473 lines
13 KiB
C
473 lines
13 KiB
C
/* $NetBSD: cardslot.c,v 1.6 2000/01/24 18:34:44 thorpej Exp $ */
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/*
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* Copyright (c) 1999
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* HAYAKAWA Koichi. 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 HAYAKAWA Koichi.
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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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*
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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
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* 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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#include "opt_cardslot.h"
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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/malloc.h>
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#include <sys/kernel.h>
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#include <sys/syslog.h>
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#include <sys/kthread.h>
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#include <machine/bus.h>
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#include <dev/cardbus/cardslotvar.h>
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#include <dev/cardbus/cardbusvar.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/i82365var.h>
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#if defined CARDSLOT_DEBUG
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#define STATIC
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#define DPRINTF(a) printf a
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#define DDELAY(x) delay((x)*1000*1000)
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#else
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#define STATIC static
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#define DPRINTF(a)
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#endif
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STATIC void cardslotattach __P((struct device *, struct device *, void *));
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#if !defined __BROKEN_INDIRECT_CONFIG
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STATIC int cardslotmatch __P((struct device *, struct cfdata *, void *));
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#else
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STATIC int cardslotmatch __P((struct device *, void *, void *));
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#endif
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static void create_slot_manager __P((void *));
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static void cardslot_event_thread __P((void *arg));
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STATIC int cardslot_cb_print __P((void *aux, const char *pcic));
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static int cardslot_16_print __P((void *, const char *));
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static int cardslot_16_submatch __P((struct device *, struct cfdata *,void *));
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struct cfattach cardslot_ca = {
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sizeof(struct cardslot_softc), cardslotmatch, cardslotattach
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};
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#ifndef __NetBSD_Version__
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struct cfdriver cardslot_cd = {
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NULL, "cardslot", DV_DULL
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};
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#endif
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STATIC int
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#if defined __BROKEN_INDIRECT_CONFIG
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cardslotmatch(parent, match, aux)
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struct device *parent;
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void *match;
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void *aux;
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#else
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cardslotmatch(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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#endif
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{
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#if defined __BROKEN_INDIRECT_CONFIG
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struct cfdata *cf = match;
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#endif
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struct cardslot_attach_args *caa = aux;
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if (caa->caa_cb_attach == NULL && caa->caa_16_attach == NULL) {
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/* Neither CardBus nor 16-bit PCMCIA are defined. */
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return 0;
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}
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return 1;
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}
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STATIC void
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cardslotattach(parent, self, aux)
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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 cardslot_softc *sc = (struct cardslot_softc *)self;
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struct cardslot_attach_args *caa = aux;
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struct cbslot_attach_args *cba = caa->caa_cb_attach;
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struct pcmciabus_attach_args *pa = caa->caa_16_attach;
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struct cardbus_softc *csc;
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struct pcmcia_softc *psc;
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int card_attach_now;
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sc->sc_slot = sc->sc_dev.dv_unit;
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sc->sc_cb_softc = NULL;
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sc->sc_16_softc = NULL;
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SIMPLEQ_INIT(&sc->sc_events);
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sc->sc_th_enable = 0;
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printf(" slot %d flags %x\n", sc->sc_slot, sc->sc_dev.dv_cfdata->cf_flags);
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DPRINTF(("%s attaching CardBus bus...\n", sc->sc_dev.dv_xname));
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if (cba != NULL) {
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if (NULL != (csc = (void *)config_found(self, cba, cardslot_cb_print))) {
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/* cardbus found */
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DPRINTF(("cardslotattach: found cardbus on %s\n", sc->sc_dev.dv_xname));
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sc->sc_cb_softc = csc;
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}
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}
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if (pa != NULL) {
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if (NULL != (psc = (void *)config_found_sm(self, pa, cardslot_16_print,
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cardslot_16_submatch))) {
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/* pcmcia 16-bit bus found */
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DPRINTF(("cardslotattach: found 16-bit pcmcia bus\n"));
