com_mca.c revision 1.8
1 /* $NetBSD: com_mca.c,v 1.8 2002/09/30 21:36:45 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 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. All advertising materials mentioning features or use of this software 52 * must display the following acknowledgement: 53 * This product includes software developed by the University of 54 * California, Berkeley and its contributors. 55 * 4. Neither the name of the University nor the names of its contributors 56 * may be used to endorse or promote products derived from this software 57 * without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 * 71 * @(#)com.c 7.5 (Berkeley) 5/16/91 72 */ 73 74 /* 75 * This driver attaches serial port boards and internal modems. 76 */ 77 78 #include <sys/cdefs.h> 79 __KERNEL_RCSID(0, "$NetBSD: com_mca.c,v 1.8 2002/09/30 21:36:45 thorpej Exp $"); 80 81 #include <sys/param.h> 82 #include <sys/systm.h> 83 #include <sys/ioctl.h> 84 #include <sys/select.h> 85 #include <sys/tty.h> 86 #include <sys/proc.h> 87 #include <sys/user.h> 88 #include <sys/file.h> 89 #include <sys/uio.h> 90 #include <sys/kernel.h> 91 #include <sys/syslog.h> 92 #include <sys/device.h> 93 94 #include <machine/intr.h> 95 #include <machine/bus.h> 96 97 #include <dev/ic/comreg.h> 98 #include <dev/ic/comvar.h> 99 100 #include <dev/mca/mcavar.h> 101 #include <dev/mca/mcadevs.h> 102 103 struct com_mca_softc { 104 struct com_softc sc_com; /* real "com" softc */ 105 106 /* MCA-specific goo. */ 107 void *sc_ih; /* interrupt handler */ 108 }; 109 110 int com_mca_probe __P((struct device *, struct cfdata *, void *)); 111 void com_mca_attach __P((struct device *, struct device *, void *)); 112 void com_mca_cleanup __P((void *)); 113 114 static int ibm_modem_getcfg __P((struct mca_attach_args *, int *, int *)); 115 static int neocom1_getcfg __P((struct mca_attach_args *, int *, int *)); 116 static int ibm_mpcom_getcfg __P((struct mca_attach_args *, int *, int *)); 117 118 CFATTACH_DECL(com_mca, sizeof(struct com_mca_softc), 119 com_mca_probe, com_mca_attach, NULL, NULL) 120 121 static const struct com_mca_product { 122 u_int32_t cp_prodid; /* MCA product ID */ 123 const char *cp_name; /* device name */ 124 int (*cp_getcfg) __P((struct mca_attach_args *, int *iobase, int *irq)); 125 /* get device i/o base and irq */ 126 } com_mca_products[] = { 127 { MCA_PRODUCT_IBM_MOD, "IBM Internal Modem", ibm_modem_getcfg }, 128 { MCA_PRODUCT_NEOCOM1, "NeoTecH Single RS-232 Async. Adapter, SM110", 129 neocom1_getcfg }, 130 { MCA_PRODUCT_IBM_MPCOM,"IBM Multi-Protocol Communications Adapter", 131 ibm_mpcom_getcfg }, 132 { 0, NULL, NULL }, 133 }; 134 135 static const struct com_mca_product *com_mca_lookup __P((int)); 136 137 static const struct com_mca_product * 138 com_mca_lookup(ma_id) 139 int ma_id; 140 { 141 const struct com_mca_product *cpp; 142 143 for (cpp = com_mca_products; cpp->cp_name != NULL; cpp++) 144 if (cpp->cp_prodid == ma_id) 145 return (cpp); 146 147 return (NULL); 148 } 149 150 int 151 com_mca_probe(parent, match, aux) 152 struct device *parent; 153 struct cfdata *match; 154 void *aux; 155 { 156 struct mca_attach_args *ma = aux; 157 158 if (com_mca_lookup(ma->ma_id)) 159 return (1); 160 161 return (0); 162 } 163 164 void 165 com_mca_attach(parent, self, aux) 166 struct device *parent, *self; 167 void *aux; 168 { 169 struct com_mca_softc *isc = (void *)self; 170 struct com_softc *sc = &isc->sc_com; 171 int iobase, irq; 172 struct mca_attach_args *ma = aux; 173 const struct com_mca_product *cpp; 174 175 cpp = com_mca_lookup(ma->ma_id); 176 177 /* get iobase and irq */ 178 if ((*cpp->cp_getcfg)(ma, &iobase, &irq)) 179 return; 180 181 if (bus_space_map(ma->ma_iot, iobase, COM_NPORTS, 0, &sc->sc_ioh)) { 182 printf(": can't map i/o space\n"); 183 return; 184 } 185 186 sc->sc_frequency = COM_FREQ; 187 sc->sc_iot = ma->ma_iot; 188 sc->sc_iobase = iobase; 