1 /* $OpenBSD: if_le.c,v 1.20 2014/12/22 02:28:51 tedu Exp $ */
2 /* $NetBSD: if_le_isa.c,v 1.2 1996/05/12 23:52:56 mycroft Exp $ */
3
4 /*-
5 * Copyright (c) 1995 Charles M. Hannum. All rights reserved.
6 * Copyright (c) 1992, 1993
7 * The Regents of the University of California. All rights reserved.
8 *
9 * This code is derived from software contributed to Berkeley by
10 * Ralph Campbell and Rick Macklem.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 * @(#)if_le.c 8.2 (Berkeley) 11/16/93
37 */
38
39 #include "bpfilter.h"
40 #include "isadma.h"
41
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/mbuf.h>
45 #include <sys/syslog.h>
46 #include <sys/socket.h>
47 #include <sys/device.h>
48
49 #include <net/if.h>
50 #include <net/if_media.h>
51
52 #include <netinet/in.h>
53 #include <netinet/if_ether.h>
54
55 #include <machine/cpu.h>
56 #include <machine/intr.h>
57
58 #include <dev/isa/isareg.h>
59 #include <dev/isa/isavar.h>
60 #include <dev/isa/isadmavar.h>
61
62 #include <dev/ic/lancereg.h>
63 #include <dev/ic/lancevar.h>
64 #include <dev/ic/am7990reg.h>
65 #include <dev/ic/am7990var.h>
66
67 #include <dev/isa/if_levar.h>
68
69 void
le_isa_wrcsr(struct lance_softc * sc,uint16_t port,uint16_t val)70 le_isa_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val)
71 {
72 struct le_softc *lesc = (struct le_softc *)sc;
73 bus_space_tag_t iot = lesc->sc_iot;
74 bus_space_handle_t ioh = lesc->sc_ioh;
75
76 bus_space_write_2(iot, ioh, lesc->sc_rap, port);
77 bus_space_write_2(iot, ioh, lesc->sc_rdp, val);
78 }
79
80 uint16_t
le_isa_rdcsr(struct lance_softc * sc,uint16_t port)81 le_isa_rdcsr(struct lance_softc *sc, uint16_t port)
82 {
83 struct le_softc *lesc = (struct le_softc *)sc;
84 bus_space_tag_t iot = lesc->sc_iot;
85 bus_space_handle_t ioh = lesc->sc_ioh;
86 uint16_t val;
87
88 bus_space_write_2(iot, ioh, lesc->sc_rap, port);
89 val = bus_space_read_2(iot, ioh, lesc->sc_rdp);
90 return (val);
91 }
92
93
94 /*
95 * Controller interrupt.
96 */
97 int
le_isa_intredge(void * arg)98 le_isa_intredge(void *arg)
99 {
100
101 if (am7990_intr(arg) == 0)
102 return (0);
103 for (;;)
104 if (am7990_intr(arg) == 0)
105 return (1);
106 }
107