731 lines
17 KiB
C
731 lines
17 KiB
C
/*
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* NEC MECIA controller.
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*-------------------------------------------------------------------------
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*
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* Copyright (c) 2001 M. Warner Losh. 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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*
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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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* $FreeBSD$
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*
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* Based heavily on the FreeBSD pcic driver's pcic98 support, derived
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* from PAO3 tree. This copyright notice likely needs modification for
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* such a linage. The only authorship I could find was:
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*
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* PC9801 original PCMCIA controller code for NS/A,Ne,NX/C,NR/L.
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* by Noriyuki Hosobuchi <hoso@ce.mbn.or.jp>
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*/
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <pccard/meciareg.h>
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#include <pccard/cardinfo.h>
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#include <pccard/slot.h>
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#ifndef MECIA_IOBASE
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#define MECIA_IOBASE 0x80d0
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#endif
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/* Get pnp IDs */
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#include <isa/isavar.h>
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#include <dev/pccard/pccardvar.h>
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#include "card_if.h"
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#define MECIA_DEVICE2SOFTC(dev) ((struct mecia_slot *) device_get_softc(dev))
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/*
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* Prototypes for interrupt handler.
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*/
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static driver_intr_t meciaintr;
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static int mecia_ioctl(struct slot *, int, caddr_t);
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static int mecia_power(struct slot *);
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static void mecia_mapirq(struct slot *, int);
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static timeout_t mecia_reset;
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static void mecia_resume(struct slot *);
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static void mecia_disable(struct slot *);
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static timeout_t meciatimeout;
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static struct callout_handle meciatimeout_ch
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= CALLOUT_HANDLE_INITIALIZER(&meciatimeout_ch);
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static int mecia_memory(struct slot *, int);
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static int mecia_io(struct slot *, int);
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/*
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* Per-slot data table.
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*/
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struct mecia_slot {
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int unit; /* Unit number */
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int slotnum; /* My slot number */
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struct slot *slt; /* Back ptr to slot */
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device_t dev; /* My device */
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u_char last_reg1; /* Last value of change reg */
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};
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static struct slot_ctrl mecia_cinfo = {
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mecia_mapirq,
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mecia_memory,
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mecia_io,
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mecia_reset,
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mecia_disable,
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mecia_power,
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mecia_ioctl,
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mecia_resume,
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1,
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#if 0
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1
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#else
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2 /* Fake for UE2212 LAN card */
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#endif
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};
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static int validunits = 0;
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/*
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* Look for an NEC MECIA.
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* For each available slot, allocate a PC-CARD slot.
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*/
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static int
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mecia_probe(device_t dev)
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{
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int validslots = 0;
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/* Check isapnp ids */
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if (isa_get_logicalid(dev)) /* skip PnP probes */
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return (ENXIO);
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if (inb(MECIA_REG0) != 0xff) {
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validslots++;
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/* XXX need to allocated the port resources */
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device_set_desc(dev, "MECIA PC98 Original PCMCIA Controller");
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}
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return (validslots ? 0 : ENXIO);
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}
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static int
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mecia_attach(device_t dev)
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{
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int error;
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int irq;
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void *ih;
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device_t kid;
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struct resource *r;
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int rid;
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struct slot *slt;
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struct mecia_slot *sp;
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sp = MECIA_DEVICE2SOFTC(dev);
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sp->unit = validunits++;
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kid = device_add_child(dev, NULL, -1);
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if (kid == NULL) {
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device_printf(dev, "Can't add pccard bus slot 0\n");
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return (ENXIO);
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}
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device_probe_and_attach(kid);
