/* $NetBSD: podulebus.h,v 1.7 1997/01/03 23:27:31 mark Exp $ */

/*
 * Copyright (c) 1995 Mark Brinicombe.
 * Copyright (c) 1995 Brini.
 * All rights reserved.
 *
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Brini.
 * 4. The name of the company nor the name of the author may be used to
 *    endorse or promote products derived from this software without specific
 *    prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY BRINI ``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 BRINI 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.
 *
 * RiscBSD kernel project
 *
 * podulebus.h
 *
 * Podule bus header file
 *
 * Created      : 26/04/95
 */

#include <sys/param.h>

/* Define the structures used to describe the "known" podules */

struct podule_description {
	int product_id;
	char *description;
};

struct podule_list {
	int manufacturer_id;
	char *description;
	struct podule_description *products;
};

/* Define the structure used to describe a podule */

#define PODULE_DESCRIPTION_LENGTH	63

typedef struct {
/* The podule header, read from the on board ROM */

	u_char flags0;
	u_char flags1;
	u_char reserved;
	u_short product;
	u_short manufacturer;
	u_char country;
	u_int irq_addr;
	u_int irq_mask;
	u_int fiq_addr;
	u_int fiq_mask;

/* The base addresses for this podule */

	u_int fast_base;
	u_int medium_base;
	u_int slow_base;
	u_int sync_base;
	u_int mod_base;
	u_int easi_base;

	int dma_channel;
	
/* Flags */

	int podulenum; 
	int slottype;
	int attached;

/* Other info */

	char description[PODULE_DESCRIPTION_LENGTH + 1];
} podule_t;

#define PODULE_FLAGS_CD	0x01
#define PODULE_FLAGS_IS	0x02

#define SLOT_NONE 0x00
#define SLOT_POD  0x01
#define SLOT_NET  0x02

struct podule_attach_args {
	podule_t *pa_podule;		/* podule descriptor */
	int pa_podule_number;		/* podule number */
	int pa_slottype;		/* podule slot type */
};

/* Useful macros */

/* EASI space cycle control */

#define EASI_CYCLE_TYPE_A	0x00
#define EASI_CYCLE_TYPE_C	0x01
#define set_easi_cycle_type(podule, type) \
	WriteByte(IOMD_ECTCR, (ReadByte(IOMD_ECTCR) & ~(1 << podule)) | (1 << type))
  
#ifdef _KERNEL

/* Array of podule structures, one per possible podule */

extern podule_t podules[MAX_PODULES + MAX_NETSLOTS];

int matchpodule __P((struct podule_attach_args *pa,
    int manufacturer, int product, int required_slot));

#endif

/* End of podulebus.h */