if_le.c revision 1.26
1 /* $NetBSD: if_le.c,v 1.26 1996/01/02 21:56:21 thorpej 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((int)); /* 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 lewrcsr(sc, port, val) 94 struct le_softc *sc; 95 u_int16_t port, val; 96 { 97 register struct lereg0 *ler0 = sc->sc_r0; 98 register struct lereg1 *ler1 = sc->sc_r1; 99 100 do { 101 ler1->ler1_rap = port; 102 } while ((ler0->ler0_status & LE_ACK) == 0); 103 do { 104 ler1->ler1_rdp = val; 105 } while ((ler0->ler0_status & LE_ACK) == 0); 106 } 107 108 integrate u_int16_t 109 lerdcsr(sc, port) 110 struct le_softc *sc; 111 u_int16_t port; 112 { 113 register struct lereg0 *ler0 = sc->sc_r0; 114 register struct lereg1 *ler1 = sc->sc_r1; 115 u_int16_t val; 116 117 do { 118 ler1->ler1_rap = port; 119 } while ((ler0->ler0_status & LE_ACK) == 0); 120 do { 121 val = ler1->ler1_rdp; 122 } while ((ler0->ler0_status & LE_ACK) == 0); 123 return (val); 124 } 125 126 int 127 lematch(hd) 128 struct hp_device *hd; 129 { 130 register struct lereg0 *ler0; 131 struct le_softc *sc = LE_SOFTC(hd->hp_unit); 132 133 ler0 = (struct lereg0 *)(lestd[0] + (int)hd->hp_addr); 134 if (ler0->ler0_id != LEID) 135 return (0); 136 137 hd->hp_ipl = LE_IPL(ler0->ler0_status); 138 sc->sc_hd = hd; 139 140 return (1); 141 } 142 143 /* 144 * Interface exists: make available by filling in network interface 145 * record. System will initialize the interface when it is ready 146 * to accept packets. 147 */ 148 void 149 leattach(hd) 150 struct hp_device *hd; 151 { 152 register struct lereg0 *ler0; 153 struct le_softc *sc = LE_SOFTC(hd->hp_unit); 154 char *cp; 155 int i; 156 157 ler0 = sc->sc_r0 = (struct lereg0 *)(lestd[0] + (int)hd->hp_addr); 158 ler0->ler0_id = 0xFF; 159 DELAY(100); 160 161 /* XXXX kluge for now */ 162 sc->sc_dev.dv_unit = hd->hp_unit; 163 sprintf(sc->sc_dev.dv_xname, "%s%d", ledriver.d_name, hd->hp_unit); 164 165 sc->sc_r1 = (struct lereg1 *)(lestd[1] + (int)hd->hp_addr); 166 sc->sc_mem = (void *)(lestd[2] + (int)hd->hp_addr); 167 sc->sc_conf3 = LE_C3_BSWP; 168 sc->sc_addr = 0; 169 sc->sc_memsize = 16384; 170 171 /* 172 * Read the ethernet address off the board, one nibble at a time. 173 */ 174 cp = (char *)(lestd[3] + (int)hd->hp_addr); 175 for (i = 0; i < sizeof(sc->sc_arpcom.ac_enaddr); i++) { 176 sc->sc_arpcom.ac_enaddr[i] = (*++cp & 0xF) << 4; 177 cp++; 178 sc->sc_arpcom.ac_enaddr[i] |= *++cp & 0xF; 179 cp++; 180 } 181 182 sc->sc_copytodesc = copytobuf_contig; 183 sc->sc_copyfromdesc = copyfrombuf_contig; 184 sc->sc_copytobuf = copytobuf_contig; 185 sc->sc_copyfrombuf = copyfrombuf_contig; 186 sc->sc_zerobuf = zerobuf_contig; 187 188 sc->sc_arpcom.ac_if.if_name = ledriver.d_name; 189 leconfig(sc); 190 191 sc->sc_isr.isr_intr = hp300_leintr; 192 sc->sc_isr.isr_arg = hd->hp_unit; 193 sc->sc_isr.isr_ipl = hd->hp_ipl; 194 isrlink(&sc->sc_isr); 195 ler0->ler0_status = LE_IE; 196 } 197 198 static int 199 hp300_leintr(unit) 200 int unit; 201 { 202 struct le_softc *sc = LE_SOFTC(unit); 203 u_int16_t isr; 204 205 #ifdef USELEDS 206 isr = lerdcsr(sc, LE_CSR0); 207 208 if ((isr & LE_C0_INTR) == 0) 209 return (0); 210 211 if (isr & LE_C0_RINT) 212 if (inledcontrol == 0) 213 ledcontrol(0, 0, LED_LANRCV); 214 215 if (isr & LE_C0_TINT) 216 if (inledcontrol == 0) 217 ledcontrol(0, 0, LED_LANXMT); 218 #endif /* USELEDS */ 219 220 return (leintr(sc)); 221 } 222 223 #include <dev/ic/am7990.c> 224
Indexes created Wed Sep 24 05:09:52 GMT 2025