/*	$OpenBSD: giovar.h,v 1.4 2012/05/17 19:46:52 miod Exp $	*/
/*	$NetBSD: giovar.h,v 1.10 2011/07/01 18:53:46 dyoung Exp $	*/

/*
 * Copyright (c) 2000 Soren S. Jorvang
 * 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 for the
 *          NetBSD Project.  See http://www.NetBSD.org/ for
 *          information about NetBSD.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

/*
 * GIO 32/32-bis/64 bus
 */

struct gio_attach_args {
	bus_space_tag_t		 ga_iot;
	bus_space_handle_t	 ga_ioh;
	bus_dma_tag_t		 ga_dmat;

	int			 ga_slot;	/* -1 if graphics */
	u_int64_t		 ga_addr;

	u_int32_t		 ga_product;	/* not valid if graphics */
	const char		*ga_descr;	/* only valid if graphics */
};


#define GIO_SLOT_GFX		0
#define GIO_SLOT_EXP0		1
#define GIO_SLOT_EXP1		2

#define GIO_ARB_RT		0x001	/* real-time device */
#define GIO_ARB_LB		0x002	/* long-burst device */

#define GIO_ARB_MST		0x004	/* bus master enable */
#define GIO_ARB_SLV		0x008	/* slave */

#define GIO_ARB_PIPE		0x010	/* pipelining enable */
#define GIO_ARB_NOPIPE		0x020	/* pipelining disable */

#define GIO_ARB_32BIT		0x040	/* 32-bit transfers */
#define GIO_ARB_64BIT		0x080	/* 64-bit transfers */

#define GIO_ARB_HPC2_32BIT	0x100	/* 32-bit secondary HPC (ignores slot)*/
#define GIO_ARB_HPC2_64BIT	0x200	/* 64-bit secondary HPC (ignores slot)*/

/*
 * Maximum number of graphics boards installed. The known limit is 2,
 * but we're allowing room for some surprises.
 */
#define	GIO_MAX_FB		3

int		gio_arb_config(int, uint32_t);
int		gio_intr_map(int);
void	       *gio_intr_establish(int, int, int (*)(void *), void *,
		    const char *);
const char     *gio_product_string(int);

int		giofb_cnattach(void);
int		giofb_cnprobe(void);

extern paddr_t	giofb_consaddr;
extern const char *giofb_names[GIO_MAX_FB];

/*
 * Fake GIO device IDs to identify frame buffers without GIO IDs.
 * These are built as 32-bit GIO IDs without the `32-bit ID' bit set.
 */

#define	GIO_PRODUCT_FAKEID_LIGHT	0xff010000
#define	GIO_PRODUCT_FAKEID_NEWPORT	0xff020000
#define	GIO_PRODUCT_FAKEID_GRTWO	0xff030000