| /* |
| * |
| * Intel Management Engine Interface (Intel MEI) Linux driver |
| * Copyright (c) 2003-2012, Intel Corporation. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2, as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| */ |
| |
| #ifndef _MEI_HW_TYPES_H_ |
| #define _MEI_HW_TYPES_H_ |
| |
| #include <linux/uuid.h> |
| |
| /* |
| * Timeouts in Seconds |
| */ |
| #define MEI_HW_READY_TIMEOUT 2 /* Timeout on ready message */ |
| #define MEI_CONNECT_TIMEOUT 3 /* HPS: at least 2 seconds */ |
| |
| #define MEI_CL_CONNECT_TIMEOUT 15 /* HPS: Client Connect Timeout */ |
| #define MEI_CLIENTS_INIT_TIMEOUT 15 /* HPS: Clients Enumeration Timeout */ |
| |
| #define MEI_IAMTHIF_STALL_TIMER 12 /* HPS */ |
| #define MEI_IAMTHIF_READ_TIMER 10 /* HPS */ |
| |
| #define MEI_PGI_TIMEOUT 1 /* PG Isolation time response 1 sec */ |
| #define MEI_HBM_TIMEOUT 1 /* 1 second */ |
| |
| /* |
| * MEI Version |
| */ |
| #define HBM_MINOR_VERSION 1 |
| #define HBM_MAJOR_VERSION 1 |
| |
| /* |
| * MEI version with PGI support |
| */ |
| #define HBM_MINOR_VERSION_PGI 1 |
| #define HBM_MAJOR_VERSION_PGI 1 |
| |
| /* Host bus message command opcode */ |
| #define MEI_HBM_CMD_OP_MSK 0x7f |
| /* Host bus message command RESPONSE */ |
| #define MEI_HBM_CMD_RES_MSK 0x80 |
| |
| /* |
| * MEI Bus Message Command IDs |
| */ |
| #define HOST_START_REQ_CMD 0x01 |
| #define HOST_START_RES_CMD 0x81 |
| |
| #define HOST_STOP_REQ_CMD 0x02 |
| #define HOST_STOP_RES_CMD 0x82 |
| |
| #define ME_STOP_REQ_CMD 0x03 |
| |
| #define HOST_ENUM_REQ_CMD 0x04 |
| #define HOST_ENUM_RES_CMD 0x84 |
| |
| #define HOST_CLIENT_PROPERTIES_REQ_CMD 0x05 |
| #define HOST_CLIENT_PROPERTIES_RES_CMD 0x85 |
| |
| #define CLIENT_CONNECT_REQ_CMD 0x06 |
| #define CLIENT_CONNECT_RES_CMD 0x86 |
| |
| #define CLIENT_DISCONNECT_REQ_CMD 0x07 |
| #define CLIENT_DISCONNECT_RES_CMD 0x87 |
| |
| #define MEI_FLOW_CONTROL_CMD 0x08 |
| |
| #define MEI_PG_ISOLATION_ENTRY_REQ_CMD 0x0a |
| #define MEI_PG_ISOLATION_ENTRY_RES_CMD 0x8a |
| #define MEI_PG_ISOLATION_EXIT_REQ_CMD 0x0b |
| #define MEI_PG_ISOLATION_EXIT_RES_CMD 0x8b |
| |
| /* |
| * MEI Stop Reason |
| * used by hbm_host_stop_request.reason |
| */ |
| enum mei_stop_reason_types { |
| DRIVER_STOP_REQUEST = 0x00, |
| DEVICE_D1_ENTRY = 0x01, |
| DEVICE_D2_ENTRY = 0x02, |
| DEVICE_D3_ENTRY = 0x03, |
| SYSTEM_S1_ENTRY = 0x04, |
| SYSTEM_S2_ENTRY = 0x05, |
| SYSTEM_S3_ENTRY = 0x06, |
| SYSTEM_S4_ENTRY = 0x07, |
| SYSTEM_S5_ENTRY = 0x08 |
| }; |
| |
| |
| /** |
| * enum mei_hbm_status - mei host bus messages return values |
| * |
| * @MEI_HBMS_SUCCESS : status success |
| * @MEI_HBMS_CLIENT_NOT_FOUND : client not found |
| * @MEI_HBMS_ALREADY_EXISTS : connection already established |
| * @MEI_HBMS_REJECTED : connection is rejected |
| * @MEI_HBMS_INVALID_PARAMETER : invalid parameter |
| * @MEI_HBMS_NOT_ALLOWED : operation not allowed |
| * @MEI_HBMS_ALREADY_STARTED : system is already started |
| * @MEI_HBMS_NOT_STARTED : system not started |
| * |
| * @MEI_HBMS_MAX : sentinel |
| */ |
| enum mei_hbm_status { |
| MEI_HBMS_SUCCESS = 0, |
| MEI_HBMS_CLIENT_NOT_FOUND = 1, |
| MEI_HBMS_ALREADY_EXISTS = 2, |
| MEI_HBMS_REJECTED = 3, |
| MEI_HBMS_INVALID_PARAMETER = 4, |
| MEI_HBMS_NOT_ALLOWED = 5, |
| MEI_HBMS_ALREADY_STARTED = 6, |
| MEI_HBMS_NOT_STARTED = 7, |
| |
| MEI_HBMS_MAX |
| }; |
| |
| |
| /* |
| * Client Connect Status |
| * used by hbm_client_connect_response.status |
| */ |
| enum mei_cl_connect_status { |
| MEI_CL_CONN_SUCCESS = MEI_HBMS_SUCCESS, |
| MEI_CL_CONN_NOT_FOUND = MEI_HBMS_CLIENT_NOT_FOUND, |
