1 /* $NetBSD: depca_eisa.c,v 1.13 2010/01/19 22:06:23 pooka Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 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. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /* 33 * EISA bus front-end for the Digital DEPCA Ethernet controller. 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: depca_eisa.c,v 1.13 2010/01/19 22:06:23 pooka Exp $"); 38 39 #include "opt_inet.h" 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/mbuf.h> 44 #include <sys/syslog.h> 45 #include <sys/socket.h> 46 #include <sys/device.h> 47 48 #include <net/if.h> 49 #include <net/if_media.h> 50 #include <net/if_ether.h> 51 52 #ifdef INET 53 #include <netinet/in.h> 54 #include <netinet/if_inarp.h> 55 #endif 56 57 #include <sys/bus.h> 58 #include <sys/intr.h> 59 60 #include <dev/eisa/eisareg.h> 61 #include <dev/eisa/eisavar.h> 62 #include <dev/eisa/eisadevs.h> 63 64 #include <dev/ic/lancereg.h> 65 #include <dev/ic/lancevar.h> 66 #include <dev/ic/am7990reg.h> 67 #include <dev/ic/am7990var.h> 68 #include <dev/ic/depcareg.h> 69 #include <dev/ic/depcavar.h> 70 71 static int depca_eisa_match(device_t, cfdata_t, void *); 72 static void depca_eisa_attach(device_t, device_t, void *); 73 74 struct depca_eisa_softc { 75 struct depca_softc sc_depca; 76 77 eisa_chipset_tag_t sc_ec; 78 int sc_irq; 79 int sc_ist; 80 }; 81 82 CFATTACH_DECL_NEW(depca_eisa, sizeof(struct depca_eisa_softc), 83 depca_eisa_match, depca_eisa_attach, NULL, NULL); 84 85 static void *depca_eisa_intr_establish(struct depca_softc *, 86 struct lance_softc *); 87 88 static int 89 depca_eisa_match(device_t parent, cfdata_t cf, void *aux) 90 { 91 struct eisa_attach_args *ea = aux; 92 93 return (strcmp(ea->ea_idstring, "DEC4220") == 0); 94 } 95 96 #define DEPCA_ECU_FUNC_NETINTR 0 97 #define DEPCA_ECU_FUNC_NETBUF 1 98 99 static void 100 depca_eisa_attach(device_t parent, device_t self, void *aux) 101 { 102 struct depca_eisa_softc *esc = device_private(self); 103 struct depca_softc *sc = &esc->sc_depca; 104 struct eisa_attach_args *ea = aux; 105 struct eisa_cfg_mem ecm; 106 struct eisa_cfg_irq eci; 107 108 sc->sc_dev = self; 109 aprint_error(": DEC DE422 Ethernet\n"); 110 111 sc->sc_iot = ea->ea_iot; 112 sc->sc_memt = ea->ea_memt; 113 114 esc->sc_ec = ea->ea_ec; 115 116 sc->sc_intr_establish = depca_eisa_intr_establish; 117 118 if (eisa_conf_read_mem(ea->ea_ec, ea->ea_slot, 119 DEPCA_ECU_FUNC_NETBUF, 0, &ecm) != 0) { 120 aprint_error_dev(self, "unable to find network buffer\n"); 121 return; 122 } 123 124 aprint_normal_dev(self, "shared memory at 0x%lx-0x%lx\n", 125 ecm.ecm_addr, ecm.ecm_addr + ecm.ecm_size - 1); 126 127 sc->sc_memsize = ecm.ecm_size; 128 129 if (bus_space_map(sc->sc_iot, EISA_SLOT_ADDR(ea->ea_slot) + 0xc00, 16, 130 0, &sc->sc_ioh) != 0) { 131 aprint_error_dev(self, "unable to map i/o space\n"); 132 return; 133 } 134 if (bus_space_map(sc->sc_memt, ecm.ecm_addr, sc->sc_memsize, 135 0, &sc->sc_memh) != 0) { 136 aprint_error_dev(self, "unable to map memory space\n"); 137 return; 138 } 139 140 if (eisa_conf_read_irq(ea->ea_ec, ea->ea_slot, 141 DEPCA_ECU_FUNC_NETINTR, 0, &eci) != 0) { 142 aprint_error_dev(self, "unable to determine IRQ\n"); 143 return; 144 } 145 146 esc->sc_irq = eci.eci_irq; 147 esc->sc_ist = eci.eci_ist; 148 149 depca_attach(sc); 150 } 151 152 static void * 153 depca_eisa_intr_establish(struct depca_softc *parent, struct lance_softc *child) 154 { 155 struct depca_eisa_softc *esc = (struct depca_eisa_softc *)parent; 156 eisa_intr_handle_t ih; 157 const char *intrstr; 158 void *rv; 159 160 if (eisa_intr_map(esc->sc_ec, esc->sc_irq, &ih)) { 161 aprint_error_dev(parent->sc_dev, 162 "unable to map interrupt (%d)\n", esc->sc_irq); 163 return (NULL); 164 } 165 intrstr = eisa_intr_string(esc->sc_ec, ih); 166 rv = eisa_intr_establish(esc->sc_ec, ih, esc->sc_ist, IPL_NET, 167 (esc->sc_ist == IST_LEVEL) ? am7990_intr : depca_intredge, child); 168 if (rv == NULL) { 169 aprint_error_dev(parent->sc_dev, 170 "unable to establish interrupt"); 171 if (intrstr != NULL) 172 aprint_error(" at %s", intrstr); 173 aprint_error("\n"); 174 return (NULL); 175 } 176 if (intrstr != NULL) 177 aprint_normal_dev(parent->sc_dev, "interrupting at %s\n", 178 intrstr); 179 180 return (rv); 181 } 182