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 1.14 2008/03/20 21:25:30 swildner 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>
47 #include <machine/md_var.h>
48 #include <machine/pc/bios.h>
50 #include <dev/video/fb/fbreg.h>
51 #include <dev/video/fb/vgareg.h>
56 #define VGA_SOFTC(unit) \
57 ((vga_softc_t *)devclass_get_softc(isavga_devclass, unit))
59 static devclass_t isavga_devclass
;
61 static int isavga_probe(device_t dev
);
62 static int isavga_attach(device_t dev
);
63 static int isavga_suspend(device_t dev
);
64 static int isavga_resume(device_t dev
);
66 static device_method_t isavga_methods
[] = {
67 DEVMETHOD(device_probe
, isavga_probe
),
68 DEVMETHOD(device_attach
, isavga_attach
),
69 DEVMETHOD(device_suspend
, isavga_suspend
),
70 DEVMETHOD(device_resume
, isavga_resume
),
72 DEVMETHOD(bus_print_child
, bus_generic_print_child
),
76 static driver_t isavga_driver
= {
82 DRIVER_MODULE(vga
, isa
, isavga_driver
, isavga_devclass
, 0, 0);
84 #ifdef FB_INSTALL_CDEV
86 static d_open_t isavga_open
;
87 static d_close_t isavga_close
;
88 static d_read_t isavga_read
;
89 static d_write_t isavga_write
;
90 static d_ioctl_t isavga_ioctl
;
91 static d_mmap_t isavga_mmap
;
93 static struct dev_ops isavga_ops
= {
94 { VGA_DRIVER_NAME
, -1, 0 },
95 .d_open
= isavga_open
,
96 .d_close
= isavga_close
,
97 .d_read
= isavga_read
,
98 .d_write
= isavga_write
,
99 .d_ioctl
= isavga_ioctl
,
100 .d_mmap
= isavga_mmap
,
103 #endif /* FB_INSTALL_CDEV */
106 isavga_probe(device_t dev
)
112 if (isa_get_vendorid(dev
))
115 device_set_desc(dev
, "Generic ISA VGA");
116 error
= vga_probe_unit(device_get_unit(dev
), &adp
, device_get_flags(dev
));
118 bus_set_resource(dev
, SYS_RES_IOPORT
, 0,
119 adp
.va_io_base
, adp
.va_io_size
);
120 bus_set_resource(dev
, SYS_RES_MEMORY
, 0,
121 adp
.va_mem_base
, adp
.va_mem_size
);
123 isa_set_port(dev
, adp
.va_io_base
);
124 isa_set_portsize(dev
, adp
.va_io_size
);
125 isa_set_maddr(dev
, adp
.va_mem_base
);
126 isa_set_msize(dev
, adp
.va_mem_size
);
133 isavga_attach(device_t dev
)
140 unit
= device_get_unit(dev
);
141 sc
= device_get_softc(dev
);
144 bus_alloc_resource(dev
, SYS_RES_IOPORT
, &rid
,
145 0, ~0, 0, RF_ACTIVE
| RF_SHAREABLE
);
147 bus_alloc_resource(dev
, SYS_RES_MEMORY
, &rid
,
148 0, ~0, 0, RF_ACTIVE
| RF_SHAREABLE
);
150 error
= vga_attach_unit(unit
, sc
, device_get_flags(dev
));
154 #ifdef FB_INSTALL_CDEV
155 /* attach a virtual frame buffer device */
156 dev_ops_add(&isavga_ops
, VGA_MKMINOR(-1), VGA_MKMINOR(unit
));
157 sc
->devt
= make_dev(&isavga_ops
, VGA_MKMINOR(unit
), 0, 0, 02660, "vga%x", VGA_MKMINOR(unit
));
158 reference_dev(sc
->devt
);
159 error
= fb_attach(sc
->devt
, sc
->adp
);
162 #endif /* FB_INSTALL_CDEV */
165 (*vidsw
[sc
->adp
->va_index
]->diag
)(sc
->adp
, bootverbose
);
168 device_add_child(dev
, "fb", -1);
169 bus_generic_attach(dev
);
176 isavga_suspend(device_t dev
)
181 sc
= device_get_softc(dev
);
182 err
= bus_generic_suspend(dev
);
186 /* Save the video state across the suspend. */
187 if (sc
->state_buf
!= NULL
) {
188 kfree(sc
->state_buf
, M_TEMP
);
189 sc
->state_buf
= NULL
;
191 nbytes
= (*vidsw
[sc
->adp
->va_index
]->save_state
)(sc
->adp
, NULL
, 0);
194 sc
->state_buf
= kmalloc(nbytes
, M_TEMP
, M_NOWAIT
| M_ZERO
);
195 if (sc
->state_buf
== NULL
)
198 device_printf(dev
, "saving %d bytes of video state\n", nbytes
);
199 if ((*vidsw
[sc
->adp
->va_index
]->save_state
)(sc
->adp
, sc
->state_buf
,
201 device_printf(dev
, "failed to save state (nbytes=%d)\n",
203 kfree(sc
->state_buf
, M_TEMP
);
204 sc
->state_buf
= NULL
;
210 isavga_resume(device_t dev
)
214 sc
= device_get_softc(dev
);
215 if (sc
->state_buf
!= NULL
) {
216 if ((*vidsw
[sc
->adp
->va_index
]->load_state
)(sc
->adp
,
218 device_printf(dev
, "failed to reload state\n");
219 kfree(sc
->state_buf
, M_TEMP
);
220 sc
->state_buf
= NULL
;
223 bus_generic_resume(dev
);
227 #ifdef FB_INSTALL_CDEV
230 isavga_open(struct dev_open_args
*ap
)
232 cdev_t dev
= ap
->a_head
.a_dev
;
234 return vga_open(dev
, VGA_SOFTC(VGA_UNIT(dev
)), ap
->a_oflags
,
235 ap
->a_devtype
, ap
->a_cred
);
239 isavga_close(struct dev_close_args
*ap
)
241 cdev_t dev
= ap
->a_head
.a_dev
;
243 return vga_close(dev
, VGA_SOFTC(VGA_UNIT(dev
)),
244 ap
->a_fflag
, ap
->a_devtype
);
248 isavga_read(struct dev_read_args
*ap
)
250 cdev_t dev
= ap
->a_head
.a_dev
;
252 return vga_read(dev
, VGA_SOFTC(VGA_UNIT(dev
)), ap
->a_uio
, ap
->a_ioflag
);
256 isavga_write(struct dev_write_args
*ap
)
258 cdev_t dev
= ap
->a_head
.a_dev
;
260 return vga_write(dev
, VGA_SOFTC(VGA_UNIT(dev
)), ap
->a_uio
, ap
->a_ioflag
);
264 isavga_ioctl(struct dev_ioctl_args
*ap
)
266 cdev_t dev
= ap
->a_head
.a_dev
;
268 return vga_ioctl(dev
, VGA_SOFTC(VGA_UNIT(dev
)), ap
->a_cmd
, ap
->a_data
, ap
->a_fflag
, ap
->a_cred
);
272 isavga_mmap(struct dev_mmap_args
*ap
)
274 cdev_t dev
= ap
->a_head
.a_dev
;
276 ap
->a_result
= vga_mmap(dev
, VGA_SOFTC(VGA_UNIT(dev
)), ap
->a_offset
, ap
->a_nprot
);
280 #endif /* FB_INSTALL_CDEV */