drivers/staging/mei/hw.h

   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_HW_TYPES_H_
  18 #define _MEI_HW_TYPES_H_
  19
  20 #include <linux/uuid.h>
  21
  22 /*
  23  * Timeouts
  24  */
  25 #define MEI_INTEROP_TIMEOUT    (HZ * 7)
  26 #define MEI_CONNECT_TIMEOUT             3       /* at least 2 seconds */
  27
  28 #define CONNECT_TIMEOUT        15       /* HPS definition */
  29 #define INIT_CLIENTS_TIMEOUT   15       /* HPS definition */
  30
  31 #define IAMTHIF_STALL_TIMER             12      /* seconds */
  32 #define IAMTHIF_READ_TIMER              10000   /* ms */
  33
  34 /*
  35  * Internal Clients Number
  36  */
  37 #define MEI_WD_HOST_CLIENT_ID          1
  38 #define MEI_IAMTHIF_HOST_CLIENT_ID     2
  39
  40 /*
  41  * MEI device IDs
  42  */
  43 #define    MEI_DEV_ID_82946GZ   0x2974  /* 82946GZ/GL */
  44 #define    MEI_DEV_ID_82G35     0x2984  /* 82G35 Express */
  45 #define    MEI_DEV_ID_82Q965    0x2994  /* 82Q963/Q965 */
  46 #define    MEI_DEV_ID_82G965    0x29A4  /* 82P965/G965 */
  47
  48 #define    MEI_DEV_ID_82GM965   0x2A04  /* Mobile PM965/GM965 */
  49 #define    MEI_DEV_ID_82GME965  0x2A14  /* Mobile GME965/GLE960 */
  50
  51 #define    MEI_DEV_ID_ICH9_82Q35 0x29B4  /* 82Q35 Express */
  52 #define    MEI_DEV_ID_ICH9_82G33 0x29C4  /* 82G33/G31/P35/P31 Express */
  53 #define    MEI_DEV_ID_ICH9_82Q33 0x29D4  /* 82Q33 Express */
  54 #define    MEI_DEV_ID_ICH9_82X38 0x29E4  /* 82X38/X48 Express */
  55 #define    MEI_DEV_ID_ICH9_3200  0x29F4  /* 3200/3210 Server */
  56
  57 #define    MEI_DEV_ID_ICH9_6    0x28B4  /* Bearlake */
  58 #define    MEI_DEV_ID_ICH9_7    0x28C4  /* Bearlake */
  59 #define    MEI_DEV_ID_ICH9_8    0x28D4  /* Bearlake */
  60 #define    MEI_DEV_ID_ICH9_9    0x28E4  /* Bearlake */
  61 #define    MEI_DEV_ID_ICH9_10   0x28F4  /* Bearlake */
  62
  63 #define    MEI_DEV_ID_ICH9M_1   0x2A44  /* Cantiga */
  64 #define    MEI_DEV_ID_ICH9M_2   0x2A54  /* Cantiga */
  65 #define    MEI_DEV_ID_ICH9M_3   0x2A64  /* Cantiga */
  66 #define    MEI_DEV_ID_ICH9M_4   0x2A74  /* Cantiga */
  67
  68 #define    MEI_DEV_ID_ICH10_1   0x2E04  /* Eaglelake */
  69 #define    MEI_DEV_ID_ICH10_2   0x2E14  /* Eaglelake */
  70 #define    MEI_DEV_ID_ICH10_3   0x2E24  /* Eaglelake */
  71 #define    MEI_DEV_ID_ICH10_4   0x2E34  /* Eaglelake */
  72
  73 #define    MEI_DEV_ID_IBXPK_1   0x3B64  /* Calpella */
  74 #define    MEI_DEV_ID_IBXPK_2   0x3B65  /* Calpella */
  75
  76 #define    MEI_DEV_ID_CPT_1     0x1C3A    /* Cougerpoint */
  77 #define    MEI_DEV_ID_PBG_1     0x1D3A    /* PBG */
  78
  79 #define    MEI_DEV_ID_PPT_1     0x1E3A    /* Pantherpoint PPT */
  80 #define    MEI_DEV_ID_PPT_2     0x1CBA    /* Pantherpoint PPT */
  81 #define    MEI_DEV_ID_PPT_3     0x1DBA    /* Pantherpoint PPT */
  82
  83
  84 /*
  85  * MEI HW Section
  86  */
  87
  88 /* MEI registers */
  89 /* H_CB_WW - Host Circular Buffer (CB) Write Window register */
  90 #define H_CB_WW    0
  91 /* H_CSR - Host Control Status register */
  92 #define H_CSR      4
  93 /* ME_CB_RW - ME Circular Buffer Read Window register (read only) */
  94 #define ME_CB_RW   8
  95 /* ME_CSR_HA - ME Control Status Host Access register (read only) */
  96 #define ME_CSR_HA  0xC
  97
  98
  99 /* register bits of H_CSR (Host Control Status register) */
 100 /* Host Circular Buffer Depth - maximum number of 32-bit entries in CB */
