/* $NetBSD: i82365_isa.c,v 1.36 2022/09/25 17:09:36 thorpej Exp $ */

/* $NetBSD: i82365_isa.c,v 1.36 2022/09/25 17:09:36 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/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: i82365_isa.c,v 1.36 2022/09/25 17:09:36 thorpej Exp $");

#define PCICISADEBUG

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/extent.h>

#include <sys/bus.h>
#include <sys/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
int pcicisa_debug = 0;
#define DPRINTF(arg) if (pcicisa_debug) printf arg;
#else
#define DPRINTF(arg)
#endif

int pcic_isa_probe(device_t, cfdata_t, void *);
void pcic_isa_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(pcic_isa, sizeof(struct pcic_isa_softc),
pcic_isa_probe, pcic_isa_attach, NULL, NULL);

static const 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_chip_socket_enable,
pcic_chip_socket_disable,
pcic_chip_socket_settype,
NULL,
};

int
pcic_isa_probe(device_t parent, cfdata_t match, void *aux)
{
struct isa_attach_args *ia = aux;
bus_space_tag_t iot = ia->ia_iot;
bus_space_handle_t ioh, memh;
int val, found, msize;

if (ia->ia_nio < 1)
return 0;
if (ia->ia_niomem < 1)
return 0;

if (ISA_DIRECT_CONFIG(ia))
return 0;

/* Disallow wildcarded i/o address. */
if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT)
return 0;
if (ia->ia_iomem[0].ir_addr == ISA_UNKNOWN_IOMEM)
return 0;

if (bus_space_map(iot, ia->ia_io[0].ir_addr, PCIC_IOSIZE, 0, &ioh))
return 0;

if (ia->ia_iomem[0].ir_size == ISA_UNKNOWN_IOSIZ)
msize = PCIC_MEMSIZE;
else
msize = ia->ia_iomem[0].ir_size;

if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr,
msize, 0, &memh)) {
bus_space_unmap(iot, ioh, PCIC_IOSIZE);
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(ia->ia_memt, memh, msize);

if (!found)
return 0;

ia->ia_nio = 1;
ia->ia_io[0].ir_size = PCIC_IOSIZE;

ia->ia_niomem = 1;
ia->ia_iomem[0].ir_size = msize;

/* IRQ is special. */

ia->ia_ndrq = 0;

return 1;
}

void
pcic_isa_attach(device_t parent, device_t self, void *aux)
{
struct pcic_isa_softc *isc = device_private(self);
struct pcic_softc *sc = &isc->sc_pcic;
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;

aprint_naive("\n");
sc->dev = self;

/* Map i/o space. */
if (bus_space_map(iot, ia->ia_io[0].ir_addr, PCIC_IOSIZE, 0, &ioh)) {
aprint_error(": can't map i/o space\n");
return;
}

/* Map mem space. */
if (bus_space_map(memt, ia->ia_iomem[0].ir_addr,
ia->ia_iomem[0].ir_size, 0, &memh)) {
aprint_error(": can't map mem space\n");
return;
}

sc->membase = ia->ia_iomem[0].ir_addr;
sc->subregionmask =
(1 << (ia->ia_iomem[0].ir_size / PCIC_MEM_PAGESIZE)) - 1;

isc->sc_ic = ic;
sc->pct = &pcic_isa_functions;

sc->iot = iot;
sc->ioh = ioh;
sc->memt = memt;
sc->memh = memh;
if (ia->ia_nirq > 0)
sc->irq = ia->ia_irq[0].ir_irq;
else
sc->irq = ISA_UNKNOWN_IRQ;

aprint_normal("\n");

pcic_attach(sc);
pcic_isa_bus_width_probe(sc, iot, ioh, ia->ia_io[0].ir_addr,
PCIC_IOSIZE);
pcic_attach_sockets(sc);

config_interrupts(self, pcic_isa_config_interrupts);
}