linux-imx

/* 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.

 */

​

#include <linux/ipmi.h>

​

/*

 * This is defined by the state machines themselves, it is an opaque

 * data type for them to use.

 */

struct si_sm_data;

​

enum si_type {

    SI_TYPE_INVALID, SI_KCS, SI_SMIC, SI_BT

};

​

enum ipmi_addr_space {

    IPMI_IO_ADDR_SPACE, IPMI_MEM_ADDR_SPACE

};

​

/*

 * The structure for doing I/O in the state machine.  The state

 * machine doesn't have the actual I/O routines, they are done through

 * this interface.

 */

struct si_sm_io {

    unsigned char (*inputb)(const struct si_sm_io *io, unsigned int offset);

    void (*outputb)(const struct si_sm_io *io,

            unsigned int  offset,

            unsigned char b);

​

    /*

     * Generic info used by the actual handling routines, the

     * state machine shouldn't touch these.

     */

    void __iomem *addr;

    unsigned int regspacing;

    unsigned int regsize;

    unsigned int regshift;

    enum ipmi_addr_space addr_space;

    unsigned long addr_data;

    enum ipmi_addr_src addr_source; /* ACPI, PCI, SMBIOS, hardcode, etc. */

    void (*addr_source_cleanup)(struct si_sm_io *io);

    void *addr_source_data;

    union ipmi_smi_info_union addr_info;

​

    int (*io_setup)(struct si_sm_io *info);

    void (*io_cleanup)(struct si_sm_io *info);

    unsigned int io_size;

​

    int irq;