if_cs_ofisa.c revision 1.13 
1/*	$NetBSD: if_cs_ofisa.c,v 1.13 2005/02/04 02:10:44 perry Exp $	*/
2
3/*-
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
9 * NASA Ames Research Center.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 *    must display the following acknowledgement:
21 *	This product includes software developed by the NetBSD
22 *	Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 *    contributors may be used to endorse or promote products derived
25 *    from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40#include <sys/cdefs.h>
41__KERNEL_RCSID(0, "$NetBSD: if_cs_ofisa.c,v 1.13 2005/02/04 02:10:44 perry Exp $");
42
43#include <sys/param.h>
44#include <sys/systm.h>
45#include <sys/socket.h>
46#include <sys/device.h>
47#include <sys/malloc.h>
48
49#include "rnd.h"
50#if NRND > 0
51#include <sys/rnd.h>
52#endif
53
54#include <net/if.h>
55#include <net/if_ether.h>
56#include <net/if_media.h>
57#ifdef INET
58#include <netinet/in.h>
59#include <netinet/if_inarp.h>
60#endif
61
62#include <machine/bus.h>
63#include <machine/intr.h>
64
65#include <dev/ofw/openfirm.h>
66#include <dev/isa/isavar.h>
67#include <dev/ofisa/ofisavar.h>
68
69#include <dev/ic/cs89x0reg.h>
70#include <dev/ic/cs89x0var.h>
71#include <dev/isa/cs89x0isavar.h>
72
73int	cs_ofisa_match(struct device *, struct cfdata *, void *);
74void	cs_ofisa_attach(struct device *, struct device *, void *);
75
76CFATTACH_DECL(cs_ofisa, sizeof(struct cs_softc_isa),
77    cs_ofisa_match, cs_ofisa_attach, NULL, NULL);
78
79int
80cs_ofisa_match(parent, cf, aux)
81	struct device *parent;
82	struct cfdata *cf;
83	void *aux;
84{
85	struct ofisa_attach_args *aa = aux;
86	static const char *const compatible_strings[] = {
87		"CRUS,CS8900",
88		/* XXX CS8920, CS8920M? */
89		/* XXX PNP names? */
90		NULL,
91	};
92	int rv = 0;
93
94	if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1)
95		rv = 5;
96#ifdef _CS_OFISA_MD_MATCH
97	if (rv == 0)
98		rv = cs_ofisa_md_match(parent, cf, aux);
99#endif
100	return (rv);
101}
102
103void
104cs_ofisa_attach(parent, self, aux)
105	struct device *parent, *self;
106	void *aux;
107{
108	struct cs_softc *sc = (struct cs_softc *) self;
109	struct cs_softc_isa *isc = (void *)sc;
110	struct ofisa_attach_args *aa = aux;
111	struct ofisa_reg_desc reg[2];
112	struct ofisa_intr_desc intr;
113	struct ofisa_dma_desc dma;
114	int i, n, *media, nmedia, defmedia;
115	bus_addr_t io_addr, mem_addr;
116	char *model = NULL;
117	const char *message = NULL;
118	u_int8_t enaddr[6];
119
120	isc->sc_ic = aa->ic;
121	sc->sc_iot = aa->iot;
122	sc->sc_memt = aa->memt;
123
124	/*
125	 * We're living on an OFW.  We have to ask the OFW what our
126	 * registers and interrupts properties look like.
