com_pcmcia.c revision 1.5
1 /* $NetBSD: com_pcmcia.c,v 1.5 1998/06/21 18:41:07 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1993, 1994, 1995, 1996 5 * Charles M. Hannum. All rights reserved. 6 * Copyright (c) 1991 The Regents of the University of California. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the University of 20 * California, Berkeley and its contributors. 21 * 4. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * @(#)com.c 7.5 (Berkeley) 5/16/91 38 */ 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/ioctl.h> 43 #include <sys/select.h> 44 #include <sys/tty.h> 45 #include <sys/proc.h> 46 #include <sys/user.h> 47 #include <sys/conf.h> 48 #include <sys/file.h> 49 #include <sys/uio.h> 50 #include <sys/kernel.h> 51 #include <sys/syslog.h> 52 #include <sys/types.h> 53 #include <sys/device.h> 54 55 #include <machine/intr.h> 56 #include <machine/bus.h> 57 58 #include <dev/pcmcia/pcmciavar.h> 59 #include <dev/pcmcia/pcmciareg.h> 60 61 #include <dev/ic/comreg.h> 62 #include <dev/ic/comvar.h> 63 64 #include <dev/isa/isareg.h> 65 66 #define PCMCIA_MANUFACTURER_3COM 0x101 67 #define PCMCIA_PRODUCT_3COM_3C562 0x562 68 69 #define PCMCIA_MANUFACTURER_MOTOROLA 0x109 70 #define PCMCIA_PRODUCT_MOTOROLA_POWER144 0x105 71 72 #define PCMCIA_MANUFACTURER_IBM 0xa4 73 #define PCMCIA_PRODUCT_IBM_HOME_AND_AWAY 0x2e 74 75 struct com_dev { 76 char *name; 77 int manufacturer; 78 int product; 79 char *cis1_info[4]; 80 }; 81 82 static struct com_dev com_devs[] = { 83 { "3Com 3C562 Modem", 84 PCMCIA_MANUFACTURER_3COM, PCMCIA_PRODUCT_3COM_3C562, 85 { NULL, NULL, NULL, NULL } }, 86 { "Motorola Power 14.4 Modem", 87 PCMCIA_MANUFACTURER_MOTOROLA, PCMCIA_PRODUCT_MOTOROLA_POWER144, 88 { NULL, NULL, NULL, NULL } }, 89 { "IBM Home and Away Modem", 90 PCMCIA_MANUFACTURER_IBM, PCMCIA_PRODUCT_IBM_HOME_AND_AWAY, 91 { NULL, NULL, NULL, NULL } }, 92 { "Megahertz XJ2288 Modem", 93 0xffffffff, 0xffff, 94 { "MEGAHERTZ", "XJ2288", NULL, NULL } } 95 }; 96 97 static struct com_dev generic = { 98 "Generic Modem", 99 0xffffffff, 0xffffffff, 100 { NULL, NULL, NULL, NULL } 101 }; 102 103 static int com_devs_size = sizeof(com_devs) / sizeof(com_devs[0]); 104 static struct com_dev *com_dev_match __P((struct pcmcia_card *)); 105 106 int com_pcmcia_match __P((struct device *, struct cfdata *, void *)); 107 void com_pcmcia_attach __P((struct device *, struct device *, void *)); 108 void com_pcmcia_cleanup __P((void *)); 109 110 int com_pcmcia_enable __P((struct com_softc *)); 111 void com_pcmcia_disable __P((struct com_softc *)); 112 int com_pcmcia_enable1 __P((struct com_softc *)); 113 void com_pcmcia_disable1 __P((struct com_softc *)); 114 115 struct com_pcmcia_softc { 116 struct com_softc sc_com; /* real "com" softc */ 117 118 /* PCMCIA-specific goo */ 119 struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */ 120 int sc_io_window; /* our i/o window */ 121 struct pcmcia_function *sc_pf; /* our PCMCIA function */ 122 void *sc_ih; /* interrupt handler */ 123 }; 124 125 struct cfattach com_pcmcia_ca = { 126 sizeof(struct com_pcmcia_softc), com_pcmcia_match, com_pcmcia_attach 127 }; 128 129 static struct com_dev * 130 com_dev_match(card) 131 struct pcmcia_card *card; 132 { 133 int i; 134 135 /* 1. check our table */ 136 for (i = 0; i < com_devs_size; i++) { 137 if (com_devs[i].manufacturer != -1) { 138 /* manufacturer/product match */ 139 if (com_devs[i].manufacturer == card->manufacturer && 140 com_devs[i].product == card->product) 141 return &com_devs[i]; 142 } else { 143 /* cis strings match */ 144 int j; 145 146 for (j = 0; j < 4; j++) 147 if (com_devs[i].cis1_info[j] && 148 strcmp(com_devs[i].cis1_info[j], 149 card->cis1_info[j])) 150 break; 151 if (j == 4) 152 return &com_devs[i]; 153 } 154 } 155 156 157 /* 158 * 2. Be selective about devices by checking for the word modem in 159 * the cis strings. 