diff --git a/drivers/bluetooth/controller/hci/hci.c b/drivers/bluetooth/controller/hci/hci.c
index 8ea2f45c699..9a3cb4d756b 100644
--- a/drivers/bluetooth/controller/hci/hci.c
+++ b/drivers/bluetooth/controller/hci/hci.c
@@ -45,168 +45,6 @@ enum {
 	HCI_EVT = 0x04,
 };
 
-/*****************************************************************************
- * HCI EVENTS
-*****************************************************************************/
-
-enum {
-	HCI_EVT_CODE_DISCONNECTION_COMPLETE = 0x05,
-	HCI_EVT_CODE_ENCRYPTION_CHANGE = 0x08,
-	HCI_EVT_CODE_READ_REMOTE_VERSION_INFO_COMPLETE = 0x0C,
-	HCI_EVT_CODE_COMMAND_COMPLETE = 0x0E,
-	HCI_EVT_CODE_COMMAND_STATUS = 0x0F,
-	HCI_EVT_CODE_NUM_COMPLETE = 0x13,
-	HCI_EVT_CODE_ENCRYPTION_KEY_REFRESH_COMPLETE = 0x30,
-	HCI_EVT_CODE_LE_META = 0x3E,
-	HCI_EVT_CODE_APTO_EXPIRED = 0x57,
-};
-
-enum {
-	HCI_EVT_ERROR_CODE_SUCCESS = 0x00,
-	HCI_EVT_ERROR_CODE_UNKNOWN_HCI_COMMAND = 0x01,
-	HCI_EVT_ERROR_CODE_PIN_OR_KEY_MISSING = 0x06,
-	HCI_EVT_ERROR_CODE_MEM_CAPACITY_EXCEEDED = 0x07,
-	HCI_EVT_ERROR_CODE_COMMAND_DISALLOWED = 0x0C,
-};
-
-struct __packed hci_evt_cmd_cmplt_unknown_hci_command {
-	uint8_t status;
-};
-
-struct __packed hci_evt_disconnect_cmplt {
-	uint8_t status;
-	uint16_t conn_handle;
-	uint8_t reason;
-};
-
-struct __packed hci_evt_encryption_change {
-	uint8_t status;
-	uint16_t conn_handle;
-	uint8_t enabled;
-};
-
-struct __packed hci_evt_read_remote_version_info_cmplt {
-	uint8_t status;
-	uint16_t conn_handle;
-	uint8_t version_number;
-	uint16_t company_id;
-	uint16_t sub_version_number;
-};
-
-struct __packed hci_evt_num_cmplt {
-	uint8_t num_handles;
-	uint8_t handles_nums[1];
-};
-
-struct __packed hci_evt_encryption_key_refresh_cmplt {
-	uint8_t status;
-	uint16_t conn_handle;
-};
-
-enum {
-	HCI_EVT_LE_META_CONNECTION_COMPLETE = 0x01,
-	HCI_EVT_LE_META_ADV_REPORT,
-	HCI_EVT_LE_META_CONNECTION_UPDATE_COMPLETE,
-	HCI_EVT_LE_META_READ_REMOTE_USED_FEATURE_COMPLETE,
-	HCI_EVT_LE_META_LONG_TERM_KEY_REQUEST,
-	HCI_EVT_LE_META_REMOTE_CONNECTION_PARAMETER_REQUEST,
-	HCI_EVT_LE_META_LENGTH_CHANGE,
-};
-
-struct __packed hci_evt_le_meta_conn_complete {
-	uint8_t status;
-	uint16_t conn_handle;
-	uint8_t role;
-	uint8_t addr_type;
-	uint8_t addr[BDADDR_SIZE];
-	uint16_t interval;
-	uint16_t latency;
-	uint16_t timeout;
-	uint8_t mca;
-};
-
-struct __packed hci_evt_le_meta_adv_report {
-	uint8_t num_reports;
-	uint8_t reports[1];
-};
-
-struct __packed hci_evt_le_meta_conn_update_complete {
-	uint8_t status;
-	uint16_t conn_handle;
-	uint16_t interval;
-	uint16_t latency;
-	uint16_t timeout;
-};
-
-struct __packed hci_evt_le_meta_read_remote_used_features {
-	uint8_t status;
-	uint16_t conn_handle;
-	uint8_t features[8];
-};
-
-struct __packed hci_evt_le_meta_long_term_key_request {
-	uint16_t conn_handle;
-	uint8_t rand[8];
-	uint8_t ediv[2];
-};
-
-struct __packed hci_evt_le_meta_remote_conn_param_request {
-	uint16_t conn_handle;
-	uint16_t interval_min;
-	uint16_t interval_max;
-	uint16_t latency;
-	uint16_t timeout;
-};
-
-struct __packed hci_evt_le_meta_length_change {
-	uint16_t conn_handle;
-	uint16_t max_tx_octets;
-	uint16_t max_tx_time;
-	uint16_t max_rx_octets;
-	uint16_t max_rx_time;
-};
-
-struct __packed hci_evt_le_meta {
-	uint8_t subevent_code;
-	union __packed {
-		struct hci_evt_le_meta_conn_complete conn_cmplt;
-		struct hci_evt_le_meta_adv_report adv_report;
-		struct hci_evt_le_meta_conn_update_complete conn_update_cmplt;
-
-		struct hci_evt_le_meta_read_remote_used_features
-			remote_used_features;
-
-		struct hci_evt_le_meta_long_term_key_request
-			long_term_key_request;
-
-		struct hci_evt_le_meta_remote_conn_param_request
-			remote_conn_param_request;
-		struct hci_evt_le_meta_length_change length_change;
-	} subevent;
-};
-
-struct __packed hci_evt_apto_expired {
-	uint16_t conn_handle;
-};
-
-struct __packed hci_evt {
-	uint8_t code;
-	uint8_t len;
-	union __packed {
-		struct hci_evt_disconnect_cmplt disconnect_cmplt;
-		struct hci_evt_encryption_change encryption_change;
-
-		struct hci_evt_read_remote_version_info_cmplt
-			read_remote_version_info_cmplt;
-		struct hci_evt_num_cmplt num_cmplt;
-
-		struct hci_evt_encryption_key_refresh_cmplt
-			encryption_key_refresh_cmplt;
-		struct hci_evt_le_meta le_meta;
-		struct hci_evt_apto_expired apto_expired;
-	} params;
-};
-
 struct __packed hci_data {
 	uint16_t handle:12;
 	uint16_t pb:2;