216 lines
6.2 KiB
C
216 lines
6.2 KiB
C
/* $NetBSD: pckbc_pnpbios.c,v 1.7 2002/10/02 05:47:17 thorpej Exp $ */
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/*-
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* Copyright (c) 2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe.
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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 the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* PNPBIOS attachment for the PC Keyboard Controller driver.
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*
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* This is a little wonky. The keyboard controller actually
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* has 2 PNPBIOS nodes: one for the controller and the keyboard
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* interrupt, and one for the aux port (mouse) interrupt.
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*
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* For this reason, we actually attach *two* instances of this
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* driver. After both of them have been found, then we attach
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* sub-devices.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: pckbc_pnpbios.c,v 1.7 2002/10/02 05:47:17 thorpej 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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#include <i386/pnpbios/pnpbiosvar.h>
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int pckbc_pnpbios_match(struct device *, struct cfdata *, void *);
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void pckbc_pnpbios_attach(struct device *, struct device *, void *);
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struct pckbc_pnpbios_softc {
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struct pckbc_softc sc_pckbc;
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int sc_irq;
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int sc_ist;
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pckbc_slot_t sc_slot;
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};
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/* Save first port: */
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static struct pckbc_pnpbios_softc *first;
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extern struct cfdriver pckbc_cd;
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CFATTACH_DECL(pckbc_pnpbios, sizeof(struct pckbc_pnpbios_softc),
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pckbc_pnpbios_match, pckbc_pnpbios_attach, NULL, NULL);
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void pckbc_pnpbios_intr_establish(struct pckbc_softc *, pckbc_slot_t);
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int
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pckbc_pnpbios_match(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 pnpbiosdev_attach_args *aa = aux;
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if (strcmp(aa->idstr, "PNP0303") == 0 ||
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strcmp(aa->idstr, "PNP0320") == 0) /* Japanese 106 */
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return (1); /* plus more? */
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if (strcmp(aa->idstr, "PNP0F13") == 0)
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return (1);
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return (0);
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}
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void
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pckbc_pnpbios_attach(struct device *parent,
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struct device *self,
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void *aux)
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{
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struct pckbc_pnpbios_softc *psc = (void *) self;
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struct pckbc_softc *sc = &psc->sc_pckbc;
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struct pckbc_internal *t;
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struct pnpbiosdev_attach_args *aa = aux;
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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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pckbc_slot_t peer;
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int iobase;
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if (strncmp(aa->idstr, "PNP03", 5) == 0) {
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psc->sc_slot = PCKBC_KBD_SLOT;
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peer = PCKBC_AUX_SLOT;
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} else if (strcmp(aa->idstr, "PNP0F13") == 0) {
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psc->sc_slot = PCKBC_AUX_SLOT;
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peer = PCKBC_KBD_SLOT;
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} else {
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printf(": unknown port!\n");
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panic("pckbc_pnpbios_attach: impossible");
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}
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printf(": %s port\n", pckbc_slot_names[psc->sc_slot]);
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if (pnpbios_getirqnum(aa->pbt, aa->resc, 0, &psc->sc_irq,
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&psc->sc_ist) != 0) {
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printf("%s: unable to get IRQ number or type\n",
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sc->sc_dv.dv_xname);
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return;
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}
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if (!first)
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first = psc;
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if (!first->sc_pckbc.id) {
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if (pnpbios_getiobase(aa->pbt, aa->resc, 0, &iot, &iobase))
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return;
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if (pckbc_is_console(iot, iobase)) {
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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 (pnpbios_io_map(aa->pbt, aa->resc, 0,
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&iot, &ioh_d) ||
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pnpbios_io_map(aa->pbt, aa->resc, 1,
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&iot, &ioh_c))
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panic("pckbc_pnpbios_attach: couldn't map");
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t = malloc(sizeof(struct pckbc_internal),
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M_DEVBUF, M_WAITOK);
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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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t->t_addr = iobase;
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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 = &first->sc_pckbc;
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first->sc_pckbc.id = t;
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first->sc_pckbc.intr_establish = pckbc_pnpbios_intr_establish;
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config_defer(&first->sc_pckbc.sc_dv,
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(void(*)(struct device *))pckbc_attach);
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}
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}
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void
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pckbc_pnpbios_intr_establish(struct pckbc_softc *sc,
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pckbc_slot_t slot)
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{
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struct pckbc_pnpbios_softc *psc;
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void *rv = NULL;
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int irq, ist;
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int i;
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/*
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* Note we're always called with sc == first.
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*/
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for (i = 0; i < pckbc_cd.cd_ndevs; i++) {
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psc = pckbc_cd.cd_devs[i];
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if (psc && psc->sc_slot == slot) {
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irq = psc->sc_irq;
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ist = psc->sc_ist;
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break;
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}
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}
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if (i < pckbc_cd.cd_ndevs)
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rv = isa_intr_establish(0/*XXX*/, irq, ist, 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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irq, pckbc_slot_names[slot]);
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}
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}
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