Pull marc-pcmcia branch down to trunk.
This commit is contained in:
thorpej
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a111587eb8
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befea59210
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/* $NetBSD: i82365_isa.c,v 1.2 1997/10/16 23:21:41 thorpej Exp $ */
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#define PCICISADEBUG
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/*
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* Copyright (c) 1997 Marc Horowitz. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Marc Horowitz.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/extent.h>
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#include <sys/malloc.h>
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#include <vm/vm.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/isa/isareg.h>
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#include <dev/isa/isavar.h>
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#include <dev/pcmcia/pcmciareg.h>
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#include <dev/pcmcia/pcmciavar.h>
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#include <dev/pcmcia/pcmciachip.h>
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#include <dev/ic/i82365reg.h>
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#include <dev/ic/i82365var.h>
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#ifdef PCICISADEBUG
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int pcicisa_debug = 0 /* XXX */ ;
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#define DPRINTF(arg) if (pcicisa_debug) printf arg;
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#else
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#define DPRINTF(arg)
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#endif
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int pcic_isa_probe __P((struct device *, void *, void *));
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void pcic_isa_attach __P((struct device *, struct device *, void *));
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void *pcic_isa_chip_intr_establish __P((pcmcia_chipset_handle_t,
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struct pcmcia_function *, int, int (*) (void *), void *));
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void pcic_isa_chip_intr_disestablish __P((pcmcia_chipset_handle_t, void *));
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struct cfattach pcic_isa_ca = {
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sizeof(struct pcic_softc), pcic_isa_probe, pcic_isa_attach
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};
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static struct pcmcia_chip_functions pcic_isa_functions = {
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pcic_chip_mem_alloc,
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pcic_chip_mem_free,
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pcic_chip_mem_map,
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pcic_chip_mem_unmap,
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pcic_chip_io_alloc,
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pcic_chip_io_free,
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pcic_chip_io_map,
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pcic_chip_io_unmap,
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pcic_isa_chip_intr_establish,
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pcic_isa_chip_intr_disestablish,
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pcic_chip_socket_enable,
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pcic_chip_socket_disable,
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};
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int
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pcic_isa_probe(parent, match, aux)
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struct device *parent;
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void *match, *aux;
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{
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struct isa_attach_args *ia = aux;
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bus_space_tag_t iot = ia->ia_iot;
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bus_space_handle_t ioh, memh;
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int val, found;
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if (bus_space_map(iot, ia->ia_iobase, PCIC_IOSIZE, 0, &ioh))
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return (0);
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if (ia->ia_msize == -1)
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ia->ia_msize = PCIC_MEMSIZE;
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if (bus_space_map(ia->ia_memt, ia->ia_maddr, ia->ia_msize, 0, &memh))
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return (0);
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found = 0;
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/*
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* this could be done with a loop, but it would violate the
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* abstraction
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*/
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bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SA + PCIC_IDENT);
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val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
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if (pcic_ident_ok(val))
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found++;
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bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SB + PCIC_IDENT);
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val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
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if (pcic_ident_ok(val))
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found++;
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bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SA + PCIC_IDENT);
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val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
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if (pcic_ident_ok(val))
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found++;
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bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SB + PCIC_IDENT);
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val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
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if (pcic_ident_ok(val))
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found++;
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bus_space_unmap(iot, ioh, PCIC_IOSIZE);
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bus_space_unmap(ia->ia_memt, memh, ia->ia_msize);
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if (!found)
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return (0);
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ia->ia_iosize = PCIC_IOSIZE;
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return (1);
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}
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#ifndef PCIC_ISA_ALLOC_IOBASE
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#define PCIC_ISA_ALLOC_IOBASE 0
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#endif
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#ifndef PCIC_ISA_ALLOC_IOSIZE
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#define PCIC_ISA_ALLOC_IOSIZE 0
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#endif
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int pcic_isa_alloc_iobase = PCIC_ISA_ALLOC_IOBASE;
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int pcic_isa_alloc_iosize = PCIC_ISA_ALLOC_IOSIZE;
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void
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pcic_isa_attach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct pcic_softc *sc = (void *) self;
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struct isa_attach_args *ia = aux;
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isa_chipset_tag_t ic = ia->ia_ic;
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bus_space_tag_t iot = ia->ia_iot;
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bus_space_tag_t memt = ia->ia_memt;
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bus_space_handle_t ioh;
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bus_space_handle_t memh;
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bus_space_handle_t ioh_high;
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int i, iobuswidth, tmp1, tmp2;
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/* Map i/o space. */
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if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh))
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panic("pcic_isa_attach: can't map i/o space");
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/* Map mem space. */
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if (bus_space_map(memt, ia->ia_maddr, ia->ia_msize, 0, &memh))
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panic("pcic_isa_attach: can't map i/o space");
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sc->membase = ia->ia_maddr;
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sc->subregionmask = (1 << (ia->ia_msize / PCIC_MEM_PAGESIZE)) - 1;
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sc->intr_est = ic;
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sc->pct = (pcmcia_chipset_tag_t) & pcic_isa_functions;
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sc->iot = iot;
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sc->ioh = ioh;
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sc->memt = memt;
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sc->memh = memh;
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/*
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* allocate an irq. it will be used by both controllers. I could
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* use two different interrupts, but interrupts are relatively
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* scarce, shareable, and for PCIC controllers, very infrequent.
