10edb23fcSTomas Winkler /* 20edb23fcSTomas Winkler * 30edb23fcSTomas Winkler * Intel Management Engine Interface (Intel MEI) Linux driver 40edb23fcSTomas Winkler * Copyright (c) 2003-2012, Intel Corporation. 50edb23fcSTomas Winkler * 60edb23fcSTomas Winkler * This program is free software; you can redistribute it and/or modify it 70edb23fcSTomas Winkler * under the terms and conditions of the GNU General Public License, 80edb23fcSTomas Winkler * version 2, as published by the Free Software Foundation. 90edb23fcSTomas Winkler * 100edb23fcSTomas Winkler * This program is distributed in the hope it will be useful, but WITHOUT 110edb23fcSTomas Winkler * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 120edb23fcSTomas Winkler * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 130edb23fcSTomas Winkler * more details. 140edb23fcSTomas Winkler * 150edb23fcSTomas Winkler */ 160edb23fcSTomas Winkler 170edb23fcSTomas Winkler #ifndef _MEI_HBM_H_ 180edb23fcSTomas Winkler #define _MEI_HBM_H_ 190edb23fcSTomas Winkler 209b0d5efcSTomas Winkler struct mei_device; 219b0d5efcSTomas Winkler struct mei_msg_hdr; 229b0d5efcSTomas Winkler struct mei_cl; 239b0d5efcSTomas Winkler 249b0d5efcSTomas Winkler /** 259b0d5efcSTomas Winkler * enum mei_hbm_state - host bus message protocol state 269b0d5efcSTomas Winkler * 279b0d5efcSTomas Winkler * @MEI_HBM_IDLE : protocol not started 289b0d5efcSTomas Winkler * @MEI_HBM_START : start request message was sent 299b0d5efcSTomas Winkler * @MEI_HBM_ENUM_CLIENTS : enumeration request was sent 309b0d5efcSTomas Winkler * @MEI_HBM_CLIENT_PROPERTIES : acquiring clients properties 319b0d5efcSTomas Winkler */ 329b0d5efcSTomas Winkler enum mei_hbm_state { 339b0d5efcSTomas Winkler MEI_HBM_IDLE = 0, 349b0d5efcSTomas Winkler MEI_HBM_START, 359b0d5efcSTomas Winkler MEI_HBM_ENUM_CLIENTS, 369b0d5efcSTomas Winkler MEI_HBM_CLIENT_PROPERTIES, 379b0d5efcSTomas Winkler MEI_HBM_STARTED, 389b0d5efcSTomas Winkler MEI_HBM_STOP, 399b0d5efcSTomas Winkler }; 409b0d5efcSTomas Winkler 410edb23fcSTomas Winkler void mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr); 420edb23fcSTomas Winkler 430edb23fcSTomas Winkler static inline void mei_hbm_hdr(struct mei_msg_hdr *hdr, size_t length) 440edb23fcSTomas Winkler { 450edb23fcSTomas Winkler hdr->host_addr = 0; 460edb23fcSTomas Winkler hdr->me_addr = 0; 470edb23fcSTomas Winkler hdr->length = length; 480edb23fcSTomas Winkler hdr->msg_complete = 1; 490edb23fcSTomas Winkler hdr->reserved = 0; 500edb23fcSTomas Winkler } 510edb23fcSTomas Winkler 529b0d5efcSTomas Winkler int mei_hbm_start_req(struct mei_device *dev); 539b0d5efcSTomas Winkler int mei_hbm_start_wait(struct mei_device *dev); 540edb23fcSTomas Winkler int mei_hbm_cl_flow_control_req(struct mei_device *dev, struct mei_cl *cl); 550edb23fcSTomas Winkler int mei_hbm_cl_disconnect_req(struct mei_device *dev, struct mei_cl *cl); 560edb23fcSTomas Winkler int mei_hbm_cl_connect_req(struct mei_device *dev, struct mei_cl *cl); 57*2c9b48acSTomas Winkler bool mei_hbm_version_is_supported(struct mei_device *dev); 580edb23fcSTomas Winkler 590edb23fcSTomas Winkler #endif /* _MEI_HBM_H_ */ 600edb23fcSTomas Winkler 61