1 /* $NetBSD: adb.c,v 1.37 2021/08/07 16:18:57 thorpej 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: adb.c,v 1.37 2021/08/07 16:18:57 thorpej Exp $"); 30 31 #include <sys/param.h> 32 #include <sys/device.h> 33 #include <sys/fcntl.h> 34 #include <sys/poll.h> 35 #include <sys/select.h> 36 #include <sys/proc.h> 37 #include <sys/signalvar.h> 38 #include <sys/systm.h> 39 40 #include <sys/bus.h> 41 #include <machine/autoconf.h> 42 #include <machine/pio.h> 43 44 #include <macppc/dev/adbvar.h> 45 #include <macppc/dev/akbdvar.h> 46 #include <macppc/dev/pm_direct.h> 47 #include <macppc/dev/viareg.h> 48 49 #include <dev/clock_subr.h> 50 #include <dev/ofw/openfirm.h> 51 52 #include "aed.h" 53 #include "apm.h" 54 55 /* 56 * Function declarations. 57 */ 58 static int adbmatch(device_t, cfdata_t, void *); 59 static void adbattach(device_t, device_t, void *); 60 static int adbprint(void *, const char *); 61 static void adb_todr_init(void); 62 63 /* 64 * Global variables. 65 */ 66 int adb_polling = 0; /* Are we polling? (Debugger mode) */ 67 int adb_initted = 0; /* adb_init() has completed successfully */ 68 #ifdef ADB_DEBUG 69 int adb_debug = 0; /* Output debugging messages */ 70 #endif /* ADB_DEBUG */ 71 72 /* 73 * Driver definition. 74 */ 75 CFATTACH_DECL_NEW(adb, sizeof(struct adb_softc), 76 adbmatch, adbattach, NULL, NULL); 77 78 static int 79 adbmatch(device_t parent, cfdata_t cf, void *aux) 80 { 81 struct confargs *ca = aux; 82 83 if (ca->ca_nreg < 8) 84 return 0; 85 86 if (ca->ca_nintr < 4) 87 return 0; 88 89 if (strcmp(ca->ca_name, "via-cuda") == 0) 90 return 1; 91 92 if (strcmp(ca->ca_name, "via-pmu") == 0) 93 return 1; 94 95 return 0; 96 } 97 98 static void 99 adbattach(device_t parent, device_t self, void *aux) 100 { 101 struct adb_softc *sc = device_private(self); 102 struct confargs *ca = aux; 103 int irq = ca->ca_intr[0]; 104 int node; 105 ADBDataBlock adbdata; 106 struct adb_attach_args aa_args; 107 int totaladbs; 108 int adbindex, adbaddr, adb_node; 109 110 extern volatile uint8_t *Via1Base; 111 112 ca->ca_reg[0] += ca->ca_baseaddr; 113 114 sc->sc_regbase = mapiodev(ca->ca_reg[0], ca->ca_reg[1], false); 115 Via1Base = sc->sc_regbase; 116 117 if (strcmp(ca->ca_name, "via-cuda") == 0) 118 adbHardware = ADB_HW_CUDA; 119 else if (strcmp(ca->ca_name, "via-pmu") == 0) 120 adbHardware = ADB_HW_PMU; 121 122 node = of_getnode_byname(OF_parent(ca->ca_node), "extint-gpio1"); 123 if (node) 124 OF_getprop(node, "interrupts", &irq, 4); 125 126 printf(" irq %d: ", irq); 127 128 adb_polling = 1; 129 adb_node = of_getnode_byname(ca->ca_node, "adb"); 130 if (adb_node) 131 ADBReInit(); 132 133 switch (adbHardware) { 134 case ADB_HW_CUDA: 135 intr_establish_xname(irq, IST_LEVEL, IPL_TTY, adb_intr_cuda, sc, 136 device_xname(self)); 137 break; 138 case ADB_HW_PMU: 139 intr_establish_xname(irq, IST_LEVEL, IPL_TTY, pm_intr, sc, 140 device_xname(self)); 141 pm_init(); 142 break; 143 } 144 145 adb_todr_init(); 146 147 #if NAPM > 0 148 /* Magic for signalling the apm driver to match. */ 149 aa_args.origaddr = ADBADDR_APM; 150 aa_args.adbaddr = ADBADDR_APM; 151 aa_args.handler_id = ADBADDR_APM; 152 153 (void)config_found(self, &aa_args, NULL, CFARGS_NONE); 154 #endif 155 156 /* 157 * see if we're supposed to have an ADB bus 158 * since some PowerBooks don't have one and their PMUs barf on ADB 159 * commands we bail here if there's no adb node 160 */ 161 if (!adb_node) 