freebsd-dev/sys/dev/aic/aic_pccard.c
John Baldwin 4bb96a7418 Add locking to the aic(4) driver and mark it MPSAFE.
- Move 'free_scbs' into the softc rather than having it be a global list
  and convert it to an SLIST instead of a hand-rolled linked-list.
- Use device_printf() and device_get_unit() instead of storing the unit
  number in the softc.
- Remove use of explicit bus space handles and tags.
- Don't call device_set_desc() in the pccard attach routine, instead
  set a default description during the pccard probe if the matching
  product doesn't have a name.

Tested by:	no one
2012-10-15 16:09:59 +00:00

199 lines
5.1 KiB
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("$FreeBSD$");
#include <sys/param.h>
#include <sys/callout.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/module.h>
#include <sys/mutex.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <dev/aic/aicvar.h>
#include <dev/pccard/pccardvar.h>
#include "card_if.h"
#include "pccarddevs.h"
struct aic_pccard_softc {
struct aic_softc sc_aic;
struct resource *sc_port;
struct resource *sc_irq;
void *sc_ih;
};
static int aic_pccard_alloc_resources(device_t);
static void aic_pccard_release_resources(device_t);
static int aic_pccard_probe(device_t);
static int aic_pccard_attach(device_t);
static const struct pccard_product aic_pccard_products[] = {
PCMCIA_CARD(ADAPTEC, APA1460),
PCMCIA_CARD(ADAPTEC, APA1460A),
PCMCIA_CARD(NEWMEDIA, BUSTOASTER),
PCMCIA_CARD(NEWMEDIA, BUSTOASTER2),
PCMCIA_CARD(NEWMEDIA, BUSTOASTER3),
{ NULL }
};
#define AIC_PCCARD_PORTSIZE 0x20
static int
aic_pccard_alloc_resources(device_t dev)
{
struct aic_pccard_softc *sc = device_get_softc(dev);
int rid;
sc->sc_port = sc->sc_irq = NULL;
rid = 0;
sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
0ul, ~0ul, AIC_PCCARD_PORTSIZE, RF_ACTIVE);
if (!sc->sc_port)
return (ENOMEM);
rid = 0;
sc->sc_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
if (!sc->sc_irq) {
aic_pccard_release_resources(dev);
return (ENOMEM);
}
sc->sc_aic.dev = dev;
sc->sc_aic.res = sc->sc_port;
mtx_init(&sc->sc_aic.lock, "aic", NULL, MTX_DEF);
return (0);
}
static void
aic_pccard_release_resources(device_t dev)
{
struct aic_pccard_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);
sc->sc_port = sc->sc_irq = NULL;
mtx_destroy(&sc->sc_aic.lock);
}
static int
aic_pccard_probe(device_t dev)
{
const struct pccard_product *pp;
if ((pp = pccard_product_lookup(dev, aic_pccard_products,
sizeof(aic_pccard_products[0]), NULL)) != NULL) {
if (pp->pp_name != NULL)
device_set_desc(dev, pp->pp_name);
else
device_set_desc(dev,
"Adaptec 6260/6360 SCSI controller");
return (BUS_PROBE_DEFAULT);
}
return (ENXIO);
}
static int
aic_pccard_attach(device_t dev)
{
struct aic_pccard_softc *sc = device_get_softc(dev);
struct aic_softc *aic = &sc->sc_aic;
int error;
if (aic_pccard_alloc_resources(dev))
return (ENXIO);
if (aic_probe(aic)) {
aic_pccard_release_resources(dev);
return (ENXIO);
}
error = aic_attach(aic);
if (error) {
device_printf(dev, "attach failed\n");
aic_pccard_release_resources(dev);
return (error);
}
error = bus_setup_intr(dev, sc->sc_irq, INTR_TYPE_CAM | INTR_ENTROPY |
INTR_MPSAFE, NULL, aic_intr, aic, &sc->sc_ih);
if (error) {
device_printf(dev, "failed to register interrupt handler\n");
aic_pccard_release_resources(dev);
return (error);
}
return (0);
}
static int
aic_pccard_detach(device_t dev)
{
struct aic_pccard_softc *sc = device_get_softc(dev);
struct aic_softc *aic = &sc->sc_aic;
int error;
error = bus_teardown_intr(dev, sc->sc_irq, sc->sc_ih);
if (error) {
device_printf(dev, "failed to unregister interrupt handler\n");
}
error = aic_detach(aic);
if (error) {
device_printf(dev, "detach failed\n");
return (error);
}
aic_pccard_release_resources(dev);
return (0);
}
static device_method_t aic_pccard_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, aic_pccard_probe),
DEVMETHOD(device_attach, aic_pccard_attach),
DEVMETHOD(device_detach, aic_pccard_detach),
{ 0, 0 }
};
static driver_t aic_pccard_driver = {
"aic",
aic_pccard_methods, sizeof(struct aic_pccard_softc),
};
extern devclass_t aic_devclass;
MODULE_DEPEND(aic, cam, 1,1,1);
DRIVER_MODULE(aic, pccard, aic_pccard_driver, aic_devclass, 0, 0);