Common driver code for SA11x0 PCMCIA function.
This commit is contained in:
toshii
parent
57abc92eeb
commit
79d31f6571
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/* $NetBSD: sa11xx_pcic.c,v 1.1 2001/03/10 19:00:39 toshii Exp $ */
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/*
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* Copyright (c) 2001 IWAMOTO Toshihiro. All rights reserved.
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* Copyright (c) 1997 Marc Horowitz. 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 Marc Horowitz.
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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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/*
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* Common code for SA11x0 based PCMCIA modules
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*/
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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/callout.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 <uvm/uvm.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/pcmcia/pcmciareg.h>
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#include <dev/pcmcia/pcmciavar.h>
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#include <dev/pcmcia/pcmciachip.h>
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#include <hpcarm/sa11x0/sa11x0_reg.h>
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#include <hpcarm/sa11x0/sa11x0_var.h>
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#include <hpcarm/sa11x0/sa11xx_pcicreg.h>
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#include <hpcarm/sa11x0/sa11xx_pcicvar.h>
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static void sapcic_event_thread(void *);
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static int sapcic_mem_alloc(pcmcia_chipset_handle_t, bus_size_t,
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struct pcmcia_mem_handle *);
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static void sapcic_mem_free(pcmcia_chipset_handle_t,
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struct pcmcia_mem_handle *);
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static int sapcic_mem_map(pcmcia_chipset_handle_t, int, bus_addr_t,
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bus_size_t, struct pcmcia_mem_handle *,
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bus_addr_t *, int *);
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static void sapcic_mem_unmap(pcmcia_chipset_handle_t, int);
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static int sapcic_io_alloc(pcmcia_chipset_handle_t, bus_addr_t,
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bus_size_t, bus_size_t,
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struct pcmcia_io_handle *);
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static void sapcic_io_free(pcmcia_chipset_handle_t,
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struct pcmcia_io_handle *);
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static int sapcic_io_map(pcmcia_chipset_handle_t, int,
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bus_addr_t, bus_size_t,
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struct pcmcia_io_handle *, int *);
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static void sapcic_io_unmap(pcmcia_chipset_handle_t, int);
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static void *sapcic_intr_establish(pcmcia_chipset_handle_t,
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struct pcmcia_function *, int,
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int (*)(void *), void *);
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static void sapcic_intr_disestablish(pcmcia_chipset_handle_t,
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void *);
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static void sapcic_socket_enable(pcmcia_chipset_handle_t);
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static void sapcic_socket_disable(pcmcia_chipset_handle_t);
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#ifdef DEBUG
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#define DPRINTF(arg) printf arg
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#else
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#define DPRINTF(arg)
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#endif
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struct pcmcia_chip_functions sa11x0_pcmcia_functions = {
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sapcic_mem_alloc,
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sapcic_mem_free,
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sapcic_mem_map,
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sapcic_mem_unmap,
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sapcic_io_alloc,
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sapcic_io_free,
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sapcic_io_map,
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sapcic_io_unmap,
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sapcic_intr_establish,
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sapcic_intr_disestablish,
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sapcic_socket_enable,
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sapcic_socket_disable,
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};
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void
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sapcic_kthread_create(arg)
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void *arg;
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{
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struct sapcic_socket *so = arg;
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/* XXX attach card if already present */
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so->laststatus =(so->pcictag->read)(so, SAPCIC_STATUS_CARD);
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if (so->laststatus == SAPCIC_CARD_VALID) {
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printf("%s: card present\n",
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so->sc->sc_dev.dv_xname);
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pcmcia_card_attach(so->pcmcia);
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}
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if (kthread_create1(sapcic_event_thread, so, &so->event_thread,
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"%s,%d", so->sc->sc_dev.dv_xname, so->socket)) {
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printf("%s: unable to create event thread for socket %d\n",
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so->sc->sc_dev.dv_xname, so->socket);
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panic("sapcic_kthread_create");
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}
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}
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static void
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sapcic_event_thread(arg)
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void *arg;
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{
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struct sapcic_socket *so = arg;
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int newstatus, s;
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while (so->shutdown == 0) {
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/*
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* Serialize event processing on the PCIC. We may
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* sleep while we hold this lock.
