From 49e49b00dc6b15952118eef29f5f2c14bc5712c8 Mon Sep 17 00:00:00 2001
From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Date: Mon, 19 May 2014 12:41:54 +0300
Subject: [PATCH] android/avrcp-lib: Add support for SetAbsoluteVolume PDU

---
 android/avrcp-lib.c | 40 ++++++++++++++++++++++++++++++++++++++++
 android/avrcp-lib.h |  4 ++++
 2 files changed, 44 insertions(+)

diff --git a/android/avrcp-lib.c b/android/avrcp-lib.c
index 7aeab434d..036867ecf 100644
--- a/android/avrcp-lib.c
+++ b/android/avrcp-lib.c
@@ -709,6 +709,27 @@ static ssize_t register_notification(struct avrcp *session, uint8_t transaction,
 							player->user_data);
 }
 
+static ssize_t set_volume(struct avrcp *session, uint8_t transaction,
+					uint16_t params_len, uint8_t *params,
+					void *user_data)
+{
+	struct avrcp_player *player = user_data;
+	uint8_t volume;
+
+	DBG("");
+
+	if (!player->ind || !player->ind->set_volume)
+		return -ENOSYS;
+
+	if (!params || params_len != sizeof(volume))
+		return -EINVAL;
+
+	volume = params[0] & 0x7f;
+
+	return player->ind->set_volume(session, transaction, volume,
+							player->user_data);
+}
+
 static ssize_t set_addressed(struct avrcp *session, uint8_t transaction,
 					uint16_t params_len, uint8_t *params,
 					void *user_data)
@@ -761,6 +782,9 @@ static const struct avrcp_control_handler player_handlers[] = {
 		{ AVRCP_REGISTER_NOTIFICATION,
 					AVC_CTYPE_NOTIFY, AVC_CTYPE_INTERIM,
 					register_notification },
+		{ AVRCP_SET_ABSOLUTE_VOLUME,
+					AVC_CTYPE_CONTROL, AVC_CTYPE_STABLE,
+					set_volume },
 		{ AVRCP_SET_ADDRESSED_PLAYER,
 					AVC_CTYPE_CONTROL, AVC_CTYPE_STABLE,
 					set_addressed },
@@ -2705,6 +2729,22 @@ int avrcp_register_notification_rsp(struct avrcp *session, uint8_t transaction,
 				&iov, 1);
 }
 
+int avrcp_set_volume_rsp(struct avrcp *session, uint8_t transaction,
+							uint8_t volume)
+{
+	struct iovec iov;
+
+	if (volume > 127)
+		return -EINVAL;
+
+	iov.iov_base = &volume;
+	iov.iov_len = sizeof(volume);
+
+	return avrcp_send(session, transaction, AVC_CTYPE_STABLE,
+				AVC_SUBUNIT_PANEL, AVRCP_SET_ABSOLUTE_VOLUME,
+				&iov, 1);
+}
+
 int avrcp_set_addressed_player_rsp(struct avrcp *session, uint8_t transaction,
 							uint8_t status)
 {
diff --git a/android/avrcp-lib.h b/android/avrcp-lib.h
index f91a007f4..ee03958fe 100644
--- a/android/avrcp-lib.h
+++ b/android/avrcp-lib.h
@@ -157,6 +157,8 @@ struct avrcp_control_ind {
 	int (*register_notification) (struct avrcp *session,
 					uint8_t transaction, uint8_t event,
 					uint32_t interval, void *user_data);
+	int (*set_volume) (struct avrcp *session, uint8_t transaction,
+					uint8_t volume, void *user_data);
 	int (*set_addressed) (struct avrcp *session, uint8_t transaction,
 					uint16_t id, void *user_data);
 	int (*get_folder_items) (struct avrcp *session, uint8_t transaction,
@@ -313,6 +315,8 @@ int avrcp_get_element_attrs_rsp(struct avrcp *session, uint8_t transaction,
 int avrcp_register_notification_rsp(struct avrcp *session, uint8_t transaction,
 					uint8_t code, uint8_t *params,
 					size_t params_len);
+int avrcp_set_volume_rsp(struct avrcp *session, uint8_t transaction,
+							uint8_t volume);
 int avrcp_set_addressed_player_rsp(struct avrcp *session, uint8_t transaction,
 							uint8_t status);
 int avrcp_get_folder_items_rsp(struct avrcp *session, uint8_t transaction,
-- 
2.47.3