const char *attr = "Fake Manufacturer";
+	struct cb_data *cbd = cb_data_new(cb, data, NULL);
+	struct ofono_error error;
+	decode_ril_error(&error, "OK");
+
+	cb(&error, attr, cbd->data);
+
+	/* Note: this will need to change if cbd passed to gril layer */
+	g_free(cbd);
+}
+
+static void ril_query_model(struct ofono_devinfo *info,
+				ofono_devinfo_query_cb_t cb,
+				void *data)
+{
+	const char *attr = "Fake Modem Model";
+	struct cb_data *cbd = cb_data_new(cb, data, NULL);
+	struct ofono_error error;
+	decode_ril_error(&error, "OK");
+
+	cb(&error, attr, cbd->data);
+
+	/* Note: this will need to change if cbd passed to gril layer */
+	g_free(cbd);
+}
+
+static void query_revision_cb(struct ril_msg *message, gpointer user_data)
+{
+	struct cb_data *cbd = user_data;
+	ofono_devinfo_query_cb_t cb = cbd->cb;
+	GRil *ril = cbd->user;
+	struct ofono_error error;
+	char *revision;
+
+	if (message->error == RIL_E_SUCCESS) {
+		decode_ril_error(&error, "OK");
+	} else {
+		decode_ril_error(&error, "FAIL");
+		cb(&error, NULL, cbd->data);
+		return;
+	}
+
+	revision = g_ril_reply_parse_baseband_version(ril, message);
+
+	cb(&error, revision, cbd->data);
+
+	g_free(revision);
+}
+
+static void ril_query_revision(struct ofono_devinfo *info,
+				ofono_devinfo_query_cb_t cb,
+				void *data)
+{
+	GRil *ril = ofono_devinfo_get_data(info);
+	struct cb_data *cbd = cb_data_new(cb, data, ril);
+
+	if (g_ril_send(ril, RIL_REQUEST_BASEBAND_VERSION, NULL,
+			query_revision_cb, cbd, g_free) == 0) {
+		g_free(cbd);
+		CALLBACK_WITH_FAILURE(cb, NULL, data);
+	}
+}
+
+static void query_serial_cb(struct ril_msg *message, gpointer user_data)
+{
+	struct cb_data *cbd = user_data;
+	ofono_devinfo_query_cb_t cb = cbd->cb;
+	GRil *ril = cbd->user;
+	struct ofono_error error;
+	gchar *imei;
+
+	if (message->error == RIL_E_SUCCESS) {
+		decode_ril_error(&error, "OK");
+	} else {
+		decode_ril_error(&error, "FAIL");
+		cb(&error, NULL, cbd->data);
+		return;
+	}
+
+	imei = g_ril_reply_parse_baseband_version(ril, message);
+
+	cb(&error, imei, cbd->data);
+
+	g_free(imei);
+}
+
+static void ril_query_serial(struct ofono_devinfo *info,
+				ofono_devinfo_query_cb_t cb,
+				void *data)
+{
+	GRil *ril = ofono_devinfo_get_data(info);
+	struct cb_data *cbd = cb_data_new(cb, data, ril);
+
+	/*
+	 * TODO: make it support both RIL_REQUEST_GET_IMEI (deprecated) and
+	 * RIL_REQUEST_DEVICE_IDENTITY depending on the rild version used
+	 */
+
+	if (g_ril_send(ril, RIL_REQUEST_GET_IMEI, NULL,
+			query_serial_cb, cbd, g_free) == 0) {
+		g_free(cbd);
+		CALLBACK_WITH_FAILURE(cb, NULL, data);
+	}
+}
+
+static gboolean ril_delayed_register(gpointer user_data)
+{
+	struct ofono_devinfo *info = user_data;
+	DBG("");
+	ofono_devinfo_register(info);
+
+	/* This makes the timeout a single-shot */
+	return FALSE;
+}
+
+static int ril_devinfo_probe(struct ofono_devinfo *info, unsigned int vendor,
+				void *data)
+{
+	GRil *ril = NULL;
+
+	if (data != NULL)
+		ril = g_ril_clone(data);
+
+	ofono_devinfo_set_data(info, ril);
+
+	/*
+	 * ofono_devinfo_register() needs to be called after
+	 * the driver has been set in ofono_devinfo_create(),
+	 * which calls this function.  Most other drivers make
+	 * some kind of capabilities query to the modem, and then
+	 * call register in the callback; we use an idle event instead.
+	 */
+	g_idle_add(ril_delayed_register, info);
+
+	return 0;
+}
+
+static void ril_devinfo_remove(struct ofono_devinfo *info)
+{
+	GRil *ril = ofono_devinfo_get_data(info);
+
+	ofono_devinfo_set_data(info, NULL);
+
+	g_ril_unref(ril);
+}
+
+static struct ofono_devinfo_driver driver = {
+	.name			= RILMODEM,
+	.probe			= ril_devinfo_probe,
+	.remove			= ril_devinfo_remove,
+	.query_manufacturer	= ril_query_manufacturer,
+	.query_model		= ril_query_model,
+	.query_revision		= ril_query_revision,
+	.query_serial		= ril_query_serial
+};
+
+void ril_devinfo_init(void)
+{
+	ofono_devinfo_driver_register(&driver);
+}
+
+void ril_devinfo_exit(void)
+{
+	ofono_devinfo_driver_unregister(&driver);
+}