mirror of
https://github.com/torvalds/linux.git
synced 2024-12-14 23:25:54 +00:00
104fb25f60
ipmi_si_sm.h was getting included in lots of places it didn't belong. Rework things a bit to remove all the dependencies, mostly just moving things between include files that were in the wrong place and removing bogus includes. Signed-off-by: Corey Minyard <cminyard@mvista.com>
105 lines
3.0 KiB
C
105 lines
3.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* ipmi_si_sm.h
|
|
*
|
|
* State machine interface for low-level IPMI system management
|
|
* interface state machines. This code is the interface between
|
|
* the ipmi_smi code (that handles the policy of a KCS, SMIC, or
|
|
* BT interface) and the actual low-level state machine.
|
|
*
|
|
* Author: MontaVista Software, Inc.
|
|
* Corey Minyard <minyard@mvista.com>
|
|
* source@mvista.com
|
|
*
|
|
* Copyright 2002 MontaVista Software Inc.
|
|
*/
|
|
|
|
#ifndef __IPMI_SI_SM_H__
|
|
#define __IPMI_SI_SM_H__
|
|
|
|
#include "ipmi_si.h"
|
|
|
|
/*
|
|
* This is defined by the state machines themselves, it is an opaque
|
|
* data type for them to use.
|
|
*/
|
|
struct si_sm_data;
|
|
|
|
/* Results of SMI events. */
|
|
enum si_sm_result {
|
|
SI_SM_CALL_WITHOUT_DELAY, /* Call the driver again immediately */
|
|
SI_SM_CALL_WITH_DELAY, /* Delay some before calling again. */
|
|
SI_SM_CALL_WITH_TICK_DELAY,/* Delay >=1 tick before calling again. */
|
|
SI_SM_TRANSACTION_COMPLETE, /* A transaction is finished. */
|
|
SI_SM_IDLE, /* The SM is in idle state. */
|
|
SI_SM_HOSED, /* The hardware violated the state machine. */
|
|
|
|
/*
|
|
* The hardware is asserting attn and the state machine is
|
|
* idle.
|
|
*/
|
|
SI_SM_ATTN
|
|
};
|
|
|
|
/* Handlers for the SMI state machine. */
|
|
struct si_sm_handlers {
|
|
/*
|
|
* Put the version number of the state machine here so the
|
|
* upper layer can print it.
|
|
*/
|
|
char *version;
|
|
|
|
/*
|
|
* Initialize the data and return the amount of I/O space to
|
|
* reserve for the space.
|
|
*/
|
|
unsigned int (*init_data)(struct si_sm_data *smi,
|
|
struct si_sm_io *io);
|
|
|
|
/*
|
|
* Start a new transaction in the state machine. This will
|
|
* return -2 if the state machine is not idle, -1 if the size
|
|
* is invalid (to large or too small), or 0 if the transaction
|
|
* is successfully completed.
|
|
*/
|
|
int (*start_transaction)(struct si_sm_data *smi,
|
|
unsigned char *data, unsigned int size);
|
|
|
|
/*
|
|
* Return the results after the transaction. This will return
|
|
* -1 if the buffer is too small, zero if no transaction is
|
|
* present, or the actual length of the result data.
|
|
*/
|
|
int (*get_result)(struct si_sm_data *smi,
|
|
unsigned char *data, unsigned int length);
|
|
|
|
/*
|
|
* Call this periodically (for a polled interface) or upon
|
|
* receiving an interrupt (for a interrupt-driven interface).
|
|
* If interrupt driven, you should probably poll this
|
|
* periodically when not in idle state. This should be called
|
|
* with the time that passed since the last call, if it is
|
|
* significant. Time is in microseconds.
|
|
*/
|
|
enum si_sm_result (*event)(struct si_sm_data *smi, long time);
|
|
|
|
/*
|
|
* Attempt to detect an SMI. Returns 0 on success or nonzero
|
|
* on failure.
|
|
*/
|
|
int (*detect)(struct si_sm_data *smi);
|
|
|
|
/* The interface is shutting down, so clean it up. */
|
|
void (*cleanup)(struct si_sm_data *smi);
|
|
|
|
/* Return the size of the SMI structure in bytes. */
|
|
int (*size)(void);
|
|
};
|
|
|
|
/* Current state machines that we can use. */
|
|
extern const struct si_sm_handlers kcs_smi_handlers;
|
|
extern const struct si_sm_handlers smic_smi_handlers;
|
|
extern const struct si_sm_handlers bt_smi_handlers;
|
|
|
|
#endif /* __IPMI_SI_SM_H__ */
|