 101 #define H_CBD             0xFF000000
 102 /* Host Circular Buffer Write Pointer */
 103 #define H_CBWP            0x00FF0000
 104 /* Host Circular Buffer Read Pointer */
 105 #define H_CBRP            0x0000FF00
 106 /* Host Reset */
 107 #define H_RST             0x00000010
 108 /* Host Ready */
 109 #define H_RDY             0x00000008
 110 /* Host Interrupt Generate */
 111 #define H_IG              0x00000004
 112 /* Host Interrupt Status */
 113 #define H_IS              0x00000002
 114 /* Host Interrupt Enable */
 115 #define H_IE              0x00000001
 116
 117
 118 /* register bits of ME_CSR_HA (ME Control Status Host Access register) */
 119 /* ME CB (Circular Buffer) Depth HRA (Host Read Access) - host read only
 120 access to ME_CBD */
 121 #define ME_CBD_HRA        0xFF000000
 122 /* ME CB Write Pointer HRA - host read only access to ME_CBWP */
 123 #define ME_CBWP_HRA       0x00FF0000
 124 /* ME CB Read Pointer HRA - host read only access to ME_CBRP */
 125 #define ME_CBRP_HRA       0x0000FF00
 126 /* ME Reset HRA - host read only access to ME_RST */
 127 #define ME_RST_HRA        0x00000010
 128 /* ME Ready HRA - host read only access to ME_RDY */
 129 #define ME_RDY_HRA        0x00000008
 130 /* ME Interrupt Generate HRA - host read only access to ME_IG */
 131 #define ME_IG_HRA         0x00000004
 132 /* ME Interrupt Status HRA - host read only access to ME_IS */
 133 #define ME_IS_HRA         0x00000002
 134 /* ME Interrupt Enable HRA - host read only access to ME_IE */
 135 #define ME_IE_HRA         0x00000001
 136
 137 /*
 138  * MEI Version
 139  */
 140 #define HBM_MINOR_VERSION                   0
 141 #define HBM_MAJOR_VERSION                   1
 142 #define HBM_TIMEOUT                         1   /* 1 second */
 143
 144 /*
 145  * MEI Bus Message Command IDs
 146  */
 147 #define HOST_START_REQ_CMD                  0x01
 148 #define HOST_START_RES_CMD                  0x81
 149
 150 #define HOST_STOP_REQ_CMD                   0x02
 151 #define HOST_STOP_RES_CMD                   0x82
 152
 153 #define ME_STOP_REQ_CMD                     0x03
 154
 155 #define HOST_ENUM_REQ_CMD                   0x04
 156 #define HOST_ENUM_RES_CMD                   0x84
 157
 158 #define HOST_CLIENT_PROPERTIES_REQ_CMD      0x05
 159 #define HOST_CLIENT_PROPERTIES_RES_CMD      0x85
 160
 161 #define CLIENT_CONNECT_REQ_CMD              0x06
 162 #define CLIENT_CONNECT_RES_CMD              0x86
 163
 164 #define CLIENT_DISCONNECT_REQ_CMD           0x07
 165 #define CLIENT_DISCONNECT_RES_CMD           0x87
 166
 167 #define MEI_FLOW_CONTROL_CMD               0x08
 168
 169 /*
 170  * MEI Stop Reason
 171  * used by hbm_host_stop_request.reason
 172  */
 173 enum mei_stop_reason_types {
 174         DRIVER_STOP_REQUEST = 0x00,
 175         DEVICE_D1_ENTRY = 0x01,
 176         DEVICE_D2_ENTRY = 0x02,
 177         DEVICE_D3_ENTRY = 0x03,
 178         SYSTEM_S1_ENTRY = 0x04,
 179         SYSTEM_S2_ENTRY = 0x05,
 180         SYSTEM_S3_ENTRY = 0x06,
 181         SYSTEM_S4_ENTRY = 0x07,
 182         SYSTEM_S5_ENTRY = 0x08
 183 };
 184
 185 /*
 186  * Client Connect Status
 187  * used by hbm_client_connect_response.status
 188  */
 189 enum client_connect_status_types {
 190         CCS_SUCCESS = 0x00,
 191         CCS_NOT_FOUND = 0x01,
 192         CCS_ALREADY_STARTED = 0x02,
 193         CCS_OUT_OF_RESOURCES = 0x03,
