Hi Vincent,

On 05/16/2017 03:38 AM, Vincent Cesson wrote:
Use Gemalto commands ^SCTM and ^SBV to monitor temperature and voltage.
Use a single method GetStatistics to read and return both values.
---
 plugins/gemalto.c | 94 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 93 insertions(+), 1 deletion(-)

diff --git a/plugins/gemalto.c b/plugins/gemalto.c
index 3798e09..9f67f17 100644
--- a/plugins/gemalto.c
+++ b/plugins/gemalto.c
@@ -53,6 +53,8 @@
 #define HARDWARE_MONITOR_INTERFACE OFONO_SERVICE ".cinterion.HardwareMonitor"

 static const char *none_prefix[] = { NULL };
+static const char *sctm_prefix[] = { "^SCTM:", NULL };
+static const char *sbv_prefix[] = { "^SBV:", NULL };

 struct gemalto_hardware_monitor {
        DBusMessage *msg;
@@ -155,13 +157,103 @@ static void cfun_enable(gboolean ok, GAtResult *result, 
gpointer user_data)
                                                NULL);
 }

+static void gemalto_sctm_cb(gboolean ok, GAtResult *result, gpointer user_data)
+{
+       DBusConnection *conn = ofono_dbus_get_connection();
+       struct gemalto_data *data = user_data;
+       GAtResultIter iter;
+       DBusMessageIter dbus_iter;
+       DBusMessageIter dbus_dict;
+
+       if (!ok)
+               goto error;
+
+       g_at_result_iter_init(&iter, result);
+
+       if (!g_at_result_iter_next(&iter, "^SCTM:"))
+               goto error;
+
+       if (!g_at_result_iter_skip_next(&iter))
+               goto error;
+
+       if (!g_at_result_iter_skip_next(&iter))
+               goto error;
+
+       if (!g_at_result_iter_next_number(&iter, &(data->hm->temperature)))

'()' are not needed around data->hm->temperature

+               goto error;
+
+       dbus_message_iter_init_append(data->hm->msg, &dbus_iter);
+
+       dbus_message_iter_open_container(&dbus_iter, DBUS_TYPE_ARRAY,
+                       OFONO_PROPERTIES_ARRAY_SIGNATURE,
+                       &dbus_dict);
+
+       ofono_dbus_dict_append(&dbus_dict, "Temperature",
+                       DBUS_TYPE_INT32, &data->hm->temperature);
+
+       ofono_dbus_dict_append(&dbus_dict, "Voltage",
+                       DBUS_TYPE_UINT32, &data->hm->voltage);
+
+       dbus_message_iter_close_container(&dbus_iter, &dbus_dict);
+
+       g_dbus_send_message(conn, data->hm->msg);
+
+       data->hm->msg = NULL;

or use __ofono_dbus_pending_reply to save a few steps.

+
+       return;
+
+error:
+       g_dbus_send_error(conn, data->hm->msg, DBUS_ERROR_FAILED,
+                       "Unable to read temperature");
+}
+
+static void gemalto_sbv_cb(gboolean ok, GAtResult *result, gpointer user_data)
+{
+       DBusConnection *conn = ofono_dbus_get_connection();
+       struct gemalto_data *data = user_data;
+       GAtResultIter iter;
+
+       if (!ok)
+               goto error;
+
+       g_at_result_iter_init(&iter, result);
+
+       if (!g_at_result_iter_next(&iter, "^SBV:"))
+               goto error;
+
+       if (!g_at_result_iter_next_number(&iter, &(data->hm->voltage)))

'()' around data->hm->voltage are not needed

+               goto error;
+
+       if (!g_at_chat_send(data->app, "AT^SCTM?", sctm_prefix, gemalto_sctm_cb,
+                       data, NULL))
+               g_dbus_send_error(conn, data->hm->msg, DBUS_ERROR_FAILED,
+                               "Unable to read temperature");
+
+       return;
+

I'm not sure distinguishing between voltage and temperature errors is useful. So why why not:

if (g_at_chat_send(...) > 0)
        return;

+error:
+       g_dbus_send_error(conn, data->hm->msg, DBUS_ERROR_FAILED,
+                       "Unable to read voltage");

and change this to a generic failed message. You can use __ofono_dbus_pending_reply. This will have the benefit of setting hm->msg to NULL so that subsequent GetStatistics calls don't return 'busy'.

+}
+
 static DBusMessage *hardware_monitor_get_statistics(DBusConnection *conn,
                                                        DBusMessage *msg,
                                                        void *user_data)
 {
+       struct gemalto_data *data = user_data;
+
        DBG("");

-       return __ofono_error_not_implemented(msg);
+       if (data->hm->msg != NULL)
+               return __ofono_error_busy(msg);
+
+       if (!g_at_chat_send(data->app, "AT^SBV", sbv_prefix, gemalto_sbv_cb,
+                       data, NULL))
+               return __ofono_error_failed(msg);
+
+       data->hm->msg = dbus_message_new_method_return(msg);
+
+       return NULL;
 }

 static const GDBusMethodTable hardware_monitor_methods[] = {


Regards,
-Denis
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