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*/
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(void) lockmgr(&so->sc->sc_lock, LK_EXCLUSIVE, NULL);
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/* sleep .25s to be enqueued chatterling interrupts */
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(void) tsleep((caddr_t)sapcic_event_thread, PWAIT,
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"pcicss", hz/4);
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s = splhigh();
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so->event = 0;
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/* we don't rely on interrupt type */
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newstatus = (so->pcictag->read)(so, SAPCIC_STATUS_CARD);
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splx(s);
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if (so->laststatus == newstatus) {
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/*
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* No events to process; release the PCIC lock.
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*/
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(void) lockmgr(&so->sc->sc_lock, LK_RELEASE, NULL);
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(void) tsleep(&so->event, PWAIT, "pcicev", 0);
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continue;
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}
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so->laststatus = newstatus;
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switch (newstatus) {
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case SAPCIC_CARD_VALID:
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printf("%s: insertion event\n",
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so->sc->sc_dev.dv_xname);
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pcmcia_card_attach(so->pcmcia);
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break;
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case SAPCIC_CARD_INVALID:
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printf("%s: removal event\n",
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so->sc->sc_dev.dv_xname);
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pcmcia_card_detach(so->pcmcia, DETACH_FORCE);
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break;
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default:
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panic("sapcic_event_thread: unknown status %d",
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newstatus);
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}
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(void) lockmgr(&so->sc->sc_lock, LK_RELEASE, NULL);
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}
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so->event_thread = NULL;
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/* In case parent is waiting for us to exit. */
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wakeup(so->sc);
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kthread_exit(0);
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}
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int
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sapcic_intr(arg)
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void *arg;
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{
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struct sapcic_socket *so = arg;
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so->event++;
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(so->pcictag->clear_intr)(so->socket);
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return 1;
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}
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static int
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sapcic_mem_alloc(pch, size, pmh)
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pcmcia_chipset_handle_t pch;
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bus_size_t size;
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struct pcmcia_mem_handle *pmh;
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{
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struct sapcic_socket *so = pch;
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/* All we need is bus space tag */
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memset(pmh, 0, sizeof(*pmh));
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pmh->memt = so->sc->sc_iot;
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return (0);
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}
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static void
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sapcic_mem_free(pch, pmh)
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pcmcia_chipset_handle_t pch;
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struct pcmcia_mem_handle *pmh;
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{
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}
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static int
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sapcic_mem_map(pch, kind, card_addr, size, pmh, offsetp, windowp)
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pcmcia_chipset_handle_t pch;
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int kind;
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bus_addr_t card_addr;
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bus_size_t size;
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struct pcmcia_mem_handle *pmh;
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bus_addr_t *offsetp;
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int *windowp;
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{
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struct sapcic_socket *so = pch;
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int error;
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bus_addr_t pa;
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pa = trunc_page(card_addr);
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*offsetp = card_addr - pa;
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size = round_page(card_addr + size) - pa;
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pa += SAPCIC_BASE_OFFSET;
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pa += SAPCIC_SOCKET_OFFSET * so->socket;
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switch (kind & ~PCMCIA_WIDTH_MEM_MASK) {
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case PCMCIA_MEM_ATTR:
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pa += SAPCIC_ATTR_OFFSET;
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break;
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case PCMCIA_MEM_COMMON:
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pa += SAPCIC_COMMON_OFFSET;
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break;
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default:
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panic("sapcic_mem_map: bogus kind\n");
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}
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error = bus_space_map(so->sc->sc_iot, pa, size, 0, &pmh->memh);
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if (! error)
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*windowp = (int)pmh->memh;
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return (error);
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}
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static void
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sapcic_mem_unmap(pch, window)
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pcmcia_chipset_handle_t pch;
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int window;
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{
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struct sapcic_socket *so = pch;
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bus_space_unmap(so->sc->sc_iot, (bus_addr_t)window, 4096); /* XXX */
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}
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static int
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sapcic_io_alloc(pch, start, size, align, pih)
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pcmcia_chipset_handle_t pch;
