FreeBSD-5.3/sys/pccard/pcic_isa.c
/*
* 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: src/sys/pccard/pcic_isa.c,v 1.26 2004/08/13 06:57:31 imp Exp $
*/
#define OBSOLETE_IN_6
#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/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 6722", 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 an 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 an 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_PD6722;
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_PD6722) {
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);