1/*	$NetBSD: if_cs_ofisa.c,v 1.24 2009/09/22 16:44:08 tsutsui 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 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33#include <sys/cdefs.h>
34__KERNEL_RCSID(0, "$NetBSD: if_cs_ofisa.c,v 1.24 2009/09/22 16:44:08 tsutsui Exp $");
35
36#include <sys/param.h>
37#include <sys/systm.h>
38#include <sys/socket.h>
39#include <sys/device.h>
40#include <sys/malloc.h>
41
42#include <sys/rnd.h>
43
44#include <net/if.h>
45#include <net/if_ether.h>
46#include <net/if_media.h>
47#ifdef INET
48#include <netinet/in.h>
49#include <netinet/if_inarp.h>
50#endif
51
52#include <sys/bus.h>
53#include <sys/intr.h>
54
55#include <dev/ofw/openfirm.h>
56#include <dev/isa/isavar.h>
57#include <dev/ofisa/ofisavar.h>
58
59#include <dev/ic/cs89x0reg.h>
60#include <dev/ic/cs89x0var.h>
61#include <dev/isa/cs89x0isavar.h>
62
63static int	cs_ofisa_match(device_t, cfdata_t, void *);
64static void	cs_ofisa_attach(device_t, device_t, void *);
65
66CFATTACH_DECL_NEW(cs_ofisa, sizeof(struct cs_softc_isa),
67    cs_ofisa_match, cs_ofisa_attach, NULL, NULL);
68
69int
70cs_ofisa_match(device_t parent, cfdata_t cf, void *aux)
71{
72	struct ofisa_attach_args *aa = aux;
73	static const char *const compatible_strings[] = {
74		"CRUS,CS8900",
75		/* XXX CS8920, CS8920M? */
76		/* XXX PNP names? */
77		NULL,
78	};
79	int rv = 0;
80
81	if (of_compatible(aa->oba.oba_phandle, compatible_strings) != -1)
82		rv = 5;
83#ifdef _CS_OFISA_MD_MATCH
84	if (rv == 0)
85		rv = cs_ofisa_md_match(parent, cf, aux);
86#endif
87	return (rv);
88}
89
90void
91cs_ofisa_attach(device_t parent, device_t self, void *aux)
92{
93	struct cs_softc_isa *isc = device_private(self);
94	struct cs_softc *sc = &isc->sc_cs;
95	struct ofisa_attach_args *aa = aux;
96	struct ofisa_reg_desc reg[2];
97	struct ofisa_intr_desc intr;
98	struct ofisa_dma_desc dma;
99	int i, n, *media, nmedia, defmedia;
100	bus_addr_t io_addr, mem_addr;
101	char *model = NULL;
102	const char *message = NULL;
103	u_int8_t enaddr[6];
104
105	sc->sc_dev = self;
106	isc->sc_ic = aa->ic;
107	sc->sc_iot = aa->iot;
108	sc->sc_memt = aa->memt;
109
110	/*
111	 * We're living on an OFW.  We have to ask the OFW what our
112	 * registers and interrupts properties look like.
