1 /* $NetBSD: if_sm_isa.c,v 1.13 2004/09/14 20:20:48 drochner 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 1.13 2004/09/14 20:20:48 drochner 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 CFATTACH_DECL(sm_isa, sizeof(struct sm_isa_softc), 80 sm_isa_match, sm_isa_attach, NULL, NULL); 81 82 int 83 sm_isa_match(parent, match, aux) 84 struct device *parent; 85 struct cfdata *match; 86 void *aux; 87 { 88 struct isa_attach_args *ia = aux; 89 bus_space_tag_t iot = ia->ia_iot; 90 bus_space_handle_t ioh; 91 u_int16_t tmp; 92 int rv = 0; 93 extern const char *smc91cxx_idstrs[]; 94 95 if (ia->ia_nio < 1) 96 return (0); 97 if (ia->ia_nirq < 1) 98 return (0); 99 100 if (ISA_DIRECT_CONFIG(ia)) 101 return (0); 102 103 /* Disallow wildcarded values. */ 104 if (ia->ia_io[0].ir_addr == ISA_UNKNOWN_PORT) 105 return (0); 106 if (ia->ia_irq[0].ir_irq == ISA_UNKNOWN_IRQ) 107 return (0); 108 109 /* Map i/o space. */ 110 if (bus_space_map(iot, ia->ia_io[0].ir_addr, SMC_IOSIZE, 0, &ioh)) 111 return (0); 112 113 /* Check that high byte of BANK_SELECT is what we expect. */ 114 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W); 115 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE) 116 goto out; 117 118 /* 119 * Switch to bank 0 and perform the test again. 120 * XXX INVASIVE! 121 */ 122 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 0); 123 tmp = bus_space_read_2(iot, ioh, BANK_SELECT_REG_W); 124 if ((tmp & BSR_DETECT_MASK) != BSR_DETECT_VALUE) 125 goto out; 126 127 /* 128 * Switch to bank 1 and check the base address register. 129 * XXX INVASIVE! 130 */ 131 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 1); 132 tmp = bus_space_read_2(iot, ioh, BASE_ADDR_REG_W); 133 if (ia->ia_io[0].ir_addr != ((tmp >> 3) & 0x3e0)) 134 goto out; 135 136 /* 137 * Check for a recognized chip id. 138 * XXX INVASIVE! 139 */ 140 bus_space_write_2(iot, ioh, BANK_SELECT_REG_W, 3); 141 tmp = bus_space_read_2(iot, ioh, REVISION_REG_W); 142 if (smc91cxx_idstrs[RR_ID(tmp)] == NULL) 143 goto out; 144 145 /* 146 * Assume we have an SMC91Cxx. 147 */ 148 ia->ia_nio = 1; 149 ia->ia_io[0].ir_size = SMC_IOSIZE; 150 151 ia->ia_nirq = 1; 152 153 ia->ia_niomem = 0; 154 ia->ia_ndrq = 0; 155 156 rv = 1; 157 158 out: 159 bus_space_unmap(iot, ioh, SMC_IOSIZE); 160 return (rv); 161 } 162 163 void 164 sm_isa_attach(parent, self, aux) 165 struct device *parent, *self; 166 void *aux; 167 { 168 struct sm_isa_softc *isc = (struct sm_isa_softc *)self; 169 struct smc91cxx_softc *sc = &isc->sc_smc; 170 struct isa_attach_args *ia = aux; 171 bus_space_tag_t iot = ia->ia_iot; 172 bus_space_handle_t ioh; 173 174 printf("\n"); 175 176 /* Map i/o space. */ 177 if (bus_space_map(iot, ia->ia_io[0].ir_addr, SMC_IOSIZE, 0, &ioh)) 178 panic("sm_isa_attach: can't map i/o space"); 179 180 sc->sc_bst = iot; 181 sc->sc_bsh = ioh; 182 183 /* should always be enabled */ 184 sc->sc_flags |= SMC_FLAGS_ENABLED; 185 186 /* XXX Should get Ethernet address from EEPROM!! */ 187 188 /* Perform generic intialization. */ 189 smc91cxx_attach(sc, NULL); 190 191 /* Establish the interrupt handler. */ 192 isc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, 193 IST_EDGE, IPL_NET, smc91cxx_intr, sc); 194 if (isc->sc_ih == NULL) 195 printf("%s: couldn't establish interrupt handler\n", 196 sc->sc_dev.dv_xname); 197 } 198