For now the interface only exposes the modem supply voltage, but is
added as a preparation for signaling power events.
---
Changes since v2:
* updated commit message
Changes since v1:
* use and export int32_t for all three properties
* place dbus functions below close_serial()
* remove doc/ changes
* update comments for charge status and level
* unregister dbus api after canceling/unregister at chats
plugins/quectel.c | 158 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 158 insertions(+)
diff --git a/plugins/quectel.c b/plugins/quectel.c
index 9cac92fa..efdb7617 100644
--- a/plugins/quectel.c
+++ b/plugins/quectel.c
@@ -37,6 +37,7 @@
#include <gattty.h>
#define OFONO_API_SUBJECT_TO_CHANGE
+#include <ofono.h>
#include <ofono/plugin.h>
#include <ofono/modem.h>
#include <ofono/devinfo.h>
@@ -49,12 +50,16 @@
#include <ofono/gprs.h>
#include <ofono/gprs-context.h>
#include <ofono/log.h>
+#include <ofono/dbus.h>
+
+#include <gdbus/gdbus.h>
#include <drivers/atmodem/atutil.h>
#include <drivers/atmodem/vendor.h>
static const char *cfun_prefix[] = { "+CFUN:", NULL };
static const char *cpin_prefix[] = { "+CPIN:", NULL };
+static const char *cbc_prefix[] = { "+CBC:", NULL };
static const char *qinistat_prefix[] = { "+QINISTAT:", NULL };
static const char *cgmm_prefix[] = { "UC15", "Quectel_M95", "Quectel_MC60",
NULL };
@@ -95,6 +100,16 @@ struct quectel_data {
struct l_gpio_writer *gpio;
};
+struct dbus_hw {
+ DBusMessage *msg;
+ struct ofono_modem *modem;
+ int32_t charge_status;
+ int32_t charge_level;
+ int32_t voltage;
+};
+
+static const char dbus_hw_interface[] = OFONO_SERVICE ".quectel.Hardware";
+
static void quectel_debug(const char *str, void *user_data)
{
const char *prefix = user_data;
@@ -227,6 +242,142 @@ static void close_serial(struct ofono_modem *modem)
ofono_modem_set_powered(modem, false);
}
+static void dbus_hw_reply_properties(struct dbus_hw *hw)
+{
+ struct quectel_data *data = ofono_modem_get_data(hw->modem);
+ DBusMessage *reply;
+ DBusMessageIter dbus_iter;
+ DBusMessageIter dbus_dict;
+
+ DBG("%p", hw->modem);
+
+ reply = dbus_message_new_method_return(hw->msg);
+ dbus_message_iter_init_append(reply, &dbus_iter);
+ dbus_message_iter_open_container(&dbus_iter, DBUS_TYPE_ARRAY,
+ OFONO_PROPERTIES_ARRAY_SIGNATURE,
+ &dbus_dict);
+
+ /*
+ * the charge status/level received from m95 and mc60 are invalid so
+ * only return those for the UC15 modem.