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*/
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if ((sc->irq = ia->ia_irq) == IRQUNK) {
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/* XXX CHECK RETURN VALUE */
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(void) isa_intr_alloc(ic, PCIC_CSC_INTR_IRQ_VALIDMASK,
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IST_EDGE, &sc->irq);
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printf(": using irq %d", sc->irq);
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}
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printf("\n");
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pcic_attach(sc);
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/*
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* figure out how wide the isa bus is. Do this by checking if the
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* pcic controller is mirrored 0x400 above where we expect it to be.
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*/
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iobuswidth = 12;
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/* Map i/o space. */
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if (bus_space_map(iot, ia->ia_iobase + 0x400, ia->ia_iosize, 0,
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&ioh_high))
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panic("pcic_isa_attach: can't map high i/o space");
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for (i = 0; i < PCIC_NSLOTS; i++) {
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if (sc->handle[i].flags & PCIC_FLAG_SOCKETP) {
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/*
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* read the ident flags from the normal space and
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* from the mirror, and compare them
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*/
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bus_space_write_1(iot, ioh, PCIC_REG_INDEX,
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sc->handle[i].sock + PCIC_IDENT);
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tmp1 = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
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bus_space_write_1(iot, ioh_high, PCIC_REG_INDEX,
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sc->handle[i].sock + PCIC_IDENT);
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tmp2 = bus_space_read_1(iot, ioh_high, PCIC_REG_DATA);
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if (tmp1 == tmp2)
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iobuswidth = 10;
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}
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}
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bus_space_free(iot, ioh_high, ia->ia_iosize);
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/*
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* XXX mycroft recommends I/O space range 0x400-0xfff . I should put
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* this in a header somewhere
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*/
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/*
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* XXX some hardware doesn't seem to grok addresses in 0x400 range--
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* apparently missing a bit or more of address lines. (e.g.
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* CIRRUS_PD672X with Linksys EthernetCard ne2000 clone in TI
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* TravelMate 5000--not clear which is at fault)
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*
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* Add a kludge to detect 10 bit wide buses and deal with them,
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* and also a config file option to override the probe.
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*/
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if (iobuswidth == 10) {
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sc->iobase = 0x300;
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sc->iosize = 0x0ff;
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} else {
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sc->iobase = 0x400;
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sc->iosize = 0xbff;
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}
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DPRINTF(("%s: bus_space_alloc range 0x%04lx-0x%04lx (probed)\n",
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sc->dev.dv_xname, (long) sc->iobase,
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(long) sc->iobase + sc->iosize));
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if (pcic_isa_alloc_iobase && pcic_isa_alloc_iosize) {
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sc->iobase = pcic_isa_alloc_iobase;
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sc->iosize = pcic_isa_alloc_iosize;
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DPRINTF(("%s: bus_space_alloc range 0x%04lx-0x%04lx "
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"(config override)\n", sc->dev.dv_xname, (long) sc->iobase,
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(long) sc->iobase + sc->iosize));
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}
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sc->ih = isa_intr_establish(ic, sc->irq, IST_EDGE, IPL_TTY,
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pcic_intr, sc);
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pcic_attach_sockets(sc);
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}
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/*
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* allow patching or kernel option file override of available IRQs. Useful if
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* order of probing would screw up other devices, or if PCIC hardware/cards
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* have trouble with certain interrupt lines.
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*/
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#ifndef PCIC_INTR_ALLOC_MASK
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#define PCIC_INTR_ALLOC_MASK 0xffff
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#endif
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int pcic_intr_alloc_mask = PCIC_INTR_ALLOC_MASK;
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void *
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pcic_isa_chip_intr_establish(pch, pf, ipl, fct, arg)
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pcmcia_chipset_handle_t pch;
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struct pcmcia_function *pf;
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int ipl;
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int (*fct) __P((void *));
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void *arg;
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{
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struct pcic_handle *h = (struct pcic_handle *) pch;
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int irq, ist;
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void *ih;
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int reg;
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if (pf->cfe->flags & PCMCIA_CFE_IRQLEVEL)
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ist = IST_LEVEL;
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else if (pf->cfe->flags & PCMCIA_CFE_IRQPULSE)
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ist = IST_PULSE;
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else
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ist = IST_LEVEL;
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if (isa_intr_alloc(h->sc->intr_est,
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PCIC_INTR_IRQ_VALIDMASK & pcic_intr_alloc_mask, ist, &irq))
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return (NULL);
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if ((ih = isa_intr_establish(h->sc->intr_est, irq, ist, ipl,
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fct, arg)) == NULL)
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return (NULL);
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reg = pcic_read(h, PCIC_INTR);
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reg &= ~PCIC_INTR_IRQ_MASK;
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reg |= irq;
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pcic_write(h, PCIC_INTR, reg);
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h->ih_irq = irq;
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printf("%s: card irq %d\n", h->pcmcia->dv_xname, irq);
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return (ih);
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}
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void
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pcic_isa_chip_intr_disestablish(pch, ih)
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pcmcia_chipset_handle_t pch;
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void *ih;
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{
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struct pcic_handle *h = (struct pcic_handle *) pch;
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int reg;
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h->ih_irq = 0;
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reg = pcic_read(h, PCIC_INTR);
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reg &= ~(PCIC_INTR_IRQ_MASK | PCIC_INTR_ENABLE);
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pcic_write(h, PCIC_INTR, reg);
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isa_intr_disestablish(h->sc->intr_est, ih);
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}
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