/*	$NetBSD: tgavar.h,v 1.3 1995/11/23 02:38:31 cgd Exp $	*/

/*
 * Copyright (c) 1995 Carnegie-Mellon University.
 * All rights reserved.
 *
 * Author: Chris G. Demetriou
 * 
 * Permission to use, copy, modify and distribute this software and
 * its documentation is hereby granted, provided that both the copyright
 * notice and this permission notice appear in all copies of the
 * software, derivative works or modified versions, and any portions
 * thereof, and that both notices appear in supporting documentation.
 * 
 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
 * 
 * Carnegie Mellon requests users of this software to return to
 *
 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
 *  School of Computer Science
 *  Carnegie Mellon University
 *  Pittsburgh PA 15213-3890
 *
 * any improvements or extensions that they make and grant Carnegie the
 * rights to redistribute these changes.
 */

#include <alpha/pci/tgareg.h>
#include <dev/rcons/raster.h>
#include <dev/pseudo/rcons.h>
#include <dev/pseudo/ansicons.h>

struct tga_devconfig;

struct tga_ramdac_conf {
	char	*tgar_name;
	void	(*tgar_set_cpos) __P((struct tga_devconfig *, int, int));
	void	(*tgar_get_cpos) __P((struct tga_devconfig *, int *, int *));
	/* set cursor shape */
	/* set cursor location */
	/* set cursor colormap? */
	/* set colormap? */
};

struct tga_conf {
	char	    *tgac_name;		/* name for this board type */

	__const struct tga_ramdac_conf
		    *tgac_ramdac;	/* the RAMDAC type; see above */
	int	    tgac_phys_depth;	/* physical frame buffer depth */
	vm_size_t   tgac_cspace_size;	/* core space size */
	vm_size_t   tgac_vvbr_units;	/* what '1' in the VVBR means */

	int	    tgac_ndbuf;		/* number of display buffers */
	vm_offset_t tgac_dbuf[2];	/* display buffer offsets/addresses */
	vm_size_t   tgac_dbufsz[2];	/* display buffer sizes */

	int	    tgac_nbbuf;		/* number of display buffers */
	vm_offset_t tgac_bbuf[2];	/* back buffer offsets/addresses */
	vm_size_t   tgac_bbufsz[2];	/* back buffer sizes */
};

struct tga_devconfig {
	__const struct pci_conf_fns *dc_pcf;
	void		*dc_pcfa;
	__const struct pci_mem_fns *dc_pmf;
	void		*dc_pmfa;
	__const struct pci_pio_fns *dc_ppf;
	void		*dc_ppfa;

	pci_conftag_t    dc_pcitag;	/* PCI tag */
	pci_moffset_t	 dc_pcipaddr;	/* PCI phys addr. */

	tga_reg_t   *dc_regs;		/* registers; XXX: need aliases */

	int	    dc_tga_type;	/* the device type; see below */
	__const struct tga_conf *dc_tgaconf; /* device buffer configuration */

	vm_offset_t dc_vaddr;		/* memory space virtual base address */
	vm_offset_t dc_paddr;		/* memory space physical base address */

	int	    dc_wid;		/* width of frame buffer */
	int	    dc_ht;		/* height of frame buffer */
	int	    dc_rowbytes;	/* bytes in a FB scan line */

	vm_offset_t dc_videobase;	/* base of flat frame buffer */

	struct raster	dc_raster;	/* raster description */
	struct rcons	dc_rcons;	/* raster blitter control info */
	struct ansicons	dc_ansicons;	/* ansi console emulator info XXX */
};
	
struct tga_softc {
	struct	device sc_dev;

	struct	tga_devconfig *sc_dc;	/* device configuration */
	void	*sc_intr;		/* interrupt handler info */
};

#define	TGA_TYPE_T8_01		0	/* 8bpp, 1MB */
#define	TGA_TYPE_T8_02		1	/* 8bpp, 2MB */
#define	TGA_TYPE_T8_22		2	/* 8bpp, 4MB */
#define	TGA_TYPE_T8_44		3	/* 8bpp, 8MB */
#define	TGA_TYPE_T32_04		4	/* 32bpp, 4MB */
#define	TGA_TYPE_T32_08		5	/* 32bpp, 8MB */
#define	TGA_TYPE_T32_88		6	/* 32bpp, 16MB */
#define	TGA_TYPE_UNKNOWN	7	/* unknown */

#define	TGA_CURSOR_OFF		-1	/* pass to tgar_cpos to disable */

#define	DEVICE_IS_TGA(class, id)					\
	    (PCI_VENDOR(id) == PCI_VENDOR_DEC &&			\
	     PCI_PRODUCT(id) == PCI_PRODUCT_DEC_21030)

void    tga_console __P((__const struct pci_conf_fns *, void *, 
	    __const struct pci_mem_fns *, void *,
	    __const struct pci_pio_fns *, void *,
	    pci_bus_t, pci_device_t, pci_function_t));