/* $OpenBSD: vga_pcivar.h,v 1.20 2015/10/29 07:47:03 kettenis Exp $ */
/* $NetBSD: vga_pcivar.h,v 1.1 1998/03/22 15:16:19 drochner Exp $ */

/*
 * Copyright (c) 1995, 1996 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.
 */

#ifndef _PCI_VGA_PCIVAR_H_
#define _PCI_VGA_PCIVAR_H_

#define DEVICE_IS_VGA_PCI(class)                                        \
            (((PCI_CLASS(class) == PCI_CLASS_DISPLAY &&                 \
              PCI_SUBCLASS(class) == PCI_SUBCLASS_DISPLAY_VGA) ||       \
             (PCI_CLASS(class) == PCI_CLASS_PREHISTORIC &&              \
              PCI_SUBCLASS(class) == PCI_SUBCLASS_PREHISTORIC_VGA)) ? 1 : 0)

#define VGA_PCI_MAX_BARS 6

struct vga_pci_bar {
        int             addr;
        u_int           mapped;
        pcireg_t        maptype;
        bus_addr_t      base;
        bus_size_t      size;
        bus_size_t      maxsize;
        bus_space_tag_t bst;
        bus_space_handle_t bsh;
        int             flags;
        void            *vaddr;
};
        
struct vga_pci_softc {
        struct device sc_dev;
        struct vga_config *sc_vc;
        int sc_type;

        struct pci_attach_args pa;
#if NACPI > 0
        struct reg_vgats sc_save_ts;
        struct reg_mc6845 sc_save_crtc;
        struct reg_vgaattr sc_save_atc;
        struct reg_vgagdc sc_save_gdc;
#endif
#ifdef X86EMU
        struct vga_post *sc_posth;
#endif
#ifdef VESAFB
        int sc_width;
        int sc_height;
        int sc_depth;
        int sc_linebytes;
        u_int32_t sc_base;
        int sc_mode;                    /* WSDISPLAY_MODE_EMUL or _DUMBFB */
        int sc_textmode;                /* original VESA text mode */
        int sc_gfxmode;                 /* VESA graphics mode */
        u_char sc_cmap_red[256];        /* saved color map */
        u_char sc_cmap_green[256];
        u_char sc_cmap_blue[256];
#endif
};

int     vga_pci_cnattach(bus_space_tag_t, bus_space_tag_t,
            pci_chipset_tag_t, int, int, int);
int     vga_aperture_needed(struct pci_attach_args *);

#endif /* _PCI_VGA_PCIVAR_H_ */