279 lines
8.1 KiB
C
279 lines
8.1 KiB
C
/* $NetBSD: ipaq_pcic.c,v 1.17 2007/10/17 19:54:28 garbled Exp $ */
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/*-
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* Copyright (c) 2001 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 Ichiro FUKUHARA (ichiro@ichiro.org).
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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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: ipaq_pcic.c,v 1.17 2007/10/17 19:54:28 garbled Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/types.h>
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#include <sys/conf.h>
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#include <sys/file.h>
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#include <sys/device.h>
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#include <sys/kernel.h>
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#include <sys/kthread.h>
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#include <sys/malloc.h>
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#include <machine/bus.h>
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#include <dev/pcmcia/pcmciachip.h>
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#include <dev/pcmcia/pcmciavar.h>
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#include <hpcarm/dev/ipaq_saipvar.h>
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#include <hpcarm/dev/ipaq_pcicreg.h>
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#include <hpcarm/dev/ipaq_gpioreg.h>
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#include <arm/sa11x0/sa11x0_gpioreg.h>
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#include <arm/sa11x0/sa11x0_var.h>
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#include <arm/sa11x0/sa11xx_pcicvar.h>
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#include "ipaqpcic.h"
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static int ipaqpcic_match(struct device *, struct cfdata *, void *);
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static void ipaqpcic_attach(struct device *, struct device *, void *);
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static int ipaqpcic_print(void *, const char *);
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static int ipaqpcic_read(struct sapcic_socket *, int);
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static void ipaqpcic_write(struct sapcic_socket *, int, int);
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static void ipaqpcic_set_power(struct sapcic_socket *, int);
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static void ipaqpcic_clear_intr(int);
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static void *ipaqpcic_intr_establish(struct sapcic_socket *, int,
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int (*)(void *), void *);
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static void ipaqpcic_intr_disestablish(struct sapcic_socket *, void *);
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struct ipaqpcic_softc {
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struct sapcic_softc sc_pc;
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bus_space_handle_t sc_ioh;
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struct ipaq_softc *sc_parent;
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struct sapcic_socket sc_socket[2];
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};
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static void ipaqpcic_init(struct ipaqpcic_softc *);
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static struct sapcic_tag ipaqpcic_functions = {
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ipaqpcic_read,
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ipaqpcic_write,
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ipaqpcic_set_power,
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ipaqpcic_clear_intr,
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ipaqpcic_intr_establish,
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ipaqpcic_intr_disestablish
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};
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CFATTACH_DECL(ipaqpcic, sizeof(struct ipaqpcic_softc),
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ipaqpcic_match, ipaqpcic_attach, NULL, NULL);
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static int
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ipaqpcic_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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return (1);
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}
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static void
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ipaqpcic_attach(struct device *parent, struct device *self, void *aux)
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{
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int i;
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struct pcmciabus_attach_args paa;
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struct ipaqpcic_softc *sc = (struct ipaqpcic_softc *)self;
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struct ipaq_softc *psc = (struct ipaq_softc *)parent;
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printf("\n");
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sc->sc_pc.sc_iot = psc->sc_iot;
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sc->sc_ioh = psc->sc_ioh;
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sc->sc_parent = (struct ipaq_softc *)parent;
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ipaqpcic_init(sc);
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for(i = 0; i < 2; i++) {
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sc->sc_socket[i].sc = (struct sapcic_softc *)sc;
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sc->sc_socket[i].socket = i;
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sc->sc_socket[i].pcictag_cookie = psc;
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sc->sc_socket[i].pcictag = &ipaqpcic_functions;
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sc->sc_socket[i].event_thread = NULL;
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sc->sc_socket[i].event = 0;
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sc->sc_socket[i].laststatus = SAPCIC_CARD_INVALID;
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sc->sc_socket[i].shutdown = 0;
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paa.paa_busname = "pcmcia";
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paa.pct = (pcmcia_chipset_tag_t)&sa11x0_pcmcia_functions;
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paa.pch = (pcmcia_chipset_handle_t)&sc->sc_socket[i];
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paa.iobase = 0;
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paa.iosize = 0x4000000;
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sc->sc_socket[i].pcmcia =
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config_found_ia(&sc->sc_pc.sc_dev, "pcmciabus",
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&paa, ipaqpcic_print);
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sa11x0_intr_establish((sa11x0_chipset_tag_t)psc,
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i ? IRQ_CD1 : IRQ_CD0,
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1, IPL_BIO, sapcic_intr,
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&sc->sc_socket[i]);
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/* schedule kthread creation */
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sapcic_kthread_create(&sc->sc_socket[i]);
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#if 0 /* XXX */
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/* establish_intr should be after creating the kthread */
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config_interrupt(&sc->sc_socket[i], ipaqpcic_config_intr);
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#endif
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}
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}
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static int
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ipaqpcic_print(void *aux, const char *name)
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{
