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freebsd/sys/dev/pcic/i82365_isa.c
2001-04-11 20:22:16 +00:00

404 lines
12 KiB
C

/* $NetBSD: i82365_isasubr.c,v 1.3 1999/10/15 06:07:27 haya Exp $ */
/* $NetBSD: i82365_isa.c,v 1.11 1998/06/09 07:25:00 thorpej Exp $ */
/* $FreeBSD$ */
/*
* Copyright (c) 1998 Bill Sommerfeld. All rights reserved.
* Copyright (c) 1997 Marc Horowitz. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Marc Horowitz.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/kernel.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <isa/isavar.h>
#include <dev/pccard/pccardreg.h>
#include <dev/pccard/pccardvar.h>
#include <dev/pcic/i82365reg.h>
#include <dev/pcic/i82365var.h>
#include "power_if.h"
#include "card_if.h"
/*****************************************************************************
* Configurable parameters.
*****************************************************************************/
/*
* Default I/O allocation range. If both are set to non-zero, these
* values will be used instead. Otherwise, the code attempts to probe
* the bus width. Systems with 10 address bits should use 0x300 and 0xff.
* Systems with 12 address bits (most) should use 0x400 and 0xbff.
*/
#ifndef PCIC_ISA_ALLOC_IOBASE
#define PCIC_ISA_ALLOC_IOBASE 0
#endif
#ifndef PCIC_ISA_ALLOC_IOSIZE
#define PCIC_ISA_ALLOC_IOSIZE 0
#endif
int pcic_isa_alloc_iobase = PCIC_ISA_ALLOC_IOBASE;
int pcic_isa_alloc_iosize = PCIC_ISA_ALLOC_IOSIZE;
/*
* Default IRQ allocation bitmask. This defines the range of allowable
* IRQs for PCCARD slots. Useful if order of probing would screw up other
* devices, or if PCIC hardware/cards have trouble with certain interrupt
* lines.
*
* We disable IRQ 10 by default, since some common laptops (namely, the
* NEC Versa series) reserve IRQ 10 for the docking station SCSI interface.
*/
#ifndef PCIC_ISA_INTR_ALLOC_MASK
#define PCIC_ISA_INTR_ALLOC_MASK 0xfbff
#endif
int pcic_isa_intr_alloc_mask = PCIC_ISA_INTR_ALLOC_MASK;
/*****************************************************************************
* End of configurable parameters.
*****************************************************************************/
#define PCICISADEBUG 1
#ifdef PCICISADEBUG
int pcicisa_debug = PCICISADEBUG;
#define DPRINTF(arg) if (pcicisa_debug) printf arg;
#define DEVPRINTF(arg) if (pcicisa_debug) device_printf arg;
#else
#define DPRINTF(arg)
#define DEVPRINTF(arg)
#endif
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 */
{0}
};
static void
pcic_isa_bus_width_probe (device_t dev)
{
struct pcic_softc *sc = PCIC_SOFTC(dev);
bus_space_handle_t ioh_high;
int i, iobuswidth, tmp1, tmp2;
int rid;
u_long base;
u_int32_t length;
bus_space_tag_t iot;
bus_space_handle_t ioh;
struct resource *r;
base = rman_get_start(sc->port_res);
length = rman_get_size(sc->port_res);
iot = sc->iot;
ioh = sc->ioh;
/*
* figure out how wide the isa bus is. Do this by checking if the
* pcic controller is mirrored 0x400 above where we expect it to be.
*/
iobuswidth = 12;
rid = 1;
r = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, base + 0x400,
base + 0x400 + length, length, RF_ACTIVE);
if (!r) {
printf("Can't allocated mirror area for pcic bus width probe\n");
return;
}
ioh_high = rman_get_bushandle(r);
for (i = 0; i < PCIC_NSLOTS; i++) {
if (sc->handle[i].flags & PCIC_FLAG_SOCKETP) {
/*
* read the ident flags from the normal space and
* from the mirror, and compare them
*/
bus_space_write_1(iot, ioh, PCIC_REG_INDEX,
sc->handle[i].sock + PCIC_IDENT);
tmp1 = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
bus_space_write_1(iot, ioh_high, PCIC_REG_INDEX,
sc->handle[i].sock + PCIC_IDENT);
tmp2 = bus_space_read_1(iot, ioh_high, PCIC_REG_DATA);
if (tmp1 == tmp2)
iobuswidth = 10;
}
}
bus_release_resource(dev, SYS_RES_IOPORT, rid, r);
/*
* XXX mycroft recommends I/O space range 0x400-0xfff . I should put
* this in a header somewhere
*/
/*
* XXX some hardware doesn't seem to grok addresses in 0x400 range--
* apparently missing a bit or more of address lines. (e.g.
* CIRRUS_PD672X with Linksys EthernetCard ne2000 clone in TI
* TravelMate 5000--not clear which is at fault)
*
* Add a kludge to detect 10 bit wide buses and deal with them,
* and also a config file option to override the probe.
*/
if (iobuswidth == 10) {
sc->iobase = 0x300;
sc->iosize = 0x0ff;
} else {
#if 0
/*
* This is what we'd like to use, but...
*/
sc->iobase = 0x400;
sc->iosize = 0xbff;
#else
/*
* ...the above bus width probe doesn't always work.
* So, experimentation has shown the following range
* to not lose on systems that 0x300-0x3ff loses on
* (e.g. the NEC Versa 6030X).
