1/*	$NetBSD: if_le_tc.c,v 1.23 2022/02/23 21:54:41 andvar Exp $	*/
2
3/*
4 * Copyright (c) 1996 Carnegie-Mellon University.
5 * All rights reserved.
6 *
7 * Author: Chris G. Demetriou
8 *
9 * Permission to use, copy, modify and distribute this software and
10 * its documentation is hereby granted, provided that both the copyright
11 * notice and this permission notice appear in all copies of the
12 * software, derivative works or modified versions, and any portions
13 * thereof, and that both notices appear in supporting documentation.
14 *
15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18 *
19 * Carnegie Mellon requests users of this software to return to
20 *
21 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
22 *  School of Computer Science
23 *  Carnegie Mellon University
24 *  Pittsburgh PA 15213-3890
25 *
26 * any improvements or extensions that they make and grant Carnegie the
27 * rights to redistribute these changes.
28 */
29
30/*
31 * LANCE on TURBOchannel.
32 */
33
34#include <sys/cdefs.h>
35__KERNEL_RCSID(0, "$NetBSD: if_le_tc.c,v 1.23 2022/02/23 21:54:41 andvar Exp $");
36
37#include "opt_inet.h"
38
39#include <sys/param.h>
40#include <sys/systm.h>
41#include <sys/mbuf.h>
42#include <sys/syslog.h>
43#include <sys/socket.h>
44#include <sys/device.h>
45
46#include <net/if.h>
47#include <net/if_ether.h>
48#include <net/if_media.h>
49
50#ifdef INET
51#include <netinet/in.h>
52#include <netinet/if_inarp.h>
53#endif
54
55#include <dev/ic/lancereg.h>
56#include <dev/ic/lancevar.h>
57#include <dev/ic/am7990reg.h>
58#include <dev/ic/am7990var.h>
59
60#include <dev/tc/if_levar.h>
61#include <dev/tc/tcvar.h>
62
63static int	le_tc_match(device_t, cfdata_t, void *);
64static void	le_tc_attach(device_t, device_t, void *);
65
66CFATTACH_DECL_NEW(le_tc, sizeof(struct le_softc),
67    le_tc_match, le_tc_attach, NULL, NULL);
68
69#define	LE_OFFSET_RAM		0x0
70#define	LE_OFFSET_LANCE		0x100000
71#define	LE_OFFSET_ROM		0x1c0000
72
73static int
74le_tc_match(device_t parent, cfdata_t cf, void *aux)
75{
76	struct tc_attach_args *d = aux;
77
78	if (strncmp("PMAD-AA ", d->ta_modname, TC_ROM_LLEN) != 0)
79		return (0);
80
81	return (1);
82}
83
84static void
85le_tc_attach(device_t parent, device_t self, void *aux)
86{
87	struct le_softc *lesc = device_private(self);
88	struct lance_softc *sc = &lesc->sc_am7990.lsc;
89	struct tc_attach_args *d = aux;
90
91	sc->sc_dev = self;
92
93	/*
94	 * It's on the TURBOchannel proper, or a kn02
95	 * baseboard implementation of a TC option card.
96	 */
97	lesc->sc_r1 = (struct lereg1 *)
98	    TC_DENSE_TO_SPARSE(TC_PHYS_TO_UNCACHED(d->ta_addr + LE_OFFSET_LANCE));
99	sc->sc_mem = (void *)(d->ta_addr + LE_OFFSET_RAM);
100
101	sc->sc_copytodesc = lance_copytobuf_contig;
102	sc->sc_copyfromdesc = lance_copyfrombuf_contig;
103	sc->sc_copytobuf = lance_copytobuf_contig;
104	sc->sc_copyfrombuf = lance_copyfrombuf_contig;
105	sc->sc_zerobuf = lance_zerobuf_contig;
106
107	/*
108	 * TC lance boards have onboard SRAM buffers.  DMA
109	 * between the onboard RAM and main memory is not possible,
110	 * so  DMA setup is not required.
111	 */
112
113	dec_le_common_attach(&lesc->sc_am7990,
114			     (uint8_t *)(d->ta_addr + LE_OFFSET_ROM + 2));
115
116	tc_intr_establish(parent, d->ta_cookie, TC_IPL_NET, am7990_intr, sc);
117}
118