1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (c) 2003-2018, Intel Corporation. All rights reserved.
4 * Intel Management Engine Interface (Intel MEI) Linux driver
16 * enum mei_hbm_state - host bus message protocol state
18 * @MEI_HBM_IDLE : protocol not started
19 * @MEI_HBM_STARTING : start request message was sent
20 * @MEI_HBM_CAP_SETUP : capabilities request message was sent
21 * @MEI_HBM_DR_SETUP : dma ring setup request message was sent
22 * @MEI_HBM_ENUM_CLIENTS : enumeration request was sent
23 * @MEI_HBM_CLIENT_PROPERTIES : acquiring clients properties
24 * @MEI_HBM_STARTED : enumeration was completed
25 * @MEI_HBM_STOPPED : stopping exchange
33 MEI_HBM_CLIENT_PROPERTIES,
38 const char *mei_hbm_state_str(enum mei_hbm_state state);
40 int mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr);
42 void mei_hbm_idle(struct mei_device *dev);
43 void mei_hbm_reset(struct mei_device *dev);
44 int mei_hbm_start_req(struct mei_device *dev);
45 int mei_hbm_start_wait(struct mei_device *dev);
46 int mei_hbm_cl_flow_control_req(struct mei_device *dev, struct mei_cl *cl);
47 int mei_hbm_cl_disconnect_req(struct mei_device *dev, struct mei_cl *cl);
48 int mei_hbm_cl_disconnect_rsp(struct mei_device *dev, struct mei_cl *cl);
49 int mei_hbm_cl_connect_req(struct mei_device *dev, struct mei_cl *cl);
50 bool mei_hbm_version_is_supported(struct mei_device *dev);
51 int mei_hbm_pg(struct mei_device *dev, u8 pg_cmd);
52 void mei_hbm_pg_resume(struct mei_device *dev);
53 int mei_hbm_cl_notify_req(struct mei_device *dev,
54 struct mei_cl *cl, u8 request);
55 int mei_hbm_cl_dma_map_req(struct mei_device *dev, struct mei_cl *cl);
56 int mei_hbm_cl_dma_unmap_req(struct mei_device *dev, struct mei_cl *cl);
57 #endif /* _MEI_HBM_H_ */