atmodem: add gnss driver

diff --git a/Makefile.am b/Makefile.am
index e18d07d..fc8b946 100644 (file)
--- 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 ce6c10a..be93f41 100644 (file)
--- 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 a6720d1..41f480f 100644 (file)
--- 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 (file)
index 0000000..f2ed0a7
--- /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);
+}