/*
*
* 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
*/
#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 */
/* 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
/*
* 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 mei_bus_message {
u8 hbm_cmd;
u8 data[0];
} __packed;
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 address;
u8 reserved[2];
} __packed;
struct hbm_props_response {
u8 hbm_cmd;
u8 address;
u8 status;
u8 reserved[1];
struct mei_client_properties client_properties;
} __packed;
struct hbm_client_connect_request {
u8 hbm_cmd;
u8 me_addr;
u8 host_addr;
u8 reserved;
} __packed;
struct hbm_client_connect_response {
u8 hbm_cmd;
u8 me_addr;
u8 host_addr;
u8 status;
} __packed;
struct hbm_client_disconnect_request {
u8 hbm_cmd;
u8 me_addr;
u8 host_addr;
u8 reserved[1];
} __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;
struct mei_me_client {
struct mei_client_properties props;
u8 client_id;
u8 mei_flow_ctrl_creds;
} __packed;
#endif