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adb.c revision 1.34
      1 /*	$NetBSD: adb.c,v 1.34 2000/02/14 07:01:45 scottr 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 "opt_adb.h"
     34 
     35 #include <sys/param.h>
     36 #include <sys/device.h>
     37 #include <sys/fcntl.h>
     38 #include <sys/poll.h>
     39 #include <sys/select.h>
     40 #include <sys/proc.h>
     41 #include <sys/signalvar.h>
     42 #include <sys/systm.h>
     43 
     44 #include <machine/autoconf.h>
     45 #include <machine/cpu.h>
     46 
     47 #include <mac68k/mac68k/macrom.h>
     48 #include <mac68k/dev/adbvar.h>
     49 #include <mac68k/dev/akbdvar.h>
     50 
     51 #include "aed.h"		/* ADB Event Device for compatibility */
     52 
     53 /*
     54  * Function declarations.
     55  */
     56 static int	adbmatch __P((struct device *, struct cfdata *, void *));
     57 static void	adbattach __P((struct device *, struct device *, void *));
     58 static int	adbprint __P((void *, const char *));
     59 void		adb_config_interrupts __P((struct device *));
     60 
     61 extern void	adb_jadbproc __P((void));
     62 
     63 /*
     64  * Global variables.
     65  */
     66 int	adb_polling = 0;	/* Are we polling?  (Debugger mode) */
     67 #ifdef ADB_DEBUG
     68 #if 1
     69 int	adb_debug = 0xff;
     70 #else
     71 int	adb_debug = 0;		/* Output debugging messages */
     72 #endif
     73 #endif /* ADB_DEBUG */
     74 
     75 extern struct	mac68k_machine_S mac68k_machine;
     76 extern int	adbHardware;
     77 extern char	*adbHardwareDescr[];
     78 
     79 /*
     80  * Driver definition.
     81  */
     82 struct cfattach adb_ca = {
     83 	sizeof(struct device), adbmatch, adbattach
     84 };
     85 
     86 static int
     87 adbmatch(parent, cf, aux)
     88 	struct device *parent;
     89 	struct cfdata *cf;
     90 	void *aux;
     91 {
     92 	static int adb_matched = 0;
     93 
     94 	/* Allow only one instance. */
     95 	if (adb_matched)
     96 		return (0);
     97 
     98 	adb_matched = 1;
     99 	return (1);
    100 }
    101 
    102 static void
    103 adbattach(parent, self, aux)
    104 	struct device *parent, *self;
    105 	void *aux;
    106 {
    107 	printf("\n");
    108 
    109 	/*
    110 	 * Defer configuration until interrupts are enabled.
    111 	 */
    112 	config_interrupts(self, adb_config_interrupts);
    113 }
    114 
    115 void
    116 adb_config_interrupts(self)
    117 	struct device *self;
    118 {
    119 	ADBDataBlock adbdata;
    120 	struct adb_attach_args aa_args;
    121 	int totaladbs;
    122 	int adbindex, adbaddr;
    123 
    124 	printf("%s", self->dv_xname);
    125 	adb_polling = 1;
    126 
    127 #ifdef MRG_ADB
    128 	/*
    129 	 * Even if serial console only, some models require the
    130 	 * ADB in order to get the date/time and do soft power.
    131 	 */
    132 	if ((mac68k_machine.serial_console & 0x03)) {
    133 		printf(": using serial console\n");
    134 		return;
    135 	}
    136 
    137 	if (!mrg_romready()) {
    138 		printf(": no ROM ADB driver in this kernel for this machine\n");
    139 		return;
    140 	}
    141 
    142 #ifdef ADB_DEBUG
    143 	if (adb_debug)
    144 		printf("adb: call mrg_initadbintr\n");
    145 #endif
    146 
    147 	mrg_initadbintr();	/* Mac ROM Glue okay to do ROM intr */
    148 #ifdef ADB_DEBUG
    149 	if (adb_debug)
    150 		printf("adb: returned from mrg_initadbintr\n");
    151 #endif
    152 
    153 	/* ADBReInit pre/post-processing */
    154 	JADBProc = adb_jadbproc;
    155 
    156 	/* Initialize ADB */
    157 #ifdef ADB_DEBUG
    158 	if (adb_debug)
    159 		printf("adb: calling ADBAlternateInit.\n");
    160 #endif
    161 
    162 	printf(" (mrg)");
    163 	ADBAlternateInit();
    164 #else
    165 	ADBReInit();
    166 	printf(" (direct, %s)", adbHardwareDescr[adbHardware]);
    167 #endif /* MRG_ADB */
    168 
    169 #ifdef ADB_DEBUG
    170 	if (adb_debug)
    171 		printf("adb: done with ADBReInit\n");
    172 #endif
    173 
    174 	totaladbs = CountADBs();
    175 
    176 	printf(": %d target%s\n", totaladbs, (totaladbs == 1) ? "" : "s");
    177 
    178 #if NAED > 0
    179 	/* ADB event device for compatibility */
    180 	aa_args.origaddr = 0;
    181 	aa_args.adbaddr = 0;
    182 	aa_args.handler_id = 0;
    183 	(void)config_found(self, &aa_args, adbprint);
    184 #endif
    185 
    186 	/* for each ADB device */
    187 	for (adbindex = 1; adbindex <= totaladbs; adbindex++) {
    188 		/* Get the ADB information */
    189 		adbaddr = GetIndADB(&adbdata, adbindex);
    190 
    191 		aa_args.origaddr = (int)(adbdata.origADBAddr);
    192 		aa_args.adbaddr = adbaddr;
    193 		aa_args.handler_id = (int)(adbdata.devType);
    194 
    195 		(void)config_found(self, &aa_args, adbprint);
    196 	}
    197 	adb_polling = 0;
    198 }
    199 
    200 
    201 int
    202 adbprint(args, name)
    203 	void *args;
    204 	const char *name;
    205 {
    206 	struct adb_attach_args *aa_args = (struct adb_attach_args *)args;
    207 	int rv = UNCONF;
    208 
    209 	if (name) {	/* no configured device matched */
    210 		rv = UNSUPP; /* most ADB device types are unsupported */
    211 
    212 		/* print out what kind of ADB device we have found */
    213 		printf("%s addr %d: ", name, aa_args->origaddr);
    214 		switch(aa_args->origaddr) {
    215 #ifdef DIAGNOSTIC
    216 		case 0:
    217 			printf("ADB event device");
    218 			rv = UNCONF;
    219 			break;
    220 		case ADBADDR_SECURE:
    221 			printf("security dongle (%d)", aa_args->handler_id);
    222 			break;
    223 #endif
    224 		case ADBADDR_MAP:
    225 			printf("mapped device (%d)", aa_args->handler_id);
    226 			rv = UNCONF;
    227 			break;
    228 		case ADBADDR_REL:
    229 			printf("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 				printf("WACOM ArtPad II");
    238 				break;
    239 			default:
    240 				printf("absolute positioning device (%d)",
    241 				    aa_args->handler_id);
    242 				break;
    243 			}
    244 			break;
    245 		case ADBADDR_DATATX:
    246 			printf("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 				printf("Sophisticated Circuits PowerKey");
    253 				break;
    254 			default:
    255 				printf("misc. device (remote control?) (%d)",
    256 				    aa_args->handler_id);
    257 				break;
    258 			}
    259 			break;
    260 		default:
    261 			printf("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 		printf(" addr %d: ", aa_args->origaddr);
    268 
    269 	return (rv);
    270 }
    271