1 /* $NetBSD: if_ne_isa.c,v 1.26 2008/04/28 20:23:52 martin 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 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: if_ne_isa.c,v 1.26 2008/04/28 20:23:52 martin Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/mbuf.h> 39 #include <sys/socket.h> 40 #include <sys/ioctl.h> 41 #include <sys/errno.h> 42 #include <sys/syslog.h> 43 #include <sys/select.h> 44 #include <sys/device.h> 45 46 #include <net/if.h> 47 #include <net/if_dl.h> 48 #include <net/if_ether.h> 49 #include <net/if_media.h> 50 51 #include <sys/intr.h> 52 #include <sys/bus.h> 53 54 #include <dev/ic/dp8390reg.h> 55 #include <dev/ic/dp8390var.h> 56 57 #include <dev/ic/ne2000reg.h> 58 #include <dev/ic/ne2000var.h> 59 60 #include <dev/ic/rtl80x9reg.h> 61 #include <dev/ic/rtl80x9var.h> 62 63 #include <dev/isa/isavar.h> 64 65 int ne_isa_match(device_t, cfdata_t, void *); 66 void ne_isa_attach(device_t, device_t, void *); 67 68 struct ne_isa_softc { 69 struct ne2000_softc sc_ne2000; /* real "ne2000" softc */ 70 71 /* ISA-specific goo. */ 72 void *sc_ih; /* interrupt cookie */ 73 }; 74 75 CFATTACH_DECL_NEW(ne_isa, sizeof(struct ne_isa_softc), 76 ne_isa_match, ne_isa_attach, NULL, NULL); 77 78 int 79 ne_isa_match(device_t parent, cfdata_t match, void *aux) 80 { 81 struct isa_attach_args *ia = aux; 82 bus_space_tag_t nict = ia->ia_iot; 83 bus_space_handle_t nich; 84 bus_space_tag_t asict; 85 bus_space_handle_t asich; 86 int rv = 0; 87 88 if (ia->ia_nio < 1) 89 return (0); 90 if (ia->ia_nirq < 1) 91 return (0); 92 93 if (ISA_DIRECT_CONFIG(ia)) 94 return (0); 95 96 /* Disallow wildcarded values. */ 97 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 98 return (0); 99 if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) 100 return (0); 101 102 /* Make sure this is a valid NE[12]000 i/o address. */ 103 if ((ia->ia_io[0].ir_addr & 0x1f) != 0) 104 return (0); 105 106 /* Map i/o space. */ 107 if (bus_space_map(nict, ia->ia_io[0].ir_addr, NE2000_NPORTS, 0, &nich)) 108 return (0); 109 110 asict = nict; 111 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET, 112 NE2000_ASIC_NPORTS, &asich)) 113 goto out; 114 115 /* Look for an NE2000-compatible card. */ 116 rv = ne2000_detect(nict, nich, asict, asich); 117 118 if (rv) { 119 ia->ia_nio = 1; 120 ia->ia_io[0].ir_size = NE2000_NPORTS; 121 122 ia->ia_nirq = 1; 123 124 ia->ia_niomem = 0; 125 ia->ia_ndrq = 0; 126 } 127 128 out: 129 bus_space_unmap(nict, nich, NE2000_NPORTS); 130 return (rv); 131 } 132 133 void 134 ne_isa_attach(device_t parent, device_t self, void *aux) 135 { 136 struct ne_isa_softc *isc = device_private(self); 137 struct ne2000_softc *nsc = &isc->sc_ne2000; 138 struct dp8390_softc *dsc = &nsc->sc_dp8390; 139 struct isa_attach_args *ia = aux; 140 bus_space_tag_t nict = ia->ia_iot; 141 bus_space_handle_t nich; 142 bus_space_tag_t asict = nict; 143 bus_space_handle_t asich; 144 const char *typestr; 145 int netype; 146 147 dsc->sc_dev = self; 148 aprint_normal("\n"); 149 150 /* Map i/o space. */ 151 if (bus_space_map(nict, ia->ia_io[0].ir_addr, NE2000_NPORTS, 152 0, &nich)) { 153 aprint_error_dev(self, "can't map i/o space\n"); 154 return; 155 } 156 157 if (bus_space_subregion(nict, nich, NE2000_ASIC_OFFSET, 158 NE2000_ASIC_NPORTS, &asich)) { 159 aprint_error_dev(self, "can't subregion i/o space\n"); 160 return; 161 } 162 163 dsc->sc_regt = nict; 164 dsc->sc_regh = nich; 165 166 nsc->sc_asict = asict; 167 nsc->sc_asich = asich; 168 169 /* 170 * Detect it again, so we can print some information about the 171 * interface. 172 */ 173 netype = ne2000_detect(nict, nich, asict, asich); 174 switch (netype) { 175 case NE2000_TYPE_NE1000: 176 typestr = "NE1000"; 177 break; 178 179 case NE2000_TYPE_NE2000: 180 typestr = "NE2000"; 181 /* 182 * Check for a Realtek 8019. 183 */ 184 bus_space_write_1(nict, nich, ED_P0_CR, 185 ED_CR_PAGE_0 | ED_CR_STP); 186 if (bus_space_read_1(nict, nich, NERTL_RTL0_8019ID0) == 187 RTL0_8019ID0 && 188 bus_space_read_1(nict, nich, NERTL_RTL0_8019ID1) == 189 RTL0_8019ID1) { 190 typestr = "NE2000 (RTL8019)"; 191 dsc->sc_mediachange = rtl80x9_mediachange; 192 dsc->sc_mediastatus = rtl80x9_mediastatus; 193 dsc->init_card = rtl80x9_init_card; 194 dsc->sc_media_init = rtl80x9_media_init; 195 } 196 break; 197 198 default: 199 aprint_error_dev(self, "where did the card go?!\n"); 200 return; 201 } 202 203 aprint_normal_dev(self, "%s Ethernet\n", typestr); 204 205 /* This interface is always enabled. */ 206 dsc->sc_enabled = 1; 207 208 /* 209 * Do generic NE2000 attach. This will read the station address 210 * from the EEPROM. 211 */ 212 ne2000_attach(nsc, NULL); 213 214 /* Establish the interrupt handler. */ 215 isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 216 IST_EDGE, IPL_NET, dp8390_intr, dsc); 217 if (isc->sc_ih == NULL) 218 aprint_error_dev(self, 219 "couldn't establish interrupt handler\n"); 220 } 221