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/*-
* Copyright (c) 2005 Poul-Henning Kamp <phk@FreeBSD.org>
* 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.
*
* Driver for GPIB cards based on NEC µPD7210 and compatibles.
*
* This driver just hooks up to the hardware and leaves all the interesting
* stuff to upd7210.c.
*
* Supported hardware:
* PCIIA compatible cards.
*
* Tested and known working:
* "B&C Microsystems PC488A-0"
*
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <isa/isavar.h>
#define UPD7210_HW_DRIVER
#include <dev/ieee488/upd7210.h>
struct pcii_softc {
int foo;
struct resource *res[3];
void *intr_handler;
struct upd7210 upd7210;
};
static devclass_t pcii_devclass;
static int pcii_probe(device_t dev);
static int pcii_attach(device_t dev);
static device_method_t pcii_methods[] = {
DEVMETHOD(device_probe, pcii_probe),
DEVMETHOD(device_attach, pcii_attach),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
{ 0, 0 }
};
static struct resource_spec pcii_res_spec[] = {
{ SYS_RES_IRQ, 0, RF_ACTIVE | RF_SHAREABLE},
{ SYS_RES_DRQ, 0, RF_ACTIVE | RF_SHAREABLE | RF_OPTIONAL},
{ SYS_RES_IOPORT, 0, RF_ACTIVE},
{ -1, 0, 0 }
};
static driver_t pcii_driver = {
"pcii",
pcii_methods,
sizeof(struct pcii_softc),
};
static int
pcii_probe(device_t dev)
{
int rid, i, j;
u_long start, count;
int error = 0;
struct pcii_softc *sc;
device_set_desc(dev, "PCII IEEE-4888 controller");
sc = device_get_softc(dev);
rid = 0;
if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &start, &count) != 0)
return ENXIO;
if ((start & 0x3ff) != 0x2e1)
return (ENXIO);
count = 1;
if (bus_set_resource(dev, SYS_RES_IOPORT, rid, start, count) != 0)
return ENXIO;
error = bus_alloc_resources(dev, pcii_res_spec, sc->res);
if (error)
return (error);
error = ENXIO;
for (i = 0; i < 8; i++) {
j = bus_read_1(sc->res[2], i * 0x400);
if (j != 0x00 && j != 0xff)
error = 0;
}
if (!error) {
bus_write_1(sc->res[2], 3 * 0x400, 0x55);
if (bus_read_1(sc->res[2], 3 * 0x400) != 0x55)
error = ENXIO;
}
if (!error) {
bus_write_1(sc->res[2], 3 * 0x400, 0xaa);
if (bus_read_1(sc->res[2], 3 * 0x400) != 0xaa)
error = ENXIO;
}
bus_release_resources(dev, pcii_res_spec, sc->res);
return (error);
}
static int
pcii_attach(device_t dev)
{
struct pcii_softc *sc;
int unit;
int rid;
int error = 0;
unit = device_get_unit(dev);
sc = device_get_softc(dev);
memset(sc, 0, sizeof *sc);
device_set_desc(dev, "PCII IEEE-4888 controller");
error = bus_alloc_resources(dev, pcii_res_spec, sc->res);
if (error)
return (error);
error = bus_setup_intr(dev, sc->res[0],
INTR_TYPE_MISC | INTR_MPSAFE, NULL,
upd7210intr, &sc->upd7210, &sc->intr_handler);
if (error) {
bus_release_resources(dev, pcii_res_spec, sc->res);
return (error);
}
for (rid = 0; rid < 8; rid++) {
sc->upd7210.reg_res[rid] = sc->res[2];
sc->upd7210.reg_offset[rid] = 0x400 * rid;
}
if (sc->res[1] == NULL)
sc->upd7210.dmachan = -1;
else
sc->upd7210.dmachan = rman_get_start(sc->res[1]);
upd7210attach(&sc->upd7210);
return (error);
}
DRIVER_MODULE(pcii, isa, pcii_driver, pcii_devclass, 0, 0);
DRIVER_MODULE(pcii, acpi, pcii_driver, pcii_devclass, 0, 0);
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