230 lines
6.0 KiB
C
230 lines
6.0 KiB
C
/* $NetBSD: sa11x1_pcic.c,v 1.18 2008/04/28 20:23:14 martin 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 IWAMOTO Toshihiro.
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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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*
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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: sa11x1_pcic.c,v 1.18 2008/04/28 20:23:14 martin 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 <arm/sa11x0/sa11x0_reg.h>
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#include <arm/sa11x0/sa11x0_var.h>
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#include <arm/sa11x0/sa1111_reg.h>
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#include <arm/sa11x0/sa1111_var.h>
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#include <arm/sa11x0/sa11x1_pcicreg.h>
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#include <arm/sa11x0/sa11xx_pcicvar.h>
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#include <arm/sa11x0/sa11x1_pcicvar.h>
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#include "sacpcic.h"
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static int sacpcic_print(void *, const char *);
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static void
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sacpcic_config_deferred(struct device *dev)
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{
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struct sacpcic_softc *sc = (struct sacpcic_softc *)dev;
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struct sapcic_socket *so;
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int i;
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for (i = 0; i < 2; i++) {
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so = &sc->sc_socket[i];
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sapcic_kthread_create(so);
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sacc_intr_establish((sacc_chipset_tag_t)so->pcictag_cookie,
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i ? IRQ_S1_CDVALID : IRQ_S0_CDVALID,
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IST_EDGE_RAISE, IPL_BIO, sapcic_intr, so);
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}
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}
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void
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sacpcic_attach_common(struct sacc_softc *psc, struct sacpcic_softc *sc,
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void *aux, void (* socket_setup_hook)(struct sapcic_socket *))
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{
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int i;
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struct pcmciabus_attach_args paa;
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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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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 = NULL;
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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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socket_setup_hook(&sc->sc_socket[i]);
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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", &paa,
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sacpcic_print);
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}
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config_interrupts(&sc->sc_pc.sc_dev, sacpcic_config_deferred);
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}
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int
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sacpcic_print(void *aux, const char *name)
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{
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return UNCONF;
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}
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int
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sacpcic_read(struct sapcic_socket *so, int reg)
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{
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int cr, bit;
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struct sacpcic_softc *sc = (struct sacpcic_softc *)so->sc;
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cr = bus_space_read_4(sc->sc_pc.sc_iot, sc->sc_ioh, SACPCIC_SR);
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switch (reg) {
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case SAPCIC_STATUS_CARD:
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bit = (so->socket ? SR_S1_CARDDETECT : SR_S0_CARDDETECT) & 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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bit = (so->socket ? SR_S1_VS1 : SR_S0_VS1);
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return (bit & cr);
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case SAPCIC_STATUS_VS2:
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bit = (so->socket ? SR_S1_VS2 : SR_S0_VS2);
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return (bit & cr);
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case SAPCIC_STATUS_READY:
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bit = (so->socket ? SR_S1_READY : SR_S0_READY);
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return (bit & cr);
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default:
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panic("sacpcic_read: bogus register");
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}
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}
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void
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sacpcic_write(struct sapcic_socket *so, int reg, int arg)
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{
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int s, oldvalue, newvalue, mask;
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struct sacpcic_softc *sc = (struct sacpcic_softc *)so->sc;
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s = splhigh();
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oldvalue = bus_space_read_4(sc->sc_pc.sc_iot, sc->sc_ioh, SACPCIC_CR);
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switch (reg) {
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case SAPCIC_CONTROL_RESET:
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mask = so->socket ? CR_S1_RST : CR_S0_RST;
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newvalue = (oldvalue & ~mask) | (arg ? mask : 0);
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break;
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case SAPCIC_CONTROL_LINEENABLE:
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mask = so->socket ? CR_S1_FLT : CR_S0_FLT;
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newvalue = (oldvalue & ~mask) | (arg ? mask : 0);
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break;
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case SAPCIC_CONTROL_WAITENABLE:
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mask = so->socket ? CR_S1_PWAITEN : CR_S0_PWAITEN;
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newvalue = (oldvalue & ~mask) | (arg ? mask : 0);
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break;
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case SAPCIC_CONTROL_POWERSELECT:
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mask = so->socket ? CR_S1_PSE : CR_S0_PSE;
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newvalue = oldvalue & ~mask;
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switch (arg) {
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case SAPCIC_POWER_3V:
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break;
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case SAPCIC_POWER_5V:
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newvalue |= mask;
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break;
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default:
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splx(s);
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panic("sacpcic_write: bogus arg");
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}
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break;
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default:
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splx(s);
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panic("sacpcic_write: bogus register");
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}
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bus_space_write_4(sc->sc_pc.sc_iot, sc->sc_ioh, SACPCIC_CR, newvalue);
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splx(s);
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}
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void
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sacpcic_clear_intr(int arg)
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{
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/* sacc_intr_dispatch takes care of intr status */
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}
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void *
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sacpcic_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_S1_READY : IRQ_S0_READY;
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return sacc_intr_establish((sacc_chipset_tag_t)so->pcictag_cookie, irq,
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IST_EDGE_FALL, level, ih_fun, ih_arg);
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}
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void
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sacpcic_intr_disestablish(struct sapcic_socket *so, void *ih)
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{
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sacc_intr_disestablish((sacc_chipset_tag_t)so->pcictag_cookie, ih);
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}
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