--- /dev/null
+#ifndef _BT_HCI_H
+#define _BT_HCI_H
+
+/* HCI Command OGF */
+#define HCI_LINK_CTRL_OGF 0x01
+#define HCI_LINK_POLICY_OGF 0x02
+#define HCI_HC_BB_OGF 0x03
+#define HCI_INFO_PARAM_OGF 0x04
+
+/* HCI Command OCF */
+#define HCI_DISCONN_OCF 0x06
+#define HCI_ACCEPT_CONN_REQ_OCF 0x09
+#define HCI_RESET_OCF 0x03
+#define HCI_W_SCAN_EN_OCF 0x1A
+#define HCI_R_COD_OCF 0x23
+#define HCI_W_COD_OCF 0x24
+#define HCI_H_BUF_SIZE_OCF 0x33
+#define HCI_H_NUM_COMPL_OCF 0x35
+#define HCI_R_BUF_SIZE_OCF 0x05
+#define HCI_R_BD_ADDR_OCF 0x09
+#define HCI_W_LOCAL_NAME_OCF 0x13
+#define HCI_PIN_CODE_REQ_REP_OCF 0x0D
+#define HCI_R_STORED_LINK_KEY_OCF 0x0D
+#define HCI_W_STORED_LINK_KEY_OCF 0x11
+#define HCI_LINK_KEY_REQ_REP_OCF 0x0B
+
+#define HCI_COMMAND_PACKET 0x01
+#define HCI_ACL_DATA_PACKET 0x02
+#define HCI_SCO_DATA_PACKET 0x03
+#define HCI_EVENT_PACKET 0x04
+
+#define HCI_EVENT_INQUIRY_COMPLETE 0x01
+#define HCI_EVENT_INQUIRY_RESULT 0x02
+#define HCI_EVENT_CONNECTION_COMPLETE 0x03
+#define HCI_EVENT_CONNECTION_REQUEST 0x04
+#define HCI_EVENT_DISCONNECTION_COMPLETE 0x05
+#define HCI_EVENT_AUTHENTICATION_COMPLETE_EVENT 0x06
+#define HCI_EVENT_REMOTE_NAME_REQUEST_COMPLETE 0x07
+#define HCI_EVENT_ENCRYPTION_CHANGE 0x08
+#define HCI_EVENT_CHANGE_CONNECTION_LINK_KEY_COMPLETE 0x09
+#define HCI_EVENT_MASTER_LINK_KEY_COMPLETE 0x0A
+#define HCI_EVENT_READ_REMOTE_SUPPORTED_FEATURES_COMPLETE 0x0B
+#define HCI_EVENT_READ_REMOTE_VERSION_INFORMATION_COMPLETE 0x0C
+#define HCI_EVENT_QOS_SETUP_COMPLETE 0x0D
+#define HCI_EVENT_COMMAND_COMPLETE 0x0E
+#define HCI_EVENT_COMMAND_STATUS 0x0F
+#define HCI_EVENT_HARDWARE_ERROR 0x10
+#define HCI_EVENT_FLUSH_OCCURED 0x11
+#define HCI_EVENT_ROLE_CHANGE 0x12
+#define HCI_EVENT_NUMBER_OF_COMPLETED_PACKETS 0x13
+#define HCI_EVENT_MODE_CHANGE_EVENT 0x14
+#define HCI_EVENT_RETURN_LINK_KEYS 0x15
+#define HCI_EVENT_PIN_CODE_REQUEST 0x16
+#define HCI_EVENT_LINK_KEY_REQUEST 0x17
+#define HCI_EVENT_LINK_KEY_NOTIFICATION 0x18
+#define HCI_EVENT_DATA_BUFFER_OVERFLOW 0x1A
+#define HCI_EVENT_MAX_SLOTS_CHANGED 0x1B
+#define HCI_EVENT_READ_CLOCK_OFFSET_COMPLETE 0x1C
+#define HCI_EVENT_PACKET_TYPE_CHANGED 0x1D
+#define HCI_EVENT_PAGE_SCAN_REPETION_MODE_CHANGE 0x20
+#define HCI_EVENT_INQUIRY_RESULT_WITH_RSSI 0x22
+#define HCI_EVENT_EXTENDED_INQUIRY_RESPONSE 0x2F
+#define HCI_EVENT_LE_META 0x3E
+#define HCI_EVENT_VENDOR_SPECIFIC 0xFF
+
+#define HCI_SUBEVENT_LE_CONNECTION_COMPLETE 0x01
+#define HCI_SUBEVENT_LE_ADVERTISING_REPORT 0x02
+#define HCI_SUBEVENT_LE_CONNECTION_UPDATE_COMPLETE 0x03
+#define HCI_SUBEVENT_LE_READ_REMOTE_USED_FEATURES_COMPLETE 0x04
+#define HCI_SUBEVENT_LE_LONG_TERM_KEY_REQUEST 0x05
+
+#define HCI_LINK_TYPE_SCO 0x00
+#define HCI_LINK_TYPE_ACL 0x01
+#define HCI_LINK_TYPE_ESCO 0x02
+
+#define HCI_BB_SCAN_NOSCAN 0x00
+#define HCI_BB_SCAN_INQUIRY 0x01
+#define HCI_BB_SCAN_PAGE 0x02
+
+/* CC256x specific eHCILL */
+#define EHCILL_GO_TO_SLEEP_IND 0x30
+#define EHCILL_GO_TO_SLEEP_ACK 0x31
+#define EHCILL_WAKE_UP_IND 0x32
+#define EHCILL_WAKE_UP_ACK 0x33
+
+void bt_hci_init(void);
+void bt_hci_cmd(const uint8_t OGF, const uint8_t OCF, const uint8_t data_len, const void *data);
+void bt_acl_send(const uint16_t handle, const uint8_t PB, const uint8_t BC, const uint16_t channel, const uint16_t len, const void *dat);
+uint8_t *bt_hci_get_local_bdaddr(void);
+void bt_hci_ehcill_wake(void);
+#endif
+