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freebsd/sys/pccard/mecia.c

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