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NetBSD/sys/arch/prep/pnpbus/if_we_pnpbus.c
garbled 17ca05a76f 1) Modify pnpbus attachment code to properly decode pnp memory range packets. 
2) Modify pnpbus attachment code to record the chipid of the device if it
   has one.
3) Change the clock probes to use the chipid, rather than relying on
potentially untrustworthy subtype and interface.
4) Add decoding of memory ranges to the RESIDUAL_DUMP code.
5) Add a we@pnpbus device to allow netbooting and root device detection
from an IBM we ethernet.  (it will only work if your firmware detects it)
6) Because I moved the pnpbus probe to occur prior to pci and isa, it
screwed up the root device detection and firmware path building code.
Completely rewrite the fw-path detection code to deal with this.
2006-06-23 03:08:41 +00:00

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/* $NetBSD: if_we_pnpbus.c,v 1.1 2006/06/23 03:08:41 garbled Exp $ */
/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
/*
* Device driver for National Semiconductor DS8390/WD83C690 based ethernet
* adapters.
*
* Copyright (c) 1994, 1995 Charles M. Hannum. All rights reserved.
*
* Copyright (C) 1993, David Greenman. This software may be used, modified,
* copied, distributed, and sold, in both source and binary form provided that
* the above copyright and these terms are retained. Under no circumstances is
* the author responsible for the proper functioning of this software, nor does
* the author assume any responsibility for damages incurred with its use.
*/
/*
* Device driver for the Western Digital/SMC 8003 and 8013 series,
* and the SMC Elite Ultra (8216).
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_we_pnpbus.c,v 1.1 2006/06/23 03:08:41 garbled Exp $");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/socket.h>
#include <sys/mbuf.h>
#include <sys/syslog.h>
#include <sys/bswap.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/if_types.h>
#include <net/if_media.h>
#include <net/if_ether.h>
#include <machine/bus.h>
#include <machine/intr.h>
#include <machine/isa_machdep.h>
#include <machine/residual.h>
#include <dev/ic/dp8390reg.h>
#include <dev/ic/dp8390var.h>
#include <dev/ic/wereg.h>
#include <dev/ic/wevar.h>
#include <prep/pnpbus/pnpbusvar.h>
int we_pnpbus_probe(struct device *, struct cfdata *, void *);
void we_pnpbus_attach(struct device *, struct device *, void *);
CFATTACH_DECL(we_pnpbus, sizeof(struct we_softc),
we_pnpbus_probe, we_pnpbus_attach, NULL, NULL);
extern struct cfdriver we_cd;
static const char *we_params(bus_space_tag_t, bus_space_handle_t,
u_int8_t *, bus_size_t *, u_int8_t *, int *);
#define WE_DEFAULT_IOMEM 0xe4000
/*
* Delay needed when switching 16-bit access to shared memory.
*/
#define WE_DELAY(wsc) delay(3)
/*
* Enable card RAM, and 16-bit access.
*/
#define WE_MEM_ENABLE(wsc) \
do { \
if ((wsc)->sc_16bitp) \
bus_space_write_1((wsc)->sc_asict, (wsc)->sc_asich, \
WE_LAAR, (wsc)->sc_laar_proto | WE_LAAR_M16EN); \
bus_space_write_1((wsc)->sc_asict, (wsc)->sc_asich, \
WE_MSR, wsc->sc_msr_proto | WE_MSR_MENB); \
WE_DELAY((wsc)); \
} while (0)
/*
* Disable card RAM, and 16-bit access.