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slt = pccard_init_slot(kid, &mecia_cinfo);
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if (slt == 0) {
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device_printf(dev, "Can't get pccard info slot 0\n");
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return (ENXIO);
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}
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slt->cdata = sp;
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sp->slt = slt;
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validunits++;
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rid = 0;
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r = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
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if (!r)
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return (ENXIO);
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irq = bus_get_resource_start(dev, SYS_RES_IRQ, 0);
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if (irq == 0) {
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/* See if the user has requested a specific IRQ */
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if (!getenv_int("machdep.pccard.mecia_irq", &irq))
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irq = 0;
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}
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rid = 0;
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r = 0;
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if (irq > 0) {
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r = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, irq,
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irq, 1, RF_ACTIVE);
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}
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if (r && ((1 << (rman_get_start(r))) & MECIA_INT_MASK_ALLOWED) == 0) {
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device_printf(dev,
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"Hardware does not support irq %d, trying polling.\n",
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irq);
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bus_release_resource(dev, SYS_RES_IRQ, rid, r);
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r = 0;
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irq = 0;
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}
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if (r) {
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error = bus_setup_intr(dev, r, INTR_TYPE_MISC,
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meciaintr, (void *) sp, &ih);
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if (error) {
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bus_release_resource(dev, SYS_RES_IRQ, rid, r);
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return (error);
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}
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irq = rman_get_start(r);
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device_printf(dev, "management irq %d\n", irq);
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} else {
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irq = 0;
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}
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if (irq == 0) {
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meciatimeout_ch = timeout(meciatimeout, (void *) sp, hz/2);
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device_printf(dev, "Polling mode\n");
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}
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sp->last_reg1 = inb(MECIA_REG1);
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if (sp->last_reg1 & MECIA_CARDEXIST) {
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/* PCMCIA card exist */
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sp->slt->laststate = sp->slt->state = filled;
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pccard_event(sp->slt, card_inserted);
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} else {
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sp->slt->laststate = sp->slt->state = empty;
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}
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sp->slt->irq = irq;
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return (bus_generic_attach(dev));
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}
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/*
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* ioctl calls - Controller specific ioctls
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*/
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static int
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mecia_ioctl(struct slot *slt, int cmd, caddr_t data)
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{
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return (ENOTTY);
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}
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/*
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* MECIA timer. If the controller doesn't have a free IRQ to use
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* or if interrupt steering doesn't work, poll the controller for
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* insertion/removal events.
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*/
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static void
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meciatimeout(void *chan)
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{
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meciaintr(chan);
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meciatimeout_ch = timeout(meciatimeout, chan, hz/2);
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}
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/*
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* MECIA Interrupt handler.
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* Check the slot and report any changes.
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*/
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static void
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meciaintr(void *arg)
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{
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u_char reg1;
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int s;
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struct mecia_slot *sp = (struct mecia_slot *) arg;
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s = splhigh();
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/* Check for a card in this slot */
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reg1 = inb(MECIA_REG1);
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if ((sp->last_reg1 ^ reg1) & MECIA_CARDEXIST) {
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sp->last_reg1 = reg1;
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if (reg1 & MECIA_CARDEXIST)
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pccard_event(sp->slt, card_inserted);
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else
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pccard_event(sp->slt, card_removed);
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}
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splx(s);
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}
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/*
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* local functions for PC-98 Original PC-Card controller
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*/
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#define MECIA_ALWAYS_128MAPPING 1 /* trick for using UE2212 */
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int mecia_mode = 0; /* almost the same as the value in MECIA_REG2 */
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static unsigned char reg_winsel = MECIA_UNMAPWIN;
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static unsigned short reg_pagofs = 0;
