1/*      $NetBSD: if_ze.c,v 1.16 2010/01/19 22:06:23 pooka Exp $ */
2/*
3 * Copyright (c) 1999 Ludd, University of Lule}, Sweden. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 *    must display the following acknowledgement:
15 *      This product includes software developed at Ludd, University of
16 *      Lule}, Sweden and its contributors.
17 * 4. The name of the author may not be used to endorse or promote products
18 *    derived from this software without specific prior written permission
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33__KERNEL_RCSID(0, "$NetBSD: if_ze.c,v 1.16 2010/01/19 22:06:23 pooka Exp $");
34
35#include "opt_cputype.h"
36
37#include <sys/param.h>
38#include <sys/systm.h>
39#include <sys/bus.h>
40#include <sys/cpu.h>
41#include <sys/device.h>
42
43#include <net/if.h>
44#include <net/if_ether.h>
45#include <net/if_dl.h>
46
47#include <netinet/in.h>
48#include <netinet/if_inarp.h>
49
50#include <machine/nexus.h>
51#include <machine/scb.h>
52#include <machine/sid.h>
53#include <machine/mainbus.h>
54
55#include <dev/ic/sgecreg.h>
56#include <dev/ic/sgecvar.h>
57
58#include "ioconf.h"
59
60/*
61 * Addresses.
62 */
63#define SGECADDR        0x20008000
64#define NISA_ROM        0x20084000
65#define NISA_ROM_VXT    0x200c4000
66#define	NISA_ROM_VSBUS	0x27800000
67#define	SGECVEC		0x108
68
69static int	ze_mainbus_match(device_t, cfdata_t, void *);
70static void	ze_mainbus_attach(device_t, device_t, void *);
71
72static const struct sgec_data {
73	uint32_t sd_boardtype;
74	bus_addr_t sd_addr;
75	bus_addr_t sd_rom;
76	uint16_t sd_intvec;
77	uint8_t sd_romshift;
78} sgec_data[] = {
79	{ VAX_BTYP_660, SGECADDR, NISA_ROM, SGECVEC, 24, },
80#if VXT2000 || VAXANY
81	{ VAX_BTYP_VXT, SGECADDR, NISA_ROM_VXT, 0x200, 0, },
82#endif
83	{ VAX_BTYP_670, SGECADDR, NISA_ROM, SGECVEC, 8, },
84	{ VAX_BTYP_680, SGECADDR, NISA_ROM, SGECVEC, 8, },
85	{ VAX_BTYP_681, SGECADDR, NISA_ROM, SGECVEC, 8, },
86	{ VAX_BTYP_48, SGECADDR, NISA_ROM_VSBUS, SGECVEC, 0, },
87	{ VAX_BTYP_49, SGECADDR, NISA_ROM_VSBUS, SGECVEC, 0, },
88	{ VAX_BTYP_53, SGECADDR, NISA_ROM, SGECVEC, 8, },
89};
90
91static const struct sgec_data *
92ze_find(void)
93{
94	size_t i;
95	const struct sgec_data *sd;
96	for (i = 0, sd = sgec_data; i < __arraycount(sgec_data); i++, sd++) {
97		if (vax_boardtype == sd->sd_boardtype)
98			return sd;
99	}
100
101	return NULL;
102}
103
104CFATTACH_DECL_NEW(ze_mainbus, sizeof(struct ze_softc),
105    ze_mainbus_match, ze_mainbus_attach, NULL, NULL);
106
107/*
108 * Check for present SGEC.
109 */
110int
111ze_mainbus_match(device_t parent, cfdata_t cf, void *aux)
112{
113	struct mainbus_attach_args * const ma = aux;
114
115	/*
116	 * Should some more intelligent checking be done???
117	 */
118	if (strcmp(ma->ma_type, "sgec"))
119		return 0;
120
121	return ze_find() != NULL;
122}
123
124/*
125 * Interface exists: make available by filling in network interface
126 * record.  System will initialize the interface when it is ready
127 * to accept packets.
128 */
129void
130ze_mainbus_attach(device_t parent, device_t self, void *aux)
131{
132	struct mainbus_attach_args * const ma = aux;
133	struct ze_softc * const sc = device_private(self);
134	const struct sgec_data * const sd = ze_find();
135	const uint32_t *ea;
136	size_t i;
137	int error;
138
139	sc->sc_dev = self;
140
141	/*
142	 * Map in SGEC registers.
143	 */
144	sc->sc_dmat = ma->ma_dmat;
145	sc->sc_iot = ma->ma_iot;
146	sc->sc_intvec = sd->sd_intvec;
147	error = bus_space_map(sc->sc_iot, sd->sd_addr, PAGE_SIZE, 0,
148	    &sc->sc_ioh);
149	if (error) {
150		aprint_error(": failed to map %#lx: %d\n", sd->sd_addr, error);
151		return;
152	}
153
154	/*
155	 * Map in, read and release ethernet rom address.
156	 */
157	ea = (uint32_t *)vax_map_physmem(sd->sd_rom, 1);
158	for (i = 0; i < ETHER_ADDR_LEN; i++)
159		sc->sc_enaddr[i] = (ea[i] >> sd->sd_romshift) & 0377;
160	vax_unmap_physmem((vaddr_t)ea, 1);
161
162	scb_vecalloc(sc->sc_intvec, (void (*)(void *)) sgec_intr, sc,
163	    SCB_ISTACK, &sc->sc_intrcnt);
164
165	sgec_attach(sc);
166}
167