1 /* $NetBSD: if_sm_isa.c,v 1.7 2001/07/08 17:55:50 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1997 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/param.h> 41 #include <sys/systm.h> 42 #include <sys/mbuf.h> 43 #include <sys/socket.h> 44 #include <sys/ioctl.h> 45 #include <sys/errno.h> 46 #include <sys/syslog.h> 47 #include <sys/select.h> 48 #include <sys/device.h> 49 50 #include <net/if.h> 51 #include <net/if_dl.h> 52 #include <net/if_ether.h> 53 #include <net/if_media.h> 54 55 #include <machine/intr.h> 56 #include <machine/bus.h> 57 58 #include <dev/mii/mii.h> 59 #include <dev/mii/miivar.h> 60 61 #include <dev/ic/smc91cxxreg.h> 62 #include <dev/ic/smc91cxxvar.h> 63 64 #include <dev/isa/isavar.h> 65 66 int sm_isa_match __P((struct device *, struct cfdata *, void *)); 67 void sm_isa_attach __P((struct device *, struct device *, void *)); 68 69 struct sm_isa_softc { 70 struct smc91cxx_softc sc_smc; /* real "smc" softc */ 71 72 /* ISA-specific goo. */ 73 void *sc_ih; /* interrupt cookie */ 74 }; 75 76 struct cfattach sm_isa_ca = { 77 sizeof(struct sm_isa_softc), sm_isa_match, sm_isa_attach 78 }; 79 80 int 81 sm_isa_match(parent, match, aux) 82 struct device *parent; 83 struct cfdata *match; 84 void *aux; 85 { 86 struct isa_attach_args *ia = aux; 87 bus_space_tag_t iot = ia->ia_iot; 88 bus_space_handle_t ioh; 89 u_int16_t tmp; 90 int rv = 0; 91 extern const char *smc91cxx_idstrs[]; 92 93 /* Disallow wildcarded values. */ 94 if (ia->ia_irq == -1) 95 return (0); 96 if (ia->ia_iobase == -1) 97 return (0); 98 99 /* Map i/o space. */ 100 if (bus_space_map(iot, ia->ia_iobase, SMC_IOSIZE, 0, &ioh)) 101 return (0); 102 103 /* Check that high byte of BANK_SELECT is what we expect. */ 104 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W); 105 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE) 106 goto out; 107 108 /* 109 * Switch to bank 0 and perform the test again. 110 * XXX INVASIVE! 111 */ 112 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 0); 113 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W); 114 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE) 115 goto out; 116 117 /* 118 * Switch to bank 1 and check the base address register. 119 * XXX INVASIVE! 120 */ 121 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 1); 122 tmp = bus_space_read_2(iot, ioh, BASE_ADDR_REG_W); 123 if (ia->ia_iobase != ((tmp >> 3) & 0x3e0)) 124 goto out; 125 126 /* 127 * Check for a recognized chip id. 128 * XXX INVASIVE! 129 */ 130 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 3); 131 tmp = bus_space_read_2(iot, ioh, REVISION_REG_W); 132 if (smc91cxx_idstrs[RR_ID(tmp)] == NULL) 133 goto out; 134 135 /* 136 * Assume we have an SMC91Cxx. 137 */ 138 ia->ia_iosize = SMC_IOSIZE; 139 rv = 1; 140 141 out: 142 bus_space_unmap(iot, ioh, SMC_IOSIZE); 143 return (rv); 144 } 145 146 void 147 sm_isa_attach(parent, self, aux) 148 struct device *parent, *self; 149 void *aux; 150 { 151 struct sm_isa_softc *isc = (struct sm_isa_softc *)self; 152 struct smc91cxx_softc *sc = &isc->sc_smc; 153 struct isa_attach_args *ia = aux; 154 bus_space_tag_t iot = ia->ia_iot; 155 bus_space_handle_t ioh; 156 157 printf("\n"); 158 159 /* Map i/o space. */ 160 if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh)) 161 panic("sm_isa_attach: can't map i/o space"); 162 163 sc->sc_bst = iot; 164 sc->sc_bsh = ioh; 165 166 /* should always be enabled */ 167 sc->sc_flags |= SMC_FLAGS_ENABLED; 168 169 /* XXX Should get Ethernet address from EEPROM!! */ 170 171 /* Perform generic intialization. */ 172 smc91cxx_attach(sc, NULL); 173 174 /* Establish the interrupt handler. */ 175 isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 176 IPL_NET, smc91cxx_intr, sc); 177 if (isc->sc_ih == NULL) 178 printf("%s: couldn't establish interrupt handler\n", 179 sc->sc_dev.dv_xname); 180 } 181