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sc->sc_16_softc = psc;
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/* XXX: dirty. This code should be removed to achieve MI */
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caa->caa_ph->pcmcia = (struct device *)psc;
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}
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}
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if (csc != NULL || psc != NULL) {
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#if __NetBSD_Version__ > 104060000
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config_pending_incr();
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kthread_create(create_slot_manager, (void *)sc);
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#else
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kthread_create_deferred(create_slot_manager, (void *)sc);
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#endif
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}
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card_attach_now = sc->sc_dev.dv_cfdata->cf_flags & 0x01;
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if (csc && (csc->sc_cf->cardbus_ctrl)(csc->sc_cc, CARDBUS_CD)) {
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DPRINTF(("cardslotattach: CardBus card found\n"));
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if (card_attach_now) {
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if (cardbus_attach_card(sc->sc_cb_softc) > 0) {
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/* at least one function works */
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CARDSLOT_SET_WORK(sc->sc_status, CARDSLOT_STATUS_WORKING);
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} else {
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/* no functions work or this card is not known */
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CARDSLOT_SET_WORK(sc->sc_status, CARDSLOT_STATUS_NOTWORK);
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}
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CARDSLOT_SET_CARDTYPE(sc->sc_status, CARDSLOT_STATUS_CARD_CB);
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} else {
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/* attach deffered */
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cardslot_event_throw(sc, CARDSLOT_EVENT_INSERTION_CB);
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}
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}
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if (psc && (psc->pct->card_detect)(psc->pch)) {
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DPRINTF(("cardbusattach: 16-bit card found\n"));
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if (card_attach_now) {
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/* attach now */
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pcmcia_card_attach((struct device *)sc->sc_16_softc);
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CARDSLOT_SET_CARDTYPE(sc->sc_status, CARDSLOT_STATUS_CARD_16);
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} else {
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/* attach deffered */
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cardslot_event_throw(sc, CARDSLOT_EVENT_INSERTION_16);
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}
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}
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}
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STATIC int
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cardslot_cb_print(aux, pnp)
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void *aux;
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const char *pnp;
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{
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struct cbslot_attach_args *cba = aux;
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if (pnp) {
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printf("cardbus at %s", pnp);
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printf(" function %d subordinate bus %d", cba->cba_function, cba->cba_bus);
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}
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return UNCONF;
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}
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static int
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cardslot_16_submatch(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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if (cf->cf_loc[PCMCIABUSCF_CONTROLLER] != PCMCIABUSCF_CONTROLLER_DEFAULT
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&& cf->cf_loc[PCMCIABUSCF_CONTROLLER] != 0) {
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return 0;
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}
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if ((cf->cf_loc[PCMCIABUSCF_CONTROLLER] == PCMCIABUSCF_CONTROLLER_DEFAULT)) {
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return ((*cf->cf_attach->ca_match)(parent, cf, aux));
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}
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return 0;
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}
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static int
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cardslot_16_print(arg, pnp)
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void *arg;
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const char *pnp;
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{
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if (pnp) {
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printf("pcmciabus at %s", pnp);
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}
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return UNCONF;
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}
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static void
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create_slot_manager(arg)
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void *arg;
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{
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struct cardslot_softc *sc = (struct cardslot_softc *)arg;
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sc->sc_th_enable = 1;
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#if __NetBSD_Version__ > 104060000
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if (kthread_create1(cardslot_event_thread, sc, &sc->sc_event_thread, "%s",
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sc->sc_dev.dv_xname)) {
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#else
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if (kthread_create(cardslot_event_thread, sc, &sc->sc_event_thread, "%s",
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sc->sc_dev.dv_xname)) {
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#endif
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printf("%s: unable to create event thread for slot %d\n",
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sc->sc_dev.dv_xname, sc->sc_slot);
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panic("create_slot_manager");
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}
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}
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/*
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* void cardslot_event_throw(struct cardslot_softc *sc, int ev)
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*
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* This function throws an event to the event handler. If the state
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* of a slot is changed, it should be noticed using this function.
