1 /* $NetBSD: adb.c,v 1.24 2007/11/07 19:47:00 garbled Exp $ */ 2 3 /*- 4 * Copyright (C) 1994 Bradley A. Grantham 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 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Bradley A. Grantham. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: adb.c,v 1.24 2007/11/07 19:47:00 garbled Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/device.h> 38 #include <sys/fcntl.h> 39 #include <sys/poll.h> 40 #include <sys/select.h> 41 #include <sys/proc.h> 42 #include <sys/signalvar.h> 43 #include <sys/systm.h> 44 45 #include <machine/bus.h> 46 #include <machine/autoconf.h> 47 #include <machine/pio.h> 48 49 #include <macppc/dev/adbvar.h> 50 #include <macppc/dev/akbdvar.h> 51 #include <macppc/dev/pm_direct.h> 52 #include <macppc/dev/viareg.h> 53 54 #include <dev/clock_subr.h> 55 #include <dev/ofw/openfirm.h> 56 57 #include "aed.h" 58 #include "apm.h" 59 60 /* 61 * Function declarations. 62 */ 63 static int adbmatch __P((struct device *, struct cfdata *, void *)); 64 static void adbattach __P((struct device *, struct device *, void *)); 65 static int adbprint __P((void *, const char *)); 66 static void adb_todr_init(void); 67 68 /* 69 * Global variables. 70 */ 71 int adb_polling = 0; /* Are we polling? (Debugger mode) */ 72 int adb_initted = 0; /* adb_init() has completed successfully */ 73 #ifdef ADB_DEBUG 74 int adb_debug = 0; /* Output debugging messages */ 75 #endif /* ADB_DEBUG */ 76 77 /* 78 * Driver definition. 79 */ 80 CFATTACH_DECL(adb, sizeof(struct adb_softc), 81 adbmatch, adbattach, NULL, NULL); 82 83 static int 84 adbmatch(parent, cf, aux) 85 struct device *parent; 86 struct cfdata *cf; 87 void *aux; 88 { 89 struct confargs *ca = aux; 90 91 if (ca->ca_nreg < 8) 92 return 0; 93 94 if (ca->ca_nintr < 4) 95 return 0; 96 97 if (strcmp(ca->ca_name, "via-cuda") == 0) 98 return 1; 99 100 if (strcmp(ca->ca_name, "via-pmu") == 0) 101 return 1; 102 103 return 0; 104 } 105 106 static void 107 adbattach(parent, self, aux) 108 struct device *parent, *self; 109 void *aux; 110 { 111 struct adb_softc *sc = (struct adb_softc *)self; 112 struct confargs *ca = aux; 113 int irq = ca->ca_intr[0]; 114 int node; 115 ADBDataBlock adbdata; 116 struct adb_attach_args aa_args; 117 int totaladbs; 118 int adbindex, adbaddr, adb_node; 119 120 extern volatile u_char *Via1Base; 121 122 ca->ca_reg[0] += ca->ca_baseaddr; 123 124 sc->sc_regbase = mapiodev(ca->ca_reg[0], ca->ca_reg[1]); 125 Via1Base = sc->sc_regbase; 126 127 if (strcmp(ca->ca_name, "via-cuda") == 0) 128 adbHardware = ADB_HW_CUDA; 129 else if (strcmp(ca->ca_name, "via-pmu") == 0) 130 adbHardware = ADB_HW_PMU; 131 132 node = of_getnode_byname(OF_parent(ca->ca_node), "extint-gpio1"); 133 if (node) 134 OF_getprop(node, "interrupts", &irq, 4); 135 136 printf(" irq %d: ", irq); 137 138 adb_polling = 1; 139 adb_node = of_getnode_byname(ca->ca_node, "adb"); 140 if (adb_node) 141 ADBReInit(); 142 143 switch (adbHardware) { 144 case ADB_HW_CUDA: 145 intr_establish(irq, IST_LEVEL, IPL_TTY, adb_intr_cuda, sc); 146 break; 147 case ADB_HW_PMU: 148 intr_establish(irq, IST_LEVEL, IPL_TTY, pm_intr, sc); 149 pm_init(); 150 break; 151 } 152 153 adb_todr_init(); 154 155 #if NAPM > 0 156 /* Magic for signalling the apm driver to match. */ 157 aa_args.origaddr = ADBADDR_APM; 158 aa_args.adbaddr = ADBADDR_APM; 159 aa_args.handler_id = ADBADDR_APM; 160 161 (void)config_found(self, &aa_args, NULL); 162 #endif 163 164 /* 165 * see if we're supposed to have an ADB bus 166 * since