atmodem: add gnss driver

4 files changed, 289 insertions, 1 deletions

diff --git a/Makefile.am b/Makefile.am
index e18d07df..fc8b9468 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -180,7 +180,8 @@ builtin_sources += $(gatchat_sources) \
 				drivers/atmodem/atutil.c \
 				drivers/atmodem/gprs.c \
 				drivers/atmodem/gprs-context.c \
-				drivers/atmodem/sim-auth.c
+				drivers/atmodem/sim-auth.c \
+				drivers/atmodem/gnss.c
 
 builtin_modules += nwmodem
 builtin_sources += drivers/atmodem/atutil.h \
diff --git a/drivers/atmodem/atmodem.c b/drivers/atmodem/atmodem.c
index ce6c10a9..be93f419 100644
--- a/drivers/atmodem/atmodem.c
+++ b/drivers/atmodem/atmodem.c
@@ -51,6 +51,7 @@ static int atmodem_init(void)
 	at_gprs_init();
 	at_gprs_context_init();
 	at_sim_auth_init();
+	at_gnss_init();
 
 	return 0;
 }
@@ -74,6 +75,7 @@ static void atmodem_exit(void)
 	at_call_volume_exit();
 	at_gprs_exit();
 	at_gprs_context_exit();
+	at_gnss_exit();
 }
 
 OFONO_PLUGIN_DEFINE(atmodem, "AT modem driver", VERSION,
diff --git a/drivers/atmodem/atmodem.h b/drivers/atmodem/atmodem.h
index a6720d15..41f480fe 100644
--- a/drivers/atmodem/atmodem.h
+++ b/drivers/atmodem/atmodem.h
@@ -71,3 +71,6 @@ extern void at_gprs_context_exit(void);
 