*/
sc->iobase = 0x330;
sc->iosize = 0x0cf;
#endif
}
DEVPRINTF((dev, "bus_space_alloc range 0x%04lx-0x%04lx (probed)\n",
(long) sc->iobase, (long) sc->iobase + sc->iosize));
if (pcic_isa_alloc_iobase && pcic_isa_alloc_iosize) {
sc->iobase = pcic_isa_alloc_iobase;
sc->iosize = pcic_isa_alloc_iosize;
DEVPRINTF((dev, "bus_space_alloc range 0x%04lx-0x%04lx "
"(config override)\n", (long) sc->iobase,
(long) sc->iobase + sc->iosize));
}
}
#if 0
static int
pcic_isa_check(device_t dev, u_int16_t addr)
{
bus_space_tag_t iot;
bus_space_handle_t ioh;
int val, found;
int rid;
struct resource *res;
rid = 0;
res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, addr, addr,
PCIC_IOSIZE, RF_ACTIVE);
if (!res)
return(ENXIO);
iot = rman_get_bustag(res);
ioh = rman_get_bushandle(res);
found = 0;
/*
* this could be done with a loop, but it would violate the
* abstraction
*/
bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SA + PCIC_IDENT);
val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
if (pcic_ident_ok(val))
found++;
bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C0SB + PCIC_IDENT);
val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
if (pcic_ident_ok(val))
found++;
bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SA + PCIC_IDENT);
val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
if (pcic_ident_ok(val))
found++;
bus_space_write_1(iot, ioh, PCIC_REG_INDEX, C1SB + PCIC_IDENT);
val = bus_space_read_1(iot, ioh, PCIC_REG_DATA);
if (pcic_ident_ok(val))
found++;
bus_release_resource(dev, SYS_RES_IOPORT, rid, res);
return (found);
}
#endif
static int
pcic_isa_probe(device_t dev)
{
int error;
struct resource *res;
int rid;
int i;
u_long mem;
/* Check isapnp ids */
error = ISA_PNP_PROBE(device_get_parent(dev), dev, pcic_ids);
if (error == ENXIO)
return (ENXIO);
/* If we had some other problem. */
if (!(error == 0 || error == ENOENT))
return (error);
/* If we have the resources we need then we're good to go. */
if (bus_get_resource_start(dev, SYS_RES_IOPORT, 0) == 0)
return (ENXIO);
rid = 0;
res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, RF_ACTIVE);
if (res == NULL) {
/*
* No IRQ specified, find one. This can be due to the PnP
* data not specifying any IRQ
*/
for (i = 0; i < 16; i++) {
if (((1 << i) & PCIC_INTR_IRQ_VALIDMASK) == 0)
continue;
res = bus_alloc_resource(dev, SYS_RES_IRQ,
&rid, i, i, 1, RF_ACTIVE);
if (res != NULL)
break;
}
if (res == NULL)
return (ENXIO);
mem = rman_get_start(res);
bus_release_resource(dev, SYS_RES_IRQ, rid, res);
bus_set_resource(dev, SYS_RES_IRQ, 0, i, 1);
} else {
bus_release_resource(dev, SYS_RES_IRQ, rid, res);
}
/* XXX This might not be needed in future, get it directly from
* XXX parent */
rid = 0;
res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 0, ~0,
1 << 13, RF_ACTIVE);
if (res == NULL) {
/*
* We failed to get memory. Since this XXX comment above
* indicates that this is transient, we try to get a hunk
* of memory in the isa hole. Sure would be nice if there
* were some MI constants for this.
*/
res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
0xa0000, 0xdffff, 1 << 13, RF_ACTIVE);
if (res != NULL) {
mem = rman_get_start(res);
bus_release_resource(dev, SYS_RES_MEMORY, rid, res);
bus_set_resource(dev, SYS_RES_MEMORY, 0, mem, 1 << 13);
}
} else {
bus_release_resource(dev, SYS_RES_MEMORY, rid, res);
}
if (res == NULL) {
device_printf(dev, "Cannot allocate mem\n");
return ENOMEM;
}
return (0);
}
static int
pcic_isa_attach(device_t dev)
{
int err = 0;
if ((err = pcic_attach(dev)) == 0)
pcic_isa_bus_width_probe (dev);
return err;
}
static int
pcic_isa_detach(device_t dev)
{
pcic_detach(dev);
return 0;
}
static device_method_t pcic_isa_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, pcic_isa_probe),
DEVMETHOD(device_attach, pcic_isa_attach),
DEVMETHOD(device_detach, pcic_isa_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, pcic_suspend),
DEVMETHOD(device_resume, pcic_resume),
/* Bus Interface */
DEVMETHOD(bus_driver_added, bus_generic_driver_added),
DEVMETHOD(bus_print_child, bus_generic_print_child),
DEVMETHOD(bus_alloc_resource, pcic_alloc_resource),
DEVMETHOD(bus_release_resource, pcic_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),
/* pccard/cardbus interface */
DEVMETHOD(card_set_res_flags, pcic_set_res_flags),
DEVMETHOD(card_set_memory_offset, pcic_set_memory_offset),
/* Power Interface */
DEVMETHOD(power_enable_socket, pcic_enable_socket),
DEVMETHOD(power_disable_socket, pcic_disable_socket),
{ 0, 0 }
};
static driver_t pcic_driver = {
"pcic",
pcic_isa_methods,
sizeof(struct pcic_softc)
};
static devclass_t pcic_devclass;
DRIVER_MODULE(pcic, isa, pcic_driver, pcic_devclass, 0, 0);