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static int
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mecia_memory(struct slot *slt, int win)
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{
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struct mem_desc *mp = &slt->mem[win];
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unsigned char x;
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if (mp->flags & MDF_ACTIVE) {
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/* slot = 0, window = 0, sys_addr = 0xda000, length = 8KB */
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if ((unsigned long)mp->start != 0xda000) {
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printf(
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"sys_addr must be 0xda000. requested address = %p\n",
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mp->start);
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return (EINVAL);
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}
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/* omajinai ??? */
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outb(MECIA_REG0, 0);
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x = inb(MECIA_REG1);
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x &= 0xfc;
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x |= 0x02;
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outb(MECIA_REG1, x);
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reg_winsel = inb(MECIA_REG_WINSEL);
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reg_pagofs = inw(MECIA_REG_PAGOFS);
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outb(MECIA_REG_WINSEL, MECIA_MAPWIN);
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outw(MECIA_REG_PAGOFS, (mp->card >> 13)); /* 8KB */
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if (mp->flags & MDF_ATTR)
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outb(MECIA_REG7, inb(MECIA_REG7) | MECIA_ATTRMEM);
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else
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outb(MECIA_REG7, inb(MECIA_REG7) & (~MECIA_ATTRMEM));
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outb(MECIA_REG_WINSEL, MECIA_MAPWIN);
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#if 0
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if ((mp->flags & MDF_16BITS) == 1) /* 16bit */
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outb(MECIA_REG2, inb(MECIA_REG2) & (~MECIA_8BIT));
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else /* 8bit */
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outb(MECIA_REG2, inb(MECIA_REG2) | MECIA_8BIT);
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#endif
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} else { /* !(mp->flags & MDF_ACTIVE) */
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outb(MECIA_REG0, 0);
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x = inb(MECIA_REG1);
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x &= 0xfc;
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x |= 0x02;
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outb(MECIA_REG1, x);
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#if 0
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outb(MECIA_REG_WINSEL, MECIA_UNMAPWIN);
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outw(MECIA_REG_PAGOFS, 0);
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#else
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outb(MECIA_REG_WINSEL, reg_winsel);
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outw(MECIA_REG_PAGOFS, reg_pagofs);
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#endif
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}
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return (0);
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}
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static int
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mecia_io(struct slot *slt, int win)
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{
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struct io_desc *ip = &slt->io[win];
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unsigned char x;
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unsigned short cardbase;
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u_short ofst;
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if (win != 0) {
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/* ignore for UE2212 */
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printf(
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"mecia:Illegal MECIA I/O window(%d) request! Ignored.\n", win);
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/* return (EINVAL);*/
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return (0);
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}
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if (ip->flags & IODF_ACTIVE) {
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x = inb(MECIA_REG2) & 0x0f;
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#if 0
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if (! (ip->flags & IODF_CS16))
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x |= MECIA_8BIT;
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#else
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if (! (ip->flags & IODF_16BIT)) {
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x |= MECIA_8BIT;
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mecia_mode |= MECIA_8BIT;
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}
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#endif
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ofst = ip->start & 0xf;
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cardbase = ip->start & ~0xf;
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#ifndef MECIA_ALWAYS_128MAPPING
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if (ip->size + ofst > 16)
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#endif
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{ /* 128bytes mapping */
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x |= MECIA_MAP128;
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mecia_mode |= MECIA_MAP128;
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ofst |= ((cardbase & 0x70) << 4);
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cardbase &= ~0x70;
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}
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x |= MECIA_MAPIO;
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outb(MECIA_REG2, x);
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outw(MECIA_REG4, MECIA_IOBASE); /* 98side I/O base */
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outw(MECIA_REG5, cardbase); /* card side I/O base */
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if (bootverbose) {
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printf("mecia: I/O mapped 0x%04x(98) -> "
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"0x%04x(Card) and width %d bytes\n",
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MECIA_IOBASE+ofst, ip->start, ip->size);
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printf("mecia: reg2=0x%02x reg3=0x%02x reg7=0x%02x\n",
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inb(MECIA_REG2), inb(MECIA_REG3),
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inb(MECIA_REG7));
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printf("mecia: mode=%d\n", mecia_mode);
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}
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ip->start = MECIA_IOBASE + ofst;
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} else {
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outb(MECIA_REG2, inb(MECIA_REG2) & (~MECIA_MAPIO));
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mecia_mode = 0;
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}
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return (0);
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}
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static int
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mecia_power(struct slot *slt)