 extern void at_sim_auth_init(void);
 extern void at_sim_auth_exit(void);
+
+extern void at_gnss_init(void);
+extern void at_gnss_exit(void);
diff --git a/drivers/atmodem/gnss.c b/drivers/atmodem/gnss.c
new file mode 100644
index 00000000..f2ed0a74
--- /dev/null
+++ b/drivers/atmodem/gnss.c
@@ -0,0 +1,282 @@
+/*
+ *
+ *  oFono - Open Source Telephony
+ *
+ *  Copyright (C) 2008-2010  Intel Corporation. All rights reserved.
+ *  Copyright (C) 2011 ST-Ericsson AB.
+ *
+ *  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 <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+
+#include <glib.h>
+
+#include <ofono/log.h>
+#include <ofono/modem.h>
+#include <ofono/gnss.h>
+
+#include "gatchat.h"
+#include "gatresult.h"
+
+#include "atmodem.h"
+#include "vendor.h"
+
+struct gnss_data {
+	GAtChat *chat;
+	unsigned int vendor;
+};
+
+static const char *none_prefix[] = { NULL };
+static const char *cpos_prefix[] = { "+CPOS:", NULL };
+static const char *cposr_prefix[] = { "+CPOSR:", NULL };
+
+static void gnss_pr_cb(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct cb_data *cbd = user_data;
+	ofono_gnss_cb_t cb = cbd->cb;
+	struct ofono_error error;
+
+	DBG("");
+
+	decode_at_error(&error, g_at_result_final_response(result));
+
+	cb(&error, cbd->data);
+}
+
+static void at_gnss_position_reporting(struct ofono_gnss *gnss,
+					ofono_bool_t enable,
+					ofono_gnss_cb_t cb,
+					void *data)
+{
+	struct gnss_data *ad = ofono_gnss_get_data(gnss);
+	struct cb_data *cbd = cb_data_new(cb, data);
+
+	DBG("");
+
+	if (enable) {
+		g_at_chat_send(ad->chat, "AT+CPOSR=1",
+				cposr_prefix, gnss_pr_cb, cbd, g_free);
+
+		if (ad->vendor == OFONO_VENDOR_STE)
+			g_at_chat_send(ad->chat, "AT*EPOSADRR=1",
+					NULL, NULL, NULL, NULL);
+	} else {
+		g_at_chat_send(ad->chat, "AT+CPOSR=0",
+				cposr_prefix, gnss_pr_cb, cbd, g_free);
+
+		if (ad->vendor == OFONO_VENDOR_STE)
+			g_at_chat_send(ad->chat, "AT*EPOSADRR=0",
+					NULL, NULL, NULL, NULL);
+	}
+}
+
+static void gnss_se_cb(gboolean ok, GAtResult *result, gpointer user_data)
+{
+	struct cb_data *cbd = user_data;
+	ofono_gnss_cb_t cb = cbd->cb;
+	struct ofono_error error;
+
+	DBG("");
+
+	decode_at_error(&error, g_at_result_final_response(result));
+
+	cb(&error, cbd->data);
+}
+
+static void at_gnss_send_element(struct ofono_gnss *gnss,
+				const char *xml,
+				ofono_gnss_cb_t cb, void *data)
+{
+	struct gnss_data *ad = ofono_gnss_get_data(gnss);
+	struct cb_data *cbd = cb_data_new(cb, data);
+	char *buf = g_try_new(char, strlen(xml) + 10);
+	int len;
+
+	DBG("");
+
+	if (buf == NULL)
+		goto error;
+
+	len = sprintf(buf, "AT+CPOS\r");
+	len += sprintf(buf + len, "%s", xml);
+
+	if (g_at_chat_send_and_expect_short_prompt(ad->chat, buf, cpos_prefix,
+							gnss_se_cb, cbd,
+							g_free) > 0) {
+		g_free(buf);
+		return;
+	}
+
+error:
+	g_free(buf);
+	g_free(cbd);
+
+	CALLBACK_WITH_FAILURE(cb, data);
+}
+
+static gboolean gnss_parse_report(GAtResult *result, const char *prefix,
+					const char **xml)
+{
+	GAtResultIter iter;
+
+	g_at_result_iter_init(&iter, result);
+
+	if (!g_at_result_iter_next(&iter, prefix))
+		return FALSE;
+
+	if (!g_at_result_iter_next_unquoted_string(&iter, xml))
+		return FALSE;
+
+	return TRUE;
+}
+
+static void gnss_report(GAtResult *result, gpointer user_data)
+{
+	struct ofono_gnss *gnss = user_data;
+	const char *xml;
+
+	DBG("");
+
+	xml = NULL;
+	if (!gnss_parse_report(result, "+CPOSR:", &xml)) {
+		ofono_error("Unable to parse CPOSR notification");
+		return;
+	}
+
+	if (xml == NULL) {
+		ofono_error("Unable to parse CPOSR notification");
+		return;
+	}
+
+	ofono_gnss_notify_posr_request(gnss, xml);
+}
+
+static void at_gnss_reset_notify(GAtResult *result, gpointer user_data)
+{
+	struct ofono_gnss *gnss = user_data;
+
+	DBG("");
+
+	ofono_gnss_notify_posr_reset(gnss);
+}
+
+static void at_gnss_not_supported(struct ofono_gnss *gnss)
+{
+	ofono_error("gnss not supported by this modem.");
+
+	ofono_gnss_remove(gnss);
+}
+
+static void at_gnss_cposr_support_cb(gboolean ok, GAtResult *result,
+					gpointer user_data)
+{
+	struct ofono_gnss *gnss = user_data;
+	struct gnss_data *ad = ofono_gnss_get_data(gnss);
+
+	DBG("");
+
+	if (!ok) {
+		at_gnss_not_supported(gnss);
+		return;
+	}
+
+	g_at_chat_register(ad->chat, "+CPOSR:", gnss_report,
+				FALSE, gnss, NULL);
+
+	if (ad->vendor == OFONO_VENDOR_STE)
+		g_at_chat_register(ad->chat, "*EPOSADRR:", at_gnss_reset_notify,
+					FALSE, gnss, NULL);
+
+	ofono_gnss_register(gnss);
+}
+
+static void at_gnss_cpos_support_cb(gboolean ok, GAtResult *result,
+					gpointer user_data)
+{
+	struct ofono_gnss *gnss = user_data;
+	struct gnss_data *ad = ofono_gnss_get_data(gnss);
+
+	DBG("");
+
+	if (!ok) {
+		at_gnss_not_supported(gnss);
+		return;
+	}
+
+	g_at_chat_send(ad->chat, "AT+CPOSR=?",
+			none_prefix, at_gnss_cposr_support_cb, gnss, NULL);
+}
+
+static int at_gnss_probe(struct ofono_gnss *gnss, unsigned int vendor,
+				void *user)
+{
+	GAtChat *chat = user;
+	struct gnss_data *gd;
+
+	DBG("");
+
+	gd = g_try_new0(struct gnss_data, 1);
+	if (gd == NULL)
+		return -ENOMEM;
+
+	gd->chat = g_at_chat_clone(chat);
+	gd->vendor = vendor;
+
+	ofono_gnss_set_data(gnss, gd);
+
+	g_at_chat_send(gd->chat, "AT+CPOS=?",
+			none_prefix, at_gnss_cpos_support_cb, gnss, NULL);
+
+	return 0;
+}
+
+static void at_gnss_remove(struct ofono_gnss *gnss)
+{
+	struct gnss_data *gd = ofono_gnss_get_data(gnss);
+
+	DBG("");
+
+	ofono_gnss_set_data(gnss, NULL);
+
+	g_at_chat_unref(gd->chat);
+	g_free(gd);
+}
+
+static struct ofono_gnss_driver driver = {
+	.name			= "atmodem",
+	.probe			= at_gnss_probe,
+	.remove			= at_gnss_remove,
+	.send_element		= at_gnss_send_element,
+	.set_position_reporting	= at_gnss_position_reporting,
+};
+
+void at_gnss_init(void)
+{
+	ofono_gnss_driver_register(&driver);
+}
+
+void at_gnss_exit(void)
+{
+	ofono_gnss_driver_unregister(&driver);
+}