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cf776d8152
freebsd/sys/pccard/pcic_isa.c
Warner Losh 592823383b Move to using a chip function + function pointers to deal with the 
function and csc interrupt routing path (eg, ISA or PCI) so that we
can more easily switch between the two.

When we don't have a card ISR, put the function interrupt into ISA
mode.  This effectively masks the interrupt since it happens once, and
not again until we have an ISR.  This should help hangs, and might
help people that unwisely update the kernel w/o updating pccardd.
This is done at mapirq time.

Force CL-PD6729/30 to use ISA interrupt routing and maybe even detect
the number of pccard slots properly (this is still WIP).  We aren't
going to support PCI interrupts for this release.  A future release
should support them, however.  Shibata-san's 3.3V fixes are not
included.

Add a hack which should, in i386, rewrite IRQ 0 cardbus bridges to be
IRQ 255, which should cause interrupts to be routed.  This is mostly
untested since my one tester disappeared after reporting nothing
changed.

Implement, but do not use, a power method called cardbus.  It looked
like a great way to get around the 3.3V problem, but it seems that you
can only use it to power cardbus cards (I get no CIS when I enable it,
so maybe we're programming things bogusly).

GC the intr and argp stuff from the slot database.

Improve the ToPIC support with the power hacks that Nakagawa-san
published in FreeBSD Press and that Hiroyuki Aizu-san ported to
-stable.  The ToPIC hacks were for 3.3V support in ToPIC 100, but it
looks like the '97 also has identical registers, so use them too.

Add some #defines for the cardbus power stuff.

Finally implement making CSC on the Ricoh chips ISA or PCI.  This will
allow polling mode to work on vaios, I think.

Add some minor debugging.  This should likely be cleaned up or put
behing a bootverbose.

Some of this work, and earlier work, was influanced by Chiharu
Shibata-san's power handing patches posted to bsd-nomads:15866.