*/
#define WE_MEM_DISABLE(wsc) \
do { \
bus_space_write_1((wsc)->sc_asict, (wsc)->sc_asich, \
WE_MSR, (wsc)->sc_msr_proto); \
if ((wsc)->sc_16bitp) \
bus_space_write_1((wsc)->sc_asict, (wsc)->sc_asich, \
WE_LAAR, (wsc)->sc_laar_proto); \
WE_DELAY((wsc)); \
} while (0)
int
we_pnpbus_probe(struct device *parent, struct cfdata *cf, void *aux)
{
struct pnpbus_dev_attach_args *pna = aux;
int ret = 0;
if (strcmp(pna->pna_devid, "IBM2001") == 0)
ret = 1;
if (strcmp(pna->pna_devid, "IBM0010") == 0)
ret = 1;
if (ret)
pnpbus_scan(pna, pna->pna_ppc_dev);
return ret;
}
void
we_pnpbus_attach(struct device *parent, struct device *self, void *aux)
{
struct we_softc *wsc = (struct we_softc *)self;
struct dp8390_softc *sc = &wsc->sc_dp8390;
struct pnpbus_dev_attach_args *pna = aux;
struct pnpbus_irq *irq;
bus_space_tag_t nict, asict, memt;
bus_space_handle_t nich, asich, memh;
bus_size_t memsize = 0x4000;
const char *typestr;
int memfound = 0, i, irqnum;
nict = asict = pna->pna_iot;
memt = pna->pna_memt;
aprint_normal("\n");
if (pnpbus_io_map(&pna->pna_res, 0, &asict, &asich)) {
aprint_error("%s: can't map nic i/o space\n",
device_xname(self));
return;
}
if (bus_space_subregion(asict, asich, WE_NIC_OFFSET, WE_NIC_NPORTS,
&nich)) {
aprint_error("%s: can't subregion i/o space\n",
device_xname(self));
return;
}
typestr = we_params(asict, asich, &wsc->sc_type, &memsize,
&wsc->sc_flags, &sc->is790);
if (typestr == NULL) {
aprint_error("%s: where did the card go?\n",
device_xname(self));
return;
}
/*
* Map memory space. See if any was allocated via PNP, if not, use
* the default.
*/
if (pnpbus_iomem_map(&pna->pna_res, 0, &memt, &memh) == 0)
memfound = 1;
else if (bus_space_map(memt, WE_DEFAULT_IOMEM, memsize, 0, &memh)) {
aprint_error("%s: can't map shared memory\n",
device_xname(self));
return;
}
wsc->sc_asict = asict;
wsc->sc_asich = asich;
sc->sc_regt = nict;
sc->sc_regh = nich;
sc->sc_buft = memt;
sc->sc_bufh = memh;
if (memfound)
pnpbus_getiomem(&pna->pna_res, 0, &wsc->sc_maddr,
&sc->mem_size);
else {
wsc->sc_maddr = WE_DEFAULT_IOMEM;
sc->mem_size = memsize;
}
/* Interface is always enabled. */
sc->sc_enabled = 1;
if (we_config(self, wsc, typestr))
return;
/*
* Enable the configured interrupt.
*/
#if 0
if (sc->is790)
bus_space_write_1(asict, asich, WE790_ICR,
bus_space_read_1(asict, asich, WE790_ICR) |
WE790_ICR_EIL);
else if (wsc->sc_type & WE_SOFTCONFIG)
bus_space_write_1(asict, asich, WE_IRR,
bus_space_read_1(asict, asich, WE_IRR) | WE_IRR_IEN);
#endif
/*
* Establish interrupt handler.
* Loop through all probed IRQs until one looks sane.