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*/
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void
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cardslot_event_throw(sc, ev)
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struct cardslot_softc *sc;
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int ev;
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{
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struct cardslot_event *ce;
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DPRINTF(("cardslot_event_throw: an event %s comes\n",
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ev == CARDSLOT_EVENT_INSERTION_CB ? "CardBus Card inserted" :
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ev == CARDSLOT_EVENT_INSERTION_16 ? "16-bit Card inserted" :
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ev == CARDSLOT_EVENT_REMOVAL_CB ? "CardBus Card removed" :
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ev == CARDSLOT_EVENT_REMOVAL_16 ? "16-bit Card removed" : "???"));
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if (NULL == (ce = (struct cardslot_event *)malloc(sizeof (struct cardslot_event), M_TEMP, M_NOWAIT))) {
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panic("cardslot_enevt");
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}
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ce->ce_type = ev;
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{
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int s = spltty();
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SIMPLEQ_INSERT_TAIL(&sc->sc_events, ce, ce_q);
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splx(s);
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}
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wakeup(&sc->sc_events);
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return;
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}
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/*
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* static void cardslot_event_thread(void *arg)
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*
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* This function is the main routine handing cardslot events such as
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* insertions and removals.
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*
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*/
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static void
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cardslot_event_thread(arg)
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void *arg;
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{
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struct cardslot_softc *sc = arg;
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struct cardslot_event *ce;
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int s, first = 1;
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static int antonym_ev[4] = {
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CARDSLOT_EVENT_REMOVAL_16, CARDSLOT_EVENT_INSERTION_16,
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CARDSLOT_EVENT_REMOVAL_CB, CARDSLOT_EVENT_INSERTION_CB
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};
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while (sc->sc_th_enable) {
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s = spltty();
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if ((ce = SIMPLEQ_FIRST(&sc->sc_events)) == NULL) {
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splx(s);
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if (first) {
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first = 0;
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config_pending_decr();
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}
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(void) tsleep(&sc->sc_events, PWAIT, "cardslotev", 0);
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continue;
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}
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SIMPLEQ_REMOVE_HEAD(&sc->sc_events, ce, ce_q);
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splx(s);
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if (IS_CARDSLOT_INSERT_REMOVE_EV(ce->ce_type)) {
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/* Chattering supression */
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s = spltty();
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while (1) {
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struct cardslot_event *ce1, *ce2;
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if ((ce1 = SIMPLEQ_FIRST(&sc->sc_events)) == NULL) {
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break;
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}
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if (ce1->ce_type != antonym_ev[ce->ce_type]) {
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break;
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}
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if ((ce2 = SIMPLEQ_NEXT(ce1, ce_q)) == NULL) {
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break;
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}
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if (ce2->ce_type == ce->ce_type) {
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SIMPLEQ_REMOVE_HEAD(&sc->sc_events, ce1, ce_q);
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free(ce1, M_TEMP);
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SIMPLEQ_REMOVE_HEAD(&sc->sc_events, ce2, ce_q);
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free(ce2, M_TEMP);
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}
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}
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splx(s);
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}
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switch (ce->ce_type) {
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case CARDSLOT_EVENT_INSERTION_CB:
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if ((CARDSLOT_CARDTYPE(sc->sc_status) == CARDSLOT_STATUS_CARD_CB)
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|| (CARDSLOT_CARDTYPE(sc->sc_status) == CARDSLOT_STATUS_CARD_16)) {
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if (CARDSLOT_WORK(sc->sc_status) == CARDSLOT_STATUS_WORKING) {
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/* A card has already been inserted and work. */
