1 /* $OpenBSD: if_le.c,v 1.14 1998/09/16 22:41:20 jason 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. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 41 */ 42 43 #include "bpfilter.h" 44 #include "isadma.h" 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/mbuf.h> 49 #include <sys/syslog.h> 50 #include <sys/socket.h> 51 #include <sys/device.h> 52 53 #include <net/if.h> 54 #include <net/if_media.h> 55 56 #ifdef INET 57 #include <netinet/in.h> 58 #include <netinet/if_ether.h> 59 #endif 60 61 #include <vm/vm.h> 62 63 #include <machine/cpu.h> 64 #include <machine/intr.h> 65 66 #include <dev/isa/isareg.h> 67 #include <dev/isa/isavar.h> 68 #include <dev/isa/isadmavar.h> 69 70 #include <dev/ic/am7990reg.h> 71 #include <dev/ic/am7990var.h> 72 73 #include <dev/isa/if_levar.h> 74 75 void 76 le_isa_wrcsr(sc, port, val) 77 struct am7990_softc *sc; 78 u_int16_t port, val; 79 { 80 struct le_softc *lesc = (struct le_softc *)sc; 81 bus_space_tag_t iot = lesc->sc_iot; 82 bus_space_handle_t ioh = lesc->sc_ioh; 83 84 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 85 bus_space_write_2(iot, ioh, lesc->sc_rdp, val); 86 } 87 88 u_int16_t 89 le_isa_rdcsr(sc, port) 90 struct am7990_softc *sc; 91 u_int16_t port; 92 { 93 struct le_softc *lesc = (struct le_softc *)sc; 94 bus_space_tag_t iot = lesc->sc_iot; 95 bus_space_handle_t ioh = lesc->sc_ioh; 96 u_int16_t val; 97 98 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 99 val = bus_space_read_2(iot, ioh, lesc->sc_rdp); 100 return (val); 101 } 102 103 104 /* 105 * Controller interrupt. 106 */ 107 int 108 le_isa_intredge(arg) 109 void *arg; 110 { 111 112 if (am7990_intr(arg) == 0) 113 return (0); 114 for (;;) 115 if (am7990_intr(arg) == 0) 116 return (1); 117 } 118