depca_isa.c revision 1.12.16.1
1/* $NetBSD: depca_isa.c,v 1.12.16.1 2008/06/02 13:23:30 mjf Exp $ */ 2 3/*- 4 * Copyright (c) 1997, 1998, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum and by Jason R. Thorpe of the Numerical Aerospace 9 * Simulation Facility, 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/*- 34 * Copyright (c) 1992, 1993 35 * The Regents of the University of California. All rights reserved. 36 * 37 * This code is derived from software contributed to Berkeley by 38 * Ralph Campbell and Rick Macklem. 39 * 40 * Redistribution and use in source and binary forms, with or without 41 * modification, are permitted provided that the following conditions 42 * are met: 43 * 1. Redistributions of source code must retain the above copyright 44 * notice, this list of conditions and the following disclaimer. 45 * 2. Redistributions in binary form must reproduce the above copyright 46 * notice, this list of conditions and the following disclaimer in the 47 * documentation and/or other materials provided with the distribution. 48 * 3. Neither the name of the University nor the names of its contributors 49 * may be used to endorse or promote products derived from this software 50 * without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 * SUCH DAMAGE. 63 * 64 * @(#)if_le.c 8.2 (Berkeley) 11/16/93 65 */ 66 67#include <sys/cdefs.h> 68__KERNEL_RCSID(0, "$NetBSD: depca_isa.c,v 1.12.16.1 2008/06/02 13:23:30 mjf Exp $"); 69 70#include "opt_inet.h" 71#include "bpfilter.h" 72 73#include <sys/param.h> 74#include <sys/systm.h> 75#include <sys/mbuf.h> 76#include <sys/syslog.h> 77#include <sys/socket.h> 78#include <sys/device.h> 79 80#include <net/if.h> 81#include <net/if_ether.h> 82#include <net/if_media.h> 83 84#ifdef INET 85#include <netinet/in.h> 86#include <netinet/if_inarp.h> 87#endif 88 89#include <sys/cpu.h> 90#include <sys/intr.h> 91#include <sys/bus.h> 92 93#include <dev/isa/isareg.h> 94#include <dev/isa/isavar.h> 95 96#include <dev/ic/lancereg.h> 97#include <dev/ic/lancevar.h> 98#include <dev/ic/am7990reg.h> 99#include <dev/ic/am7990var.h> 100#include <dev/ic/depcareg.h> 101#include <dev/ic/depcavar.h> 102 103int depca_isa_probe(device_t, cfdata_t, void *); 104void depca_isa_attach(device_t, device_t, void *); 105 106struct depca_isa_softc { 107 struct depca_softc sc_depca; 108 isa_chipset_tag_t sc_ic; 109 int sc_irq; 110}; 111 112CFATTACH_DECL_NEW(depca_isa, sizeof(struct depca_isa_softc), 113 depca_isa_probe, depca_isa_attach, NULL, NULL); 114 115void *depca_isa_intr_establish(struct depca_softc *, struct lance_softc *); 116 117int 118depca_isa_probe(device_t parent, cfdata_t cf, void *aux) 119{ 120 struct isa_attach_args *ia = aux; 121 bus_space_tag_t iot = ia->ia_iot; 122 bus_space_handle_t ioh; 123 bus_space_handle_t memh; 124 int rv = 0; 125 126 if (ia->ia_nio < 1) 127 return (0); 128 if (ia->ia_niomem < 1) 129 return (0); 130 if (ia->ia_nirq < 1) 131 return (0); 132 133 if (ISA_DIRECT_CONFIG(ia)) 134 return (0); 135 136 if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) 137 return (0); 138 139 /* Disallow impossible i/o address. */ 140 if (ia->ia_io[0].ir_addr != 0x200 && ia->ia_io[0].ir_addr != 0x300) 141 return (0); 142 143 /* Map i/o space. */ 144 if (bus_space_map(iot, ia->ia_io[0].ir_addr, 16, 0, &ioh)) 145 return 0; 146 147 if (ia->ia_iomem[0].ir_addr == ISA_UNKNOWN_IOMEM || 148 (ia->ia_iomem[0].ir_size != 32 * 1024 && 149 ia->ia_iomem[0].ir_size != 64 * 1024)) 150 goto bad; 151 152 /* Map card RAM. */ 153 if (bus_space_map(ia->ia_memt, ia->ia_iomem[0].ir_addr, 154 ia->ia_iomem[0].ir_size, 0, &memh)) 155 goto bad; 156 157 /* Just needed to check mapability; don't need it anymore. */ 158 bus_space_unmap(ia->ia_memt, memh, ia->ia_iomem[0].ir_size); 159 160 /* Stop the LANCE chip and put it in a known state. */ 161 bus_space_write_2(iot, ioh, DEPCA_RAP, LE_CSR0); 162 bus_space_write_2(iot, ioh, DEPCA_RDP, LE_C0_STOP); 163 delay(100); 164 165 bus_space_write_2(iot, ioh, DEPCA_RAP, LE_CSR0); 166 if (bus_space_read_2(iot, ioh, DEPCA_RDP) != LE_C0_STOP) 167 goto bad; 168 169 bus_space_write_2(iot, ioh, DEPCA_RAP, LE_CSR3); 170 bus_space_write_2(iot, ioh, DEPCA_RDP, LE_C3_ACON); 171 172 bus_space_write_1(iot, ioh, DEPCA_CSR, DEPCA_CSR_DUM); 173 174 if (depca_readprom(iot, ioh, NULL)) 175 goto bad; 176 177 ia->ia_nio = 1; 178 ia->ia_io[0].ir_size = 16; 179 180 ia->ia_niomem = 1; 181 182 ia->ia_nirq = 1; 183 184 ia->ia_ndrq = 0; 185 186 rv = 1; 187 188 bad: 189 bus_space_unmap(iot, ioh, 16); 190 return (rv); 191} 192 193void 194depca_isa_attach(device_t parent, device_t self, void *aux) 195{ 196 struct depca_isa_softc *isc = device_private(self); 197 struct depca_softc *sc = &isc->sc_depca; 198 struct isa_attach_args *ia = aux; 199 200 sc->sc_dev = self; 201 aprint_normal("\n"); 202 203 sc->sc_iot = ia->ia_iot; 204 sc->sc_memt = ia->ia_memt; 205 206 sc->sc_memsize = ia->ia_iomem[0].ir_size; 207 208 if (bus_space_map(sc->sc_iot, ia->ia_io[0].ir_addr, 16, 209 0, &sc->sc_ioh) != 0) { 210 aprint_error_dev(self, "unable to map i/o space\n"); 211 return; 212 } 213 if (bus_space_map(sc->sc_memt, ia->ia_iomem[0].ir_addr, 214 ia->ia_iomem[0].ir_size, 0, &sc->sc_memh) != 0) { 215 aprint_error_dev(self, "unable to map memory space\n"); 216 return; 217 } 218 219 isc->sc_ic = ia->ia_ic; 220 isc->sc_irq = ia->ia_irq[0].ir_irq; 221 sc->sc_intr_establish = depca_isa_intr_establish; 222 223 depca_attach(sc); 224} 225 226void * 227depca_isa_intr_establish(struct depca_softc *parent, struct lance_softc *child) 228{ 229 struct depca_isa_softc *isc = (struct depca_isa_softc *)parent; 230 void *rv; 231 232 rv = isa_intr_establish(isc->sc_ic, isc->sc_irq, IST_EDGE, 233 IPL_NET, depca_intredge, child); 234 if (rv == NULL) 235 printf("%s: unable to establish interrupt\n", 236 device_xname(parent->sc_dev)); 237 238 return (rv); 239} 240