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.
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30#include "opt_vga.h"
31#include "opt_fb.h"
32#include "opt_syscons.h" /* should be removed in the future, XXX */
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/kernel.h>
37#include <sys/conf.h>
38#include <sys/bus.h>
39#include <sys/fbio.h>
40
41#include <machine/bus.h>
42#include <machine/resource.h>
43
44#include <sys/rman.h>
45
46#include <vm/vm.h>
47#include <vm/pmap.h>
48
49#include <machine/md_var.h>
50#ifdef __i386__
51#include <machine/pc/bios.h>
52#endif
53
54#include <dev/fb/fbreg.h>
55#include <dev/fb/vgareg.h>
56
57#include <isa/isareg.h>
58#include <isa/isavar.h>
59
60#define VGA_SOFTC(unit) \
61 ((vga_softc_t *)devclass_get_softc(isavga_devclass, unit))
62
63static devclass_t isavga_devclass;
64
65#ifdef FB_INSTALL_CDEV
66
67static d_open_t isavga_open;
68static d_close_t isavga_close;
69static d_read_t isavga_read;
70static d_write_t isavga_write;
71static d_ioctl_t isavga_ioctl;
72static d_mmap_t isavga_mmap;
73
74static struct cdevsw isavga_cdevsw = {
75 .d_open = isavga_open,
76 .d_close = isavga_close,
77 .d_read = isavga_read,
78 .d_write = isavga_write,
79 .d_ioctl = isavga_ioctl,
80 .d_mmap = isavga_mmap,
81 .d_name = VGA_DRIVER_NAME,
82 .d_maj = -1,
83};
84
85#endif /* FB_INSTALL_CDEV */
86
87static void
88isavga_identify(driver_t *driver, device_t parent)
89{
90 BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, VGA_DRIVER_NAME, 0);
91}
92
93static int
94isavga_probe(device_t dev)
95{
96 video_adapter_t adp;
97 int error;
98
99 /* No pnp support */
100 if (isa_get_vendorid(dev))
101 return (ENXIO);
102
103 device_set_desc(dev, "Generic ISA VGA");
104 error = vga_probe_unit(device_get_unit(dev), &adp, device_get_flags(dev));
105 if (error == 0) {
106 bus_set_resource(dev, SYS_RES_IOPORT, 0,
107 adp.va_io_base, adp.va_io_size);
108 bus_set_resource(dev, SYS_RES_MEMORY, 0,
109 adp.va_mem_base, adp.va_mem_size);
110#if 0
111 isa_set_port(dev, adp.va_io_base);
112 isa_set_portsize(dev, adp.va_io_size);
113 isa_set_maddr(dev, adp.va_mem_base);
114 isa_set_msize(dev, adp.va_mem_size);
115#endif
116 }
117 return error;
118}
119
120static int
121isavga_attach(device_t dev)
122{
123 vga_softc_t *sc;
124 int unit;
125 int rid;
126 int error;
127
128 unit = device_get_unit(dev);
129 sc = device_get_softc(dev);
130
131 rid = 0;
132 bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
133 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE);
134 rid = 0;
135 bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
136 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE);
137
138 error = vga_attach_unit(unit, sc, device_get_flags(dev));
139 if (error)
140 return error;
141
142#ifdef FB_INSTALL_CDEV
143 /* attach a virtual frame buffer device */
144 error = fb_attach(makedev(0, VGA_MKMINOR(unit)), sc->adp, &isavga_cdevsw);
145 if (error)
146 return error;
147#endif /* FB_INSTALL_CDEV */
148
149 if (bootverbose)
150 (*vidsw[sc->adp->va_index]->diag)(sc->adp, bootverbose);
151
152#if experimental
153 device_add_child(dev, "fb", -1);
154 bus_generic_attach(dev);
155#endif
156
157 return 0;
158}
159
160#ifdef FB_INSTALL_CDEV
161
162static int
163isavga_open(dev_t dev, int flag, int mode, struct thread *td)
164{
165 return vga_open(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, td);
166}
167
168static int
169isavga_close(dev_t dev, int flag, int mode, struct thread *td)
170{
171 return vga_close(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, td);
172}
173
174static int
175isavga_read(dev_t dev, struct uio *uio, int flag)
176{
177 return vga_read(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag);
178}
179
180static int
181isavga_write(dev_t dev, struct uio *uio, int flag)
182{
183 return vga_write(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag);
184}
185
186static int
187isavga_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct thread *td)
188{
189 return vga_ioctl(dev, VGA_SOFTC(VGA_UNIT(dev)), cmd, arg, flag, td);
190}
191
192static int
193isavga_mmap(dev_t dev, vm_offset_t offset, vm_paddr_t *paddr, int prot)
194{
195 return vga_mmap(dev, VGA_SOFTC(VGA_UNIT(dev)), offset, paddr, prot);
196}
197
198#endif /* FB_INSTALL_CDEV */
199
200static device_method_t isavga_methods[] = {
201 DEVMETHOD(device_identify, isavga_identify),
202 DEVMETHOD(device_probe, isavga_probe),
203 DEVMETHOD(device_attach, isavga_attach),
204
205 DEVMETHOD(bus_print_child, bus_generic_print_child),
206 { 0, 0 }
207};
208
209static driver_t isavga_driver = {
210 VGA_DRIVER_NAME,
211 isavga_methods,
212 sizeof(vga_softc_t),
213};
214
215DRIVER_MODULE(vga, isa, isavga_driver, isavga_devclass, 0, 0);
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