4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer as
12 * the first lines of this file unmodified.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * $FreeBSD: src/sys/isa/vga_isa.c,v 1.17 2000/01/29 15:08:56 peter Exp $
33 #include "opt_syscons.h" /* should be removed in the future, XXX */
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/malloc.h>
40 #include <sys/device.h>
44 #include <sys/thread.h>
49 #include <machine/md_var.h>
50 #include <machine/pc/bios.h>
52 #include <dev/video/fb/fbreg.h>
53 #include <dev/video/fb/vgareg.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
);
65 static int isavga_suspend(device_t dev
);
66 static int isavga_resume(device_t dev
);
68 static device_method_t isavga_methods
[] = {
69 DEVMETHOD(device_probe
, isavga_probe
),
70 DEVMETHOD(device_attach
, isavga_attach
),
71 DEVMETHOD(device_suspend
, isavga_suspend
),
72 DEVMETHOD(device_resume
, isavga_resume
),
74 DEVMETHOD(bus_print_child
, bus_generic_print_child
),
78 static driver_t isavga_driver
= {
84 DRIVER_MODULE(vga
, isa
, isavga_driver
, isavga_devclass
, NULL
, NULL
);
86 #ifdef FB_INSTALL_CDEV
88 static d_open_t isavga_open
;
89 static d_close_t isavga_close
;
90 static d_read_t isavga_read
;
91 static d_write_t isavga_write
;
92 static d_ioctl_t isavga_ioctl
;
93 static d_mmap_t isavga_mmap
;
95 static struct dev_ops isavga_ops
= {
96 { VGA_DRIVER_NAME
, -1, 0 },
97 .d_open
= isavga_open
,
98 .d_close
= isavga_close
,
99 .d_read
= isavga_read
,
100 .d_write
= isavga_write
,
101 .d_ioctl
= isavga_ioctl
,
102 .d_mmap
= isavga_mmap
,
105 #endif /* FB_INSTALL_CDEV */
108 isavga_probe(device_t dev
)
114 if (isa_get_vendorid(dev
))
117 device_set_desc(dev
, "Generic ISA VGA");
118 error
= vga_probe_unit(device_get_unit(dev
), &adp
, device_get_flags(dev
));
120 bus_set_resource(dev
, SYS_RES_IOPORT
, 0,
121 adp
.va_io_base
, adp
.va_io_size
, -1);
122 bus_set_resource(dev
, SYS_RES_MEMORY
, 0,
123 adp
.va_mem_base
, adp
.va_mem_size
, -1);
125 isa_set_port(dev
, adp
.va_io_base
);
126 isa_set_portsize(dev
, adp
.va_io_size
);
127 isa_set_maddr(dev
, adp
.va_mem_base
);
128 isa_set_msize(dev
, adp
.va_mem_size
);
135 isavga_attach(device_t dev
)
142 unit
= device_get_unit(dev
);
143 sc
= device_get_softc(dev
);
146 bus_alloc_resource(dev
, SYS_RES_IOPORT
, &rid
,
147 0, ~0, 0, RF_ACTIVE
| RF_SHAREABLE
);
149 bus_alloc_resource(dev
, SYS_RES_MEMORY
, &rid
,
150 0, ~0, 0, RF_ACTIVE
| RF_SHAREABLE
);
152 error
= vga_attach_unit(unit
, sc
, device_get_flags(dev
));
156 #ifdef FB_INSTALL_CDEV
157 /* attach a virtual frame buffer device */
158 sc
->devt
= make_dev(&isavga_ops
, VGA_MKMINOR(unit
), 0, 0, 02660, "vga%x", VGA_MKMINOR(unit
));
159 reference_dev(sc
->devt
);
160 error
= fb_attach(sc
->devt
, sc
->adp
);
163 #endif /* FB_INSTALL_CDEV */
166 (*vidsw
[sc
->adp
->va_index
]->diag
)(sc
->adp
, bootverbose
);
168 #if 0 /* experimental */
169 device_add_child(dev
, "fb", -1);
170 bus_generic_attach(dev
);
177 isavga_suspend(device_t dev
)
182 sc
= device_get_softc(dev
);
183 err
= bus_generic_suspend(dev
);
187 /* Save the video state across the suspend. */
188 if (sc
->state_buf
!= NULL
) {
189 kfree(sc
->state_buf
, M_TEMP
);
190 sc
->state_buf
= NULL
;
192 nbytes
= (*vidsw
[sc
->adp
->va_index
]->save_state
)(sc
->adp
, NULL
, 0);
195 sc
->state_buf
= kmalloc(nbytes
, M_TEMP
, M_NOWAIT
| M_ZERO
);
196 if (sc
->state_buf
== NULL
)
199 device_printf(dev
, "saving %d bytes of video state\n", nbytes
);
200 lwkt_gettoken(&tty_token
);
201 if ((*vidsw
[sc
->adp
->va_index
]->save_state
)(sc
->adp
, sc
->state_buf
,
203 device_printf(dev
, "failed to save state (nbytes=%d)\n",
205 kfree(sc
->state_buf
, M_TEMP
);
206 sc
->state_buf
= NULL
;
208 lwkt_reltoken(&tty_token
);
213 isavga_resume(device_t dev
)
217 sc
= device_get_softc(dev
);
218 if (sc
->state_buf
!= NULL
) {
219 if ((*vidsw
[sc
->adp
->va_index
]->load_state
)(sc
->adp
,
221 device_printf(dev
, "failed to reload state\n");
222 kfree(sc
->state_buf
, M_TEMP
);
223 sc
->state_buf
= NULL
;
226 bus_generic_resume(dev
);
230 #ifdef FB_INSTALL_CDEV
233 isavga_open(struct dev_open_args
*ap
)
235 cdev_t dev
= ap
->a_head
.a_dev
;
237 return vga_open(dev
, VGA_SOFTC(VGA_UNIT(dev
)), ap
->a_oflags
,
238 ap
->a_devtype
, ap
->a_cred
);
242 isavga_close(struct dev_close_args
*ap
)
244 cdev_t dev
= ap
->a_head
.a_dev
;
246 return vga_close(dev
, VGA_SOFTC(VGA_UNIT(dev
)),
247 ap
->a_fflag
, ap
->a_devtype
);
251 isavga_read(struct dev_read_args
*ap
)
253 cdev_t dev
= ap
->a_head
.a_dev
;
255 return vga_read(dev
, VGA_SOFTC(VGA_UNIT(dev
)), ap
->a_uio
, ap
->a_ioflag
);
259 isavga_write(struct dev_write_args
*ap
)
261 cdev_t dev
= ap
->a_head
.a_dev
;
263 return vga_write(dev
, VGA_SOFTC(VGA_UNIT(dev
)), ap
->a_uio
, ap
->a_ioflag
);
267 isavga_ioctl(struct dev_ioctl_args
*ap
)
269 cdev_t dev
= ap
->a_head
.a_dev
;
271 return vga_ioctl(dev
, VGA_SOFTC(VGA_UNIT(dev
)), ap
->a_cmd
, ap
->a_data
, ap
->a_fflag
, ap
->a_cred
);
275 isavga_mmap(struct dev_mmap_args
*ap
)
277 cdev_t dev
= ap
->a_head
.a_dev
;
279 ap
->a_result
= vga_mmap(dev
, VGA_SOFTC(VGA_UNIT(dev
)), ap
->a_offset
, ap
->a_nprot
);
283 #endif /* FB_INSTALL_CDEV */