MFC: Soon, if possible.
2001-09-04 04:47:58 +00:00

399 lines
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/*
* 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.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/sysctl.h>
#include <sys/systm.h>
#include <pccard/i82365.h>
#include <pccard/cardinfo.h>
#include <pccard/slot.h>
#include <pccard/pcicvar.h>
/* Get pnp IDs */
#include <isa/isavar.h>
#include <dev/pcic/i82365reg.h>
#include <dev/pccard/pccardvar.h>
#include "card_if.h"
static struct isa_pnp_id pcic_ids[] = {
{PCIC_PNP_ACTIONTEC, NULL}, /* AEI0218 */
{PCIC_PNP_IBM3765, NULL}, /* IBM3765 */
{PCIC_PNP_82365, NULL}, /* PNP0E00 */
{PCIC_PNP_CL_PD6720, NULL}, /* PNP0E01 */
{PCIC_PNP_VLSI_82C146, NULL}, /* PNP0E02 */
{PCIC_PNP_82365_CARDBUS, NULL}, /* PNP0E03 */
{PCIC_PNP_SCM_SWAPBOX, NULL}, /* SCM0469 */
{PCIC_NEC_PC9801_102, NULL}, /* NEC8091 */
{PCIC_NEC_PC9821RA_E01, NULL}, /* NEC8121 */
{0}
};
static struct {
const char *name;
u_int32_t flags;
} bridges[] = {
{ "Intel i82365SL-A/B", PCIC_AB_POWER},
{ "IBM PCIC", PCIC_AB_POWER},
{ "VLSI 82C146", PCIC_AB_POWER},
{ "Cirrus logic 672x", PCIC_PD_POWER},
{ "Cirrus logic 6710", PCIC_PD_POWER},
{ "Vadem 365", PCIC_VG_POWER},
{ "Vadem 465", PCIC_VG_POWER},
{ "Vadem 468", PCIC_VG_POWER},
{ "Vadem 469", PCIC_VG_POWER},
{ "Ricoh RF5C296", PCIC_RICOH_POWER},
{ "Ricoh RF5C396", PCIC_RICOH_POWER},
{ "IBM KING", PCIC_KING_POWER},
{ "Intel i82365SL-DF", PCIC_DF_POWER}
};
static pcic_intr_way_t pcic_isa_intr_way;
static pcic_init_t pcic_isa_init;
struct pcic_chip pcic_isa_chip = {
pcic_isa_intr_way,
pcic_isa_intr_way,
pcic_isa_mapirq,
pcic_isa_init
};
/*
* Look for an Intel PCIC (or compatible).
* For each available slot, allocate a PC-CARD slot.
*/
static int
pcic_isa_probe(device_t dev)
{
int slotnum, validslots = 0;
struct pcic_slot *sp;
struct pcic_slot *sp0;
struct pcic_slot *sp1;
struct pcic_slot spsave;
unsigned char c;
struct resource *r;
int rid;
struct pcic_softc *sc;
int error;
/* Check isapnp ids */
error = ISA_PNP_PROBE(device_get_parent(dev), dev, pcic_ids);
if (error == ENXIO)
return (ENXIO);
if (bus_get_resource_start(dev, SYS_RES_IOPORT, 0) == 0)
bus_set_resource(dev, SYS_RES_IOPORT, 0, PCIC_PORT_0,
PCIC_NPORT);
rid = 0;
r = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
if (!r) {
if (bootverbose)
device_printf(dev, "Cannot get I/O range\n");
return (ENOMEM);
}
sc = (struct pcic_softc *) device_get_softc(dev);
sc->dev = dev;
sp = &sc->slots[0];
for (slotnum = 0; slotnum < PCIC_CARD_SLOTS; slotnum++, sp++) {
/*
* Initialise the PCIC slot table.
*/
sp->getb = pcic_getb_io;
sp->putb = pcic_putb_io;
sp->bst = rman_get_bustag(r);
sp->bsh = rman_get_bushandle(r);
sp->offset = slotnum * PCIC_SLOT_SIZE;
sp->controller = -1;
}
/*
* Prescan for the broken VLSI chips.
*
* According to the Linux PCMCIA code from David Hinds,
* working chipsets return 0x84 from their (correct) ID ports,
* while the broken ones would need to be probed at the new
* offset we set after we assume it's broken.
*
* Note: because of this, we may incorrectly detect a single
* slot vlsi chip as a i82365sl step D. I cannot find a
* datasheet for the affected chip, so that's the best we can
* do for now.
*/
sp0 = &sc->slots[0];
sp1 = &sc->slots[1];
if (sp0->getb(sp0, PCIC_ID_REV) == PCIC_VLSI82C146 &&
sp1->getb(sp1, PCIC_ID_REV) != PCIC_VLSI82C146) {
spsave = *sp1;
sp1->bsh += 4;
sp1->offset = PCIC_SLOT_SIZE << 1;
if (sp1->getb(sp1, PCIC_ID_REV) != PCIC_VLSI82C146) {
*sp1 = spsave;
} else {
sp0->controller = PCIC_VLSI;
sp1->controller = PCIC_VLSI;
}
}
/*
* Look for normal chipsets here.
*/
sp = &sc->slots[0];
for (slotnum = 0; slotnum < PCIC_CARD_SLOTS; slotnum++, sp++) {
/*
* see if there's a PCMCIA controller here
* Intel PCMCIA controllers use 0x82 and 0x83
* IBM clone chips use 0x88 and 0x89, apparently
*/
c = sp->getb(sp, PCIC_ID_REV);
sp->revision = -1;
switch(c) {
/*
* 82365 or clones.
*/
case PCIC_INTEL0:
case PCIC_INTEL1:
sp->controller = PCIC_I82365;
sp->revision = c & 1;
/*
* Check for Vadem chips by unlocking their extra
* registers and looking for valid ID. Bit 3 in
* the ID register is normally 0, except when
* PCIC_VADEMREV is set. Other bridges appear
* to ignore this frobbing.
*/
bus_space_write_1(sp->bst, sp->bsh, PCIC_INDEX, 0x0E);
bus_space_write_1(sp->bst, sp->bsh, PCIC_INDEX, 0x37);
pcic_setb(sp, PCIC_VMISC, PCIC_VADEMREV);
c = sp->getb(sp, PCIC_ID_REV);
if (c & 0x08) {
switch (sp->revision = c & 7) {
