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 1.11 2006/09/05 00:55:35 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>
37 #include <sys/malloc.h>
39 #include <sys/device.h>
43 #include <machine/bus.h>
44 #include <machine/resource.h>
51 #include <machine/md_var.h>
52 #include <machine/pc/bios.h>
54 #include <dev/video/fb/fbreg.h>
55 #include <dev/video/fb/vgareg.h>
60 #define VGA_SOFTC(unit) \
61 ((vga_softc_t *)devclass_get_softc(isavga_devclass, unit))
63 static devclass_t isavga_devclass;
65 static int isavga_probe(device_t dev);
66 static int isavga_attach(device_t dev);
67 static int isavga_suspend(device_t dev);
68 static int isavga_resume(device_t dev);
70 static device_method_t isavga_methods[] = {
71 DEVMETHOD(device_probe, isavga_probe),
72 DEVMETHOD(device_attach, isavga_attach),
73 DEVMETHOD(device_suspend, isavga_suspend),
74 DEVMETHOD(device_resume, isavga_resume),
76 DEVMETHOD(bus_print_child, bus_generic_print_child),
80 static driver_t isavga_driver = {
86 DRIVER_MODULE(vga, isa, isavga_driver, isavga_devclass, 0, 0);
88 #ifdef FB_INSTALL_CDEV
90 static d_open_t isavga_open;
91 static d_close_t isavga_close;
92 static d_read_t isavga_read;
93 static d_write_t isavga_write;
94 static d_ioctl_t isavga_ioctl;
95 static d_mmap_t isavga_mmap;
97 static struct dev_ops isavga_ops = {
98 { VGA_DRIVER_NAME, -1, 0 },
99 .d_open = isavga_open,
100 .d_close = isavga_close,
101 .d_read = isavga_read,
102 .d_write = isavga_write,
103 .d_ioctl = isavga_ioctl,
104 .d_mmap = isavga_mmap,
107 #endif /* FB_INSTALL_CDEV */
110 isavga_probe(device_t dev)
117 if (isa_get_vendorid(dev))
120 device_set_desc(dev, "Generic ISA VGA");
121 error = vga_probe_unit(device_get_unit(dev), &adp, device_get_flags(dev));
123 bus = device_get_parent(dev);
124 bus_set_resource(dev, SYS_RES_IOPORT, 0,
125 adp.va_io_base, adp.va_io_size);
126 bus_set_resource(dev, SYS_RES_MEMORY, 0,
127 adp.va_mem_base, adp.va_mem_size);
129 isa_set_port(dev, adp.va_io_base);
130 isa_set_portsize(dev, adp.va_io_size);
131 isa_set_maddr(dev, adp.va_mem_base);
132 isa_set_msize(dev, adp.va_mem_size);
139 isavga_attach(device_t dev)
142 struct resource *port;
143 struct resource *mem;
148 unit = device_get_unit(dev);
149 sc = device_get_softc(dev);
152 port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
153 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE);
155 mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
156 0, ~0, 0, RF_ACTIVE | RF_SHAREABLE);
158 error = vga_attach_unit(unit, sc, device_get_flags(dev));
162 #ifdef FB_INSTALL_CDEV
163 /* attach a virtual frame buffer device */
164 dev_ops_add(&isavga_ops, VGA_MKMINOR(-1), VGA_MKMINOR(unit));
165 sc->devt = make_dev(&isavga_ops, VGA_MKMINOR(unit), 0, 0, 02660, "vga%x", VGA_MKMINOR(unit));
166 reference_dev(sc->devt);
167 error = fb_attach(sc->devt, sc->adp);
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);
184 isavga_suspend(device_t dev)
189 sc = device_get_softc(dev);
190 err = bus_generic_suspend(dev);
194 /* Save the video state across the suspend. */
195 if (sc->state_buf != NULL) {
196 kfree(sc->state_buf, M_TEMP);
197 sc->state_buf = NULL;
199 nbytes = (*vidsw[sc->adp->va_index]->save_state)(sc->adp, NULL, 0);
202 sc->state_buf = kmalloc(nbytes, M_TEMP, M_NOWAIT | M_ZERO);
203 if (sc->state_buf == NULL)
206 device_printf(dev, "saving %d bytes of video state\n", nbytes);
207 if ((*vidsw[sc->adp->va_index]->save_state)(sc->adp, sc->state_buf,
209 device_printf(dev, "failed to save state (nbytes=%d)\n",
211 kfree(sc->state_buf, M_TEMP);
212 sc->state_buf = NULL;
218 isavga_resume(device_t dev)
222 sc = device_get_softc(dev);
223 if (sc->state_buf != NULL) {
224 if ((*vidsw[sc->adp->va_index]->load_state)(sc->adp,
226 device_printf(dev, "failed to reload state\n");
227 kfree(sc->state_buf, M_TEMP);
228 sc->state_buf = NULL;
231 bus_generic_resume(dev);
235 #ifdef FB_INSTALL_CDEV
238 isavga_open(struct dev_open_args *ap)
240 dev_t dev = ap->a_head.a_dev;
242 return vga_open(dev, VGA_SOFTC(VGA_UNIT(dev)), ap->a_oflags,
243 ap->a_devtype, ap->a_cred);
247 isavga_close(struct dev_close_args *ap)
249 dev_t dev = ap->a_head.a_dev;
251 return vga_close(dev, VGA_SOFTC(VGA_UNIT(dev)),
252 ap->a_fflag, ap->a_devtype);
256 isavga_read(struct dev_read_args *ap)
258 dev_t dev = ap->a_head.a_dev;
260 return vga_read(dev, VGA_SOFTC(VGA_UNIT(dev)), ap->a_uio, ap->a_ioflag);
264 isavga_write(struct dev_write_args *ap)
266 dev_t dev = ap->a_head.a_dev;
268 return vga_write(dev, VGA_SOFTC(VGA_UNIT(dev)), ap->a_uio, ap->a_ioflag);
272 isavga_ioctl(struct dev_ioctl_args *ap)
274 dev_t dev = ap->a_head.a_dev;
276 return vga_ioctl(dev, VGA_SOFTC(VGA_UNIT(dev)), ap->a_cmd, ap->a_data, ap->a_fflag, ap->a_cred);
280 isavga_mmap(struct dev_mmap_args *ap)
282 dev_t dev = ap->a_head.a_dev;
284 ap->a_result = vga_mmap(dev, VGA_SOFTC(VGA_UNIT(dev)), ap->a_offset, ap->a_nprot);
288 #endif /* FB_INSTALL_CDEV */