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return (UNCONF);
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}
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static void
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ipaqpcic_init(struct ipaqpcic_softc *sc)
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{
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int cr;
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/* All those are inputs */
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cr = bus_space_read_4(sc->sc_pc.sc_iot, sc->sc_parent->sc_gpioh, SAGPIO_PDR);
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cr &= ~(GPIO_H3600_PCMCIA_CD0 | GPIO_H3600_PCMCIA_CD1 | GPIO_H3600_PCMCIA_IRQ0 |
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GPIO_H3600_PCMCIA_IRQ1);
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bus_space_write_4(sc->sc_pc.sc_iot, sc->sc_parent->sc_gpioh, SAGPIO_PDR, cr);
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sc->sc_parent->ipaq_egpio |=
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EGPIO_H3600_OPT_NVRAM_ON | EGPIO_H3600_OPT_ON ;
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sc->sc_parent->ipaq_egpio &=
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~(EGPIO_H3600_CARD_RESET | EGPIO_H3600_OPT_RESET);
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bus_space_write_2(sc->sc_pc.sc_iot, sc->sc_parent->sc_egpioh,
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0, sc->sc_parent->ipaq_egpio);
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}
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static int
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ipaqpcic_read(struct sapcic_socket *so, int reg)
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{
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int cr, bit;
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struct ipaqpcic_softc *sc = (struct ipaqpcic_softc *)so->sc;
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cr = bus_space_read_4(sc->sc_pc.sc_iot, sc->sc_parent->sc_gpioh, SAGPIO_PLR);
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switch (reg) {
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case SAPCIC_STATUS_CARD:
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bit = (so->socket ? GPIO_H3600_PCMCIA_CD0 :
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GPIO_H3600_PCMCIA_CD1) & cr;
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if (!bit)
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return SAPCIC_CARD_INVALID;
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else
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return SAPCIC_CARD_VALID;
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case SAPCIC_STATUS_VS1:
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case SAPCIC_STATUS_VS2:
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case SAPCIC_STATUS_READY:
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bit = (so->socket ? GPIO_H3600_PCMCIA_IRQ0:
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GPIO_H3600_PCMCIA_IRQ1);
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return (bit & cr);
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default:
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panic("ipaqpcic_read: bogus register");
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}
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}
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static void
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ipaqpcic_write(struct sapcic_socket *so, int reg, int arg)
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{
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int s;
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struct ipaqpcic_softc *sc = (struct ipaqpcic_softc *)so->sc;
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s = splhigh();
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switch (reg) {
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case SAPCIC_CONTROL_RESET:
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sc->sc_parent->ipaq_egpio |= EGPIO_H3600_CARD_RESET;
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break;
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case SAPCIC_CONTROL_LINEENABLE:
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case SAPCIC_CONTROL_WAITENABLE:
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case SAPCIC_CONTROL_POWERSELECT:
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break;
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default:
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splx(s);
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panic("ipaqpcic_write: bogus register");
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}
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bus_space_write_2(sc->sc_pc.sc_iot, sc->sc_parent->sc_egpioh, 0,
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sc->sc_parent->ipaq_egpio);
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splx(s);
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}
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static void
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ipaqpcic_set_power(struct sapcic_socket *so, int arg)
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{
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int s;
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struct ipaqpcic_softc *sc = (struct ipaqpcic_softc *)so->sc;
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s = splbio();
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switch (arg) {
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case SAPCIC_POWER_OFF:
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sc->sc_parent->ipaq_egpio &=
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~(EGPIO_H3600_OPT_NVRAM_ON | EGPIO_H3600_OPT_ON);
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break;
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case SAPCIC_POWER_3V:
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case SAPCIC_POWER_5V:
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sc->sc_parent->ipaq_egpio |=
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EGPIO_H3600_OPT_NVRAM_ON | EGPIO_H3600_OPT_ON;
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break;
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default:
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panic("ipaqpcic_set_power: bogus arg");
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}
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bus_space_write_2(sc->sc_pc.sc_iot, sc->sc_parent->sc_egpioh,
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0, sc->sc_parent->ipaq_egpio);
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splx(s);
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}
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static void
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ipaqpcic_clear_intr(int arg)
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{
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}
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static void *
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ipaqpcic_intr_establish(struct sapcic_socket *so, int level,
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int (*ih_fun)(void *), void *ih_arg)
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{
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int irq;
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irq = so->socket ? IRQ_IRQ0 : IRQ_IRQ1;
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return (sa11x0_intr_establish((sa11x0_chipset_tag_t)so->pcictag_cookie,
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irq-16, 1, level, ih_fun, ih_arg));
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}
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static void
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ipaqpcic_intr_disestablish(struct sapcic_socket *so, void *ih)
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{
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sa11x0_intr_disestablish((sa11x0_chipset_tag_t)so->pcictag_cookie, ih);
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}
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