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Maemo6 MCE: listen to adapter powered state

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Registers a callback to btd_adapter to get notified when the
powered state of the adapter is changed. This is needed to update
the state stored in the MCE if the adapter is powered on or off
using for example SetProperty(Powered). The current setting of
the MCE is saved in a variable and if the notification to the
plugin does not match this value the MCE is updated accordingly
using its DBus method for setting radio states.
This commit is contained in:
Daniel Orstadius 2010-08-17 15:48:45 +03:00 committed by Johan Hedberg
parent 3d6d85ef3a
commit f2591f09af
1 changed files with 48 additions and 2 deletions
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50
plugins/maemo6.c
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@ -43,11 +43,13 @@
#define MCE_SIGNAL_IF "com.nokia.mce.signal"
#define MCE_REQUEST_PATH "/com/nokia/mce/request"
#define MCE_SIGNAL_PATH "/com/nokia/mce/signal"
#define MCE_RADIO_STATES_CHANGE_REQ "req_radio_states_change"
#define MCE_RADIO_STATES_GET "get_radio_states"
#define MCE_RADIO_STATES_SIG "radio_states_ind"
static guint watch_id;
static DBusConnection *conn = NULL;
static gboolean mce_bt_set = FALSE;
static gboolean mce_signal_callback(DBusConnection *connection,
DBusMessage *message, void *user_data)
@ -66,7 +68,11 @@ static gboolean mce_signal_callback(DBusConnection *connection,
dbus_message_iter_get_basic(&args, &sigvalue);
DBG("got signal with value %u", sigvalue);
if (sigvalue & MCE_RADIO_STATE_BLUETOOTH)
/* set the adapter according to the mce signal
and remember the value */
mce_bt_set = sigvalue & MCE_RADIO_STATE_BLUETOOTH;
if (mce_bt_set)
btd_adapter_switch_online(adapter);
else
btd_adapter_switch_offline(adapter);
@ -102,13 +108,48 @@ static void read_radio_states_cb(DBusPendingCall *call, void *user_data)
goto done;
}
if (radio_states & MCE_RADIO_STATE_BLUETOOTH)
DBG("radio_states: %d", radio_states);
mce_bt_set = radio_states & MCE_RADIO_STATE_BLUETOOTH;
if (mce_bt_set)
btd_adapter_switch_online(adapter);
else
btd_adapter_switch_offline(adapter);
done:
dbus_message_unref(reply);
}
static void adapter_powered(struct btd_adapter *adapter, gboolean powered)
{
DBusMessage *msg;
dbus_uint32_t radio_states = 0;
dbus_uint32_t radio_mask = MCE_RADIO_STATE_BLUETOOTH;
DBG("adapter_powered called with %d", powered);
/* nothing to do if the states match */
if (mce_bt_set == powered)
return;
/* set the mce value according to the state of the adapter */
msg = dbus_message_new_method_call(MCE_SERVICE, MCE_REQUEST_PATH,
MCE_REQUEST_IF, MCE_RADIO_STATES_CHANGE_REQ);
if (powered)
radio_states = MCE_RADIO_STATE_BLUETOOTH;
dbus_message_append_args(msg, DBUS_TYPE_UINT32, &radio_states,
DBUS_TYPE_UINT32, &radio_mask,
DBUS_TYPE_INVALID);
if (!dbus_connection_send(conn, msg, NULL))
error("calling %s failed", MCE_RADIO_STATES_CHANGE_REQ);
dbus_message_unref(msg);
}
static int mce_probe(struct btd_adapter *adapter)
{
DBusMessage *msg;
@ -132,6 +173,9 @@ static int mce_probe(struct btd_adapter *adapter)
watch_id = g_dbus_add_signal_watch(conn, NULL, MCE_SIGNAL_PATH,
MCE_SIGNAL_IF, MCE_RADIO_STATES_SIG,
mce_signal_callback, adapter, NULL);
btd_adapter_register_powered_callback(adapter, adapter_powered);
return 0;
}
@ -141,6 +185,8 @@ static void mce_remove(struct btd_adapter *adapter)
if (watch_id > 0)
g_dbus_remove_watch(conn, watch_id);
btd_adapter_unregister_powered_callback(adapter, adapter_powered);
}
static struct btd_adapter_driver mce_driver = {