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adb.c revision 1.29
      1 /*	$NetBSD: adb.c,v 1.29 1999/11/05 18:27:11 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/itevar.h>
     50 #include <mac68k/dev/kbdvar.h>
     51 
     52 #include "aed.h"		/* ADB Event Device for compatibility */
     53 
     54 /*
     55  * Function declarations.
     56  */
     57 static int	adbmatch __P((struct device *, struct cfdata *, void *));
     58 static void	adbattach __P((struct device *, struct device *, void *));
     59 static int	adbprint __P((void *, const char *));
     60 void		adb_config_interrupts __P((struct device *));
     61 
     62 extern void	adb_jadbproc __P((void));
     63 
     64 /*
     65  * Global variables.
     66  */
     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 extern struct	mac68k_machine_S mac68k_machine;
     73 extern int	adbHardware;
     74 extern char	*adbHardwareDescr[];
     75 
     76 /*
     77  * Driver definition.
     78  */
     79 struct cfattach adb_ca = {
     80 	sizeof(struct device), adbmatch, adbattach
     81 };
     82 
     83 static int
     84 adbmatch(parent, cf, aux)
     85 	struct device *parent;
     86 	struct cfdata *cf;
     87 	void *aux;
     88 {
     89 	static int adb_matched = 0;
     90 
     91 	/* Allow only one instance. */
     92 	if (adb_matched)
     93 		return (0);
     94 
     95 	adb_matched = 1;
     96 	return (1);
     97 }
     98 
     99 static void
    100 adbattach(parent, self, aux)
    101 	struct device *parent, *self;
    102 	void *aux;
    103 {
    104 	printf("\n");
    105 
    106 	/*
    107 	 * Defer configuration until interrupts are enabled.
    108 	 */
    109 	config_interrupts(self, adb_config_interrupts);
    110 }
    111 
    112 void
    113 adb_config_interrupts(self)
    114 	struct device *self;
    115 {
    116 	ADBDataBlock adbdata;
    117 	struct adb_attach_args aa_args;
    118 	int totaladbs;
    119 	int adbindex, adbaddr;
    120 
    121 	printf("%s", self->dv_xname);
    122 
    123 #ifdef MRG_ADB
    124 	/*
    125 	 * Even if serial console only, some models require the
    126          * ADB in order to get the date/time and do soft power.
    127 	 */
    128 	if ((mac68k_machine.serial_console & 0x03)) {
    129 		printf(": using serial console\n");
    130 		return;
    131 	}
    132 
    133 	if (!mrg_romready()) {
    134 		printf(": no ROM ADB driver in this kernel for this machine\n");
    135 		return;
    136 	}
    137 
    138 #ifdef ADB_DEBUG
    139 	if (adb_debug)
    140 		printf("adb: call mrg_initadbintr\n");
    141 #endif
    142 
    143 	mrg_initadbintr();	/* Mac ROM Glue okay to do ROM intr */
    144 #ifdef ADB_DEBUG
    145 	if (adb_debug)
    146 		printf("adb: returned from mrg_initadbintr\n");
    147 #endif
    148 
    149 	/* ADBReInit pre/post-processing */
    150 	JADBProc = adb_jadbproc;
    151 
    152 	/* Initialize ADB */
    153 #ifdef ADB_DEBUG
    154 	if (adb_debug)
    155 		printf("adb: calling ADBAlternateInit.\n");
    156 #endif
    157 
    158 	printf(" (mrg)");
    159 	ADBAlternateInit();
    160 #else
    161 	ADBReInit();
    162 	printf(" (direct, %s)", adbHardwareDescr[adbHardware]);
    163 #endif /* MRG_ADB */
    164 
    165 #ifdef ADB_DEBUG
    166 	if (adb_debug)
    167 		printf("adb: done with ADBReInit\n");
    168 #endif
    169 
    170 	totaladbs = CountADBs();
    171 
    172 	printf(": %d targets\n", totaladbs);
    173 
    174 #if NAED > 0
    175 	/* ADB event device for compatibility */
    176 	aa_args.origaddr = 0;
    177 	aa_args.adbaddr = 0;
    178 	aa_args.handler_id = 0;
    179 	(void)config_found(self, &aa_args, adbprint);
    180 #endif
    181 
    182 	/* for each ADB device */
    183 	for (adbindex = 1; adbindex <= totaladbs; adbindex++) {
    184 		/* Get the ADB information */
    185 		adbaddr = GetIndADB(&adbdata, adbindex);
    186 
    187 		aa_args.origaddr = (int)(adbdata.origADBAddr);
    188 		aa_args.adbaddr = adbaddr;
    189 		aa_args.handler_id = (int)(adbdata.devType);
    190 
    191 		(void)config_found(self, &aa_args, adbprint);
    192 	}
    193 }
    194 
    195 
    196 int
    197 adbprint(args, name)
    198         void *args;
    199         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 		printf("%s addr %d: ", name, aa_args->origaddr);
    209 		switch(aa_args->origaddr) {
    210 #ifdef DIAGNOSTIC
    211 		case 0:
    212 			printf("ADB event device");
    213 			rv = UNCONF;
    214 			break;
    215 		case ADBADDR_SECURE:
    216 			printf("security dongle (%d)", aa_args->handler_id);
    217 			break;
    218 #endif
    219 		case ADBADDR_MAP:
    220 			printf("mapped device (%d)", aa_args->handler_id);
    221 			rv = UNCONF;
    222 			break;
    223 		case ADBADDR_REL:
    224 			printf("relative positioning device (%d)",
    225 			    aa_args->handler_id);
    226 			rv = UNCONF;
    227 			break;
    228 #ifdef DIAGNOSTIC
    229 		case ADBADDR_ABS:
    230 			switch (aa_args->handler_id) {
    231 			case ADB_ARTPAD:
    232 				printf("WACOM ArtPad II");
    233 				break;
    234 			default:
    235 				printf("absolute positioning device (%d)",
    236 				    aa_args->handler_id);
    237 				break;
    238 			}
    239 			break;
    240 		case ADBADDR_DATATX:
    241 			printf("data transfer device (modem?) (%d)",
    242 			    aa_args->handler_id);
    243 			break;
    244 		case ADBADDR_MISC:
    245 			switch (aa_args->handler_id) {
    246 			case ADB_POWERKEY:
    247 				printf("Sophisticated Circuits PowerKey");
    248 				break;
    249 			default:
    250 				printf("misc. device (remote control?) (%d)",
    251 				    aa_args->handler_id);
    252 				break;
    253 			}
    254 			break;
    255 		default:
    256 			printf("unknown type device, (handler %d)",
    257 			    aa_args->handler_id);
    258 			break;
    259 #endif /* DIAGNOSTIC */
    260 		}
    261 	} else		/* a device matched and was configured */
    262                 printf(" addr %d: ", aa_args->origaddr);
    263 
    264 	return (rv);
    265 }
    266