189 190 printf(" slot %d i/o %#x-%#x irq %d", ma->ma_slot + 1, 191 iobase, iobase + COM_NPORTS - 1, irq); 192 193 com_attach_subr(sc); 194 195 printf("%s: %s\n", sc->sc_dev.dv_xname, cpp->cp_name); 196 197 isc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_SERIAL, 198 comintr, sc); 199 if (isc->sc_ih == NULL) { 200 printf("%s: couldn't establish interrupt handler\n", 201 sc->sc_dev.dv_xname); 202 return; 203 } 204 205 /* 206 * Shutdown hook for buggy BIOSs that don't recognize the UART 207 * without a disabled FIFO. 208 * XXX is this necessary on MCA ? --- jdolecek 209 */ 210 if (shutdownhook_establish(com_mca_cleanup, sc) == NULL) 211 panic("com_mca_attach: could not establish shutdown hook"); 212 } 213 214 void 215 com_mca_cleanup(arg) 216 void *arg; 217 { 218 struct com_softc *sc = arg; 219 220 if (ISSET(sc->sc_hwflags, COM_HW_FIFO)) 221 bus_space_write_1(sc->sc_iot, sc->sc_ioh, com_fifo, 0); 222 } 223 224 /* map serial_X to iobase and irq */ 225 static const struct { 226 int iobase; 227 int irq; 228 } MCA_SERIAL[] = { 229 { 0x03f8, 4 }, /* SERIAL_1 */ 230 { 0x02f8, 3 }, /* SERIAL_2 */ 231 { 0x3220, 3 }, /* SERIAL_3 */ 232 { 0x3228, 3 }, /* SERIAL_4 */ 233 { 0x4220, 3 }, /* SERIAL_5 */ 234 { 0x4228, 3 }, /* SERIAL_6 */ 235 { 0x5220, 3 }, /* SERIAL_7 */ 236 { 0x5228, 3 }, /* SERIAL_8 */ 237 }; 238 239 /* 240 * Get config for IBM Internal Modem (ID 0xEDFF). This beast doesn't 241 * seem to support even AT commands, it's good as example for adding 242 * other stuff though. 243 */ 244 static int 245 ibm_modem_getcfg(ma, iobasep, irqp) 246 struct mca_attach_args *ma; 247 int *iobasep, *irqp; 248 { 249 int pos2; 250 int snum; 251 252 pos2 = mca_conf_read(ma->ma_mc, ma->ma_slot, 2); 253 254 /* 255 * POS register 2: (adf pos0) 256 * 7 6 5 4 3 2 1 0 257 * \__/ \__ enable: 0=adapter disabled, 1=adapter enabled 258 * \_____ Serial Configuration: XX=SERIAL_XX 259 */ 260 261 snum = (pos2 & 0x0e) >> 1; 262 263 *iobasep = MCA_SERIAL[snum].iobase; 264 *irqp = MCA_SERIAL[snum].irq; 265 266 return (0); 267 } 268 269 /* 270 * Get configuration for NeoTecH Single RS-232 Async. Adapter, SM110. 271 */ 272 static int 273 neocom1_getcfg(ma, iobasep, irqp) 274 struct mca_attach_args *ma; 275 int *iobasep, *irqp; 276 { 277 int pos2, pos3, pos4; 278 static const int neotech_irq[] = { 12, 9, 4, 3 }; 279 280 pos2 = mca_conf_read(ma->ma_mc, ma->ma_slot, 2); 281 pos3 = mca_conf_read(ma->ma_mc, ma->ma_slot, 3); 282 pos4 = mca_conf_read(ma->ma_mc, ma->ma_slot, 4); 283 284 /* 285 * POS register 2: (adf pos0) 286 * 7 6 5 4 3 2 1 0 287 * 1 \_/ \__ enable: 0=adapter disabled, 1=adapter enabled 288 * \____ IRQ: 11=3 10=4 01=9 00=12 289 * 290 * POS register 3: (adf pos1) 291 * 7 6 5 4 3 2 1 0 292 * \______/ 293 * \_________ I/O Address: bits 7-3 294 * 295 * POS register 4: (adf pos2) 296 * 7 6 5 4 3 2 1 0 297 * \_____________/ 298 * \__ I/O Address: bits 15-8 299 */ 300 301 *iobasep = (pos4 << 8) | (pos3 & 0xf8); 302 *irqp = neotech_irq[(pos2 & 0x06) >> 1]; 303 304 return (0); 305 } 306 307 /* 308 * Get configuration for IBM Multi-Protocol Communications Adapter. 309 * We only support SERIAL mode, bail out if set to SDLC or BISYNC. 310 */ 311 static int 312 ibm_mpcom_getcfg(ma, iobasep, irqp) 313 struct mca_attach_args *ma; 314 int *iobasep, *irqp; 315 { 316 int snum, pos2; 317 318 pos2 = mca_conf_read(ma->ma_mc, ma->ma_slot, 2); 319 320 /* 321 * For SERIAL mode, bit 4 has to be 0. 322 * 323 * POS register 2: (adf pos0) 324 * 7 6 5 4 3 2 1 0 325 * 0 \__/ \__ enable: 0=adapter disabled, 1=adapter enabled 326 * \_____ Serial Configuration: XX=SERIAL_XX 327 */ 328 329 if (pos2 & 0x10) { 330 printf(": not set to SERIAL mode, ignored\n"); 331 return (1); 332 } 333 334 snum = (pos2 & 0x0e) >> 1; 335 336 *iobasep = MCA_SERIAL[snum].iobase; 337 *irqp = MCA_SERIAL[snum].irq; 338 339 return (0); 340 } 341
Indexes created Fri Sep 26 20:09:58 GMT 2025