*/
for (i = 0, irq = SIMPLEQ_FIRST(&pna->pna_res.irq);
i < pna->pna_res.numirq; i++, irq = SIMPLEQ_NEXT(irq, next)) {
irqnum = ffs(irq->mask) - 1;
/* some cards think they are level. force them to edge */
if (irq->flags & 0x0c)
irq->flags = 0x01;
if (!LEGAL_IRQ(irqnum))
continue;
if (irqnum < 2)
continue;
break;
}
wsc->sc_ih = pnpbus_intr_establish(i, IPL_NET, dp8390_intr, sc,
&pna->pna_res);
if (wsc->sc_ih == NULL)
aprint_error("%s: can't establish interrupt\n",
device_xname(self));
}
static const char *
we_params(asict, asich, typep, memsizep, flagp, is790p)
bus_space_tag_t asict;
bus_space_handle_t asich;
u_int8_t *typep, *flagp;
bus_size_t *memsizep;
int *is790p;
{
const char *typestr;
bus_size_t memsize;
int is16bit, is790;
u_int8_t type;
memsize = 8192;
is16bit = is790 = 0;
type = bus_space_read_1(asict, asich, WE_CARD_ID);
switch (type) {
case WE_TYPE_WD8003S:
typestr = "WD8003S";
break;
case WE_TYPE_WD8003E:
typestr = "WD8003E";
break;
case WE_TYPE_WD8003EB:
typestr = "WD8003EB";
break;
case WE_TYPE_WD8003W:
typestr = "WD8003W";
break;
case WE_TYPE_WD8013EBT:
typestr = "WD8013EBT";
memsize = 16384;
is16bit = 1;
break;
case WE_TYPE_WD8013W:
typestr = "WD8013W";
memsize = 16384;
is16bit = 1;
break;
case WE_TYPE_WD8013EP: /* also WD8003EP */
if (bus_space_read_1(asict, asich, WE_ICR) & WE_ICR_16BIT) {
is16bit = 1;
memsize = 16384;
typestr = "WD8013EP";
} else
typestr = "WD8003EP";
break;
case WE_TYPE_WD8013WC:
typestr = "WD8013WC";
memsize = 16384;
is16bit = 1;
break;
case WE_TYPE_WD8013EBP:
typestr = "WD8013EBP";
memsize = 16384;
is16bit = 1;
break;
case WE_TYPE_WD8013EPC:
typestr = "WD8013EPC";
memsize = 16384;
is16bit = 1;
break;
case WE_TYPE_SMC8216C:
case WE_TYPE_SMC8216T:
{
u_int8_t hwr;
typestr = (type == WE_TYPE_SMC8216C) ?
"SMC8216/SMC8216C" : "SMC8216T";
hwr = bus_space_read_1(asict, asich, WE790_HWR);
bus_space_write_1(asict, asich, WE790_HWR,
hwr | WE790_HWR_SWH);
switch (bus_space_read_1(asict, asich, WE790_RAR) &
WE790_RAR_SZ64) {
case WE790_RAR_SZ64:
memsize = 65536;
break;
case WE790_RAR_SZ32:
memsize = 32768;
break;
case WE790_RAR_SZ16:
memsize = 16384;
break;
case WE790_RAR_SZ8:
/* 8216 has 16K shared mem -- 8416 has 8K */
typestr = (type == WE_TYPE_SMC8216C) ?
"SMC8416C/SMC8416BT" : "SMC8416T";
memsize = 8192;
break;
}
bus_space_write_1(asict, asich, WE790_HWR, hwr);
is16bit = 1;
is790 = 1;
break;
}
#ifdef TOSH_ETHER
case WE_TYPE_TOSHIBA1:
typestr = "Toshiba1";
memsize = 32768;
is16bit = 1;
break;
case WE_TYPE_TOSHIBA4:
typestr = "Toshiba4";
memsize = 32768;
is16bit = 1;
break;
#endif
default:
/* Not one we recognize. */
return (NULL);
}
/*
* Make some adjustments to initial values depending on what is
* found in the ICR.
*/
if (is16bit && (type != WE_TYPE_WD8013EBT) &&
#ifdef TOSH_ETHER
(type != WE_TYPE_TOSHIBA1 && type != WE_TYPE_TOSHIBA4) &&
#endif
(bus_space_read_1(asict, asich, WE_ICR) & WE_ICR_16BIT) == 0) {
is16bit = 0;
memsize = 8192;
}
#ifdef WE_DEBUG
{
int i;
printf("we_params: type = 0x%x, typestr = %s, is16bit = %d, "
"memsize = %d\n", type, typestr, is16bit, memsize);
for (i = 0; i < 8; i++)
printf(" %d -> 0x%x\n", i,
bus_space_read_1(asict, asich, i));
}
#endif
if (typep != NULL)
*typep = type;
if (memsizep != NULL)
*memsizep = memsize;
if (flagp != NULL && is16bit)
*flagp |= WE_16BIT_ENABLE;
if (is790p != NULL)
*is790p = is790;
return (typestr);
}
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