if_ne_isa.c revision 1.25
1 /* $NetBSD: if_ne_isa.c,v 1.25 2008/03/12 14:31:11 cube Exp $ */ 2 3 /*- 4 * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 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 NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #include <sys/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: if_ne_isa.c,v 1.25 2008/03/12 14:31:11 cube Exp $"); 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/mbuf.h> 46 #include <sys/socket.h> 47 #include <sys/ioctl.h> 48 #include <sys/errno.h> 49 #include <sys/syslog.h> 50 #include <sys/select.h> 51 #include <sys/device.h> 52 53 #include <net/if.h> 54 #include <net/if_dl.h> 55 #include <net/if_ether.h> 56 #include <net/if_media.h> 57 58 #include <sys/intr.h> 59 #include <sys/bus.h> 60 61 #include <dev/ic/dp8390reg.h> 62 #include <dev/ic/dp8390var.h> 63 64 #include <dev/ic/ne2000reg.h> 65 #include <dev/ic/ne2000var.h> 66 67 #include <dev/ic/rtl80x9reg.h> 68 #include <dev/ic/rtl80x9var.h> 69 70 #include <dev/isa/isavar.h> 71 72 int ne_isa_match(device_t, cfdata_t, void *); 73 void ne_isa_attach(device_t, device_t, void *); 74 75 struct ne_isa_softc { 76 struct ne2000_softc sc_ne2000; /* real "ne2000" softc */ 77 78 /* ISA-specific goo. */ 79 void *sc_ih; /* interrupt cookie */ 80 }; 81 82 CFATTACH_DECL_NEW(ne_isa, sizeof(struct ne_isa_softc), 83 ne_isa_match, ne_isa_attach, NULL, NULL); 84 85 int 86 ne_isa_match(device_t parent, cfdata_t match, void *aux) 87 { 88 struct isa_attach_args *ia = aux; 89 bus_space_tag_t nict = ia->ia_iot; 90 bus_space_handle_t nich; 91 bus_space_tag_t asict; 92 bus_space_handle_t asich; 93 int rv = 0; 94 95 if (ia->ia_nio < 1) 96 return (0); 97 if (ia->ia_nirq < 1) 98 return (0); 99 100 if (ISA_DIRECT_CONFIG(ia)) 101 return (0); 102 103 /* Disallow wildcarded values. */ 104 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 105 return (0); 106 if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) 107 return (0); 108 109 /* Make sure this is a valid NE[12]000 i/o address. */ 110 if ((ia->ia_io[0].ir_addr & 0x1f) != 0) 111 return (0); 112 113 /* Map i/o space. */ 114 if (bus_space_map(nict, ia->ia_io[0].ir_addr, NE2000_NPORTS, 0, &nich)) 115 return (0); 116 117 asict = nict; 118 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET, 119 NE2000_ASIC_NPORTS, &asich)) 120 goto out; 121 122 /* Look for an NE2000-compatible card. */ 123 rv = ne2000_detect(nict, nich, asict, asich); 124 125 if (rv) { 126 ia->ia_nio = 1; 127 ia->ia_io[0].ir_size = NE2000_NPORTS; 128 129 ia->ia_nirq = 1; 130 131 ia->ia_niomem = 0; 132 ia->ia_ndrq = 0; 133 } 134 135 out: 136 bus_space_unmap(nict, nich, NE2000_NPORTS); 137 return (rv); 138 } 139 140 void 141 ne_isa_attach(device_t parent, device_t self, void *aux) 142 { 143 struct ne_isa_softc *isc = device_private(self); 144 struct ne2000_softc *nsc = &isc->sc_ne2000; 145 struct dp8390_softc *dsc = &nsc->sc_dp8390; 146 struct isa_attach_args *ia = aux; 147 bus_space_tag_t nict = ia->ia_iot; 148 bus_space_handle_t nich; 149 bus_space_tag_t asict = nict; 150 bus_space_handle_t asich; 151 const char *typestr; 152 int netype; 153 154 dsc->sc_dev = self; 155 aprint_normal("\n"); 156 157 /* Map i/o space. */ 158 if (bus_space_map(nict, ia->ia_io[0].ir_addr, NE2000_NPORTS, 159 0, &nich)) { 160 aprint_error_dev(self, "can't map i/o space\n"); 161 return; 162 } 163 164 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET, 165 NE2000_ASIC_NPORTS, &asich)) { 166 aprint_error_dev(self, "can't subregion i/o space\n"); 167 return; 168 } 169 170 dsc->sc_regt = nict; 171 dsc->sc_regh = nich; 172 173 nsc->sc_asict = asict; 174 nsc->sc_asich = asich; 175 176 /* 177 * Detect it again, so we can print some information about the 178 * interface. 179 */ 180 netype = ne2000_detect(nict, nich, asict, asich); 181 switch (netype) { 182 case NE2000_TYPE_NE1000: 183 typestr = "NE1000"; 184 break; 185 186 case NE2000_TYPE_NE2000: 187 typestr = "NE2000"; 188 /* 189 * Check for a Realtek 8019. 190 */ 191 bus_space_write_1(nict, nich, ED_P0_CR, 192 ED_CR_PAGE_0 | ED_CR_STP); 193 if (bus_space_read_1(nict, nich, NERTL_RTL0_8019ID0) == 194 RTL0_8019ID0 && 195 bus_space_read_1(nict, nich, NERTL_RTL0_8019ID1) == 196 RTL0_8019ID1) { 197 typestr = "NE2000 (RTL8019)"; 198 dsc->sc_mediachange = rtl80x9_mediachange; 199 dsc->sc_mediastatus = rtl80x9_mediastatus; 200 dsc->init_card = rtl80x9_init_card; 201 dsc->sc_media_init = rtl80x9_media_init; 202 } 203 break; 204 205 default: 206 aprint_error_dev(self, "where did the card go?!\n"); 207 return; 208 } 209 210 aprint_normal_dev(self, "%s Ethernet\n", typestr); 211 212 /* This interface is always enabled. */ 213 dsc->sc_enabled = 1; 214 215 /* 216 * Do generic NE2000 attach. This will read the station address 217 * from the EEPROM. 218 */ 219 ne2000_attach(nsc, NULL); 220 221 /* Establish the interrupt handler. */ 222 isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 223 IST_EDGE, IPL_NET, dp8390_intr, dsc); 224 if (isc->sc_ih == NULL) 225 aprint_error_dev(self, 226 "couldn't establish interrupt handler\n"); 227 } 228
Indexes created Thu Oct 02 14:10:14 GMT 2025