xref: /openbsd-src/sys/dev/pci/vga_pcivar.h (revision 2b0358df1d88d06ef4139321dd05bd5e05d91eaf)
1 /* $OpenBSD: vga_pcivar.h,v 1.11 2008/06/12 00:54:38 oga Exp $ */
2 /* $NetBSD: vga_pcivar.h,v 1.1 1998/03/22 15:16:19 drochner Exp $ */
3 
4 /*
5  * Copyright (c) 1995, 1996 Carnegie-Mellon University.
6  * All rights reserved.
7  *
8  * Author: Chris G. Demetriou
9  *
10  * Permission to use, copy, modify and distribute this software and
11  * its documentation is hereby granted, provided that both the copyright
12  * notice and this permission notice appear in all copies of the
13  * software, derivative works or modified versions, and any portions
14  * thereof, and that both notices appear in supporting documentation.
15  *
16  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
17  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
18  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
19  *
20  * Carnegie Mellon requests users of this software to return to
21  *
22  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
23  *  School of Computer Science
24  *  Carnegie Mellon University
25  *  Pittsburgh PA 15213-3890
26  *
27  * any improvements or extensions that they make and grant Carnegie the
28  * rights to redistribute these changes.
29  */
30 
31 #ifndef _PCI_VGA_PCIVAR_H_
32 #define _PCI_VGA_PCIVAR_H_
33 
34 #define	DEVICE_IS_VGA_PCI(class)					\
35 	    (((PCI_CLASS(class) == PCI_CLASS_DISPLAY &&			\
36 	      PCI_SUBCLASS(class) == PCI_SUBCLASS_DISPLAY_VGA) ||	\
37 	     (PCI_CLASS(class) == PCI_CLASS_PREHISTORIC &&		\
38 	      PCI_SUBCLASS(class) == PCI_SUBCLASS_PREHISTORIC_VGA)) ? 1 : 0)
39 
40 #define VGA_PCI_MAX_BARS 6
41 
42 struct vga_pci_bar {
43 	int		addr;
44 	u_int		mapped;
45 	pcireg_t	maptype;
46 	bus_addr_t	base;
47 	bus_size_t	size;
48 	bus_size_t	maxsize;
49 	bus_space_tag_t	bst;
50 	bus_space_handle_t bsh;
51 	int		flags;
52 	void		*vaddr;
53 };
54 
55 struct vga_pci_softc {
56 	struct device sc_dev;
57 
58 	struct pci_attach_args pa;
59 	struct vga_pci_bar *bars[VGA_PCI_MAX_BARS];
60 #ifdef VESAFB
61 	int sc_width;
62 	int sc_height;
63 	int sc_depth;
64 	int sc_linebytes;
65 	u_int32_t sc_base;
66 	int sc_mode;			/* WSDISPLAY_MODE_EMUL or _DUMBFB */
67 	int sc_textmode;		/* original VESA text mode */
68 	int sc_gfxmode;			/* VESA graphics mode */
69 	u_char sc_cmap_red[256];	/* saved color map */
70 	u_char sc_cmap_green[256];
71 	u_char sc_cmap_blue[256];
72 
73 #endif
74 };
75 
76 int	vga_pci_cnattach(bus_space_tag_t, bus_space_tag_t,
77 	    pci_chipset_tag_t, int, int, int);
78 struct	vga_pci_bar *vga_pci_bar_info(struct vga_pci_softc *, int);
79 struct	vga_pci_bar *vga_pci_bar_map(struct vga_pci_softc *, int,
80 	    bus_size_t, int);
81 void	vga_pci_bar_unmap(struct vga_pci_bar*);
82 
83 #ifdef VESAFB
84 int vesafb_find_mode(struct vga_pci_softc *, int, int, int);
85 void vesafb_set_mode(struct vga_pci_softc *, int);
86 int vesafb_get_mode(struct vga_pci_softc *);
87 int vesafb_get_supported_depth(struct vga_pci_softc *);
88 #endif
89 
90 #endif /* _PCI_VGA_PCIVAR_H_ */
91