160 */ 161 for (i = 0; i < 4; i++) 162 if (card->cis1_info[i] && 163 pmatch("*[Mm][Oo][Dd][Ee][Mm]*", 164 card->cis1_info[i], NULL) > 0) 165 return &generic; 166 167 return NULL; 168 } 169 170 171 int 172 com_pcmcia_match(parent, match, aux) 173 struct device *parent; 174 struct cfdata *match; 175 void *aux; 176 { 177 struct pcmcia_attach_args *pa = aux; 178 struct pcmcia_config_entry *cfe; 179 180 /* find a cfe we can use (if it matches a standard COM port) */ 181 for (cfe = pa->pf->cfe_head.sqh_first; cfe; 182 cfe = cfe->cfe_list.sqe_next) 183 if (cfe->iospace[0].start == IO_COM1 || 184 cfe->iospace[0].start == IO_COM2 || 185 cfe->iospace[0].start == IO_COM3 || 186 cfe->iospace[0].start == IO_COM4) 187 break; 188 189 /* No appropriate cfe, bail out */ 190 if (cfe == NULL) 191 return 0; 192 193 /* 194 * We found a cfe at a standard com port location; check if it 195 * is really a modem/serial device 196 */ 197 if (com_dev_match(pa->card) == NULL) 198 return 0; 199 200 return 1; 201 } 202 203 void 204 com_pcmcia_attach(parent, self, aux) 205 struct device *parent, *self; 206 void *aux; 207 { 208 struct com_pcmcia_softc *psc = (void *) self; 209 struct com_softc *sc = &psc->sc_com; 210 struct pcmcia_attach_args *pa = aux; 211 struct pcmcia_config_entry *cfe; 212 struct com_dev *comdev; 213 214 psc->sc_pf = pa->pf; 215 216 /* find a cfe we can use */ 217 218 for (cfe = pa->pf->cfe_head.sqh_first; cfe; 219 cfe = cfe->cfe_list.sqe_next) { 220 if (cfe->num_memspace != 0) 221 continue; 222 223 if (cfe->num_iospace != 1) 224 continue; 225 226 if (cfe->iomask == 3) { 227 if (pcmcia_io_alloc(pa->pf, 0, cfe->iospace[0].length, 228 cfe->iospace[0].length, &psc->sc_pcioh)) { 229 continue; 230 } 231 } else { 232 if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start, 233 cfe->iospace[0].length, 0, &psc->sc_pcioh)) { 234 continue; 235 } 236 } 237 238 break; 239 } 240 241 if (!cfe) { 242 printf(": can't allocate i/o space\n"); 243 return; 244 } 245 246 sc->sc_iot = psc->sc_pcioh.iot; 247 sc->sc_ioh = psc->sc_pcioh.ioh; 248 249 /* Enable the card. */ 250 pcmcia_function_init(pa->pf, cfe); 251 if (com_pcmcia_enable1(sc)) 252 printf(": function enable failed\n"); 253 254 sc->enabled = 1; 255 256 /* map in the io space */ 257 258 if (pcmcia_io_map(pa->pf, ((cfe->flags & PCMCIA_CFE_IO16) ? 259 PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8), 0, psc->sc_pcioh.size, 260 &psc->sc_pcioh, &psc->sc_io_window)) { 261 printf(": can't map i/o space\n"); 262 return; 263 } 264 265 sc->sc_iobase = -1; 266 sc->sc_frequency = COM_FREQ; 267 268 sc->enable = com_pcmcia_enable; 269 sc->disable = com_pcmcia_disable; 270 271 if ((comdev = com_dev_match(pa->card)) != NULL) 272 printf(": %s", comdev->name); 273 274 com_attach_subr(sc); 275 276 sc->enabled = 0; 277 278 com_pcmcia_disable1(sc); 279 } 280 281 int 282 com_pcmcia_enable(sc) 283 struct com_softc *sc; 284 { 285 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 286 struct pcmcia_function *pf = psc->sc_pf; 287 288 /* establish the interrupt. */ 289 psc->sc_ih = pcmcia_intr_establish(pf, IPL_SERIAL, comintr, sc); 290 if (psc->sc_ih == NULL) { 291 printf("%s: couldn't establish interrupt\n", 292 sc->sc_dev.dv_xname); 293 return (1); 294 } 295 return com_pcmcia_enable1(sc); 296 } 297 298 int 299 com_pcmcia_enable1(sc) 300 struct com_softc *sc; 301 { 302 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 303 struct pcmcia_function *pf = psc->sc_pf; 304 int ret; 305 306 if ((ret = pcmcia_function_enable(pf))) 307 return(ret); 308 309 if (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) { 310 int reg; 311 312 /* turn off the ethernet-disable bit */ 313 314 reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION); 315 if (reg & 0x08) { 316 reg &= ~0x08; 317 pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg); 318 } 319 } 320 321 return(ret); 322 } 323 324 void 325 com_pcmcia_disable(sc) 326 struct com_softc *sc; 327 { 328 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 329 330 com_pcmcia_disable1(sc); 331 pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih); 332 } 333 334 void 335 com_pcmcia_disable1(sc) 336 struct com_softc *sc; 337 { 338 struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc; 339 340 pcmcia_function_disable(psc->sc_pf); 341 } 342
Indexes created Sat Sep 27 22:09:54 GMT 2025