This commit answers a NOTIFY command to register for nofications of
EVENT_VOLUME_CHANGED with an INTERIM response containing the current
absolute volume value.
---
profiles/audio/avrcp.c | 15 +++++++++++++++
profiles/audio/transport.h | 1 +
2 files changed, 16 insertions(+)
diff --git a/profiles/audio/avrcp.c b/profiles/audio/avrcp.c
index bb8ab24..b1016df 100644
--- a/profiles/audio/avrcp.c
+++ b/profiles/audio/avrcp.c
@@ -62,6 +62,7 @@
#include "avdtp.h"
#include "sink.h"
#include "player.h"
+#include "transport.h"
/* Company IDs for vendor dependent commands */
#define IEEEID_BTSIG 0x001958
@@ -1247,6 +1248,7 @@ static uint8_t avrcp_handle_register_notification(struct avrcp *session,
uint8_t transaction)
{
struct avrcp_player *player = session->player;
+ struct audio_device *dev = session->dev;
uint16_t len = ntohs(pdu->params_len);
uint64_t uid;
GList *settings;
@@ -1293,6 +1295,17 @@ static uint8_t avrcp_handle_register_notification(struct avrcp *session,
}
break;
+ case AVRCP_EVENT_VOLUME_CHANGED:
+ if (session->version < 0x0104)
+ goto err;
+
+ pdu->params[1] = media_transport_get_device_volume(dev);
+ if (pdu->params[1] > 127)
+ goto err;
+
+ len = 2;
+
+ break;
default:
/* All other events are not supported yet */
goto err;
@@ -1414,6 +1427,8 @@ static const struct control_pdu_handler tg_control_handlers[] = {
static const struct control_pdu_handler ct_control_handlers[] = {
{ AVRCP_GET_CAPABILITIES, AVC_CTYPE_STATUS,
avrcp_handle_get_capabilities },
+ { AVRCP_REGISTER_NOTIFICATION, AVC_CTYPE_NOTIFY,
+ avrcp_handle_register_notification },
{ },
};
diff --git a/profiles/audio/transport.h b/profiles/audio/transport.h
index 78c6fa7..cbbd0b6 100644
--- a/profiles/audio/transport.h
+++ b/profiles/audio/transport.h
@@ -23,6 +23,7 @@
*/
struct media_transport;
+struct media_endpoint;
struct media_transport *media_transport_create(struct media_endpoint *endpoint,
struct audio_device *device,
--
1.7.11.7
--
To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
