[PATCH BlueZ v1] adapter: Add btd_adapter_send_cmd_event_sync

[Luiz Augusto von Dentz <luiz.dentz@gmail.com>]

From: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

This adds btd_adapter_send_cmd_event_sync which acts as a function
helper to generate MGMT_OP_HCI_CMD_SYNC.
---
 src/adapter.c | 28 ++++++++++++++++++++++++++++
 src/adapter.h | 13 +++++++++++++
 2 files changed, 41 insertions(+)

diff --git a/src/adapter.c b/src/adapter.c
index fb95e8553895..6aa7c0ed0df4 100644
--- a/src/adapter.c
+++ b/src/adapter.c
@@ -11022,3 +11022,31 @@ void btd_adapter_cancel_service_auth(struct btd_adapter *adapter,
 		service_auth_cancel(auth);
 	}
 }
+
+unsigned int btd_adapter_send_cmd_event_sync(struct btd_adapter *adapter,
+					uint16_t opcode,
+					uint16_t length, const void *param,
+					uint8_t event,
+					btd_adapter_reply_event_t callback,
+					void *user_data,
+					btd_adapter_destroy_func_t destroy,
+					uint8_t timeout)
+{
+	struct {
+		struct mgmt_cp_hci_cmd_sync cp;
+		uint8_t data[UINT8_MAX];
+	} pkt;
+
+	memset(&pkt, 0, sizeof(pkt));
+	pkt.cp.opcode = cpu_to_le16(opcode);
+	pkt.cp.event = event;
+	pkt.cp.timeout = timeout;
+	pkt.cp.params_len = cpu_to_le16(length);
+
+	if (length)
+		memcpy(pkt.data, param, length);
+
+	return mgmt_send(adapter->mgmt, MGMT_OP_HCI_CMD_SYNC,
+				adapter->dev_id, sizeof(pkt.cp) + length,
+				&pkt, callback, user_data, destroy);
+}
diff --git a/src/adapter.h b/src/adapter.h
index cdcee69385cb..7a7e5c8f9dfd 100644
--- a/src/adapter.h
+++ b/src/adapter.h
@@ -302,3 +302,16 @@ void btd_adapter_store_conn_param(struct btd_adapter *adapter,
 				uint16_t latency, uint16_t timeout);
 void btd_adapter_cancel_service_auth(struct btd_adapter *adapter,
 				struct btd_device *device);
+
+typedef void (*btd_adapter_reply_event_t)(uint8_t status, uint16_t length,
+					const void *param, void *user_data);
+typedef void (*btd_adapter_destroy_func_t)(void *user_data);
+
+unsigned int btd_adapter_send_cmd_event_sync(struct btd_adapter *adapter,
+					uint16_t opcode,
+					uint16_t length, const void *param,
+					uint8_t event,
+					btd_adapter_reply_event_t callback,
+					void *user_data,
+					btd_adapter_destroy_func_t destroy,
+					uint8_t timeout);
-- 
2.52.0