some PowerBooks don't have one and their PMUs barf on ADB 167 * commands we bail here if there's no adb node 168 */ 169 if (!adb_node) 170 return; 171 172 #ifdef ADB_DEBUG 173 if (adb_debug) 174 printf("adb: done with ADBReInit\n"); 175 #endif 176 totaladbs = CountADBs(); 177 178 printf("%d targets\n", totaladbs); 179 180 #if NAED > 0 181 /* ADB event device for compatibility */ 182 aa_args.origaddr = 0; 183 aa_args.adbaddr = 0; 184 aa_args.handler_id = 0; 185 (void)config_found(self, &aa_args, adbprint); 186 #endif 187 188 /* for each ADB device */ 189 for (adbindex = 1; adbindex <= totaladbs; adbindex++) { 190 /* Get the ADB information */ 191 adbaddr = GetIndADB(&adbdata, adbindex); 192 193 aa_args.origaddr = adbdata.origADBAddr; 194 aa_args.adbaddr = adbaddr; 195 aa_args.handler_id = adbdata.devType; 196 197 (void)config_found(self, &aa_args, adbprint); 198 } 199 200 if (adbHardware == ADB_HW_CUDA) 201 adb_cuda_autopoll(); 202 adb_polling = 0; 203 204 } 205 206 int 207 adbprint(args, name) 208 void *args; 209 const char *name; 210 { 211 struct adb_attach_args *aa_args = (struct adb_attach_args *)args; 212 int rv = UNCONF; 213 214 if (name) { /* no configured device matched */ 215 rv = UNSUPP; /* most ADB device types are unsupported */ 216 217 /* print out what kind of ADB device we have found */ 218 aprint_normal("%s addr %d: ", name, aa_args->adbaddr); 219 switch(aa_args->origaddr) { 220 #ifdef DIAGNOSTIC 221 case 0: 222 aprint_normal("ADB event device"); 223 rv = UNCONF; 224 break; 225 case ADBADDR_SECURE: 226 aprint_normal("security dongle (%d)", 227 aa_args->handler_id); 228 break; 229 #endif 230 case ADBADDR_MAP: 231 aprint_normal("mapped device (%d)", 232 aa_args->handler_id); 233 rv = UNCONF; 234 break; 235 case ADBADDR_REL: 236 aprint_normal("relative positioning device (%d)", 237 aa_args->handler_id); 238 rv = UNCONF; 239 break; 240 #ifdef DIAGNOSTIC 241 case ADBADDR_ABS: 242 switch (aa_args->handler_id) { 243 case ADB_ARTPAD: 244 aprint_normal("WACOM ArtPad II"); 245 break; 246 default: 247 aprint_normal("absolute positioning device (%d)", 248 aa_args->handler_id); 249 break; 250 } 251 break; 252 case ADBADDR_DATATX: 253 aprint_normal("data transfer device (modem?) (%d)", 254 aa_args->handler_id); 255 break; 256 case ADBADDR_MISC: 257 switch (aa_args->handler_id) { 258 case ADB_POWERKEY: 259 aprint_normal("Sophisticated Circuits PowerKey"); 260 break; 261 default: 262 aprint_normal("misc. device (remote control?) (%d)", 263 aa_args->handler_id); 264 break; 265 } 266 break; 267 default: 268 aprint_normal("unknown type device, (handler %d)", 269 aa_args->handler_id); 270 break; 271 #endif /* DIAGNOSTIC */ 272 } 273 } else /* a device matched and was configured */ 274 aprint_normal(" addr %d: ", aa_args->adbaddr); 275 276 return rv; 277 } 278 279 #define DIFF19041970 2082844800 280 281 static int 282 adb_todr_get(todr_chip_handle_t tch, volatile struct timeval *tvp) 283 { 284 unsigned long sec; 285 286 if (adb_read_date_time(&sec) != 0) 287 return EIO; 288 tvp->tv_sec = sec - DIFF19041970; 289 tvp->tv_usec = 0; 290 return 0; 291 } 292 293 static int 294 adb_todr_set(todr_chip_handle_t tch, volatile struct timeval *tvp) 295 { 296 unsigned long sec; 297 298 sec = tvp->tv_sec + DIFF19041970; 299 return adb_set_date_time(sec) ? EIO : 0; 300 } 301 302 void 303 adb_todr_init(void) 304 { 305 static struct todr_chip_handle tch = { 306 .todr_gettime = adb_todr_get, 307 .todr_settime = adb_todr_set 308 }; 309 310 todr_attach(&tch); 311 } 312