if_le.c revision 1.29
1 /* $NetBSD: if_le.c,v 1.29 1996/04/22 02:30:45 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1995 Charles M. Hannum. All rights reserved. 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * Ralph Campbell and Rick Macklem. 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 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the University of 22 * California, Berkeley and its contributors. 23 * 4. Neither the name of the University nor the names of its contributors 24 * may be used to endorse or promote products derived from this software 25 * without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 31 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 40 */ 41 42 #include "bpfilter.h" 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/mbuf.h> 47 #include <sys/syslog.h> 48 #include <sys/socket.h> 49 #include <sys/device.h> 50 51 #include <net/if.h> 52 53 #ifdef INET 54 #include <netinet/in.h> 55 #include <netinet/if_ether.h> 56 #endif 57 58 #include <machine/cpu.h> 59 #include <machine/mtpr.h> 60 61 #include <hp300/hp300/isr.h> 62 63 #ifdef USELEDS 64 #include <hp300/hp300/led.h> 65 #endif 66 67 #include <hp300/dev/device.h> 68 #include <hp300/dev/if_lereg.h> 69 #include <hp300/dev/if_levar.h> 70 #include <dev/ic/am7990reg.h> 71 #define LE_NEED_BUF_CONTIG 72 #include <dev/ic/am7990var.h> 73 74 #include "le.h" 75 struct le_softc le_softc[NLE]; 76 77 #define LE_SOFTC(unit) &le_softc[unit] 78 #define LE_DELAY(x) DELAY(x) 79 80 int lematch __P((struct hp_device *)); 81 void leattach __P((struct hp_device *)); 82 int leintr __P((void *)); 83 static int hp300_leintr __P((void *)); /* machine-dependent wrapper */ 84 85 struct driver ledriver = { 86 lematch, leattach, "le", 87 }; 88 89 /* offsets for: ID, REGS, MEM, NVRAM */ 90 int lestd[] = { 0, 0x4000, 0x8000, 0xC008 }; 91 92 integrate void 93 lehwinit(sc) 94 struct le_softc *sc; 95 { 96 } 97 98 integrate void 99 lewrcsr(sc, port, val) 100 struct le_softc *sc; 101 u_int16_t port, val; 102 { 103 register struct lereg0 *ler0 = sc->sc_r0; 104 register struct lereg1 *ler1 = sc->sc_r1; 105 106 do { 107 ler1->ler1_rap = port; 108 } while ((ler0->ler0_status & LE_ACK) == 0); 109 do { 110 ler1->ler1_rdp = val; 111 } while ((ler0->ler0_status & LE_ACK) == 0); 112 } 113 114 integrate u_int16_t 115 lerdcsr(sc, port) 116 struct le_softc *sc; 117 u_int16_t port; 118 { 119 register struct lereg0 *ler0 = sc->sc_r0; 120 register struct lereg1 *ler1 = sc->sc_r1; 121 u_int16_t val; 122 123 do { 124 ler1->ler1_rap = port; 125 } while ((ler0->ler0_status & LE_ACK) == 0); 126 do { 127 val = ler1->ler1_rdp; 128 } while ((ler0->ler0_status & LE_ACK) == 0); 129 return (val); 130 } 131 132 int 133 lematch(hd) 134 struct hp_device *hd; 135 { 136 register struct lereg0 *ler0; 137 struct le_softc *sc = LE_SOFTC(hd->hp_unit); 138 139 ler0 = (struct lereg0 *)(lestd[0] + (int)hd->hp_addr); 140 if (ler0->ler0_id != LEID) 141 return (0); 142 143 hd->hp_ipl = LE_IPL(ler0->ler0_status); 144 sc->sc_hd = hd; 145 146 return (1); 147 } 148 149 /* 150 * Interface exists: make available by filling in network interface 151 * record. System will initialize the interface when it is ready 152 * to accept packets. 153 */ 154 void 155 leattach(hd) 156 struct hp_device *hd; 157 { 158 register struct lereg0 *ler0; 159 struct le_softc *sc = LE_SOFTC(hd->hp_unit); 160 char *cp; 161 int i; 162 163 ler0 = sc->sc_r0 = (struct lereg0 *)(lestd[0] + (int)hd->hp_addr); 164 ler0->ler0_id = 0xFF; 165 DELAY(100); 166 167 /* XXXX kluge for now */ 168 sc->sc_dev.dv_unit = hd->hp_unit; 169 sprintf(sc->sc_dev.dv_xname, "%s%d", ledriver.d_name, hd->hp_unit); 170 171 sc->sc_r1 = (struct lereg1 *)(lestd[1] + (int)hd->hp_addr); 172 sc->sc_mem = (void *)(lestd[2] + (int)hd->hp_addr); 173 sc->sc_conf3 = LE_C3_BSWP; 174 sc->sc_addr = 0; 175 sc->sc_memsize = 16384; 176 177 /* 178 * Read the ethernet address off the board, one nibble at a time. 179 */ 180 cp = (char *)(lestd[3] + (int)hd->hp_addr); 181 for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++) { 182 sc->sc_arpcom.ac_enaddr[i] = (*++cp & 0xF) << 4; 183 cp++; 184 sc->sc_arpcom.ac_enaddr[i] |= *++cp & 0xF; 185 cp++; 186 } 187 188 sc->sc_copytodesc = am7990_copytobuf_contig; 189 sc->sc_copyfromdesc = am7990_copyfrombuf_contig; 190 sc->sc_copytobuf = am7990_copytobuf_contig; 191 sc->sc_copyfrombuf = am7990_copyfrombuf_contig; 192 sc->sc_zerobuf = am7990_zerobuf_contig; 193 194 sc->sc_arpcom.ac_if.if_name = ledriver.d_name; 195 leconfig(sc); 196 197 /* Establish the interrupt handler. */ 198 isrlink(hp300_leintr, sc, hd->hp_ipl, ISRPRI_NET); 199 ler0->ler0_status = LE_IE; 200 } 201 202 static int 203 hp300_leintr(arg) 204 void *arg; 205 { 206 struct le_softc *sc = arg; 207 u_int16_t isr; 208 209 #ifdef USELEDS 210 isr = lerdcsr(sc, LE_CSR0); 211 212 if ((isr & LE_C0_INTR) == 0) 213 return (0); 214 215 if (isr & LE_C0_RINT) 216 if (inledcontrol == 0) 217 ledcontrol(0, 0, LED_LANRCV); 218 219 if (isr & LE_C0_TINT) 220 if (inledcontrol == 0) 221 ledcontrol(0, 0, LED_LANXMT); 222 #endif /* USELEDS */ 223 224 return (leintr(sc)); 225 } 226 227 #include <dev/ic/am7990.c> 228
Indexes created Fri Sep 26 20:09:58 GMT 2025