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/* $OpenBSD: i82365_isa.c,v 1.23 2017/09/08 05:36:52 deraadt Exp $ */
/* $NetBSD: i82365_isa.c,v 1.11 1998/06/09 07:25:00 thorpej Exp $ */
/*
* Copyright (c) 1997 Marc Horowitz. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Marc Horowitz.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/extent.h>
#include <sys/malloc.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <dev/isa/isareg.h>
#include <dev/isa/isavar.h>
#include <dev/pcmcia/pcmciareg.h>
#include <dev/pcmcia/pcmciavar.h>
#include <dev/pcmcia/pcmciachip.h>
#include <dev/ic/i82365reg.h>
#include <dev/ic/i82365var.h>
#include <dev/isa/i82365_isavar.h>
#ifdef PCICISADEBUG
#define DPRINTF(arg) printf arg;
#else
#define DPRINTF(arg)
#endif
int pcic_isa_probe(struct device *, void *, void *);
void pcic_isa_attach(struct device *, struct device *, void *);
struct cfattach pcic_isa_ca = {
sizeof(struct pcic_softc), pcic_isa_probe, pcic_isa_attach
};
static struct pcmcia_chip_functions pcic_isa_functions = {
pcic_chip_mem_alloc,
pcic_chip_mem_free,
pcic_chip_mem_map,
pcic_chip_mem_unmap,
pcic_chip_io_alloc,
pcic_chip_io_free,
pcic_chip_io_map,
pcic_chip_io_unmap,
pcic_isa_chip_intr_establish,
pcic_isa_chip_intr_disestablish,
pcic_isa_chip_intr_string,
pcic_chip_socket_enable,
pcic_chip_socket_disable,
};
int
pcic_isa_probe(parent, match, aux)
struct device *parent;
void *match, *aux;
{
struct isa_attach_args *ia = aux;
bus_space_tag_t memt = ia->ia_memt, iot = ia->ia_iot;
bus_space_handle_t ioh, memh;
bus_size_t msize;
int val, found;
/* Disallow wildcarded i/o address. */
if (ia->ia_iobase == -1 /* ISACF_PORT_DEFAULT */)
return (0);
if (bus_space_map(iot, ia->ia_iobase, PCIC_IOSIZE, 0, &ioh))
return (0);
if (ia->ia_msize == -1)
ia->ia_msize = PCIC_MEMSIZE;
msize = ia->ia_msize;
if (bus_space_map(memt, ia->ia_maddr, ia->ia_msize, 0, &memh)) {
if (ia->ia_msize > PCIC_MEMSIZE &&
!bus_space_map(memt, ia->ia_maddr, PCIC_MEMSIZE, 0, &memh))
msize = PCIC_MEMSIZE;
else
return (0);
}
found = 0;
/*
* this could be done with a loop, but it would violate the
* abstraction
*/
bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SA + PCIC_IDENT);
val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
if (pcic_ident_ok(val))
found++;
bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SB + PCIC_IDENT);
val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
if (pcic_ident_ok(val))
found++;
bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SA + PCIC_IDENT);
val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
if (pcic_ident_ok(val))
found++;
bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SB + PCIC_IDENT);
val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
if (pcic_ident_ok(val))
found++;
bus_space_unmap(iot, ioh, PCIC_IOSIZE);
bus_space_unmap(memt, memh, msize);
if (!found)
return (0);
ia->ia_iosize = PCIC_IOSIZE;
ia->ia_msize = msize;
return (1);
}
void
pcic_isa_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct pcic_softc *sc = (void *)self;
struct pcic_handle *h;
struct isa_attach_args *ia = aux;
isa_chipset_tag_t ic = ia->ia_ic;
bus_space_tag_t iot = ia->ia_iot;
bus_space_tag_t memt = ia->ia_memt;
bus_space_handle_t ioh;
bus_space_handle_t memh;
int irq, i;
/* Map i/o space. */
if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh)) {
printf(": can't map i/o space\n");
return;
}
/* Map mem space. */
if (bus_space_map(memt, ia->ia_maddr, ia->ia_msize, 0, &memh)) {
printf(": can't map mem space\n");
return;
}
sc->membase = ia->ia_maddr;
sc->subregionmask = (1 << (ia->ia_msize / PCIC_MEM_PAGESIZE)) - 1;
sc->intr_est = ic;
sc->pct = (pcmcia_chipset_tag_t)&pcic_isa_functions;
sc->iot = iot;
sc->ioh = ioh;
sc->memt = memt;
sc->memh = memh;
printf("\n");
pcic_attach(sc);
pcic_isa_bus_width_probe(sc, iot, ioh, ia->ia_iobase, ia->ia_iosize);
pcic_attach_sockets(sc);
/*
* Allocate an irq. It will be used by both controllers. I could
* use two different interrupts, but interrupts are relatively
* scarce, shareable, and for PCIC controllers, very infrequent.
*/
irq = ia->ia_irq;
if (irq == IRQUNK)
irq = pcic_intr_find(sc, IST_EDGE);
if (irq) {
sc->ih = isa_intr_establish(ic, irq, IST_EDGE, IPL_TTY,
pcic_intr, sc, sc->dev.dv_xname);
if (!sc->ih)
irq = 0;
}
sc->irq = irq;
if (irq) {
printf("%s: irq %d, ", sc->dev.dv_xname, irq);
/* Set up the pcic to interrupt on card detect. */
for (i = 0; i < PCIC_NSLOTS; i++) {
h = &sc->handle[i];
if (h->flags & PCIC_FLAG_SOCKETP) {
pcic_write(h, PCIC_CSC_INTR,
(sc->irq << PCIC_CSC_INTR_IRQ_SHIFT) |
PCIC_CSC_INTR_CD_ENABLE);
}
}
} else
printf("%s: no irq, ", sc->dev.dv_xname);
printf("polling enabled\n");
if (sc->poll_established == 0) {
timeout_set(&sc->poll_timeout, pcic_poll_intr, sc);
timeout_add_msec(&sc->poll_timeout, 500);
sc->poll_established = 1;
}
}
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