273 lines
6.7 KiB
C
273 lines
6.7 KiB
C
/*-
|
|
* Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer as
|
|
* the first lines of this file unmodified.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "opt_vga.h"
|
|
#include "opt_fb.h"
|
|
#include "opt_syscons.h" /* should be removed in the future, XXX */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/module.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/fbio.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
|
|
#include <sys/rman.h>
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
|
|
#include <machine/md_var.h>
|
|
#ifdef __i386__
|
|
#include <machine/pc/bios.h>
|
|
#endif
|
|
|
|
#include <dev/fb/fbreg.h>
|
|
#include <dev/fb/vgareg.h>
|
|
|
|
#include <isa/isareg.h>
|
|
#include <isa/isavar.h>
|
|
|
|
#define VGA_SOFTC(unit) \
|
|
((vga_softc_t *)devclass_get_softc(isavga_devclass, unit))
|
|
|
|
static devclass_t isavga_devclass;
|
|
|
|
#ifdef FB_INSTALL_CDEV
|
|
|
|
static d_open_t isavga_open;
|
|
static d_close_t isavga_close;
|
|
static d_read_t isavga_read;
|
|
static d_write_t isavga_write;
|
|
static d_ioctl_t isavga_ioctl;
|
|
static d_mmap_t isavga_mmap;
|
|
|
|
static struct cdevsw isavga_cdevsw = {
|
|
.d_version = D_VERSION,
|
|
.d_flags = D_NEEDGIANT,
|
|
.d_open = isavga_open,
|
|
.d_close = isavga_close,
|
|
.d_read = isavga_read,
|
|
.d_write = isavga_write,
|
|
.d_ioctl = isavga_ioctl,
|
|
.d_mmap = isavga_mmap,
|
|
.d_name = VGA_DRIVER_NAME,
|
|
};
|
|
|
|
#endif /* FB_INSTALL_CDEV */
|
|
|
|
static void
|
|
isavga_identify(driver_t *driver, device_t parent)
|
|
{
|
|
BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, VGA_DRIVER_NAME, 0);
|
|
}
|
|
|
|
static int
|
|
isavga_probe(device_t dev)
|
|
{
|
|
video_adapter_t adp;
|
|
int error;
|
|
|
|
/* No pnp support */
|
|
if (isa_get_vendorid(dev))
|
|
return (ENXIO);
|
|
|
|
device_set_desc(dev, "Generic ISA VGA");
|
|
error = vga_probe_unit(device_get_unit(dev), &adp, device_get_flags(dev));
|
|
if (error == 0) {
|
|
bus_set_resource(dev, SYS_RES_IOPORT, 0,
|
|
adp.va_io_base, adp.va_io_size);
|
|
bus_set_resource(dev, SYS_RES_MEMORY, 0,
|
|
adp.va_mem_base, adp.va_mem_size);
|
|
#if 0
|
|
isa_set_port(dev, adp.va_io_base);
|
|
isa_set_portsize(dev, adp.va_io_size);
|
|
isa_set_maddr(dev, adp.va_mem_base);
|
|
isa_set_msize(dev, adp.va_mem_size);
|
|
#endif
|
|
}
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
isavga_attach(device_t dev)
|
|
{
|
|
vga_softc_t *sc;
|
|
int unit;
|
|
int rid;
|
|
int error;
|
|
|
|
unit = device_get_unit(dev);
|
|
sc = device_get_softc(dev);
|
|
|
|
rid = 0;
|
|
bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
|
|
0, ~0, 0, RF_ACTIVE | RF_SHAREABLE);
|
|
rid = 0;
|
|
bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
|
|
0, ~0, 0, RF_ACTIVE | RF_SHAREABLE);
|
|
|
|
error = vga_attach_unit(unit, sc, device_get_flags(dev));
|
|
if (error)
|
|
return error;
|
|
|
|
#ifdef FB_INSTALL_CDEV
|
|
/* attach a virtual frame buffer device */
|
|
error = fb_attach(VGA_MKMINOR(unit), sc->adp, &isavga_cdevsw);
|
|
if (error)
|
|
return error;
|
|
#endif /* FB_INSTALL_CDEV */
|
|
|
|
if (0 && bootverbose)
|
|