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{
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unsigned char reg;
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reg = inb(MECIA_REG7) & (~MECIA_VPP12V);
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switch(slt->pwr.vpp) {
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default:
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return (EINVAL);
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case 50:
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break;
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case 120:
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reg |= MECIA_VPP12V;
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break;
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}
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outb(MECIA_REG7, reg);
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DELAY(100*1000);
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reg = inb(MECIA_REG2) & (~MECIA_VCC3P3V);
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switch(slt->pwr.vcc) {
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default:
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return (EINVAL);
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case 33:
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reg |= MECIA_VCC3P3V;
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break;
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case 50:
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break;
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}
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outb(MECIA_REG2, reg);
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DELAY(100*1000);
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return (0);
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}
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static void
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mecia_mapirq(struct slot *slt, int irq)
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{
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u_char x;
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switch (irq) {
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case 3:
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x = MECIA_INT0;
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break;
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case 5:
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x = MECIA_INT1;
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break;
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case 6:
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x = MECIA_INT2;
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break;
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case 10:
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x = MECIA_INT4;
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break;
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case 12:
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x = MECIA_INT5;
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break;
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case 0: /* disable */
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x = MECIA_INTDISABLE;
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break;
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default:
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printf("mecia: illegal irq %d\n", irq);
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return;
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}
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#ifdef MECIA_DEBUG
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printf("mecia: irq=%d mapped.\n", irq);
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#endif
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outb(MECIA_REG3, x);
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}
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static void
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mecia_reset(void *chan)
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{
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struct slot *slt = chan;
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outb(MECIA_REG0, 0);
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outb(MECIA_REG2, inb(MECIA_REG2) & (~MECIA_MAPIO));
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outb(MECIA_REG3, MECIA_INTDISABLE);
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#if 0
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/* mecia_reset() is called after mecia_power() */
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outb(MECIA_REG2, inb(MECIA_REG2) & (~MECIA_VCC3P3V));
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outb(MECIA_REG7, inb(MECIA_REG7) & (~MECIA_VPP12V));
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#endif
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outb(MECIA_REG1, 0);
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selwakeup(&slt->selp);
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}
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static void
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mecia_disable(struct slot *slt)
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{
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/* null function */
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}
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static void
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mecia_resume(struct slot *slt)
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{
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/* XXX MECIA How ? */
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}
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static int
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mecia_activate_resource(device_t dev, device_t child, int type, int rid,
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struct resource *r)
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{
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struct pccard_devinfo *devi = device_get_ivars(child);
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int err;
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if (dev != device_get_parent(device_get_parent(child)) || devi == NULL)
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return (bus_generic_activate_resource(dev, child, type,
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rid, r));
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switch (type) {
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case SYS_RES_IOPORT: {
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struct io_desc *ip;
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ip = &devi->slt->io[rid];
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if (ip->flags == 0) {
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if (rid == 0)
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ip->flags = IODF_WS | IODF_16BIT | IODF_CS16;
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else
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ip->flags = devi->slt->io[0].flags;
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}
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ip->flags |= IODF_ACTIVE;
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ip->start = rman_get_start(r);
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ip->size = rman_get_end(r) - rman_get_start(r) + 1;
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err = mecia_cinfo.mapio(devi->slt, rid);
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if (err)
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return (err);
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break;
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}
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case SYS_RES_IRQ:
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/*
|
|
* We actually defer the activation of the IRQ resource
|
|
* until the interrupt is registered to avoid stray
|
|
* interrupt messages.