+ */
+ if (data->model == QUECTEL_UC15) {
+ ofono_dbus_dict_append(&dbus_dict, "ChargeStatus",
+ DBUS_TYPE_INT32, &hw->charge_status);
+
+ ofono_dbus_dict_append(&dbus_dict, "ChargeLevel",
+ DBUS_TYPE_INT32, &hw->charge_level);
+ }
+
+ ofono_dbus_dict_append(&dbus_dict, "Voltage", DBUS_TYPE_INT32,
+ &hw->voltage);
+
+ dbus_message_iter_close_container(&dbus_iter, &dbus_dict);
+
+ __ofono_dbus_pending_reply(&hw->msg, reply);
+}
+
+static void cbc_cb(gboolean ok, GAtResult *result, gpointer user_data)
+{
+ struct dbus_hw *hw = user_data;
+ GAtResultIter iter;
+
+ DBG("%p", hw->modem);
+
+ if (!hw->msg)
+ return;
+
+ if (!ok)
+ goto error;
+
+ g_at_result_iter_init(&iter, result);
+
+ if (!g_at_result_iter_next(&iter, "+CBC:"))
+ goto error;
+
+ /* the returned charge status is valid only for uc15 */
+ if (!g_at_result_iter_next_number(&iter, &hw->charge_status))
+ goto error;
+
+ /* the returned charge level is valid only for uc15 */
+ if (!g_at_result_iter_next_number(&iter, &hw->charge_level))
+ goto error;
+
+ /* now comes the millivolts */
+ if (!g_at_result_iter_next_number(&iter, &hw->voltage))
+ goto error;
+
+ dbus_hw_reply_properties(hw);
+
+ return;
+
+error:
+ __ofono_dbus_pending_reply(&hw->msg, __ofono_error_failed(hw->msg));
+}
+
+static DBusMessage *dbus_hw_get_properties(DBusConnection *conn,
+ DBusMessage *msg,
+ void *user_data)
+{
+ struct dbus_hw *hw = user_data;
+ struct quectel_data *data = ofono_modem_get_data(hw->modem);
+
+ DBG("%p", hw->modem);
+
+ if (hw->msg != NULL)
+ return __ofono_error_busy(msg);
+
+ if (!g_at_chat_send(data->aux, "AT+CBC", cbc_prefix, cbc_cb, hw, NULL))
+ return __ofono_error_failed(msg);
+
+ hw->msg = dbus_message_ref(msg);
+
+ return NULL;
+}
+
+static const GDBusMethodTable dbus_hw_methods[] = {
+ { GDBUS_ASYNC_METHOD("GetProperties",
+ NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
+ dbus_hw_get_properties) },
+ {}
+};
+
+static void dbus_hw_cleanup(void *data)
+{
+ struct dbus_hw *hw = data;
+
+ DBG("%p", hw->modem);
+
+ if (hw->msg)
+ __ofono_dbus_pending_reply(&hw->msg,
+ __ofono_error_canceled(hw->msg));
+
+ l_free(hw);
+}
+
+static void dbus_hw_enable(struct ofono_modem *modem)
+{
+ DBusConnection *conn = ofono_dbus_get_connection();
+ const char *path = ofono_modem_get_path(modem);
+ struct dbus_hw *hw;
+
+ DBG("%p", modem);
+
+ hw = l_new(struct dbus_hw, 1);
+ hw->modem = modem;
+
+ if (!g_dbus_register_interface(conn, path, dbus_hw_interface,
+ dbus_hw_methods, NULL, NULL,
+ hw, dbus_hw_cleanup)) {
+ ofono_error("Could not register %s interface under %s",
+ dbus_hw_interface, path);
+ l_free(hw);
+ return;
+ }
+
+ ofono_modem_add_interface(modem, dbus_hw_interface);
+}
+
static void cpin_notify(GAtResult *result, gpointer user_data)
{
struct ofono_modem *modem = user_data;
@@ -253,6 +404,8 @@ static void cpin_notify(GAtResult *result, gpointer
user_data)
g_at_chat_unregister(data->aux, data->cpin_ready);
data->cpin_ready = 0;
+
+ dbus_hw_enable(modem);
}
static void cpin_query(gboolean ok, GAtResult *result, gpointer user_data)
@@ -650,6 +803,8 @@ static void cfun_disable(gboolean ok, GAtResult *result,
gpointer user_data)
static int quectel_disable(struct ofono_modem *modem)
{
struct quectel_data *data = ofono_modem_get_data(modem);
+ DBusConnection *conn = ofono_dbus_get_connection();
+ const char *path = ofono_modem_get_path(modem);
DBG("%p", modem);
@@ -659,6 +814,9 @@ static int quectel_disable(struct ofono_modem *modem)
g_at_chat_cancel_all(data->aux);
g_at_chat_unregister_all(data->aux);
+ if (g_dbus_unregister_interface(conn, path, dbus_hw_interface))
+ ofono_modem_remove_interface(modem, dbus_hw_interface);
+
g_at_chat_send(data->aux, "AT+CFUN=0", cfun_prefix, cfun_disable, modem,
NULL);
--
2.22.0
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