[PATCH v2 3/9] Use state change callback from media interface

["Frédéric Dalleau" <frederic.dalleau@linux.intel.com>]

When a HFPHS endpoint is created, media will start to watch for
HandsfreeGateway state changes. media call SetConfiguration upon
connection and ClearConfiguration upon disconnection.
---
 audio/media.c |   56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 56 insertions(+), 0 deletions(-)

diff --git a/audio/media.c b/audio/media.c
index 2076d04..ae2b471 100644
--- a/audio/media.c
+++ b/audio/media.c
@@ -43,6 +43,7 @@
 #include "transport.h"
 #include "a2dp.h"
 #include "headset.h"
+#include "gateway.h"
 #include "manager.h"
 
 #ifndef DBUS_TYPE_UNIX_FD
@@ -78,6 +79,7 @@ struct media_endpoint {
 	uint8_t			*capabilities;	/* Endpoint property capabilities */
 	size_t			size;		/* Endpoint capabilities size */
 	guint			hs_watch;
+	guint			ag_watch;
 	guint			watch;
 	struct endpoint_request *request;
 	struct media_transport	*transport;
@@ -118,6 +120,9 @@ static void media_endpoint_destroy(struct media_endpoint *endpoint)
 	if (endpoint->hs_watch)
 		headset_remove_state_cb(endpoint->hs_watch);
 
+	if (endpoint->ag_watch)
+		gateway_remove_state_cb(endpoint->ag_watch);
+
 	if (endpoint->request)
 		media_endpoint_cancel(endpoint);
 
@@ -553,6 +558,46 @@ static void a2dp_destroy_endpoint(void *user_data)
 	release_endpoint(endpoint);
 }
 
+static void gateway_setconf_cb(struct media_endpoint *endpoint, void *ret,
+						int size, void *user_data)
+{
+	struct audio_device *dev = user_data;
+
+	if (ret != NULL)
+		return;
+
+	gateway_set_state(dev, GATEWAY_STATE_DISCONNECTED);
+}
+
+static void gateway_state_changed(struct audio_device *dev,
+					gateway_state_t old_state,
+					gateway_state_t new_state,
+					void *user_data)
+{
+	struct media_endpoint *endpoint = user_data;
+
+	DBG("");
+
+	switch (new_state) {
+	case GATEWAY_STATE_DISCONNECTED:
+		if (endpoint->transport &&
+			media_transport_get_dev(endpoint->transport) == dev) {
+
+			DBG("Clear endpoint %p", endpoint);
+			clear_configuration(endpoint);
+		}
+		break;
+	case GATEWAY_STATE_CONNECTING:
+		set_configuration(endpoint, dev, NULL, 0,
+					gateway_setconf_cb, dev, NULL);
+		break;
+	case GATEWAY_STATE_CONNECTED:
+		break;
+	case GATEWAY_STATE_PLAYING:
+		break;
+	}
+}
+
 static struct media_endpoint *media_endpoint_create(struct media_adapter *adapter,
 						const char *sender,
 						const char *path,
@@ -604,6 +649,17 @@ static struct media_endpoint *media_endpoint_create(struct media_adapter *adapte
 		if (dev)
 			set_configuration(endpoint, dev, NULL, 0,
 						headset_setconf_cb, dev, NULL);
+	} else if (strcasecmp(uuid, HFP_HS_UUID) == 0 ||
+					strcasecmp(uuid, HSP_HS_UUID) == 0) {
+		struct audio_device *dev;
+
+		endpoint->ag_watch = gateway_add_state_cb(gateway_state_changed,
+								endpoint);
+		dev = manager_find_device(NULL, &adapter->src, BDADDR_ANY,
+						AUDIO_GATEWAY_INTERFACE, TRUE);
+		if (dev)
+			set_configuration(endpoint, dev, NULL, 0,
+						gateway_setconf_cb, dev, NULL);
 	} else {
 		if (err)
 			*err = -EINVAL;
-- 
1.7.1