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bus_addr_t start;
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bus_size_t size;
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bus_size_t align;
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struct pcmcia_io_handle *pih;
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{
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struct sapcic_socket *so = pch;
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memset(pih, 0, sizeof(*pih));
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pih->iot = so->sc->sc_iot;
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pih->addr = start;
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pih->size = size;
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/* XXX Are we ignoring alignment constraints? */
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return (0);
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}
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static void
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sapcic_io_free(pch, pih)
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pcmcia_chipset_handle_t pch;
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struct pcmcia_io_handle *pih;
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{
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}
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static int
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sapcic_io_map(pch, width, offset, size, pih, windowp)
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pcmcia_chipset_handle_t pch;
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int width;
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bus_addr_t offset;
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bus_size_t size;
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struct pcmcia_io_handle *pih;
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int *windowp;
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{
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struct sapcic_socket *so = pch;
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bus_addr_t pa;
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int error;
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pa = pih->addr + offset;
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pa += SAPCIC_BASE_OFFSET;
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pa += SAPCIC_SOCKET_OFFSET * so->socket;
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DPRINTF(("sapcic_io_map: %x %x\n", (unsigned int)pa, (unsigned int)size));
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error = bus_space_map(so->sc->sc_iot, pa, size, 0, &pih->ioh);
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if (! error)
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*windowp = (int)pih->ioh;
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return (error);
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}
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static void sapcic_io_unmap(pch, window)
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pcmcia_chipset_handle_t pch;
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int window;
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{
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struct sapcic_socket *so = pch;
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bus_space_unmap(so->sc->sc_iot, (bus_addr_t)window, 4096); /* XXX */
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}
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static void *
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sapcic_intr_establish(pch, pf, ipl, fct, arg)
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pcmcia_chipset_handle_t pch;
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struct pcmcia_function *pf;
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int ipl;
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int (*fct)(void *);
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void *arg;
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{
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struct sapcic_socket *so = pch;
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/* XXX need to check if something should be done here */
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return ((so->pcictag->intr_establish)(so, ipl, fct, arg));
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}
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static void
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sapcic_intr_disestablish(pch, ih)
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pcmcia_chipset_handle_t pch;
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void *ih;
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{
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struct sapcic_socket *so = pch;
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((so->pcictag->intr_disestablish)(so, ih));
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}
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static void
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sapcic_socket_enable(pch)
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pcmcia_chipset_handle_t pch;
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{
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/* XXX usage of delay() should be decreased */
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struct sapcic_socket *so = pch;
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#if defined(DIAGNOSTIC) && defined(notyet)
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if (so->flags & PCIC_FLAG_ENABLED)
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printf("sapcic_socket_enable: enabling twice\n");
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#endif
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/* disable interrupts */
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/* power down the socket to reset it, clear the card reset pin */
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(so->pcictag->set_power)(so, SAPCIC_POWER_OFF);
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/*
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* wait 300ms until power fails (Tpf). Then, wait 100ms since
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* we are changing Vcc (Toff).
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*/
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delay((300 + 100) * 1000);
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/* power up the socket */
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(so->pcictag->set_power)(so, so->socket ? SAPCIC_POWER_3V : SAPCIC_POWER_5V); /* XXX */
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(so->pcictag->write)(so, SAPCIC_CONTROL_POWERSELECT,
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so->socket ? SAPCIC_POWER_3V : SAPCIC_POWER_5V); /* XXX */
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/* enable PCMCIA control lines */
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(so->pcictag->write)(so, SAPCIC_CONTROL_LINEENABLE, 1);
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/*
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* wait 100ms until power raise (Tpr) and 20ms to become
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* stable (Tsu(Vcc)).
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*
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* some machines require some more time to be settled
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* (300ms is added here).
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*/
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delay((100 + 20 + 300) * 1000);
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/* honor nWAIT signal */
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(so->pcictag->write)(so, SAPCIC_CONTROL_WAITENABLE, 1);
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/* now make sure we have reset# active */
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(so->pcictag->write)(so, SAPCIC_CONTROL_RESET, 1);
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/*
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* hold RESET at least 10us, this is a min allow for slop in
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* delay routine.
