/* * * Intel Management Engine Interface (Intel MEI) Linux driver * Copyright (c) 2003-2011, 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 /* * Timeouts */ #define MEI_INTEROP_TIMEOUT (HZ * 7) #define MEI_CONNECT_TIMEOUT 3 /* at least 2 seconds */ #define CONNECT_TIMEOUT 15 /* HPS definition */ #define INIT_CLIENTS_TIMEOUT 15 /* HPS definition */ #define IAMTHIF_STALL_TIMER 12 /* seconds */ #define IAMTHIF_READ_TIMER 10000 /* ms */ /* * Internal Clients Number */ #define MEI_WD_HOST_CLIENT_ID 1 #define MEI_IAMTHIF_HOST_CLIENT_ID 2 /* * MEI device IDs */ #define MEI_DEV_ID_82946GZ 0x2974 /* 82946GZ/GL */ #define MEI_DEV_ID_82G35 0x2984 /* 82G35 Express */ #define MEI_DEV_ID_82Q965 0x2994 /* 82Q963/Q965 */ #define MEI_DEV_ID_82G965 0x29A4 /* 82P965/G965 */ #define MEI_DEV_ID_82GM965 0x2A04 /* Mobile PM965/GM965 */ #define MEI_DEV_ID_82GME965 0x2A14 /* Mobile GME965/GLE960 */ #define MEI_DEV_ID_ICH9_82Q35 0x29B4 /* 82Q35 Express */ #define MEI_DEV_ID_ICH9_82G33 0x29C4 /* 82G33/G31/P35/P31 Express */ #define MEI_DEV_ID_ICH9_82Q33 0x29D4 /* 82Q33 Express */ #define MEI_DEV_ID_ICH9_82X38 0x29E4 /* 82X38/X48 Express */ #define MEI_DEV_ID_ICH9_3200 0x29F4 /* 3200/3210 Server */ #define MEI_DEV_ID_ICH9_6 0x28B4 /* Bearlake */ #define MEI_DEV_ID_ICH9_7 0x28C4 /* Bearlake */ #define MEI_DEV_ID_ICH9_8 0x28D4 /* Bearlake */ #define MEI_DEV_ID_ICH9_9 0x28E4 /* Bearlake */ #define MEI_DEV_ID_ICH9_10 0x28F4 /* Bearlake */ #define MEI_DEV_ID_ICH9M_1 0x2A44 /* Cantiga */ #define MEI_DEV_ID_ICH9M_2 0x2A54 /* Cantiga */ #define MEI_DEV_ID_ICH9M_3 0x2A64 /* Cantiga */ #define MEI_DEV_ID_ICH9M_4 0x2A74 /* Cantiga */ #define MEI_DEV_ID_ICH10_1 0x2E04 /* Eaglelake */ #define MEI_DEV_ID_ICH10_2 0x2E14 /* Eaglelake */ #define MEI_DEV_ID_ICH10_3 0x2E24 /* Eaglelake */ #define MEI_DEV_ID_ICH10_4 0x2E34 /* Eaglelake */ #define MEI_DEV_ID_IBXPK_1 0x3B64 /* Calpella */ #define MEI_DEV_ID_IBXPK_2 0x3B65 /* Calpella */ #define MEI_DEV_ID_CPT_1 0x1C3A /* Cougerpoint */ #define MEI_DEV_ID_PBG_1 0x1D3A /* PBG */ #define MEI_DEV_ID_PPT_1 0x1E3A /* Pantherpoint PPT */ #define MEI_DEV_ID_PPT_2 0x1CBA /* Pantherpoint PPT */ #define MEI_DEV_ID_PPT_3 0x1DBA /* Pantherpoint PPT */ /* * MEI HW Section */ /* MEI registers */ /* H_CB_WW - Host Circular Buffer (CB) Write Window register */ #define H_CB_WW 0 /* H_CSR - Host Control Status register */ #define H_CSR 4 /* ME_CB_RW - ME Circular Buffer Read Window register (read only) */ #define ME_CB_RW 8 /* ME_CSR_HA - ME Control Status Host Access register (read only) */ #define ME_CSR_HA 0xC /* register bits of H_CSR (Host Control Status register) */ /* Host Circular Buffer Depth - maximum number of 32-bit entries in CB */ #define H_CBD 0xFF000000 /* Host Circular Buffer Write Pointer */ #define H_CBWP 0x00FF0000 /* Host Circular Buffer Read Pointer */ #define H_CBRP 0x0000FF00 /* Host Reset */ #define H_RST 0x00000010 /* Host Ready */ #define H_RDY 0x00000008 /* Host Interrupt Generate */ #define H_IG 0x00000004 /* Host Interrupt Status */ #define H_IS 0x00000002 /* Host Interrupt Enable */ #define H_IE 0x00000001 /* register bits of ME_CSR_HA (ME Control Status Host Access register) */ /* ME CB (Circular Buffer) Depth HRA (Host Read Access) - host read only access to ME_CBD */ #define ME_CBD_HRA 0xFF000000 /* ME CB Write Pointer HRA - host read only access to ME_CBWP */ #define ME_CBWP_HRA 0x00FF0000 /* ME CB Read Pointer HRA - host read only access to ME_CBRP */ #define ME_CBRP_HRA 0x0000FF00 /* ME Reset HRA - host read only access to ME_RST */ #define ME_RST_HRA 0x00000010 /* ME Ready HRA - host read only access to ME_RDY */ #define ME_RDY_HRA 0x00000008 /* ME Interrupt Generate HRA - host read only access to ME_IG */ #define ME_IG_HRA 0x00000004 /* ME Interrupt Status HRA - host read only access to ME_IS */ #define ME_IS_HRA 0x00000002 /* ME Interrupt Enable HRA - host read only access to ME_IE */ #define ME_IE_HRA 0x00000001 /* * MEI Version */ #define HBM_MINOR_VERSION 0 #define HBM_MAJOR_VERSION 1 #define HBM_TIMEOUT 1 /* 1 second */ /* * 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 /* * 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 }; /* * Client Connect Status * used by hbm_client_connect_response.status */ enum client_connect_status_types { CCS_SUCCESS = 0x00, CCS_NOT_FOUND = 0x01, CCS_ALREADY_STARTED = 0x02, CCS_OUT_OF_RESOURCES = 0x03, CCS_MESSAGE_SMALL = 0x04 }; /* * Client Disconnect Status */ enum client_disconnect_status_types { CDS_SUCCESS = 0x00 }; /* * MEI BUS Interface Section */ struct mei_msg_hdr { u32 me_addr:8; u32 host_addr:8; u32 length:9; u32 reserved:6; u32 msg_complete:1; } __packed; struct hbm_cmd { u8 cmd:7; u8 is_response:1; } __packed; struct mei_bus_message { struct hbm_cmd cmd; u8 command_specific_data[]; } __packed; struct hbm_version { u8 minor_version; u8 major_version; } __packed; struct hbm_host_version_request { struct hbm_cmd cmd; u8 reserved; struct hbm_version host_version; } __packed; struct hbm_host_version_response { struct hbm_cmd cmd; int host_version_supported; struct hbm_version me_max_version; } __packed; struct hbm_host_stop_request { struct hbm_cmd cmd; u8 reason; u8 reserved[2]; } __packed; struct hbm_host_stop_response { struct hbm_cmd cmd; u8 reserved[3]; } __packed; struct hbm_me_stop_request { struct hbm_cmd cmd; u8 reason; u8 reserved[2]; } __packed; struct hbm_host_enum_request { struct hbm_cmd cmd; u8 reserved[3]; } __packed; struct hbm_host_enum_response { struct hbm_cmd 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 { struct hbm_cmd cmd; u8 address; u8 reserved[2]; } __packed; struct hbm_props_response { struct hbm_cmd cmd; u8 address; u8 status; u8 reserved[1]; struct mei_client_properties client_properties; } __packed; struct hbm_client_connect_request { struct hbm_cmd cmd; u8 me_addr; u8 host_addr; u8 reserved; } __packed; struct hbm_client_connect_response { struct hbm_cmd cmd; u8 me_addr; u8 host_addr; u8 status; } __packed; struct hbm_client_disconnect_request { struct hbm_cmd cmd; u8 me_addr; u8 host_addr; u8 reserved[1]; } __packed; #define MEI_FC_MESSAGE_RESERVED_LENGTH 5 struct hbm_flow_control { struct hbm_cmd cmd; u8 me_addr; u8 host_addr; u8 reserved[MEI_FC_MESSAGE_RESERVED_LENGTH]; } __packed; struct mei_me_client { struct mei_client_properties props; u8 client_id; u8 mei_flow_ctrl_creds; } __packed; #endif