214 lines
6.6 KiB
C
214 lines
6.6 KiB
C
/*-
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* This file is provided under a dual BSD/GPLv2 license. When using or
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* redistributing this file, you may do so under either license.
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*
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* GPL LICENSE SUMMARY
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.GPL.
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*
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* BSD LICENSE
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*
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* Copyright(c) 2008 - 2011 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SCI_BASE_PHY_H_
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#define _SCI_BASE_PHY_H_
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/**
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* @file
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*
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* @brief This file contains all of the structures, constants, and methods
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* common to all phy object definitions.
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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#include <dev/isci/scil/sci_base_logger.h>
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#include <dev/isci/scil/sci_base_state_machine.h>
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#include <dev/isci/scil/sci_base_state_machine_logger.h>
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/**
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* @enum SCI_BASE_PHY_STATES
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*
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* @brief This enumeration depicts the standard states common to all phy
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* state machine implementations.
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*/
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typedef enum _SCI_BASE_PHY_STATES
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{
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/**
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* Simply the initial state for the base domain state machine.
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*/
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SCI_BASE_PHY_STATE_INITIAL,
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/**
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* This state indicates that the phy has successfully been stopped.
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* In this state no new IO operations are permitted on this phy.
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* This state is entered from the INITIAL state.
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* This state is entered from the STARTING state.
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* This state is entered from the READY state.
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* This state is entered from the RESETTING state.
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*/
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SCI_BASE_PHY_STATE_STOPPED,
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/**
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* This state indicates that the phy is in the process of becomming
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* ready. In this state no new IO operations are permitted on this phy.
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* This state is entered from the STOPPED state.
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* This state is entered from the READY state.
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* This state is entered from the RESETTING state.
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*/
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SCI_BASE_PHY_STATE_STARTING,
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/**
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* This state indicates the phy is now ready. Thus, the user
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* is able to perform IO operations utilizing this phy as long as it
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* is currently part of a valid port.
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* This state is entered from the STARTING state.
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*/
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SCI_BASE_PHY_STATE_READY,
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/**
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* This state indicates that the phy is in the process of being reset.
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* In this state no new IO operations are permitted on this phy.
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* This state is entered from the READY state.
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*/
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SCI_BASE_PHY_STATE_RESETTING,
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/**
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* Simply the final state for the base phy state machine.
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*/
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SCI_BASE_PHY_STATE_FINAL,
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SCI_BASE_PHY_MAX_STATES
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} SCI_BASE_PHY_STATES;
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/**
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* @struct SCI_BASE_PHY
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*
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* @brief This structure defines all of the fields common to PHY objects.
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*/
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typedef struct SCI_BASE_PHY
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{
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/**
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* This field depicts the parent object (SCI_BASE_OBJECT) for the phy.
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*/
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SCI_BASE_OBJECT_T parent;
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/**
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* This field contains the information for the base phy state machine.
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*/
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SCI_BASE_STATE_MACHINE_T state_machine;
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#ifdef SCI_LOGGING
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SCI_BASE_STATE_MACHINE_LOGGER_T state_machine_logger;
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#endif // SCI_LOGGING
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} SCI_BASE_PHY_T;
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typedef SCI_STATUS (*SCI_BASE_PHY_HANDLER_T)(
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SCI_BASE_PHY_T *
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);
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/**
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* @struct SCI_BASE_PHY_STATE_HANDLER
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*
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* @brief This structure contains all of the state handler methods common to
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* base phy state machines. Handler methods provide the ability
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* to change the behavior for user requests or transitions depending
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* on the state the machine is in.
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*/
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typedef struct SCI_BASE_PHY_STATE_HANDLER
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{
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/**
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* The start_handler specifies the method invoked when there is an
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* attempt to start a phy.
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*/
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SCI_BASE_PHY_HANDLER_T start_handler;
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/**
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* The stop_handler specifies the method invoked when there is an
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* attempt to stop a phy.
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*/
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SCI_BASE_PHY_HANDLER_T stop_handler;
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/**
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* The reset_handler specifies the method invoked when there is an
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* attempt to reset a phy.
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*/
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SCI_BASE_PHY_HANDLER_T reset_handler;
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/**
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* The destruct_handler specifies the method invoked when attempting to
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* destruct a phy.
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*/
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SCI_BASE_PHY_HANDLER_T destruct_handler;
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} SCI_BASE_PHY_STATE_HANDLER_T;
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/**
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* @brief Construct the base phy
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*
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* @param[in] this_phy This parameter specifies the base phy to be
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* constructed.
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* @param[in] logger This parameter specifies the logger associated with
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* this base phy object.
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* @param[in] state_table This parameter specifies the table of state
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* definitions to be utilized for the phy state machine.
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*
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* @return none
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*/
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void sci_base_phy_construct(
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SCI_BASE_PHY_T * this_phy,
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SCI_BASE_LOGGER_T * logger,
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SCI_BASE_STATE_T * state_table
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);
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#ifdef __cplusplus
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}
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#endif // __cplusplus
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#endif // _SCI_BASE_PHY_H_
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