bochsfbvar.h revision 1.1 
1/*
2 * Copyright (c) 2025 The NetBSD Foundation, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef BOCHSFBVAR_H
27#define BOCHSFBVAR_H
28
29#include <dev/wscons/wsdisplayvar.h>
30#include <dev/wscons/wsconsio.h>
31#include <dev/wsfont/wsfont.h>
32#include <dev/rasops/rasops.h>
33#include <dev/wscons/wsdisplay_vconsvar.h>
34#include <dev/videomode/edidvar.h>
35
36#ifndef BOCHSFB_DEFAULT_WIDTH
37#define BOCHSFB_DEFAULT_WIDTH	(1024)
38#endif
39
40#ifndef BOCHSFB_DEFAULT_HEIGHT
41#define BOCHSFB_DEFAULT_HEIGHT	(768)
42#endif
43
44/* Structure for the Bochs FB driver */
45struct bochsfb_softc {
46	device_t sc_dev;
47
48	/* PCI attachment */
49	pci_chipset_tag_t sc_pc;
50	pcitag_t sc_pcitag;
51
52	/* Bus space tags and handles */
53	bus_space_tag_t sc_iot;          /* I/O space tag */
54	bus_space_handle_t sc_ioh_vga;   /* VGA I/O handle */
55	bus_space_handle_t sc_ioh_dispi; /* DISPI I/O handle */
56
57	bus_space_tag_t sc_mmiot;     /* MMIO space tag */
58	bus_space_handle_t sc_mmioh;  /* MMIO handle for DISPI interface */
59
60	bus_space_tag_t sc_memt;      /* Memory space tag */
61	bus_space_handle_t sc_fb_handle; /* Framebuffer handle */
62
63	bus_addr_t sc_mmio_addr;      /* MMIO base address */
64	bus_size_t sc_mmio_size;      /* MMIO size */
65
66	bus_addr_t sc_fb_addr;        /* Framebuffer physical address */
67	bus_size_t sc_fb_size;        /* Framebuffer size */
68
69	bool sc_has_mmio;             /* Whether MMIO is available */
70
71	/* Device Info */
72	uint16_t sc_id;	  /* Device ID */
73	pcireg_t sc_pci_id; /* PCI ID */
74
75	/* Video mode parameters */
76	int sc_width, sc_height, sc_linebytes, sc_bpp;
77	const struct videomode *sc_videomode;
78
79	uint8_t edid_buf[0x400]; /* EDID data buffer */
80	struct edid_info sc_ei;
81
82	/* WS Display data */
83	int sc_blank;
84	int sc_mode;
85	struct vcons_screen sc_console_screen;
86	struct vcons_data vd;
87	struct wsscreen_descr sc_defaultscreen_descr;
88	const struct wsscreen_descr *sc_screens[1];
89	struct wsscreen_list sc_screenlist;
90};
91
92#endif /* BOCHSFBVAR_H */
93