|
|
*/
|
|
break;
|
|
case SYS_RES_MEMORY: {
|
|
struct mem_desc *mp;
|
|
if (rid >= NUM_MEM_WINDOWS)
|
|
return (EINVAL);
|
|
mp = &devi->slt->mem[rid];
|
|
mp->flags |= MDF_ACTIVE;
|
|
mp->start = (caddr_t) rman_get_start(r);
|
|
mp->size = rman_get_end(r) - rman_get_start(r) + 1;
|
|
err = mecia_cinfo.mapmem(devi->slt, rid);
|
|
if (err)
|
|
return (err);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
err = bus_generic_activate_resource(dev, child, type, rid, r);
|
|
return (err);
|
|
}
|
|
|
|
static int
|
|
mecia_deactivate_resource(device_t dev, device_t child, int type, int rid,
|
|
struct resource *r)
|
|
{
|
|
struct pccard_devinfo *devi = device_get_ivars(child);
|
|
int err;
|
|
|
|
if (dev != device_get_parent(device_get_parent(child)) || devi == NULL)
|
|
return (bus_generic_deactivate_resource(dev, child, type,
|
|
rid, r));
|
|
|
|
switch (type) {
|
|
case SYS_RES_IOPORT: {
|
|
struct io_desc *ip = &devi->slt->io[rid];
|
|
ip->flags &= ~IODF_ACTIVE;
|
|
err = mecia_cinfo.mapio(devi->slt, rid);
|
|
if (err)
|
|
return (err);
|
|
break;
|
|
}
|
|
case SYS_RES_IRQ:
|
|
break;
|
|
case SYS_RES_MEMORY: {
|
|
struct mem_desc *mp = &devi->slt->mem[rid];
|
|
mp->flags &= ~(MDF_ACTIVE | MDF_ATTR);
|
|
err = mecia_cinfo.mapmem(devi->slt, rid);
|
|
if (err)
|
|
return (err);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
err = bus_generic_deactivate_resource(dev, child, type, rid, r);
|
|
return (err);
|
|
}
|
|
|
|
static int
|
|
mecia_setup_intr(device_t dev, device_t child, struct resource *irq,
|
|
int flags, driver_intr_t *intr, void *arg, void **cookiep)
|
|
{
|
|
struct pccard_devinfo *devi = device_get_ivars(child);
|
|
int err;
|
|
|
|
if (((1 << rman_get_start(irq)) & MECIA_INT_MASK_ALLOWED) == 0) {
|
|
device_printf(dev, "Hardware does not support irq %ld.\n",
|
|
rman_get_start(irq));
|
|
return (EINVAL);
|
|
}
|
|
|
|
err = bus_generic_setup_intr(dev, child, irq, flags, intr, arg,
|
|
cookiep);
|
|
if (err == 0)
|
|
mecia_cinfo.mapirq(devi->slt, rman_get_start(irq));
|
|
else
|
|
device_printf(dev, "Error %d irq %ld\n", err,
|
|
rman_get_start(irq));
|
|
return (err);
|
|
}
|
|
|
|
static int
|
|
mecia_teardown_intr(device_t dev, device_t child, struct resource *irq,
|
|
void *cookie)
|
|
{
|
|
struct pccard_devinfo *devi = device_get_ivars(child);
|
|
|
|
mecia_cinfo.mapirq(devi->slt, 0);
|
|
return (bus_generic_teardown_intr(dev, child, irq, cookie));
|
|
}
|
|
|
|
static int
|
|
mecia_set_res_flags(device_t bus, device_t child, int restype, int rid,
|
|
u_long value)
|
|
{
|
|
struct pccard_devinfo *devi = device_get_ivars(child);
|
|
int err = 0;
|
|
|
|
switch (restype) {
|
|
case SYS_RES_MEMORY: {
|
|
struct mem_desc *mp = &devi->slt->mem[rid];
|
|
switch (value) {
|
|
case PCCARD_A_MEM_COM:
|
|
mp->flags &= ~MDF_ATTR;
|
|
break;
|
|
case PCCARD_A_MEM_ATTR:
|
|
mp->flags |= MDF_ATTR;
