Style(9) cleanup to src/sys/vfs, stage 20/21: umapfs.
[dragonfly.git] / sys / bus / isa / vga_isa.c
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: 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 1.7 2004/05/13 23:49:13 dillon Exp $
28  */
29
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 #include <machine/pc/bios.h>
51
52 #include <dev/video/fb/fbreg.h>
53 #include <dev/video/fb/vgareg.h>
54
55 #include "isareg.h"
56 #include "isavar.h"
57
58 #define VGA_SOFTC(unit)         \
59         ((vga_softc_t *)devclass_get_softc(isavga_devclass, unit))
60
61 static devclass_t       isavga_devclass;
62
63 static int              isavga_probe(device_t dev);
64 static int              isavga_attach(device_t dev);
65
66 static device_method_t isavga_methods[] = {
67         DEVMETHOD(device_probe,         isavga_probe),
68         DEVMETHOD(device_attach,        isavga_attach),
69
70         DEVMETHOD(bus_print_child,      bus_generic_print_child),
71         { 0, 0 }
72 };
73
74 static driver_t isavga_driver = {
75         VGA_DRIVER_NAME,
76         isavga_methods,
77         sizeof(vga_softc_t),
78 };
79
80 DRIVER_MODULE(vga, isa, isavga_driver, isavga_devclass, 0, 0);
81
82 #ifdef FB_INSTALL_CDEV
83
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;
90
91 static struct cdevsw isavga_cdevsw = {
92         /* name */      VGA_DRIVER_NAME,
93         /* maj */       -1,
94         /* flags */     0,
95         /* port */      NULL,
96         /* clone */     NULL,
97
98         /* open */      isavga_open,
99         /* close */     isavga_close,
100         /* read */      isavga_read,
101         /* write */     isavga_write,
102         /* ioctl */     isavga_ioctl,
103         /* poll */      nopoll,
104         /* mmap */      isavga_mmap,
105         /* strategy */  nostrategy,
106         /* dump */      nodump,
107         /* psize */     nopsize
108 };
109
110 #endif /* FB_INSTALL_CDEV */
111
112 static int
113 isavga_probe(device_t dev)
114 {
115         video_adapter_t adp;
116         device_t bus;
117         int error;
118
119         /* No pnp support */
120         if (isa_get_vendorid(dev))
121                 return (ENXIO);
122
123         device_set_desc(dev, "Generic ISA VGA");
124         error = vga_probe_unit(device_get_unit(dev), &adp, device_get_flags(dev));
125         if (error == 0) {
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);
131 #if 0
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);
136 #endif
137         }
138         return error;
139 }
140
141 static int
142 isavga_attach(device_t dev)
143 {
144         vga_softc_t *sc;
145         struct resource *port;
146         struct resource *mem;
147         int unit;
148         int rid;
149         int error;
150
151         unit = device_get_unit(dev);
152         sc = device_get_softc(dev);
153
154         rid = 0;
155         port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
156                                   0, ~0, 0, RF_ACTIVE | RF_SHAREABLE);
157         rid = 0;
158         mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
159                                  0, ~0, 0, RF_ACTIVE | RF_SHAREABLE);
160
161         error = vga_attach_unit(unit, sc, device_get_flags(dev));
162         if (error)
163                 return error;
164
165 #ifdef FB_INSTALL_CDEV
166         /* attach a virtual frame buffer device */
167         sc->devt = make_dev(&isavga_cdevsw, VGA_MKMINOR(unit), 0, 0, 02660, "vga%x", VGA_MKMINOR(unit));
168         error = fb_attach(sc->devt, sc->adp);
169         if (error)
170                 return error;
171 #endif /* FB_INSTALL_CDEV */
172
173         if (bootverbose)
174                 (*vidsw[sc->adp->va_index]->diag)(sc->adp, bootverbose);
175
176 #if experimental
177         device_add_child(dev, "fb", -1);
178         bus_generic_attach(dev);
179 #endif
180
181         return 0;
182 }
183
184 #ifdef FB_INSTALL_CDEV
185
186 static int
187 isavga_open(dev_t dev, int flag, int mode, struct thread *td)
188 {
189         return vga_open(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, td);
190 }
191
192 static int
193 isavga_close(dev_t dev, int flag, int mode, struct thread *td)
194 {
195         return vga_close(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, td);
196 }
197
198 static int
199 isavga_read(dev_t dev, struct uio *uio, int flag)
200 {
201         return vga_read(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag);
202 }
203
204 static int
205 isavga_write(dev_t dev, struct uio *uio, int flag)
206 {
207         return vga_write(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag);
208 }
209
210 static int
211 isavga_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, struct thread *td)
212 {
213         return vga_ioctl(dev, VGA_SOFTC(VGA_UNIT(dev)), cmd, arg, flag, td);
214 }
215
216 static int
217 isavga_mmap(dev_t dev, vm_offset_t offset, int prot)
218 {
219         return vga_mmap(dev, VGA_SOFTC(VGA_UNIT(dev)), offset, prot);
220 }
221
222 #endif /* FB_INSTALL_CDEV */