1 /* $NetBSD: adb.c,v 1.27 2009/03/14 21:04:11 dsl 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 1.27 2009/03/14 21:04:11 dsl 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(struct device *, struct cfdata *, void *); 64 static void adbattach(struct device *, struct device *, void *); 65 static int adbprint(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(struct device *parent, struct cfdata *cf, void *aux) 85 { 86 struct confargs *ca = aux; 87 88 if (ca->ca_nreg < 8) 89 return 0; 90 91 if (ca->ca_nintr < 4) 92 return 0; 93 94 if (strcmp(ca->ca_name, "via-cuda") == 0) 95 return 1; 96 97 if (strcmp(ca->ca_name, "via-pmu") == 0) 98 return 1; 99 100 return 0; 101 } 102 103 static void 104 adbattach(struct device *parent, struct device *self, void *aux) 105 { 106 struct adb_softc *sc = (struct adb_softc *)self; 107 struct confargs *ca = aux; 108 int irq = ca->ca_intr[0]; 109 int node; 110 ADBDataBlock adbdata; 111 struct adb_attach_args aa_args; 112 int totaladbs; 113 int adbindex, adbaddr, adb_node; 114 115 extern volatile u_char *Via1Base; 116 117 ca->ca_reg[0] += ca->ca_baseaddr; 118 119 sc->sc_regbase = mapiodev(ca->ca_reg[0], ca->ca_reg[1]); 120 Via1Base = sc->sc_regbase; 121 122 if (strcmp(ca->ca_name, "via-cuda") == 0) 123 adbHardware = ADB_HW_CUDA; 124 else if (strcmp(ca->ca_name, "via-pmu") == 0) 125 adbHardware = ADB_HW_PMU; 126 127 node = of_getnode_byname(OF_parent(ca->ca_node), "extint-gpio1"); 128 if (node) 129 OF_getprop(node, "interrupts", &irq, 4); 130 131 printf(" irq %d: ", irq); 132 133 adb_polling = 1; 134 adb_node = of_getnode_byname(ca->ca_node, "adb"); 135 if (adb_node) 136 ADBReInit(); 137 138 switch (adbHardware) { 139 case ADB_HW_CUDA: 140 intr_establish(irq, IST_LEVEL, IPL_TTY, adb_intr_cuda, sc); 141 break; 142 case ADB_HW_PMU: 143 intr_establish(irq, IST_LEVEL, IPL_TTY, pm_intr, sc); 144 pm_init(); 145 break; 146 } 147 148 adb_todr_init(); 149 150 #if NAPM > 0 151 /* Magic for signalling the apm driver to match. */ 152 aa_args.origaddr = ADBADDR_APM; 153 aa_args.adbaddr = ADBADDR_APM; 154 aa_args.handler_id = ADBADDR_APM; 155 156 (void)config_found(self, &aa_args, NULL); 157 #endif 158 159 /* 160 * see if we're supposed to have an ADB bus 161 * since some PowerBooks don't have one and their PMUs barf on ADB 162 * commands we bail here if there's no adb node 163 */ 164 if (!adb_node) 165 return; 166 167 #ifdef ADB_DEBUG 168 if (adb_debug) 169 printf("adb: done with ADBReInit\n"); 170 #endif 171 totaladbs = CountADBs(); 172 173 printf("%d targets\n", totaladbs); 174 175 #if NAED > 0 176 /* ADB event device for compatibility */ 177 aa_args.origaddr = 0; 178 aa_args.adbaddr = 0; 179 aa_args.handler_id = 0; 180 (void)config_found(self, &aa_args, adbprint); 181 #endif 182 183 /* for each ADB device */ 184 for (adbindex = 1; adbindex <= totaladbs; adbindex++) { 185 /* Get the ADB information */ 186 adbaddr = GetIndADB(&adbdata, adbindex); 187 188 aa_args.origaddr = adbdata.origADBAddr; 189 aa_args.adbaddr = adbaddr; 190 aa_args.handler_id = adbdata.devType; 191 192 (void)config_found(self, &aa_args, adbprint); 193 } 194 195 if (adbHardware == ADB_HW_CUDA) 196 adb_cuda_autopoll(); 197 adb_polling = 0; 198 199 } 200 201 int 202 adbprint(void *args, const char *name) 203 { 204 struct adb_attach_args *aa_args = (struct adb_attach_args *)args; 205 int rv = UNCONF; 206 207 if (name) { /* no configured device matched */ 208 rv = UNSUPP; /* most ADB device types are unsupported */ 209 210 /* print out what kind of ADB device we have found */ 211 aprint_normal("%s addr %d: ", name, aa_args->adbaddr); 212 switch(aa_args->origaddr) { 213 #ifdef DIAGNOSTIC 214 case 0: 215 aprint_normal("ADB event device"); 216 rv = UNCONF; 217 break; 218 case ADBADDR_SECURE: 219 aprint_normal("security dongle (%d)", 220 aa_args->handler_id); 221 break; 222 #endif 223 case ADBADDR_MAP: 224 aprint_normal("mapped device (%d)", 225 aa_args->handler_id); 226 rv = UNCONF; 227 break; 228 case ADBADDR_REL: 229 aprint_normal("relative positioning device (%d)", 230 aa_args->handler_id); 231 rv = UNCONF; 232 break; 233 #ifdef DIAGNOSTIC 234 case ADBADDR_ABS: 235 switch (aa_args->handler_id) { 236 case ADB_ARTPAD: 237 aprint_normal("WACOM ArtPad II"); 238 break; 239 default: 240 aprint_normal("absolute positioning device (%d)", 241 aa_args->handler_id); 242 break; 243 } 244 break; 245 case ADBADDR_DATATX: 246 aprint_normal("data transfer device (modem?) (%d)", 247 aa_args->handler_id); 248 break; 249 case ADBADDR_MISC: 250 switch (aa_args->handler_id) { 251 case ADB_POWERKEY: 252 aprint_normal("Sophisticated Circuits PowerKey"); 253 break; 254 default: 255 aprint_normal("misc. device (remote control?) (%d)", 256 aa_args->handler_id); 257 break; 258 } 259 break; 260 default: 261 aprint_normal("unknown type device, (handler %d)", 262 aa_args->handler_id); 263 break; 264 #endif /* DIAGNOSTIC */ 265 } 266 } else /* a device matched and was configured */ 267 aprint_normal(" addr %d: ", aa_args->adbaddr); 268 269 return rv; 270 } 271 272 #define DIFF19041970 2082844800 273 274 static int 275 adb_todr_get(todr_chip_handle_t tch, volatile struct timeval *tvp) 276 { 277 unsigned long sec; 278 279 if (adb_read_date_time(&sec) != 0) 280 return EIO; 281 tvp->tv_sec = sec - DIFF19041970; 282 tvp->tv_usec = 0; 283 return 0; 284 } 285 286 static int 287 adb_todr_set(todr_chip_handle_t tch, volatile struct timeval *tvp) 288 { 289 unsigned long sec; 290 291 sec = tvp->tv_sec + DIFF19041970; 292 return adb_set_date_time(sec) ? EIO : 0; 293 } 294 295 void 296 adb_todr_init(void) 297 { 298 static struct todr_chip_handle tch = { 299 .todr_gettime = adb_todr_get, 300 .todr_settime = adb_todr_set 301 }; 302 303 todr_attach(&tch); 304 } 305