|
|
break;
|
|
case PCCARD_A_MEM_8BIT:
|
|
mp->flags &= ~MDF_16BITS;
|
|
break;
|
|
case PCCARD_A_MEM_16BIT:
|
|
mp->flags |= MDF_16BITS;
|
|
break;
|
|
}
|
|
err = mecia_cinfo.mapmem(devi->slt, rid);
|
|
break;
|
|
}
|
|
default:
|
|
err = EOPNOTSUPP;
|
|
}
|
|
return (err);
|
|
}
|
|
|
|
static int
|
|
mecia_get_res_flags(device_t bus, device_t child, int restype, int rid,
|
|
u_long *value)
|
|
{
|
|
struct pccard_devinfo *devi = device_get_ivars(child);
|
|
int err = 0;
|
|
|
|
if (value == 0)
|
|
return (ENOMEM);
|
|
|
|
switch (restype) {
|
|
case SYS_RES_IOPORT: {
|
|
struct io_desc *ip = &devi->slt->io[rid];
|
|
*value = ip->flags;
|
|
break;
|
|
}
|
|
case SYS_RES_MEMORY: {
|
|
struct mem_desc *mp = &devi->slt->mem[rid];
|
|
*value = mp->flags;
|
|
break;
|
|
}
|
|
default:
|
|
err = EOPNOTSUPP;
|
|
}
|
|
return (err);
|
|
}
|
|
|
|
static int
|
|
mecia_set_memory_offset(device_t bus, device_t child, int rid,
|
|
u_int32_t offset, u_int32_t *deltap)
|
|
{
|
|
struct pccard_devinfo *devi = device_get_ivars(child);
|
|
struct mem_desc *mp = &devi->slt->mem[rid];
|
|
|
|
mp->card = offset;
|
|
if (deltap)
|
|
*deltap = 0; /* XXX BAD XXX */
|
|
return (mecia_cinfo.mapmem(devi->slt, rid));
|
|
}
|
|
|
|
static int
|
|
mecia_get_memory_offset(device_t bus, device_t child, int rid,
|
|
u_int32_t *offset)
|
|
{
|
|
struct pccard_devinfo *devi = device_get_ivars(child);
|
|
struct mem_desc *mp = &devi->slt->mem[rid];
|
|
|
|
if (offset == 0)
|
|
return (ENOMEM);
|
|
|
|
*offset = mp->card;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t mecia_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, mecia_probe),
|
|
DEVMETHOD(device_attach, mecia_attach),
|
|
DEVMETHOD(device_detach, bus_generic_detach),
|
|
DEVMETHOD(device_shutdown, bus_generic_shutdown),
|
|
DEVMETHOD(device_suspend, bus_generic_suspend),
|
|
DEVMETHOD(device_resume, bus_generic_resume),
|
|
|
|
/* Bus interface */
|
|
DEVMETHOD(bus_print_child, bus_generic_print_child),
|
|
DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
|
|
DEVMETHOD(bus_release_resource, bus_generic_release_resource),
|
|
DEVMETHOD(bus_activate_resource, mecia_activate_resource),
|
|
DEVMETHOD(bus_deactivate_resource, mecia_deactivate_resource),
|
|
DEVMETHOD(bus_setup_intr, mecia_setup_intr),
|
|
DEVMETHOD(bus_teardown_intr, mecia_teardown_intr),
|
|
|
|
/* Card interface */
|
|
DEVMETHOD(card_set_res_flags, mecia_set_res_flags),
|
|
DEVMETHOD(card_get_res_flags, mecia_get_res_flags),
|
|
DEVMETHOD(card_set_memory_offset, mecia_set_memory_offset),
|
|
DEVMETHOD(card_get_memory_offset, mecia_get_memory_offset),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
devclass_t mecia_devclass;
|
|
|
|
static driver_t mecia_driver = {
|
|
"mecia",
|
|
mecia_methods,
|
|
sizeof(struct mecia_slot)
|
|
};
|
|
|
|
DRIVER_MODULE(mecia, isa, mecia_driver, mecia_devclass, 0, 0);
|