113	 *
114	 * We expect:
115	 *
116	 *	1 i/o register region
117	 *	0 or 1 memory region
118	 *	1 interrupt
119	 *	0 or 1 DMA channel
120	 */
121
122	io_addr = mem_addr = -1;
123
124	n = ofisa_reg_get(aa->oba.oba_phandle, reg, 2);
125#ifdef _CS_OFISA_MD_REG_FIXUP
126	n = cs_ofisa_md_reg_fixup(parent, self, aux, reg, 2, n);
127#endif
128	if (n < 1 || n > 2) {
129		printf(": error getting register data\n");
130		return;
131	}
132
133	for (i = 0; i < n; i++) {
134		if (reg[i].type == OFISA_REG_TYPE_IO) {
135			if (io_addr != (bus_addr_t) -1) {
136				printf(": multiple I/O regions\n");
137				return;
138			}
139			if (reg[i].len != CS8900_IOSIZE) {
140				printf(": weird register size (%lu, expected %d)\n",
141				    (unsigned long)reg[i].len, CS8900_IOSIZE);
142				return;
143			}
144			io_addr = reg[i].addr;
145		} else {
146			if (mem_addr != (bus_addr_t) -1) {
147				printf(": multiple memory regions\n");
148				return;
149			}
150			if (reg[i].len != CS8900_MEMSIZE) {
151				printf(": weird register size (%lu, expected %d)\n",
152				    (unsigned long)reg[i].len, CS8900_MEMSIZE);
153				return;
154			}
155			mem_addr = reg[i].addr;
156		}
157	}
158
159	n = ofisa_intr_get(aa->oba.oba_phandle, &intr, 1);
160#ifdef _CS_OFISA_MD_INTR_FIXUP
161	n = cs_ofisa_md_intr_fixup(parent, self, aux, &intr, 1, n);
162#endif
163	if (n != 1) {
164		printf(": error getting interrupt data\n");
165		return;
166	}
167	sc->sc_irq = intr.irq;
168
169	if (CS8900_IRQ_ISVALID(sc->sc_irq) == 0) {
170		printf(": invalid IRQ %d\n", sc->sc_irq);
171		return;
172	}
173
174	isc->sc_drq = -1;
175	n = ofisa_dma_get(aa->oba.oba_phandle, &dma, 1);
176#ifdef _CS_OFISA_MD_DMA_FIXUP
177	n = cs_ofisa_md_dma_fixup(parent, self, aux, &dma, 1, n);
178#endif
179	if (n == 1)
180		isc->sc_drq = dma.drq;
181
182	if (io_addr == (bus_addr_t) -1) {
183		printf(": no I/O space\n");
184		return;
185	}
186	if (bus_space_map(sc->sc_iot, io_addr, CS8900_IOSIZE, 0,
187	    &sc->sc_ioh)) {
188		printf(": unable to map register space\n");
189		return;
190	}
191
192	if (mem_addr != (bus_addr_t) -1) {
193		if (bus_space_map(sc->sc_memt, mem_addr, CS8900_MEMSIZE, 0,
194		    &sc->sc_memh)) {
195			message = "unable to map memory space";
196		} else {
197			sc->sc_cfgflags |= CFGFLG_MEM_MODE;
198			sc->sc_pktpgaddr = mem_addr;
199		}
200	}
201
202	/* Dig MAC address out of the firmware. */
203	if (OF_getprop(aa->oba.oba_phandle, "mac-address", enaddr,
204	    sizeof(enaddr)) < 0) {
205		printf(": unable to get Ethernet address\n");
206		return;
207	}
208
209	/* Dig media out of the firmware. */
210	media = of_network_decode_media(aa->oba.oba_phandle, &nmedia,
211	    &defmedia);
212#ifdef _CS_OFISA_MD_MEDIA_FIXUP
213	media = cs_ofisa_md_media_fixup(parent, self, aux, media, &nmedia,
214	    &defmedia);
215#endif
216	if (media == NULL) {
217		printf(": unable to get media information\n");
218		return;
219	}
220
221	n = OF_getproplen(aa->oba.oba_phandle, "model");
222	if (n > 0) {
223		model = alloca(n);
224		if (OF_getprop(aa->oba.oba_phandle, "model", model, n) != n)
225			model = NULL;	/* Safe; alloca is on-stack */
226	}
227	if (model != NULL)
228		printf(": %s\n", model);
229	else
230		printf("\n");
231
232	if (message != NULL)
233		printf("%s: %s\n", device_xname(self), message);
234
235	if (defmedia == -1) {
236		aprint_error_dev(self, "unable to get default media\n");
237		defmedia = media[0];	/* XXX What to do? */
238	}
239
240	sc->sc_ih = isa_intr_establish(isc->sc_ic, sc->sc_irq, intr.share,
241	    IPL_NET, cs_intr, sc);
242	if (sc->sc_ih == NULL) {
243		aprint_error_dev(self, "unable to establish interrupt\n");
244		return;
245	}
246
247#ifdef _CS_OFISA_MD_CFGFLAGS_FIXUP
248	sc->sc_cfgflags |= cs_ofisa_md_cfgflags_fixup(parent, self, aux);
249#endif
250
251	sc->sc_dma_chipinit = cs_isa_dma_chipinit;
252	sc->sc_dma_attach = cs_isa_dma_attach;
253	sc->sc_dma_process_rx = cs_process_rx_dma;
254
255	cs_attach(sc, enaddr, media, nmedia, defmedia);
256
257	/* This is malloc'd. */
258	free(media, M_DEVBUF);
259}
260