| MEI_CL_CONN_ALREADY_STARTED = MEI_HBMS_ALREADY_EXISTS, |
| MEI_CL_CONN_OUT_OF_RESOURCES = MEI_HBMS_REJECTED, |
| MEI_CL_CONN_MESSAGE_SMALL = MEI_HBMS_INVALID_PARAMETER, |
| }; |
| |
| /* |
| * Client Disconnect Status |
| */ |
| enum mei_cl_disconnect_status { |
| MEI_CL_DISCONN_SUCCESS = MEI_HBMS_SUCCESS |
| }; |
| |
| /* |
| * MEI BUS Interface Section |
| */ |
| struct mei_msg_hdr { |
| u32 me_addr:8; |
| u32 host_addr:8; |
| u32 length:9; |
| u32 reserved:5; |
| u32 internal:1; |
| u32 msg_complete:1; |
| } __packed; |
| |
| |
| struct mei_bus_message { |
| u8 hbm_cmd; |
| u8 data[0]; |
| } __packed; |
| |
| /** |
| * struct hbm_cl_cmd - client specific host bus command |
| * CONNECT, DISCONNECT, and FlOW CONTROL |
| * |
| * @hbm_cmd: bus message command header |
| * @me_addr: address of the client in ME |
| * @host_addr: address of the client in the driver |
| * @data: generic data |
| */ |
| struct mei_hbm_cl_cmd { |
| u8 hbm_cmd; |
| u8 me_addr; |
| u8 host_addr; |
| u8 data; |
| }; |
| |
| struct hbm_version { |
| u8 minor_version; |
| u8 major_version; |
| } __packed; |
| |
| struct hbm_host_version_request { |
| u8 hbm_cmd; |
| u8 reserved; |
| struct hbm_version host_version; |
| } __packed; |
| |
| struct hbm_host_version_response { |
| u8 hbm_cmd; |
| u8 host_version_supported; |
| struct hbm_version me_max_version; |
| } __packed; |
| |
| struct hbm_host_stop_request { |
| u8 hbm_cmd; |
| u8 reason; |
| u8 reserved[2]; |
| } __packed; |
| |
| struct hbm_host_stop_response { |
| u8 hbm_cmd; |
| u8 reserved[3]; |
| } __packed; |
| |
| struct hbm_me_stop_request { |
| u8 hbm_cmd; |
| u8 reason; |
| u8 reserved[2]; |
| } __packed; |
| |
| struct hbm_host_enum_request { |
| u8 hbm_cmd; |
| u8 reserved[3]; |
| } __packed; |
| |
| struct hbm_host_enum_response { |
| u8 hbm_cmd; |
| u8 reserved[3]; |
| u8 valid_addresses[32]; |
| } __packed; |
| |
| struct mei_client_properties { |
| uuid_le protocol_name; |
| u8 protocol_version; |
| u8 max_number_of_connections; |
| u8 fixed_address; |
| u8 single_recv_buf; |
| u32 max_msg_length; |
| } __packed; |
| |
| struct hbm_props_request { |
| u8 hbm_cmd; |
| u8 me_addr; |
| u8 reserved[2]; |
| } __packed; |
| |
| struct hbm_props_response { |
| u8 hbm_cmd; |
| u8 me_addr; |
| u8 status; |
| u8 reserved[1]; |
| struct mei_client_properties client_properties; |
| } __packed; |
| |
| /** |
| * struct hbm_power_gate - power gate request/response |
| * |
| * @hbm_cmd: bus message command header |
| * @reserved: reserved |
| */ |
| struct hbm_power_gate { |
| u8 hbm_cmd; |
| u8 reserved[3]; |
| } __packed; |
| |
| /** |
| * struct hbm_client_connect_request - connect/disconnect request |
| * |
| * @hbm_cmd: bus message command header |
| * @me_addr: address of the client in ME |
| * @host_addr: address of the client in the driver |
| * @reserved: reserved |
| */ |
| struct hbm_client_connect_request { |
| u8 hbm_cmd; |
| u8 me_addr; |
| u8 host_addr; |
| u8 reserved; |
| } __packed; |
| |
| /** |
| * struct hbm_client_connect_response - connect/disconnect response |
| * |
| * @hbm_cmd: bus message command header |
| * @me_addr: address of the client in ME |
| * @host_addr: address of the client in the driver |
| * @status: status of the request |
| */ |
| struct hbm_client_connect_response { |
| u8 hbm_cmd; |
| u8 me_addr; |
| u8 host_addr; |
| u8 status; |
| } __packed; |
| |
| |
| #define MEI_FC_MESSAGE_RESERVED_LENGTH 5 |
| |
| struct hbm_flow_control { |
| u8 hbm_cmd; |
| u8 me_addr; |
| u8 host_addr; |
| u8 reserved[MEI_FC_MESSAGE_RESERVED_LENGTH]; |
| } __packed; |
| |
| |
| #endif |
