com_mca.c revision 1.5
1 /* $NetBSD: com_mca.c,v 1.5 2001/11/13 07:46:25 lukem 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 1.5 2001/11/13 07:46:25 lukem 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/types.h> 93 #include <sys/device.h> 94 95 #include <machine/intr.h> 96 #include <machine/bus.h> 97 98 #include <dev/ic/comreg.h> 99 #include <dev/ic/comvar.h> 100 101 #include <dev/mca/mcavar.h> 102 #include <dev/mca/mcadevs.h> 103 104 struct com_mca_softc { 105 struct com_softc sc_com; /* real "com" softc */ 106 107 /* MCA-specific goo. */ 108 void *sc_ih; /* interrupt handler */ 109 }; 110 111 int com_mca_probe __P((struct device *, struct cfdata *, void *)); 112 void com_mca_attach __P((struct device *, struct device *, void *)); 113 void com_mca_cleanup __P((void *)); 114 115 static int ibm_modem_getcfg __P((struct mca_attach_args *, int *, int *)); 116 static int neocom1_getcfg __P((struct mca_attach_args *, int *, int *)); 117 static int ibm_mpcom_getcfg __P((struct mca_attach_args *, int *, int *)); 118 119 struct cfattach com_mca_ca = { 120 sizeof(struct com_mca_softc), com_mca_probe, com_mca_attach 121 }; 122 123 static const struct com_mca_product { 124 u_int32_t cp_prodid; /* MCA product ID */ 125 const char *cp_name; /* device name */ 126 int (*cp_getcfg) __P((struct mca_attach_args *, int *iobase, int *irq)); 127 /* get device i/o base and irq */ 128 } com_mca_products[] = { 129 { MCA_PRODUCT_IBM_MOD, "IBM Internal Modem", ibm_modem_getcfg }, 130 { MCA_PRODUCT_NEOCOM1, "NeoTecH Single RS-232 Async. Adapter, SM110", 131 neocom1_getcfg }, 132 { MCA_PRODUCT_IBM_MPCOM,"IBM Multi-Protocol Communications Adapter", 133 ibm_mpcom_getcfg }, 134 { 0, NULL, NULL }, 135 }; 136 137 static const struct com_mca_product *com_mca_lookup __P((int)); 138 139 static const struct com_mca_product * 140 com_mca_lookup(ma_id) 141 int ma_id; 142 { 143 const struct com_mca_product *cpp; 144 145 for (cpp = com_mca_products; cpp->cp_name != NULL; cpp++) 146 if (cpp->cp_prodid == ma_id) 147 return (cpp); 148 149 return (NULL); 150 } 151 152 int 153 com_mca_probe(parent, match, aux) 154 struct device *parent; 155 struct cfdata *match; 156 void *aux; 157 { 158 struct mca_attach_args *ma = aux; 159 160 if (com_mca_lookup(ma->ma_id)) 161 return (1); 162 163 return (0); 164 } 165 166 void 167 com_mca_attach(parent, self, aux) 168 struct device *parent, *self; 169 void *aux; 170 { 171 struct com_mca_softc *isc = (void *)self; 172 struct com_softc *sc = &isc->sc_com; 173 int iobase, irq; 174 struct mca_attach_args *ma = aux; 175 const struct com_mca_product *cpp; 176 177 cpp = com_mca_lookup(ma->ma_id); 178 179 /* get iobase and irq */ 180 if ((*cpp->cp_getcfg)(ma, &iobase, &irq)) 181 return; 182 183 if (bus_space_map(ma->ma_iot, iobase, COM_NPORTS, 0, &sc->sc_ioh)) { 184 printf(": can't map i/o space\n"); 185 return; 186 } 187 188 sc->sc_frequency = COM_FREQ; 189 sc->sc_iot = ma->ma_iot; 190 sc->sc_iobase = iobase; 191 192 printf(" slot %d i/o %#x-%#x irq %d", ma->ma_slot + 1, 193 iobase, iobase + COM_NPORTS - 1, irq); 194 195 com_attach_subr(sc); 196 197 printf("%s: %s\n", sc->sc_dev.dv_xname, cpp->cp_name); 198 199 isc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_SERIAL, 200 comintr, sc); 201 if (isc->sc_ih == NULL) { 202 printf("%s: couldn't establish interrupt handler\n", 203 sc->sc_dev.dv_xname); 204 return; 205 } 206 207 /* 208 * Shutdown hook for buggy