if_ea.c revision 1.18 
1/* $NetBSD: if_ea.c,v 1.18 2023/08/03 08:35:14 mrg Exp $ */
2
3/*
4 * Copyright (c) 2000, 2001 Ben Harris
5 * Copyright (c) 1995 Mark Brinicombe
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. All advertising materials mentioning features or use of this software
17 *    must display the following acknowledgement:
18 *	This product includes software developed by Mark Brinicombe.
19 * 4. The name of the company nor the name of the author may be used to
20 *    endorse or promote products derived from this software without specific
21 *    prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26 * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35/*
36 * if_ea.c - Ether3 device driver
37 */
38
39#include <sys/cdefs.h>
40__KERNEL_RCSID(0, "$NetBSD: if_ea.c,v 1.18 2023/08/03 08:35:14 mrg Exp $");
41
42#include <sys/param.h>
43
44#include <sys/device.h>
45#include <sys/socket.h>
46#include <sys/systm.h>
47
48#include <sys/bus.h>
49#include <sys/intr.h>
50
51#include <net/if.h>
52#include <net/if_ether.h>
53
54#include <dev/podulebus/podulebus.h>
55#include <dev/podulebus/podules.h>
56
57#include <dev/podulebus/if_eareg.h>
58#include <dev/ic/seeq8005var.h>
59
60/*
61 * per-line info and status
62 */
63
64struct ea_softc {
65	struct seeq8005_softc	sc_8005;
66	void	*sc_ih;
67	struct evcnt sc_intrcnt;
68};
69
70/*
71 * prototypes
72 */
73
74int eaprobe(device_t, cfdata_t, void *);
75void eaattach(device_t, device_t, void *);
76
77/* driver structure for autoconf */
78
79CFATTACH_DECL_NEW(ea, sizeof(struct ea_softc),
80    eaprobe, eaattach, NULL, NULL);
81
82/*
83 * Probe routine.
84 */
85
86/*
87 * Probe for the ether3 podule.
88 */
89
90int
91eaprobe(device_t parent, cfdata_t cf, void *aux)
92{
93	struct podulebus_attach_args *pa = aux;
94
95	return pa->pa_product == PODULE_ETHER3;
96}
97
98
99/*
100 * Attach podule.
101 */
102
103void
104eaattach(device_t parent, device_t self, void *aux)
105{
106	struct ea_softc *sc = device_private(self);
107	struct podulebus_attach_args *pa = aux;
108	u_int8_t myaddr[ETHER_ADDR_LEN];
109	char *ptr;
110	int i;
111
112	sc->sc_8005.sc_dev = self;
113
114/*	dprintf(("Attaching %s...\n", device_xname(self)));*/
115
116	/* Set the address of the controller for easy access */
117	podulebus_shift_tag(pa->pa_mod_t, EA_8005_SHIFT, &sc->sc_8005.sc_iot);
118	bus_space_map(sc->sc_8005.sc_iot, pa->pa_mod_base, /* XXX */ 0, 0,
119	    &sc->sc_8005.sc_ioh);
120
121	/* Get the Ethernet address from the device description string. */
122	if (pa->pa_descr[0] == '\0') {
123		printf(": No description for Ethernet address\n");
124		return;
125	}
126	ptr = strchr(pa->pa_descr, '(');
127	if (ptr == NULL) {
128		printf(": Ethernet address not found in description\n");
129		return;
130	}
131	ptr++;
132	for (i = 0; i < ETHER_ADDR_LEN; i++) {
133		myaddr[i] = strtoul(ptr, &ptr, 16);
134		if (*ptr++ != (i == ETHER_ADDR_LEN - 1 ? ')' : ':')) {
135			printf(": Bad Ethernet address found in "
136			       "description\n");
137			return;
138		}
139	}
140
141	printf(":");
142	seeq8005_attach(&sc->sc_8005, myaddr, NULL, 0, 0);
143
144	/* Claim a podule interrupt */
145
146	evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL,
147	    device_xname(self), "intr");
148	sc->sc_ih = podulebus_irq_establish(pa->pa_ih, IPL_NET, seeq8005intr,
149	    sc, &sc->sc_intrcnt);
150}
151
152/* End of if_ea.c */
153