xref: /netbsd-src/sys/arch/evbsh3/t_sh7706lan/if_ne_mainbus.c (revision 1596dec6ce381404fa7577b4721a487da1a21549)
1 /*	$NetBSD: if_ne_mainbus.c,v 1.3 2012/12/01 03:16:46 tsutsui Exp $	*/
2 
3 /*-
4  * Copyright (c) 1997, 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_ne_mainbus.c,v 1.3 2012/12/01 03:16:46 tsutsui Exp $");
35 
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/mbuf.h>
39 #include <sys/socket.h>
40 #include <sys/ioctl.h>
41 #include <sys/errno.h>
42 #include <sys/syslog.h>
43 #include <sys/select.h>
44 #include <sys/device.h>
45 #include <sys/bus.h>
46 
47 #include <net/if.h>
48 #include <net/if_dl.h>
49 #include <net/if_ether.h>
50 #include <net/if_media.h>
51 
52 #include <sys/intr.h>
53 
54 #include <dev/ic/dp8390reg.h>
55 #include <dev/ic/dp8390var.h>
56 
57 #include <dev/ic/ne2000reg.h>
58 #include <dev/ic/ne2000var.h>
59 
60 #include <machine/autoconf.h>
61 
62 #include <sh3/exception.h>
63 
64 static int ne_mainbus_match(device_t, cfdata_t, void *);
65 static void ne_mainbus_attach(device_t, device_t, void *);
66 
67 struct ne_mainbus_softc {
68 	struct	ne2000_softc sc_ne2000;		/* real "ne2000" softc */
69 
70 	void	*sc_ih;				/* interrupt cookie */
71 };
72 
73 CFATTACH_DECL_NEW(ne_mainbus, sizeof(struct ne_mainbus_softc),
74     ne_mainbus_match, ne_mainbus_attach, NULL, NULL);
75 
76 extern struct _bus_space t_sh7706lan_bus_io;
77 
78 static int
ne_mainbus_match(device_t parent,cfdata_t cf,void * aux)79 ne_mainbus_match(device_t parent, cfdata_t cf, void *aux)
80 {
81 	struct mainbus_attach_args *maa = (struct mainbus_attach_args *)aux;
82 	bus_space_tag_t nict = &t_sh7706lan_bus_io;
83 	bus_space_handle_t nich;
84 	bus_space_tag_t asict;
85 	bus_space_handle_t asich;
86 	int rv = 0;
87 
88 	if (strcmp(maa->ma_name, "ne") != 0)
89 		return 0;
90 
91 	/* Map i/o space. */
92 	if (bus_space_map(nict, 0x10000300, NE2000_NPORTS, 0, &nich))
93 		return 0;
94 
95 	asict = nict;
96 	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
97 	    NE2000_ASIC_NPORTS, &asich))
98 		goto out;
99 
100 	/* Look for an NE2000-compatible card. */
101 	rv = ne2000_detect(nict, nich, asict, asich);
102 
103  out:
104 	bus_space_unmap(nict, nich, NE2000_NPORTS);
105 	return rv;
106 }
107 
108 static void
ne_mainbus_attach(device_t parent,device_t self,void * aux)109 ne_mainbus_attach(device_t parent, device_t self, void *aux)
110 {
111 	struct ne_mainbus_softc *msc = device_private(self);
112 	struct ne2000_softc *nsc = &msc->sc_ne2000;
113 	struct dp8390_softc *dsc = &nsc->sc_dp8390;
114 	bus_space_tag_t nict = &t_sh7706lan_bus_io;
115 	bus_space_handle_t nich;
116 	bus_space_tag_t asict = nict;
117 	bus_space_handle_t asich;
118 	const char *typestr;
119 	int netype;
120 
121 	dsc->sc_dev = self;
122 
123 	aprint_naive("\n");
124 	aprint_normal("\n");
125 
126 	/* Map i/o space. */
127 	if (bus_space_map(nict, 0x10000300, NE2000_NPORTS, 0, &nich)){
128 		aprint_error_dev(self, "can't map i/o space\n");
129 		return;
130 	}
131 
132 	if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET,
133 	    NE2000_ASIC_NPORTS, &asich)) {
134 		aprint_error_dev(self, "can't subregion i/o space\n");
135 		bus_space_unmap(nict, nich, NE2000_NPORTS);
136 		return;
137 	}
138 
139 	dsc->sc_regt = nict;
140 	dsc->sc_regh = nich;
141 
142 	nsc->sc_asict = asict;
143 	nsc->sc_asich = asich;
144 
145 	/*
146 	 * Detect it again, so we can print some information about the
147 	 * interface.
148 	 */
149 	netype = ne2000_detect(nict, nich, asict, asich);
150 	switch (netype) {
151 	case NE2000_TYPE_NE1000:
152 		typestr = "NE1000";
153 		break;
154 
155 	case NE2000_TYPE_NE2000:
156 		typestr = "NE2000";
157 		break;
158 
159 	case NE2000_TYPE_RTL8019:
160 		typestr = "NE2000 (RTL8019)";
161  		break;
162 
163 	default:
164 		aprint_error_dev(self, "where did the card go?!\n");
165 		bus_space_unmap(nict, nich, NE2000_NPORTS);
166 		return;
167 	}
168 
169 	aprint_normal_dev(self, "%s Ethernet\n", typestr);
170 
171 	/* This interface is always enabled. */
172 	dsc->sc_enabled = 1;
173 
174 	/* force 8bit */
175 	nsc->sc_quirk |= NE2000_QUIRK_8BIT;
176 
177 	/*
178 	 * Do generic NE2000 attach.  This will read the station address
179 	 * from the EEPROM.
180 	 */
181 	ne2000_attach(nsc, NULL);
182 
183 	/* Establish the interrupt handler. */
184 	msc->sc_ih = intc_intr_establish(SH7709_INTEVT2_IRQ2, IST_LEVEL,
185 	    IPL_NET, dp8390_intr, dsc);
186 	if (msc->sc_ih == NULL)
187 		aprint_error_dev(self,
188 		    "couldn't establish interrupt handler\n");
189 }
190