1/*-
2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
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 as
10 * the first lines of this file unmodified.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/isa/vga_isa.c 115549 2003-05-31 20:29:34Z phk $
27 */
28
29#include "opt_vga.h"
30#include "opt_fb.h"
31#include "opt_syscons.h" /* should be removed in the future, XXX */
32
33#include <sys/param.h>
34#include <sys/systm.h>
35#include <sys/kernel.h>
36#include <sys/conf.h>
37#include <sys/bus.h>
38#include <sys/fbio.h>
39
40#include <machine/bus.h>
41#include <machine/resource.h>
42
43#include <sys/rman.h>
44
45#include <vm/vm.h>
46#include <vm/pmap.h>
47
48#include <machine/md_var.h>
49#ifdef __i386__
50#include <machine/pc/bios.h>
51#endif
52
53#include <dev/fb/fbreg.h>
54#include <dev/fb/vgareg.h>
55
56#include <isa/isareg.h>
57#include <isa/isavar.h>
58
59#define VGA_SOFTC(unit) \
60 ((vga_softc_t *)devclass_get_softc(isavga_devclass, unit))
61
62static devclass_t isavga_devclass;
63
64#ifdef FB_INSTALL_CDEV
65
66static d_open_t isavga_open;
67static d_close_t isavga_close;
68static d_read_t isavga_read;
69static d_write_t isavga_write;
70static d_ioctl_t isavga_ioctl;
71static d_mmap_t isavga_mmap;
72
73static struct cdevsw isavga_cdevsw = {
74 .d_open = isavga_open,
75 .d_close = isavga_close,
76 .d_read = isavga_read,
77 .d_write = isavga_write,
78 .d_ioctl = isavga_ioctl,
79 .d_mmap = isavga_mmap,
80 .d_name = VGA_DRIVER_NAME,
81 .d_maj = -1,
82};
83
84#endif /* FB_INSTALL_CDEV */
85
86static void
87isavga_identify(driver_t *driver, device_t parent)
88{
89 BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, VGA_DRIVER_NAME, 0);
90}
91
92static int
93isavga_probe(device_t dev)
94{
95 video_adapter_t adp;
96 int error;
97
98 /* No pnp support */
99 if (isa_get_vendorid(dev))
100 return (ENXIO);
101
102 device_set_desc(dev, "Generic ISA VGA");
103 error = vga_probe_unit(device_get_unit(dev), &adp, device_get_flags(dev));
104 if (error == 0) {
105 bus_set_resource(dev, SYS_RES_IOPORT, 0,
106 adp.va_io_base, adp.va_io_size);
107 bus_set_resource(dev, SYS_RES_MEMORY, 0,
108 adp.va_mem_base, adp.va_mem_size);
109#if 0
110 isa_set_port(dev, adp.va_io_base);
111 isa_set_portsize(dev, adp.va_io_size);
112 isa_set_maddr(dev, adp.va_mem_base);
113 isa_set_msize(dev, adp.va_mem_size);
114#endif
115 }
116 return error;
117}
118
119static int
120isavga_attach(device_t dev)
121{
122 vga_softc_t *sc;
123 int unit;
124 int rid;
125 int error;
126
127 unit = device_get_unit(dev);
128 sc = device_get_softc(dev);
129
130 rid = 0;
131 bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
132 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE);
133 rid = 0;
134 bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
135 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE);
136
137 error = vga_attach_unit(unit, sc, device_get_flags(dev));
138 if (error)
139 return error;
140
141#ifdef FB_INSTALL_CDEV
142 /* attach a virtual frame buffer device */
143 error = fb_attach(makedev(0, VGA_MKMINOR(unit)), sc->adp, &isavga_cdevsw);
144 if (error)
145 return error;
146#endif /* FB_INSTALL_CDEV */
147
148 if (bootverbose)
149 (*vidsw[sc->adp->va_index]->diag)(sc->adp, bootverbose);
150
151#if experimental
152 device_add_child(dev, "fb", -1);
153 bus_generic_attach(dev);
154#endif
155
156 return 0;
157}
158
159#ifdef FB_INSTALL_CDEV
160
161static int
162isavga_open(dev_t dev, int flag, int mode, struct thread *td)
163{
164 return vga_open(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, td);
165}
166
167static int
168isavga_close(dev_t dev, int flag, int mode, struct thread *td)
169{
170 return vga_close(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, td);
171}
172
173static int
174isavga_read(dev_t dev, struct uio *uio, int flag)
175{
176 return vga_read(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag);
177}
178
179static int
180isavga_write(dev_t dev, struct uio *uio, int flag)
181{
182 return vga_write(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag);
183}
184
185static int
186isavga_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct thread *td)
187{
188 return vga_ioctl(dev, VGA_SOFTC(VGA_UNIT(dev)), cmd, arg, flag, td);
189}
190
191static int
192isavga_mmap(dev_t dev, vm_offset_t offset, vm_paddr_t *paddr, int prot)
193{
194 return vga_mmap(dev, VGA_SOFTC(VGA_UNIT(dev)), offset, paddr, prot);
195}
196
197#endif /* FB_INSTALL_CDEV */
198
199static device_method_t isavga_methods[] = {
200 DEVMETHOD(device_identify, isavga_identify),
201 DEVMETHOD(device_probe, isavga_probe),
202 DEVMETHOD(device_attach, isavga_attach),
203
204 DEVMETHOD(bus_print_child, bus_generic_print_child),
205 { 0, 0 }
206};
207
208static driver_t isavga_driver = {
209 VGA_DRIVER_NAME,
210 isavga_methods,
211 sizeof(vga_softc_t),
212};
213
214DRIVER_MODULE(vga, isa, isavga_driver, isavga_devclass, 0, 0);