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break;
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}
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}
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if (sc->sc_cb_softc) {
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CARDSLOT_SET_CARDTYPE(sc->sc_status, CARDSLOT_STATUS_CARD_CB);
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if (cardbus_attach_card(sc->sc_cb_softc) > 0) {
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/* at least one function works */
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CARDSLOT_SET_WORK(sc->sc_status, CARDSLOT_STATUS_WORKING);
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} else {
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/* no functions work or this card is not known */
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CARDSLOT_SET_WORK(sc->sc_status, CARDSLOT_STATUS_NOTWORK);
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}
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} else {
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panic("no cardbus on %s", sc->sc_dev.dv_xname);
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}
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break;
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case CARDSLOT_EVENT_INSERTION_16:
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if ((CARDSLOT_CARDTYPE(sc->sc_status) == CARDSLOT_STATUS_CARD_CB)
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|| (CARDSLOT_CARDTYPE(sc->sc_status) == CARDSLOT_STATUS_CARD_16)) {
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if (CARDSLOT_WORK(sc->sc_status) == CARDSLOT_STATUS_WORKING) {
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/* A card has already been inserted and work. */
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break;
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}
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}
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if (sc->sc_16_softc) {
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CARDSLOT_SET_CARDTYPE(sc->sc_status, CARDSLOT_STATUS_CARD_16);
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if (pcmcia_card_attach((struct device *)sc->sc_16_softc)) {
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/* Do not attach */
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CARDSLOT_SET_WORK(sc->sc_status, CARDSLOT_STATUS_NOTWORK);
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} else {
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/* working */
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CARDSLOT_SET_WORK(sc->sc_status, CARDSLOT_STATUS_WORKING);
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}
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} else {
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panic("no 16-bit pcmcia on %s", sc->sc_dev.dv_xname);
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}
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break;
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case CARDSLOT_EVENT_REMOVAL_CB:
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if (CARDSLOT_CARDTYPE(sc->sc_status) == CARDSLOT_STATUS_CARD_CB) {
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/* CardBus card has not been inserted. */
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#if notyet
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if (CARDSLOT_WORK(sc->sc_status) == CARDSLOT_STATUS_WORKING) {
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cardbus_detach_card(sc->sc_cb_softc);
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}
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#endif
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CARDSLOT_SET_CARDTYPE(sc->sc_status, CARDSLOT_STATUS_CARD_NONE);
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} else if (CARDSLOT_CARDTYPE(sc->sc_status) != CARDSLOT_STATUS_CARD_16) {
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/* Unknown card... */
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CARDSLOT_SET_CARDTYPE(sc->sc_status, CARDSLOT_STATUS_CARD_NONE);
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}
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CARDSLOT_SET_WORK(sc->sc_status, CARDSLOT_STATUS_NOTWORK);
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break;
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case CARDSLOT_EVENT_REMOVAL_16:
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DPRINTF(("%s: removal event\n", sc->sc_dev.dv_xname));
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if (CARDSLOT_CARDTYPE(sc->sc_status) != CARDSLOT_STATUS_CARD_16) {
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/* 16-bit card has not been inserted. */
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break;
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}
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if ((sc->sc_16_softc != NULL)
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&& (CARDSLOT_WORK(sc->sc_status) == CARDSLOT_STATUS_WORKING)) {
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struct pcmcia_softc *psc = sc->sc_16_softc;
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pcmcia_card_deactivate((struct device *)psc);
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pcmcia_chip_socket_disable(psc->pct, psc->pch);
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pcmcia_card_detach((struct device *)psc, DETACH_FORCE);
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}
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CARDSLOT_SET_CARDTYPE(sc->sc_status, CARDSLOT_STATUS_CARD_NONE);
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CARDSLOT_SET_WORK(sc->sc_status, CARDSLOT_STATUS_NOTWORK);
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break;
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default:
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panic("cardslot_event_thread: unknown event %d", ce->ce_type);
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}
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free(ce, M_TEMP);
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}
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sc->sc_event_thread = NULL;
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/* In case parent is waiting for us to exit. */
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wakeup(sc);
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kthread_exit(0);
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}
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