Commit 5a6003f2 authored by Oren Weil's avatar Oren Weil Committed by Greg Kroah-Hartman
Browse files

staging/mei: Hardware and MEI driver internal struct definition 



define the MEI protocol msg structs and
HW registers, also define the MEI internal status and struct

Signed-off-by: default avatarTomas Winkler <tomas.winkler@intel.com>
Signed-off-by: default avatarItzhak Tzeel-Krupp <itzhak.tzeel-krupp@intel.com>
Signed-off-by: default avatarOren Weil <oren.jer.weil@intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 91f01c6d

drivers/staging/mei/hw.h

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+333 −0
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/*

 *

 * 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 <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 */



/*

 * 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