1 /* $OpenBSD: if_sm_isa.c,v 1.15 2021/03/07 06:17:03 jsg Exp $ */ 2 /* $NetBSD: if_sm_isa.c,v 1.4 1998/07/05 06:49:14 jonathan Exp $ */ 3 4 /*- 5 * Copyright (c) 1997 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 10 * NASA Ames Research Center. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include "bpfilter.h" 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/selinfo.h> 44 #include <sys/timeout.h> 45 #include <sys/device.h> 46 47 #include <net/if.h> 48 #include <net/if_media.h> 49 50 #include <netinet/in.h> 51 #include <netinet/if_ether.h> 52 53 #if NBPFILTER > 0 54 #include <net/bpf.h> 55 #endif 56 57 #include <machine/intr.h> 58 #include <machine/bus.h> 59 60 #include <dev/mii/mii.h> 61 #include <dev/mii/miivar.h> 62 63 #include <dev/ic/smc91cxxreg.h> 64 #include <dev/ic/smc91cxxvar.h> 65 66 #include <dev/isa/isavar.h> 67 68 int sm_isa_match(struct device *, void *, void *); 69 void sm_isa_attach(struct device *, struct device *, void *); 70 71 struct sm_isa_softc { 72 struct smc91cxx_softc sc_smc; /* real "smc" softc */ 73 74 /* ISA-specific goo. */ 75 void *sc_ih; /* interrupt cookie */ 76 }; 77 78 struct cfattach sm_isa_ca = { 79 sizeof(struct sm_isa_softc), sm_isa_match, sm_isa_attach 80 }; 81 82 int 83 sm_isa_match(struct device *parent, void *match, void *aux) 84 { 85 struct isa_attach_args *ia = aux; 86 bus_space_tag_t iot = ia->ia_iot; 87 bus_space_handle_t ioh; 88 u_int16_t tmp; 89 int rv = 0; 90 extern const char *smc91cxx_idstrs[]; 91 92 /* Disallow wildcarded values. */ 93 if (ia->ia_irq == -1) 94 return (0); 95 if (ia->ia_iobase == -1) 96 return (0); 97 98 /* Map i/o space. */ 99 if (bus_space_map(iot, ia->ia_iobase, SMC_IOSIZE, 0, &ioh)) 100 return (0); 101 102 /* Check that high byte of BANK_SELECT is what we expect. */ 103 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W); 104 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE) 105 goto out; 106 107 /* 108 * Switch to bank 0 and perform the test again. 109 * XXX INVASIVE! 110 */ 111 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 0); 112 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W); 113 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE) 114 goto out; 115 116 /* 117 * Switch to bank 1 and check the base address register. 118 * XXX INVASIVE! 119 */ 120 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 1); 121 tmp = bus_space_read_2(iot, ioh, BASE_ADDR_REG_W); 122 if (ia->ia_iobase != ((tmp >> 3) & 0x3e0)) 123 goto out; 124 125 /* 126 * Check for a recognized chip id. 127 * XXX INVASIVE! 128 */ 129 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 3); 130 tmp = bus_space_read_2(iot, ioh, REVISION_REG_W); 131 if (smc91cxx_idstrs[RR_ID(tmp)] == NULL) 132 goto out; 133 134 /* 135 * Assume we have an SMC91Cxx. 136 */ 137 ia->ia_iosize = SMC_IOSIZE; 138 rv = 1; 139 140 out: 141 bus_space_unmap(iot, ioh, SMC_IOSIZE); 142 return (rv); 143 } 144 145 void 146 sm_isa_attach(struct device *parent, struct device *self, void *aux) 147 { 148 struct sm_isa_softc *isc = (struct sm_isa_softc *)self; 149 struct smc91cxx_softc *sc = &isc->sc_smc; 150 struct isa_attach_args *ia = aux; 151 bus_space_tag_t iot = ia->ia_iot; 152 bus_space_handle_t ioh; 153 154 printf("\n"); 155 156 /* Map i/o space. */ 157 if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh)) 158 panic("sm_isa_attach: can't map i/o space"); 159 160 sc->sc_bst = iot; 161 sc->sc_bsh = ioh; 162 163 /* should always be enabled */ 164 sc->sc_enabled = 1; 165 166 /* XXX Should get Ethernet address from EEPROM!! */ 167 168 /* Perform generic initialization. */ 169 smc91cxx_attach(sc, NULL); 170 171 /* Establish the interrupt handler. */ 172 isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 173 IPL_NET, smc91cxx_intr, sc, sc->sc_dev.dv_xname); 174 if (isc->sc_ih == NULL) 175 printf("%s: couldn't establish interrupt handler\n", 176 sc->sc_dev.dv_xname); 177 } 178