| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * |
| 3 | * Intel Management Engine Interface (Intel MEI) Linux driver |
| 4 | * Copyright (c) 2003-2012, Intel Corporation. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms and conditions of the GNU General Public License, |
| 8 | * version 2, as published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 13 | * more details. |
| 14 | * |
| 15 | */ |
| 16 | |
| 17 | #ifndef _MEI_HBM_H_ |
| 18 | #define _MEI_HBM_H_ |
| 19 | |
| 20 | struct mei_device; |
| 21 | struct mei_msg_hdr; |
| 22 | struct mei_cl; |
| 23 | |
| 24 | /** |
| 25 | * enum mei_hbm_state - host bus message protocol state |
| 26 | * |
| 27 | * @MEI_HBM_IDLE : protocol not started |
| 28 | * @MEI_HBM_STARTING : start request message was sent |
| 29 | * @MEI_HBM_ENUM_CLIENTS : enumeration request was sent |
| 30 | * @MEI_HBM_CLIENT_PROPERTIES : acquiring clients properties |
| 31 | * @MEI_HBM_STARTED : enumeration was completed |
| 32 | * @MEI_HBM_STOPPED : stopping exchange |
| 33 | */ |
| 34 | enum mei_hbm_state { |
| 35 | MEI_HBM_IDLE = 0, |
| 36 | MEI_HBM_STARTING, |
| 37 | MEI_HBM_ENUM_CLIENTS, |
| 38 | MEI_HBM_CLIENT_PROPERTIES, |
| 39 | MEI_HBM_STARTED, |
| 40 | MEI_HBM_STOPPED, |
| 41 | }; |
| 42 | |
| 43 | const char *mei_hbm_state_str(enum mei_hbm_state state); |
| 44 | |
| 45 | int mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr); |
| 46 | |
| 47 | void mei_hbm_idle(struct mei_device *dev); |
| 48 | void mei_hbm_reset(struct mei_device *dev); |
| 49 | int mei_hbm_start_req(struct mei_device *dev); |
| 50 | int mei_hbm_start_wait(struct mei_device *dev); |
| 51 | int mei_hbm_cl_flow_control_req(struct mei_device *dev, struct mei_cl *cl); |
| 52 | int mei_hbm_cl_disconnect_req(struct mei_device *dev, struct mei_cl *cl); |
| 53 | int mei_hbm_cl_disconnect_rsp(struct mei_device *dev, struct mei_cl *cl); |
| 54 | int mei_hbm_cl_connect_req(struct mei_device *dev, struct mei_cl *cl); |
| 55 | bool mei_hbm_version_is_supported(struct mei_device *dev); |
| 56 | int mei_hbm_pg(struct mei_device *dev, u8 pg_cmd); |
| 57 | void mei_hbm_pg_resume(struct mei_device *dev); |
| 58 | int mei_hbm_cl_notify_req(struct mei_device *dev, |
| 59 | struct mei_cl *cl, u8 request); |
| 60 | |
| 61 | #endif /* _MEI_HBM_H_ */ |
| 62 | |