267 lines
6.5 KiB
C
267 lines
6.5 KiB
C
/* $NetBSD: pcic_shb.c,v 1.2 1999/09/14 10:22:35 tsubai Exp $ */
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#define PCICSHBDEBUG
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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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/*
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* PCMCIA I/F for SH
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*
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* T.Horiuichi
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* Brains Corp. 1998.8.25
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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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#if 0
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#include <dev/isa/isareg.h>
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#include <dev/isa/isavar.h>
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#endif
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#include <machine/shbvar.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 <sh3/dev/shpcicreg.h>
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#include <sh3/dev/shpcicvar.h>
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#ifdef TODO
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#include <dev/isa/i82365_isavar.h>
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#endif
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#ifndef PCIC_SHB_INTR_ALLOC_MASK
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#define PCIC_SHB_INTR_ALLOC_MASK 0xfbff
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#endif
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int pcic_shb_intr_alloc_mask = PCIC_SHB_INTR_ALLOC_MASK;
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#ifdef PCICSHBDEBUG
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int pcicshb_debug = 1 /* XXX */ ;
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#define DPRINTF(arg) if (pcicshb_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_shb_probe __P((struct device *, struct cfdata *, void *));
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void pcic_shb_attach __P((struct device *, struct device *, void *));
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void *pcic_shb_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_shb_chip_intr_disestablish __P((pcmcia_chipset_handle_t, void *));
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struct cfattach pcic_shb_ca = {
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sizeof(struct shpcic_softc),
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pcic_shb_probe,
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pcic_shb_attach
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};
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static struct pcmcia_chip_functions pcic_shb_functions = {
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shpcic_chip_mem_alloc,
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shpcic_chip_mem_free,
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shpcic_chip_mem_map,
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shpcic_chip_mem_unmap,
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shpcic_chip_io_alloc,
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shpcic_chip_io_free,
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shpcic_chip_io_map,
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shpcic_chip_io_unmap,
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pcic_shb_chip_intr_establish,
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pcic_shb_chip_intr_disestablish,
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shpcic_chip_socket_enable,
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shpcic_chip_socket_disable,
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};
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int
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pcic_shb_probe(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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#if 0
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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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/* Disallow wildcarded i/o address. */
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if (ia->ia_iobase == SHBCF_PORT_DEFAULT)
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return (0);
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if (bus_space_map(iot, ia->ia_iobase, SHPCIC_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 = SHPCIC_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, SHPCIC_REG_INDEX, C0SA + SHPCIC_IDENT);
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val = bus_space_read_1(iot, ioh, SHPCIC_REG_DATA);
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if (shpcic_ident_ok(val))
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found++;
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bus_space_write_1(iot, ioh, SHPCIC_REG_INDEX, C0SB + SHPCIC_IDENT);
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val = bus_space_read_1(iot, ioh, SHPCIC_REG_DATA);
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if (shpcic_ident_ok(val))
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found++;
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bus_space_write_1(iot, ioh, SHPCIC_REG_INDEX, C1SA + SHPCIC_IDENT);
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val = bus_space_read_1(iot, ioh, SHPCIC_REG_DATA);
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if (shpcic_ident_ok(val))
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found++;
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bus_space_write_1(iot, ioh, SHPCIC_REG_INDEX, C1SB + SHPCIC_IDENT);
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val = bus_space_read_1(iot, ioh, SHPCIC_REG_DATA);
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if (shpcic_ident_ok(val))
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found++;
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bus_space_unmap(iot, ioh, SHPCIC_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 = SHPCIC_IOSIZE;
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#endif
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return (1);
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}
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void
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pcic_shb_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 shpcic_softc *sc = (void *) self;
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struct shb_attach_args *ia = aux;
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#if 0
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isa_chipset_tag_t ic = ia->ia_ic;
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#endif
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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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/* 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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printf(": can't map i/o space\n");
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return;
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}
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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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printf(": can't map mem space\n");
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return;
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}
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sc->membase = ia->ia_maddr;
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#if 1 /* 1999.05.17 T.Horiuchi for R1.4 */
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sc->subregionmask = 1;
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#else
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sc->subregionmask = (1 << (ia->ia_msize / SHPCIC_MEM_PAGESIZE)) - 1;
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#endif
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#if 0
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sc->intr_est = ic;
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#endif
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sc->pct = (pcmcia_chipset_tag_t) & pcic_shb_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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if (sh_intr_alloc(
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SHPCIC_CSC_INTR_IRQ_VALIDMASK & pcic_shb_intr_alloc_mask,
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IST_EDGE, &sc->irq)) {
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printf("\n%s: can't allocate interrupt\n",
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sc->dev.dv_xname);
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return;
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}
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printf(": using irq %d", sc->irq);
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}
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printf("\n");
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shpcic_attach(sc);
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#if 0
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pcic_shb_bus_width_probe (sc, iot, ioh, ia->ia_iobase, ia->ia_iosize);
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#endif
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sc->ih = shb_intr_establish(sc->irq, IST_EDGE, IPL_TTY,
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shpcic_intr, sc);
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if (sc->ih == NULL) {
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printf("%s: can't establish interrupt\n", sc->dev.dv_xname);
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return;
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}
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shpcic_attach_sockets(sc);
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}
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