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*/
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delay(20);
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/* clear the reset flag */
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(so->pcictag->write)(so, SAPCIC_CONTROL_RESET, 0);
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/* wait 20ms as per pc card standard (r2.01) section 4.3.6 */
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delay(20 * 1000);
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/* wait for the chip to finish initializing */
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/* pcic_wait_ready(h);*/
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delay(500 * 1000); /* XXX wait long enough */
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/* finally enable the interrupt */
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}
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static void
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sapcic_socket_disable(pch)
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pcmcia_chipset_handle_t pch;
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{
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}
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@ -0,0 +1,44 @@
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/* $NetBSD: sa11xx_pcicreg.h,v 1.1 2001/03/10 19:00:39 toshii 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
|
||||
* modification, are permitted provided that the following conditions
|
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* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#define SAPCIC_BASE_OFFSET 0x20000000
|
||||
#define SAPCIC_SOCKET_OFFSET 0x10000000
|
||||
|
||||
#define SAPCIC_IO_OFFSET 0x00000000
|
||||
#define SAPCIC_ATTR_OFFSET 0x08000000 /* attribute memory */
|
||||
#define SAPCIC_COMMON_OFFSET 0x0C000000 /* common memory */
|
||||
|
|
@ -0,0 +1,95 @@
|
|||
/* $NetBSD: sa11xx_pcicvar.h,v 1.1 2001/03/10 19:00:39 toshii Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 2001 The NetBSD Foundation, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to The NetBSD Foundation
|
||||
* by IWAMOTO Toshihiro.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the NetBSD
|
||||
* Foundation, Inc. and its contributors.
|
||||
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
||||
* contributors may be used to endorse or promote products derived
|
||||
* from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
struct sapcic_socket {
|
||||
struct sapcic_softc *sc;
|
||||
int socket; /* socket number */
|
||||
struct device *pcmcia;
|
||||
struct sapcic_tag *pcictag;
|
||||
|
||||
struct proc *event_thread;
|
||||
int event;
|
||||
int laststatus;
|
||||
int shutdown;
|
||||
|
||||
/* private data for pcictag functions */
|
||||
struct saip_softc *saip_sc;
|
||||
struct sacc_softc *sacc_sc;
|
||||
void *pddata;
|
||||
};
|
||||
|
||||
struct sapcic_tag {
|
||||
int (*read)(struct sapcic_socket *, int);
|
||||
void (*write)(struct sapcic_socket *, int, int);
|
||||
void (*set_power)(struct sapcic_socket *, int);
|
||||
void (*clear_intr)(int);
|
||||
void *(*intr_establish)(struct sapcic_socket *, int,
|
||||
int (*)(void *), void *);
|
||||
void (*intr_disestablish)(struct sapcic_socket *, void *);
|
||||
};
|
||||
|
||||
/* registers and their values */
|
||||
#define SAPCIC_STATUS_CARD 0
|
||||
#define SAPCIC_CARD_VALID 1
|
||||
#define SAPCIC_CARD_INVALID 0
|
||||
#define SAPCIC_STATUS_VOLTAGESENSE 1
|
||||
#define SAPCIC_VS_3V 1
|
||||
#define SAPCIC_VS_5V 2
|
||||
|
||||
#define SAPCIC_CONTROL_RESET 8 /* assert RESET */
|
||||
#define SAPCIC_CONTROL_LINEENABLE 9 /* enable control lines */
|
||||
#define SAPCIC_CONTROL_WAITENABLE 10 /* enable nWAIT signal */
|
||||
#define SAPCIC_CONTROL_POWERSELECT 11 /* select card voltage */
|
||||
|
||||
/* Voltage selection */
|
||||
#define SAPCIC_POWER_OFF 0
|
||||
#define SAPCIC_POWER_3V 1
|
||||
#define SAPCIC_POWER_5V 2
|
||||
|
||||
/* common part for sacpcic_softc and sagpcic_softc */
|
||||
struct sapcic_softc {
|
||||
struct device sc_dev;
|
||||
bus_space_tag_t sc_iot;
|
||||
|
||||
struct lock sc_lock;
|
||||
};
|
||||
|
||||
int sapcic_intr(void *);
|
||||
void sapcic_kthread_create(void *);
|
||||
|
||||
extern struct pcmcia_chip_functions sa11x0_pcmcia_functions;
|
||||
Loading…
Reference in New Issue