---
audio/gateway.c | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
audio/gateway.h | 7 ++++++
2 files changed, 68 insertions(+), 0 deletions(-)
diff --git a/audio/gateway.c b/audio/gateway.c
index e9485d0..805b8cb 100644
--- a/audio/gateway.c
+++ b/audio/gateway.c
@@ -72,6 +72,14 @@ struct gateway {
int version;
};
+struct gateway_state_callback {
+ gateway_state_cb cb;
+ void *user_data;
+ unsigned int id;
+};
+
+static GSList *gateway_callbacks = NULL;
+
int gateway_close(struct audio_device *device);
static const char *state2str(gateway_state_t state)
@@ -104,16 +112,37 @@ static void change_state(struct audio_device *dev, gateway_state_t new_state)
{
struct gateway *gw = dev->gateway;
const char *val;
+ GSList *l;
+ gateway_state_t old_state;
if (gw->state == new_state)
return;
val = state2str(new_state);
+ old_state = gw->state;
gw->state = new_state;
emit_property_changed(dev->conn, dev->path,
AUDIO_GATEWAY_INTERFACE, "State",
DBUS_TYPE_STRING, &val);
+
+ for (l = gateway_callbacks; l != NULL; l = l->next) {
+ struct gateway_state_callback *cb = l->data;
+ cb->cb(dev, old_state, new_state, cb->user_data);
+ }
+}
+
+void gateway_set_state(struct audio_device *dev, gateway_state_t new_state)
+{
+ switch (new_state) {
+ case GATEWAY_STATE_DISCONNECTED:
+ gateway_close(dev);
+ break;
+ case GATEWAY_STATE_CONNECTING:
+ case GATEWAY_STATE_CONNECTED:
+ case GATEWAY_STATE_PLAYING:
+ break;
+ }
}
static void agent_disconnect(struct audio_device *dev, struct hf_agent *agent)
@@ -810,3 +839,35 @@ void gateway_suspend_stream(struct audio_device *dev)
gw->sco_start_cb_data = NULL;
change_state(dev, GATEWAY_STATE_CONNECTED);
}
+
+unsigned int gateway_add_state_cb(gateway_state_cb cb, void *user_data)
+{
+ struct gateway_state_callback *state_cb;
+ static unsigned int id = 0;
+
+ state_cb = g_new(struct gateway_state_callback, 1);
+ state_cb->cb = cb;
+ state_cb->user_data = user_data;
+ state_cb->id = ++id;
+
+ gateway_callbacks = g_slist_append(gateway_callbacks, state_cb);
+
+ return state_cb->id;
+}
+
+gboolean gateway_remove_state_cb(unsigned int id)
+{
+ GSList *l;
+
+ for (l = gateway_callbacks; l != NULL; l = l->next) {
+ struct gateway_state_callback *cb = l->data;
+ if (cb && cb->id == id) {
+ gateway_callbacks = g_slist_remove(gateway_callbacks,
+ cb);
+ g_free(cb);
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
diff --git a/audio/gateway.h b/audio/gateway.h
index a45ef82..32b5d6d 100644
--- a/audio/gateway.h
+++ b/audio/gateway.h
@@ -33,9 +33,14 @@ typedef enum {
GATEWAY_STATE_PLAYING,
} gateway_state_t;
+typedef void (*gateway_state_cb) (struct audio_device *dev,
+ gateway_state_t old_state,
+ gateway_state_t new_state,
+ void *user_data);
typedef void (*gateway_stream_cb_t) (struct audio_device *dev, GError *err,
void *user_data);
+void gateway_set_state(struct audio_device *dev, gateway_state_t new_state);
void gateway_unregister(struct audio_device *dev);
struct gateway *gateway_init(struct audio_device *device);
gboolean gateway_is_connected(struct audio_device *dev);
@@ -49,3 +54,5 @@ int gateway_config_stream(struct audio_device *dev, gateway_stream_cb_t cb,
gboolean gateway_cancel_stream(struct audio_device *dev, unsigned int id);
int gateway_get_sco_fd(struct audio_device *dev);
void gateway_suspend_stream(struct audio_device *dev);
+unsigned int gateway_add_state_cb(gateway_state_cb cb, void *user_data);
+gboolean gateway_remove_state_cb(unsigned int id);
--
1.7.1
--
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