1 /* $NetBSD: if_cs_pcmcia.c,v 1.18 2009/05/12 14:42:18 cegger Exp $ */ 2 3 /*- 4 * Copyright (c)2001 YAMAMOTO Takashi, 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: if_cs_pcmcia.c,v 1.18 2009/05/12 14:42:18 cegger Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/device.h> 35 #include <sys/socket.h> 36 #include <sys/queue.h> 37 38 #include "rnd.h" 39 #if NRND > 0 40 #include <sys/rnd.h> 41 #endif 42 43 #include <net/if.h> 44 #include <net/if_ether.h> 45 #include <net/if_media.h> 46 47 #include <sys/bus.h> 48 #include <sys/intr.h> 49 50 #include <dev/pcmcia/pcmciareg.h> 51 #include <dev/pcmcia/pcmciavar.h> 52 #include <dev/pcmcia/pcmciadevs.h> 53 54 #include <dev/ic/cs89x0reg.h> 55 #include <dev/ic/cs89x0var.h> 56 57 struct cs_pcmcia_softc; 58 59 static int cs_pcmcia_match(device_t, cfdata_t, void *); 60 static int cs_pcmcia_validate_config(struct pcmcia_config_entry *); 61 static void cs_pcmcia_attach(device_t, device_t, void *); 62 static int cs_pcmcia_detach(device_t, int); 63 static int cs_pcmcia_enable(struct cs_softc *); 64 static void cs_pcmcia_disable(struct cs_softc *); 65 66 struct cs_pcmcia_softc { 67 struct cs_softc sc_cs; /* real "cs" softc */ 68 69 struct pcmcia_function *sc_pf; 70 71 int sc_state; 72 #define CS_PCMCIA_ATTACHED 3 73 }; 74 75 CFATTACH_DECL(cs_pcmcia, sizeof(struct cs_pcmcia_softc), 76 cs_pcmcia_match, cs_pcmcia_attach, cs_pcmcia_detach, cs_activate); 77 78 static int 79 cs_pcmcia_match(device_t parent, cfdata_t match, 80 void *aux) 81 { 82 struct pcmcia_attach_args *pa = aux; 83 84 if (pa->manufacturer == PCMCIA_VENDOR_IBM && 85 pa->product == PCMCIA_PRODUCT_IBM_ETHERJET) 86 return (1); 87 return (0); 88 } 89 90 static int 91 cs_pcmcia_validate_config(struct pcmcia_config_entry *cfe) 92 { 93 if (cfe->iftype != PCMCIA_IFTYPE_IO || 94 cfe->num_memspace != 0 || 95 cfe->num_iospace != 1 || 96 cfe->iospace[0].length < CS8900_IOSIZE) 97 return (EINVAL); 98 return (0); 99 } 100 101 static void 102 cs_pcmcia_attach(device_t parent, device_t self, void *aux) 103 { 104 struct cs_pcmcia_softc *psc = (void *)self; 105 struct cs_softc *sc = (void *)&psc->sc_cs; 106 struct pcmcia_attach_args *pa = aux; 107 struct pcmcia_config_entry *cfe; 108 struct pcmcia_function *pf; 109 int error; 110 111 pf = psc->sc_pf = pa->pf; 112 113 error = pcmcia_function_configure(pa->pf, cs_pcmcia_validate_config); 114 if (error) { 115 aprint_error_dev(self, "configure failed, error=%d\n", 116 error); 117 return; 118 } 119 120 cfe = pf->cfe; 121 sc->sc_iot = cfe->iospace[0].handle.iot; 122 sc->sc_ioh = cfe->iospace[0].handle.ioh; 123 sc->sc_irq = -1; 124 #define CS_PCMCIA_HACK_FOR_CARDBUS 125 #ifdef CS_PCMCIA_HACK_FOR_CARDBUS 126 /* 127 * XXX is there a generic way to know if it's a cardbus or not? 128 */ 129 sc->sc_cfgflags |= CFGFLG_CARDBUS_HACK; 130 #endif 131 132 error = cs_pcmcia_enable(sc); 133 if (error) 134 goto fail; 135 136 sc->sc_enable = cs_pcmcia_enable; 137 sc->sc_disable = cs_pcmcia_disable; 138 139 /* chip attach */ 140 error = cs_attach(sc, 0, 0, 0, 0); 141 if (error) 142 goto fail2; 143 144 cs_pcmcia_disable(sc); 145 psc->sc_state = CS_PCMCIA_ATTACHED; 146 return; 147 148 fail2: 149 cs_pcmcia_disable(sc); 150 fail: 151 pcmcia_function_unconfigure(pf); 152 } 153 154 static int 155 cs_pcmcia_detach(device_t self, int flags) 156 { 157 struct cs_pcmcia_softc *psc = (void *)self; 158 struct cs_softc *sc = &psc->sc_cs; 159 int error; 160 161 if (psc->sc_state != CS_PCMCIA_ATTACHED) 162 return (0); 163 164 error = cs_detach(sc); 165 if (error) 166 return (error); 167 168 pcmcia_function_unconfigure(psc->sc_pf); 169 170 return (0); 171 } 172 173 static int 174 cs_pcmcia_enable(struct cs_softc *sc) 175 { 176 struct cs_pcmcia_softc *psc = (void *)sc; 177 int error; 178 179 sc->sc_ih = pcmcia_intr_establish(psc->sc_pf, IPL_NET, cs_intr, sc); 180 if (!sc->sc_ih) 181 return (EIO); 182 183 error = pcmcia_function_enable(psc->sc_pf); 184 if (error) { 185 pcmcia_intr_disestablish(psc->sc_pf, sc->sc_ih); 186 sc->sc_ih = 0; 187 } 188 189 return (error); 190 } 191 192 static void 193 cs_pcmcia_disable(struct cs_softc *sc) 194 { 195 struct cs_pcmcia_softc *psc = (void *)sc; 196 197 pcmcia_function_disable(psc->sc_pf); 198 pcmcia_intr_disestablish(psc->sc_pf, sc->sc_ih); 199 sc->sc_ih = 0; 200 } 201