com_pcmcia.c revision 1.52
1 /* $NetBSD: com_pcmcia.c,v 1.52 2006/07/13 22:56:02 gdamore Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 2004 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Charles M. Hannum. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /*- 40 * Copyright (c) 1991 The Regents of the University of California. 41 * All rights reserved. 42 * 43 * Redistribution and use in source and binary forms, with or without 44 * modification, are permitted provided that the following conditions 45 * are met: 46 * 1. Redistributions of source code must retain the above copyright 47 * notice, this list of conditions and the following disclaimer. 48 * 2. Redistributions in binary form must reproduce the above copyright 49 * notice, this list of conditions and the following disclaimer in the 50 * documentation and/or other materials provided with the distribution. 51 * 3. Neither the name of the University nor the names of its contributors 52 * may be used to endorse or promote products derived from this software 53 * without specific prior written permission. 54 * 55 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 56 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 57 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 58 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 59 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 60 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 61 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 62 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 63 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 64 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 65 * SUCH DAMAGE. 66 * 67 * @(#)com.c 7.5 (Berkeley) 5/16/91 68 */ 69 70 #include <sys/cdefs.h> 71 __KERNEL_RCSID(0, "$NetBSD: com_pcmcia.c,v 1.52 2006/07/13 22:56:02 gdamore Exp $"); 72 73 #include <sys/param.h> 74 #include <sys/systm.h> 75 #include <sys/ioctl.h> 76 #include <sys/select.h> 77 #include <sys/tty.h> 78 #include <sys/proc.h> 79 #include <sys/user.h> 80 #include <sys/conf.h> 81 #include <sys/file.h> 82 #include <sys/uio.h> 83 #include <sys/kernel.h> 84 #include <sys/syslog.h> 85 #include <sys/device.h> 86 87 #include <machine/intr.h> 88 #include <machine/bus.h> 89 90 #include <dev/pcmcia/pcmciavar.h> 91 #include <dev/pcmcia/pcmciareg.h> 92 #include <dev/pcmcia/pcmciadevs.h> 93 94 #include <dev/ic/comreg.h> 95 #include <dev/ic/comvar.h> 96 97 #include <dev/isa/isareg.h> 98 99 int com_pcmcia_match(struct device *, struct cfdata *, void *); 100 int com_pcmcia_validate_config(struct pcmcia_config_entry *); 101 void com_pcmcia_attach(struct device *, struct device *, void *); 102 int com_pcmcia_detach(struct device *, int); 103 104 int com_pcmcia_enable(struct com_softc *); 105 void com_pcmcia_disable(struct com_softc *); 106 107 struct com_pcmcia_softc { 108 struct com_softc sc_com; /* real "com" softc */ 109 110 /* PCMCIA-specific goo */ 111 struct pcmcia_function *sc_pf; /* our PCMCIA function */ 112 void *sc_ih; /* interrupt handler */ 113 int sc_attached; 114 }; 115 116 CFATTACH_DECL(com_pcmcia, sizeof(struct com_pcmcia_softc), 117 com_pcmcia_match, com_pcmcia_attach, com_pcmcia_detach, com_activate); 118 119 static const struct pcmcia_product com_pcmcia_products[] = { 120 { PCMCIA_VENDOR_INVALID, PCMCIA_PRODUCT_INVALID, 121 PCMCIA_CIS_MEGAHERTZ_XJ2288 }, 122 }; 123 static const size_t com_pcmcia_nproducts = 124 sizeof(com_pcmcia_products) / sizeof(com_pcmcia_products[0]); 125 126 int 127 com_pcmcia_match(parent, match, aux) 128 struct device *parent; 129 struct cfdata *match; 130 void *aux; 131 { 132 int comportmask; 133 struct pcmcia_attach_args *pa = aux; 134 struct pcmcia_config_entry *cfe; 135 136 /* 1. Does it claim to be a serial device? */ 137 if (pa->pf->function == PCMCIA_FUNCTION_SERIAL) 138 return 1; 139 140 /* 2. Does it have all four 'standard' port ranges? */ 141 comportmask = 0; 142 SIMPLEQ_FOREACH(cfe, &pa->pf->cfe_head, cfe_list) { 143 switch (cfe->iospace[0].start) { 144 case IO_COM1: 145 comportmask |= 1; 146 break; 147 case IO_COM2: 148 comportmask |= 2; 149 break; 150 case IO_COM3: 151 comportmask |= 4; 152 break; 153 case IO_COM4: 154 comportmask |= 8; 155 break; 156 } 157 } 158 159 if (comportmask == 15) 160 return 1; 161 162 /* 3. Is this a card we know about? */ 163 if (pcmcia_product_lookup(pa, com_pcmcia_products, com_pcmcia_nproducts, 164 sizeof(com_pcmcia_products[0]), NULL)) 165 return 1; 166 167 return 0; 168 } 169 170 int 171 com_pcmcia_validate_config(cfe) 172 struct pcmcia_config_entry *cfe; 173 { 174 if (cfe->iftype != PCMCIA_IFTYPE_IO || 175 cfe->num_iospace != 1) 176 return (EINVAL); 177 /* Some cards have a memory space, but we don't use it. */ 178 cfe->num_memspace = 0; 179 return (0); 180 } 181 182 void 183 com_pcmcia_attach(parent, self, aux) 184 struct device *parent, *self; 185 void *aux; 186 { 187 struct com_pcmcia_softc *psc = (void *) self; 188 struct com_softc *sc = &psc->sc_com; 189 struct pcmcia_attach_args *pa = aux; 190 struct pcmcia_config_entry *cfe; 191 int error; 192 193 psc->sc_pf = pa->pf; 194 195 error = pcmcia_function_configure(pa->pf, com_pcmcia_validate_config); 196 if (error) { 197 aprint_error("%s: configure failed, error=%d\n", self->dv_xname, 198 error); 199 return; 200 } 201 202 cfe = pa->pf->cfe; 203 COM_INIT_REGS(sc->sc_regs, cfe->iospace[0].handle.iot, 204 cfe->iospace[0].handle.ioh, -1); 205 206 error = com_pcmcia_enable(sc); 207 if (error) 208 goto fail; 209 210 sc->enabled = 1; 211 212 sc->sc_frequency = COM_FREQ; 213 214 sc->enable = com_pcmcia_enable; 215 sc->disable = com_pcmcia_disable; 216 217 aprint_normal("%s", self->dv_xname); 218 219 com_attach_subr(sc); 220 221 sc->enabled = 0; 222 223 psc->sc_attached = 1; 224 com_pcmcia_disable(sc); 225 return; 226 227 fail: 228 pcmcia_function_unconfigure(pa->pf); 229 } 230 231 int 232 com_pcmcia_detach(self, flags) 233 struct device *self; 234 int flags; 235 { 236 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) self; 237 int error; 238 239 if (!psc->sc_attached) 240 return (0); 241 242 if ((error = com_detach(self, flags)) != 0) 243 return error; 244 245 pcmcia_function_unconfigure(psc->sc_pf); 246 return (0); 247 } 248 249 int 250 com_pcmcia_enable(sc) 251 struct com_softc *sc; 252 { 253 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 254 struct pcmcia_function *pf = psc->sc_pf; 255 int error; 256 257 /* establish the interrupt. */ 258 psc->sc_ih = pcmcia_intr_establish(pf, IPL_SERIAL, comintr, sc); 259 if (psc->sc_ih == NULL) { 260 printf("%s: couldn't establish interrupt\n", 261 sc->sc_dev.dv_xname); 262 return (1); 263 } 264 265 if ((error = pcmcia_function_enable(pf)) != 0) { 266 pcmcia_intr_disestablish(pf, psc->sc_ih); 267 psc->sc_ih = 0; 268 return (error); 269 } 270 271 if ((psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) || 272 (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556) || 273 (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556INT)) { 274 int reg; 275 276 /* turn off the ethernet-disable bit */ 277 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION); 278 if (reg & 0x08) { 279 reg &= ~0x08; 280 pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); 281 } 282 } 283 284 return (0); 285 } 286 287 void 288 com_pcmcia_disable(sc) 289 struct com_softc *sc; 290 { 291 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 292 293 pcmcia_function_disable(psc->sc_pf); 294 pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih); 295 psc->sc_ih = 0; 296 } 297
Indexes created Fri Sep 26 20:09:58 GMT 2025