2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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.
26 * $FreeBSD: src/sys/isa/vga_isa.c,v 1.17 2000/01/29 15:08:56 peter Exp $
27 * $DragonFly: src/sys/bus/isa/vga_isa.c,v 1.4 2003/07/21 07:57:47 dillon Exp $
32 #include "opt_syscons.h" /* should be removed in the future, XXX */
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
41 #include <machine/bus.h>
42 #include <machine/resource.h>
49 #include <machine/md_var.h>
50 #include <machine/pc/bios.h>
52 #include <dev/fb/fbreg.h>
53 #include <dev/fb/vgareg.h>
55 #include <isa/isareg.h>
56 #include <isa/isavar.h>
58 #define VGA_SOFTC(unit) \
59 ((vga_softc_t *)devclass_get_softc(isavga_devclass, unit))
61 static devclass_t isavga_devclass;
63 static int isavga_probe(device_t dev);
64 static int isavga_attach(device_t dev);
66 static device_method_t isavga_methods[] = {
67 DEVMETHOD(device_probe, isavga_probe),
68 DEVMETHOD(device_attach, isavga_attach),
70 DEVMETHOD(bus_print_child, bus_generic_print_child),
74 static driver_t isavga_driver = {
80 DRIVER_MODULE(vga, isa, isavga_driver, isavga_devclass, 0, 0);
82 #ifdef FB_INSTALL_CDEV
84 static d_open_t isavga_open;
85 static d_close_t isavga_close;
86 static d_read_t isavga_read;
87 static d_write_t isavga_write;
88 static d_ioctl_t isavga_ioctl;
89 static d_mmap_t isavga_mmap;
91 static struct cdevsw isavga_cdevsw = {
92 /* name */ VGA_DRIVER_NAME,
98 /* open */ isavga_open,
99 /* close */ isavga_close,
100 /* read */ isavga_read,
101 /* write */ isavga_write,
102 /* ioctl */ isavga_ioctl,
104 /* mmap */ isavga_mmap,
105 /* strategy */ nostrategy,
110 #endif /* FB_INSTALL_CDEV */
113 isavga_probe(device_t dev)
120 if (isa_get_vendorid(dev))
123 device_set_desc(dev, "Generic ISA VGA");
124 error = vga_probe_unit(device_get_unit(dev), &adp, device_get_flags(dev));
126 bus = device_get_parent(dev);
127 bus_set_resource(dev, SYS_RES_IOPORT, 0,
128 adp.va_io_base, adp.va_io_size);
129 bus_set_resource(dev, SYS_RES_MEMORY, 0,
130 adp.va_mem_base, adp.va_mem_size);
132 isa_set_port(dev, adp.va_io_base);
133 isa_set_portsize(dev, adp.va_io_size);
134 isa_set_maddr(dev, adp.va_mem_base);
135 isa_set_msize(dev, adp.va_mem_size);
142 isavga_attach(device_t dev)
145 struct resource *port;
146 struct resource *mem;
151 unit = device_get_unit(dev);
152 sc = device_get_softc(dev);
155 port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
156 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE);
158 mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
159 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE);
161 error = vga_attach_unit(unit, sc, device_get_flags(dev));
165 #ifdef FB_INSTALL_CDEV
166 /* attach a virtual frame buffer device */
167 error = fb_attach(makedev(0, VGA_MKMINOR(unit)), sc->adp, &isavga_cdevsw);
170 #endif /* FB_INSTALL_CDEV */
173 (*vidsw[sc->adp->va_index]->diag)(sc->adp, bootverbose);
176 device_add_child(dev, "fb", -1);
177 bus_generic_attach(dev);
183 #ifdef FB_INSTALL_CDEV
186 isavga_open(dev_t dev, int flag, int mode, struct thread *td)
188 return vga_open(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, td);
192 isavga_close(dev_t dev, int flag, int mode, struct thread *td)
194 return vga_close(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, td);
198 isavga_read(dev_t dev, struct uio *uio, int flag)
200 return vga_read(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag);
204 isavga_write(dev_t dev, struct uio *uio, int flag)
206 return vga_write(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag);
210 isavga_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct thread *td)
212 return vga_ioctl(dev, VGA_SOFTC(VGA_UNIT(dev)), cmd, arg, flag, td);
216 isavga_mmap(dev_t dev, vm_offset_t offset, int prot)
218 return vga_mmap(dev, VGA_SOFTC(VGA_UNIT(dev)), offset, prot);
221 #endif /* FB_INSTALL_CDEV */