127	 *
128	 * We expect:
129	 *
130	 *	1 i/o register region
131	 *	0 or 1 memory region
132	 *	1 interrupt
133	 *	0 or 1 DMA channel
134	 */
135
136	io_addr = mem_addr = -1;
137
138	n = ofisa_reg_get(aa->oba.oba_phandle, reg, 2);
139#ifdef _CS_OFISA_MD_REG_FIXUP
140	n = cs_ofisa_md_reg_fixup(parent, self, aux, reg, 2, n);
141#endif
142	if (n < 1 || n > 2) {
143		printf(": error getting register data\n");
144		return;
145	}
146
147	for (i = 0; i < n; i++) {
148		if (reg[i].type == OFISA_REG_TYPE_IO) {
149			if (io_addr != (bus_addr_t) -1) {
150				printf(": multiple I/O regions\n");
151				return;
152			}
153			if (reg[i].len != CS8900_IOSIZE) {
154				printf(": weird register size (%lu, expected %d)\n",
155				    (unsigned long)reg[i].len, CS8900_IOSIZE);
156				return;
157			}
158			io_addr = reg[i].addr;
159		} else {
160			if (mem_addr != (bus_addr_t) -1) {
161				printf(": multiple memory regions\n");
162				return;
163			}
164			if (reg[i].len != CS8900_MEMSIZE) {
165				printf(": weird register size (%lu, expected %d)\n",
166				    (unsigned long)reg[i].len, CS8900_MEMSIZE);
167				return;
168			}
169			mem_addr = reg[i].addr;
170		}
171	}
172
173	n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1);
174#ifdef _CS_OFISA_MD_INTR_FIXUP
175	n = cs_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n);
176#endif
177	if (n != 1) {
178		printf(": error getting interrupt data\n");
179		return;
180	}
181	sc->sc_irq = intr.irq;
182
183	if (CS8900_IRQ_ISVALID(sc->sc_irq) == 0) {
184		printf(": invalid IRQ %d\n", sc->sc_irq);
185		return;
186	}
187
188	isc->sc_drq = -1;
189	n = ofisa_dma_get(aa->oba.oba_phandle, &dma, 1);
190#ifdef _CS_OFISA_MD_DMA_FIXUP
191	n = cs_ofisa_md_dma_fixup(parent, self, aux, &dma, 1, n);
192#endif
193	if (n == 1)
194		isc->sc_drq = dma.drq;
195
196	if (io_addr == (bus_addr_t) -1) {
197		printf(": no I/O space\n");
198		return;
199	}
200	if (bus_space_map(sc->sc_iot, io_addr, CS8900_IOSIZE, 0,
201	    &sc->sc_ioh)) {
202		printf(": unable to map register space\n");
203		return;
204	}
205
206	if (mem_addr != (bus_addr_t) -1) {
207		if (bus_space_map(sc->sc_memt, mem_addr, CS8900_MEMSIZE, 0,
208		    &sc->sc_memh)) {
209			message = "unable to map memory space";
210		} else {
211			sc->sc_cfgflags |= CFGFLG_MEM_MODE;
212			sc->sc_pktpgaddr = mem_addr;
213		}
214	}
215
216	/* Dig MAC address out of the firmware. */
217	if (OF_getprop(aa->oba.oba_phandle, "mac-address", enaddr,
218	    sizeof(enaddr)) < 0) {
219		printf(": unable to get Ethernet address\n");
220		return;
221	}
222
223	/* Dig media out of the firmware. */
224	media = of_network_decode_media(aa->oba.oba_phandle, &nmedia,
225	    &defmedia);
226#ifdef _CS_OFISA_MD_MEDIA_FIXUP
227	media = cs_ofisa_md_media_fixup(parent, self, aux, media, &nmedia,
228	    &defmedia);
229#endif
230	if (media == NULL) {
231		printf(": unable to get media information\n");
232		return;
233	}
234
235	n = OF_getproplen(aa->oba.oba_phandle, "model");
236	if (n > 0) {
237		model = alloca(n);
238		if (OF_getprop(aa->oba.oba_phandle, "model", model, n) != n)
239			model = NULL;	/* Safe; alloca is on-stack */
240	}
241	if (model != NULL)
242		printf(": %s\n", model);
243	else
244		printf("\n");
245
246	if (message != NULL)
247		printf("%s: %s\n", sc->sc_dev.dv_xname, message);
248
249	if (defmedia == -1) {
250		printf("%s: unable to get default media\n",
251		    sc->sc_dev.dv_xname);
252		defmedia = media[0];	/* XXX What to do? */
253	}
254
255	sc->sc_ih = isa_intr_establish(isc->sc_ic, sc->sc_irq, intr.share,
256	    IPL_NET, cs_intr, sc);
257	if (sc->sc_ih == NULL) {
258		printf("%s: unable to establish interrupt\n",
259		    sc->sc_dev.dv_xname);
260		return;
261	}
262
263#ifdef _CS_OFISA_MD_CFGFLAGS_FIXUP
264	sc->sc_cfgflags |= cs_ofisa_md_cfgflags_fixup(parent, self, aux);
265#endif
266
267	sc->sc_dma_chipinit = cs_isa_dma_chipinit;
268	sc->sc_dma_attach = cs_isa_dma_attach;
269	sc->sc_dma_process_rx = cs_process_rx_dma;
270
271	cs_attach(sc, enaddr, media, nmedia, defmedia);
272
273	/* This is malloc'd. */
274	free(media, M_DEVBUF);
275}
276