1 /* $OpenBSD: if_le.c,v 1.19 2013/09/24 20:11:00 miod 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 #ifdef INET 53 #include <netinet/in.h> 54 #include <netinet/if_ether.h> 55 #endif 56 57 #include <machine/cpu.h> 58 #include <machine/intr.h> 59 60 #include <dev/isa/isareg.h> 61 #include <dev/isa/isavar.h> 62 #include <dev/isa/isadmavar.h> 63 64 #include <dev/ic/lancereg.h> 65 #include <dev/ic/lancevar.h> 66 #include <dev/ic/am7990reg.h> 67 #include <dev/ic/am7990var.h> 68 69 #include <dev/isa/if_levar.h> 70 71 void 72 le_isa_wrcsr(struct lance_softc *sc, uint16_t port, uint16_t val) 73 { 74 struct le_softc *lesc = (struct le_softc *)sc; 75 bus_space_tag_t iot = lesc->sc_iot; 76 bus_space_handle_t ioh = lesc->sc_ioh; 77 78 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 79 bus_space_write_2(iot, ioh, lesc->sc_rdp, val); 80 } 81 82 uint16_t 83 le_isa_rdcsr(struct lance_softc *sc, uint16_t port) 84 { 85 struct le_softc *lesc = (struct le_softc *)sc; 86 bus_space_tag_t iot = lesc->sc_iot; 87 bus_space_handle_t ioh = lesc->sc_ioh; 88 uint16_t val; 89 90 bus_space_write_2(iot, ioh, lesc->sc_rap, port); 91 val = bus_space_read_2(iot, ioh, lesc->sc_rdp); 92 return (val); 93 } 94 95 96 /* 97 * Controller interrupt. 98 */ 99 int 100 le_isa_intredge(void *arg) 101 { 102 103 if (am7990_intr(arg) == 0) 104 return (0); 105 for (;;) 106 if (am7990_intr(arg) == 0) 107 return (1); 108 } 109