162 return; 163 164 #ifdef ADB_DEBUG 165 if (adb_debug) 166 printf("adb: done with ADBReInit\n"); 167 #endif 168 totaladbs = CountADBs(); 169 170 printf("%d targets\n", totaladbs); 171 172 #if NAED > 0 173 /* ADB event device for compatibility */ 174 aa_args.origaddr = 0; 175 aa_args.adbaddr = 0; 176 aa_args.handler_id = 0; 177 (void)config_found(self, &aa_args, adbprint, CFARGS_NONE); 178 #endif 179 180 /* for each ADB device */ 181 for (adbindex = 1; adbindex <= totaladbs; adbindex++) { 182 /* Get the ADB information */ 183 adbaddr = GetIndADB(&adbdata, adbindex); 184 185 aa_args.origaddr = adbdata.origADBAddr; 186 aa_args.adbaddr = adbaddr; 187 aa_args.handler_id = adbdata.devType; 188 189 (void)config_found(self, &aa_args, adbprint, CFARGS_NONE); 190 } 191 192 if (adbHardware == ADB_HW_CUDA) 193 adb_cuda_autopoll(); 194 adb_polling = 0; 195 196 } 197 198 int 199 adbprint(void *args, const char *name) 200 { 201 struct adb_attach_args *aa_args = (struct adb_attach_args *)args; 202 int rv = UNCONF; 203 204 if (name) { /* no configured device matched */ 205 rv = UNSUPP; /* most ADB device types are unsupported */ 206 207 /* print out what kind of ADB device we have found */ 208 aprint_normal("%s addr %d: ", name, aa_args->adbaddr); 209 switch(aa_args->origaddr) { 210 #ifdef DIAGNOSTIC 211 case 0: 212 aprint_normal("ADB event device"); 213 rv = UNCONF; 214 break; 215 case ADBADDR_SECURE: 216 aprint_normal("security dongle (%d)", 217 aa_args->handler_id); 218 break; 219 #endif 220 case ADBADDR_MAP: 221 aprint_normal("mapped device (%d)", 222 aa_args->handler_id); 223 rv = UNCONF; 224 break; 225 case ADBADDR_REL: 226 aprint_normal("relative positioning device (%d)", 227 aa_args->handler_id); 228 rv = UNCONF; 229 break; 230 #ifdef DIAGNOSTIC 231 case ADBADDR_ABS: 232 switch (aa_args->handler_id) { 233 case ADB_ARTPAD: 234 aprint_normal("WACOM ArtPad II"); 235 break; 236 default: 237 aprint_normal("absolute positioning device (%d)", 238 aa_args->handler_id); 239 break; 240 } 241 break; 242 case ADBADDR_DATATX: 243 aprint_normal("data transfer device (modem?) (%d)", 244 aa_args->handler_id); 245 break; 246 case ADBADDR_MISC: 247 switch (aa_args->handler_id) { 248 case ADB_POWERKEY: 249 aprint_normal("Sophisticated Circuits PowerKey"); 250 break; 251 default: 252 aprint_normal("misc. device (remote control?) (%d)", 253 aa_args->handler_id); 254 break; 255 } 256 break; 257 default: 258 aprint_normal("unknown type device, (handler %d)", 259 aa_args->handler_id); 260 break; 261 #endif /* DIAGNOSTIC */ 262 } 263 } else /* a device matched and was configured */ 264 aprint_normal(" addr %d: ", aa_args->adbaddr); 265 266 return rv; 267 } 268 269 #define DIFF19041970 2082844800 270 271 static int 272 adb_todr_get(todr_chip_handle_t tch, struct timeval *tvp) 273 { 274 unsigned long sec; 275 276 if (adb_read_date_time(&sec) != 0) 277 return EIO; 278 tvp->tv_sec = sec - DIFF19041970; 279 tvp->tv_usec = 0; 280 return 0; 281 } 282 283 static int 284 adb_todr_set(todr_chip_handle_t tch, struct timeval *tvp) 285 { 286 unsigned long sec; 287 288 sec = tvp->tv_sec + DIFF19041970; 289 return adb_set_date_time(sec) ? EIO : 0; 290 } 291 292 void 293 adb_todr_init(void) 294 { 295 static struct todr_chip_handle tch = { 296 .todr_gettime = adb_todr_get, 297 .todr_settime = adb_todr_set 298 }; 299 300 todr_attach(&tch); 301 } 302
Indexes created Sat Sep 20 22:09:52 GMT 2025