BIOSs that don't recognize the UART 209 * without a disabled FIFO. 210 * XXX is this necessary on MCA ? --- jdolecek 211 */ 212 if (shutdownhook_establish(com_mca_cleanup, sc) == NULL) 213 panic("com_mca_attach: could not establish shutdown hook"); 214 } 215 216 void 217 com_mca_cleanup(arg) 218 void *arg; 219 { 220 struct com_softc *sc = arg; 221 222 if (ISSET(sc->sc_hwflags, COM_HW_FIFO)) 223 bus_space_write_1(sc->sc_iot, sc->sc_ioh, com_fifo, 0); 224 } 225 226 /* map serial_X to iobase and irq */ 227 static const struct { 228 int iobase; 229 int irq; 230 } MCA_SERIAL[] = { 231 { 0x03f8, 4 }, /* SERIAL_1 */ 232 { 0x02f8, 3 }, /* SERIAL_2 */ 233 { 0x3220, 3 }, /* SERIAL_3 */ 234 { 0x3228, 3 }, /* SERIAL_4 */ 235 { 0x4220, 3 }, /* SERIAL_5 */ 236 { 0x4228, 3 }, /* SERIAL_6 */ 237 { 0x5220, 3 }, /* SERIAL_7 */ 238 { 0x5228, 3 }, /* SERIAL_8 */ 239 }; 240 241 /* 242 * Get config for IBM Internal Modem (ID 0xEDFF). This beast doesn't 243 * seem to support even AT commands, it's good as example for adding 244 * other stuff though. 245 */ 246 static int 247 ibm_modem_getcfg(ma, iobasep, irqp) 248 struct mca_attach_args *ma; 249 int *iobasep, *irqp; 250 { 251 int pos2; 252 int snum; 253 254 pos2 = mca_conf_read(ma->ma_mc, ma->ma_slot, 2); 255 256 /* 257 * POS register 2: (adf pos0) 258 * 7 6 5 4 3 2 1 0 259 * \__/ \__ enable: 0=adapter disabled, 1=adapter enabled 260 * \_____ Serial Configuration: XX=SERIAL_XX 261 */ 262 263 snum = (pos2 & 0x0e) >> 1; 264 265 *iobasep = MCA_SERIAL[snum].iobase; 266 *irqp = MCA_SERIAL[snum].irq; 267 268 return (0); 269 } 270 271 /* 272 * Get configuration for NeoTecH Single RS-232 Async. Adapter, SM110. 273 */ 274 static int 275 neocom1_getcfg(ma, iobasep, irqp) 276 struct mca_attach_args *ma; 277 int *iobasep, *irqp; 278 { 279 int pos2, pos3, pos4; 280 static const int neotech_irq[] = { 12, 9, 4, 3 }; 281 282 pos2 = mca_conf_read(ma->ma_mc, ma->ma_slot, 2); 283 pos3 = mca_conf_read(ma->ma_mc, ma->ma_slot, 3); 284 pos4 = mca_conf_read(ma->ma_mc, ma->ma_slot, 4); 285 286 /* 287 * POS register 2: (adf pos0) 288 * 7 6 5 4 3 2 1 0 289 * 1 \_/ \__ enable: 0=adapter disabled, 1=adapter enabled 290 * \____ IRQ: 11=3 10=4 01=9 00=12 291 * 292 * POS register 3: (adf pos1) 293 * 7 6 5 4 3 2 1 0 294 * \______/ 295 * \_________ I/O Address: bits 7-3 296 * 297 * POS register 4: (adf pos2) 298 * 7 6 5 4 3 2 1 0 299 * \_____________/ 300 * \__ I/O Address: bits 15-8 301 */ 302 303 *iobasep = (pos4 << 8) | (pos3 & 0xf8); 304 *irqp = neotech_irq[(pos2 & 0x06) >> 1]; 305 306 return (0); 307 } 308 309 /* 310 * Get configuration for IBM Multi-Protocol Communications Adapter. 311 * We only support SERIAL mode, bail out if set to SDLC or BISYNC. 312 */ 313 static int 314 ibm_mpcom_getcfg(ma, iobasep, irqp) 315 struct mca_attach_args *ma; 316 int *iobasep, *irqp; 317 { 318 int snum, pos2; 319 320 pos2 = mca_conf_read(ma->ma_mc, ma->ma_slot, 2); 321 322 /* 323 * For SERIAL mode, bit 4 has to be 0. 324 * 325 * POS register 2: (adf pos0) 326 * 7 6 5 4 3 2 1 0 327 * 0 \__/ \__ enable: 0=adapter disabled, 1=adapter enabled 328 * \_____ Serial Configuration: XX=SERIAL_XX 329 */ 330 331 if (pos2 & 0x10) { 332 printf(": not set to SERIAL mode, ignored\n"); 333 return (1); 334 } 335 336 snum = (pos2 & 0x0e) >> 1; 337 338 *iobasep = MCA_SERIAL[snum].iobase; 339 *irqp = MCA_SERIAL[snum].irq; 340 341 return (0); 342 } 343
Indexes created Fri Sep 26 20:09:58 GMT 2025