case 1:
sp->controller = PCIC_VG365;
break;
case 2:
sp->controller = PCIC_VG465;
break;
case 3:
sp->controller = PCIC_VG468;
break;
default:
sp->controller = PCIC_VG469;
break;
}
pcic_clrb(sp, PCIC_VMISC, PCIC_VADEMREV);
}
/*
* Check for RICOH RF5C[23]96 PCMCIA Controller
*/
c = sp->getb(sp, PCIC_RICOH_ID);
if (c == PCIC_RID_396)
sp->controller = PCIC_RF5C396;
else if (c == PCIC_RID_296)
sp->controller = PCIC_RF5C296;
break;
/*
* Intel i82365sl-DF step or maybe a vlsi 82c146
* we detected the vlsi case earlier, so if the controller
* isn't set, we know it is a i82365sl step D.
*/
case PCIC_INTEL2:
if (sp->controller == -1)
sp->controller = PCIC_I82365SL_DF;
break;
case PCIC_IBM1:
case PCIC_IBM2:
sp->controller = PCIC_IBM;
sp->revision = c & 1;
break;
case PCIC_IBM3:
sp->controller = PCIC_IBM_KING;
sp->revision = c & 1;
break;
default:
continue;
}
/*
* Check for Cirrus logic chips.
*/
sp->putb(sp, PCIC_CLCHIP, 0);
c = sp->getb(sp, PCIC_CLCHIP);
if ((c & PCIC_CLC_TOGGLE) == PCIC_CLC_TOGGLE) {
c = sp->getb(sp, PCIC_CLCHIP);
if ((c & PCIC_CLC_TOGGLE) == 0) {
if (c & PCIC_CLC_DUAL)
sp->controller = PCIC_PD672X;
else
sp->controller = PCIC_PD6710;
sp->revision = 8 - ((c & 0x1F) >> 2);
}
}
device_set_desc(dev, bridges[(int) sp->controller].name);
sc->flags = bridges[(int) sp->controller].flags;
/*
* OK it seems we have a PCIC or lookalike.
* Allocate a slot and initialise the data structures.
*/
validslots++;
sp->slt = (struct slot *) 1;
/*
* Modem cards send the speaker audio (dialing noises)
* to the host's speaker. Cirrus Logic PCIC chips must
* enable this. There is also a Low Power Dynamic Mode bit
* that claims to reduce power consumption by 30%, so
* enable it and hope for the best.
*/
if (sp->controller == PCIC_PD672X) {
pcic_setb(sp, PCIC_MISC1, PCIC_MISC1_SPEAKER);
pcic_setb(sp, PCIC_MISC2, PCIC_LPDM_EN);
}
}
bus_release_resource(dev, SYS_RES_IOPORT, rid, r);
return (validslots ? 0 : ENXIO);
}
static int
pcic_isa_attach(device_t dev)
{
struct pcic_softc *sc;
int rid;
struct resource *r;
int irq = 0;
int error;
sc = device_get_softc(dev);
rid = 0;
r = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, RF_ACTIVE);
if (!r) {
pcic_dealloc(dev);
return (ENXIO);
}
sc->iorid = rid;
sc->iores = r;
sc->csc_route = pcic_iw_isa;
sc->func_route = pcic_iw_isa;
sc->chip = &pcic_isa_chip;
rid = 0;
r = NULL;
r = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE);
if (r == NULL && pcic_override_irq != 0) {
irq = pcic_override_irq;
r = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, irq, irq, 1,
RF_ACTIVE);
}
if (r && ((1 << (rman_get_start(r))) & PCIC_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);
irq = 0;
r = NULL;
}
sc->irqrid = rid;
sc->irqres = r;
irq = 0;
if (r != NULL) {
error = bus_setup_intr(dev, r, INTR_TYPE_MISC,
pcic_isa_intr, (void *) sc, &sc->ih);
if (error) {
pcic_dealloc(dev);
return (error);
}
irq = rman_get_start(r);
device_printf(dev, "management irq %d\n", irq);
}
sc->irq = irq;
if (irq == 0) {
sc->slot_poll = pcic_timeout;
sc->timeout_ch = timeout(sc->slot_poll, (void *) sc, hz/2);
device_printf(dev, "Polling mode\n");
}
return (pcic_attach(dev));
}
/*
* ISA cards can only do ISA interrupts. There's no need to do
* anything but check args for sanity.
*/
static int
pcic_isa_intr_way(struct pcic_slot *sp, enum pcic_intr_way iw)
{
if (iw != pcic_iw_isa)
return (EINVAL);
return (0);
}
/*
* No speicial initialization is necesary for ISA cards.
*/
static void
pcic_isa_init(device_t dev)
{
}
static device_method_t pcic_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, pcic_isa_probe),
DEVMETHOD(device_attach, pcic_isa_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, pcic_alloc_resource),
DEVMETHOD(bus_release_resource, bus_generic_release_resource),
DEVMETHOD(bus_activate_resource, pcic_activate_resource),
DEVMETHOD(bus_deactivate_resource, pcic_deactivate_resource),
DEVMETHOD(bus_setup_intr, pcic_setup_intr),
DEVMETHOD(bus_teardown_intr, pcic_teardown_intr),
/* Card interface */
DEVMETHOD(card_set_res_flags, pcic_set_res_flags),
DEVMETHOD(card_get_res_flags, pcic_get_res_flags),
DEVMETHOD(card_set_memory_offset, pcic_set_memory_offset),
DEVMETHOD(card_get_memory_offset, pcic_get_memory_offset),
{ 0, 0 }
};
static driver_t pcic_driver = {
"pcic",
pcic_methods,
sizeof(struct pcic_softc)
};
DRIVER_MODULE(pcic, isa, pcic_driver, pcic_devclass, 0, 0);
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