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/*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/conf.h>
#include <sys/fcntl.h>
#include <sys/bio.h>
#include <sys/cdio.h>
#include <sys/bus.h>
#include <sys/mutex.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <isa/isavar.h>
#include <dev/scd/scdreg.h>
#include <dev/scd/scdvar.h>
static int scd_isa_probe (device_t);
static int scd_isa_attach (device_t);
static int scd_isa_detach (device_t);
static int scd_alloc_resources (device_t);
static void scd_release_resources (device_t);
static int
scd_isa_probe (device_t dev)
{
struct scd_softc * sc;
int error;
/* No pnp support */
if (isa_get_vendorid(dev))
return (ENXIO);
/* IO port must be configured. */
if (bus_get_resource_start(dev, SYS_RES_IOPORT, 0) == 0)
return (ENXIO);
sc = device_get_softc(dev);
sc->dev = dev;
sc->port_rid = 0;
sc->port_type = SYS_RES_IOPORT;
error = scd_alloc_resources(dev);
if (error)
goto fail;
error = scd_probe(sc);
if (error) {
device_printf(dev, "Probe failed.\n");
goto fail;
}
device_set_desc(dev, sc->data.name);
fail:
scd_release_resources(dev);
return (error);
}
static int
scd_isa_attach (device_t dev)
{
struct scd_softc * sc;
int error;
sc = device_get_softc(dev);
error = 0;
sc->dev = dev;
sc->port_rid = 0;
sc->port_type = SYS_RES_IOPORT;
error = scd_alloc_resources(dev);
if (error)
goto fail;
error = scd_probe(sc);
if (error) {
device_printf(dev, "Re-Probe failed.\n");
goto fail;
}
error = scd_attach(sc);
if (error) {
device_printf(dev, "Attach failed.\n");
goto fail;
}
return (0);
fail:
scd_release_resources(dev);
return (error);
}
static int
scd_isa_detach (device_t dev)
{
struct scd_softc * sc;
int error;
sc = device_get_softc(dev);
error = 0;
destroy_dev(sc->scd_dev_t);
scd_release_resources(dev);
return (error);
}
static int
scd_alloc_resources (device_t dev)
{
struct scd_softc * sc;
int error;
sc = device_get_softc(dev);
error = 0;
if (sc->port_type) {
sc->port = bus_alloc_resource_any(dev, sc->port_type,
&sc->port_rid, RF_ACTIVE);
if (sc->port == NULL) {
device_printf(dev, "Unable to allocate PORT resource.\n");
error = ENOMEM;
goto bad;
}
sc->port_bst = rman_get_bustag(sc->port);
sc->port_bsh = rman_get_bushandle(sc->port);
}
mtx_init(&sc->mtx, device_get_nameunit(dev),
"Interrupt lock", MTX_DEF | MTX_RECURSE);
bad:
return (error);
}
void
scd_release_resources (device_t dev)
{
struct scd_softc * sc;
sc = device_get_softc(dev);
if (sc->port) {
bus_release_resource(dev, sc->port_type, sc->port_rid, sc->port);
sc->port_bst = 0;
sc->port_bsh = 0;
}
if (mtx_initialized(&sc->mtx) != 0)
mtx_destroy(&sc->mtx);
return;
}
static device_method_t scd_isa_methods[] = {
DEVMETHOD(device_probe, scd_isa_probe),
DEVMETHOD(device_attach, scd_isa_attach),
DEVMETHOD(device_detach, scd_isa_detach),
{ 0, 0 }
};
static driver_t scd_isa_driver = {
"scd",
scd_isa_methods,
sizeof(struct scd_softc)
};
static devclass_t scd_devclass;
DRIVER_MODULE(scd, isa, scd_isa_driver, scd_devclass, NULL, 0);
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