235 lines
6.3 KiB
C
235 lines
6.3 KiB
C
/* $NetBSD: pckbc_isa.c,v 1.11 2002/10/04 03:40:29 soren Exp $ */
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/*
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* Copyright (c) 1998
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* Matthias Drochner. 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 for the NetBSD Project
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* by Matthias Drochner.
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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/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: pckbc_isa.c,v 1.11 2002/10/04 03:40:29 soren Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <sys/errno.h>
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#include <sys/queue.h>
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#include <sys/lock.h>
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#include <machine/bus.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/ic/i8042reg.h>
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#include <dev/ic/pckbcvar.h>
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int pckbc_isa_match __P((struct device *, struct cfdata *, void *));
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void pckbc_isa_attach __P((struct device *, struct device *, void *));
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struct pckbc_isa_softc {
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struct pckbc_softc sc_pckbc;
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isa_chipset_tag_t sc_ic;
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int sc_irq[PCKBC_NSLOTS];
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};
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CFATTACH_DECL(pckbc_isa, sizeof(struct pckbc_isa_softc),
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pckbc_isa_match, pckbc_isa_attach, NULL, NULL);
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void pckbc_isa_intr_establish __P((struct pckbc_softc *, pckbc_slot_t));
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int
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pckbc_isa_match(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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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_d, ioh_c;
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int res, ok = 1;
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if (ISA_DIRECT_CONFIG(ia))
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return (0);
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/* If values are hardwired to something that they can't be, punt. */
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if (ia->ia_nio < 1 ||
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(ia->ia_io[0].ir_addr != ISACF_PORT_DEFAULT &&
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ia->ia_io[0].ir_addr != IO_KBD))
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return (0);
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if (ia->ia_niomem > 0 &&
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(ia->ia_iomem[0].ir_addr != ISACF_IOMEM_DEFAULT))
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return (0);
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if (ia->ia_nirq < 1 ||
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(ia->ia_irq[0].ir_irq != ISACF_IRQ_DEFAULT &&
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ia->ia_irq[0].ir_irq != 1 /*XXX*/))
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return (0);
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if (ia->ia_ndrq > 0 &&
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(ia->ia_drq[0].ir_drq != ISACF_DRQ_DEFAULT))
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return (0);
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if (pckbc_is_console(iot, IO_KBD) == 0) {
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struct pckbc_internal t;
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if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d))
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return (0);
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if (bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c)) {
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bus_space_unmap(iot, ioh_d, 1);
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return (0);
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}
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memset(&t, 0, sizeof(t));
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t.t_iot = iot;
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t.t_ioh_d = ioh_d;
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t.t_ioh_c = ioh_c;
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/* flush KBC */
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(void) pckbc_poll_data1(&t, PCKBC_KBD_SLOT, 0);
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/* KBC selftest */
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if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0) {
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ok = 0;
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goto out;
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}
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res = pckbc_poll_data1(&t, PCKBC_KBD_SLOT, 0);
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if (res != 0x55) {
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#ifdef DEBUG
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printf("kbc selftest: %x\n", res);
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#endif
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ok = 0;
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}
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out:
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bus_space_unmap(iot, ioh_d, 1);
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bus_space_unmap(iot, ioh_c, 1);
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}
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if (ok) {
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ia->ia_io[0].ir_addr = IO_KBD;
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ia->ia_io[0].ir_size = 5;
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ia->ia_nio = 1;
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ia->ia_niomem = 0;
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ia->ia_nirq = 0;
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ia->ia_ndrq = 0;
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}
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return (ok);
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}
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void
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pckbc_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 pckbc_isa_softc *isc = (void *)self;
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struct pckbc_softc *sc = &isc->sc_pckbc;
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struct isa_attach_args *ia = aux;
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struct pckbc_internal *t;
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bus_space_tag_t iot;
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bus_space_handle_t ioh_d, ioh_c;
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isc->sc_ic = ia->ia_ic;
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iot = ia->ia_iot;
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switch (ia->ia_nirq) {
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case 1:
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/* Both channels use the same IRQ. */
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isc->sc_irq[PCKBC_KBD_SLOT] =
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isc->sc_irq[PCKBC_AUX_SLOT] = ia->ia_irq[0].ir_irq;
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break;
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case 2:
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/* First IRQ is kbd, second IRQ is aux port. */
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isc->sc_irq[PCKBC_KBD_SLOT] = ia->ia_irq[0].ir_irq;
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isc->sc_irq[PCKBC_AUX_SLOT] = ia->ia_irq[1].ir_irq;
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break;
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default:
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/* Set up IRQs for "normal" ISA. */
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isc->sc_irq[PCKBC_KBD_SLOT] = 1;
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isc->sc_irq[PCKBC_AUX_SLOT] = 12;
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break;
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}
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sc->intr_establish = pckbc_isa_intr_establish;
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if (pckbc_is_console(iot, IO_KBD)) {
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t = &pckbc_consdata;
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ioh_d = t->t_ioh_d;
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ioh_c = t->t_ioh_c;
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pckbc_console_attached = 1;
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/* t->t_cmdbyte was initialized by cnattach */
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} else {
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if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d) ||
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bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c))
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panic("pckbc_attach: couldn't map");
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t = malloc(sizeof(struct pckbc_internal), M_DEVBUF,
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M_WAITOK|M_ZERO);
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t->t_iot = iot;
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t->t_ioh_d = ioh_d;
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t->t_ioh_c = ioh_c;
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t->t_addr = IO_KBD;
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t->t_cmdbyte = KC8_CPU; /* Enable ports */
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callout_init(&t->t_cleanup);
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}
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t->t_sc = sc;
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sc->id = t;
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printf("\n");
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/* Finish off the attach. */
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pckbc_attach(sc);
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}
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void
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pckbc_isa_intr_establish(sc, slot)
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struct pckbc_softc *sc;
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pckbc_slot_t slot;
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{
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struct pckbc_isa_softc *isc = (void *) sc;
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void *rv;
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rv = isa_intr_establish(isc->sc_ic, isc->sc_irq[slot], IST_EDGE,
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IPL_TTY, pckbcintr, sc);
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if (rv == NULL) {
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printf("%s: unable to establish interrupt for %s slot\n",
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sc->sc_dv.dv_xname, pckbc_slot_names[slot]);
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} else {
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printf("%s: using irq %d for %s slot\n", sc->sc_dv.dv_xname,
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isc->sc_irq[slot], pckbc_slot_names[slot]);
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}
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}
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