 194         CCS_MESSAGE_SMALL = 0x04
 195 };
 196
 197 /*
 198  * Client Disconnect Status
 199  */
 200 enum client_disconnect_status_types {
 201         CDS_SUCCESS = 0x00
 202 };
 203
 204 /*
 205  *  MEI BUS Interface Section
 206  */
 207 struct mei_msg_hdr {
 208         u32 me_addr:8;
 209         u32 host_addr:8;
 210         u32 length:9;
 211         u32 reserved:6;
 212         u32 msg_complete:1;
 213 } __packed;
 214
 215
 216 struct hbm_cmd {
 217         u8 cmd:7;
 218         u8 is_response:1;
 219 } __packed;
 220
 221
 222 struct mei_bus_message {
 223         struct hbm_cmd cmd;
 224         u8 command_specific_data[];
 225 } __packed;
 226
 227 struct hbm_version {
 228         u8 minor_version;
 229         u8 major_version;
 230 } __packed;
 231
 232 struct hbm_host_version_request {
 233         struct hbm_cmd cmd;
 234         u8 reserved;
 235         struct hbm_version host_version;
 236 } __packed;
 237
 238 struct hbm_host_version_response {
 239         struct hbm_cmd cmd;
 240         int host_version_supported;
 241         struct hbm_version me_max_version;
 242 } __packed;
 243
 244 struct hbm_host_stop_request {
 245         struct hbm_cmd cmd;
 246         u8 reason;
 247         u8 reserved[2];
 248 } __packed;
 249
 250 struct hbm_host_stop_response {
 251         struct hbm_cmd cmd;
 252         u8 reserved[3];
 253 } __packed;
 254
 255 struct hbm_me_stop_request {
 256         struct hbm_cmd cmd;
 257         u8 reason;
 258         u8 reserved[2];
 259 } __packed;
 260
 261 struct hbm_host_enum_request {
 262         struct hbm_cmd cmd;
 263         u8 reserved[3];
 264 } __packed;
 265
 266 struct hbm_host_enum_response {
 267         struct hbm_cmd cmd;
 268         u8 reserved[3];
 269         u8 valid_addresses[32];
 270 } __packed;
 271
 272 struct mei_client_properties {
 273         uuid_le protocol_name;
 274         u8 protocol_version;
 275         u8 max_number_of_connections;
 276         u8 fixed_address;
 277         u8 single_recv_buf;
 278         u32 max_msg_length;
 279 } __packed;
 280
 281 struct hbm_props_request {
 282         struct hbm_cmd cmd;
 283         u8 address;
 284         u8 reserved[2];
 285 } __packed;
 286
 287
 288 struct hbm_props_response {
 289         struct hbm_cmd cmd;
 290         u8 address;
 291         u8 status;
 292         u8 reserved[1];
 293         struct mei_client_properties client_properties;
 294 } __packed;
 295
 296 struct hbm_client_connect_request {
 297         struct hbm_cmd cmd;
 298         u8 me_addr;
 299         u8 host_addr;
 300         u8 reserved;
 301 } __packed;
 302
 303 struct hbm_client_connect_response {
 304         struct hbm_cmd cmd;
 305         u8 me_addr;
 306         u8 host_addr;
 307         u8 status;
 308 } __packed;
 309
 310 struct hbm_client_disconnect_request {
 311         struct hbm_cmd cmd;
 312         u8 me_addr;
 313         u8 host_addr;
 314         u8 reserved[1];
 315 } __packed;
 316
 317 #define MEI_FC_MESSAGE_RESERVED_LENGTH           5
 318
 319 struct hbm_flow_control {
 320         struct hbm_cmd cmd;
 321         u8 me_addr;
 322         u8 host_addr;
 323         u8 reserved[MEI_FC_MESSAGE_RESERVED_LENGTH];
 324 } __packed;
 325
 326 struct mei_me_client {
 327         struct mei_client_properties props;
 328         u8 client_id;
 329         u8 mei_flow_ctrl_creds;
 330 } __packed;
 331
 332
 333 #endif