FreeBSD-5.3/sys/dev/aic/aic_isa.c
/*-
* Copyright (c) 1999 Luoqi Chen.
* 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.
* 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 AUTHOR AND CONTRIBUTORS ``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 AUTHOR OR CONTRIBUTORS 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: src/sys/dev/aic/aic_isa.c,v 1.11 2004/03/17 17:50:25 njl Exp $");
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <isa/isavar.h>
#include <dev/aic/aic6360reg.h>
#include <dev/aic/aicvar.h>
struct aic_isa_softc {
struct aic_softc sc_aic;
struct resource *sc_port;
struct resource *sc_irq;
struct resource *sc_drq;
void *sc_ih;
};
static int aic_isa_alloc_resources(device_t);
static void aic_isa_release_resources(device_t);
static int aic_isa_probe(device_t);
static int aic_isa_attach(device_t);
static u_int aic_isa_ports[] = { 0x340, 0x140 };
#define AIC_ISA_NUMPORTS (sizeof(aic_isa_ports) / sizeof(aic_isa_ports[0]))
#define AIC_ISA_PORTSIZE 0x20
static struct isa_pnp_id aic_ids[] = {
{ 0x15309004, "Adaptec AHA-1530P" },
{ 0x15209004, "Adaptec AHA-1520P" },
{ 0 }
};
static int
aic_isa_alloc_resources(device_t dev)
{
struct aic_isa_softc *sc = device_get_softc(dev);
int rid;
sc->sc_port = sc->sc_irq = sc->sc_drq = 0;
rid = 0;
sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
0ul, ~0ul, AIC_ISA_PORTSIZE, RF_ACTIVE);
if (!sc->sc_port) {
device_printf(dev, "I/O port allocation failed\n");
return (ENOMEM);
}
if (isa_get_irq(dev) != -1) {
rid = 0;
sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
RF_ACTIVE);
if (!sc->sc_irq) {
device_printf(dev, "IRQ allocation failed\n");
aic_isa_release_resources(dev);
return (ENOMEM);
}
}
if (isa_get_drq(dev) != -1) {
rid = 0;
sc->sc_drq = bus_alloc_resource_any(dev, SYS_RES_DRQ, &rid,
RF_ACTIVE);
if (!sc->sc_drq) {
device_printf(dev, "DRQ allocation failed\n");
aic_isa_release_resources(dev);
return (ENOMEM);
}
}
sc->sc_aic.unit = device_get_unit(dev);
sc->sc_aic.tag = rman_get_bustag(sc->sc_port);
sc->sc_aic.bsh = rman_get_bushandle(sc->sc_port);
return (0);
}
static void
aic_isa_release_resources(device_t dev)
{
struct aic_isa_softc *sc = device_get_softc(dev);
if (sc->sc_port)
bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->sc_port);
if (sc->sc_irq)
bus_release_resource(dev, SYS_RES_IRQ, 0, sc->sc_irq);
if (sc->sc_drq)
bus_release_resource(dev, SYS_RES_DRQ, 0, sc->sc_drq);
sc->sc_port = sc->sc_irq = sc->sc_drq = 0;
}
static int
aic_isa_probe(device_t dev)
{
struct aic_isa_softc *sc = device_get_softc(dev);
struct aic_softc *aic = &sc->sc_aic;
int numports, i;
u_int port, *ports;
u_int8_t porta;
if (ISA_PNP_PROBE(device_get_parent(dev), dev, aic_ids) == ENXIO)
return (ENXIO);
port = isa_get_port(dev);
if (port != -1) {
ports = &port;
numports = 1;
} else {
ports = aic_isa_ports;
numports = AIC_ISA_NUMPORTS;
}
for (i = 0; i < numports; i++) {
if (bus_set_resource(dev, SYS_RES_IOPORT, 0, ports[i],
AIC_ISA_PORTSIZE))
continue;
if (aic_isa_alloc_resources(dev))
continue;
if (!aic_probe(aic)) {
aic_isa_release_resources(dev);
break;
}
aic_isa_release_resources(dev);
}
if (i == numports)
return (ENXIO);
porta = aic_inb(aic, PORTA);
if (isa_get_irq(dev) == -1)
bus_set_resource(dev, SYS_RES_IRQ, 0, PORTA_IRQ(porta), 1);
if ((aic->flags & AIC_DMA_ENABLE) && isa_get_drq(dev) == -1)
bus_set_resource(dev, SYS_RES_DRQ, 0, PORTA_DRQ(porta), 1);
device_set_desc(dev, "Adaptec 6260/6360 SCSI controller");
return (0);
}
static int
aic_isa_attach(device_t dev)
{
struct aic_isa_softc *sc = device_get_softc(dev);
struct aic_softc *aic = &sc->sc_aic;
int error;
error = aic_isa_alloc_resources(dev);
if (error) {
device_printf(dev, "resource allocation failed\n");
return (error);
}
error = aic_attach(aic);
if (error) {
device_printf(dev, "attach failed\n");
aic_isa_release_resources(dev);
return (error);
}
error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM|INTR_ENTROPY,
aic_intr, aic, &sc->sc_ih);
if (error) {
device_printf(dev, "failed to register interrupt handler\n");
aic_isa_release_resources(dev);
return (error);
}
return (0);
}
static int
aic_isa_detach(device_t dev)
{
struct aic_isa_softc *sc = device_get_softc(dev);
struct aic_softc *aic = &sc->sc_aic;
int error;
error = aic_detach(aic);
if (error) {
device_printf(dev, "detach failed\n");
return (error);
}
error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
if (error) {
device_printf(dev, "failed to unregister interrupt handler\n");
}
aic_isa_release_resources(dev);
return (0);
}
static device_method_t aic_isa_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, aic_isa_probe),
DEVMETHOD(device_attach, aic_isa_attach),
DEVMETHOD(device_detach, aic_isa_detach),
{ 0, 0 }
};
static driver_t aic_isa_driver = {
"aic",
aic_isa_methods, sizeof(struct aic_isa_softc),
};
extern devclass_t aic_devclass;
MODULE_DEPEND(aic, cam, 1,1,1);
DRIVER_MODULE(aic, isa, aic_isa_driver, aic_devclass, 0, 0);