if_sm_isa.c revision 1.8
1 /* $NetBSD: if_sm_isa.c,v 1.8 2001/11/13 08:01:20 lukem 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/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: if_sm_isa.c,v 1.8 2001/11/13 08:01:20 lukem Exp $"); 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/mbuf.h> 46 #include <sys/socket.h> 47 #include <sys/ioctl.h> 48 #include <sys/errno.h> 49 #include <sys/syslog.h> 50 #include <sys/select.h> 51 #include <sys/device.h> 52 53 #include <net/if.h> 54 #include <net/if_dl.h> 55 #include <net/if_ether.h> 56 #include <net/if_media.h> 57 58 #include <machine/intr.h> 59 #include <machine/bus.h> 60 61 #include <dev/mii/mii.h> 62 #include <dev/mii/miivar.h> 63 64 #include <dev/ic/smc91cxxreg.h> 65 #include <dev/ic/smc91cxxvar.h> 66 67 #include <dev/isa/isavar.h> 68 69 int sm_isa_match __P((struct device *, struct cfdata *, void *)); 70 void sm_isa_attach __P((struct device *, struct device *, void *)); 71 72 struct sm_isa_softc { 73 struct smc91cxx_softc sc_smc; /* real "smc" softc */ 74 75 /* ISA-specific goo. */ 76 void *sc_ih; /* interrupt cookie */ 77 }; 78 79 struct cfattach sm_isa_ca = { 80 sizeof(struct sm_isa_softc), sm_isa_match, sm_isa_attach 81 }; 82 83 int 84 sm_isa_match(parent, match, aux) 85 struct device *parent; 86 struct cfdata *match; 87 void *aux; 88 { 89 struct isa_attach_args *ia = aux; 90 bus_space_tag_t iot = ia->ia_iot; 91 bus_space_handle_t ioh; 92 u_int16_t tmp; 93 int rv = 0; 94 extern const char *smc91cxx_idstrs[]; 95 96 /* Disallow wildcarded values. */ 97 if (ia->ia_irq == -1) 98 return (0); 99 if (ia->ia_iobase == -1) 100 return (0); 101 102 /* Map i/o space. */ 103 if (bus_space_map(iot, ia->ia_iobase, SMC_IOSIZE, 0, &ioh)) 104 return (0); 105 106 /* Check that high byte of BANK_SELECT is what we expect. */ 107 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W); 108 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE) 109 goto out; 110 111 /* 112 * Switch to bank 0 and perform the test again. 113 * XXX INVASIVE! 114 */ 115 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 0); 116 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W); 117 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE) 118 goto out; 119 120 /* 121 * Switch to bank 1 and check the base address register. 122 * XXX INVASIVE! 123 */ 124 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 1); 125 tmp = bus_space_read_2(iot, ioh, BASE_ADDR_REG_W); 126 if (ia->ia_iobase != ((tmp >> 3) & 0x3e0)) 127 goto out; 128 129 /* 130 * Check for a recognized chip id. 131 * XXX INVASIVE! 132 */ 133 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 3); 134 tmp = bus_space_read_2(iot, ioh, REVISION_REG_W); 135 if (smc91cxx_idstrs[RR_ID(tmp)] == NULL) 136 goto out; 137 138 /* 139 * Assume we have an SMC91Cxx. 140 */ 141 ia->ia_iosize = SMC_IOSIZE; 142 rv = 1; 143 144 out: 145 bus_space_unmap(iot, ioh, SMC_IOSIZE); 146 return (rv); 147 } 148 149 void 150 sm_isa_attach(parent, self, aux) 151 struct device *parent, *self; 152 void *aux; 153 { 154 struct sm_isa_softc *isc = (struct sm_isa_softc *)self; 155 struct smc91cxx_softc *sc = &isc->sc_smc; 156 struct isa_attach_args *ia = aux; 157 bus_space_tag_t iot = ia->ia_iot; 158 bus_space_handle_t ioh; 159 160 printf("\n"); 161 162 /* Map i/o space. */ 163 if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh)) 164 panic("sm_isa_attach: can't map i/o space"); 165 166 sc->sc_bst = iot; 167 sc->sc_bsh = ioh; 168 169 /* should always be enabled */ 170 sc->sc_flags |= SMC_FLAGS_ENABLED; 171 172 /* XXX Should get Ethernet address from EEPROM!! */ 173 174 /* Perform generic intialization. */ 175 smc91cxx_attach(sc, NULL); 176 177 /* Establish the interrupt handler. */ 178 isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE, 179 IPL_NET, smc91cxx_intr, sc); 180 if (isc->sc_ih == NULL) 181 printf("%s: couldn't establish interrupt handler\n", 182 sc->sc_dev.dv_xname); 183 } 184
Indexes created Tue Sep 23 22:09:46 GMT 2025