/* $NetBSD: jenseniovar.h,v 1.7 2023/12/04 00:32:10 thorpej Exp $ */

/*-
 * Copyright (c) 1999 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Jason R. Thorpe.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _ALPHA_JENSENIO_JENSENIOVAR_H_
#define _ALPHA_JENSENIO_JENSENIOVAR_H_

#include <sys/evcnt.h>
#include <sys/vmem.h>

/*
 * Arguments used to attach devices to the Jensen I/O bus.
 */
struct jensenio_attach_args {
        union {
                struct eisabus_attach_args jaun_eisa;
                struct isabus_attach_args jaun_isa;
        } ja_un;

        const char *ja_name;
        bus_addr_t ja_ioaddr;           /* I/O space address */
        int ja_irq[2];                  /* Jensen IRQs */

/* For attaching busses. */
#define ja_eisa         ja_un.jaun_eisa
#define ja_isa          ja_un.jaun_isa

/* For attaching built-in devices. */
#define ja_iot          ja_eisa.eba_iot
#define ja_ec           ja_eisa.eba_ec
};

/*
 * The Jensen I/O bus configuration.
 *
 * All of the information that the chipset-specific functions need to
 * do their dirty work (and more!)
 */
struct jensenio_config {
        int     jc_initted;

        struct alpha_bus_space jc_internal_iot, jc_eisa_iot, jc_eisa_memt;
        struct alpha_eisa_chipset jc_ec;
        struct alpha_isa_chipset jc_ic;

        struct alpha_bus_dma_tag jc_dmat_eisa, jc_dmat_isa;

        vmem_t *jc_io_arena;
        vmem_t *jc_s_mem_arena;
};

/*
 * Interrupt handle for Jensen I/O interrupts that hook into
 * the SCB directly.
 */
struct jensenio_scb_intrhand {
        int             (*jih_func)(void *);
        void            *jih_arg;
        unsigned long   jih_vec;
        char            jih_vecstr[8];
        struct evcnt    jih_evcnt;
};

void    jensenio_page_physload(unsigned long, unsigned long);
void    jensenio_init(struct jensenio_config *);
void    jensenio_bus_io_init(bus_space_tag_t, void *);
void    jensenio_bus_intio_init(bus_space_tag_t, void *);
void    jensenio_bus_mem_init(bus_space_tag_t, void *);
void    jensenio_intr_init(struct jensenio_config *);
void    jensenio_dma_init(struct jensenio_config *);

void    jensenio_intr_establish(struct jensenio_scb_intrhand *,
            unsigned long, int, int (*)(void *), void *);
#endif /* _ALPHA_JENSENIO_JENSENIOVAR_H_ */