(*vidsw[sc->adp->va_index]->diag)(sc->adp, bootverbose);
|
|
|
|
#if 0 /* experimental */
|
|
device_add_child(dev, "fb", -1);
|
|
bus_generic_attach(dev);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
isavga_suspend(device_t dev)
|
|
{
|
|
vga_softc_t *sc;
|
|
int err, nbytes;
|
|
|
|
sc = device_get_softc(dev);
|
|
err = bus_generic_suspend(dev);
|
|
if (err)
|
|
return (err);
|
|
|
|
/* Save the video state across the suspend. */
|
|
if (sc->state_buf != NULL) {
|
|
free(sc->state_buf, M_TEMP);
|
|
sc->state_buf = NULL;
|
|
}
|
|
nbytes = (*vidsw[sc->adp->va_index]->save_state)(sc->adp, NULL, 0);
|
|
if (nbytes <= 0)
|
|
return (0);
|
|
sc->state_buf = malloc(nbytes, M_TEMP, M_NOWAIT | M_ZERO);
|
|
if (sc->state_buf == NULL)
|
|
return (0);
|
|
if (bootverbose)
|
|
device_printf(dev, "saving %d bytes of video state\n", nbytes);
|
|
if ((*vidsw[sc->adp->va_index]->save_state)(sc->adp, sc->state_buf,
|
|
nbytes) != 0) {
|
|
device_printf(dev, "failed to save state (nbytes=%d)\n",
|
|
nbytes);
|
|
free(sc->state_buf, M_TEMP);
|
|
sc->state_buf = NULL;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
isavga_resume(device_t dev)
|
|
{
|
|
vga_softc_t *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
if (sc->state_buf != NULL) {
|
|
if ((*vidsw[sc->adp->va_index]->load_state)(sc->adp,
|
|
sc->state_buf) != 0)
|
|
device_printf(dev, "failed to reload state\n");
|
|
free(sc->state_buf, M_TEMP);
|
|
sc->state_buf = NULL;
|
|
}
|
|
|
|
bus_generic_resume(dev);
|
|
return 0;
|
|
}
|
|
|
|
#ifdef FB_INSTALL_CDEV
|
|
|
|
static int
|
|
isavga_open(struct cdev *dev, int flag, int mode, struct thread *td)
|
|
{
|
|
return vga_open(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, td);
|
|
}
|
|
|
|
static int
|
|
isavga_close(struct cdev *dev, int flag, int mode, struct thread *td)
|
|
{
|
|
return vga_close(dev, VGA_SOFTC(VGA_UNIT(dev)), flag, mode, td);
|
|
}
|
|
|
|
static int
|
|
isavga_read(struct cdev *dev, struct uio *uio, int flag)
|
|
{
|
|
return vga_read(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag);
|
|
}
|
|
|
|
static int
|
|
isavga_write(struct cdev *dev, struct uio *uio, int flag)
|
|
{
|
|
return vga_write(dev, VGA_SOFTC(VGA_UNIT(dev)), uio, flag);
|
|
}
|
|
|
|
static int
|
|
isavga_ioctl(struct cdev *dev, u_long cmd, caddr_t arg, int flag, struct thread *td)
|
|
{
|
|
return vga_ioctl(dev, VGA_SOFTC(VGA_UNIT(dev)), cmd, arg, flag, td);
|
|
}
|
|
|
|
static int
|
|
isavga_mmap(struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr, int prot)
|
|
{
|
|
return vga_mmap(dev, VGA_SOFTC(VGA_UNIT(dev)), offset, paddr, prot);
|
|
}
|
|
|
|
#endif /* FB_INSTALL_CDEV */
|
|
|
|
static device_method_t isavga_methods[] = {
|
|
DEVMETHOD(device_identify, isavga_identify),
|
|
DEVMETHOD(device_probe, isavga_probe),
|
|
DEVMETHOD(device_attach, isavga_attach),
|
|
DEVMETHOD(device_suspend, isavga_suspend),
|
|
DEVMETHOD(device_resume, isavga_resume),
|
|
|
|
DEVMETHOD(bus_print_child, bus_generic_print_child),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t isavga_driver = {
|
|
VGA_DRIVER_NAME,
|
|
isavga_methods,
|
|
sizeof(vga_softc_t),
|
|
};
|
|
|
|
DRIVER_MODULE(vga, isa, isavga_driver, isavga_devclass, 0, 0);
|