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/* $OpenBSD: if_tribm_isa.c,v 1.1 1999/12/27 21:51:35 fgsch Exp $ */
/* $NetBSD: if_tribm_isa.c,v 1.2 1999/03/22 23:01:37 bad Exp $ */
/*
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Onno van der Linden.
*
* 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.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/socket.h>
#include <sys/device.h>
#include <net/if.h>
#include <net/if_media.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <machine/bus.h>
#include <dev/isa/isavar.h>
#include <dev/ic/tropicreg.h>
#include <dev/ic/tropicvar.h>
int tribm_isa_probe __P((struct device *, void *, void *));
int tr_isa_map_io __P((struct isa_attach_args *, bus_space_handle_t *,
bus_space_handle_t *));
void tr_isa_unmap_io __P((struct isa_attach_args *, bus_space_handle_t,
bus_space_handle_t));
int
tribm_isa_probe(parent, match, aux)
struct device *parent;
void *match, *aux;
{
struct isa_attach_args *ia = aux;
static int irq_f[4] = { 9, 3, 6, 7 };
static int irq_e[4] = { 9, 3, 10, 11 };
bus_space_tag_t piot = ia->ia_iot;
bus_space_tag_t memt = ia->ia_memt;
bus_space_handle_t pioh, mmioh;
int i, irq;
u_int8_t s;
#ifdef notyet
/* XXX Try both 0xa20 and 0xa24 and store that info like 3com */
if (ia->ia_iobase == IOBASEUNK)
ia->ia_iobase = 0xa20;
#else
if (ia->ia_iobase == IOBASEUNK)
return 0;
#endif
ia->ia_iosize = 4;
ia->ia_aux = NULL;
if (tr_isa_map_io(ia, &pioh, &mmioh))
return 0;
/*
* F = Token-Ring Network PC Adapter
* Token-Ring Network PC Adapter II
* Token-Ring Network Adapter/A
* E = Token-Ring Network 16/4 Adapter/A (long card)
* Token-Ring Network 16/4 Adapter
* D = Token-Ring Network 16/4 Adapter/A (short card)
* 16/4 ISA-16 Adapter
* C = Auto 16/4 Token-Ring ISA Adapter
* Auto 16/4 Token-Ring MC Adapter
*/
/*
* XXX Both 0xD and 0xC types should be able to use 16-bit read and writes
*/
switch (bus_space_read_1(memt, mmioh, TR_TYP_OFFSET)) {
case 0xF:
case 0xE:
case 0xD:
if (ia->ia_maddr == MADDRUNK)
#ifdef notyet
ia->ia_maddr = TR_SRAM_DEFAULT;
#else
return 0;
#endif
break;
case 0xC:
i = bus_space_read_1(memt, mmioh, TR_ACA_OFFSET) << 12;
if (ia->ia_maddr == MADDRUNK)
ia->ia_maddr = i;
else if (ia->ia_maddr != i) {
printf(
"tribm_isa_probe: sram mismatch; kernel configured %x != board configured %x\n",
ia->ia_maddr, i);
tr_isa_unmap_io(ia, pioh, mmioh);
return 0;
}
break;
default:
printf("tribm_isa_probe: unknown type code %x\n",
bus_space_read_1(memt, mmioh, TR_TYP_OFFSET));
tr_isa_unmap_io(ia, pioh, mmioh);
return 0;
}
s = bus_space_read_1(piot, pioh, TR_SWITCH);
switch (bus_space_read_1(memt, mmioh, TR_IRQ_OFFSET)) {
case 0xF:
irq = irq_f[s & 3];
break;
case 0xE:
irq = irq_e[s & 3];
break;
default:
printf("tribm_isa_probe: Unknown IRQ code %x\n",
bus_space_read_1(memt, mmioh, TR_IRQ_OFFSET));
tr_isa_unmap_io(ia, pioh, mmioh);
return 0;
}
if (ia->ia_irq == IRQUNK)
ia->ia_irq = irq;
else if (ia->ia_irq != irq) {
printf(
"tribm_isa_probe: irq mismatch; kernel configured %d != board configured %d\n",
ia->ia_irq, irq);
tr_isa_unmap_io(ia, pioh, mmioh);
return 0;
}
/*
* XXX 0x0c == MSIZEMASK (MSIZEBITS)
*/
ia->ia_msize = 8192 <<
((bus_space_read_1(memt, mmioh, TR_ACA_OFFSET + 1) & 0x0c) >> 2);
tr_isa_unmap_io(ia, pioh, mmioh);
/* Check alignment of membase. */
if ((ia->ia_maddr & (ia->ia_msize-1)) != 0) {
printf("tribm_isa_probe: SRAM unaligned 0x%04x/%d\n",
ia->ia_maddr, ia->ia_msize);
return 0;
}
return 1;
}
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