janz.h

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/*
 * Common Definitions for Janz MODULbus devices
 *
 * Copyright (c) 2010 Ira W. Snyder <[email protected]>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 */

#ifndef JANZ_H
#define JANZ_H

struct janz_platform_data {
    /* MODULbus Module Number */
    unsigned int modno;
};

/* PLX bridge chip onboard registers */
struct janz_cmodio_onboard_regs {
    u8 unused1;

    /*
     * Read access: interrupt status
     * Write access: interrupt disable
     */
    u8 int_disable;
    u8 unused2;

    /*
     * Read access: MODULbus number (hex switch)
     * Write access: interrupt enable
     */
    u8 int_enable;
    u8 unused3;

    /* write-only */
    u8 reset_assert;
    u8 unused4;

    /* write-only */
    u8 reset_deassert;
    u8 unused5;

    /* read-write access to serial EEPROM */
    u8 eep;
    u8 unused6;

    /* write-only access to EEPROM chip select */
    u8 enid;
};

#endif /* JANZ_H */