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9b0d5efc42
1. Rename init_clients_state to hbm_state and use MEI_HBM_ prefix for HBM states 2. Remove recvd_msg and use hbm state for synchronizing hbm protocol has successful start. We can wake up the hbm event from start response handler and remove the hack from the interrupt thread 3. mei_hbm_start_wait function encapsulate start completion waiting Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
/*
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*
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* Intel Management Engine Interface (Intel MEI) Linux driver
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* Copyright (c) 2003-2012, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*/
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#ifndef _MEI_HBM_H_
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#define _MEI_HBM_H_
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struct mei_device;
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struct mei_msg_hdr;
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struct mei_cl;
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/**
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* enum mei_hbm_state - host bus message protocol state
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*
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* @MEI_HBM_IDLE : protocol not started
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* @MEI_HBM_START : start request message was sent
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* @MEI_HBM_ENUM_CLIENTS : enumeration request was sent
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* @MEI_HBM_CLIENT_PROPERTIES : acquiring clients properties
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*/
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enum mei_hbm_state {
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MEI_HBM_IDLE = 0,
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MEI_HBM_START,
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MEI_HBM_ENUM_CLIENTS,
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MEI_HBM_CLIENT_PROPERTIES,
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MEI_HBM_STARTED,
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MEI_HBM_STOP,
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};
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void mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr);
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static inline void mei_hbm_hdr(struct mei_msg_hdr *hdr, size_t length)
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{
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hdr->host_addr = 0;
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hdr->me_addr = 0;
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hdr->length = length;
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hdr->msg_complete = 1;
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hdr->reserved = 0;
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}
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int mei_hbm_start_req(struct mei_device *dev);
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int mei_hbm_start_wait(struct mei_device *dev);
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int mei_hbm_cl_flow_control_req(struct mei_device *dev, struct mei_cl *cl);
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int mei_hbm_cl_disconnect_req(struct mei_device *dev, struct mei_cl *cl);
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int mei_hbm_cl_connect_req(struct mei_device *dev, struct mei_cl *cl);
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#endif /* _MEI_HBM_H_ */
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